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Gamma curve setting method and system

A setting method and curve technology, applied in static indicators, instruments, etc., can solve problems such as short time consumption, poor smoothness, and long setting time.

Active Publication Date: 2021-01-26
BOE TECH GRP CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The present invention at least partly solves the problem of long setting time or poor smoothness of the existing gamma curve setting method, and provides a gamma curve setting method that takes a short time and sets the smoothness of the gamma curve

Method used

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  • Gamma curve setting method and system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025]Such asfigure 1 As shown, this embodiment provides a Gamma curve setting method for an OLED display panel. The OLED display panel includes sub-pixels of the first color. That is, if the OLED display panel includes three sub-pixels of red, green, and blue, and the first color The sub-pixels can be sub-pixels of any color among red, green, and blue, and the method includes:

[0026]S101. Obtain a first brightness of a first color sub-pixel under a first voltage.

[0027]The “first voltage” mentioned here is a driving voltage that can make the first color sub-pixel emit light, so it can make the first color sub-pixel generate a specific first brightness. Specifically, one or more images of the OLED display panel under the gray scale can be collected according to the optical collecting device, and then the first brightness of the first color sub-pixel under the first voltage can be obtained according to these display images.

[0028]S102. Determine the gray-scale voltage of the first color...

Embodiment 2

[0032]Such asfigure 2 As shown, this embodiment provides another Gamma curve setting method for an OLED display panel. The OLED display panel includes a first color sub-pixel and a second color sub-pixel. The OLED display panel usually includes three sub-pixels of red, green, and blue, and the first-color sub-pixels can be sub-pixels of any one of red, green, and blue. The second color sub-pixel is a sub-pixel of any color other than the first color sub-pixel. If the first-color sub-pixel is a red sub-pixel, the second-color sub-pixel may be a blue sub-pixel; and if there are any Other color sub-pixels may be third-color sub-pixels or fourth-color sub-pixels, etc. For example, the third-color sub-pixels herein may be green sub-pixels.

[0033]The Gamma curve setting method includes:

[0034]S201. Acquire a first correspondence relationship, where the first correspondence relationship represents a correspondence relationship between the applied voltage of the light-emitting material formin...

Embodiment 3

[0058]This embodiment provides another Gamma curve setting method, which is similar to the Gamma curve setting method of Embodiment 2. The setting method of this embodiment is different from the steps S201 and S204 of the second embodiment.

[0059]In step S201, the method further includes: acquiring a second correspondence relationship, which represents the correspondence relationship between the applied voltage of the light-emitting material forming the second color sub-pixel in the OLED display panel and the brightness thereof.

[0060]Wherein, that is to say, the second corresponding relationship between the applied voltage and the brightness can be obtained by testing the luminescent material forming the second color sub-pixel.

[0061]Step S204 can be replaced with the following steps:

[0062]S3041. Obtain the second brightness of the second color sub-pixel under the second voltage.

[0063]Wherein, the "second voltage" mentioned here is a driving voltage that can make the second color sub-...

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Abstract

The invention provides a Gamma curve setting method and a system thereof, belonging to the field of display technology, which can at least partially solve the problems of long setting time or poor smoothness of the existing Gamma curve setting method. A Gamma curve setting method of the present invention is used for an OLED display panel, the OLED display panel includes sub-pixels of a first color, and the method includes: obtaining the first brightness of the sub-pixels of the first color under the first voltage; according to the first brightness , the first voltage, the expected luminance of the subpixel of the first color in at least part of the grayscale, and the first correspondence, determine the grayscale voltage of the subpixel of the first color in at least part of the grayscale; wherein, the first correspondence represents the OLED display panel The corresponding relationship between the voltage applied to the luminescent material forming the first color sub-pixel and its brightness.

Description

Technical field[0001]The invention belongs to the field of display technology, and specifically relates to a Gamma curve setting method and a system thereof.Background technique[0002]Compared with LCD display panels, organic light-emitting diode display panels (Organic Light-Emitting Diode, OLED) have a wider color gamut and more colors. Therefore, OLED display panels are often used in high-end products.[0003]In an OLED display panel, the Gamma curve generally reflects the brightness of each color sub-pixel under different gray levels, so the setting of the Gamma curve is one of the important parameters to ensure the display effect of the OLED display panel. In the prior art OLED display panel, in order to obtain the Gamma curve, it is necessary to test and adjust the gray scale voltages of the sub-pixels of different colors under partially bound gray scales one by one, and other gray scales between adjacent bound gray scales The gray-scale voltage of the gray scale is calculated by...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G09G3/3208
CPCG09G3/3208G09G2320/0673
Inventor 冯雷
Owner BOE TECH GRP CO LTD