Speaking of the screen, I believe that many people think of Samsung first. After all, Samsung's global leading position in the semiconductor industry is there, and it is difficult for any enterprise to shake it in the short term. However, the indomitable spirit of China enterprises is expected to break the Korean monopoly in the near future. One enterprise's high-end screen is rising, and it is BOE.
I believe many people are familiar with BOE's screen. After all, there is a domestic mobile phone manufacturer willing to carry the company's screen on high-end models. This company is Huawei. In the past, Huawei successively adopted BOE's organic light-emitting diode displays on P30 series and P40 series models, and also chose BOE as the supplier of folding screen devices such as Mate X and Mate Xs.
In fact, Huawei's choice of BOE can be described as painstaking. Because Huawei's mobile phone has fundamentally affected Samsung's global position, Samsung is reluctant to provide Huawei with more advanced display screens, such as digging screens and folding screens. This technology can only be dominated by domestic manufacturers, and BOE happens to own this technology, so the two sides reached a cooperation.
However, little is known about the difficult history of BOE in the past. Has been exploring in the field of screen. Founded in 1993, it was born in the era when the screen field in China was blank. At that time, domestic LCD screens needed to be imported from overseas. According to public information, from 2005 to 20 15, China's expenditure on imported display screens reached US$ 457 billion, reaching more than RMB 3,245 billion.
In order to break the monopoly of overseas markets in this field, BOE has been devoted to the research of LCD panels belonging to China since its establishment. Due to the ignorance of technology, BOE took many detours in this process, and even spared no expense to acquire South Korea's HYDIS Company, investing 654.38+065.438+0 billion to build the fifth generation line.
Before the company's performance, BOE invested heavily and soon got into trouble. At its worst, it lost 3.3 billion a year. Fortunately, with the long-term support of the state, from 1998 to 20 12, the state has invested more than 300 billion yuan in BOE in various ways.
14 years, the state invested heavily in BOE, with little effect. Wang Dongsheng, the founder, was once ridiculed as a "national neet", but after years of persistence, the final result of BOE did not disappoint. Now BOE's display screen has been attacked. Not only Huawei's models are in use, but even Apple is tempted.
It has been confirmed by many parties that Apple will release four iPhones12 this year, and all of them will switch to OLED screens. The reason why such a large quantity can be guaranteed is that Apple introduced screens from JD.COM and LG. Foreign media reported that Apple's upcoming new iPhone will all adopt flexible OLED displays from Samsung, JD.COM and LG.
Specifically, Apple will only use the display screens from JD.COM and LG on the 6. 1 inch iPhone 12 Max with the resolution of 2532x1170,460ppi, but obviously this is the main model of iPhone 12. Thanks to the price and product performance, it should become a very popular explosion.
However, there is no official news to confirm the authenticity of this rumor. According to the plan, the production of component panels for iPhone will start at the end of July this year, when everything will be announced. If BOE really won Apple's big order this year, it must be said that this is the progress of domestic display screens. BOE, which has persisted in technology for many years, has finally gained a firm foothold in the international market this time!
It's mid-May, 2020, and I believe all the fruit powders that have been paying attention to Minmei Infinity should know something about it. Recently, we have a general understanding of the specifications and prices of the iPhone 12 series this fall. One of them is that all four iPhones will use OLED screens. IPhone 12 Pro series uses Samsung to display OLED screen, but IPhone 12 and iPhone 12 Max are equipped with OLED screen models for the first time. These two models use domestic BOE screens. It seems that some people are not optimistic about the screen launched by this manufacturer. Will it cause serious disasters again?
BOE is a leading panel manufacturer in China, but recently it was reported that it successfully entered the organic light-emitting diode screen supply chain system of Apple (iPhone 12 and iPhone 12 Max) and Samsung's new machines (Galaxy S and Galaxy A series), and even Huawei's flagship mobile phone P30Pro also used BOE AMOLED screen.
According to the statistics of research company DSCC, BOE is the world's largest supplier of LCD panels and the third largest supplier of organic light-emitting diodes for mobile phones after LG. It can be known that this manufacturer has a certain share.
Apple will suddenly change from BOE to a new generation of iPhone screen suppliers. It is said that in order to reduce the cost of the new iPhone, Apple can also reduce its dependence on Samsung's organic light-emitting diode screen supply and push the price of mobile phones up to 600 to 700 dollars. This year, the price of the new machine can be lower than that of iPhone 1 1, and the price will come to 649 US dollars (about 5,666 yuan).
