LED backlight is hot! How high is the level of its backlight device
Aug 04, 2021
Recently, Skyworth TV released the Mini LED high-end TV-Skyworth Q70 Mingli screen TV. According to official information, this product uses Mini LED backlight technology. Not only Skyworth, but downstream terminal brands such as Changhong, Hisense, TCL, Samsung, LG, and Xiaomi have launched Mini LED backlight products.
Mini LED backlight technology has the advantages of lightness and thinness, high image quality, high resolution, and low power consumption. It has attracted attention from all walks of life. While the downstream is actively expanding, what products are available for Mini LED backlight packages in the upstream of the industry chain? Next, take the Mini COB backlight device of Dongshan Precision, a packaging head company, as an example to see what level of Mini LED backlight device has reached.
Dongshan Precision Mini COB adopts small-size flip chip and ultra-thin FPC soft board. Using precise compression molding process, the flatness can be controlled within 0.007mm, so that the thickness of the colloid caused by the warpage of the board can be minimized and controlled accurately. The colloid is highly consistent, the height of the entire finished product package is less than 0.3mm, and the product reliability is excellent. The attenuation is less than 10% in a high temperature and high humidity environment of 85℃ & 85% RH for 1000 hours, and there is no dead light after 500 cycles of -40℃～125℃ temperature cycle. . According to Dongshan Precision's disclosure, the product has been tested and trial-produced on a number of clients, and has been well received by customers.
In terms of performance, Dongshan Precision Mini COB device has the characteristics of ultra-thin height and good display effect, and good consistency. With Local Dimming technology, it can achieve fine control of dynamic area, and the black and white effect is more obvious. It reflects the effect of high contrast and HDR, and has both It can achieve unique advantages such as high reliability, high brightness, and high contrast.
In addition, the product has a full-chip COB backlight display effect, good consistency, no splicing seams, to compensate for the lack of brightness at the edge of the OLED panel and the dim phenomenon between the traditional LED backlight strips, and the product has a super clear display effect, Ultra-high contrast, wide color gamut, no glare, ultra-thin and other characteristics, can meet the needs of the high-end automotive market, products are widely used in 13.3-inch, 15.6-inch, 17.3-inch laptop display backlight and 10.1 Inch, 12.3-inch car display.
According to the expert, the Industrial Research Center understands that Dongshan Precision’s Mini COB backlight device currently has two production lines that are compatible with the production of flexible boards and ultra-thin rigid boards and glass substrates, and driver ICs can be configured according to requirements. Using the flip-chip Mini LED chip + COB solution, the OD is infinitely close to 0, and the ultra-thin design is truly realized. The products are mainly used in the fields of Pad, laptop, car display, monitor, TV, professional conference machine and so on. At the same time, based on years of experience in the field of backlight development and design, Dongshan Precision can provide customized services for Mini backlight panels, modules, etc. Currently, the maximum COB single-chip light panel is 400 mm * 600 mm.
Experts said the Industrial Research Center believes that under the adverse impact of the global new crown epidemic, Dongshan Precision's revenue and profits in 2020 are expected to grow steadily, of which the net profit in 2020 will increase by 99.24%-127.71% over the same period of the previous year. , And achieved better operating results. Compared with other companies, the biggest advantage of Dongshan Precision lies in its large-scale production capacity and process quality assurance. It is understood that Dongshan Precision Mini COB backlight devices have been shipped in small batches, which will be a force that cannot be ignored to promote the commercialization of Mini LED backlight technology or products.
