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:
Aug. 06, 2019

Filed:

Aug. 23, 2017
Applicant:

Lg Display Co., Ltd., Seoul, KR;

Inventors:

Seunghwan Kim, Goyang-si, KR;

Young Sun Kim, Gwangju, KR;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G09G 3/36 (2006.01); G09G 3/00 (2006.01);
U.S. Cl.
CPC ...
G09G 3/006 (2013.01); G09G 3/367 (2013.01); G09G 3/3696 (2013.01); G09G 3/3614 (2013.01); G09G 3/3688 (2013.01); G09G 2310/027 (2013.01); G09G 2310/0289 (2013.01); G09G 2310/0291 (2013.01); G09G 2310/08 (2013.01); G09G 2330/026 (2013.01); G09G 2330/12 (2013.01);
Abstract

Disclosed are a power supply unit and a display device including the same, which prevent a source drive IC from being damaged by a supply reversal between a VDD voltage and an HVDD voltage. The power supply unit may include a first voltage generator that generates a first voltage and a first voltage line connected to the first voltage generator for supplying the first voltage to a plurality of first source drive ICs of the display panel. A second voltage generator is included that generates a second voltage, and a second voltage line is connected to the second voltage generator for supplying the second voltage to a plurality of second source drive ICs of the display panel. The power supply unit may further include a diode circuit that includes at least one diode connected between the first voltage line and the second voltage line.


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