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Touch display screen with high-strength corners

A touch display, high-strength technology, applied in the input/output process of data processing, instruments, electrical digital data processing, etc., can solve the problem of UV light energy attenuation, full-fit OCA, low viscosity, and can not be fully-fitted OCA is completely cured and other problems to achieve the effect of improving adhesive strength and preventing separation

Pending Publication Date: 2021-03-19
牧东光电科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when the UV light with energy E0 is irradiated on the edge area of ​​the touch screen TM, the UV light passes through the cover CG, CG ink, adhesive, capacitive sensing layer, fully bonded OCA, liquid crystal display module, and the UV light Due to the CG black ink, the black ink has an absorption effect on the UV light, resulting in a large attenuation of the energy of the UV light. When the UV light reaches the fully laminated OCA surface, the energy E2 of the UV light is small, and E2<<E0, not possible Allows full-fit OCA to fully cure, resulting in less tacky edge-fit OCA

Method used

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  • Touch display screen with high-strength corners
  • Touch display screen with high-strength corners
  • Touch display screen with high-strength corners

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] refer to Figure 1-2 , a high-strength corner touch display screen, including a cover plate 1, an ink layer 2, an adhesive 3, a capacitive sensing layer 4, a full-fit OCA5 and a liquid crystal display module 6, the cover plate 1, the ink layer Layer 2, adhesive 3, and capacitive sensing layer 4 form a touch screen TP7, and the touch screen TP7 and the liquid crystal display module 6 form a touch screen 8 after being bonded by the full lamination OCA5. The four corners of the screen 8 increase UV side curing.

[0027] Further, the cover plate 1 is made of any one of glass material, PET material, 2.5D, and 3D cover plate, and PC, PMMA, and TAC materials cannot be used, because these PC and other materials have a blocking effect on UV light, When the UV light reaches the surface of the cover, it will be blocked by the PC material. The UV-type full-bonded OCA cannot receive UV light, so that the fully-bonded OCA in the visible area and the ink area of ​​the touch screen ca...

Embodiment 2

[0037] refer to Figure 5 , a high-strength corner touch screen UV curing method 2. This curing method requires 4 UV curing lamps to be fixed on the four corners respectively. The curing process does not need to move the UV curing lamp. The shape of the UV curing lamp is L-type, both directions of L-type can emit UV light, and irradiate two sides of the four corners at the same time.

Embodiment 3

[0039] refer to Image 6 , a high-strength corner touch screen UV curing method 3, this curing method only needs 1 UV curing lamp, the shape of the UV curing lamp is a straight shape, and only one direction can emit UV light. Fix the UV curing lamp on one side 11 of the first corner of the touch display screen for light curing; after UV irradiation is completed, move the horizontal screw 16 to move the UV curing lamp to the other side 12 of the first corner for curing. Illumination curing; after completing the UV irradiation, move the horizontal screw 16 to move the UV curing lamp to one side 21 of the second corner for light curing; after completing the UV irradiation, move the horizontal screw 16 to move the UV curing lamp to the second side 22 places on the other side of the corner for light curing; after UV irradiation is completed, move the horizontal screw 16 to move the UV curing lamp to one side 31 of the third corner for light curing; after completing the UV irradiati...

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Abstract

The invention discloses a touch display screen with high-strength corners, which comprises a cover plate, an ink layer, an adhesive, a capacitive sensing layer, a full-lamination OCA, a liquid crystaldisplay module and UV-side curing devices arranged at four corners of the display screen, and is characterized in that the cover plate, the ink layer, the adhesive and the capacitive sensing layer form a touch screen TP; and the touch screen TP and the liquid crystal display module are laminated through the full-lamination OCA to form a touch display screen. The full-lamination OCA of the edge area of the touch display screen is completely cured, the viscous strength between the touch screens at the four corners of the touch display screen and the display screen is improved, the touch screensare prevented from being separated from the corner areas of the display screen during a peening test, and meanwhile, by automatically adjusting the length and width of the sliding groove structure and the horizontal direction and vertical direction of a UV-side fixing lamp, the method can be suitable for UV-side curing of touch display screens with different sizes and thicknesses.

Description

technical field [0001] The invention relates to the technical field of touch screens, in particular to a touch screen with high strength corners. Background technique [0002] The main structures of the capacitive touch screen (referred to as TP) are GG, GFF, GF2, OGM, PFF, PF2, etc., combined with the liquid crystal display module (referred to as the LCM), through the frame bonding or full bonding process, can be assembled into a display function The capacitive touch screen TP+LCM integrated with the touch function, the frame sticker is to use double-sided tape or foam glue to bond the TP and the LCM together, and only let the two components TP and the edges of the LCM stick together Together, there is a layer of air in the middle. This bonding method is also called Airbonding (abbreviated as AB). Its disadvantage is that the overall reflectivity reaches 16%, there is no overall black effect, and the visual effect is not good. Full bonding is to use OCA or water glue to ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F3/041G06F3/044G09F9/30G09F9/35
CPCG06F3/0412G06F3/044G09F9/301G09F9/35
Inventor 李建军
Owner 牧东光电科技有限公司
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