发明名称 |
LUMINANCE CONTROL DEVICE AND DISPLAY DEVICE COMPRISING THE SAME |
摘要 |
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. |
申请公布号 |
US2017124959(A1) |
申请公布日期 |
2017.05.04 |
申请号 |
US201615299982 |
申请日期 |
2016.10.21 |
申请人 |
LG DISPLAY CO., LTD. |
发明人 |
KIM Hyojin;JANG Suhyuk;KIM Hyejin |
分类号 |
G09G3/3291;G09G3/3266 |
主分类号 |
G09G3/3291 |
代理机构 |
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代理人 |
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主权项 |
1. A luminance control device comprising:
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. |
地址 |
Seoul KR |