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Display

A technology for display devices and display panels, applied in identification devices, lighting devices, static indicators, etc., can solve problems such as photosensitive seizures, and achieve the effects of preventing red flickering, photosensitivity seizures, and adverse effects

Inactive Publication Date: 2008-12-03
SHARP KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] Therefore, in the conventional liquid crystal display device of the field sequential method, there is a problem that people may cause photosensitivity when a red screen is displayed.

Method used

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Embodiment Construction

[0092] FIG. 1 is a block diagram showing the configuration of a liquid crystal display device according to an embodiment of the present invention. The liquid crystal display device 10 shown in FIG. 1 has: a liquid crystal panel 11, a display control circuit 12, a scanning signal line driving circuit 13, a data signal line driving circuit 14, a power supply circuit 15, a switch 16, and three kinds of backlights (backlight for R The source 17r, the backlight for G 17g, and the backlight for B 17b) perform color display of (m×n) pixels. Next, m and n are set to integers of 1 or more.

[0093] As shown in FIG. 1 , the liquid crystal panel 11 includes: (2m×n) sub-pixels (represented by rectangles with R or GB written on them), n scanning signal lines G1-Gn, and 2m data signal lines S11a-Smb. 2m sub-pixels are arranged side by side in the row direction (horizontal direction in the drawing), and n sub-pixels are arranged side by side in the column direction (vertical direction in th...

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Abstract

A liquid crystal panel (11) includes a plurality of R sub-pixels transmitting red light, and a plurality of GB sub-pixels transmitting green and blue light. An R backlight (17r) emits red light continuously whereas a G backlight (17g) emitting green light and a B backlight (17b) emitting blue light intermittently emit light once during the display period of one screen in time bands different from each other. The drive circuit of the liquid crystal panel (11) drives the R sub-pixel based on a video signal (Vr), and drives the GB sub-pixel based on a video signal selected from video signals (Vg, Vb) in response to emission from the G backlight (17g) and the B backlight (17b). Photosensitivity stroke is prevented by preventing flickering of red light. Consequently, a display presenting a bright screen and having no adverse effect on the physical conditions of a person can be obtained.

Description

technical field [0001] The present invention relates to a display device that performs color display, such as a liquid crystal display device. Background technique [0002] Most liquid crystal display devices that perform color display have color filters that transmit light of a specific color for each sub-pixel. However, in the color filter type liquid crystal display device, since most of the light passing through the liquid crystal panel is absorbed by the color filter, there is a problem that the display screen becomes dark. In order to solve this problem, there is known a field sequential liquid crystal display device that performs color display without using a color filter. [0003] Figure 11 It is a block diagram showing the configuration of a conventional field sequential liquid crystal display device. exist Figure 11 Among them, the liquid crystal panel 91 includes (m×n) pixels P, and is driven by a display control circuit 92 , a scanning signal line driving cir...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09G3/36G09F9/30G02F1/133G09G3/20G02F1/1335G09G3/34G02F1/1343F21K99/00
CPCG09G2320/0247G09G2310/0235G09G2300/0452G09G3/3607G09G3/3413
Inventor 林启二镰田健太郎
Owner SHARP KK
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