Terminal manufacturers such as iFLYTEK, Guoyue, Bigme and Sony released the large-screen electronic paper panel products in succession recently, which began the innovative application of electronic paper. As shown by the data of RUNTO, the market scale of electronic paper terminal is expected to USD 11.3 billion by 2021 and to USD 72.3 billion by 2025, with a compound growth rate of 59% in these five years.
Mini LED, also called millimeter light emitting diode, with chip size 50 ~ 200 microns. As backlight, Mini LED is applicable to LCD screen, and can realize fine display effects such as HDR by improving contrast significantly.
The brightness of TFT LCD, measured in cd/m2, is the product of the brightness of the backlight and the transmittance of the display. To increase the brightness of TFT LCD, the common practice is to increase the brightness of backlight. However, this LCD design strategy also brings side effects that the temperature of backlight will be increased, the cost will be increased and many other quality and reliability issues will also occur. Therefore, the best design countermeasure is to improve its transmittance.