Algorithm and device for improving lifespan of oled
A technology of life and algorithm, applied in static indicators, instruments, etc., can solve the problems of limited life efficiency of OLED, no consideration of display effect, decrease of aperture ratio, etc., to achieve high accuracy, ensure brightness uniformity, and prolong life effect.
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no. 1 example
[0062] Based on the OLED lifetime improvement algorithm and the optimization method of the OLED lifetime improvement algorithm proposed above, the above method was implemented with an OLED sample provided by a certain company. In the embodiment, the OLED is lit with 5000 nits as the initial brightness. Considering that different pixels of the image display different brightnesses, the degree of attenuation is different, resulting in different uniformity. The uniformity of the LCD display is greater than 75%, so it needs to be considered when optimizing the OLED life compensation algorithm. Make the display uniformity greater than 75%, and determine the lower limit L of OLED brightness x 75% L 0 That is 3750nits; for the actual OLED driving capability, the maximum current corresponding to the OLED brightness can reach 15000nits, so the brightness compensation limit L is determined max for 15000nits; for L y For cyclic processing, the implementation process adopts ΔL as 1% L 0...
no. 2 example
[0066] refer to Figure 6 , Figure 6 It is a block diagram of an implementation device for an OLED lifetime improvement algorithm, including a compensation data calculation module 601, a brightness data calculation module 602, a brightness data storage module 603, an attenuation degree calculation module 604, an attenuation degree storage module 605 and a detection and judgment module 606.
[0067] The main function of the calculation compensation data module 601 is to calculate the corresponding relationship between gray scale and brightness and the relationship between brightness and voltage or current through the N and α values sent by the detection and judgment module 606, and then send the brightness data to the calculation brightness The data module 602 sends the voltage or current data to the OLED drive module 607; the calculation brightness data module 602 is to calculate the brightness data sent by the calculation compensation data module 601; the storage brightnes...
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