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LCD display device with built-in touch

A liquid crystal display device, touch technology, applied in the input/output process of data processing, optics, instruments, etc., can solve the problems of complex driving circuit, low pixel aperture ratio, and difficulty in applying large-size panels, etc., to improve the pixel aperture. efficiency, simplifying the effect of the touch drive circuit

Active Publication Date: 2017-01-25
TCL CHINA STAR OPTOELECTRONICS TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] In view of the low pixel aperture ratio of the in-cell (In-Cell) touch technology in the prior art, it is difficult to apply to large-size panels, and the touch drive circuit is quite complicated, etc., the present invention solves the problems of the prior art. Push-capacitive built-in touch controls have been improved

Method used

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  • LCD display device with built-in touch
  • LCD display device with built-in touch
  • LCD display device with built-in touch

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Embodiment Construction

[0041] Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

[0042] First refer to Figure 5 . Figure 5 A cross-sectional view of the liquid crystal display device with built-in touch according to the present invention along the normal direction of the panel is shown.

[0043] Depend on Figure 5It can be seen that the liquid crystal display device with built-in touch according to the present invention includes an array substrate 22 , a color filter substrate 21 opposite to the array substrate 22 , and a liquid crystal layer 24 located between the array substrate 22 and the color filter substrate 21 .

[0044] Figure 4 A schematic structural view of a liquid crystal display device with built-in touch according to the present invention is shown.

[0045] refer to Figure 4 , it can be further seen that first scanning lines 12 and data lines 11 intersecting vertically and horizontally are provided on the array substr...

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Abstract

A built-in touch liquid crystal display device, related to the technical field of liquid crystal displays. The device is provided with a touch sensing line and, in at least some pixel units, is provided with a touch capacitor corresponding to at least one of the pixel subunits and with a touch switch located between the touch capacitor and the touch sensing line and capable of connecting or disconnecting the two, where a voltage difference of the touch capacitor can be transmitted to the touch sensing line. This is an improvement over an existing touch capacitive built-in touch device, solves a shortcoming currently found in this type of devices, increases pixel aperture ratio, allows application of touch capacitive built-in touch technology to large-sized panels, and simplifies a touch driver circuit.

Description

technical field [0001] The invention relates to the technical field of liquid crystal display, in particular to a liquid crystal display device with built-in touch control. Background technique [0002] The development direction of touch technology includes goals such as low cost, high yield, large size, and high reliability. [0003] In order to achieve these goals, in terms of process technology, the indium tin oxide sensor (ITO Sensor) can be integrated with the cover glass (Cover lens), and even the thin film transistor (TFT) can be integrated together to reduce production costs and make the product thickness Thinning can avoid the problem of bad fit. [0004] In terms of material technology, organic or inorganic alternative materials for indium tin oxide (ITO) can be developed, flexible thin film and substrate technology can be developed, or new plastic materials can be used to replace more expensive strengthened glass on the cover glass (Cover lens) material or polym...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02F1/1333G06F3/041
CPCG02F1/13338G06F3/0412G06F3/0445G06F3/0446G06F3/0447
Inventor 徐向阳
Owner TCL CHINA STAR OPTOELECTRONICS TECH CO LTD