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Browse Prior Art Database

Auto white balance control of LCD Panel

IP.com Disclosure Number: IPCOM000013652D
Original Publication Date: 2000-Mar-01
Included in the Prior Art Database: 2003-Jun-18
Document File: 1 page(s) / 86K

Publishing Venue

IBM

Abstract

Disclosed is an auto white balance control of LCD panel. The problem that the color of LCD panel is displayed unnaturally·by outside light is solved by auto white balance control. Therefore the color of panel is displayed naturally. The system consists of white sensor, color management function, and LCD display. The color temperature of outside light is measured by White sensor 2 on LCD panel module 1(see Fig.1). The white sensor can be external setting and internal setting. The white sensor in LCD Cell is sensed on each RGB color of CCD 3 by using color filter 5 of LCD Cell, and measures color temperature of the outside light (see Fig.2). LCD display color is tuned to any white balance by the color management function from white sensor measurement. ②外光センサー ① ①LCDパネル LCD Panel

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Auto white balance control of LCD Panel

   Disclosed is an auto white balance control of LCD panel. The problem that the
color of LCD panel is displayed unnaturally·by outside light is solved by auto
white balance control. Therefore the color of panel is displayed naturally. The
system consists of white sensor, color management function, and LCD display. The
color temperature of outside light is measured by White sensor 2 on LCD panel
module 1(see Fig.1). The white sensor can be external setting and internal
setting. The white sensor in LCD Cell is sensed on each RGB color of CCD 3 by
using color filter 5 of LCD Cell, and measures color temperature of the outside
light (see Fig.2). LCD display color is tuned to any white balance by the color
management function from white sensor measurement.

②外光センサー

� LCDパネル

LCD Panel

White sensor

Fig. 1 White sensor built in PC

④ Glass

⑤ C olor filter

③CCD

ガラス Black Matrix (BM)

Matrix

                Fig. 2 White sensors in LCD cell

1

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