Active matric-type display device and its controller

A display device, active matrix technology, applied in static indicators, cathode ray tube indicators, optics, etc., can solve problems such as insufficient rendering speed

Inactive Publication Date: 2003-03-05
SANYO ELECTRIC CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, it is necessary to temporarily store the image data in the frame memory 25. Since this storage operation takes time, the rendering speed is not fast enough when displaying animation.

Method used

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  • Active matric-type display device and its controller
  • Active matric-type display device and its controller
  • Active matric-type display device and its controller

Examples

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Embodiment Construction

[0021] figure 1 A display device according to an embodiment of the present invention is shown. Those whose structure is the same as that of the prior art will be given the same number and will not be described again. The liquid crystal panel 100 of this embodiment is completely the same as the prior art. However, in the control circuit 200 of this embodiment, the data processing element 21 and the frame memory 25 are arranged at the same time, and the selector 27 that can select and switch these outputs is provided, and the point that the display is switched between the animation mode and the static mode is different. in the past. In the animation mode, for the image signal input at any time, the brightness (brightness) and contrast (contrast) are adjusted by the data processing element 21, and the gray scale (gamma correction) is corrected, so as to generate the most suitable signal for the liquid crystal panel 100 at any time. The signal is output to the liquid crystal p...

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PUM

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Abstract

This invention is directed to the active matrix display device with an imaging speed rapid enough for the moving image display and the small power consumption. A selector (27) makes the switch between the moving image mode, where the image signal consecutively inputted is consecutively displayed after the certain processing is performed by a data processing unit (21) and the still image mode, where the display is made based on the image signal stored in a frame memory (25). The messy display upon the switching between the modes can be prevented by differentiating the switching timing of the still to moving image mode from that of the moving to still image mode, improving the display quality.

Description

technical field [0001] The present invention relates to a display device capable of switching between an animation mode in which an image signal input at any time is displayed at any time, and a static mode in which an image signal stored in a frame memory is displayed. Background technique [0002] In recent years, with the popularization of personal information terminal devices (PDA) such as mobile phones and notebook computers, display devices with low power consumption such as liquid crystal display devices (LCD) or electroluminescence (Electro luminescence; EL ) display devices and the like are widely used. [0003] Figure 4 It is an illustration of a conventional display device, which represents an active matrix LCD. The active matrix display device is configured by connecting a control circuit 200 to a liquid crystal panel (panel) 100 . [0004] A liquid crystal panel (panel) 100 is configured by sealing liquid crystal between a first substrate on which a plurality...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02F1/133G09G3/20G09G3/36G09G5/12G09G5/39
CPCG09G3/3648G09G2360/18G09G2330/021G09G2300/08G09G2320/10G09G5/12G09G3/2092G09G5/39G02F1/133
Inventor 北川诚小林贡藤冈诚
Owner SANYO ELECTRIC CO LTD
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