Title:
OPTICAL SENSOR FOR PROXIMITY AND AMBIENT LIGHT DETECTION UNDER DISPLAY
Document Type and Number:
WIPO Patent Application WO/2024/055233
Kind Code:
A1
Abstract:
An optical sensor (100) for proximity and ambient light detection under a display (104), the optical sensor (100) comprising: a matrix (108) of photosensitive pixels, wherein a first set (200) of pixels covered by bandpass filters in the visible range of light, the first set (200) of pixels are configured for ambient light detection, wherein at least one subset of the first set (200) of pixels is covered by a bandpass filter that excludes at least part of an emission spectrum from the display (104), and wherein a second set (300) of pixels is arranged along a perimeter surrounding the first set (200) of pixels, the second set (300) of pixels being covered by an IR-bandpass filter, and an IR-light source (110) for emitting light towards the display (104) for reflection by an object (111) on the opposite side of the display (104), wherein the second set (300) of pixels are configured to detect the reflected light for object (111) proximity detection.
Inventors:
LIU JUN (CN)
SHEN CHUNMING (CN)
SHEN CHUNMING (CN)
Application Number:
PCT/CN2022/118994
Publication Date:
March 21, 2024
Filing Date:
September 15, 2022
Export Citation:
Assignee:
FINGERPRINT CARDS ANACATUM IP AB (SE)
LIU JUN (CN)
LIU JUN (CN)
International Classes:
G01J1/04
Foreign References:
| KR20150025713A | 2015-03-11 | |||
| KR20150025712A | 2015-03-11 | |||
| US20090027652A1 | 2009-01-29 | |||
| CN102446911A | 2012-05-09 | |||
| CN216978134U | 2022-07-15 | |||
| US20100013961A1 | 2010-01-21 |
Attorney, Agent or Firm:
UNITALEN ATTORNEYS AT LAW CO., LTD. (CN)
Download PDF:
Previous Patent: POLYCARBONATE-BASED COMPOSITIONS AND LASER-WELDED ARTICLES INCLUDING SAME
Next Patent: OLED ANTI-AGING REGIONAL COMPENSATION
Next Patent: OLED ANTI-AGING REGIONAL COMPENSATION