Title:
FLEXIBLE DISPLAY INSPECTION SYSTEM
Document Type and Number:
WIPO Patent Application WO/2023/279425
Kind Code:
A1
Abstract:
A display inspection system (100) for inspecting a light beam emitted from a panel (10) with pixels positioned at several focal planes is provided. The display inspection system (100) includes a focus tunable lens (110) adjustable in a focal distance for focusing at the panel (10), a first sensing unit (140) for receiving the light beam, a reduced aberration optical system (120) arranged between the focus tunable lens (110) and the first sensing unit (140) for focusing at the first sensing unit (140), and one or more optical elements (130) placed within a back focal length of the reduced aberration optical system (120). The reduced aberration optical system (120) comprises a first serial cascade lens group (120B) of a first aplanatic lens (124) and a first doublet lens (123) for correcting an optical aberration. The first aplanatic lens (124) and the first doublet lens (123) are co-configured that the back focal length is extended in a manner that the light beam is incident to the first sensing unit (140).
Inventors:
LANG QI (CN)
JIANG JINBO (CN)
WU CHANGLI (CN)
JIANG JINBO (CN)
WU CHANGLI (CN)
Application Number:
PCT/CN2021/106672
Publication Date:
January 12, 2023
Filing Date:
July 16, 2021
Export Citation:
Assignee:
HONG KONG APPLIED SCIENCE & TECH RESEARCH INST CO LTD (CN)
International Classes:
G01N21/95
Foreign References:
| CN213456719U | 2021-06-15 | |||
| CN105049702A | 2015-11-11 | |||
| CN108427203A | 2018-08-21 | |||
| CN105486341A | 2016-04-13 | |||
| CN107003122A | 2017-08-01 | |||
| CN102243445A | 2011-11-16 | |||
| US20080043217A1 | 2008-02-21 | |||
| US20080144023A1 | 2008-06-19 | |||
| US20020036769A1 | 2002-03-28 |
Attorney, Agent or Firm:
BEIJING PAT SF INTELLECTUAL PROPERTY AGENCY CO. LTD (CN)
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