CN115023750B - 显示画面的射出光的检测方法以及显示装置 - Google Patents

显示画面的射出光的检测方法以及显示装置 Download PDF

Info

Publication number
CN115023750B
CN115023750B CN202180011414.2A CN202180011414A CN115023750B CN 115023750 B CN115023750 B CN 115023750B CN 202180011414 A CN202180011414 A CN 202180011414A CN 115023750 B CN115023750 B CN 115023750B
Authority
CN
China
Prior art keywords
light
display screen
display device
emitted
display
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
CN202180011414.2A
Other languages
English (en)
Chinese (zh)
Other versions
CN115023750A (zh
Inventor
林昭宪
伴场裕介
堂前亮辅
伊藤广
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.)
Eizo Corp
Original Assignee
Eizo Corp
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 Eizo Corp filed Critical Eizo Corp
Publication of CN115023750A publication Critical patent/CN115023750A/zh
Application granted granted Critical
Publication of CN115023750B publication Critical patent/CN115023750B/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
    • 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]
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J1/00—Photometry, e.g. photographic exposure meter
    • G01J1/02—Details
    • G01J1/0238—Details making use of sensor-related data, e.g. for identification of sensor or optical parts
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J1/00—Photometry, e.g. photographic exposure meter
    • G01J1/58—Photometry, e.g. photographic exposure meter using luminescence generated by light
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices 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
    • G02F1/01—Devices 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 for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices 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 for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices 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
    • G02F1/01—Devices 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 for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices 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 for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
    • 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
    • G09G3/2092—Details of a display terminals using a flat panel, the details relating to the control arrangement of the display terminal and to the interfaces 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
    • 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
    • G09G3/34—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 by control of light from an independent source
    • G09G3/36—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 by control of light from an independent source using liquid crystals
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J1/00—Photometry, e.g. photographic exposure meter
    • G01J1/02—Details
    • G01J1/04—Optical or mechanical part supplementary adjustable parts
    • G01J1/0407—Optical elements not provided otherwise, e.g. manifolds, windows, holograms, gratings
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J3/00—Spectrometry; Spectrophotometry; Monochromators; Measuring colours
    • G01J3/46—Measurement of colour; Colour measuring devices, e.g. colorimeters
    • G01J3/50—Measurement of colour; Colour measuring devices, e.g. colorimeters using electric radiation detectors
    • G01J3/506—Measurement of colour; Colour measuring devices, e.g. colorimeters using electric radiation detectors measuring the colour produced by screens, monitors, displays or CRTs
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2320/00—Control of display operating conditions
    • G09G2320/02—Improving the quality of display appearance
    • G09G2320/0233—Improving the luminance or brightness uniformity across the screen
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2320/00—Control of display operating conditions
    • G09G2320/02—Improving the quality of display appearance
    • G09G2320/0242—Compensation of deficiencies in the appearance of colours
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2320/00—Control of display operating conditions
    • G09G2320/02—Improving the quality of display appearance
    • G09G2320/0285—Improving the quality of display appearance using tables for spatial correction of display data
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2320/00—Control of display operating conditions
    • G09G2320/06—Adjustment of display parameters
    • G09G2320/0693—Calibration of display systems
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2360/00—Aspects of the architecture of display systems
    • G09G2360/14—Detecting light within display terminals, e.g. using a single or a plurality of photosensors
    • G09G2360/145—Detecting light within display terminals, e.g. using a single or a plurality of photosensors the light originating from the display screen

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Nonlinear Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Computer Hardware Design (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Optics & Photonics (AREA)
  • Mathematical Physics (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)
  • Liquid Crystal (AREA)
  • Liquid Crystal Display Device Control (AREA)
  • Control Of Indicators Other Than Cathode Ray Tubes (AREA)
  • Control Of El Displays (AREA)
CN202180011414.2A 2020-02-21 2021-02-10 显示画面的射出光的检测方法以及显示装置 Active CN115023750B (zh)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2020-028753 2020-02-21
JP2020028753 2020-02-21
PCT/JP2021/005106 WO2021166780A1 (ja) 2020-02-21 2021-02-10 表示画面からの出射光の検知方法、および表示装置

Publications (2)

Publication Number Publication Date
CN115023750A CN115023750A (zh) 2022-09-06
CN115023750B true CN115023750B (zh) 2023-08-15

Family

ID=77391978

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202180011414.2A Active CN115023750B (zh) 2020-02-21 2021-02-10 显示画面的射出光的检测方法以及显示装置

Country Status (5)

