Touch-control panel and touch-control displaying device

Patent metadata

Field	Value
Publication number	US-12511002-B2
Application number	US-202418912776-A
Country	US
Kind code	B2
Filing date	Oct 11, 2024
Priority date	Jul 5, 2021
Publication date	Dec 30, 2025
Grant date	Dec 30, 2025

Abstract

A touch-control panel and a touch-control displaying device, which relates to the technical field of touch control. In the present application, by providing the first carrier element, the first electrically conductive layer and the first shadow eliminating layer on the substrate, by blocking the first electrically conductive layer by using the first shadow eliminating layer, the reflectivity of the first electrically conductive layer is reduced, which reduces the pattern of the first electrically conductive layer being observed under intensive-light reflection.

First claim

The invention claimed is:

1 . A touch-control panel, wherein the touch-control panel comprises:
a substrate; a first carrier element located on one side of the substrate, wherein the first carrier element has a plurality of first accommodating grooves; a first electrically conductive layer, comprising a plurality of first electrically conducting lines, wherein each of the first electrically conducting lines is located inside one of the first accommodating grooves; and a first shadow eliminating layer located inside the first accommodating grooves, wherein an orthographic projection of the first shadow eliminating layer on the substrate covers an orthographic projection of at least part of the first electrically conductive layer on the substrate; the touch-control panel further comprises: a second carrier element located on one side of the substrate, wherein the second carrier element has a plurality of second accommodating grooves; and a second electrically conductive layer, comprising a plurality of second electrically conducting lines, wherein each of the second electrically conducting lines is located inside one of the second accommodating grooves; the plurality of first electrically conducting lines form a plurality of first electrically conducting grids, the first electrically conducting lines, which correspond to at least some of the plurality of first electrically conducting grids, have first notches, and the first notches separate the first electrically conductive layer into a plurality of first electrically conducting elements; the plurality of second electrically conducting lines form a plurality of second electrically conducting grids, the second electrically conducting lines, which correspond to at least some of the plurality of second electrically conducting grids, have second notches, and the second notches separate the second electrically conductive layer into a plurality of second electrically conducting elements; and the plurality of first electrically conducting elements and the plurality of second electrically conducting elements together form a latticed first touch-controlling electrode and a latticed second touch-controlling electrode; the plurality of first electrically conducting elements include a plurality of instances of the first touch-controlling electrode that extend in a first direction, and the plurality of second electrically conducting elements include a plurality of instances of the second touch-controlling electrode that extend in a second direction, wherein the first direction intersects with the second direction; the plurality of first electrically conducting elements further include a plurality of first leisure electrodes provided between two neighboring instances of the first touch-controlling electrode, and each of the first leisure electrodes is insulated from the first touch-controlling electrodes by the first notches; and the plurality of second electrically conducting elements further include a plurality of second leisure electrodes provided between two neighboring instances of the second touch-controlling electrode, and each of the second leisure electrodes is insulated from the second touch-controlling electrodes by the second notches.

2 . The touch-control panel according to claim 1 , wherein the first carrier element comprises:
a first carrier layer, wherein the first carrier layer has a plurality of first grooves; and a second carrier layer located on one side of the first carrier layer that is away from the substrate, wherein the second carrier layer has a plurality of second grooves; wherein the first accommodating groove comprises the first groove and the second groove, each of the first electrically conducting lines is located inside one of the first grooves, and the first shadow eliminating layer is located inside the second grooves; and the first carrier layer is insulated from the first electrically conductive layer, and the second carrier layer is insulated from the first shadow eliminating layer.

3 . The touch-control panel according to claim 1 , wherein the touch-control panel further comprises:
a second shadow eliminating layer located inside the second accommodating grooves, wherein an orthographic projection of the second shadow eliminating layer on the substrate covers an orthographic projection of at least part of the second electrically conductive layer on the substrate.

4 . The touch-control panel according to claim 3 , wherein the second carrier element comprises:
a fourth carrier layer, wherein the fourth carrier layer has a plurality of fourth grooves; and a fifth carrier layer located on a same side of the substrate where the fourth carrier layer is located, wherein the fifth carrier layer has a plurality of fifth grooves; wherein the second accommodating groove comprises the fourth groove and the fifth groove, the second shadow eliminating layer is located inside the fourth grooves, and each of the second electrically conducting lines is located inside one of the fifth grooves; and the fourth carrier layer is insulated from the second shadow eliminating layer, and the fifth carrier layer is insulated from the second electrically conductive layer.

5 . The touch-control panel according to claim 1 , wherein the first carrier element is located on a first side of the substrate, and the second carrier element is located on a second side of the substrate, wherein the first side and the second side are two opposite sides of the substrate.

6 . The touch-control panel according to claim 3 , wherein the orthographic projection of the first shadow eliminating layer on the substrate covers the entire orthographic projection of the first electrically conductive layer on the substrate; and
the orthographic projection of the second shadow eliminating layer on the substrate covers the entire orthographic projection of the second electrically conductive layer on the substrate.

7 . The touch-control panel according to claim 1 , wherein a line width of the first electrically conducting lines is less than or equal to a line width of the second electrically conducting lines.

8 . The touch-control panel according to claim 1 , wherein both of a material of the first carrier element and a material of the second carrier element are a photo-solidified adhesive.

9 . The touch-control panel according to claim 3 , wherein both of the first shadow eliminating layer and the second shadow eliminating layer are a light shielding ink layer or a light shielding oxide layer, and a transmittance of the first shadow eliminating layer and a transmittance of the second shadow eliminating layer are less than or equal to 10%.

10 . The touch-control panel according to claim 1 , wherein the first electrically conducting grids and the second electrically conducting grids are arranged in stagger.

11 . The touch-control panel according to claim 3 , wherein all of cross-sectional shapes in a target cross section of the first electrically conducting lines, the first shadow eliminating layer inside each of the first accommodating grooves, the second electrically conducting lines and the second shadow eliminating layer inside each of the second accommodating grooves are substantially a trapezoid;
a cross-sectional shape in the target cross section of a combined component of the first shadow eliminating layer and the first electrically conducting line inside each of the first accommodating grooves is substantially a trapezoid; and a cross-sectional shape in the target cross section of a combined component of the second shadow eliminating layer and the second electrically conducting line inside each of the second accommodating grooves i

Assignees

• Chengdu Boe Optoelect Tech Co
• Boe Technology Group Co Ltd

Inventors

• Min Hang
• Zhang Guiyu
• Wang Qiang
• Wang Zhiqiang
• Luo Hongqiang
• Jiang Liqing
• Luo Ping

Classifications

• G06F3/0412

  Digitisers structurally integrated in a display · CPC title

• G06F3/0445

  using two or more layers of sensing electrodes, e.g. using two layers of electrodes separated by a dielectric layer · CPC title

• G06F3/0448

  Details of the electrode shape, e.g. for enhancing the detection of touches, for generating specific electric field shapes, for enhancing display quality · CPC title

• G06F3/0443

  using a single layer of sensing electrodes · CPC title

• G06F2203/04103

  Manufacturing, i.e. details related to manufacturing processes specially suited for touch sensitive devices · CPC title