公开(公告)号：US10062324B2

公开(公告)日：2018-08-28

申请号：US15299982

申请日：2016-10-21

Applicant: LG DISPLAY CO., LTD.

Inventor： Hyojin Kim ,  Suhyuk Jang ,  Hyejin Kim

IPC: G09G3/3291 ,  G09G3/3225

CPC classification number: G09G3/3225 ,  G09G2300/0452 ,  G09G2320/041 ,  G09G2320/045 ,  G09G2320/0626 ,  G09G2360/16

Abstract: A display device is disclosed in which a luminance control device includes a temperature sensor that detects a temperature of a display device; an average picture level part that calculates an average picture level, which defines an average brightness of an image input into the display device; and a luminance control part that generates a temperature-dependent peak luminance, which varies with temperature and average picture level, based on a top gain curve defining how a maximum luminance decreases as the temperature of the display device rises and a bottom gain curve defining how a minimum luminance decreases as the temperature of the display device rises, wherein the luminance control part fixes the temperature-dependent peak luminance at a specific luminance level, regardless of changes in average picture level, at a specific temperature in a high-temperature range which is higher than a room-temperature range.