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Capacitive touch liquid crystal display panel

A technology of liquid crystal display panels and display panels, which is applied in the fields of electrical digital data processing, instruments, calculations, etc., can solve problems such as touch failure, achieve the goals of reducing background noise, improving picture display quality and light transmittance, and improving signal-to-noise ratio Effect

Active Publication Date: 2014-01-22
SHANGHAI TIANMA MICRO ELECTRONICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In view of this, the object of the present invention is to provide a capacitive touch liquid crystal display panel, to solve the phenomenon of touch failure in the existing liquid crystal display panel with touch function

Method used

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  • Capacitive touch liquid crystal display panel

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Embodiment Construction

[0034] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0035] As mentioned in the background art, the existing liquid crystal display panel with touch function may experience touch disorder, which reduces the touch effect.

[0036] The inventors have found through research that in order to pursue a higher response speed, the existing liquid crystal display panels driven by IPS or FFS generally us...

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Abstract

The invention discloses a capacitive touch liquid crystal display panel. The capacitive touch liquid crystal display panel adopts an IPS / FFS drive mode, and comprises a first substrate, a second substrate which is arranged opposite to the first substrate, a liquid crystal layer arranged between the first substrate and the second substrate, and a capacitive touch unit arranged on the surface of the first substrate and facing towards one side of the liquid crystal layer, wherein the liquid crystal layer is composed of liquid crystal molecules of which the dielectric anisotropy value delta epsilon is not more than 7. When the capacitive touch liquid crystal display panel works, the permittivity of the liquid crystal layer does not change, the stray capacitance does not change either, and therefore substrate noise of the capacitive touch unit caused by changes of the stray capacitance is lowered, and then the phenomenon of touch failure is avoided.

Description

technical field [0001] The invention belongs to the field of liquid crystal display, in particular to a capacitive touch liquid crystal display panel. Background technique [0002] As an input medium, the touch screen is currently the simplest, most convenient and natural way of human-computer interaction. Therefore, touch screens are more and more applied to various electronic products, such as mobile phones, notebook computers, MP3 / MP4, and the like. According to the different working principles and the detection of touch information media, touch screens can be divided into four types: resistive, capacitive, infrared and surface acoustic wave. Capacitive touch screen technology has become the current mainstream touch screen technology due to its simple process, long product life, and high light transmittance. [0003] In order to reduce the cost of various electronic equipment and make various electronic equipment thinner and lighter, usually the touch screen is integrat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02F1/1333G06F3/044
CPCG06F3/044G06F3/0416G02F1/133G02F1/1333G02F1/13338G02F1/139G06F3/04166G06F3/0445G06F3/0446
Inventor 马骏王丽花
Owner SHANGHAI TIANMA MICRO ELECTRONICS CO LTD
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