High-temperature polysilicon technology Character LCD Modules

Tsingtek Low temperature lcd display polysilicon technology and high-temperature polysilicon is a corresponding (High Temperature Poly-Silicon, referred HTPS) concept we have previously mentioned , the use of high-temperature polysilicon quartz glass as the substrate low temperature lcd display , and the high purity quartz glass are very expensive, and very difficult to achieve a larger size , which determines the temperature polysilicon technology can not as a display of the computer. However, large-screen HDTV lcd graphic display modules Projection TV (Large-screen projection TV) in areas such as high-temperature polysilicon technology found in commercial / home front projector (Front projectors), his own position , especially in the three-piece LCD projection system, high temperature polysilicon technology in the field of global market share as high as 55 %.

Low-temperature polysilicon Character LCD Modules rising star

As early as 1999, the low-temperature polysilicon Tsingtek low temperature lcd display has been around , so it is far from what the new technology . However, due to various reasons, the slow development of low-temperature polysilicon technology , and even stay long in words, until the recent breakthrough in the field appears to be outside again before starting to pay attention . Low-temperature polysilicon stands for "Low Temperature Poly-Silicon (LTPS, polysilicon is also known as the p-Si, the same below ) ," which is a branch of polysilicon technology. On the lcd graphic display modules monitor , the adoption of polysilicon liquid crystal material has many advantages , such as thin-film circuits can be made thinner and smaller , lower power consumption and so on , we will focus on the following . However, in the early development of polysilicon technology , in order to transition from the amorphous glass substrate structure (a-Si) is a polycrystalline structure, it must use a laser annealing (Laser Anneal) high-temperature oxidation step , when the temperature exceeds the glass substrate graphic lcd display module . Known, ordinary glass softens at this high temperature melting , can not work properly , and only the silica glass to be able to withstand such high temperature processing . The quartz glass is not only expensive and sizes are smaller , not as a display panel makers naturally chose the cheap amorphous material (a-Si), which is the situation we see today. However, the industry has not given up efforts to develop low-temperature polysilicon technology become the consensus , after years of effort, low-temperature polysilicon finally step into reality. Compared with the conventional high temperature polysilicon , low temperature polysilicon although laser irradiation step needs , but it is used as a heat source is an excimer laser , the laser transmission through the system will produce a uniform distribution of the laser beam energy in the amorphous structure and projected on a glass substrate when the glass substrate is an amorphous silicon structure of the energy absorption of the excimer laser , the structure will be transformed into polycrystalline silicon . Since the entire process is completed in less 500-600 ° C , conventional glass substrate can withstand , which greatly reduces the manufacturing cost , the polysilicon LCD technology into the display area also feasible .

Character LCD Modules defect and technology breakthrough

Due to limitations inherent principle , LCD display quality in terms of color CRT is still difficult with the same par . We know that Tsingtek the graphic lcd display module  panel itself is unable to achieve self- luminous, but it can play a role in blocking the light , in order to achieve a complete display, a backlight assembly must be designed for it (Backlight) - backlight emits light, after the reflection plate , light guide plate , an optical diffusion sheet , a prism sheet and other auxiliary member is irradiated to the liquid crystal panel , a liquid crystal panel of the electrical drive signal at a precise determined luminous -off of each pixel region , and the color filter role in the formation under different shading , different colors of light output - in the user point of view, is shown on the LCD screen, the established color screen. Such works exist many drawbacks : First , relying on the filter in order to achieve color output , and because the driver IC restrictions , early color lcd display module for each channel can be achieved only 6bit color combinations , RGB three color channels add up to 18 display can show only the total number of 262,144 kinds of colors , which is 24-bit true color has a long distance. Because not show enough color , graphic lcd display module is difficult to achieve a satisfactory level ; secondly , LCD backlight to be able to help the formation of light output , and quality characteristics of the backlight of the Serial Lcd Display Module quality , use of life expectancy and other indicators have a significant impact . Widely popular backlight type CCFL cold cathode fluorescent lamp, it has a low cost , mature technology , etc., both the performance and stability are proven , but the cold cathode fluorescent tube light sources are light emitted want to spread evenly each region of the panel requires relatively complex support assembly more difficult to control the thickness of the screen . And CCFL backlit color display in terms of mediocre , life is also more general ; once again , the energy efficiency of the backlight low. In the light from the backlight to transfer the screen , the light energy loss is very serious , and ultimately only about 6% of energy use may be true , the energy efficiency is quite low. In order to achieve higher brightness and contrast , manufacturers must increase the output power of the light source lamp or increasing the number of adverse consequences is the machine power up. This has much influence on the desktop LCD monitor or LCD TV will not, but a great influence on the laptop LCD screen . LCD is the highest -power laptop components , in order to maximize battery life , the industry actively develop low-power LCD screen , while the energy efficiency of the backlight is clearly contrary thereto .

Character LCD Modules liquid crystal display technology analysis of recent progress

In just a few years time , LCD rapidly replacing CRT, become occupy the mainstream display technology. The prices are civilians , while the Tsingtek color lcd display module quality is also getting better and better . Initially, the viewing angle is small, long response time graphic lcd display module is considered the most serious flaw in the joint efforts of the major panel makers , have successfully developed a new generation of Serial Lcd Display Module panels , and quickly mass production in a very short time. Achieve universal access to a new generation of panel viewing angle of 160 degrees or more , and some more excellent technology can achieve 170 -degree viewing angle , so almost the same level as CRT , LCD narrow perspective of a certain defect changed . Secondly , the new panels generally have less than 16 ms response time , many products even down to the level of 8 ms , and only when the response time exceeds 25 milliseconds , the human eye can clearly feel the image delay , a new generation of 3D LCD fully meet game application requirements. And to solve these two problems for the popularity of low temperature lcd display and lay a shot in the arm , coupled with increasingly lower cost , only 15 inches LCD monitor specifications realized price of civilians , even the 17-inch products fall into the 2,000 yuan , the mainstream replace CRT is a natural thing , and this is what we see today in the market situation . Although perspective and response time has been greatly improved , the quality of the LCD display to get some improvement , but the pace of the LCD has not stalled , the industry 's technological improvements will focus on the following areas: improved image contrast , allow it to be exhibit a richer sense of hierarchy ; further improve the color performance of the LCD , so that it can be close to or even reach the level of the CRT ; continue to reduce the power consumption of the display , to enable more energy efficient and meet the needs of mobile applications ; the life of existing as the basis to further improve ; expand into new application areas, reform the manufacturing process , improve yields and achieve further reduce manufacturing costs.

Character LCD Modules defect and technology breakthrough

Due to limitations inherent principle , low temperature lcd display quality in terms of color CRT is still difficult with the same par . We know that the lcd graphic display modules panel itself is unable to achieve self- luminous, but it can play a role in blocking the light , in order to achieve a complete display, a backlight assembly must be designed for it (Backlight) - backlight emits light, after the reflection plate , light guide plate , an optical diffusion sheet , a prism sheet and other auxiliary member is irradiated to the liquid crystal panel , a liquid crystal panel of the electrical drive signal at a precise determined luminous -off of each pixel region , and the color filter role in the formation under different shading , different colors of light output - in the user point of view, is shown on the low temperature lcd display screen, the established color screen. Such works exist many drawbacks : First , relying on the filter in order to achieve color output , and because the driver IC restrictions , early LCD display for each channel can be achieved only 6bit color combinations , RGB three color channels add up to 18 display can show only the total number of 262,144 kinds of colors , which is 24-bit true color has a long distance. Because not show enough color , LCD color display is difficult to achieve a satisfactory level ; secondly , LCD backlight to be able to help the formation of light output , and quality characteristics of the backlight of the low temperature lcd display monitor display quality , use of life expectancy and other indicators have a significant impact . Widely popular backlight type CCFL cold cathode fluorescent lamp, it has a low cost , mature technology , etc., both the performance and stability are proven , but the cold cathode fluorescent tube light sources are light emitted want to spread evenly each region of the panel requires relatively complex support assembly more difficult to control the thickness of the screen . And CCFL backlit color display in terms of mediocre , life is also more general ; once again , the energy efficiency of the backlight low. In the light from the backlight to transfer the screen , the light energy loss is very serious , and ultimately only about 6% of energy use may be true , the energy efficiency is quite low. In order to achieve higher brightness and contrast , manufacturers must increase the output power of the light source lamp or increasing the number of adverse consequences is the machine power up. This has much influence on the desktop LCD monitor or LCD TV will not, but a great influence on the laptop LCD screen . LCD is the highest -power laptop components , in order to maximize battery life , the industry actively develop low-power LCD screen , while the energy efficiency of the backlight is clearly contrary thereto .

