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Method for inhibiting color difference of OLED panel by using IRC gamma rays

A technology of gamma rays and gamma curves, applied to static indicators, instruments, etc., can solve problems such as color deviation and achieve good results

Active Publication Date: 2021-07-27
晟合微电子(肇庆)有限公司
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Problems solved by technology

However, taking this approach can lead to color shifts because the gamma curve cannot be achieved ideally at all brightness levels

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  • Method for inhibiting color difference of OLED panel by using IRC gamma rays
  • Method for inhibiting color difference of OLED panel by using IRC gamma rays
  • Method for inhibiting color difference of OLED panel by using IRC gamma rays

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Embodiment Construction

[0015] Through the following description of the embodiments, it will be more helpful for the public to understand the present invention, but the specific embodiments given by the applicant cannot and should not be regarded as limitations on the technical solutions of the present invention, any components or technical features Changes to the definition and / or formal but not substantive changes to the overall structure should be regarded as the scope of protection defined by the technical solutions of the present invention.

[0016] With the development of optoelectronics and semiconductor technology, the rapid evolution of flat-panel displays has been driven. Liquid crystal displays (LCDs) have become a display device due to their superior characteristics such as small size, low power consumption, no radiation, and low electromagnetic interference. the mainstream of the market. Among them, the OLED display is a display made of organic electroluminescent diodes. Since it also h...

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Abstract

The invention discloses a method for suppressing color difference of an OLED (Organic Light Emitting Diode) panel by utilizing IRC gamma rays, which comprises the following steps of: 1) adjusting a display brightness value by adopting a resistance voltage drop compensation method; 2) detecting color deviation caused in a specific pattern by using a spectral density analysis module; and 3) searching the color deviation of a part of pixels, correcting the gamma curve of the part of pixels, searching the color deviation of the part of pixels in one or more lookup tables, and updating the gamma value by using the display brightness value and the gamma label. The method has the beneficial technical effects that when the gamma curve is updated, only the gamma curve in a certain range is updated, and the whole gamma curve is not modified. Therefore, when resistance drop compensation is carried out, the spectral density analysis module and the lookup table have advantages in power consumption and resource utilization, and the effect is better than the effect of updating the whole gamma curve when chromatic aberration is generated every time.

Description

technical field [0001] The invention relates to a method for suppressing the chromatic aberration of an OLED panel, in particular to a method for suppressing the chromatic aberration of the OLED panel by using IRC gamma rays. Background technique [0002] OLED panels have a flaw that refers to brightness distortion due to different voltage drops for each element in the internal circuit. In order to reduce this distortion, the method of controlling the gamma curve must be used for resistance drop compensation, that is, IRC (IR-Drop Compensation). However, taking this approach can lead to color shifts because the gamma curve cannot be achieved ideally at all brightness levels. Contents of the invention [0003] The purpose of the present invention is to provide a method for suppressing the chromatic aberration of an OLED panel by using IRC gamma rays, which can be achieved with lower power consumption and a higher The color shift can be suppressed with few resources, and t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09G3/3208
CPCG09G3/3208G09G2320/0673
Inventor 张智鈗徐祥准
Owner 晟合微电子(肇庆)有限公司
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