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:
Apr. 14, 2020

Filed:

Apr. 03, 2019
Applicant:

Japan Display Inc., Tokyo, JP;

Inventor:

Yutaka Ozawa, Tokyo, JP;

Assignee:

Japan Display Inc., Tokyo, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G09G 3/34 (2006.01); G09G 3/36 (2006.01); G02F 1/1362 (2006.01); G02F 1/1368 (2006.01); G02F 1/1335 (2006.01); F21V 8/00 (2006.01);
U.S. Cl.
CPC ...
G09G 3/3413 (2013.01); G02B 6/0068 (2013.01); G02F 1/1368 (2013.01); G02F 1/133621 (2013.01); G02F 1/136286 (2013.01); G09G 3/3607 (2013.01); G09G 3/3688 (2013.01); G09G 2300/0426 (2013.01); G09G 2300/0439 (2013.01); G09G 2310/08 (2013.01);
Abstract

A display device includes: pixels arranged in a row direction and in a column direction in a display area, each pixel including a memory block including memories; memory selection line groups each including memory selection lines electrically coupled to the memory block of each of the pixels belonging to a corresponding row; a memory selection circuit that simultaneously outputs a memory selection signal to the memory selection line groups; light sources; a light source selection circuit that selects which light source is to be used; and a light guide plate that guides the light emitted from selected light source to the display area. One of the memories is selected, and each pixel displays an image based on pixel data being stored in the selected memory. The light source selected by the light source selection circuit emits light over an entire period of time in which the one memory is selected.


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