Method for prolonging service life of organic light emitting device and display device

A technology of electroluminescence and display, applied in the direction of electric solid state devices, static indicators, instruments, etc., to achieve the effect of prolonging the life of OLED, reducing the impact of damage, and delaying the decline of OLED
CN106205488AActive Publication Date: 2016-12-07TCL CHINA STAR OPTOELECTRONICS TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
TCL CHINA STAR OPTOELECTRONICS TECH CO LTD
Publication Date
2016-12-07

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Abstract

The invention discloses a method for prolonging the service life of an organic light emitting device. The method includes the steps of dividing a display screen into a plurality of sub-regions, calculating a service life influencing factor of each sub-region, calculating the luminance ratio coefficient of each sub-region according to image features and the service life influencing factor of the sub-region, calculating the actual display luminance of the display screen according to the luminance ratio coefficient, and outputting images according to the actual display luminance. The invention further provides a display device. With the service life influencing factors and the image features as considering factors, the luminance ratio coefficients are calculated and luminance processing is conducted, the damage influences on the whole image quality are reduced, high and low gray level mixed sub-regions select to increase or decrease the processing strength according to the simplicity and complexity degree of the images and the positions where the sub-regions are located, the image luminance is adjusted on the premise of ensuring the image quality influences, the recession of the OLED is delayed, and the service life of the OLED is prolonged.
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Description

technical field

[0001] The invention relates to the field of display technology, in particular to a method for prolonging the service life of an organic electroluminescent display and a display device. Background technique

[0002] Organic Light Emitting Diode (OLED) has the advantages of high contrast ratio, low power consumption, short response time, wide viewing angle and flexibility, etc., which has attracted a lot of attention. However, there are serious problems of brightness degradation and lifespan decay in OLED displays. The decay speed of OLED is positively correlated with the display brightness, that is, the decay is fast when the brightness is high, and the decay is slow when the brightness is low. The main method to delay the decline of OLED is to reduce the display brightness of the high gray level area in the image.

[0003] In the prior art, one way to delay the decline of OLED is to set a maximum brightness value, and display the gray levels higher than the...

Claims

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