This is not the single source that the new iPhone 12 will use BOE screen. As early as in the past, ETNEWS media reported that BOE had planned to build a new module production line for Sichuan B 1 1 Factory Organic Light-emitting Diode Factory, which could directly connect the display panel to the smart phone. At present, BOE has continued to participate in the development project of iPhone organic light-emitting diodes.
At present, among the three major panel manufacturers in the world, BOE will also share a piece of cake in the field of organic light-emitting diodes, which will bring great pressure to Samsung.
Differences in screen technology between BOE and China
However, BOE's screen technology still can't catch up with Samsung and LG. What's the difference?
At present, BOE's AMOLED screen technology can't catch up with Samsung, but this manufacturer is still growing, but the gap between the two companies is still very big, mainly because BOE doesn't have more patented organic light-emitting diode technology than Samsung, and it also needs machine tools and machines to produce screen lines, and the key machine technology is also stuck, resulting in a relatively slow layout of the production line.
At present, BOE * * * has four six-generation flexible AMOLED production lines, but it still can't catch up with Samsung in screen yield, so Samsung's OLED screen is still one of the suppliers of important models, but recently there are a lot of news that Apple is looking for BOE as an OLED screen supplier, so BOE is likely to make a major breakthrough in technology, at least there is not much problem in the shipment of OLED screens.
The light-emitting principle of organic light-emitting diodes (OLEDs) is similar to that of traditional light-emitting diodes. It has the characteristics of self-luminescence, no need for backlight module and color filter, light and short, delicate and sensitive, bright color and power saving. Compared with LCD screen, it has high contrast, fast response, light weight and HDR effect.
Simply put, the LCD screen is like watching a shadow play, and the light source is that the actors are watching the play with a film behind the scenes. If we show the OLED directly to the audience, we can see it directly with our own eyes.
At present, many mobile phone manufacturers have completely replaced LCD screens with OLEDs, but before that, the cost of OLED screens began to surface. In order to solve these problems, some screen manufacturers use another "RGB Pentile" arrangement to reduce costs, in which the key point is the "* * * sub-pixel" between adjacent pixels.
About RGB PenTile
PenTile was invented by Clairvoyance Company in Silicon Valley, San Francisco, USA. It can break through the limitation of RGB, add extra white, and turn the four colors of RGBW into independent pixels, so that the light of each color can operate independently.
At present, some organic light-emitting diode mobile phones also adopt RGB one-fifth white column mode, but this is different from the RGB sub-pixel arrangement of traditional organic light-emitting diodes. In the standard RGB arrangement, each pixel consists of three sub-pixels, namely red, green and blue. However, a single pixel in PenTile has only two sub-pixels: red, green, cargo, blue and green, and the number of sub-pixels in PenTile is also reduced by 1/3.
However, the arrangement of PenTile structure brings power saving, and each pixel can also be matched with adjacent pixels, which is not limited by RGB. Although the number of color bars is reduced, PenTile can enlarge the area of each color bar of RGBW, improve the transparency of pixels, maintain the original brightness, and reduce the power consumption by half compared with the screen.
Therefore, the resolution is improved, the details will be clearer, and the cost can be reduced, which also makes Samsung finally choose PenTile.
Mainly Samsung used the standard RGB arrangement for the OLED screen on Note2, but it was easy to be branded in the end, and then different arrangements began to appear to improve it. The Samsung OLED screen used by iPhone X adopts the pixel arrangement of Samsung diamond PenTile, and Apple named this screen Super Retina Display.
BOE· organic light-emitting diode screen
As for the OLED screens used in BOE, most of them adopt Zhou Dongyu arrangement, that is, the pixel arrangement of 1 zhong2, which is characterized by dividing the green sub-pixel into two. At present, the screens of Huawei Mate20Pro and P30Pro both adopt BOE organic light emitting diode Zhou Dongyu arrangement, so why is it called "Zhou Dongyu"? Mainly sub-pixel arrangement is similar to Zhou Dongyu's staring duck expression.
BOE should also avoid Samsung's own patent of RGBG diamond pentagon layout, especially using RGBG delta sub-pixel arrangement on its own OLED screen, which can also be called triangular pentagon. In fact, both companies adopt the arrangement of Zhou Dongyu.
Pentile array and its variant RGGB- Delta array both choose blue sub-pixel scheme for adjacent pixels. Compared with the standard RGB array, RGGB- Delta array is only about 77% of the standard RGB array, while Samsung Diamond array is 80%.
However, the actual resolution of Zhou Dongyu arrangement in some directions will be reduced, which will lead to the problems of insufficient screen fineness, color cast at the edge of the display content and so on. Of course, it also has the advantages of long service life and strong anti-aliasing ability.
Huawei mobile phone broke out BOE organic light-emitting diode screen.
I have been paying attention to the problem of BOE organic light-emitting diode screen, which comes from the halo problem of green tone on the edge of Huawei Mate 20 Pro screen (referred to as Mate 20 Pro green screen door). The main reason is that most Huawei screens use LG, followed by BOE. The more serious problem is LG screen, but BOE BOE will also have the problem of red screen.
Why is this happening? Huawei further explained that the flexible organic light-emitting diode screen is used, and the organic light-emitting diode pixels have unique light-emitting characteristics, so the green screen will not be displayed under high brightness, and this problem will occur under low brightness. It is also mainly because the curved screen is designed on the side of the screen, and then the plastic film is extruded together, and the plastic is bent and shaped, resulting in the original display of white, which will appear green or red under different light and viewing angles, which has little influence on the use (super domineering attitude).
So the LG screen will not be better. Some Mate 20 Pro users said that there are still obvious differences in color performance between LG screen and BOE screen, and it can be found that BOE is more vivid than LG screen.
Will there be a disaster when using BOE screen for iPhone 12?
If the real iPhone will use BOE OLED screen, it is likely to introduce the latest self-developed diamond arrangement, which can make the display effect close to Samsung's original diamond arrangement, probably because this screen makes JD.COM cooperate with Apple for the first time.
However, don't think that Huawei Mate30 Pro uses BOE screen, and the display effect will be better than iPhone. However, this is not the case. Some netizens tested the screenshots of Mate 30 Pro and iPhone 1 1 Pro Max. It is found that iPhone 1 1 Pro Max is better than Mate30 Pro in screen details. At the same time, Huawei still can't solve the green problem of curved screen on Mate30 Pro. This pot is all backed by BOE.
As for iPhone 12 using BOE screen, you don't have to worry too much about the green light. After all, the iPhone has not yet adopted a curved surface design, and even Apple will further adjust the software and hardware for each iPhone to correct the screen to the best state. After all, Apple doesn't want any disaster to happen to the new iPhone.
Just as you see the OEM on Samsung mobile phones, iPhone X will definitely be branded after its release. At that time, almost everyone was brainwashed, and organic light-emitting diodes and branding were directly on the same line. Finally, some foreign users have found that the iPhone is less prone to OEM problems than Samsung phones, unless it stays on the same screen for a few hours, and iPhone X has not been branded by ordinary users so far, so don't jump to conclusions.
Then, if you have anything to say about Apple's iPhone 12 using BOE screen, please leave a message in the comment area to let Minmei participate in the discussion!
Speaking of screens, most mobile phones use the screens of Sharp, AUO, Samsung and Tianma. Among them, the best-selling and best-used screens are still produced by Samsung, followed by Sharp and AUO.
In fact, in addition to Samsung and other screens, BOE is also developing OLED screens. As early as the exhibition week, BOE launched two OLED screens, which adopt COP packaging technology and have narrow borders on all sides.
The year before last, BOE successfully developed a flexible screen. It is undeniable that BOE has a good development prospect, but which display effect is better, BOE screen or Samsung screen? This stage is undoubtedly Samsung's screen. Although BOE's screen price is low enough, the brightness of 390nit is still not as good as Samsung's screen. At present, some netizens complain that BOE's OLED screen will turn white and glare after long-term use.
BOE OLED screen has a good performance in color saturation, but it still can't be mass-produced. At present, most mobile phone manufacturers use Samsung's AMOLED screen. If BOE solves some criticisms on the screen, its display effect may be as good as Samsung's screen.
I don't know if BOE is good, LG's green screen
The P40 PRO arranged by Zhou Dongyu has been used for more than a month, and it is really good.