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Light sensed touch controlled type liquid crystal display

A technology of liquid crystal display and light sensor, which is applied in the direction of static indicators and instruments, and can solve the problems of increasing product volume and not being suitable for portable liquid crystal displays.

Active Publication Date: 2008-08-13
AU OPTRONICS CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although such a design will not reduce the light transmittance of the panel, it will greatly increase the volume of the product, so it is not suitable for the needs of general portable LCD displays.

Method used

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  • Light sensed touch controlled type liquid crystal display
  • Light sensed touch controlled type liquid crystal display
  • Light sensed touch controlled type liquid crystal display

Examples

Experimental program
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Effect test

Embodiment Construction

[0025] see figure 1 , figure 1 is a schematic diagram of the liquid crystal display 100 of the present invention. The liquid crystal display 100 includes a light source 130 , a gate driver 102 , a source driver 104 , a determination unit 106 and a liquid crystal display panel 110 . The above-mentioned components are all wrapped in a casing (not shown in the figure). The gate driver 102 is used to generate a scan signal and transmit it to the LCD panel 110 through the scan line 112 . The source driver 104 is used to generate a data signal voltage and transmit it to the LCD panel 110 through the data line 114 . The judging unit 106 is coupled to the liquid crystal display panel 110 through the transmission line 116 and used for detecting the position where the liquid crystal display panel 110 is pressed. The light source 130 can be a cold cathode ray tube for generating the backlight required by the liquid crystal display panel 110 .

[0026] Please also refer to Figure 2, ...

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PUM

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Abstract

A liquid crystal display of light sensing and touch control type is prepared as setting the second base plate in parallel to and in facing to the first base plate, setting multiple pixel units between two said base plates, setting light reflection element on the first base plate and light sensor on the second one, using light sensor to output a sensing parameter according to light reflected from back light module by light reflection element, using variation of sensing parameter value to judge pixel unit position corresponding to place exerted by external force when external force is exerted on the first base plate.

Description

technical field [0001] The invention relates to a liquid crystal display, in particular to a touch-sensitive liquid crystal display. Background technique [0002] Displays with advanced functions have gradually become an important feature of today's consumer electronics products. Liquid crystal displays have gradually become widely used in various electronic devices such as mobile phones, personal digital assistants (PDAs), digital cameras, computer screens or notebook computer screens. monitor with high resolution color screen. [0003] Since the current liquid crystal display is convenient to carry and use, the touch-sensitive liquid crystal display panel that the user can directly touch has also become the direction of market development. In traditional resistive or capacitive touch liquid crystal display panels, additional resistive and capacitive components are arranged on the panel, and the position coordinates of the touch pressure are determined by detecting the cha...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02F1/133G09G3/36
Inventor 吴政芳曹正翰陈彦廷黄乙白张庭瑞
Owner AU OPTRONICS CORP