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:
Oct. 03, 2023

Filed:

Jun. 22, 2022
Applicant:

Funai Electric Co., Ltd., Osaka, JP;

Inventor:

Tatsuya Ito, Osaka, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B 5/02 (2006.01); G02F 1/13357 (2006.01);
U.S. Cl.
CPC ...
G02B 5/0278 (2013.01); G02B 5/0205 (2013.01); G02F 1/133605 (2013.01); G02F 1/133611 (2013.01); G02F 1/133603 (2013.01);
Abstract

A display device comprises a plurality of light sources, a luminance equalizer sheet and a display. The light sources include a plurality of first light sources arranged in an array on an arrangement region and a plurality of second light sources arranged at corner portions of the arrangement region, respectively. The luminance equalizer sheet is arranged opposite the light sources to equalize luminance, the luminance equalizer sheet including first portions that face the first light sources, respectively, and second portions that face the second light sources, respectively, the second portions being different from the first portions. The display is arranged opposite the luminance equalizer sheet and disposed on an opposite side of the luminance equalizer sheet relative to the light sources. The second portions of the luminance equalizer sheet form corner low transmittance areas with lower light transmittance than a portion of the luminance equalizer sheet other than the first portions and the second portions.


Find Patent Forward Citations

Ito, Tatsuya. (2023). Display device and backlight device (U.S. Patent No. 11774646). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/11774646

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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