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Grayscale curve correcting and adjusting method, terminal and display device

A kind of curve and terminal technology, applied in the field of electronics, can solve the problems of transmittance and grayscale curve shift, color cast brightness, characteristic change, etc., to achieve the effect of improving viewing experience and quality

Inactive Publication Date: 2017-05-17
HKC CORP LTD +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, after a long time of use, the aging of the material itself will cause the characteristics to change, and the transmittance T will also change accordingly. At this time, the gamma curve of the TFTLCD display panel will shift
[0003] Gamma 2.2 is currently considered by the industry to be the best curve for human eyes to experience gray scale changes. However, as the material is used for a long time, it will produce a certain irreversible aging phenomenon, and the characteristics of the gamma curve at this time will also slightly change. The transmittance and grayscale curves will also shift accordingly, and the shift will also increase as the usage time increases, then the image displayed by the TFTLCD will become more and more distorted. At this time, the gamma curve needs to be corrected. To solve problems such as color cast or abnormal brightness

Method used

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  • Grayscale curve correcting and adjusting method, terminal and display device
  • Grayscale curve correcting and adjusting method, terminal and display device
  • Grayscale curve correcting and adjusting method, terminal and display device

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Embodiment Construction

[0032] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0033] It should be understood that when used in this specification and the appended claims, the terms "comprising" and "comprises" indicate the presence of described features, integers, steps, operations, elements and / or components, but do not exclude one or Presence or addition of multiple other features, integers, steps, operations, elements, components and / or collections thereof.

[0034] see figure 1 , is a schematic flowchart of a method fo...

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Abstract

The invention discloses a grayscale (gamma) curve correcting and adjusting method, a terminal and a display device. The method comprises that different gamma curves are arranged in a display panel, and each gamma curve corresponds to one time range; cumulative work time of the display panel is obtained; and the corresponding gamma curve is selected according to the time range to which the cumulative work time belongs; and work of the display panel is controlled according to the selected gamma curve. According to embodiments of the invention, the gamma curve suitable for the present state of the display panel can be selected timely to obtain an image of the optimal display effect, the quality of the display panel is improved, and the watching experience of users is improved.

Description

technical field [0001] The present invention relates to the field of electronic technology, in particular to a method for correcting and adjusting gray scale curves, a terminal and a display device. Background technique [0002] TFT LCD (Thin Film Field Effect Transistor LCD) irradiates the pixels with an external light source, and uses the pixels to control the transmittance T of luminous energy to determine the brightness and darkness of the pixels. The grayscale (gamma) curve, as the proportional relationship between the input signal and the output brightness, plays an important role in the display effect of the display device. The transmittance T as an indicator of output brightness is mainly controlled by the applied voltage, where the applied voltage is the input signal, but the main factor affecting the transmittance T is not only the voltage, but also the material properties of the pixel itself. The materials used are light guide plate, glass substrate, liquid cryst...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09G3/36
CPCG09G3/36G09G2320/0673G09G3/3648G09G2320/048G09G2330/10G09G3/3406G09G3/3607
Inventor 陈猷仁
Owner HKC CORP LTD