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1. WO2020093529 - PROTECTION CIRCUIT FOR MEMORY IN DISPLAY PANEL AND DISPLAY PANEL

Publication Number WO/2020/093529
Publication Date 14.05.2020
International Application No. PCT/CN2018/121831
International Filing Date 18.12.2018
IPC
G11C 7/24 2006.01
GPHYSICS
11INFORMATION STORAGE
CSTATIC STORES
7Arrangements for writing information into, or reading information out from, a digital store
24Memory cell safety or protection circuits, e.g. arrangements for preventing inadvertent reading or writing; Status cells; Test cells
G11C 7/10 2006.01
GPHYSICS
11INFORMATION STORAGE
CSTATIC STORES
7Arrangements for writing information into, or reading information out from, a digital store
10Input/output data interface arrangements, e.g. I/O data control circuits, I/O data buffers
G09G 3/36 2006.01
GPHYSICS
09EDUCATING; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
GARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
3Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
20for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix
34by control of light from an independent source
36using liquid crystals
CPC
G09G 3/36
GPHYSICS
09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
GARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
3Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
20for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix ; no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
34by control of light from an independent source
36using liquid crystals
G11C 7/1051
GPHYSICS
11INFORMATION STORAGE
CSTATIC STORES
7Arrangements for writing information into, or reading information out from, a digital store
10Input/output [I/O] data interface arrangements, e.g. I/O data control circuits, I/O data buffers
1051Data output circuits, e.g. read-out amplifiers, data output buffers, data output registers, data output level conversion circuits
G11C 7/1096
GPHYSICS
11INFORMATION STORAGE
CSTATIC STORES
7Arrangements for writing information into, or reading information out from, a digital store
10Input/output [I/O] data interface arrangements, e.g. I/O data control circuits, I/O data buffers
1078Data input circuits, e.g. write amplifiers, data input buffers, data input registers, data input level conversion circuits
1096Write circuits, e.g. I/O line write drivers
G11C 7/24
GPHYSICS
11INFORMATION STORAGE
CSTATIC STORES
7Arrangements for writing information into, or reading information out from, a digital store
24Memory cell safety or protection circuits, e.g. arrangements for preventing inadvertent reading or writing; Status cells; Test cells
Applicants
  • 惠科股份有限公司 HKC CORPORATION LIMITED [CN]/[CN]
Inventors
  • 何怀亮 HE, Huailiang
Agents
  • 深圳市世纪恒程知识产权代理事务所 CENFO INTELLECTUAL PROPERTY AGENCY
Priority Data
201811317750.606.11.2018CN
Publication Language Chinese (ZH)
Filing Language Chinese (ZH)
Designated States
Title
(EN) PROTECTION CIRCUIT FOR MEMORY IN DISPLAY PANEL AND DISPLAY PANEL
(FR) CIRCUIT DE PROTECTION POUR MÉMOIRE DANS UN PANNEAU D'AFFICHAGE ET PANNEAU D'AFFICHAGE
(ZH) 显示面板中存储器的保护电路及显示面板
Abstract
(EN)
Disclosed in the present application are a protection circuit for a memory in a display panel and a display panel. Said circuit comprises a timing controller, a memory, a power supply circuit and a switch circuit. By removing a write protection signal originally provided by a computer, the power supply circuit outputs a stable and reliably write protection signal to the memory, so as to limit the data of the memory to be rewritten, and the timing controller controls the switch circuit to be turned on to connect the control terminal of the write protection signal of the memory to ground only when receiving an instruction for writing data to the memory.
(FR)
La présente invention concerne un circuit de protection pour une mémoire dans un panneau d'affichage et un panneau d'affichage. Ledit circuit comprend un dispositif de commande de temporisation, une mémoire, un circuit d'alimentation électrique et un circuit de commutation. En supprimant un signal de protection d'écriture fourni à l'origine par un ordinateur, le circuit d'alimentation électrique délivre en sortie un signal de protection d'écriture stable et fiable à la mémoire, de façon à limiter la réécriture des données de la mémoire, et le dispositif de commande de temporisation commande au circuit de commutation de s'allumer afin de connecter la borne de commande du signal de protection d'écriture de la mémoire à la terre uniquement lors de la réception d'une instruction pour écrire des données dans la mémoire.
(ZH)
本申请公开一种显示面板中存储器的保护电路及显示面板,该电路包括时序控制器、存储器、电源电路及开关电路,通过将原来由计算机提供的写保护信号被去除,由电源电路输出稳定、可靠地写保护信号至存储器,以限制存储器的数据被改写,时序控制器则仅在接收到对存储器进行数据写入的指令时,控制开关电路开启而将存储器的写保护信号控制端接到地。
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