CN111868814A - 屏幕亮度调节方法及终端 - Google Patents

屏幕亮度调节方法及终端 Download PDF

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CN111868814A
CN111868814A CN201880091181.XA CN201880091181A CN111868814A CN 111868814 A CN111868814 A CN 111868814A CN 201880091181 A CN201880091181 A CN 201880091181A CN 111868814 A CN111868814 A CN 111868814A
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pulse
signal
target brightness
brightness
pixel
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CN111868814B (zh
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张秀峰
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Huawei Technologies Co Ltd
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Huawei Technologies Co Ltd
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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]
    • 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
    • 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
    • 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
    • G09G2300/0842—Several active elements per pixel in active matrix panels forming a memory circuit, e.g. a dynamic memory with one capacitor
    • G09G2300/0861—Several active elements per pixel in active matrix panels forming a memory circuit, e.g. a dynamic memory with one capacitor with additional control of the display period without amending the charge stored in a pixel memory, e.g. by means of additional select electrodes
    • 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
    • G09G2320/06—Adjustment of display parameters
    • G09G2320/0626—Adjustment of display parameters for control of overall brightness
    • 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
    • G09G2320/0626—Adjustment of display parameters for control of overall brightness
    • G09G2320/064—Adjustment of display parameters for control of overall brightness by time modulation of the brightness of the illumination source

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  • Engineering & Computer Science (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)

Abstract

本申请提供一种屏幕亮度调节方法及终端，涉及终端技术领域，能够解决EM调光的调光精度与平滑度低的问题。该方法包括：确定目标亮度，根据目标亮度计算实现目标亮度需要点亮的像素行数；如果实现目标亮度需要点亮的像素行数大于或等于设定的发射EM信号所能包含的最大脉冲数量，则根据实现目标亮度需要点亮的像素行数及设定的EM信号所能包含的最大脉冲数量，确定实现目标亮度所需要的EM信号中每个脉冲所控制的像素行数；根据所确定的实现目标亮度所需要的EM信号中每个脉冲所控制的像素行数，调整当前EM信号中至少一个脉冲的脉宽，以改变EM信号的占空比，占空比用于反映EM信号控制点亮的像素行数。本申请适用于屏幕亮度调节过程。

Description

PCT国内申请，说明书已公开。

Claims (15)

  1. PCT国内申请，权利要求书已公开。
CN201880091181.XA 2018-03-27 2018-03-27 屏幕亮度调节方法及终端 Active CN111868814B (zh)

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PCT/CN2018/080725 WO2019183811A1 (zh) 2018-03-27 2018-03-27 屏幕亮度调节方法及终端

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JP (1) JP7164126B2 (zh)
KR (1) KR102549917B1 (zh)
CN (1) CN111868814B (zh)
WO (1) WO2019183811A1 (zh)

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CN113903299A (zh) * 2021-09-01 2022-01-07 北京集创北方科技股份有限公司 显示亮度调控方法、装置、设备、存储介质和显示屏
CN114584752A (zh) * 2020-11-30 2022-06-03 华为技术有限公司 图像颜色还原方法及相关设备
CN114822394A (zh) * 2022-05-05 2022-07-29 武汉天马微电子有限公司 显示面板的调光方法、装置、设备及计算机可读存储介质
CN114998943A (zh) * 2021-12-24 2022-09-02 荣耀终端有限公司 数据采集方法及电子设备
CN115547236A (zh) * 2022-10-25 2022-12-30 厦门天马显示科技有限公司 显示面板及其驱动方法、显示装置

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US11935480B2 (en) * 2020-06-01 2024-03-19 Kopin Corporation Apparatuses, systems, and methods for dimming displays
CN111599296B (zh) * 2020-06-02 2022-09-13 昆山国显光电有限公司 显示屏的调光方法及装置
CN112071274B (zh) * 2020-09-15 2023-04-07 北京集创北方科技股份有限公司 亮度调节方法、装置及显示设备
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CN114584752A (zh) * 2020-11-30 2022-06-03 华为技术有限公司 图像颜色还原方法及相关设备
CN114584752B (zh) * 2020-11-30 2024-02-02 华为技术有限公司 图像颜色还原方法及相关设备
CN113903299A (zh) * 2021-09-01 2022-01-07 北京集创北方科技股份有限公司 显示亮度调控方法、装置、设备、存储介质和显示屏
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CN115547236A (zh) * 2022-10-25 2022-12-30 厦门天马显示科技有限公司 显示面板及其驱动方法、显示装置

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US20210035495A1 (en) 2021-02-04
JP7164126B2 (ja) 2022-11-01
JP2021517275A (ja) 2021-07-15
KR20200132984A (ko) 2020-11-25
KR102549917B1 (ko) 2023-06-29
US11138928B2 (en) 2021-10-05
WO2019183811A1 (zh) 2019-10-03
CN111868814B (zh) 2021-11-09

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