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Optical compensation method and optical compensation device of display panel

A display panel and optical compensation technology, applied to static indicators, instruments, etc., can solve the problems of limited gamma correction ability and poor gamma correction effect, and achieve the effect of improving gamma correction ability

Active Publication Date: 2018-01-19
WUHAN TIANMA MICRO ELECTRONICS CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The gamma curve is usually the corresponding relationship curve of the gamma voltage corresponding to each gray scale, and the gray scale range and the gamma voltage range are fixed, so when performing correction, if the actual brightness of the highest gray scale is less than the target brightness, or, When the actual brightness of the lowest grayscale is greater than the target brightness, the brightness of the edge grayscale of the grayscale interval can no longer be adjusted through the established gamma curve, resulting in limited gamma correction capability and poor gamma correction effect

Method used

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  • Optical compensation method and optical compensation device of display panel
  • Optical compensation method and optical compensation device of display panel
  • Optical compensation method and optical compensation device of display panel

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Embodiment Construction

[0052] To solve the problem of poor gamma correction effect in the prior art, the embodiments of the present invention provide an optical compensation method and device for a display panel, which are used to expand the range of the gamma curve and improve the gamma correction capability.

[0053] In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention will be further described below in conjunction with the accompanying drawings and embodiments. Example embodiments may, however, be embodied in many forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of example embodiments to those skilled in the art.

[0054] It should be noted that in the following description, specific details are set forth in order to fully understand the present invention. However...

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Abstract

The invention discloses an optical compensation method and an optical compensation device of a display panel. The optical compensation method includes lightening the display panel according to a set grey scale in a standard grey scale range to acquire real display brightness of each pixel of the display panel; determining a compensation grey scale stepping value of each pixel according to the realdisplay brightness of each pixel, target brightness corresponding to the set grey scale and corresponding relation between brightness and grey scale; according to the determined compensation grey scale stepping value of each pixel and a predetermined extension gamma curve, subjecting each pixel to gamma voltage correction to enable each pixel to reach the target brightness. The extension gamma curve includes the standard grey scale range, a first extended grey scale range smaller than the smallest grey scale, and a second extended grey scale range larger than the largest grey scale, so that grey scales on the edge of the original standard grey scale range can be adjusted towards larger or smaller gamma voltage, each grey scale in the original standard grey scale range can be corrected accurately, and gamma correction capability is improved.

Description

technical field [0001] The invention relates to the field of display technology, in particular to an optical compensation method and device for a display panel. Background technique [0002] With people's pursuit of the appearance, color and display practicability of the display, the replacement of the display continues to develop and progress. The current mainstream displays in the market mainly include liquid crystal displays, plasma displays, organic light-emitting diode displays, light-emitting diode displays, and field emission displays. Wait. Among them, the active matrix electroluminescent display panel (Active-matrix Organic Light-Emitting Diode, AMOLED) in the organic light-emitting diode display is an important flexible display panel, which has self-illumination, no backlight source, and wide color gamut. , high contrast, thin thickness, wide viewing angle, fast response speed, can be used for flexible panels, wide operating temperature range, simple structure and...

Claims

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Application Information

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IPC IPC(8): G09G3/3225
Inventor 杨斌
Owner WUHAN TIANMA MICRO ELECTRONICS CO LTD
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