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A kind of OLED module gamma adjustment method and adjustment device

An adjustment method and technology of an adjustment device, which can be applied to static indicators, instruments, etc., can solve the problems of reducing the Gamma adjustment efficiency of OLED modules and inconsistency in adjustment speed.

Active Publication Date: 2021-03-05
EVERDISPLAY OPTRONICS (SHANGHAI) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] OLED (Organic Light-Emitting Diode, Organic Light-Emitting Diode) modules are more and more widely used due to their advantages of self-illumination, wide viewing angle and bright colors. Coefficient matrix method, but the linear interpolation method and the coefficient matrix method have inconsistent adjustment speeds for high grayscale intervals and low grayscale intervals, which greatly reduces the Gamma adjustment efficiency of OLED modules

Method used

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  • A kind of OLED module gamma adjustment method and adjustment device
  • A kind of OLED module gamma adjustment method and adjustment device
  • A kind of OLED module gamma adjustment method and adjustment device

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Experimental program
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Embodiment 1

[0054] figure 1 It is a schematic flowchart of a method for adjusting Gamma of an OLED module provided in Embodiment 1 of the present invention. The technical solution of the embodiment of the present invention can be applied in the scene where the Gamma curve of the OLED module needs to be adjusted, and can be implemented by the device for adjusting Gamma of the OLED module provided by the embodiment of the present invention. Such as figure 1 As shown, the method includes:

[0055] S110. Obtain the maximum gray scale value corresponding to the OLED module.

[0056] Exemplarily, taking an 8-bit grayscale value as an example, the grayscale value of the OLED module ranges from grayscale 0 to grayscale 255, and the maximum grayscale value is 255 grayscale. It should be noted that, here, the grayscale value is only 8 bits for illustration, and the embodiment of the present invention does not limit the number of bits of the grayscale value.

[0057] S120. Obtain a defined gray ...

Embodiment 2

[0098] image 3 It is a flow chart of another OLED module Gamma adjustment method provided in Embodiment 2 of the present invention, such as image 3 As shown, on the basis of Embodiment 1, after step 120 and before step 130, the OLED module Gamma adjustment method may also include:

[0099] S230. Acquire a set gray scale value according to the maximum gray scale value and the set Gamma curve. Wherein, the set gray scale value is an adjacent gray scale value of the maximum gray scale value.

[0100] Exemplarily, taking an 8-bit grayscale value as an example, the grayscale value of the OLED module ranges from grayscale 0 to grayscale 255, and the maximum grayscale value is 255 grayscale. Such as figure 2 As shown, the size of the set gray scale value can be correspondingly set according to the set Gamma curve 201 and the maximum gray scale value, for example, the set gray scale value can be set according to the set Gamma curve to set the adjacent gray scale value of the max...

Embodiment 3

[0112] Figure 4 It is a schematic structural diagram of an OLED module Gamma adjustment device provided in Embodiment 3 of the present invention, as shown in Figure 4 As shown, on the basis of the foregoing embodiments, the device includes:

[0113] The maximum gray scale value acquisition module 310 is used for obtaining the maximum gray scale value corresponding to the OLED module;

[0114]A defined grayscale value acquisition module 320, configured to obtain a defined grayscale value according to the maximum grayscale value and the set Gamma curve;

[0115] The first target voltage value acquisition module 330 is configured to obtain the above-mentioned maximum gray-scale by linear interpolation according to the above-mentioned maximum gray-scale value, the above-mentioned defined gray-scale value, the above-mentioned maximum voltage value, the above-mentioned defined voltage value, and the above-mentioned first node gray-scale value The value corresponds to the first t...

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Abstract

The invention discloses a Gamma adjustment method and device of an OLED module. The method includes: obtaining the maximum grayscale value corresponding to the OLED module; obtaining the defined grayscale value according to the maximum grayscale value and the set Gamma curve; the maximum grayscale value and the defined grayscale value form a first grayscale interval, the first grayscale The scale interval includes a plurality of first node grayscale values, and the first target voltage value corresponding to each first node grayscale value is obtained by linear interpolation; adjust the voltage value corresponding to the first node grayscale value in the first grayscale interval To the corresponding first target voltage value; define the gray scale value and the minimum set gray scale value to form a second gray scale interval, the second gray scale interval includes a plurality of second node gray scale values, and use the coefficient matrix method to obtain each second gray scale interval A second target voltage value corresponding to the gray scale value of the node; adjusting the voltage value corresponding to the gray scale value of the second node in the second gray scale interval to the corresponding second target voltage value. Through the technical scheme of the invention, the Gamma adjustment efficiency of the OLED module is improved.

Description

technical field [0001] Embodiments of the present invention relate to the field of display technology, and in particular to a method and device for adjusting Gamma of an OLED module. Background technique [0002] The Gamma curve of the display module is an important parameter of the display module that characterizes the response characteristics of optical brightness to electrical signals. By adjusting the Gamma curve of the display module, the characteristic parameters of the display screen of the display module can be adjusted to improve the display of the display module. Effect. [0003] OLED (Organic Light-Emitting Diode, Organic Light-Emitting Diode) modules are more and more widely used due to their advantages of self-illumination, wide viewing angle and bright colors. The coefficient matrix method, but the linear interpolation method and the coefficient matrix method have inconsistent adjustment speeds for the high gray scale interval and the low gray scale interval, ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G09G3/3208
Inventor 王可何志江马绍栋任娟
Owner EVERDISPLAY OPTRONICS (SHANGHAI) CO LTD