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:
Nov. 29, 2022

Filed:

Dec. 19, 2018
Applicant:

Hkc Corporation Limited, Guangdong, CN;

Inventor:

Huailiang He, Guangdong, CN;

Assignee:

HKC CORPORATION LIMITED, Guangdong, CN;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11C 7/24 (2006.01); G09G 3/20 (2006.01); G11C 5/14 (2006.01); G11C 16/22 (2006.01);
U.S. Cl.
CPC ...
G11C 7/24 (2013.01); G11C 5/147 (2013.01); G11C 16/22 (2013.01); G09G 3/20 (2013.01); G09G 2330/021 (2013.01); G09G 2330/04 (2013.01); G09G 2360/12 (2013.01);
Abstract

Disclosed is a protection circuit of a memory in a display panel. The circuit includes: a timing controller, for outputting a first control signal; a memory, for storing software data of the timing controller; a power supply circuit, for outputting a power signal; and a monitor circuit, having three input ends and a signal output end, two input ends being respectively connected to the power supply circuit and a control signal output end, and the other one input end being input with a write control signal; the monitor circuit controls the memory to be in a write protection state when in a normal state, and controls the memory to be in a write enable state when a level state collection of the power signal, the first control signal, and the write control signal satisfies a preset level state collection.


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