Title:
ILLUMINATION SENSOR AT LOWER PART OF DISPLAY
Document Type and Number:
WIPO Patent Application WO/2021/146959
Kind Code:
A1
Abstract:
An illumination sensor (100, 101) at a lower part of a display (10, 10'), comprising: a light selection layer (200, 201) having a first light path and a second light path in which circularly polarized display light (22, 22') generated by external light (20) entered from the outside of the display (10, 10') advances and non-polarized light (30) generated by pixels advances; and a light sensor (300) having a first light receiving unit (310, 310') which detects light that has passed through the first light path, and a second light receiving unit (320, 320') which detects light that has passed through the second light path, wherein the first light path allows both the circularly polarized display light (22, 22') and the non-polarized light (30) to pass through, and the second light path blocks the circularly polarized display light (22, 22') and allows the non-polarized light (30) to pass through.
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Inventors:
MIN BYUNG IL (CN)
Application Number:
PCT/CN2020/073635
Publication Date:
July 29, 2021
Filing Date:
January 21, 2020
Export Citation:
Assignee:
HANGZHOU SINGLE MICRO ELECTRONIC CO LTD (CN)
International Classes:
G01J1/44
Foreign References:
| CN108881538A | 2018-11-23 | |||
| CN105974697A | 2016-09-28 | |||
| CN109425427A | 2019-03-05 | |||
| CN105676555A | 2016-06-15 | |||
| CN109036163A | 2018-12-18 | |||
| JP2006067469A | 2006-03-09 |
Attorney, Agent or Firm:
KANGXIN PARTNERS, P.C. (CN)
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