Analysis and Prospect of new generation Full LED backlight technology

For most consumers, LED backlight is almost the most cutting-edge technology technical vocabulary, in technology seems to be set thousands of advantages in one. But like other new technologies, the development of LED backlight also experienced a fairly long period of time, LED backlight can clearly distinguish generations. Currently on the market the most popular side type LED backlight, in fact, there are some defects in the technology, as the latest generation of Full LED distance closer to us, we need to review the time along the footprint of the development process of LED backlight.

You can't have it both ways

We divided the LED backlight type, the main basis is in accordance with the distribution of the state of the LED lamp, in the past we are most familiar with the two types of side and straight down. Which side is on the screen backlight two is placed on the edge of the LED unit, it can be very slim, most of LED TV are of this type, but because the light source mainly concentrated on the two edge, in use, you will find that in the central screen easily the sag or leakage caused by brightness area, the central position of the contrast is not high enough, the screen brightness contrast vague; direct type backlight is LED evenly placed in the rear side panel, compared with backlight, it can make the light distribution is more uniform, and the partial shading control is more accurate, thus can effectively improve the image quality, but unfortunately, direct type backlight and large volume, high cost, although there are certain advantages in performance, but in the actual sales of products was less. Use.

Best solution

So there is not a new backlight mode, you can integrate the advantages of both side and straight down, but also to avoid the shortcomings of these two ways? Today to introduce you to the Full LED can fully meet the wishes of users. Full LED and the two generation of the biggest difference is that the LED to enhance the number of LED lights, will be able to significantly enhance the control area, and greatly reduce the thickness. With 55 inches of product for example, the total number of LED direct type backlight is only 336, can control the partition for 16, while the Full LED backlight system of the same size, the number of LED up to 1200, can independently control the division reached 240, while the Full LED backlight the thick degree can be reduced to 23.3mm. These exciting figures, witnessed the LED backlight mode, by the number of LED and the distribution of the number of changes in the final result of the quality of the display.

From left to right in the side, straight down and Full LED three backlight schematic

So what are the specific advantages of Full LED compared to the first two generations of LED backlight? In fact, according to the above we provide you with the schematic diagram and we explain the following is very easy to think clearly, when you choose to buy TV to understand.

The side of the light source into the type LED is mainly distributed on the two along, it is the transmission of light guide plate to rely on energy efficiency, even if the light guide plate is again high, compared to direct light in efficiency and uniformity will certainly be discounted, and because of the light guide plate is one, it cannot be on a regional difference the personalized control of light and shade, is easy to cause the brightness depressions or black light leakage, in the center of the screen contrast will often decline, resulting in the intermediate picture of light and dark details are vague. Compared to the Full LED backlight, side entry backlight is only similar in volume, in terms of performance and other aspects of the picture is fully Full LED backlight.

Direct type LED backlight, LED is evenly distributed in the rear of the liquid crystal panel, so the brightness uniformity can be improved, can be controlled by a region of the LED to enhance the contrast, resulting in higher quality, but at the same time, in order to ensure the relatively dense LED heat dissipation the effect is good, so the direct type LED backlight is usually very heavy. Although the picture quality is acceptable, but because of the larger size, almost the same as the thickness of the ordinary CCFL backlight products, so manufacturers of direct LED backlight to promote the lack of interest. Full LED for the change of a regional response faster and more accurate, which makes Full LED in area control precision and quality, than the direct type LED stronger, coupled with the volume control has made great breakthrough, so Full LED and direct LED comparison has no suspense the victory.

Efficient and energy saving

If the measured three LED backlight use durability and protection of users from the investment point of view, you will find Full LED, although the number of LED increase exponentially, but because the photoelectric efficiency is higher, the results did not consume much power, light but every one of the requirements of negative LED unit is greatly reduced, this is effective for reducing the heat, thereby greatly enhancing the LED Full LED service is good.

The pursuit of quality and comfort is constant. Through the above a variety of LED backlight schematic diagram and analogy, I believe that the pros and cons of friends on the type of LED backlight has been at a glance. Full LED in the display quality, durability, light weight has great progress, representing the future direction of backlight technology.

Technology has become productive forces

It is gratifying that we said today, Full and LED no longer is the concept of technology in the laboratory out of reach, it would have to assemble some of the latest models, including LG, LX9500 and LEX9 in the high-end LE8600 products, using Full LED technology innovation. Nowadays, domestic