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:
Mar. 08, 2022

Filed:

Apr. 26, 2021
Applicant:

Dell Products, Lp, Round Rock, TX (US);

Inventors:

Yu-Lung Lin, Taoyuan, TW;

Max Lu, Zhunan Township, TW;

How-Lan Lin, Taipei, TW;

Dan Odell Boice, Taipei, TW;

Asim Siddiqui, Cedar Park, TX (US);

Assignee:

Dell Products L.P., Round Rock, TX (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F21V 8/00 (2006.01);
U.S. Cl.
CPC ...
G02B 6/0061 (2013.01); G02B 6/0038 (2013.01); G02B 6/0055 (2013.01);
Abstract

A display device includes a light source arranged to emit light along a first edge of the display device, and aa light guide plate arranged go receive the emitted light at a minor surface of the light guide plate. The light guide plate includes prismatic elements configured to reemit the light out a first major surface of the light guide plate. A first region of the light guide plate has a first portion of the prismatic elements arranged in a first density to provide a first brightness of the reemitted light reemitted. A second region of the light guide plate has a second portion of the prismatic elements arranged in a second density to provide a second brightness of the reemitted light reemitted. The first region is provided substantially along a first edge of the first major surface, and the second region is provided along a second, a third, and a fourth edge of the first major surface. The first brightness is brighter than the second brightness.


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