Display Story2. What's Difference between LCD and PDP

I wrote an article about a display focusing on smart revolution. From now on, I am going to make a posting focusing the display by itself. There were many considerations what is selected to the first subject. And it was decided as first subject to difference driving method between LCD and PDP, which was asked at an education for incoming employees.

What's difference between LCD and PDP

What come to your mind when you have question about a difference between LCD and PDP? If you were to consider selecting a TV between LCD and PDP, you might come to mind responsive time, luminance and power consumption. When these displays were in keen competition, there were some words that if you want to see a movie, select PDP and else if you want to see a drama, you should buy LCD. Although PDP are dusky comparing LCD, PDP has merit to motion blur and it is effective when you see action movie switching scenes quickly. LCD has advantages bright luminance and low power consumption.

Why are happened these differences? It is because there is a difference of driving method between two displays. How about watching a movie comparing LCD and PDP before giving a detailed explanation? It is a movie which film a screen of LCD and PDP directly and this movie shows wide difference between two displays.

- This movie is directly captured to Screen of PDP and LCD by Slow-Motion of iPhone 5s

Did you catch a difference between PDP and LCD in the movie? Is there flicker in PDP and LCD is not? And is there motion blur in LCD more than PDP? Surely, this difference doesn't mean a gap of performance fully. When you watch a TV directly, you might not catch a flicker on PDP. But, this difference of driving method is important factor to make a difference of performance between two displays. Above movie is filmed at 1/4x speed and it was possible to be supported 120FPS which mean to film 120frames per 1s. That is why you can feel a difference between these displays. If you might not catch a difference when you see it directly.

Difference between driving method of LCD and PDP

Like aforementioned, this difference is caused by different driving method. It can't help beging different driving method because these displays have different basic structure making a light source. When they had in competition, they have clear merit each other. But at now when I am writing this article, LCD seems to win on tight race with PDP. And many companies have dropped to develop PDP TV.

There was surely different and each had merit to appear to consumers. But, LCD could get a dominant position in competition with PDP because LCD had different structure and driving method which has advantage to revise its problem more easy than PDP.

Different driving method by difference of basis structure.

Then, I want introduce an elementary difference between two displays. LCD used to be called AMTFT (active-matrix thin film transistor) - LCD. This has a feature to adjust amount of light from backlight unit through tilted liquid crystal between two polarizing plates.

PDP(Plasma Display Panel) is a display making light using plasma effect. You can easily understand this technique based on a technology of fluorescent light. The display panel utilize small cells containing electrically charged ionized gases.

-Left is PDP's basic structure, right side is LCD's basic structure.-

Actually direction of this article is not detailed explain about difference of structure above mentioned because I want show display's difference from my view with different driving method. But for this explain, their basic structure has to be explained first briefly.

AMTFT has active-matrix structure by using TFTs. This structure makes to be possible to maintain a voltage as a pixel's need during over schedule time. The voltage supplying a pixel is maintained during a frame time and it tilts liquid crystal according to supplied voltage. The liquid crystal has interesting feature that a degree it is tilted adjust amount of light on a pixel. To add detailed explain, two polarizing plate play a role blocking light and tilted liquid crystal make to be possible to pass their block.

But, there is a problem to use liquid crystal it is core of LCD. When supplying voltage it, so many time is needed to move we want. That is why LCD driving needs to secure time to maintain supplying voltage and TFT and Cap play an important role on this driving method. This method use to be called 'Analog Driving' because each pixel has a different voltage to display gray-scale.

PDP is made of 2 sheets of glass with 2 gases stored between the sheets. Its driving consists of addressing and sustain. Each row of a frame needs addressing and the frame makes light after finishing whole addressing of rows. PDP's structure should need sustain which is similar way to fluorescent tubes used for lighting and it makes to be hard using method to maintain a voltage for a frame time like LCD's one. Also it needs very high voltage and a different voltage doesn't make a detailed difference of light like LCD's one. That's why PDP adapt different driving method which makes a light by fast repetition of addressing and sustain. At this time, amount of light is same every sustain and amount of light is decided by a number of sustains. Therefore this method used to be called 'Digital Driving' because amount of light is divided by time repeating number of sustain.

Let's compare driving methods

There is difference the number of image for a frame time. PDP needs 8 subframes, LCD needs just 1 frame.

