CN102737571B - 显示装置及其驱动方法 - Google Patents

显示装置及其驱动方法 Download PDF

Info

Publication number
CN102737571B
CN102737571B CN201110365232.3A CN201110365232A CN102737571B CN 102737571 B CN102737571 B CN 102737571B CN 201110365232 A CN201110365232 A CN 201110365232A CN 102737571 B CN102737571 B CN 102737571B
Authority
CN
China
Prior art keywords
pixels
power supply
period
compensation
control signal
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN201110365232.3A
Other languages
English (en)
Chinese (zh)
Other versions
CN102737571A (zh
Inventor
李白云
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Samsung Display Co Ltd
Original Assignee
Samsung Mobile Display Co Ltd
Samsung Display Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Samsung Mobile Display Co Ltd, Samsung Display Co Ltd filed Critical Samsung Mobile Display Co Ltd
Priority to CN201710004226.2A priority Critical patent/CN106652873B/zh
Publication of CN102737571A publication Critical patent/CN102737571A/zh
Application granted granted Critical
Publication of CN102737571B publication Critical patent/CN102737571B/zh
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N13/00—Stereoscopic video systems; Multi-view video systems; Details thereof
    • H04N13/30—Image reproducers
    • H04N13/332—Displays for viewing with the aid of special glasses or head-mounted displays [HMD]
    • H04N13/341—Displays for viewing with the aid of special glasses or head-mounted displays [HMD] using temporal multiplexing
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/001—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes using specific devices not provided for in groups G09G3/02 - G09G3/36, e.g. using an intermediate record carrier such as a film slide; Projection systems; Display of non-alphanumerical information, solely or in combination with alphanumerical information, e.g. digital display on projected diapositive as background
    • G09G3/003—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes using specific devices not provided for in groups G09G3/02 - G09G3/36, e.g. using an intermediate record carrier such as a film slide; Projection systems; Display of non-alphanumerical information, solely or in combination with alphanumerical information, e.g. digital display on projected diapositive as background to produce spatial visual effects
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for 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
    • G09G3/22—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for 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 using controlled light sources
    • G09G3/30—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for 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 using controlled light sources using electroluminescent panels
    • G09G3/32—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for 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 using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED]
    • G09G3/3208—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for 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 using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED]
    • G09G3/3225—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for 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 using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED] using an active matrix
    • G09G3/3233—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for 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 using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED] using an active matrix with pixel circuitry controlling the current through the light-emitting element
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N13/00—Stereoscopic video systems; Multi-view video systems; Details thereof
    • H04N13/10—Processing, recording or transmission of stereoscopic or multi-view image signals
    • H04N13/106—Processing image signals
    • H04N13/139—Format conversion, e.g. of frame-rate or size
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N13/00—Stereoscopic video systems; Multi-view video systems; Details thereof
    • H04N13/30—Image reproducers
    • H04N13/398—Synchronisation thereof; Control thereof
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2300/00—Aspects of the constitution of display devices
    • G09G2300/08—Active matrix structure, i.e. with use of active elements, inclusive of non-linear two terminal elements, in the pixels together with light emitting or modulating elements
    • G09G2300/0809—Several active elements per pixel in active matrix panels
    • G09G2300/0819—Several active elements per pixel in active matrix panels used for counteracting undesired variations, e.g. feedback or autozeroing
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2310/00—Command of the display device
    • G09G2310/02—Addressing, scanning or driving the display screen or processing steps related thereto
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2310/00—Command of the display device
    • G09G2310/02—Addressing, scanning or driving the display screen or processing steps related thereto
    • G09G2310/0202—Addressing of scan or signal lines
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2310/00—Command of the display device
    • G09G2310/02—Addressing, scanning or driving the display screen or processing steps related thereto
    • G09G2310/0224—Details of interlacing
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2310/00—Command of the display device
    • G09G2310/02—Addressing, scanning or driving the display screen or processing steps related thereto
    • G09G2310/0243—Details of the generation of driving signals
    • G09G2310/0251—Precharge or discharge of pixel before applying new pixel voltage
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2340/00—Aspects of display data processing
    • G09G2340/04—Changes in size, position or resolution of an image
    • G09G2340/0407—Resolution change, inclusive of the use of different resolutions for different screen areas
    • G09G2340/0435—Change or adaptation of the frame rate of the video stream

