公开(公告)号：KR1020050023232A

公开(公告)日：2005-03-09

申请号：KR1020047012172

申请日：2003-04-25

Applicant: 한국전자통신연구원

Inventor： 장래혁 ,  김재준 ,  남제호 ,  홍진우 ,  김진웅 ,  조남익 ,  김형중 ,  김만배 ,  김인철 ,  김해광

IPC: G02F1/133

CPC classification number: G09G3/3406 ,  G09G2320/0606 ,  G09G2320/0626 ,  G09G2320/0646 ,  G09G2320/066 ,  G09G2330/021

Abstract: PURPOSE: An apparatus and a method for controlling an LCD(Liquid Crystal Display) backlight and processing image signal are provided to make it possible to reduce the power consumption of an end user terminal having an LCD panel without lowering of brightness and contrast of image, by adapting brightness and contrast of the image signal based on the adjusted backlight intensity information. CONSTITUTION: An apparatus for controlling an LCD backlight and processing image signal comprises the first unit for generating backlight intensity information and the second unit(100) for controlling brightness and contrast of an image signal. The first unit generates backlight intensity information, adjusted for reducing the power consumption of an end user terminal having an LCD panel. The second unit adapts brightness and contrast of the image signal based on the adjusted backlight intensity information and displays the adapted image signal on the LCD. The apparatus makes a user experience image display with undamaged quality by adapting brightness or contrast of the image signal into high-level based on the adjusted backlight intensity information, and simultaneously, reduces the power consumption of the end user terminal.

Abstract translation: 目的：提供一种用于控制LCD（液晶显示器）背光和处理图像信号的装置和方法，以使得可以降低具有LCD面板的终端用户终端的功耗而不降低图像的亮度和对比度， 通过基于所调整的背光强度信息调整图像信号的亮度和对比度。 构成：用于控制LCD背光和处理图像信号的装置包括用于产生背光强度信息的第一单元和用于控制图像信号的亮度和对比度的第二单元（100）。 第一单元产生用于降低具有LCD面板的终端用户终端的功耗的背光亮度信息。 第二单元基于调整后的背光强度信息来适应图像信号的亮度和对比度，并在LCD上显示适合的图像信号。 该装置通过基于调整后的背光强度信息将图像信号的亮度或对比度适应为高电平，使得用户体验未损坏的图像显示，同时降低终端用户终端的功耗。