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Liquid crystal display panel, device and touch detection method of integrated touch screen

A technology of liquid crystal display panel and liquid crystal display device, which is applied to static indicators, input/output process of data processing, instruments, etc., can solve the problems of complex driving circuit and low light transmittance of display device, and achieves simple implementation and circuit. Some small changes and the effect of high aperture ratio

Active Publication Date: 2010-06-16
SHANGHAI TIANMA MICRO ELECTRONICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The invention provides a liquid crystal display panel integrated with a touch screen, a device and a touch detection method, so as to improve the phenomenon that the light transmittance of the existing display device with a touch input function is low and the driving circuit is relatively complicated

Method used

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  • Liquid crystal display panel, device and touch detection method of integrated touch screen
  • Liquid crystal display panel, device and touch detection method of integrated touch screen
  • Liquid crystal display panel, device and touch detection method of integrated touch screen

Examples

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no. 1 example

[0045] The first embodiment of the present invention introduces a liquid crystal display panel integrated with a touch screen. figure 2 It is a schematic cross-sectional view of a liquid crystal display panel integrated with a touch screen in the first embodiment of the present invention, image 3 It is a schematic diagram of a pixel unit of a liquid crystal display panel integrated with a touch screen in the first embodiment of the present invention, combined below figure 2 with image 3 The structure of the touch screen-integrated liquid crystal display panel in the first embodiment of the present invention will be described in detail.

[0046] Such as figure 2 with image 3 As shown, the liquid crystal display panel with integrated touch screen in the first embodiment of the present invention includes a first substrate 100 and a second substrate 200 . The structure of the first substrate 100 from bottom to top is as follows: a lower glass substrate 1, scanning lines 9,...

no. 2 example

[0061] The second embodiment of the present invention introduces a liquid crystal display device having the touch screen integrated liquid crystal display panel of the present invention. Figure 4 It is an equivalent schematic diagram of a liquid crystal display device integrated with a touch screen in the second embodiment of the present invention, Figure 5 It is a schematic diagram of an equivalent circuit of a liquid crystal display device integrated with a touch screen in the second embodiment of the present invention, combined below Figure 2 to Figure 5 The liquid crystal display device integrated with a touch screen in the second embodiment of the present invention will be described in detail.

[0062] Such as Figure 4 with Figure 5 As shown, the display device in the second embodiment of the present invention includes a liquid crystal display panel 300 , a driving circuit (not shown in the figure) and a touch detection circuit 400 . The liquid crystal display pan...

no. 3 example

[0080] The third embodiment of the present invention introduces a touch detection method that can be realized by using the touch screen integrated liquid crystal display device of the present invention. Image 6 It is a schematic diagram of the working principle of the display device integrated with the touch screen in the third embodiment of the present invention, Figure 7 It is a schematic flow chart of the touch detection method in the third embodiment of the present invention, combined below Figure 2 to Figure 7 The touch detection method in the third embodiment of the present invention is introduced in detail.

[0081] In this embodiment, the touch detection method that can be used for a liquid crystal display device integrating a touch screen includes steps:

[0082] Step 701: Send a scan signal to each pixel unit in a corresponding row by using a scan line.

[0083] Such as Image 6 As shown, scanning signals 31 , 32 , 33 , 34 and 35 are sent to each pixel unit in ...

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Abstract

The invention discloses a liquid crystal display panel of an integrated touch screen. The liquid crystal display panel comprises a first substrate and a second substrate, wherein the first substrate is provided with a lower glass substrate, a scanning line, a data line and a pixel electrode; the second substrate is provided with an upper glass substrate; moreover, a touch-control induction electrode connected with the scanning line of a pixel unit is arranged near the pixel electrode; and a plurality of conductive bulges are distributed between the first substrate and the second substrate, and can move towards the first substrate along with the pressing exerted on the conductive bulges to be contacted with the pixel electrode and the touch-control induction electrode in the pixel unit corresponding to the pressing position on the first base substrate. The invention also discloses a display device with the liquid crystal display panel of the integrated touch screen and a corresponding touch detection method. The liquid crystal display panel, the device and the touch detection method of the integrated touch screen can make use of existing data lines and scanning lines to detect a touch position.

Description

technical field [0001] The invention relates to the technical field of liquid crystal display, in particular to a liquid crystal display panel integrated with a touch screen, a device and a touch detection method. Background technique [0002] With the rapid development of electronic technology, many electronic instruments already have light-transmitting touch screens mounted in front of display elements such as LCDs (Liquid Crystal Displays, liquid crystal displays). On the above electronic instrument, the user can input required information through the touch screen to control the electronic instrument. This method reduces the need for other types of input devices (keyboard, mouse or remote controller, etc.), and makes the operation easier. [0003] At present, most of the displays with touch input function are manufactured separately from the touch screen and the display panel, and assembled together. Taking the commonly used resistive touch screen as an example, briefly...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02F1/133G06F3/041
Inventor 陈悦邱承彬
Owner SHANGHAI TIANMA MICRO ELECTRONICS CO LTD