Fingerprint identification module

Patent metadata

Field	Value
Publication number	US-2023215212-A1
Application number	US-202318182387-A
Country	US
Kind code	A1
Filing date	Mar 13, 2023
Priority date	Apr 22, 2020
Publication date	Jul 6, 2023
Grant date	—

Abstract

A fingerprint identification module includes a color filter substrate and a protective cover. The color filter substrate includes a first shading member. The protective cover is disposed on the color filter substrate and includes a second shading member. The second shading member faces the color filter substrate. There is a gap between the first shading member and the second shading member in a thickness direction of the fingerprint identification module, and the gap is within a range of 0.2 mm to 0.7 mm, in the cross-sectional view of the fingerprint identification module, the second shading member includes a first part and a second part spatially separated from the first part, the first part and the second part are located on opposite sides of the fingerprint identification module, and one of the first part and the second part does not overlap the first shading member in the thickness direction.

First claim

What is claimed is:

1 . A fingerprint identification module, comprising:
a color filter substrate, comprising a first shading member; a protective cover, disposed on the color filter substrate and comprising a second shading member; an active element array substrate, disposed under the color filter substrate, wherein the first shading member is located on a side of the color filter substrate adjacent to the active element array substrate; a lower polarizer, disposed adjacent to the active element array substrate, wherein the active element array substrate is located between the color filter substrate and the lower polarizer; a backlight module, disposed under the lower polarizer; and a frame body, configured to accommodate the backlight module and having a light transmitting opening, wherein the second shading member faces the color filter substrate, there is a gap between the first shading member and the second shading member in a thickness direction of the fingerprint identification module, and the gap is within a range of 0.2 mm to 0.7 mm, in a cross-sectional view of the fingerprint identification module, the second shading member is divided into a first part and a second part, the first part and the second part are located on opposite sides of the fingerprint identification module, the first part and the second part are separated from each other, wherein one of the first part and the second part does not overlap the first shading member in the thickness direction.

2 . The fingerprint identification module according to claim 1 , wherein the second shading member comprises a plurality of light transmitting holes.

3 . The fingerprint identification module according to claim 1 , wherein the first shading member is away from the protective cover.

4 . The fingerprint identification module according to claim 1 , further comprising:
an optical layer, disposed between the color filter substrate and the protective cover.

5 . The fingerprint identification module according to claim 4 , further comprising:
an upper polarizer, disposed on the color filter substrate and located between the optical layer and the color filter substrate.

6 . The fingerprint identification module according to claim 1 , further comprising:
a liquid crystal layer, located between the color filter substrate and the active element array substrate.

7 . The fingerprint identification module according to claim 1 , further comprising:
a signal line carrier, electrically connected to the active element array substrate and bent to a back surface of the frame body; and a chip, disposed on the signal line carrier and electrically connected to the signal line carrier.

Assignees

• Innolux Corp

Inventors

• Liao Hsiao Feng
• Chien Chuan-Chi
• Yao I-An

Classifications

• G06V40/1318 Primary

  using electro-optical elements or layers, e.g. electroluminescent sensing · CPC title

• G02F1/13338

  Input devices, e.g. touch panels · CPC title

• G02F1/133528

  Polarisers · CPC title

• G02F1/133514

  Colour filters · CPC title

• G02F2201/50

  Protective arrangements · CPC title