Country Link
US (1) US20230138625A1 (https=)
JP (1) JP7152628B2 (https=)
CN (1) CN115023750B (https=)
TW (2) TWI776393B (https=)
WO (2) WO2021166780A1 (https=)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2022110015A1 (zh) * 2020-11-27 2022-06-02 京东方科技集团股份有限公司 显示基板、显示面板、显示装置
US20250080709A1 (en) * 2022-01-18 2025-03-06 Sony Group Corporation Measurement system, information processing apparatus, measurement method, and program

Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1497507A (zh) * 2002-10-17 2004-05-19 ������������ʽ���� 图像输入/输出设备及其图像信息读出方法
CN1641720A (zh) * 2004-01-13 2005-07-20 精工爱普生株式会社 电光学装置及其驱动方法、电子机器
JP2010014801A (ja) * 2008-07-01 2010-01-21 Sharp Corp 輝度データ取得装置及び液晶表示装置
EP2332138A1 (en) * 2008-09-01 2011-06-15 Barco NV Method and system for compensating ageing effects in light emitting diode display devices
JP2012199041A (ja) * 2011-03-22 2012-10-18 Sanken Electric Co Ltd バックライト装置及び液晶表示装置
CN103177660A (zh) * 2011-12-26 2013-06-26 佳能株式会社 图像显示设备
WO2013164015A1 (en) * 2012-04-30 2013-11-07 Barco N.V. A display integrated semitransparent sensor system and use thereof
CN103477272A (zh) * 2010-12-31 2013-12-25 巴科股份有限公司 用于测量和隔离环境光的显示设备和手段
JP2016061876A (ja) * 2014-09-17 2016-04-25 キヤノン株式会社 画像表示装置、校正装置、導光部材、画像表示装置の制御方法、校正装置の制御方法、及び、プログラム
US9622326B1 (en) * 2015-12-18 2017-04-11 Amazon Technologies, Inc. Method and device for determining emitted light intensity level
JP2019113772A (ja) * 2017-12-25 2019-07-11 Ｎｅｃディスプレイソリューションズ株式会社 表示装置の画面輝度検出装置及び画面輝度検出方法

Family Cites Families (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1291386B1 (en) * 2000-05-31 2008-06-25 Zeon Corporation Resin composition
JP2005128089A (ja) * 2003-10-21 2005-05-19 Tohoku Pioneer Corp 発光表示装置
JP2005173184A (ja) * 2003-12-11 2005-06-30 Casio Comput Co Ltd 表示装置及びその駆動制御方法
US8040341B2 (en) * 2004-01-09 2011-10-18 O2Micro Inc Brightness control system
JP2006058760A (ja) * 2004-08-23 2006-03-02 Mitsubishi Electric Corp 表示パネル装置
JP2006323311A (ja) * 2005-05-20 2006-11-30 Sharp Corp 表示装置
JP2007086277A (ja) * 2005-09-21 2007-04-05 Seiko Epson Corp 電気光学装置、画像処理装置、画像処理方法および電子機器
JP4497140B2 (ja) * 2005-10-18 2010-07-07 ソニー株式会社 バックライト、表示装置及び光源制御方法
JP5008017B2 (ja) * 2006-02-10 2012-08-22 ソニーモバイルディスプレイ株式会社 表示装置
JP5058631B2 (ja) * 2006-03-03 2012-10-24 日本電気株式会社 光源装置、表示装置、端末装置及びそれらの制御方法
KR100917582B1 (ko) * 2006-08-10 2009-09-15 주식회사 엘지화학 비접촉식 좌표입력 시스템용 도광판을 이용한 비접촉식좌표입력 방법
JP4475312B2 (ja) * 2007-10-01 2010-06-09 エプソンイメージングデバイス株式会社 液晶表示装置及び電子機器
JP5182217B2 (ja) * 2009-05-18 2013-04-17 ソニー株式会社 表示制御装置、表示装置、および表示制御方法、並びにプログラム
US20120044224A1 (en) * 2009-05-19 2012-02-23 Sharp Kabushiki Kaisha Liquid crystal display device
JP5039104B2 (ja) * 2009-08-26 2012-10-03 株式会社ナナオ 発光強度測定方法、発光強度測定装置及びコンピュータプログラム
US8786197B2 (en) * 2010-10-27 2014-07-22 Tsmc Solid State Lighting Ltd. Method and system for adjusting light output from a light source
GB2486921A (en) * 2010-12-31 2012-07-04 Barco Nv Compensating for age effects in active matrix displays
JP4951711B1 (ja) * 2011-06-14 2012-06-13 株式会社ナナオ 光センサ装置及び画像表示装置。
WO2014110191A1 (en) * 2013-01-08 2014-07-17 Peripheral Vision, Inc. Lighting system characterization
KR102357505B1 (ko) * 2014-07-25 2022-02-04 삼성디스플레이 주식회사 표시장치
US10169630B2 (en) * 2015-12-03 2019-01-01 Synaptics Incorporated Optical sensor for integration over a display backplane
JP2017161754A (ja) * 2016-03-10 2017-09-14 キヤノン株式会社 表示装置の測定装置及びその制御方法
CN106941541B (zh) * 2017-03-07 2018-07-03 广东欧珀移动通信有限公司 功能组件、显示装置及终端

