OLED life attenuation compensation method and method for driving OLED display

A technology of attenuation compensation and driving method, which is applied to static indicators, instruments, etc., can solve the problems of accelerated OLED pixels and deterioration of life compensation effect, and achieves the effect of improving compensation effect and delaying attenuation speed

Inactive Publication Date: 2018-03-16
SHENZHEN CHINA STAR OPTOELECTRONICS SEMICON DISPLAY TECH CO LTD
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Problems solved by technology

The above method can prolong the lifetime of OLED pixels to a certain extent. However, increasing the current flowing through OLED pixels multiple times in order to compensate for OLED pixels will cause the lifetime of OLED pixels to decay at a faster rate after multiple compensations, resulting in life compensation. The effect gradually deteriorates

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  • OLED life attenuation compensation method and method for driving OLED display
  • OLED life attenuation compensation method and method for driving OLED display
  • OLED life attenuation compensation method and method for driving OLED display

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Embodiment Construction

[0032] In order to further illustrate the technical means adopted by the present invention and its effects, the following describes in detail in conjunction with preferred embodiments of the present invention and accompanying drawings.

[0033] see figure 2 , the present invention provides a method for compensating OLED lifetime attenuation, in the first embodiment of the present invention, comprising the following steps:

[0034] Step S1, providing OLED pixels.

[0035] Step S2, providing display data to the OLED pixels.

[0036] Step S3, obtain the attenuation coefficient of the OLED pixel, please refer to image 3 , when the attenuation coefficient of the OLED pixel reaches a preset first compensation initial value ηmin1, change the display data input to the OLED pixel to compensate the OLED pixel, so that the attenuation coefficient of the OLED pixel increases to a preset first compensation target Value ηmax1.

[0037] Specifically, the first compensation initial valu...

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Abstract

The invention provides an OLED life attenuation compensation method and a method for driving an OLED display. According to the OLED life attenuation compensation method, in the initial stage of decrease in the attenuation coefficient of OLED pixels, compensation is made for the OLED pixels at a high initial value of compensation to increase the attenuation coefficient to a high target value of compensation, and then, the initial value of compensation and the target value of compensation are gradually lowered so that compensation can be made for the OLED pixels at a low initial value of compensation after multiple times of compensation to increase the attenuation coefficient to a low target value of compensation. Therefore, the attenuation of OLED pixels is delayed, and the compensation effect of OLED life attenuation is improved.

Description

technical field [0001] The invention relates to the field of display technology, in particular to an OLED life-span attenuation compensation method and a driving method for an OLED display. Background technique [0002] Organic light emitting diode (Organic Light Emitting Display, OLED) display device has self-illumination, low driving voltage, high luminous efficiency, short response time, high definition and contrast, nearly 180° viewing angle, wide operating temperature range, and can realize flexible display and With many advantages such as large-area full-color display, it is recognized by the industry as a display device with the most potential for development. [0003] OLED display devices can be divided into passive matrix OLED (Passive Matrix OLED, PMOLED) and active matrix OLED (Active Matrix OLED, AMOLED) two categories according to the driving method, namely direct addressing and thin film transistor (Thin Film Transistor, TFT) matrix addressing two types. Amon...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09G3/3225
CPCG09G3/3225
Inventor 王利民黄泰钧
Owner SHENZHEN CHINA STAR OPTOELECTRONICS SEMICON DISPLAY TECH CO LTD
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