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Integrated touch control liquid crystal display and manufacturing method thereof

A liquid crystal display and display technology, which is applied in the input/output process of instruments, electrical digital data processing, and data processing, etc. The effect of reducing coupling effect and improving quality

Inactive Publication Date: 2017-01-11
中航华东光电有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This will lead to interference between the touch signal and the display signal; at the same time, due to the increase of the metal layer required for the touch signal, it will lead to a decrease in the transmittance of the backlight.

Method used

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  • Integrated touch control liquid crystal display and manufacturing method thereof
  • Integrated touch control liquid crystal display and manufacturing method thereof
  • Integrated touch control liquid crystal display and manufacturing method thereof

Examples

Experimental program
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Embodiment Construction

[0025] In a display structure, a black matrix (BM) is an opaque portion deposited between patterns of the three primary colors (R, G, B). Its main function is to prevent RGB color mixing and background light leakage to improve display contrast, prevent color mixing and increase color purity. The existing black matrix is ​​still used on the substrate glass, and the resin photoresist containing black dye is used to prepare the black matrix by photolithography.

[0026] Specifically, the liquid crystal display touch includes a color filter, and the BM side of the glass substrate of the color filter integrates a capacitive touch layer. The capacitive touch layer includes metal wires in the X direction, metal wires in the Y direction, an insulating layer between the metal wires in the X direction and the metal wires in the Y direction, and the thickness of the insulating layer is 0.1-5um. The overlapping area of ​​X and Y metal wires forms a plate capacitance. Preferably, the cap...

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Abstract

The invention discloses a liquid touch control display screen, which includes an integrated touch control color filter, and a capacitance touch control layer is arranged on a light-proof part of the color filter. Compared with a current internally installed touch control display structure, the liquid touch control display screen puts the integrated touch control part in the position of the color filter, thus the process is simple, and the coupling effect of a touch control signal and a display signal is reduced so that the qualities of the display and the performance of the touch control are improved, in addition, the output of light is increased and the luminous efficiency is improved.

Description

technical field [0001] The invention relates to the field of liquid crystal display screens with integrated capacitive touch. Background technique [0002] Capacitive touch screen CTP technology uses the current induction of the human body to work. It is to paste a layer of transparent special metal conductive substance on the glass surface. When a finger touches the metal layer, the capacitance of the contact will change, causing the frequency of the oscillator connected to it to change. By measuring the frequency change, the touch position can be determined to obtain information. [0003] CTP is coated with long and narrow electrodes on the four sides of the touch screen to form a low-voltage AC electric field in the conductor. When touching the screen, due to the electric field of the human body, a coupling capacitance will be formed between the finger and the conductor layer, and the current from the electrodes on the four sides will flow to the contacts, and the curre...

Claims

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Application Information

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IPC IPC(8): G06F3/044G06F3/041
Inventor 严光能刘波杨新军赵小珍陈文明
Owner 中航华东光电有限公司
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