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Control Of Indicators Other Than Cathode Ray Tubes (AREA)
  • Control Of El Displays (AREA)
  • Electroluminescent Light Sources (AREA)
CN201110365232.3A 2011-03-29 2011-11-17 显示装置及其驱动方法 Active CN102737571B (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201710004226.2A CN106652873B (zh) 2011-03-29 2011-11-17 显示装置及其驱动方法

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR10-2011-0028249 2011-03-29
KR1020110028249A KR101916921B1 (ko) 2011-03-29 2011-03-29 표시장치 및 그 구동방법

Related Child Applications (1)

Application Number Title Priority Date Filing Date
CN201710004226.2A Division CN106652873B (zh) 2011-03-29 2011-11-17 显示装置及其驱动方法

Publications (2)

Publication Number Publication Date
CN102737571A CN102737571A (zh) 2012-10-17
CN102737571B true CN102737571B (zh) 2017-03-01

Family

ID=46025360

Family Applications (2)

Application Number Title Priority Date Filing Date
CN201110365232.3A Active CN102737571B (zh) 2011-03-29 2011-11-17 显示装置及其驱动方法
CN201710004226.2A Active CN106652873B (zh) 2011-03-29 2011-11-17 显示装置及其驱动方法

Family Applications After (1)

Application Number Title Priority Date Filing Date
CN201710004226.2A Active CN106652873B (zh) 2011-03-29 2011-11-17 显示装置及其驱动方法

Country Status (5)

Country Link
US (1) US9584799B2 (enExample)
EP (3) EP2506241A3 (enExample)
JP (2) JP2012208459A (enExample)
KR (1) KR101916921B1 (enExample)
CN (2) CN102737571B (enExample)

Families Citing this family (31)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5680218B2 (ja) * 2011-11-17 2015-03-04 シャープ株式会社 表示装置およびその駆動方法
JP5726325B2 (ja) * 2011-11-17 2015-05-27 シャープ株式会社 表示装置およびその駆動方法
KR101997792B1 (ko) 2011-11-18 2019-07-09 삼성디스플레이 주식회사 화소, 이를 이용한 표시 장치 및 그 구동 방법
KR101978808B1 (ko) 2012-08-28 2019-05-16 삼성디스플레이 주식회사 표시 장치 및 그 구동 방법
TWI606418B (zh) * 2012-09-28 2017-11-21 輝達公司 圖形處理單元驅動程式產生內插的圖框之電腦系統及方法
KR101992339B1 (ko) * 2012-11-02 2019-10-01 삼성디스플레이 주식회사 유기 발광 표시 장치
KR102045546B1 (ko) * 2012-11-12 2019-12-03 삼성디스플레이 주식회사 화소, 이를 포함하는 표시 장치 및 그 구동 방법
KR101944508B1 (ko) * 2012-11-20 2019-02-01 삼성디스플레이 주식회사 표시장치, 표시장치의 신호 제어장치 및 신호 제어방법
CN102981339B (zh) * 2012-12-10 2016-12-21 京东方科技集团股份有限公司 阵列基板、3d显示装置及其驱动方法
CN102982741A (zh) * 2012-12-10 2013-03-20 京东方科技集团股份有限公司 阵列基板、3d显示装置及其驱动方法
CN103728752B (zh) * 2013-12-30 2016-03-30 深圳市华星光电技术有限公司 改善显示3d影像发生闪烁的液晶显示器
KR102417120B1 (ko) 2015-01-21 2022-07-06 삼성디스플레이 주식회사 유기발광표시장치
CN106611580A (zh) * 2015-10-22 2017-05-03 小米科技有限责任公司 内容显示方法及装置
CN106611579A (zh) * 2015-10-22 2017-05-03 小米科技有限责任公司 内容显示方法及装置
CN106611593A (zh) 2015-10-22 2017-05-03 小米科技有限责任公司 内容显示方法及装置
CN106611581A (zh) 2015-10-22 2017-05-03 小米科技有限责任公司 内容显示方法及装置
KR102501656B1 (ko) * 2016-05-31 2023-02-21 삼성디스플레이 주식회사 표시장치
KR102547079B1 (ko) * 2016-12-13 2023-06-26 삼성디스플레이 주식회사 표시 장치 및 이의 구동 방법
CN106652806B (zh) * 2016-12-15 2019-02-26 广东威创视讯科技股份有限公司 显示屏配置电源确定方法和系统
US10672338B2 (en) * 2017-03-24 2020-06-02 Apple Inc. Organic light-emitting diode display with external compensation and anode reset
CN107331338B (zh) * 2017-08-28 2021-08-17 京东方科技集团股份有限公司 一种阵列基板、显示装置及其检测方法
KR102531413B1 (ko) * 2018-08-07 2023-05-15 삼성디스플레이 주식회사 표시 장치
WO2020202292A1 (ja) * 2019-03-29 2020-10-08 シャープ株式会社 表示装置
WO2020217807A1 (ja) * 2019-04-25 2020-10-29 富士フイルム株式会社 画像の向き設定装置、方法およびプログラム
TWI738454B (zh) * 2019-08-20 2021-09-01 友達光電股份有限公司 畫素陣列基板
KR102754225B1 (ko) 2019-08-28 2025-01-13 삼성디스플레이 주식회사 표시 장치 및 그 구동 방법
KR102773177B1 (ko) 2020-04-14 2025-02-26 삼성디스플레이 주식회사 표시 장치
CN118212880A (zh) * 2020-10-15 2024-06-18 厦门天马微电子有限公司 像素电路、显示面板及其驱动方法和显示装置
CN115050308B (zh) * 2021-03-08 2025-02-18 隆达电子股份有限公司 显示器
WO2024053105A1 (ja) * 2022-09-09 2024-03-14 シャープディスプレイテクノロジー株式会社 制御装置及び表示装置
US20250225913A1 (en) * 2024-01-04 2025-07-10 Wuhan China Star Optoelectronics Technology Co., Ltd. Light boards and display panels

Family Cites Families (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01316092A (ja) * 1988-06-16 1989-12-20 Matsushita Electric Ind Co Ltd 立体表示装置
JPH07123447A (ja) 1993-10-22 1995-05-12 Sony Corp 画像信号記録方法および画像信号記録装置、画像信号再生方法および画像信号再生装置、画像信号符号化方法および画像信号符号化装置、画像信号復号化方法および画像信号復号化装置、ならびに画像信号記録媒体
JP2003122303A (ja) * 2001-10-16 2003-04-25 Matsushita Electric Ind Co Ltd Ｅｌ表示パネルおよびそれを用いた表示装置とその駆動方法
US7417648B2 (en) * 2002-01-07 2008-08-26 Samsung Electronics Co. Ltd., Color flat panel display sub-pixel arrangements and layouts for sub-pixel rendering with split blue sub-pixels
CA2380105A1 (en) * 2002-04-09 2003-10-09 Nicholas Routhier Process and system for encoding and playback of stereoscopic video sequences
KR20030090408A (ko) 2002-05-23 2003-11-28 엘지전자 주식회사 패시브 매트릭스 구조를 갖는 유기 ｅｌ 디스플레이장치의 인터레이싱 스캔 방법
JP2004145278A (ja) * 2002-08-30 2004-05-20 Seiko Epson Corp 電子回路、電子回路の駆動方法、電気光学装置、電気光学装置の駆動方法及び電子機器
JP2004120191A (ja) * 2002-09-25 2004-04-15 Sharp Corp 立体画像表示装置
EP1604347A1 (en) 2003-03-12 2005-12-14 Koninklijke Philips Electronics N.V. Light emissive active matrix display devices with optical feedback effective on the timing, to counteract ageing
JP2004341263A (ja) * 2003-05-16 2004-12-02 Hitachi Ltd 自発光素子表示方法および装置
KR100515318B1 (ko) 2003-07-30 2005-09-15 삼성에스디아이 주식회사 표시 장치와 그 구동 방법
KR100688798B1 (ko) * 2004-11-17 2007-03-02 삼성에스디아이 주식회사 발광 표시장치 및 그의 구동방법
CA2490858A1 (en) * 2004-12-07 2006-06-07 Ignis Innovation Inc. Driving method for compensated voltage-programming of amoled displays
JP2006317696A (ja) * 2005-05-12 2006-11-24 Sony Corp 画素回路および表示装置、並びに画素回路の制御方法
EP1793366A3 (en) 2005-12-02 2009-11-04 Semiconductor Energy Laboratory Co., Ltd. Semiconductor device, display device, and electronic device
KR101211343B1 (ko) 2005-12-29 2012-12-11 엘지디스플레이 주식회사 디스플레이 장치 및 그 구동 방법
KR100833753B1 (ko) * 2006-12-21 2008-05-30 삼성에스디아이 주식회사 유기 전계 발광 표시 장치 및 그 구동방법
JP2009109521A (ja) 2007-10-26 2009-05-21 Sony Corp 表示装置、表示装置の駆動方法および電子機器
EP2400482A4 (en) 2009-02-19 2012-08-01 Panasonic Corp IMAGE DISPLAY DEVICE AND IMAGE DISPLAY PROCESS
JP5439913B2 (ja) 2009-04-01 2014-03-12 セイコーエプソン株式会社 電気光学装置及びその駆動方法、並びに電子機器
JP2010250111A (ja) * 2009-04-16 2010-11-04 Hitachi Ltd 時分割２眼立体視に対応した表示装置
JP2010256420A (ja) * 2009-04-21 2010-11-11 Sony Corp 液晶表示装置および液晶表示装置の駆動方法
JP2011028135A (ja) * 2009-07-29 2011-02-10 Canon Inc 表示装置及びその駆動方法
KR101056281B1 (ko) * 2009-08-03 2011-08-11 삼성모바일디스플레이주식회사 유기 전계발광 표시장치 및 그의 구동방법
KR20110013693A (ko) 2009-08-03 2011-02-10 삼성모바일디스플레이주식회사 유기 전계발광 표시장치 및 그의 구동방법
US8487981B2 (en) 2009-09-04 2013-07-16 Broadcom Corporation Method and system for processing 2D/3D video
KR101125571B1 (ko) * 2010-02-05 2012-03-22 삼성모바일디스플레이주식회사 화소, 이를 이용한 표시 장치 및 그 구동 방법

Also Published As

Publication number Publication date
EP2506589A2 (en) 2012-10-03
JP6306099B2 (ja) 2018-04-04
EP2506241A2 (en) 2012-10-03
EP2506240A2 (en) 2012-10-03
JP2012208459A (ja) 2012-10-25
KR20120110413A (ko) 2012-10-10
EP2506589B1 (en) 2017-03-01
CN106652873A (zh) 2017-05-10
CN106652873B (zh) 2020-04-24
US9584799B2 (en) 2017-02-28
JP2016191940A (ja) 2016-11-10
EP2506589A3 (en) 2012-11-28
EP2506240A3 (en) 2012-12-05
CN102737571A (zh) 2012-10-17
US20120249615A1 (en) 2012-10-04
EP2506241A3 (en) 2014-11-05
KR101916921B1 (ko) 2018-11-09
EP2506240B1 (en) 2017-03-08

Similar Documents

Publication Publication Date Title
CN102737571B (zh) 显示装置及其驱动方法
KR101279661B1 (ko) 입체 영상 표시장치와 그 전원 제어방법
JP6784658B2 (ja) 表示装置およびその駆動方法
US9179137B2 (en) Gate driver and organic light emitting diode display including the same
US9049438B2 (en) Stereopsis display device and driving method thereof
EP2387023A2 (en) Organic light-emitting display device and method for driving thereof
CN100541576C (zh) 显示装置及显示装置的驱动方法
KR101978808B1 (ko) 표시 장치 및 그 구동 방법
KR20120129335A (ko) 화소 및 이를 포함하는 표시장치, 및 그 구동방법
KR20120133624A (ko) 화소 및 이를 포함하는 표시장치, 및 그 구동방법
JP5990743B2 (ja) 有機ｅｌ表示装置およびその駆動方法
KR101964078B1 (ko) 전기영동 디스플레이 장치와 이의 구동방법
KR101350622B1 (ko) 전계 발광 화소, 그를 포함한 전계 발광 패널, 그 전계발광 패널을 구동하는 구동 장치 및 방법
KR20100073321A (ko) 입체 영상 시스템
KR101211233B1 (ko) 액정 패널 및 그 구동 회로

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
ASS Succession or assignment of patent right

Owner name: SAMSUNG MONITOR CO., LTD.

Free format text: FORMER OWNER: SAMSUNG MOBILE DISPLAY CO., LTD.

Effective date: 20121030

C41 Transfer of patent application or patent right or utility model
TA01 Transfer of patent application right

Effective date of registration: 20121030

Address after: Gyeonggi Do, South Korea

Applicant after: Samsung Display Co., Ltd.

Address before: Gyeonggi Do, South Korea

Applicant before: Samsung Mobile Display Co., Ltd.

C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant