GATE DRIVING CIRCUIR AND DISPLAY PANEL INCLUDING THE SAME

Disclosed are a gate driving circuit capable of reducing stress applied to a pull-down transistor, and a display panel including the same. The gate driving circuit according to an embodiment of the present disclosure includes: a control unit which charges and discharges a first control node pulling...

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Hauptverfasser: SEUNGHO HEO, DONGHYUN LEE
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DONGHYUN LEE
description Disclosed are a gate driving circuit capable of reducing stress applied to a pull-down transistor, and a display panel including the same. The gate driving circuit according to an embodiment of the present disclosure includes: a control unit which charges and discharges a first control node pulling up an output voltage and a second control node pulling down the output voltage; an output unit including a pull-up transistor which applies a gate-high voltage to an output node in response to a charging voltage of the first control node, and a pull-down transistor which applies a gate-low voltage to the output node in response to a charging voltage of the second control node; a sensing unit which senses a threshold voltage of the pull-down transistor; and a compensation unit which changes the charging voltage of the second control node in response to an output of the sensing unit. 실시예에 의한 게이트 구동회로 및 이를 포함하는 표시 패널이 개시된다. 실시예에 따른 게이트 구동회로는 출력 전압을 풀업시키는 제1 제어 노드와, 상기 출력 전압을 풀다운시키는 제2 제어 노드를 충방전하는 제어부; 상기 제1 제어 노드의 충전 전압에 응답하여 게이트 하이 전압을 출력 노드에 인가하는 풀업 트랜지스터와, 상기 제2 제어 노드의 충전 전압에 응답하여 게이트 로우 전압을 상기 출력 노드에 인가하는 풀다운 트랜지스터를 포함하는 출력부; 상기 풀다운 트랜지스터의 문턱 전압을 센싱하는 센싱부; 및 상기 센싱부의 출력에 응답하여 상기 제2 제어 노드의 충전 전압을 변경하는 보상부를 포함한다.
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The gate driving circuit according to an embodiment of the present disclosure includes: a control unit which charges and discharges a first control node pulling up an output voltage and a second control node pulling down the output voltage; an output unit including a pull-up transistor which applies a gate-high voltage to an output node in response to a charging voltage of the first control node, and a pull-down transistor which applies a gate-low voltage to the output node in response to a charging voltage of the second control node; a sensing unit which senses a threshold voltage of the pull-down transistor; and a compensation unit which changes the charging voltage of the second control node in response to an output of the sensing unit. 실시예에 의한 게이트 구동회로 및 이를 포함하는 표시 패널이 개시된다. 실시예에 따른 게이트 구동회로는 출력 전압을 풀업시키는 제1 제어 노드와, 상기 출력 전압을 풀다운시키는 제2 제어 노드를 충방전하는 제어부; 상기 제1 제어 노드의 충전 전압에 응답하여 게이트 하이 전압을 출력 노드에 인가하는 풀업 트랜지스터와, 상기 제2 제어 노드의 충전 전압에 응답하여 게이트 로우 전압을 상기 출력 노드에 인가하는 풀다운 트랜지스터를 포함하는 출력부; 상기 풀다운 트랜지스터의 문턱 전압을 센싱하는 센싱부; 및 상기 센싱부의 출력에 응답하여 상기 제2 제어 노드의 충전 전압을 변경하는 보상부를 포함한다.</description><language>eng ; kor</language><subject>ADVERTISING ; ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICESUSING STATIC MEANS TO PRESENT VARIABLE INFORMATION ; CRYPTOGRAPHY ; DISPLAY ; EDUCATION ; PHYSICS ; SEALS</subject><creationdate>2023</creationdate><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&amp;date=20230404&amp;DB=EPODOC&amp;CC=KR&amp;NR=20230044908A$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,780,885,25564,76547</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&amp;date=20230404&amp;DB=EPODOC&amp;CC=KR&amp;NR=20230044908A$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>SEUNGHO HEO</creatorcontrib><creatorcontrib>DONGHYUN LEE</creatorcontrib><title>GATE DRIVING CIRCUIR AND DISPLAY PANEL INCLUDING THE SAME</title><description>Disclosed are a gate driving circuit capable of reducing stress applied to a pull-down transistor, and a display panel including the same. 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The gate driving circuit according to an embodiment of the present disclosure includes: a control unit which charges and discharges a first control node pulling up an output voltage and a second control node pulling down the output voltage; an output unit including a pull-up transistor which applies a gate-high voltage to an output node in response to a charging voltage of the first control node, and a pull-down transistor which applies a gate-low voltage to the output node in response to a charging voltage of the second control node; a sensing unit which senses a threshold voltage of the pull-down transistor; and a compensation unit which changes the charging voltage of the second control node in response to an output of the sensing unit. 실시예에 의한 게이트 구동회로 및 이를 포함하는 표시 패널이 개시된다. 실시예에 따른 게이트 구동회로는 출력 전압을 풀업시키는 제1 제어 노드와, 상기 출력 전압을 풀다운시키는 제2 제어 노드를 충방전하는 제어부; 상기 제1 제어 노드의 충전 전압에 응답하여 게이트 하이 전압을 출력 노드에 인가하는 풀업 트랜지스터와, 상기 제2 제어 노드의 충전 전압에 응답하여 게이트 로우 전압을 상기 출력 노드에 인가하는 풀다운 트랜지스터를 포함하는 출력부; 상기 풀다운 트랜지스터의 문턱 전압을 센싱하는 센싱부; 및 상기 센싱부의 출력에 응답하여 상기 제2 제어 노드의 충전 전압을 변경하는 보상부를 포함한다.</abstract><oa>free_for_read</oa></addata></record>
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subjects ADVERTISING
ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICESUSING STATIC MEANS TO PRESENT VARIABLE INFORMATION
CRYPTOGRAPHY
DISPLAY
EDUCATION
PHYSICS
SEALS
title GATE DRIVING CIRCUIR AND DISPLAY PANEL INCLUDING THE SAME
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