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Touch control display device and manufacturing method thereof

A touch display device and display module technology, which is applied in the fields of instruments, electrical digital data processing, and data processing input/output processes, etc., can solve the problems of restricting the development of touch screens, thick thickness, etc.

Inactive Publication Date: 2016-01-06
WGTECH JIANGXI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] With people's pursuit of thinner and lighter electronic products, the current touch screen includes at least two layers of ITO glass and optical glue for bonding, which is relatively thick, which limits the development of touch screens.

Method used

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  • Touch control display device and manufacturing method thereof
  • Touch control display device and manufacturing method thereof

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Experimental program
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Effect test

preparation example Construction

[0033] The method for manufacturing the touch display device includes: preparing a graphene layer by laser evaporation on the color filter substrate of the thin film transistor display module.

[0034] Preferably, the surface resistance of the color filter substrate of the thin film transistor display module is 1×10 8 ~1×10 9 Ω / cm 2 .

[0035] Preferably, the vacuum degree of the coating chamber is 10 -2 Pa~10 -3 Pa, the temperature of the coating chamber is 80 ℃ ~ 100 ℃, the helium gas flow rate is 28 sccm ~ 32 sccm, the base distance is 1150 mm, and the laser beam power density is 104 W / cm 2 ~109W / cm 2 . Base pitch refers to the distance from the crucible to the substrate. In this step, the entire TFT module is put into the laser evaporation coating equipment for sputtering.

[0036] When the vacuum pressure and temperature of the chamber do not reach the preset value, the number of graphene vapor molecules and residual gas molecules reaching the substrate is roughly...

Embodiment 1

[0048] The preparation of the graphene layer of the touch display device of embodiment 1 comprises the following steps:

[0049] (1) Use a cleaning machine to clean the TFT substrate of the TFT module with pure water, lye, BJ spray, DI spray, and high-pressure spray in sequence, clean the dirt and dust on the surface of the substrate, and dry it with cold air and hot air. Static electricity dissipates, check that the surface is free of dirt and dust, and wait for coating.

[0050] (2) Using CO 2 Laser evaporation coating machine coating, the vacuum degree of the coating chamber is 6.5*10 -2 Pa, the temperature of the coating chamber is 100°C, the helium flow rate is 30sccm, the base distance is 1150mm, and the laser beam power density is 104W / cm 2 ~109W / cm 2 , the crucible is a graphite crucible, and the evaporation material is graphene.

[0051] The thickness of the graphene layer measured by a film thickness meter is 26nm.

[0052] The color difference of the graphene l...

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Abstract

The invention relates to a touch control display device and a manufacturing method thereof. The touch control display device comprises a thin film transistor display module. The thin film transistor display module comprises a thin film transistor substrate and a color filter substrate which is arranged at interval with the thin film transistor substrate. The touch control display device also comprises a touch sensitive layer and a grapheme layer connected with the touch sensitive layer through a wire. The touch sensitive layer is laminated on the surface of the thin film transistor substrate. The grapheme layer is evaporated on the surface of the color filter substrate. The touch control display device is relatively thin in thickness.

Description

technical field [0001] The invention relates to a touch display device and a preparation method thereof. Background technique [0002] The touch screen is an important part of touch electronic devices such as touch screen mobile phones, tablet computers, e-books and other electronic devices. The touch screen generally includes a display module and a touch module. The touch module usually includes two layers of ITO glass laminated together, and the two layers of ITO glass are bonded together by optical glue. [0003] With people's pursuit of thinner and lighter electronic products, touch screens currently include at least two layers of ITO glass and optical glue for bonding, which are relatively thick, which limits the development of touch screens. Contents of the invention [0004] Based on this, it is necessary to provide a thinner touch display device and a manufacturing method thereof. [0005] A touch display device, including a thin film transistor display module, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F3/041
Inventor 张迅张伯伦易伟华
Owner WGTECH JIANGXI