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touch pad

A technology of touch panels and substrates, which is applied in the directions of instruments, calculations, and electrical digital data processing, etc. It can solve the problems of the overall strength reduction and reliability deterioration of the touch window, and achieve the effects of improving reliability, preventing strength deterioration, and enhancing strength

Active Publication Date: 2019-04-16
LG INNOTEK CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In this case, the overall strength of the touch window is reduced, deteriorating reliability

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0199] The touch panel is manufactured by coating a resin composition on a cover substrate to form a resin layer, depositing and patterning indium tin oxide on the resin layer to form sensing electrodes.

[0200] The resin composition was prepared with about 20 wt% acrylic copolymer, about 15 wt% crosslinker, about 2 wt% photoinitiator, about 5 wt% additives, about 10 wt% DE acetate and about 48 wt% MEDG.

[0201] In addition, the thickness of the resin layer was about 2 μm.

[0202] Subsequently, a drop ball test was performed with the height for the cover substrate varied to measure failure based on breakage of the cover substrate.

[0203] Also, measure the transmittance of the touch panel.

Embodiment 2

[0205] A touch panel was manufactured under the same conditions as in Example 1 except that the thickness of the resin layer was about 2.5 μm and the breakage and transmittance of the cover substrate were measured.

Embodiment 3

[0219] By forming SiO on the mask substrate 2 After SiO 2 A resin composition is coated on top to form a resin layer, and indium tin oxide is deposited and patterned on the resin layer to form sensing electrodes, thereby manufacturing a touch panel.

[0220] The resin composition was prepared with about 20 wt% acrylic copolymer, about 15 wt% crosslinker, about 2 wt% photoinitiator, about 5 wt% additives, about 10 wt% DE acetate and about 48 wt% MEDG.

[0221] In addition, the thickness of the resin layer was about 2 μm.

[0222] SiO 2 The thickness is about 5 nm.

[0223] Then, delamination of the resin layer was measured.

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Abstract

A touch panel according to the embodiment includes: a cover substrate including an active area and an unactive area; an intermediate layer on the cover substrate; and an electrode on the intermediate layer, wherein the intermediate layer includes an acrylic resin composition.

Description

technical field [0001] Embodiments relate to touchpads. Background technique [0002] Recently, a touch panel performing an input function through a touch of an input device such as a stylus or a finger to an image displayed on a display device has been applied to various electronic equipment. [0003] Such touch panels can be mainly classified into resistive touch panels and capacitive touch panels. In a resistive touch panel, the glass is shorted to the electrodes by the pressure of the input device so that a touch point is detected. In a capacitive touch panel, the position of a touch point is detected by detecting a change in capacitance between electrodes when a user's finger touches the capacitive touch panel. [0004] As the resistive touch panel is used repeatedly, the performance of the resistive touch panel may deteriorate and scratches may appear. Accordingly, interest in capacitive touch panels exhibiting excellent durability and long life has increased. [0...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F3/044
CPCG06F3/0443G06F2203/04103
Inventor 罗贤珉金敬镇朴亨濬赵志元姜文淑崔光惠洪范善
Owner LG INNOTEK CO LTD