WO2017190539A1 - 高动态对比度显示屏的驱动方法、驱动装置以及显示屏 - Google Patents

高动态对比度显示屏的驱动方法、驱动装置以及显示屏 Download PDF

Info

Publication number
WO2017190539A1
WO2017190539A1 PCT/CN2017/072986 CN2017072986W WO2017190539A1 WO 2017190539 A1 WO2017190539 A1 WO 2017190539A1 CN 2017072986 W CN2017072986 W CN 2017072986W WO 2017190539 A1 WO2017190539 A1 WO 2017190539A1
Authority
WO
WIPO (PCT)
Prior art keywords
brightness
backlight
backlight module
image data
displayed
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.)
Ceased
Application number
PCT/CN2017/072986
Other languages
English (en)
French (fr)
Inventor
周呈祺
褚怡芳
栗首
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.)
BOE Technology Group Co Ltd
Beijing BOE Display Technology Co Ltd
Original Assignee
BOE Technology Group Co Ltd
Beijing BOE Display Technology 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 BOE Technology Group Co Ltd, Beijing BOE Display Technology Co Ltd filed Critical BOE Technology Group Co Ltd
Priority to US15/548,863 priority Critical patent/US10462379B2/en
Publication of WO2017190539A1 publication Critical patent/WO2017190539A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Images

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
    • G09G3/34—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
    • G09G3/3406—Control of illumination source
    • G09G3/342—Control of illumination source using several illumination sources separately controlled corresponding to different display panel areas, e.g. along one dimension such as lines
    • G09G3/3426—Control of illumination source using several illumination sources separately controlled corresponding to different display panel areas, e.g. along one dimension such as lines the different display panel areas being distributed in two dimensions, e.g. matrix
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/70—Circuitry for compensating brightness variation in the scene
    • H04N23/741—Circuitry for compensating brightness variation in the scene by increasing the dynamic range of the image compared to the dynamic range of the electronic image sensors
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T1/00—General purpose image data processing
    • G06T1/0007—Image acquisition
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T5/00—Image enhancement or restoration
    • G06T5/90—Dynamic range modification of images or parts thereof
    • G06T5/94—Dynamic range modification of images or parts thereof based on local image properties, e.g. for local contrast enhancement
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T7/00—Image analysis
    • G06T7/10—Segmentation; Edge detection
    • G06T7/11—Region-based segmentation
    • 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
    • G09G3/3406—Control of illumination source
    • 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
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T2207/00—Indexing scheme for image analysis or image enhancement
    • G06T2207/20—Special algorithmic details
    • G06T2207/20004—Adaptive image processing
    • G06T2207/20012—Locally adaptive
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T2207/00—Indexing scheme for image analysis or image enhancement
    • G06T2207/20—Special algorithmic details
    • G06T2207/20172—Image enhancement details
    • G06T2207/20208—High dynamic range [HDR] image processing
    • 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
    • G09G2320/0646—Modulation of illumination source brightness and image signal correlated to each other
    • 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
    • G09G2360/16—Calculation or use of calculated indices related to luminance levels in display data

