2013年10月29日星期二

Seven strokes teach you to love TV

Nowadays, LCD TV has become people's lives than the essential part , but also the highest of the highest frequency of use , and then how to care for the life of the " big plaything " may become the subject of great concern , the following let together we look at it, whether you are in life to cherish your TV like it !

1 do not readily "off" TV

Let us not waste energy, but to pay attention to weigh the power is turned on the TV Life. As we all know , the backlight for the LCD TV consumes all accessories in life the most serious one part , it and our home use fluorescent tubes are very similar .

So, it 's life and times also ignite a great relationship . Start when the warm-up and high-voltage pulse sputtering cathode electron substance increases, shorten lamp life. If you develop a habit of readily turn off the TV , four times a day to open computing , lamp life will be reduced to the original 1 /2.

(2) Avoid prolonged work

This one is not with the above considerations conflict . In the case of ultra-long work , the heat in the LCD TV accumulating inside the body , which is not enough for the other electronic components as much of a threat , but it is possible to burn the liquid crystal panel , thereby forming a large area of ​​dead pixels .

3 professional way to clean

Due to static reasons, LCD TV screen surface is very easy to collect dust . But clean water is a very unwise way to clean. First, the general effect is clean , and easy to leave water marks . More importantly, the liquid crystal is very easy because of moisture and cause permanent

Persistent damage ( If water droplets penetrate the screen , avoid electricity, let moisture in a warm environment slowly evaporate.

4 Avoid scratches, twisted or hit the surface of the LCD screen

Useful for many people pointing fingers on the screen of habit, this is irrelevant for CRT TV , LCD TV, but may cause fatal damage , but see themselves and their children and their toys , any impact on the LCD screen , scribing will bring direct damage, and most likely to make entire screen scrapped.

5 . Still images can also damage the LCD screen

At present, many LCD TVs with digital photo browsing, but for a long time for a picture display may cause damage to the LCD screen . When the machine is not used in a long time , to avoid the machine displays a screen point , best to turn off the machine . Although the LCD TV calories than CRT TV has been reduced a lot, but the problem is more LCD TVs degree temperature sensitive , long- uniform screen will display the fragile components to aging , which may or may not burn the TV screen , but it may TV will be more dead pixels. Only bad point is always a white or black pixels, can not be repaired . OLED Display To address this problem, some products specially set up display a still picture for too long, the TV automatically dimming feature to protect the LCD screen

6 Water is a major killer of the LCD screen

LCD TV on the humidity is very clear sense of its more stringent requirements for air humidity , if the humidity is maintained at 30 % to 80 %, and the LCD is working properly , but if the indoor humidity is higher than 80% ( southern region ) , LCD TV internal condensation might have occurred, this condensation phenomenon, may lead to leakage and short circuit LCD TV phenomenon , but also serious and even burned TV .

7 Do not disassemble repair LCD TVs

You can not own repairs to CRT TV , lcd module TV mechanical sophistication , as well as the fragility of the core screen LCD TV on the demolition of unauthorized become a TV that has the potential to cause more harm behavior , even a small metal shavings shedding can cause serious consequences. Meanwhile, LCD TV backlight assembly of some components will be about 1000 volts with a high pressure, this pressure can also cause damage to the human body .

About Digital TV

● What is digital television receiving equipment ?

Digital television receiving equipment is capable of receiving and decoding digital television signals digital system terminal equipment referred to, also known as digital television receivers.Character LCD Modules Existing digital television receiving apparatus has a digital television receiver ( commonly known as set-top boxes ) and digital TV coordinator two kinds.

Digital television receiver apparatus can work as a standalone device , the digital television may not act as a coordinator of the device to work independently , must be used in conjunction with other devices .

● What is digital TV display device ?

Digital TV display device is a digital television video signal for displaying a digital television system terminal equipment referred to, also known as the digital TV display .

Indeed television display device is commonly known as the home of the TV. TV according to the display principle be divided into different types , the type of TV technology is now the mainstream with a cathode ray (CRT) tube televisions , liquid crystal (LCD) televisions , plasma (PDP) TV , an organic light emitting diode (OLED) TV machine and rear projection TV .

Wherein the cathode ray tube televisions and projection televisions are bulky type of TV , and Lcd display modules TV , plasma TV , an organic light-emitting diode TV is a smaller type of TV , also known as flat-panel televisions.

2013年10月27日星期日

Bright dead pixels LCD TV

Light / dead pixels is also known as an LCD screen bright spots , is a kind of physical damage to the LCD screen , the main part of the screen is bright spots due to internal reflection plate by external pressure or slightly deformed due to heat .

Each pixel on the LCD screen has a red, green , and blue primary colors, mix them together so that the pixel to produce various colors. A 15 -inch TFT Lcd Modules, for example , the LCD screen size 304.1mm × 228.1mm, a resolution of 1024 × 768, each liquid crystal pixel consists of RGB color units. Pour the liquid crystal liquid crystal pixel is formed under the fixed mold "LCD box" , such " crystal box" in the 15-inch liquid crystal display device number is 1024 × 768 × 3 = 235 20,000!

