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1. EP3907759 - ELECTROSTATIC DISCHARGE PROTECTION CIRCUIT, DISPLAY SUBSTRATE, AND DISPLAY DEVICE

Office
European Patent Office
Application Number 19829390
Application Date 04.01.2019
Publication Number 3907759
Publication Date 10.11.2021
Publication Kind A1
IPC
H01L 23/60
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
LSEMICONDUCTOR DEVICES; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR
23Details of semiconductor or other solid state devices
58Structural electrical arrangements for semiconductor devices not otherwise provided for
60Protection against electrostatic charges or discharges, e.g. Faraday shields
G02F 1/1362
GPHYSICS
02OPTICS
FDEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH IS MODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THE DEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY, COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g. SWITCHING, GATING, MODULATING OR DEMODULATING; TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF; FREQUENCY-CHANGING; NON-LINEAR OPTICS; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
1Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
01for the control of the intensity, phase, polarisation or colour
13based on liquid crystals, e.g. single liquid crystal display cells
133Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
136Liquid crystal cells structurally associated with a semi-conducting layer or substrate, e.g. cells forming part of an integrated circuit
1362Active matrix addressed cells
H01L 27/12
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
LSEMICONDUCTOR DEVICES; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR
27Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate
02including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having at least one potential-jump barrier or surface barrier; including integrated passive circuit elements with at least one potential-jump barrier or surface barrier
12the substrate being other than a semiconductor body, e.g. an insulating body
CPC
G02F 1/136204
GPHYSICS
02OPTICS
FDEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH IS MODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THE DEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY, COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g. SWITCHING, GATING, MODULATING OR DEMODULATING; TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF; FREQUENCY-CHANGING; NON-LINEAR OPTICS; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
1Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
01for the control of the intensity, phase, polarisation or colour 
13based on liquid crystals, e.g. single liquid crystal display cells
133Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
136Liquid crystal cells structurally associated with a semi-conducting layer or substrate, e.g. cells forming part of an integrated circuit
1362Active matrix addressed cells
136204Arrangements to prevent high voltage or static electricity failures
H05K 9/0067
HELECTRICITY
05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
KPRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
9Screening of apparatus or components against electric or magnetic fields
0067Devices for protecting against damage from electrostatic discharge
H01L 27/12
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
LSEMICONDUCTOR DEVICES; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR
27Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate
02including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having at least one potential-jump barrier or surface barrier; including integrated passive circuit elements with at least one potential-jump barrier or surface barrier
12the substrate being other than a semiconductor body, e.g. an insulating body
G06F 1/182
GPHYSICS
06COMPUTING; CALCULATING; COUNTING
FELECTRIC DIGITAL DATA PROCESSING
1Details not covered by groups G06F3/00G06F13/00 and G06F21/00
16Constructional details or arrangements
18Packaging or power distribution
181Enclosures
182with special features, e.g. for use in industrial environments; grounding or shielding against radio frequency interference [RFI] or electromagnetical interference [EMI]
H05K 9/0079
HELECTRICITY
05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
KPRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
9Screening of apparatus or components against electric or magnetic fields
0073Shielding materials
0079Electrostatic discharge protection, e.g. ESD treated surface for rapid dissipation of charges
Applicants BOE TECHNOLOGY GROUP CO LTD
CHONGQING BOE OPTOELECTRONICS TECH CO LTD
Inventors XU ZHUO
BAI YAJIE
WANG XIAOLIN
MA TONGGUO
GE YONGLI
Designated States
Title
(DE) SCHUTZSCHALTUNG GEGEN ELEKTROSTATISCHE ENTLADUNG, ANZEIGESUBSTRAT UND ANZEIGEVORRICHTUNG
(EN) ELECTROSTATIC DISCHARGE PROTECTION CIRCUIT, DISPLAY SUBSTRATE, AND DISPLAY DEVICE
(FR) CIRCUIT DE PROTECTION CONTRE LES DÉCHARGES ÉLECTROSTATIQUES, SUBSTRAT D'AFFICHAGE, ET DISPOSITIF D'AFFICHAGE
Abstract
(EN) An electrostatic discharge protection circuit, a display substrate and a display apparatus are disclosed. The electrostatic discharge protection circuit includes: a first conductive portion, having an end portion; and at least one electrostatic discharge portion, arranged on a same layer as the first conductive portion and spaced from the end portion of the first conductive portion, the at least one electrostatic discharge portion being configured to discharge electrostatic charges generated at the end portion of the first conductive portion. The electrostatic discharge portion is positioned near the end portion of the first conductive portion, and the electrostatic charges accumulated at the end portion can be discharged by the electrostatic discharge portion, and thus, the electrostatic discharge portion can share a breakdown current so as to prevent static electricity from entering other effective circuits.
(FR) L'invention concerne un circuit de protection contre les décharges électrostatiques, un substrat d'affichage, et un dispositif d'affichage. Le circuit de protection contre les décharges électrostatiques comprend : une première partie conductrice, ayant une partie d'extrémité ; au moins une partie de décharge électrostatique, disposée dans la même couche que ladite première partie conductrice et espacée de l'extrémité de la première partie conductrice, ladite partie de décharge électrostatique étant configurée pour décharger une charge électrostatique générée au niveau de la partie d'extrémité de la première partie conductrice. Comme la partie de décharge électrostatique est située à proximité de l'extrémité de la première partie conductrice, la charge électrostatique accumulée au niveau de la partie d'extrémité peut être déchargée au moyen de la partie de décharge électrostatique, ainsi, la partie de décharge électrostatique peut partager le courant de claquage, empêchant l'électricité statique de pénétrer dans d'autres circuits actifs.
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