Display device and method for controlling brightness thereof

A display device, brightness technology, applied in static indicators, cathode ray tube indicators, instruments, etc., can solve problems such as image quality degradation

Active Publication Date: 2016-04-13
LG ELECTRONICS INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

A simple method for reducing the brightness of the screen can reduce power consumption, but the image quality may be degraded

Method used

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  • Display device and method for controlling brightness thereof
  • Display device and method for controlling brightness thereof
  • Display device and method for controlling brightness thereof

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Embodiment Construction

[0035] A display device according to an exemplary embodiment of the present invention includes: an average picture level (APL) calculator configured to calculate an APL of an input image and output the APL and APL curve data of the input image; a brightness adjuster, The brightness adjuster includes two brightness adjustment units, which are activated in response to user input through the user interface, the brightness adjuster adjusts the APL curve data; a data modulator configured to be used in Data of the brightness modulation input image defined in the APL curve data adjusted by the brightness modulator; and a display panel driving circuit configured to write the data from the data modulator on the display panel and on the display panel Reproduces the input image.

[0036] pattern of invention

[0037] Reference will now be made in detail to embodiments of the invention, examples of which are illustrated in the accompanying drawings. Wherever possible, the same reference...

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Abstract

The present invention relates to a display device and a method for controlling the brightness thereof, the display device comprising: an average picture level (APL) calculator for calculating the APL of an input image and outputting the APL of the input image with APL curve data; a brightness adjuster, for adjusting the APL curve data, including two or more brightness adjustment parts enabled in response to a user input inputted through a user interface; a data modulator for modulating data of the input image at the brightness defined in the APL curve data adjusted by the brightness adjuster; and a display panel drive circuit for reproducing the input image on the display panel by writing the data from the data modulator on the display panel.

Description

technical field [0001] Embodiments of the present invention relate to a display device and a method for controlling brightness of the display device. Background technique [0002] Examples of flat panel displays include liquid crystal displays (LCDs), plasma display panels (PDPs), organic light emitting displays, and electrophoretic displays (EPDs). The liquid crystal display displays images by controlling an electric field applied to liquid crystal molecules based on data voltages. With the development of processing technology and driving technology, active matrix liquid crystal display has the advantages of reducing production cost and improving performance. Thus, active matrix liquid crystal displays are the most widely used display devices, being applied to almost all display devices including small mobile devices and large televisions. [0003] Since an organic light emitting display is a self-emitting device, it has the advantages of low power consumption and a thinn...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09G3/3225G09G5/10
CPCG09G3/3233G09G2300/0842G09G2320/0242G09G2320/0261G09G2320/0606G09G2320/0626G09G2320/0666G09G2330/021G09G2354/00G09G2360/144G09G2360/16G09G5/10G09G3/32G09G3/3648G09G3/3208G09G3/3225
Inventor 朴成振
Owner LG ELECTRONICS INC
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