The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
May. 06, 2025

Filed:

Jun. 23, 2022
Applicant:

Envisics Ltd, Milton Keynes, GB;

Inventors:

Alexander Cole, Milton Keynes, GB;

Neil Collings, Milton Keynes, GB;

Assignee:

Envisics Ltd., Milton Keynes, GB;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02F 1/1335 (2005.12); G02B 27/01 (2005.12); G02F 1/1362 (2005.12); G03H 1/00 (2005.12);
U.S. Cl.
CPC ...
G02F 1/133516 (2012.12); G02B 27/0103 (2012.12); G02F 1/133504 (2012.12); G02F 1/133512 (2012.12); G02F 1/136277 (2012.12); G02F 2201/305 (2012.12);
Abstract

A display device, a photomask for a display device and a method for fabricating a display device comprising the photomask is described. The display device comprises a plurality of pixels arranged to spatially modulate light having a first characteristic. The display device further comprises a pixel mask structure. The pixel mask structure comprises a diffractive pattern that is configured to diffract light having the first characteristic and to transmit light having a second characteristic (without diffraction). The diffractive pattern of the pixel mask structure substantially surrounds the plurality of pixels.


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