![]() ![]() LED-backlit displays use the same TFT LCD ( thin-film-transistor liquid-crystal display) technologies as CCFL-backlit LCDs, but offer a variety of advantages over them. If the TV backlight itself only has a brightness of 300 nits, using DBEF without any changes, the brightness can be increased to about 390 nits.An Apple iPod Touch disassembled to show the array of white-edge LEDs powered on with the deviceĪn LED-backlit LCD is a liquid-crystal display that uses LEDs for backlighting instead of traditional cold cathode fluorescent (CCFL) backlighting. Now the DBEF produced by 3M Company in the United States can generally increase the brightness by about 30%. Using it in the edge-lit LED backlight not only does not affect the overall thickness of the TV, but also can make up for the brightness of the TV screen under cost control. ![]() The brightness enhancement film is simply an ultra-thin plastic optical sheet. Problem (general high-performance LEDs are two to three times more expensive than ordinary LEDs). It is also different from the use of high-efficiency LEDs which leads to increased production costs. It does not rely on the upstream glass supplier's research and development progress. It is simpler and more direct than improving the glass transmittance. The use of brightness enhancement film is different from other solutions. The most common solution in the market now is to use a high-performance brightness enhancement film to improve the brightness problem. This adjustment of the layout greatly reduces the use of LEDs, thereby reducing production costs and energy consumption.īut most people would think that if the LED is used less, the brightness of the screen will drop? Isn’t the TV picture quality also degraded? Manufacturers anticipate this problem early in the morning, so most manufacturers will find the most ideal way to solve it.įigure title: Dot matrix and edge-lit LED layout The original dot matrix type places the LEDs evenly on the TV backlight, while the edge-light type places the LEDs on the upper and lower sides of the backlight. Less use of LEDs can be adjusted on the backlight layout. But the most important thing is to significantly improve energy consumption to match the country's latest environmental protection and energy saving policies. In order to allow modern LED backlights to quickly become popular in the market, companies have begun to consider using less LEDs to reduce product costs. Among them, technology improvement and cost control are important aspects. Domestic local brands such as Hisense, TCL, Konka, and Skyworth are all working hard to develop their own LED backlights. With various obvious advantages, manufacturers have been actively developing LED-backlit TVs in recent years. The development from the initial dot matrix type to today's side-light type is one of the important technological improvements. These are the main reasons why LED-backlit TVs can instantly become popular in the market.ĭuring the development of LED backlight, the technology has been improving all the time. In addition, the price of LED TVs has been declining, making LED TVs more cost-effective. These advantages are reflected by the fact that the general public can simply compare with CCFL TV. Most people know that LED backlight has several advantages, including thinner TVs, lower power consumption, richer colors, and so on. Most people inside and outside the industry should agree that LED will completely replace CCFL as the main TV backlight in two to three years. Stepping into 2000, plasma TVs began to appear around 2003, CCFL (cold fluorescent tube light source) LCD TVs began to appear and popularized until 2010, LED backlight technology gradually replaced CCFL. Looking back on the history of TV development, the traditional CRT TV at home must be the product that everyone thought of for the first time. However, its weak point of non-local dimming has prompted the birth of a locally dimmable matrix backlight solution, which is a backlight technology that combines side-in and direct-down. The adjustment of the layout greatly reduces the use of LEDs, thereby reducing production costs and energy consumption, which is of great benefit to manufacturers and consumers. The side-light type places the LEDs on the upper and lower sides of the backlight. ![]()
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