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Fingerprint sensing device

A sensing device and fingerprint technology, which is applied in the direction of acquiring/organizing fingerprints/palmprints, instruments, lenses, etc., can solve the problems of poor recognition efficiency and low resolution of fingerprint images, and achieve the effect of reducing interference

Pending Publication Date: 2022-04-29
FITIPOWER INTEGRATED TECH INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is that the fingerprint image resolution of the fingerprint sensing device is low and the identification efficiency is poor

Method used

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Embodiment Construction

[0032] The present invention can be understood by referring to the following detailed description combined with the accompanying drawings. It should be noted that, in order to make the readers easy to understand and the drawings are concise, several drawings in the present invention only draw a part of the fingerprint sensing device , and certain components in the drawings are not drawn to actual scale. In addition, the quantity and size of each component in the figure are only for illustration, and are not intended to limit the scope of the present invention.

[0033] It will be understood that when a component or film is referred to as being “on,” “disposed on,” or “connected to” another component or film, it It may be directly on or directly connected to this other component or layer, or there may be an intervening component or layer in between (indirect case). In contrast, when a component is referred to as being "directly on," "directly disposed on" or "directly connecte...

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Abstract

The invention discloses a fingerprint sensing device which comprises a display panel, an optical sensor array, an optical path structure, a first pixel polaroid array and a second pixel polaroid array. The light sensor array comprises a light sensor. The optical path structure is arranged between the display panel and the optical sensor array. The first pixel polarizer array is disposed on the optical path structure and includes first pixel polarizers. The second pixel polarizer array is disposed on the display panel and includes second pixel polarizers. The first pixel polaroid, the second pixel polaroid and the light sensor are overlapped in a vertical projection direction, and the polarization direction of the first pixel polaroid is the same as that of the second pixel polaroid.

Description

technical field [0001] The invention relates to an optical sensing device, in particular to a fingerprint sensing device applied to fingerprint recognition. Background technique [0002] At present, smartphones with a borderless full-screen appearance and thinness have become the mainstream trend. Coupled with the increasing awareness of personal privacy protection, the demand for no holes in the glass on the screen and fingerprint recognition functions is gradually increasing. [0003] Under the consideration of thin film transistor liquid crystal display (thin film transistor liquid crystal display, TFT-LCD) and active matrix organic light-emitting diode display (AMOLED display) full-screen smart phone The fingerprint identification imaging systems in mobile phones mainly include pinhole imaging, single lens imaging and micro-lens array imaging. Among them, the pinhole imaging type and the microlens array imaging type can be mass-produced in a wafer factory, so the effici...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06V40/13G02B27/28
CPCG02B27/286G02B3/0006G06V40/1318G02B5/3058
Inventor 徐维宏
Owner FITIPOWER INTEGRATED TECH INC