Definitions

  • Embodiments of the present disclosure relate to a driving method, a driving device, and a display screen of a high dynamic contrast display screen.
  • an embodiment of the present disclosure provides a driving method for a high dynamic contrast display screen, including: acquiring image data to be displayed; determining local backlight brightness of each region in the backlight module according to the image data to be displayed; The partial backlight brightness and the maximum backlight brightness in the backlight module are adjusted, and the brightness of the pixel corresponding to the image data to be displayed is adjusted; and the brightness is displayed according to the adjusted brightness and the determined partial backlight brightness of each area.
  • the adjusting the brightness of the image data to be displayed according to the local backlight brightness and the maximum backlight brightness in the backlight module includes: according to the image data to be displayed. Determining the original pixel brightness; adjusting the original pixel brightness according to the local backlight brightness and the maximum backlight brightness in the backlight module.
  • adjusting the original pixel brightness according to the local backlight brightness and the maximum backlight brightness in the backlight module includes: adjusting the original pixel brightness by using the following formula, Y 0 is the original pixel brightness, Y is the adjusted pixel brightness, BL max is the maximum backlight brightness in the backlight module, BL DB is the partial backlight brightness of the backlight module, and a is an adjustable parameter.
  • the BL DB is a partial backlight brightness of the dynamically adjusted backlight module.
  • the value of a ranges from 1/8 to 1.
  • the smaller the local backlight brightness in the backlight module is determined, the smaller the brightness corresponding to the image data to be displayed.
  • An embodiment of the present disclosure further provides a driving device for a high dynamic contrast display screen, comprising: a receiving unit configured to acquire image data to be displayed; and a backlight control unit configured to determine a backlight according to the image data to be displayed a partial backlight brightness of each area in the module; the pixel compensation unit is configured to adjust brightness corresponding to the image data to be displayed according to the local backlight brightness and the maximum backlight brightness in the backlight module; the display control unit is The display is configured to display according to the adjusted brightness and the determined local backlight brightness of each of the regions.
  • the pixel compensation unit is configured to: determine an original pixel brightness according to the image data to be displayed; according to the partial backlight brightness and the maximum of the backlight module The backlight brightness is adjusted to adjust the original pixel brightness.
  • the pixel compensation unit is configured to adjust the original pixel brightness by using the following formula: Y 0 is the original pixel brightness, Y is the adjusted pixel brightness, BL max is the maximum backlight brightness in the backlight module, BL DB is the partial backlight brightness of the backlight module, and a is an adjustable parameter.
  • the BL DB is a partial backlight brightness of the dynamically adjusted backlight module.
  • the value of a ranges from 1/8 to 1.
  • the smaller the local backlight brightness in the backlight module is determined, the smaller the brightness corresponding to the image data to be displayed.
  • Embodiments of the present disclosure also provide a high dynamic contrast display including a backlight module and a driving device provided by any of the embodiments of the present disclosure.
  • FIG. 1 is a schematic diagram showing the relationship between an electro-optical conversion function curve after data compensation and an electro-optic conversion function curve without data compensation by using the existing method
  • FIG. 2 is a flowchart of a driving method of a high dynamic contrast display screen according to an embodiment of the present disclosure
  • FIG. 3 is a schematic diagram showing the relationship between an electro-optic conversion function curve and an electro-optic conversion function curve without data compensation by using the method provided by the embodiment of the present disclosure
  • FIG. 4 is a schematic diagram of a driving device for a high dynamic contrast display screen according to an embodiment of the present disclosure
  • FIG. 5 is a schematic diagram of a driving apparatus according to an embodiment of the present disclosure.
  • FIG. 6 is a schematic diagram of a high dynamic contrast display screen according to an embodiment of the present disclosure.
  • a backlight module using a direct-lit light-emitting diode (LED) backlight with local backlighting (Local Dimming) technology can greatly reduce the power consumption of the backlight module, increase the contrast and grayscale of the display screen, and reduce image sticking. .
  • LED direct-lit light-emitting diode
  • Lical Dimming local backlighting
  • a backlight module with local backlighting (Local Dimming) technology is utilized.
  • a backlight composed of hundreds of LEDs replaces the CCFL backlight.
  • the LEDs that make up the backlight can be adjusted according to the brightness of the image.
  • the corresponding LED in the highlighted image can be adjusted to the maximum brightness.
  • Simultaneous display of the corresponding dark LED in the image can be reduced or even turned off to achieve the best contrast.
  • reducing the brightness of the dark area in the backlight module reduces the overall power consumption of the backlight.
  • the backlight module is adjusted by the local backlight dynamic adjustment (Local Dimming) technology
  • the pixel data is generally compensated, and the following formula can be used for compensation.
  • BL is the standard backlight brightness
  • BL DB is the dynamic adjustment of the local backlight brightness
  • R is the original pixel data
  • RDB is the data compensation pixel data.
  • the electro-optical conversion function curve 01 is compared with the electro-optic conversion function curve 02 without data compensation. It can be seen that the lowest brightness after data compensation is high, so the display will be performed. The contrast has a certain effect, so it cannot meet the HDR contrast standard when applied to a high dynamic contrast display (HDR) with strict contrast requirements.
  • HDR high dynamic contrast display
  • a driving method of a high dynamic contrast display screen provided by an embodiment of the present disclosure, as shown in FIG. 2, includes the following steps:
  • S202 Determine local backlight brightness of each area in the backlight module according to image data to be displayed.
  • the driving method and the driving device of the high dynamic contrast display screen determine the backlight according to the image data to be displayed (for example, the brightness corresponding to the display image data) after acquiring (for example, receiving) the image data to be displayed.
  • the local backlight brightness of each area in the module, and then the brightness of the image data to be displayed is adjusted according to the local backlight brightness and the maximum backlight brightness in the backlight module to ensure the minimum brightness value after adjustment (for example, after data compensation) Low, meets the HDR contrast standard, and finally, displays according to the adjusted brightness and the local backlight brightness of each area in the determined backlight module.
  • step S202 according to the image data to be displayed, when the local backlight brightness of each area in the backlight module is determined, for example, a partial backlight dynamic adjustment (Local Dimming) technology is used to adjust the local backlight brightness of each area in the backlight module.
  • a partial backlight dynamic adjustment Local Dimming
  • step S203 in the driving method of the high dynamic contrast display screen provided by the embodiment of the present disclosure the brightness of the image data to be displayed is adjusted according to the local backlight brightness and the maximum backlight brightness in the backlight module, which can be realized by the following manner. :
  • the original pixel brightness is adjusted according to the local backlight brightness and the maximum backlight brightness in the backlight module.
  • the original pixel brightness when the original pixel brightness is adjusted according to the local backlight brightness and the maximum backlight brightness in the backlight module, the original pixel brightness can be adjusted by the following formula:
  • Y 0 is the original pixel brightness
  • Y is the adjusted pixel brightness
  • BL max is the maximum backlight brightness of the backlight module
  • BL DB is the partial backlight brightness of the backlight module
  • a is an adjustable parameter.
  • BL DB is the local backlight brightness of the dynamically adjusted backlight module.
  • a in the above formula ranges from 1/8 to 1.
  • the electro-optical conversion function curve 03 of the pixel brightness adjusted by the above formula, as shown in FIG. 3, can be seen to have a lower minimum brightness as compared with the electro-optical conversion function curve 02 without data compensation. Can meet the HDR contrast standard.
  • an embodiment of the present disclosure further provides a driving device for a high dynamic contrast display screen.
  • the principle of solving the problem is similar to the driving method of the foregoing high dynamic contrast display screen.
  • the implementation of the method refer to the implementation of the method, and the repetition will not be repeated.
  • the driving device of the high dynamic contrast display screen provided by the embodiment of the present disclosure, as shown in FIG. 4, includes:
  • a receiving unit 401 configured to acquire image data to be displayed
  • the backlight control unit 402 is configured to determine local backlight brightness of each area in the backlight module according to image data to be displayed;
  • a pixel compensation unit 403 configured to adjust brightness of the image data to be displayed according to local backlight brightness and maximum backlight brightness in the backlight module;
  • the display control unit 404 is configured to display according to the adjusted brightness and the local backlight brightness of each area in the determined backlight module.
  • the receiving unit 401, the backlight control unit 402, the pixel compensation unit 403, and the display control unit 404 in the embodiments of the present disclosure may be implemented by a circuit such as an integrated circuit.
  • the pixel compensation unit 403 is configured to determine an original pixel brightness according to the image data to be displayed; and perform original pixel brightness according to the local backlight brightness and the maximum backlight brightness in the backlight module. Adjustment.
  • the pixel compensation unit 403 adjusts the original pixel brightness by using the following formula:
  • Y 0 is the original pixel brightness
  • Y is the adjusted pixel brightness
  • BL max is the maximum backlight brightness of the backlight module
  • BL DB is the partial backlight brightness of the backlight module
  • a is an adjustable parameter.
  • BL DB is the local backlight brightness of the dynamically adjusted backlight module.
  • the value of a in the pixel compensation unit 403 ranges from 1/8 to 1.
  • the units in the embodiments of the present disclosure can be clearly understood by those skilled in the art through the description of the above embodiments. It can be implemented by hardware (for example, by means of an integrated circuit, an FPGA, etc.), or by means of software plus a necessary general hardware platform. Based on such understanding, the technical solution of the embodiments of the present disclosure may be embodied in the form of a software product, which may be stored in a non-volatile storage medium (which may be a CD-ROM, a USB flash drive, a mobile hard disk, etc.). A number of instructions are included to cause a computer device (which may be a personal computer, server, or network device, etc.) to perform the methods described in various embodiments of the present disclosure.
  • a computer device which may be a personal computer, server, or network device, etc.
  • the drive device 200 can include a memory 210 and a processor 220.
  • the drive device can include one or more processors and one or more memories.
  • the memory 210 and the processor 220 may implement various units in the drive device 200 (eg, The functions of the receiving unit 401, the backlight control unit 402, the pixel compensation unit 403, and the display control unit 404).
  • the processor may process the data signals, and may include various computing structures, such as a Complex Instruction Set Computer (CISC) structure, a Structured Reduced Instruction Set Computer (RISC) structure, or a combination of multiple instruction sets. Structure.
  • the processor can also be a microprocessor, such as an X86 processor or an ARM processor, or can be a digital processor (DSP) or the like.
  • the processor can control other components to perform the desired functions.
  • the memory may hold instructions and/or data executed by the processor.
  • the memory can include one or more computer program products, which can include various forms of computer readable storage media, such as volatile memory and/or nonvolatile memory.
  • the volatile memory may include, for example, a random access memory (RAM) and/or a cache or the like.
  • the nonvolatile memory may include, for example, a read only memory (ROM), a hard disk, a flash memory, or the like.
  • One or more computer program instructions can be stored on the computer readable storage medium, and the processor can execute the program instructions to implement the desired functionality (implemented by a processor) in the embodiments of the present disclosure described above.
  • Various applications and various data may also be stored in the computer readable storage medium, such as various data used and/or generated by the application, and the like.
  • an embodiment of the present disclosure further provides a high dynamic contrast display screen 10 including a backlight module 100 and a driving device 200 provided by any embodiment of the present disclosure.
  • modules in the apparatus in the embodiments may be distributed in the apparatus of the embodiment according to the description of the embodiments, or the corresponding changes may be located in one or more apparatuses different from the embodiment.
  • the modules of the above embodiments may be combined into one module, or may be further split into multiple sub-modules.
  • the driving method and the driving device of the high dynamic contrast display screen determine a part of each area in the backlight module according to the brightness of the image data to be displayed after acquiring (eg, receiving) the image data to be displayed.
  • Backlight brightness then adjust the brightness of the image data to be displayed according to the local backlight brightness and the maximum backlight brightness in the backlight module to ensure that the minimum brightness value after data compensation is low, satisfying the HDR contrast standard, and finally, according to the adjustment After The brightness and the determined local backlight brightness are displayed.