Character LCD Modules liquid crystal display technology analysis of recent progress

In just a few years time , accory color lcd display module rapidly replacing CRT, become occupy the mainstream display technology. The prices are civilians , while the LCD display quality is also getting better and better . Initially, the viewing angle is small, long response time LCD is considered the most serious flaw in the joint efforts of the major panel makers , have successfully developed a new generation of graphic lcd display module panels , and quickly mass production in a very short time. Achieve universal access to a new generation of panel viewing angle of 160 degrees or more , and some more excellent technology can achieve 170 -degree viewing angle , so almost the same level as CRT , LCD narrow perspective of a certain defect changed . Secondly , the new panels generally have less than 16 ms response time , many products even down to the level of 8 ms , and only when the response time exceeds 25 milliseconds , the human eye can clearly feel the image delay , a new generation of 3D Serial Lcd Display Module fully meet game application requirements. And to solve these two problems for the popularity of LCD and lay a shot in the arm , coupled with increasingly lower cost , only 15 inches LCD monitor specifications realized price of civilians , even the 17-inch products fall into the 2,000 yuan , the mainstream replace CRT is a natural thing , and this is what we see today in the market situation . Although perspective and response time has been greatly improved , the quality of the LCD display to get some improvement , but the pace of the LCD has not stalled , the industry 's technological improvements will focus on the following areas: improved image contrast , allow it to be exhibit a richer sense of hierarchy ; further improve the color performance of the LCD , so that it can be close to or even reach the level of the CRT ; continue to reduce the power consumption of the display , to enable more energy efficient and meet the needs of mobile applications ; the life of existing as the basis to further improve ; expand into new application areas, reform the manufacturing process , improve yields and achieve further reduce manufacturing costs.

An automotive radar Character LCD Modules enclosures innovative design

In radar systems, electronic cabinets and Tsingtek Serial Lcd Display Module and control 

units occupy an important position , and its design is good 

or bad will not only affect the specific fast and reliable 

operation . Also gives intuitive visual experience , or even 

directly affect the market competitiveness of the products. 

Therefore, graphic lcd display module should be given adequate attention. An 

electronic cabinet design industrial design as a new product 

design methodology is the advanced science and technology

Character LCD Modules display technology of wide temperature range

From the technical requirements of wide temperature starting , recalled rugged COTS Tsingtek graphic lcd display module monitor status and major issues facing reinforcement technology , and discusses the implementation ruggedized color lcd display module, combined with RLCD15 given using ITO glass reinforced heating wide temperature technologies to design and implement an LCD display.

Lightweight Character LCD Modules monitor reinforcement technology

Discusses the lightweight Tsingtek color lcd display module monitor reinforcement design

goals , design ideas, made ​​a lot of related design

calculations and analysis in liquid crystal displays thermal

design , isolation buffer design , electromagnetic Serial Lcd Display Module                                 

compatibility design, "three" and other aspects of the design

. The design process using three-dimensional simulation and

graphic lcd display module , pre- estimate of the weight of the entire device

is more accurate ; using dynamic finite element analysis

software just checking the strength of the various parts ,

and additionally reinforced by a large number of engineering

experience in the liquid crystal display materials , process

and plated coating the choice for a detailed demonstration,

has good maneuverability.

Our introduction of new equipment to enhance the quality backlight TFT Display Module

Our introduction of new equipment to enhance the quality low temperature lcd display.Prior to this, most of the Division I and backlight manufacturers , are printed using a silk screen backlight outlets way to produce Tsingtek lcd graphic display modules , however, often have customers reflect uneven backlight brightness , brightness dim , based on this , the company leadership decided introduction of new equipment to improve the backlight problem. December 2013 , the company invested more than 300 million yuan to introduce 10 sets of laser engraving machine, using laser engraving outlets backlight with graphic lcd display module , brightness uniformity, no dark areas , not aging long life, environmental protection and other advantages. The introduction of the device greatly improves the backlight production processing efficiency and quality for our company manufacture backlight provides favorable conditions , greatly enhance the quality of the backlight.

