Liquid crystal display and electonic apparatus

A technology of liquid crystal display devices and electronic devices, which is applied in the directions of identification devices, static indicators, optics, etc., and can solve the problems of high-precision liquid crystal display devices, difficulty, and decrease in aperture ratio.

Inactive Publication Date: 2004-10-06
SHARP KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, in the liquid crystal display device of Patent Document 1, it is necessary to switch and supply the driving voltage to two pixel areas in one pixel.
Therefore, it is very difficult to switch the driving voltage using the existing wiring. In order to avoid this, when a switch or wiring for switching the driving voltage is provided separately, a part of the pixel may be covered by the switch or wiring. property, so there is a problem that causes the aperture ratio to decrease
[0005] In addition, since 1 pixel consists of 2 pixel areas, there will be a problem that it is difficult to achieve high-definition liquid crystal display devices.

Method used

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  • Liquid crystal display and electonic apparatus
  • Liquid crystal display and electonic apparatus
  • Liquid crystal display and electonic apparatus

Examples

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Embodiment Construction

[0041] An embodiment of the present invention is described below. In addition, in this embodiment, a liquid crystal display device adopting a CPA (Continuous Pinwheel Alignment: Continuous Pinwheel Alignment) mode as a liquid crystal display mode will be described.

[0042] Such as figure 1As shown, the liquid crystal display device 1 related to the present embodiment is provided with: a driving signal generating unit 2, a LUT (Look Up Table: look-up table) 3, a driving voltage generating unit 4, a source driving circuit 5, a gate driving circuit 6, a liquid crystal The panel (display panel) 7 has an active matrix type structure.

[0043] The driving signal generator 2 is a circuit for generating a driving signal for operating the source driver circuit 5 and the gate driver circuit 6 based on image data. The generated signals are output to the source driver circuit 5 and the gate driver circuit 6, respectively.

[0044] The above-mentioned LUT 3 is a means for storing a con...

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Abstract

A liquid crystal display device of the present invention includes: a liquid crystal panel, when both of transmittance at the front and transmittance at an oblique viewing angle are 1 in white display, having such display characteristics that transmission intensity at the oblique viewing angle is larger than transmission intensity at the front; and a drive voltage setting section (LUT and drive voltage generation section) which sets a drive voltage to activate the liquid crystal panel and supplies the set drive voltage to the liquid crystal panel. The drive voltage setting section (LUT and drive voltage generation section) sets a drive voltage in accordance with viewing angle characteristics of the liquid crystal panel, thereby controlling viewing angle characteristics. With this arrangement, it is possible to provide a simply-structured liquid crystal display device capable of displays with high definition without decrease in aperture ratios.

Description

technical field [0001] The present invention relates to a liquid crystal display device capable of switching between a wide viewing angle characteristic and a narrow viewing angle characteristic, and an electronic device including the liquid crystal display device. Background technique [0002] A liquid crystal display device capable of utilizing the viewing angle characteristics of liquid crystals and switching the viewing angle characteristics of the display screen as required is described in, for example, patent documents (Japanese Laid-Open Patent Publication: Japanese Laid-Open No. 10-153968 (published on June 9, 1998)) Make it public. [0003] In the liquid crystal display device disclosed in Patent Document 1, in order to switch between wide viewing angle characteristics and narrow viewing angle characteristics, one pixel is divided into two pixel regions and the same driving voltage is supplied to the two pixel regions to make the oblique viewing angle The gradation...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02F1/133G02F1/139G09F9/35G09G3/00G09G3/36
CPCG09G2320/068G09G2320/028G02F1/1393G09G2320/0606G02F1/1323G09G3/3648G02F1/133
Inventor 久保真澄
Owner SHARP KK
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