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Driving controller

A technology for driving controllers and determiners, which is applied to instruments, static indicators, etc., and can solve problems such as deterioration of light-emitting elements and shortened life of light-emitting elements

Pending Publication Date: 2021-10-22
SAMSUNG DISPLAY CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

A mark may be displayed at a constant position in an image for a long time, and a mark displayed at a constant position for a long time may cause deterioration of a light emitting element corresponding to the position of the mark and shorten the life of the light emitting element

Method used

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Examples

Experimental program
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Embodiment Construction

[0042] Hereinafter, aspects of some example embodiments of the inventive concepts will be explained in more detail with reference to the accompanying drawings.

[0043] figure 1 is a block diagram illustrating a display device according to some example embodiments of the inventive concepts.

[0044] refer to figure 1 , the display device includes a display panel 100 and a display panel driver. The display panel driver includes a driving controller 200 , a gate driver 300 , a gamma reference voltage generator 400 and a data driver 500 .

[0045] The display panel 100 has a display area where an image is displayed and a peripheral area adjacent to the display area.

[0046] The display panel 100 includes a plurality of gate lines GL, a plurality of data lines DL, and a plurality of pixels P connected to the gate lines GL and the data lines DL. The gate lines GL extend in a first direction D1, and the data lines DL extend in a second direction D2 crossing the first direction ...

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PUM

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Abstract

A driving controller includes: a logo determiner configured to determine whether or not input image data includes a logo; a logo grayscale value calculator configured to calculate a logo grayscale value of a logo area corresponding to the logo in response to the input image data including the logo; a light emitting element life expectancy determiner configured to determine a life expectancy of a light emitting element corresponding to the logo area; a compensation reference grayscale value generator configured to determine a compensation reference grayscale value according to the life expectancy of the light emitting element corresponding to the logo area; and a logo luminance compensator configured to compare the logo grayscale value to the compensation reference grayscale value to determine whether or not to compensate a luminance of the logo area.

Description

technical field [0001] Aspects of some example embodiments of inventive concepts relate to a driving controller, a display device including the driving controller, and a method of driving a display panel using the driving controller. Background technique [0002] Generally, a display device includes a display panel and a display panel driver. The display panel displays an image based on the input image data. The display panel includes multiple gate lines, multiple data lines and multiple pixels. The display panel driver includes a gate driver, a data driver and a driver controller. The gate driver outputs gate signals to gate lines. The data driver outputs data voltages to the data lines. The driver controller controls the gate driver and the data driver. [0003] The images displayed on the display panel may include logos representing broadcasters, image producers or image providers, and the like. A logo may be displayed at a constant position in an image for a long t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09G3/3208
CPCG09G3/3208G09G2320/043G09G3/2007G09G2320/0233G09G2310/0275G09G2320/046G09G2320/0686G09G2320/0271G09G3/2081G09G2320/062G09G2320/048G09G2320/04
Inventor 崔银津徐源珍片奇铉
Owner SAMSUNG DISPLAY CO LTD
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