The relations between and among the Character LCD Modules , LED, OLED

LCD is composed of a liquid crystal liquid crystal display, and LED is composed of light emitting diode display. 

LED display compared with LCD, color LCD display in brightness, power consumption, the visual Angle and the refresh rate, etc., are an advantage. 

But using LED back light screen in color saturation is not enough, in part of the screen color display when you least expect them to 

Slight deviation, especially in the touchpanel LCD module screen folding place color deviation is more apparent. 

OLED display technology and the traditional LCD display in a different way, no need backlight, with very thin organic materials coating and glass substrates, when a current through the organic material will glow 

Character LCD Modules screen working principle and characteristics

LCD screen working principle is to use the physical properties of liquid crystal, when the electric conduction, make character OLED arrangement orderly, make the light easy through; 

Without power, becomes chaos, prevent light through. The following about the characteristics of the LCD screen for you: 

Now very common. It has small volume, light weight, save electricity, low radiation, easy to carry, etc. The principle of liquid crystal display (LCD) 

Very different from a cathode ray tube (CRT) monitor. lcd character display device is based on liquid crystal electro-optic effect. The way of display characters display device including; 

Matrix display of characters, graphics, image display device; Matrix display of large screen LCD LCD projection TV, etc. 

Character LCD Modules dot defect analysis and research

LCD panel in the manufacturing process, which can be roughly divided into three stages: array (array), into the box (cel1), the module (module). Although most of LCD panel manufacturing process 

Is done in the high cleanliness of the clean room, but still inevitably on the custom LCD display will appear some defects. There are many reasons that cause these defects, in all of its manufacturing 

A link has defects. In a box of phase formation of the pinhole defect and black dot defect is two more common point defects. 

When perfusion liquid crystal box if vacuum bubble, namely the pinhole defects; If some particles in perfusion liquid crystal before the supers group (particle cluster), either 

When pouring the serial LCDs crystal box were mixed with some particles, which cause the black point defects. 

Point defects at the core of the will of the surrounding have anchoring effect of the liquid crystal molecules, so will inevitably shadow Ⅱ to the liquid crystal molecules are arranged in certain ranges. Based on two typical point defects 

Core research, found that the different defects affect the ability of the liquid crystal molecules are arranged around there are significantly different, and through the extrapolation length theory and elastic long-range correlation theory into the phenomenon of the experiment 

Line of argument. 

2014 ultra-small size mobile phone shipments flat Character LCD Modules screen tablet

2014 ultra-small size mobile phone shipments flat Touch screen LCD tablet 12864

In the past been considered ridiculous tablet phone , and now because of the success of the Samsung Galaxy Note series , and thus promote the 5-inch screen size of smart phone market, especially showed significant sales growth in Asia, Europe and Brazil and other markets. Taiwan media reported on December 23 , correlation analysis, flat mobile phone sales are expected to exceed the small size of the plate in 2014 , to reach 17.5 million units. Analysis pointed out that the global mobile phone sales are expected to grow flat to 17.5 million units in 2014 , will be less than 8 inches tablet approximately 16.5 million small number of units , indicating the global market demand for large-size mobile phones showed positive growth , particularly in Asia , markets such as Europe and Brazil have significant market demand, but this year has gradually led five inches above aircraft sales.

  Mobile phone market has been flat over the past considered a joke look at, but in the mobile Internet , social applications , online shopping and games using behavior change ,LCD Manufacturer market is also increasing demand for large-size phones . And after Samsung launched its first Galaxy Note has achieved success based on the market now includes LG, Sony Mobile, Huawei , HTC, Nokia has launched tablet phones etc , and even mainstream flagship models were also introduced more than 5 inches screen size . The 3.5-inch screen in the past and always adhere to the design of the Apple iPhone, iPhone 5 , first to 4 inches in screen size , is also rumored to be in the new iPhone 6 design with larger screen sizes .

