Bendable touch screen

A touch screen and bending technology, which is applied in the direction of instruments, electrical digital data processing, data processing input/output process, etc., can solve problems such as fracture and inorganic film cracks, and achieve the goal of improving bending performance and retaining functional performance Effect

Active Publication Date: 2020-05-12
EVERDISPLAY OPTRONICS (SHANGHAI) CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] CN 106601133 A discloses a flexible display panel, its manufacturing method and display device, which are used to solve the problem that the inorganic film layer is prone to cracks or even breaks due to frequent bending in the existing flexible display panel

Method used

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preparation example Construction

[0028] The preparation method of the wiring area is as follows: coating the insulating material on the surface of the substrate, forming a concave structure on the surface of the insulating material through a yellow light process, forming a first insulating layer, and making the first insulating layer of the functional area and the wiring area at the same time, using The PVD or laser process deposits or coats the conductive material inside the depression of the first insulating layer to form the third metal layer, and then uses the coating process to coat the insulating material on the third metal layer to obtain a protective layer. In the present invention, the substrate of the functional area and the wiring area is the same substrate, and the protective layers of the functional area and the wiring area can be prepared at the same time.

[0029] In the present invention, first, the yellow light process forms a concave structure on the surface of the first insulating layer, and...

Embodiment 1

[0034] When the substrate is CPI (10um), the in-plane conductive material is relatively brittle ITO, and the out-of-plane wiring area uses Ti / Al / Ti, this structure can achieve a bending radius of 2mm and a bending frequency of 200,000 times. , its touch function is still normal.

Embodiment 2

[0036] When the base material is PET (50um), the in-plane conductive material is Metal Mesh, and the out-of-plane wiring area uses Ag, the bending radius of this structure can reach 2mm, and the touch function can still be achieved when the bending times are 200,000 times. normal.

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Abstract

The invention provides a bendable touch screen. The touch screen comprises a functional area and a wiring area. The functional area comprises a base material and a first insulating layer that is laminated on the surface of the base material; the first insulating layer comprises a concave structure; a first metal layer is arranged in the concave structure; a second insulating layer is laminated onthe surfaces of the first insulating layer and the first metal layer, the second insulating layer comprises at least one concave structure; second metal layers are respectively and independently laminated in the concave structure of the second insulating layer and on the surface of the concave structure of the second insulating layer, a protective layer is laminated on the surface of the second metal layer, and the protective layer comprises a concave structure; the wiring area comprises a base material layer, and a first insulating layer, a third metal layer and a protective layer which are sequentially stacked on the surface of the base material layer, and each of the first insulating layer, the third metal layer and the protective layer independently comprises a concave structure. The touch screen has excellent bendable performance.

Description

technical field [0001] The invention belongs to the field of display technology, and relates to a touch screen, in particular to a bendable touch screen. Background technique [0002] Currently, the development of active-matrix organic light-emitting diode (AMOLED) flexible display devices has become a star among research hotspots. Correspondingly, the development of the bending resistance of each component is facing great challenges. As a medium of human-computer interaction, the touch panel requires that after the display screen realizes a free shape (such as bending or curling), the touch function will not be affected. Therefore, how to release the mechanical stress generated during the bending process is particularly important. [0003] CN 106601133 A discloses a flexible display panel, its manufacturing method and display device, which are used to solve the problem that the inorganic film layer is prone to cracks or even breaks due to frequent bending in the existing ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F3/041
CPCG06F3/041
Inventor 刘艳
Owner EVERDISPLAY OPTRONICS (SHANGHAI) CO LTD
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