A " crystal box" size is how much ? We can simple calculation : High = 0.297mm, width = 0.297 / 3 = 0.099mm! That is, in the area of ​​304.1mm × 228.1mm arranged under the dense area of ​​only 2.35 million 0.297mm × 0.099mm size "LCD box" , but also in the liquid crystal cell also integrates a single driver behind the liquid crystal cell drive tube . Obviously, this production process on the production line requirements are very high , with current technology and processes, but also can not guarantee that each batch of production out of the LCD screen is not bright / dead pixels ,OLED Display manufacturers generally avoid bright / dead pixels to separate LCD panels put no bright / dead pixels or little bright / dead pixel LCD screen high-priced supply of the strength of the manufacturers , and those bright / dead pixel LCD screen is relatively large number of small manufacturers generally low-cost supply of low-cost liquid crystal display device.

What is the real rear projection TV

Rear (rearprojector) is defined relative to the traditional front projection (frontprojector) purposes . One kind of projection and reflection principle under the guise of the screen and projection system in one of the television imaging system .

In the projection display device, its projection into orthographic projection display (frontprojection) and back projection in two ways. The most direct application is the orthogonal projection projector , the light is projected onto the screen in front of imaging .OLED Display Module The rear projection The principle is simply the projector installed in the bottom of the fuselage , the signal after reflection , projected onto the translucent screen behind imaging .

According to its internal use projector types can be divided into CRT rear projection , DLP rear projection (digitallightprocessor digital light processor ), LCOS rear projection (liquidcrystalonsilicon silicon projection ) , LCD (LCD) projection and so on. As the projector and screen as one, rear-projection TV users do not need the system optical adjustment , lcd module making it easy to use and greatly exceeded the front projector.

2013年10月25日星期五

Know the LCD panel

Is known , the liquid crystal panel is a liquid crystal display is the most important part. In addition, it is also one of the highest cost component . Although monitor color effect is not only because the quality of the LCD panel and take decisive action . But its display can not be ignored as a key part of consumers on the LCD panel had a strong interest.TFT Lcd Modules Coupled with the current wide variety of LCD panel , the average consumer wants to understand after each choose to buy products is not easy.
Understanding of the display had a friend , and must know the LCD panel on the quality of their display on the monitor display and the display itself has a direct impact on the cost . And as a larger viewing angle , color and grayscale performance better panel , wide viewing angle panel has been a lot of high-end users goal. Wide viewing angle panel appears to solve a color screen for the visual senses and demanding consumer problems.
The current LCD display products, mainly divided into two categories lcm module . They are the traditional TN panel , wide viewing angle (IPS / MVA / PLS) panel . Wide viewing angle panel can be said is the most popular consumer a panel , and TN is in the process of development has long been a successful universal popularity .

The advantage of LED TVs

Compared with the conventional LCD , LED LCD TV has the following advantages :

1 , ultra-thin : the thickness of conventional LCD TVs usually about 10cm , LED backlight mode which is more common on laptops , used in television, so that the body has a thin thickness leap .

2 , green energy : used in traditional LCD TV backlighting - CCLF cold cathode fluorescent lamps contain harmful mercury .Character LCD Display Although manufacturers find ways to reduce the mercury content of fluorescent tubes , but completely mercury fluorescent tube will bring some new technical problems . The LED backlight no mercury, in line with green fashion . Also very energy-saving LED backlight . Internal LED drive voltage is much lower than CCFL, power and security are better than CCFL.

3 , long life: different CCFL 's rated life ( half-light ) in the 8,000 to 100,000 hours. In order to enhance performance by improving the design of the CCFL backlight life will be lower . The LED backlight CCFL can reach about twice . Therefore, LED backlight life is usually longer than the CCFL .

4 , color gamut : in fact HD quality . According to the different light color , LED can be divided into white LED backlight and RGB-LED backlight. White LED technology, the main advantage is low power consumption , and RGB-LED backlight has the advantage of superior color performance . RGB-LED backlight high purity can be issued through red, green , and blue light LED devices , to achieve traditional CCFL light source can not reach a wide color gamut. The current mainstream RGB-LED backlight can already reached 105% of the NTSC color gamut , more powerful LED device performance can be achieved more than 120% of the NTSC color gamut.

For LCD TVs ,128x64 lcd display its unique use of liquid crystal molecules are arranged to control changes in external light imaging principle , the decision is the impact of the LCD panel display key advantages and disadvantages . Therefore, in the purchase of TV, the key indicators is to see whether this product is the choice of high-quality panel, LED afford absolute effect !

2013年10月24日星期四

About Smart TV Box

The so-called smart TV box , OLED Display refers to as smart phones, equipped with the operating system , and now the mainstream system Android, User can install and uninstall software , games and other applications to achieve " infinite content , unlimited application" of such TV. While traditional TV programs are watched are fixed and can not access the Internet , we can not control their own preferences with the consumer television program , does not have the content and applications can be loaded .
The concept of the rise of smart TV box for smart tablet PC , with the intelligent hot market for smart TV box brings new hope. Although the standard smart TV box has not come out - even their understanding of the concept has not yet unified . According to research , the current smart TV product box market is also hot up . Data show that the market for smart TV box level of awareness also significantly lower than other TV products.
According to IDC estimates , from 2011 to 2015 , China's smart TV box market CAGR of more than 60% ; to 2015 , about 90% of the TV will match the smart TV market capacity will reach 76 million units. But now many families can not immediately buy TV Smart TV market , but also enjoy the smart TV , just add a using Google Android (android) system for smart TV box , you can achieve the smart TV features . Accompanied by a huge market for smart TV , lcd module smart TV box corresponding market has also ushered in an explosive growth.