2014 LCD screen TFT Display Module various embodiments of the industry tariff adjustment

Treasury website today reported 2014 320240 Character LCD module industry tariff embodiments wherein the display area to do a new import tariff adjustments .

 For the " color TV components (plasma components and parts , except for the organic light emitting diode display ) " and " organic light emitting diode display screen color television ," executive five percent of imported goods provisional tax and MFN rate of 15% .

For "LCD CCFL Backlight " and " Color of the projector light source " to perform three percent of imported goods provisional tax , and such goods MFN rate is 8 %.

For the " TV tube parts " Performing the 3% of imported goods provisional tax , while the MFN rate is 6% of such goods .

For the " other parts of cathode ray tube " Performing a 4% imported goods provisional tax , and such goods MFN rate is 8 %.

For the " optics display LCD module backlight module ( includes a light reflector plate , diffusion film , brightness enhancement film ) " Performing two percent of imported goods provisional tax , and such goods MFN rate is 8 %.

For " LCD projector with polarizing element " and " digital cinema projectors with polarizing element " Performing 6% of imported goods provisional tax , and such goods MFN rate is 8 %.

For "LCD or organic light-emitting diode (OLED) screen with the original glass plate , including protection screen with alkali glass" to perform the 3% of imported goods provisional tax , and such goods MFN rate is 17.5 %.

For the " optical flat glass , the thickness of 0.7 mm or less ," the implementation of 9% of imported goods provisional tax , and such goods MFN rate is 17.5 %.

For "LCD or organic light-emitting diode (OLED) screen with the original glass plate , including protection screen with alkali glass" to perform the 3% of imported goods provisional tax , while the MFN rate of 15% of such goods .

For " LCD graphic display glass substrates , 6th generation (1850mm * 1500mm) above , excluding six generations " execute four percent of imported goods provisional tax , while the MFN rate of 15% of such goods .

For " LCD glass substrates , 6th generation (1850mm * 1500mm) and the following " Run 6 percent of imported goods provisional tax , while the MFN rate of 15% of such goods .

The program clear , 2014 will " color TV parts (plasma components and parts , except for the organic light emitting diode display ) " executed six percent of imported goods provisional tax , while the MFN rate of such goods is 15%.

Tablet PC Character LCD Modules panel shipments remained high BOE win

Tablet PC LCD panel shipments remained high BOE win

According to NPD DisplaySearch latest monthly tablet computer shipments and value chain reports Monthly Tablet PC Shipment & Value Chain Report noted that in September 2013 Tablet PC panel shipments to 28 million tablets, unchanged from last month . But already the second month in a single month record high 28.0 million tablets shipped . serial LCDs DisplaySearch analysis, September 2013 Tablet PC panel shipments were flat for the following reasons : Some computer brand plans to launch new models in the upcoming tablet computer Thanksgiving and Christmas sales season . They do this with mass production in August, September, flat panel and assembled in October through graphic LCD, to prepare for November and December market. So consumers will see many new products in the next marketing season , when choosing gifts for family and myself have more choices.

 Apple's new iPad Air 9.7 inch panels from small shipments began in August , September, October substantial growth while continuing to increase. However , due to the iPad Air panel yield less than iPad 4, while labor shortages in mainland China after the National Day , so the iPad Air panel shipments in September is still less than the iPad 4. In addition, part of the 7.9 -inch mono LCD display 2 panel , to the end of September , only South Korean panel makers will be 7.9 '' retina panel on the market, but shipments of less than 100 million units in September , October is expected to be increased . Because yield issues remain unresolved , the Japanese panel makers still can not successfully be 7.9 inches retina panel volume production.

  Thus , Apple is likely to make another Korean panel makers have begun to supply. Although this situation is not expected to happen this year , that the Japanese panel makers should be smoothly 7.9 "iPad Mini 2 retina panel into volume production in the fourth quarter .

  Whitebox tablet PC panel shipments continue to rise , mainly because of the panel and system manufacturers to provide low-cost chip prompted a large number of mature local dealer to buy a lot for the end of the sales season and prepare for the Chinese New Year . These low-cost tablet computer often as a gift , or corporate incentives and so on.