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1497507A (zh) * 2002-10-17 2004-05-19 ������������ʽ���� 图像输入/输出设备及其图像信息读出方法
CN1641720A (zh) * 2004-01-13 2005-07-20 精工爱普生株式会社 电光学装置及其驱动方法、电子机器
JP2010014801A (ja) * 2008-07-01 2010-01-21 Sharp Corp 輝度データ取得装置及び液晶表示装置
EP2332138A1 (en) * 2008-09-01 2011-06-15 Barco NV Method and system for compensating ageing effects in light emitting diode display devices
CN103477272A (zh) * 2010-12-31 2013-12-25 巴科股份有限公司 用于测量和隔离环境光的显示设备和手段
JP2012199041A (ja) * 2011-03-22 2012-10-18 Sanken Electric Co Ltd バックライト装置及び液晶表示装置
CN103177660A (zh) * 2011-12-26 2013-06-26 佳能株式会社 图像显示设备
WO2013164015A1 (en) * 2012-04-30 2013-11-07 Barco N.V. A display integrated semitransparent sensor system and use thereof
JP2016061876A (ja) * 2014-09-17 2016-04-25 キヤノン株式会社 画像表示装置、校正装置、導光部材、画像表示装置の制御方法、校正装置の制御方法、及び、プログラム
US9622326B1 (en) * 2015-12-18 2017-04-11 Amazon Technologies, Inc. Method and device for determining emitted light intensity level
JP2019113772A (ja) * 2017-12-25 2019-07-11 Ｎｅｃディスプレイソリューションズ株式会社 表示装置の画面輝度検出装置及び画面輝度検出方法

Also Published As

Publication number Publication date
TWI774242B (zh) 2022-08-11
TW202132751A (zh) 2021-09-01
US20230138625A1 (en) 2023-05-04
CN115023750A (zh) 2022-09-06
WO2021166780A1 (ja) 2021-08-26
JPWO2021166780A1 (https=) 2021-08-26
TW202141004A (zh) 2021-11-01
TWI776393B (zh) 2022-09-01
WO2021166796A1 (ja) 2021-08-26
JP7152628B2 (ja) 2022-10-12

Similar Documents

Publication Publication Date Title
KR101146194B1 (ko) 제어장치
JP3872810B1 (ja) 光源制御装置、照明装置及び液晶表示装置
KR100702374B1 (ko) 광원 장치 및 표시 장치
US12455482B2 (en) Electronic apparatus incorporating a liquid crystal element
US9074929B2 (en) Image display apparatus having a light guide unit refracting incident light from a screen to a sensor
CN115023750B (zh) 显示画面的射出光的检测方法以及显示装置
JP2011048191A (ja) 表示装置
KR20150057743A (ko) 지향성 백라이트 유닛, 지향성 백라이트 유닛의 작동 방법 및 상기 지향성 백라이트 유닛을 포함하는 디스플레이 디바이스
US20170352330A1 (en) Optimizing Light Output Profile For Dual-Modulation Display Performance
JP2012199041A (ja) バックライト装置及び液晶表示装置
KR20050121578A (ko) 백라이트 유닛
CN113641034A (zh) 光学模块及背光模组
WO2013108646A1 (ja) 表示装置
JP2010217406A (ja) 液晶表示装置
KR101930380B1 (ko) 이동 단말기
KR102472917B1 (ko) 직하형 백라이트 유닛
JP2023013929A (ja) 表示装置
TWI551923B (zh) A backlight unit and a display device provided with the backlight unit, and controls the machine
CN104930402A (zh) 提升背光模组亮度均匀性的方法
KR20040072743A (ko) 액정 디스플레이 패널의 백라이트 반사판
CN115810309A (zh) 显示面板支撑结构体及包括其的显示装置
WO2013058260A1 (ja) 表示装置
JP2016009171A (ja) 表示装置

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant