CN114207698A - 电源管理装置和显示设备 - Google Patents

电源管理装置和显示设备 Download PDF

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Publication number
CN114207698A
CN114207698A CN202080000766.3A CN202080000766A CN114207698A CN 114207698 A CN114207698 A CN 114207698A CN 202080000766 A CN202080000766 A CN 202080000766A CN 114207698 A CN114207698 A CN 114207698A
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China
Prior art keywords
circuit
voltage
transistor
sub
electrically connected
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CN202080000766.3A
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CN114207698B (zh
Inventor
张银龙
孙志华
姚树林
马文鹏
胡鹏飞
赵亮亮
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BOE Technology Group Co Ltd
Beijing BOE Display Technology Co Ltd
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BOE Technology Group Co Ltd
Beijing BOE Display Technology Co Ltd
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Publication of CN114207698A publication Critical patent/CN114207698A/zh
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    • 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
    • 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
    • G09G3/3611—Control of matrices with row and column drivers
    • 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
    • G09G2310/0264—Details of driving circuits
    • G09G2310/0291—Details of output amplifiers or buffers arranged for use in a driving circuit
    • 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
    • G09G2320/0271—Adjustment of the gradation levels within the range of the gradation scale, e.g. by redistribution or clipping
    • G09G2320/0276—Adjustment of the gradation levels within the range of the gradation scale, e.g. by redistribution or clipping for the purpose of adaptation to the characteristics of a display device, i.e. gamma correction
    • 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
    • G09G2320/0673—Adjustment of display parameters for control of gamma adjustment, e.g. selecting another gamma curve
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2330/00—Aspects of power supply; Aspects of display protection and defect management
    • G09G2330/02—Details of power systems and of start or stop of display operation
    • G09G2330/021—Power management, e.g. power saving
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2330/00—Aspects of power supply; Aspects of display protection and defect management
    • G09G2330/02—Details of power systems and of start or stop of display operation
    • G09G2330/028—Generation of voltages supplied to electrode drivers in a matrix display other than LCD

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Control Of Indicators Other Than Cathode Ray Tubes (AREA)

Abstract

一种电源管理装置和显示装置，电源管理装置包括初始电压输入端(VIN)、电源管理电路(110)和多个伽马矫正电路(120)，初始电压输入端(VIN)用于提供初始电压；电源管理电路(110)包括至少一个跟随放大子电路，各个跟随放大子电路用于根据初始电压、基准电压和目标工作电压设置参数输出相应的目标工作电压；各个伽马校正电路(120)用于根据初始电压、基准电压和相应的伽马参数输出相应的伽马校正电压。

Description

PCT国内申请，说明书已公开。

Claims (17)

  1. PCT国内申请，权利要求书已公开。
CN202080000766.3A 2020-05-19 2020-05-19 电源管理装置和显示设备 Active CN114207698B (zh)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2020/091000 WO2021232225A1 (zh) 2020-05-19 2020-05-19 电源管理装置和显示设备

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CN114207698A true CN114207698A (zh) 2022-03-18
CN114207698B CN114207698B (zh) 2023-12-22

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US (1) US11488507B2 (zh)
CN (1) CN114207698B (zh)
WO (1) WO2021232225A1 (zh)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115206226A (zh) * 2022-09-07 2022-10-18 惠科股份有限公司 显示驱动电路和显示面板

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* Cited by examiner, † Cited by third party
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CN114336502B (zh) * 2021-12-13 2024-06-25 重庆惠科金渝光电科技有限公司 过电流保护控制方法及无门驱动芯片

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US20050128113A1 (en) * 2003-12-12 2005-06-16 Samsung Electronics Co., Ltd. Gamma correction D/A converter, source driver integrated circuit and display having the same and D/A converting method using gamma correction
KR20140030422A (ko) * 2012-08-28 2014-03-12 엘지디스플레이 주식회사 감마기준전압 발생회로 및 그를 포함한 액정표시장치
CN106057113A (zh) * 2015-04-03 2016-10-26 三星显示有限公司 电源管理驱动器和具有电源管理驱动器的显示设备
CN107705770A (zh) * 2017-11-22 2018-02-16 深圳市华星光电技术有限公司 基于数字pmic的伽马电压输出电路
CN108847184A (zh) * 2018-07-09 2018-11-20 京东方科技集团股份有限公司 伽马电压补偿电路及补偿方法、源极驱动器和显示面板
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CN209249057U (zh) * 2018-12-24 2019-08-13 惠科股份有限公司 显示面板的驱动电路及显示装置

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US20050128113A1 (en) * 2003-12-12 2005-06-16 Samsung Electronics Co., Ltd. Gamma correction D/A converter, source driver integrated circuit and display having the same and D/A converting method using gamma correction
KR20140030422A (ko) * 2012-08-28 2014-03-12 엘지디스플레이 주식회사 감마기준전압 발생회로 및 그를 포함한 액정표시장치
CN106057113A (zh) * 2015-04-03 2016-10-26 三星显示有限公司 电源管理驱动器和具有电源管理驱动器的显示设备
CN107705770A (zh) * 2017-11-22 2018-02-16 深圳市华星光电技术有限公司 基于数字pmic的伽马电压输出电路
CN108847184A (zh) * 2018-07-09 2018-11-20 京东方科技集团股份有限公司 伽马电压补偿电路及补偿方法、源极驱动器和显示面板
CN209249057U (zh) * 2018-12-24 2019-08-13 惠科股份有限公司 显示面板的驱动电路及显示装置
CN109830215A (zh) * 2019-02-20 2019-05-31 京东方科技集团股份有限公司 一种伽马校正电路、校正方法、源极驱动电路及显示面板

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115206226A (zh) * 2022-09-07 2022-10-18 惠科股份有限公司 显示驱动电路和显示面板

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WO2021232225A1 (zh) 2021-11-25
US11488507B2 (en) 2022-11-01
US20220122507A1 (en) 2022-04-21

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