Embedded touch-screen LCD (liquid crystal display) device and control method

A liquid crystal display device, touch screen technology, applied in static indicators, instruments, computing and other directions, can solve the problem of insufficient touch signal, and achieve the effects of increasing mutual capacitance, improving performance, and improving signal-to-noise ratio.

Active Publication Date: 2011-06-29
SHANGHAI TIANMA MICRO ELECTRONICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0012] The invention solves the problem that the touch signal of

Method used

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  • Embedded touch-screen LCD (liquid crystal display) device and control method
  • Embedded touch-screen LCD (liquid crystal display) device and control method
  • Embedded touch-screen LCD (liquid crystal display) device and control method

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Example Embodiment

[0026] Based on the defect that the touch signal of the prior art touch screen structure is not strong enough, the in-cell touch screen liquid crystal display device of the present invention increases the capacitance change when being touched by providing a capacitance correlation structure to enhance the touch signal generated when facing a touch.

[0027] Various embodiments of the in-cell touch screen liquid crystal display device of the present invention will be described in detail below with reference to the accompanying drawings.

[0028] Reference Image 6 As shown, the first embodiment of the in-cell touch screen liquid crystal display device of the present invention includes:

[0029] The upper substrate 27, the color filter 28 on the upper substrate 27, and the common electrode layer on the color filter 28;

[0030] The lower substrate 33, the thin film transistor layer 32 on the lower substrate 33, and the pixel electrode layer on the thin film transistor layer 32;

[0031] A...

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PUM

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Abstract

The invention provides an embedded touch-screen LCD device and a control method. The embedded touch-screen LCD device comprises an upper baseplate, a common electrode layer arranged on the upper baseplate, a lower baseplate, a pixel electrode layer on the lower baseplate, and liquid crystal layers between the common electrode layer and the pixel electrode layer, wherein the common electrode layercomprises a drive electrode and an induction electrode arranged opposite to the drive electrode; the pixel electrode layer comprises pixel electrodes and a touch-control electrode arranged between the pixel electrodes; and the touch-control electrode has mutually directly-facing part with both the drive electrode and the induction electrode. The embedded touch-screen LCD device has strong touch-control signal when being about to be touched and controlled, so that the signal-to-noise ratio is improved, and the performance of the touch screen is improved.

Description

technical field [0001] The invention relates to the field of liquid crystal display technology, in particular to an embedded touch screen liquid crystal display device and a control method. Background technique [0002] In touch screen technology, compared with resistive touch screens, capacitive touch screens have the advantages of long life, high light transmittance, and support for multi-point touch. Moreover, the capacitive touch screen also has a good suppression effect on noise and ground parasitic capacitance. Therefore, capacitive touch screens have become one of the hot spots in touch screen manufacturing today. [0003] refer to figure 1 As shown, a capacitive touch screen in the prior art includes: a glass substrate 9, a driving electrode layer 1 on the glass substrate 9, a dielectric layer 10 on the driving electrode layer 1, a sensing electrode layer 2 on the dielectric layer 10, and The protective layer 11 on the sensing electrode layer 2 . [0004] refer t...

Claims

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Application Information

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IPC IPC(8): G02F1/133G02F1/1368G06F3/044
Inventor 陈悦王丽花邱承彬
Owner SHANGHAI TIANMA MICRO ELECTRONICS CO LTD
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