1 frame time means that the time need to drive display for a frame. PDP drives a frame including 8 subframes at 60Hz and then it needs 16ms to show a full frame. And LCD changes a frame every 120Hz and it means frame time is 8ms. On this basement, PDP expresses 1frame by dividing with 8 sub frames. At example, there is a image having 8bit resolution, 256 grayscale (normally, PC generates 8bit, 256 grayscale). and these subframes make a whole frame by showing them during a frame time. Eyes used to be known to divide a image every almost 45Hz, which means that light of images would be accumulated and be combined as 1 image in this period. That is why people don't recognize 8 other images when they watch PDP. You can check this factor at an above figure. At this one, PDP has 8 different subframes but LCD has just 1 frame.

LCD can show a frame image using just one frame like aforementioned. This display can support different voltages to each pixel and it makes different light according to a voltage of a pixel. It means that LCD can control every pixel in a frame time. That's why a image which it want show corresponds to a displayed image like above figure. This different method showing a frame image between PDP and LCD aforementioned is by the difference of driving method, that is a difference between digital driving and analog driving.

What is a difference of feature between two display.

Did you remember a difference feature between PDP and LCD aforementioned in front of this article? At repetition, almost TV seller would compare lists like responsive time, luminance, power consumption and etc to show a difference.

	PDP	LCD
Responsive Time	●
Luminance		●
Power Consumption		●

- Each merit s of PDP and LCD

I have explained that different driving method cause difference of display's feature. And from now on, I want to focus why different driving method makes other results.

1. Responsive Time : In the display, responsive time means how much fast showing a image. Aforementioned, eyes have feature to remember before image according to its duration on display. If a image's switching time were slower and slower, it would to be increase probability to be happened as blur. It used to be called motion blur and PDP has a merit this blur because this display shows 8 different sub frame with over hundreds sustain during a frame time. It isn't to compare that LCD shows just 1frame during same time. These difference makes different responsive time between them and it makes PDP is better than LCD when watching action movie passing scene quickly.

2. Luminance : Luminance means brightness on the display. When you drop by shop for comparing TVs, you may easily recognize display's difference through their brightness. The brighter display tempts consumers effectively and LCD has a strong merit at this point. These difference of brightness is hard to see it's by only difference of driving method because they are have different basic structure to make a light. But, it is fact that the difference of driving method make a different time showing light during a frame time and it affect their brightness. As aforementioned, eyes have a feature to recognize something by accumulating light in specific period. For example, if there are 100nit (luminance's unit) for a 8ms and 200nit for 4ms (0nit for other 4ms), they would be recognized as same luminance. PDP has a relative short time to make a light because it should be initialize voltage every addressing of a subframe. The limitation about amount of light during short time can't help being existed and this factor makes PDP can't make brighter screen than LCD.

Amount of light which eyes can recognize is decided by time and its brightness 

3. Power Consumption : Power consumption is on extension line of the luminance. First, there is a huge difference using voltages. PDP use 60V at data sourcing part and us 180~200V at gate addressing part. On the other hand, LCD use 24V at backlight part and use 10V at data sourcing. Already there is difference between voltages to generate default structure of each displays and beside, LCD use hold-type driving method which needs low voltage to maintain voltage during a frame time. For example, if LCD have a just 1/10 frame time to make a luminance according to 1 frame, there would be huge difference of voltage and current comparing conventional method.
( The luminance of backlight is proportional to current, which mean that 10x current is needed to make same brightness like hold-type method and it require high voltage according increase current. These would reduce power efficiency and need a high performance power system. PDP use digital driving method which have a short time to make a luminance and it is one of reasons that PDP get worser power efficiency than LCD.

How can walk ahead LCD on intense competition with PDP.

The display has taken innovation to give an experience like seeing real things to people and it is necessary to natural movement and bright screen like on genial weather. In order to implement these feature, PDP has been also to make an effort for bright screen and low power consumption but it couldn't page off its limitation. Contrastively, LCD's effort which change backlight unit to LED make its merit more strong and widen a gab with PDP. Also its demerit which is response time can be overcame by revising driving frequency (60Hz → 240Hz) and overdriving technique. It could be possible that LCD have different basic structure and driving method with PDP.

Bottom Line

I organize contents which have remained in my brain through this article. This subject can be interesting because it reflects many techniques to drive a display circuit and gives other point of view as driving method comparing between LCD and PDP. Postings which is going to be wrote would connects up this subject because this posting include overall concept related on from techniques fixing aforementioned problem to novel 3D driving and OLED driving method.

