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.
Patent No.:
Date of Patent:
Jul. 06, 2021
Filed:
Jul. 10, 2019
Sharp Kabushiki Kaisha, Sakai, JP;
Taimi Oketani, Sakai, JP;
Atsushi Ban, Sakai, JP;
Yasuhisa Itoh, Sakai, JP;
Takeshi Ishida, Sakai, JP;
SHARP KABUSHIKI KAISHA, Sakai, JP;
Abstract
A chip-mounted board including: micro light-emitting chips arranged in a matrix pattern in a light-emitting region; and a conductive line electrically connected to the micro light-emitting chips, the light-emitting region including a first region having a first luminance, a second region having a second luminance lower than the first luminance, and a third region having a third luminance lower than the first luminance and higher than the second luminance, the luminances being values determined with the same magnitude of current supplied to the micro light-emitting chips, the third region being positioned between the first region and the second region and satisfying the following formulas (1) and (2):(1+)/(1−)≤63.895×tan(0.5°)×500/+6.0525  (1)2=1  (2)wherein L1 represents the first luminance, L2 represents the second luminance, and W represents a width (unit: mm) of the third region.