Display unit, drive method for display unit, electronic apparatus mounting display unit thereon

A display device and driver technology, applied in static indicators, instruments, nonlinear optics, etc., can solve problems that are difficult to realize, not put into practical use, and can not take into account low power consumption and high display quality, etc., to achieve low power consumption Effect

Inactive Publication Date: 2009-07-01
SHARP KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Therefore, there is a disadvantage of increasing the cost due to the increase in the size of the peripheral circuit
[0023] In the method disclosed in Japanese Patent Application Laid-Open No. 6-342148, since the ferroelectric liquid crystal is basically a value (black and white) display, color tone display cannot be performed, and natural images cannot be displayed. Requires advanced plate making technology, so it is difficult to realize, and has not been put into practical use so far
[0024] In this way, the existing driving methods for matrix liquid crystal display devices cannot easily achieve sub-low power consumption while satisfying basic display qualities such as brightness, contrast, response speed, and gray scale.
Moreover, the above-mentioned existing matrix-type liquid crystal display device activation method cannot take into account sufficient low power consumption and flicker-free high display quality.

Method used

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  • Display unit, drive method for display unit, electronic apparatus mounting display unit thereon
  • Display unit, drive method for display unit, electronic apparatus mounting display unit thereon
  • Display unit, drive method for display unit, electronic apparatus mounting display unit thereon

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Embodiment Construction

[0098] The best way to practice the invention

[0099] Embodiment 1

[0100] according to Figure 1 to Figure 1 1 Description of a display device according to an embodiment of the present invention is as follows.

[0101] First of all, according to the investigation of the applicant of this case, it is found that when the rewriting frequency is set to a low frequency below 30 Hz to drive the liquid crystal display device with the gate Cs structure, the reasons for display flickering are as follows.

[0102] In a liquid crystal display element with an active element, when the auxiliary capacitor electrode of the pixel is in the form of "on the gate Cs" on the scanning signal line above the pixel row, the scanning signal is applied to the scanning signal line above the row At this time, the pixel electrode potential of the pixel fluctuates greatly. Usually, when the rewriting frequency is above 30Hz, the response of the liquid crystal molecules caused by the potential change ...

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PUM

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Abstract

The liquid crystal panel (2) has a scanning signal line (31) for supplying a scanning signal to a gate (20) of a TFT (14), and a data signal line (32) for supplying a data signal to a data electrode (24) of the TFT. The liquid crystal panel is also provided with electrode pads (27a) for auxiliary capacitors and auxiliary capacitor wirings (33) forming auxiliary capacitors so as not to introduce capacitive coupling with scanning signal lines. Furthermore, the liquid crystal panel is driven at a screen rewriting frequency of 30 Hz or less. As a result, the liquid crystal panel can be driven with low power consumption while still maintaining good quality.

Description

[0001] This application is a divisional application of the invention patent application filed by the applicant on April 24, 2001, with the application number "01812023.7" and the invention title "display device, display device driving method, and electronic equipment equipped with display device" . technical field [0002] The present invention relates to low power consumption of a display device. Background technique [0003] In recent years, the application of liquid crystal display devices to word processors, laptop personal computers, pocket televisions, etc. has been rapidly developed. In particular, among liquid crystal display devices, reflective liquid crystal display devices that display by reflecting external incident light do not require a backlight, consume less power, are thin, and can be reduced in weight, attracting attention. [0004] Existing reflective liquid crystal display devices can be roughly divided into: for clocks and watches, the pen segment displ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02F1/133G02F1/1368G09G3/36
Inventor 津田和彦清水雅宏中村久和熊田浩二太田隆滋亀崎豐
Owner SHARP KK
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