CN115968492A - 显示驱动电路及方法、led显示板和显示装置 - Google Patents
显示驱动电路及方法、led显示板和显示装置 Download PDFInfo
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- CN115968492A CN115968492A CN202080102691.XA CN202080102691A CN115968492A CN 115968492 A CN115968492 A CN 115968492A CN 202080102691 A CN202080102691 A CN 202080102691A CN 115968492 A CN115968492 A CN 115968492A
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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
- 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]
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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
- 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
- G09G2310/0286—Details of a shift registers arranged for use in a driving circuit
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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
- 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
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- G—PHYSICS
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- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2310/00—Command of the display device
- G09G2310/08—Details of timing specific for flat panels, other than clock recovery
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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
- 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
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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
- 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
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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
- G09G2360/00—Aspects of the architecture of display systems
- G09G2360/12—Frame memory handling
- G09G2360/121—Frame memory handling using a cache memory
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- Physics & Mathematics (AREA)
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- Theoretical Computer Science (AREA)
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
- Control Of El Displays (AREA)
Abstract
一种显示驱动电路(10)及方法、以及LED显示板(400)和显示装置(900)。显示驱动电路(10)包括:接口电路(11),用于获取多个灰度数据和多个电流增益数据;命令处理电路(12),耦接接口电路(11);缓存电路(13),耦接接口电路(11),用于缓存多个灰度数据和多个电流增益数据;电流源电路(15),耦接命令处理电路(12)且包括多个通道电流源(151);通道灰度控制电路(17),耦接命令处理电路(12)、缓存电路(13)和电流源电路(15),用于根据多个灰度数据分别控制多个通道电流源(151)的打开时长;以及通道电流控制电路(19),耦接缓存电路(13)和电流源电路(15),用于根据多个电流增益数据分别控制多个通道电流源(151)的输出电流大小。因此,可以实现通道电流动态调节以提升显示位深。
Description
PCT国内申请,说明书已公开。
Claims (20)
- PCT国内申请,权利要求书已公开。
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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PCT/CN2020/105425 WO2022021123A1 (zh) | 2020-07-29 | 2020-07-29 | 显示驱动电路及方法、led显示板和显示装置 |
Publications (1)
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CN115968492A true CN115968492A (zh) | 2023-04-14 |
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Application Number | Title | Priority Date | Filing Date |
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CN202080102691.XA Pending CN115968492A (zh) | 2020-07-29 | 2020-07-29 | 显示驱动电路及方法、led显示板和显示装置 |
Country Status (4)
Country | Link |
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US (1) | US12039915B2 (zh) |
KR (1) | KR20230022953A (zh) |
CN (1) | CN115968492A (zh) |
WO (1) | WO2022021123A1 (zh) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
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CN114582275A (zh) * | 2022-03-10 | 2022-06-03 | 中科芯集成电路有限公司 | 一种led显示驱动芯片的任意正整数组的均匀打散算法 |
CN115083339B (zh) * | 2022-07-26 | 2023-01-03 | 惠科股份有限公司 | 一种显示面板的驱动方法及驱动装置 |
CN116092419A (zh) * | 2022-12-09 | 2023-05-09 | 中科芯集成电路有限公司 | 一种led显示驱动芯片电流增益自动调节方法 |
CN116403517B (zh) * | 2023-06-09 | 2023-08-29 | 中科(深圳)无线半导体有限公司 | 一种led显示系统电源自适应控制方法 |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2008099979A2 (en) * | 2007-02-15 | 2008-08-21 | Xmpdisplay Co., Ltd. | Apparatus for driving led display panel |
US20090108768A1 (en) * | 2007-10-30 | 2009-04-30 | Chih-Hsiang Yang | Backlight control device and method for controlling a driving current of an led |
CN109147653A (zh) * | 2018-10-09 | 2019-01-04 | 中国电子科技集团公司第五十八研究所 | 一种led驱动芯片显示控制os-pwm方法 |
CN208580563U (zh) * | 2018-08-13 | 2019-03-05 | 深圳市奥拓电子股份有限公司 | Led驱动芯片及led显示屏 |
CN110191536A (zh) * | 2019-05-24 | 2019-08-30 | 亿信科技发展有限公司 | 驱动控制电路、驱动控制芯片、集成封装器件、显示系统和稀疏驱动的方法 |
CN110277052A (zh) * | 2019-06-13 | 2019-09-24 | 华中科技大学 | 多行扫高刷新率的全彩led驱动芯片及驱动方法 |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3344080B2 (ja) * | 1994-05-20 | 2002-11-11 | 日亜化学工業株式会社 | マルチカラーのledディスプレイユニット |
CN101930349B (zh) | 2010-08-16 | 2012-01-11 | 深圳市洲明科技股份有限公司 | Led扫描控制芯片 |
CN102708803B (zh) * | 2012-06-27 | 2015-11-04 | 重庆邮电大学 | 实现led恒流驱动器灰度等级可控的方法及恒流驱动器 |
CN102779480B (zh) | 2012-08-17 | 2015-04-15 | 深圳市易事达电子股份有限公司 | 显示屏驱动电路及发光二极管显示装置 |
TWI697883B (zh) * | 2019-03-28 | 2020-07-01 | 聚積科技股份有限公司 | 顯示系統及其驅動電路 |
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2020
- 2020-07-29 US US18/015,845 patent/US12039915B2/en active Active
- 2020-07-29 WO PCT/CN2020/105425 patent/WO2022021123A1/zh active Application Filing
- 2020-07-29 CN CN202080102691.XA patent/CN115968492A/zh active Pending
- 2020-07-29 KR KR1020237000268A patent/KR20230022953A/ko not_active Application Discontinuation
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2008099979A2 (en) * | 2007-02-15 | 2008-08-21 | Xmpdisplay Co., Ltd. | Apparatus for driving led display panel |
US20090108768A1 (en) * | 2007-10-30 | 2009-04-30 | Chih-Hsiang Yang | Backlight control device and method for controlling a driving current of an led |
CN208580563U (zh) * | 2018-08-13 | 2019-03-05 | 深圳市奥拓电子股份有限公司 | Led驱动芯片及led显示屏 |
CN109147653A (zh) * | 2018-10-09 | 2019-01-04 | 中国电子科技集团公司第五十八研究所 | 一种led驱动芯片显示控制os-pwm方法 |
CN110191536A (zh) * | 2019-05-24 | 2019-08-30 | 亿信科技发展有限公司 | 驱动控制电路、驱动控制芯片、集成封装器件、显示系统和稀疏驱动的方法 |
CN110277052A (zh) * | 2019-06-13 | 2019-09-24 | 华中科技大学 | 多行扫高刷新率的全彩led驱动芯片及驱动方法 |
Also Published As
Publication number | Publication date |
---|---|
WO2022021123A1 (zh) | 2022-02-03 |
KR20230022953A (ko) | 2023-02-16 |
US12039915B2 (en) | 2024-07-16 |
US20230267875A1 (en) | 2023-08-24 |
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