In above mention, there seems to a next item. I have a plan to write about motion blur which is demerit to LCD. Then I want finish this article now and I wish meet you with better posting.

Best Regards
gungs

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About the society which doesn't blame each other with Octonauts

About the society which doesn't blame each other with Octonauts sorting of kids animations.

There are some new experiences when taking care children and kids animation included among these lists is necessary to care them because it is so effective visually. After kids watched an animation, my name used to be changed as its characters name. There is a moment suddenly changed my name as a different charter when my kid's concern moves different animation. I had get so many names by my kids and I have different name recently according to 'Professor. Inlking' from an animation. And it is named Octonauts.

In brief this animation, there is a team of eight adventurers who live in an undersea base, the Octopod and they help and rescue living things which fall into the danger. It is very interesting because it expresses well-organized story keeping tensions. Professor. Inkling who is a character according to my name by my kids is a member of team and he is an octopus having many knowledges. And my wife is called to 'Captain. Banacles' who lead a team and he has a big social existence with lionhearted. I did envy wife's character and demanded to change my name to my kids. But they denied it and called me just 'octopus' because I don't know well like a professor they think. And my kids make their name as Kwazil and Peso who are member of a team.

The content is meaningful and interesting, which is why I see this animation with my kids often. And I had memorable an episode in Octonauts. When watching an episod which eels migrate a destination, I could get food for reflection through some scenes.

I want explain simply these scenes. Eels were moving to their destination and adventurers were running after them with an expedition ship. But strong current of the liver made to hard to control their ship. In this urgent situation, captain commanded Kwazil who is a one-eyed character like cat's shape to turns left directly. But Kwazil denied captain's command and he turned left a wheel of the ship. At the result, the ship bumped a wall of the liver and it is crushed.

In a situation like this, almost people are going to blame the person directly involved in affair and to demand an apology from him. But this episode didn't show this general situation. First, the captain and Kwazii relieve members having concerns through watching this situation through a camera. And at once, Kwazii suggest to follow eels by swimming without a ship and the captain agrees his idea with praise.

When I saw this scene, I thought they do in an indifferent way. And my wife seemed to feel similarly. After finishing this scene, we chat about that.

Wife : How think about a scene we saw some minutes ago? They seems to don't blame each other. Is it different because they are made by foreigners?
Me : I don't know well. I heard it is made by BBC.
Wife : I guess that englishman may not to blame someone. If I were on this situation, I would blame Kwazii seriously.
Me : ('It it correctly right considering your character') I agree.
Wife : Well, It is unnecessary to blame each other
Me : ..

We got a unexpected conversation thanks to Octonauts.
Through this animation, I thought a thing which blaming each other is whether a right answer or not. When I get a bad result, is it helpful to blame others to me?

Surely, I know that it can be different a case by case but this subject remains to me because I have saw so many similar situations in the company. And its end almost makes wound each other.Sometimes we used to determine an attempt to go next step after blaming someone and getting apologize from them who make a problem.

If someone were not unconditional fault, they might not even know that they have a fault. And a collision from blaming someone can be looked in concord at the moment when it is by tilted balance of power between people. But its process remains some leftover each other.

At result, an idea from Kwazii saved an eel getting into trouble in Octonauts. Surely, Kwazii had a fault that he don't listen a command of his captain and he control a handle just he want. I think that it is important how we make an effort to revise current situation rather than bring it out who is wrong because the situation is already happened.

After talking about this scene of Octonauts, I dropped by a McDonald's chain for buying burgers. My children made a noise "Fried Potato" "Fried Potato" as soon as seeing a packing of burgers on my hands. And my wife said "Did you buy fried potato?"

Why should they want fried potato of all foods? I bought a burger set including a biscuit instead of fried potato.

Then, my wife added saying.

Wife : You obviously know that kids like fried potato. don't you?
Me : Then, change them?
Wife : Huh! No.

I am scolded again from her. Although she doesn't said to change it, I have to change bugger set to one including fried potato because I clearly know next situation.

'Honey... you said it is unnecessary to blame. If you don't like a result, it can be just changed easily'

After she have to calm down, I should watch the episode again with her.
I would seem that kids remember all they heard and adults forget all they said.

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Apple Announces to Get Ready for WWDC 2014 June 2-6, San Francisco and Apply for Random Ticket Selection Now.

I am going to be really looking for dates of WWDC 2104 and eventually I get this information through e-mail 1hour ago.Everyday I spent my time to get it's information and a method to register this program. But At now, I can have good feeling because of it's date which crash my other plan.
(I have a plan to oral presentation June 5, San Diego in SID'14)

[WWDC 2014 Poster.

The quote 'Write the code. Change the world' is very impressive]

WWDC 2007 took place from June 11 to 15
WWDC 2008 took place from June 9 to 13
WWDC 2009 took place from June 8 to 12
WWDC 2010 took place from June 7 to 11
WWDC 2011 took place from June 6 to 10
WWDC 2012 took place from June 11 to 15
WWDC 2013 took place from June 10 to 14
WWDC 2014 will take place from June 2 to 6

Like aforementioned, I know this event may happen at June. And I wish the date will be set like WWDC 2011 because I really want to attend the conference after finishing my business. But hope seems to disappear.

Anyway, I tried to register this program, WWDC 2014.

->Click! WWDC2014 Register Page

[The Page of WWDC2014]

In this page, you can see a message about a process to register. And you can check new process mentioned PDT. It isn't first-come first-serve this time around, and instead will take place using random selection between now and April 7 at 10 AM PT.

[The Message after Register]

You can get an opportunity to purchase a WWDC ticket through registration in this page. This result will send your e-mail by 5:00p.m. on April 7, 2014.

The cost is 1599 USD. It can look to be expensive but this ticket sold out in just 2 minute at WWDC 2013. It is because this program gives a really good experience to developers and attendance can be feel honored.

Anyway, I am looking for WWDC 2014. What makes us interesting?
It can be expected like advanced iOS, new function on Os X and entirely new product.
I am waiting iWatch as entirely new product. And I hope unexpected things make me exiting. I want meet WWDC 2014 immediately!

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Display Story1. Smart Revolution and Display's Importance

[ Original Page in Official LG Display Blog (Korean)] 

Recently I watched a drama got a background 20 years ago and I thought the world had changed with many things. Actually, It is unnecessary for comparing 20years ago. Just for 5 years, so many things have changed but these changes are not made by a need of people. These made needs for a people. I can illustrate a smartphone as a representative example. When I entered to a company, iPhone 3gs was just released and other gadgets were at the ready. Almost people seemed to be attracted at unprecedentedness of a smart phone rather than it was indispensable. In particular, It leaded a trend to be called an augmented reality application which can show weather information when you see the sky through a camera of smartphone. I would imagine interesting future through a new function of the smart phone and it has been realized with numerous developers. At now, it is unfamiliar to use a conventional phone and an indefinite future is going to walk in the real world through a smart phone.

▲ Smartphone and SmartTV

Pioneers drawn a image of future and users had absorbed a change with giving praise to an innovation. At present, we are living in the innovation which it was hard to be imagine 10 years ago. If It is ture that I feel like this just because of reaching old age, I seem to live in the best rapid change until now. This change which can be just a beginning used to be called the smart revolution. The reason of what the smart revolution was possible beyond smartphone to smart-TV, smart-watch and the internet of things is because there is a base on the number of revolutions. From now on, I want to tell based revolutions and the future of our lives in the smart revolution because there is a worth and roll of displays in the furure including a direction of my article.

What Make to be Possible the Smart Revolution?

These changes it is based on the smart revolution can be categorized like that user experience(UX) / IC of hardware / battery / communication / display.

▲ UX, AP, Battery, Communication, Display

UX : What smart phone becomes really smart is thanks to be able to operate many functions supporting conventional PC. The operating system(OS) getting bigger and bigger can be lighter by an optimization based on a compatiblitity of between hardware and application and the expandability among various gadget . At last, users can have been able to get PC' experiences through a small gadget. Becoming light is got other expression such as a time reduction for operation OS with application or power reduction for longer battery. Just becoming light don't include all revolutions. On this basement, it was added to multi-touch function called a revolution of UI and sensors such as GPS, gyroscope and etc, which takes an important roll of smart revolution. The user experience (UX) is built by combining aforementioned hardware basement and the big data.

Hardware component : The core value of success of a small gadget is miniature IC called MCU or AP which operates OS , image processing, memory controlling and etc. And it is thanks to advanced semiconductor technique and it results miniature ICs including memories and sensors as well as AP. Through combining an integrated IC, which is based on ASIC technology and semiconductor process called 'nano technique', it is to be possible to a smaller chip than a nail of human and it become based on changes . In here, combining sensors play really important roll to implement UX as on a small thing called smart gadget. 

Battery : The stable power system must be necessary for operating hardware and software.. And it has to be small, chargeable, durable to meet a condition of a small gadget. These were possible by developing lithium ion battery which gets high energy density and supports a charge and reuse.

Communication : At the center of the smart revolution, there were a progress of communication technique. WCDMA build an environment can communicate each other whenever they need it. Also WIFI made stable communication system in the home or office. At now, LTE's day is arrived and whoever can communicate high-capacity multimedia data using a small gadget.

Display : A cellular phone was possible thanks to development of TFT LCD which support display screen on the small device. And a smartphone which support full screen could be made by loading high resolution display. Thanks to the display, a gap of environment which users connect contents was decreased dramatically between mobile and PC.

How these contents are going to be changed

When the first concept of the ubiquitous computing was proposed by Mark Weiser at 1998, it meant "when technology recedes into the background of our lives" and it also meant "whenever, wherever, there is computing" which is possible to be every things on the internet. But the smart phone shakes a border of ubiquitous computing. At now, UX of the smart phone becomes on the each electronic machine and it moves future's one to the present.

How will have changed aforementioned categories of smart revolution? UX will be developed to the direction getting rid of a border between reality and virtual reality. It means that people can touch something, can feel surroundings and can control everything by their sense organ like real life in the virtual world. You can see many examples in the sense of a movie that computing natural gesture and moving a matter through just thinking about that. Presently, there has been many meaningful tries to implement future UX. From now on, it looks to be important to dear with getting data smartly from each sensor rather than making more sensitive sensors.

The hardware component is going to develop smaller and smaller and it will disappear from eyes. The high integration technology makes a performance users want despite of reduction its size as users can't see well. And on this component, a cloud computing technology was graft , which have made to reduce a burden of the hardware's performance. Surely, the performance is important, but it has been developed as that users don't recognize its differences comparing than battery performance's development.

▲ Intel Edison

The Intel announced a computer named 'Edison' which has small size according to a SD Card. And it looks to a finished computer because of operating based on Linux and offering Wifi, Bluetooth and etc function. It is representative example to show that hardware is going to disappear and it has sufficient condition to combine other small gadget. This combination called IoT(internet on things) makes needs of small computing.

The battery has been developed to reduce its size like the hardware component. A need of small size makes to advance low-power technique, a technology increasing battery life and wireless charging method. The battery is so important to be operated on the small thing, but aforementioned future example can be realization using existing power .

The communication has developed the direction operating faster and faster and keeping its communication state. And it requires advanced security technique and new communication system like LI-FI in the ubiquitous period.

Eventually I deal with the display. The display can be categorized in hardware like other component, but it has beed developed as other direction. The people requires its direction to increase size bigger and bigger because they want to see a vivid screen and want feel the reality. And it has advanced its appearance with curved, transparent and supporting 3D. It seems that display's final direction is what support hologram to feel like real-life.

Display Plays Important Roll in Future Technology

In brief, the direction of evolution will be proceeded to actualize the virtual thing and it makes feeling like in the real-life. Almost hardware has became smaller and it will disappear finally by results of advanced technology. But the display has a different tendency comparing other hardware above mentioned. The the display will be bigger and be other shape to give users experience like real-life.

Why did I give a long-winded explanation like aforementioned? The UX and display will have a shape can be felt like real after beyonding threshold of a change. Although the hardware and communication aforementioned are very important in the future, they will get a moment which its perpormance is over its need. And after this mement, these are hard to make a change got impact and it called just advanced specification rather than inovation. The battery has get a hurdle to be flexible, but it's going to be possible with many advanced tries at once. And it's going to walk a way like other hardware component. UX needs more experiences and technologies and its way to be a realization of virtualization. For developing UX, something has to be a prerequisite and it is just the display.

I think that the display's developemt play important roll to make advanced gadgets in the future. Already, so many media deals with the shape of the future and they have a common thing which is based on a display like transparent, curved or whole display of a wall.

Somethimes ago, I watched impressive TV-advertisement of a communication company which is not related on display company. The ad drawn future's image and it was look like future of the display company. As well as this ad, medias aforementined shown display's future. Actually, I majored a uniquitous system and its field closes software rather than hardware. But I selected a display which is near hardware's field because I belived the display will become the criterion can prove the future's development.

▲ Advertisement of some communication company

 

How Much Do You Know the Display

Todays, the display is always nearby you. The smartphone, TV, washing machine, refrigerator and other gadgets having some scareen have the display. TV have advantaged from CRT to PDP, LCD and OLED at now. The smartphone has became to get over retina display having high resolution. 3D technology has been developed to give more sense of reality and it has advanced to many image prossesing for displaying vivid screen. Also there is an effort to meet colors with eyes and there is so many agreement between from making a movie to displaying it.

You might heard a diffrence between PDP and LCD or see 3D dirving technology from some pages of internet . And you might come into contact many information about display's superiority or its future but you might be hard to know detailed information how it is possible or why this changes happend.

Although it can be difficult to know the display well, there are so many interesting story on the process to analize phenomenon and to follow traces. As mentioned above, since the display will be center of various inovations for making advanced future, it can make to afford much food for thought.

I Want to Share an Information of Display 

So I have a plan to give helpful stories for understanding the display to those who have interest and those who will have interest it. This contents divided with 3 categories which are issue , theory and future. The posting is going to fill these categories with new contents related on seminar or exhibition. There is an indefinite part in this plan as ever, but I beleive that its result which is steadily stacked make to guide advanced ways.

▲ Posting Plan

How much do you know the display? I am not an expert who knows everyting about display. But, I know the display how much more interesing it is. Fortunately, I am working in the company giving many chances to get various experiences related on the display. And on my work, I could get special experience with great co-workers and it will help you can understand easily and get interesting.

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Responsive Web Design : with an Example Page of 'Google Web Designer'

Background of Responsive Web Design

Since a mobile gadget supported full web browsing, considerations for web design have been increased.

For supporting other size web, a simple method is what makes 2 different version's website for PC and Mobile. In this case, Mobile version has to be connected to according to its address and PC version has to be linked to different address. It means that if you have website, you just make new site for Mobile without revising existing site.

But there are some problems. 
First, different sites is hard to be managed when you need to update some pages. 
Second, it is hard to give best condition to users because its condition is selected by users and they should consider whether to go Mobile site or PC site.

So, an idea was appeared to adjust site's circumstances responsively, which was started to be called to the responsive web. The responsive web gets information of a connected gadget and responds to each user as best condition.The best simple method is to have 3 version 's different web-size according to gadgets such as Mobile / Tablet / PC. Through these information, the web is released to best size for users.

 

And there is additional advanced technique that it is to get using window size of  a user as well as sorts of gadget. Through this idea, it is possible to give a better solution to users. 
How can make this advanced solution?
Google already implemented the latest technique to their almost web sites to keep up with time.

Analyze Example Responsive web site

This site named 'google web designer' which introduces a tool can web design interactively based on HTML5.  

 

As first action, I connected to the site above mentioned by Mac. (13-inch MacBook Pro with Retina display has 2560x1600 resolution) In advanced responsive web, it is impontant to be opend window's width. In an afore image, the window's widh is almost 2500px because  it is using almost full screen. In this picture, what can you see? There is a keyboard in the left side and a mobile phone and a tablet are in center. And a note is the right side. Also sentences such as 'Focus on design' and 'Amplify with code' is shown just below images.

As next action, I adjusted window width more narrower. The width is decreased to almost 1800px. What is different between before and after? First, the keybord and note in the edge are barely shown. And a gap between the mobile phone and the tablet is wider. Also the gap of sentences is narrower and some texts it was not shown is appeared because the image's height is decreased.

Let's reduce the width. This is almost 1300px. In now, the keyboard and note are not shown and a gap between the mobile phone and tablet is more narrow. There is a noteworthy phenomenon to the sentence according to 'Focus on design', which is disappered on the screen. It was possible since a layer's position was moved to below as narrower width.

I got a few more reduction of window's width as almost 800px. At now, you can see the decreased image size and can check texts easily. And then, two images such as the mobile phone and tablet are overlap.

I reduced the width again and it was almost 600px. At present, the tablet is just shown on the image which is smaller than before. And texts above an image is shown not.  There is a unique penomenon and it was changed to slope of  the tablet. It was slope of 15 degree but now, it looks straight.        

Through 5 captured images above shown, you can see the change of  the image and text as reducing the window's width.

It is possible to be considered to generate best design according to widow's width of users by a publisher.

Summary

Although I don't analyze a code of this web, I can guess how it is possible.
In the first capture, you can an image including the keyboard, mobile phone, tablet and note. The keyboard and note in the edge is background image. And mobile phone and tablet are each image. Through comparison the first capture and second capture, I can guess there is a border between 2500px and 1800px because of  suddenly changing a gap between the mobile phone and tablet. 
And there is a border between 1800px and 1300px. It can be checked from changing arrangement of sentences which was in two column. Two images such as the mobile phone and tablet are designed to go near with each other and the tablet gets order of priority. It can be confirmed at an image in almost 800px. There is an additional border between 800px and 600px. The only tablet is shown and it’s slope is changed. At this time, it looks same image comparing before and it change its degree at 600px.

By this time, we have looked into a responsive web design with an example of the site ‘google web designer’. Although It can be felt hard, you can use this solution easily because so many enterprise give free responsive templets.

<Connect to orignal page(korean)>

[출처] 반응형 웹디자인? - 구글웹디자이너 페이지를 통해 알아보자.|작성자 gungs

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A Special Day with a Movie 'Jobs'

A. Dec.25. 2013 Xmas

Last X-mas was very special for me because my wife visited her parents with our kids. I was left alone and it was my first time to rest freely for this year. I decided to watch a movie because I had never done it since I had kids. I also prepared special dinner for myself on that special day.

I didn't need to consider what movie I should watch because I knew from the start that I wanted to see 'Jobs'. It was also my first time to watch a movie through IPTV. I don’t usually purchase TV programs on virtual channel because it’s burdensome and expensive. It costs 4,000 won which is much more expensive than Starbucks’ coffee. Anyways, with a little hesitation I decided to buy programs on that day and I was so relieved and thankful because I got a free coupon. I wondered why I was not informed of this earlier.

 B. About the movie 'Jobs'

  Although I really wanted to watch the movie ‘Jobs’ when it was first released, I couldn't because of my kids and job. After reading so many negative reviews about it on the Internet, I decided to watch it anyway. I don’t recommend this movie to those who don’t know Steve Jobs. In the movie, so many events passed in a flash which makes the story improbable. Also, it doesn’t show about iPhone and iPad. I was expecting to see how these gadgets change the world in the movie but it’s only about the process to maturity.  I didn’t have fun watching the movie. In fact, I often checked my smart phone while the movie was playing. In spite of that, I have liked Steve Jobs’ quotes and respected his passion. In the movie, he repetitively said that faith could motivate coworkers and change the world. On the other hand, it’s a bit ironic when those who opposed him saw him as poor, childish and obstinate when he repetitively insisted his philosophy on others.

C. Narration from the movie

In the movie, when a conflict is finally resolved, the passage below is narrated by Steve as Mike Maclulais seen walking out.

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When you grow up, you tend to get told the world is the way that it is,your life is just to live your life inside the world and try not to bash into the walls too much.But that’s a very limited life. 
Life can be much broader, once you discover one simple fact. And that is that everything around you that you call life was made up by people that are no smarter than you. And you can change it. You can influence it. You can build your own things, that other people can use.  It’s to shake off this erroneous notion that life is just there, and you are just gonna live in it, versus embrace it. 
Change it. Improve it. Make your mark upon it. And once you learn that, you’ll never be the same again. 

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While listening I heard him said, 'You can change it'. Upon hearing it, I knew it was very important so I repeated the scene to jot down his narration. Fortunately, IPTV's rewind function made me it possible. However, I had a hard time jotting down accurately because I could not understand well his pronunciation and accent. Google is really great because when I typed “when you grow up” in a search bar, I got many hits. I also found out that this quote was said by him in 1995, while he was still at Next Computer. He might be considering about returning to Apple during this period.

D. After watching 'Jobs' 

What makes me jot down the quote and write this article? It touched my heart and made me remember my past and my indefinite dreams. When I entered a university, I wanted to become like Bill Gates even though I didn't know him well. I just knew that he became famous because of his huge money and dramatic success. It really fascinated me. When I joined a company, I really wanted to become like Steve Jobs. After I watched and listened to the video clip of his speech in Stanford, I became addicted to his quotes. I really want to move others just like him. I believe that his speech is powerful enough to touch others’ hearts and give hope to people who are eager to change

E. Bottom Line

I’m always eager to write my story on the blog. I thought it was really hard at first. My present bears no resemblance to the past of Steve Jobs. I was inspired when he said, “You can change it.” Thanks to this quote, I want to dream again.  

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