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Method of correcting correlation between display panel voltage and gray scale value

A technology for displaying panels and grayscale values, applied to static indicators, instruments, etc., can solve problems affecting Gamma correction, etc.

Active Publication Date: 2022-04-26
KUNSHAN YUNYINGGU ELECTRONICS TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to pixel / sub-pixel non-uniformity, the correlation between gray value and gate voltage may vary from pixel to pixel, affecting Gamma correction

Method used

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  • Method of correcting correlation between display panel voltage and gray scale value
  • Method of correcting correlation between display panel voltage and gray scale value
  • Method of correcting correlation between display panel voltage and gray scale value

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Embodiment Construction

[0020] In the following detailed description, numerous specific details are set forth by way of example in order to provide a thorough understanding of the related disclosure. It should be apparent, however, to one skilled in the art that the present disclosure may be practiced without such details. In other instances, well-known methods, procedures, systems, components and / or circuits have been described at a relatively high level and without detail in order to avoid unnecessarily obscuring aspects of the present disclosure.

[0021] Throughout the specification and claims, terms may have subtle meanings implied or implied by the context beyond the expressly stated meaning. Likewise, the phrase "in one embodiment / example" as used herein does not necessarily refer to the same embodiment, and the phrase "in another embodiment / example" as used herein does not necessarily refer to a different embodiment / example. Example. For example, it is intended that the claimed subject matt...

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Abstract

Methods and systems are provided for calibrating multiple voltages of light emitting elements on a display panel and multiple gray scale values ​​of individual pixels of the light emitting elements. The method may include determining a mapping correlation between a plurality of voltages of a light-emitting element and a plurality of brightness values ​​of the light-emitting element, determining N grayscale values ​​of a pixel, and determining N first brightness values, each first brightness value correspond to corresponding ones of the N gray values, respectively. The method may further comprise: determining N first voltages mapped to the N first luminance values ​​using mapping correlation; and determining (M−1) second luminance values ​​in each of the N first luminance values . Each of the (M-1) second brightness values ​​may correspond to a different dimmed brightness value of the corresponding first brightness value.

Description

technical field [0001] The present disclosure relates generally to display technology, and more specifically, to display panel calibration. Background technique [0002] Organic Light Emitting Diode (OLED) display panels are widely used in different fields to display images in various colors, luminance values ​​and grayscale values. The brightness and grayscale of a display panel depend in part on the characteristics of the OLEDs on the display panel. Due to the non-uniformity of the manufacturing process, the OLED of one display panel may be different from the OLED of another display panel. For example, one OLED may have a different threshold voltage than another OLED, causing the amount of light emitted by those OLEDs to vary when the same drive voltage is applied across them. Such unevenness in luminance values ​​causes unevenness in grayscale values ​​of OLEDs, thereby causing display performance of display panels to be different from each other. Therefore, calibratio...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G09G3/3208
CPCG09G3/3208G09G2320/0271G09G2320/0276G09G2320/0626G09G2320/0666G09G2320/0693G09G3/2003G09G3/2007
Inventor 吴俊达庄侑兴涂英豪郑武雄
Owner KUNSHAN YUNYINGGU ELECTRONICS TECH CO LTD