Landscapes

  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • Signal Processing (AREA)
  • Multimedia (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Liquid Crystal Display Device Control (AREA)
  • Control Of Indicators Other Than Cathode Ray Tubes (AREA)
  • Liquid Crystal (AREA)

Abstract

一种高动态对比度显示屏的驱动方法、驱动装置以及显示屏。驱动方法包括获取待显示图像数据（S201）；根据待显示图像数据的亮度，确定背光模组中各区域的局部背光亮度（S202）；根据局部背光亮度以及背光模组中最大背光亮度，调整待显示图像数据对应的亮度（S203）；根据调整后的亮度以及确定出的各区域的局部背光亮度进行显示（S204）。

Description

高动态对比度显示屏的驱动方法、驱动装置以及显示屏 技术领域
本公开的实施例涉及一种高动态对比度显示屏的驱动方法、驱动装置以及显示屏。
背景技术
目前，液晶显示屏的使用越来越广泛，如何降低液晶显示屏的功耗已受到关注。由于液晶显示屏中的背光模组是最大的能量消耗部件，因此降低背光的功耗就可以大大降低液晶显示屏整机的功耗。
发明内容
例如，本公开的实施例提供了一种高动态对比度显示屏的驱动方法，包括：获取待显示图像数据；根据所述待显示图像数据，确定背光模组中各区域的局部背光亮度；根据所述局部背光亮度以及所述背光模组中最大背光亮度，调整所述待显示图像数据对应的像素亮度；以及根据调整后的亮度以及确定出的所述各区域的局部背光亮度进行显示。
例如，在本公开实施例提供的驱动方法中，所述根据所述局部背光亮度以及所述背光模组中最大背光亮度，调整所述待显示图像数据的亮度包括：根据所述待显示图像数据确定原始的像素亮度；根据所述局部背光亮度以及所述背光模组中最大背光亮度，调整所述原始的像素亮度。
例如，在本公开实施例提供的驱动方法中，根据所述局部背光亮度以及所述背光模组中最大背光亮度，调整所述原始的像素亮度包括：采用如下公式调整所述原始的像素亮度，
Figure PCTCN2017072986-appb-000001
Y0为原始的像素亮度，Y为调整后的像素亮度，BLmax为背光模组中最大背光亮度，BLDB为背光模组的局部背光亮度，a为可调整参数。
例如，在本公开实施例提供的驱动方法中，所述BLDB为动态调节后背光 模组的局部背光亮度。
例如，在本公开实施例提供的驱动方法中，所述a的取值范围为1/8至1。
例如，在本公开实施例提供的驱动方法中，在所述待显示图像数据对应的亮度越小的区域，确定出的所述背光模组中的局部背光亮度越小。
本公开的实施例还提供了一种高动态对比度显示屏的驱动装置，包括：接收单元，被配置为获取待显示图像数据；背光控制单元，被配置为根据所述待显示图像数据，确定背光模组中各区域的局部背光亮度；像素补偿单元，被配置为根据所述局部背光亮度以及所述背光模组中最大背光亮度，调整所述待显示图像数据对应的亮度；显示控制单元，被配置为根据调整后的亮度以及确定出的所述各区域的局部背光亮度进行显示。
例如，在本公开实施例提供的驱动装置中，所述像素补偿单元，被配置为：根据所述待显示图像数据确定原始的像素亮度；根据所述局部背光亮度以及所述背光模组中最大背光亮度，调整所述原始的像素亮度。
例如，在本公开实施例提供的驱动装置中，所述像素补偿单元，被配置为采用如下公式调整所述原始的像素亮度：
Figure PCTCN2017072986-appb-000002
Y0为原始的像素亮度，Y为调整后的像素亮度，BLmax为背光模组中最大背光亮度，BLDB为背光模组的局部背光亮度，a为可调整参数。
例如，在本公开实施例提供的驱动装置中，所述BLDB为动态调节后背光模组的局部背光亮度。
例如，在本公开实施例提供的驱动装置中，所述a的取值范围为1/8至1。
例如，在本公开实施例提供的驱动装置中，在所述待显示图像数据对应的亮度越小的区域，确定出的所述背光模组中的局部背光亮度越小。
本公开的实施例还提供了一种高动态对比度显示屏，包括背光模组以及本公开任一实施例提供的驱动装置。
附图说明
为了更清楚地说明本公开实施例的技术方案，下面将对实施例的附图作 简单地介绍，显而易见地，下面描述中的附图仅仅涉及本公开的一些实施例，而非对本公开的限制。
图1为采用现有的方式进行数据补偿后电光转换函数曲线和未进行数据补偿的电光转换函数曲线的关系示意图；
图2为本公开实施例提供的高动态对比度显示屏的驱动方法的流程图；
图3为采用本公开实施例提供的方式进行数据补偿后电光转换函数曲线和未进行数据补偿的电光转换函数曲线的关系示意图；
图4为本公开实施例提供的高动态对比度显示屏的驱动装置的示意图；
图5为本公开实施例提供的一种驱动装置的示意图；以及
图6为本公开实施例提供的一种高动态对比度显示屏的示意图。
具体实施方式
为使本公开实施例的目的、技术方案和优点更加清楚，下面将结合本公开实施例的附图，对本公开实施例的技术方案进行清楚、完整地描述。显然，所描述的实施例是本公开的一部分实施例，而不是全部的实施例。基于所描述的本公开的实施例，本领域普通技术人员在无需创造性劳动的前提下所获得的所有其他实施例，都属于本公开保护的范围。
除非另外定义，本公开使用的技术术语或者科学术语应当为本公开所属领域内具有一般技能的人士所理解的通常意义。本公开中使用的“一个”、“一”或者“该”等类似词语也不表示数量限制，而是表示存在至少一个。“包括”或者“包含”等类似的词语意指出现该词前面的元件或者物件涵盖出现在该词后面列举的元件或者物件及其等同，而不排除其他元件或者物件。“连接”或者“相连”等类似的词语并非限定于物理的或者机械的连接，而是可以包括电性的连接，不管是直接的还是间接的。
下面结合附图，对本公开实施例提供的高动态对比度显示屏的驱动方法及驱动装置的具体实施方式进行详细地说明。
例如，采用直下式发光二极管(LED)背光搭配局部背光动态调节(Local Dimming)技术的背光模组可以大幅度降低背光模组的耗电量、提高显示画面对比度和灰阶数，以及减少残影。
例如，搭配局部背光动态调节(Local Dimming)技术的背光模组是利用 数百个LED组成的背光源代替冷阴极荧光灯管(CCFL)背光灯，组成背光的各LED可根据图像的明暗进行调节，在显示图像中的高亮部分对应的LED可以调节到最大亮度，而同时显示图像中的黑暗部分对应的LED可以相应降低亮度甚至关闭，以达到最佳的对比度。这样，在背光模组中降低暗区亮度就降低了背光的整体功耗。
例如，在背光模组采用局部背光动态调节(Local Dimming)技术进行调整时，为了保持显示原有的亮度相对变化不大，一般会对像素数据进行补偿，可以采用如下公式进行补偿
Figure PCTCN2017072986-appb-000003
其中，BL为标准的背光亮度，BLDB为动态调节后的局部背光亮度，R为原始像素数据，RDB为数据补偿后的像素数据。如图1所示，在采用上述公式进行数据补偿后电光转换函数曲线01与未进行数据补偿的电光转换函数曲线02相比较可以看出，采用数据补偿后的最低亮度较高，因此会对显示的对比度有一定的影响，因此，在应用于对于对比度有着严格要求的高动态对比度显示屏(HDR)时，无法符合HDR的对比度标准。
本公开实施例提供的一种高动态对比度显示屏的驱动方法，如图2所示，包括以下步骤：
S201、获取待显示图像数据；
S202、根据待显示图像数据，确定背光模组中各区域的局部背光亮度；
S203、根据局部背光亮度以及背光模组中最大背光亮度，调整待显示图像数据对应的亮度；
S204、根据调整后的亮度以及确定出各区域的局部背光亮度进行显示。
例如，本公开实施例提供的上述高动态对比度显示屏的驱动方法及驱动装置，在获取(例如接收)待显示图像数据后，根据待显示图像数据(例如显示图像数据对应的亮度)，确定背光模组中各区域的局部背光亮度，之后根据局部背光亮度以及背光模组中最大背光亮度，对待显示图像数据的亮度进行调整，以保证在调整后(例如进行数据补偿后)的最低亮度值较低，满足HDR的对比度标准，最后，根据调整后的亮度以及确定出的背光模组中各区域的局部背光亮度进行显示。
例如，本公开实施例提供的上述高动态对比度显示屏的驱动方法中的步 骤S202中根据待显示图像数据，确定背光模组中各区域的局部背光亮度时，例如采用局部背光动态调节(Local Dimming)技术对背光模组中各区域的局部背光亮度进行调整。例如，待显示图像数据中亮度越小的区域对应的所述背光模组中的局部背光亮度越小，这样可以在背光模组中降低暗区亮度，从而降低背光的整体功耗。
例如，本公开实施例提供的上述高动态对比度显示屏的驱动方法中的步骤S203中根据局部背光亮度以及背光模组中最大背光亮度，对待显示图像数据的亮度进行调整，具体可以通过如下方式实现：
首先，根据待显示图像数据确定原始的像素亮度；
之后，根据局部背光亮度以及背光模组中最大背光亮度，对原始的像素亮度进行调整。
例如，在根据局部背光亮度以及背光模组中最大背光亮度，对原始的像素亮度进行调整时，具体可以采用如下公式对原始的像素亮度进行调整：
Figure PCTCN2017072986-appb-000004
其中，Y0为原始的像素亮度，Y为调整后的像素亮度，BLmax为背光模组的最大背光亮度，BLDB为背光模组的局部背光亮度，a为可调整参数。
例如，BLDB为动态调节后背光模组的局部背光亮度。
例如，上述公式中的a的取值范围为1/8至1。
例如，在采用上述公式调整后的像素亮度的电光转换函数曲线03，如图3所示，与未进行数据补偿的电光转换函数曲线02相比较可以看出，具有较低的最低亮度，因此，可以符合HDR的对比度标准。
例如，基于同一发明构思，本公开的实施例还提供了一种高动态对比度显示屏的驱动装置，由于该装置解决问题的原理与前述一种高动态对比度显示屏的驱动方法相似，因此该装置的实施可以参见方法的实施，重复之处不再赘述。
本公开实施例提供的一种高动态对比度显示屏的驱动装置，如图4所示，包括：
接收单元401，用于获取待显示图像数据；
背光控制单元402，用于根据待显示图像数据，确定背光模组中各区域的局部背光亮度；
像素补偿单元403，用于根据局部背光亮度以及背光模组中最大背光亮度，对待显示图像数据的亮度进行调整；
显示控制单元404，用于根据调整后的亮度以及确定出的背光模组中各区域的局部背光亮度进行显示。
例如，本公开实施例中的接收单元401、背光控制单元402、像素补偿单元403以及显示控制单元404可以通过电路(例如集成电路)实现。
例如，本公开实施例提供的上述驱动装置中，像素补偿单元403，用于根据待显示图像数据确定原始的像素亮度；根据局部背光亮度以及背光模组中最大背光亮度，对原始的像素亮度进行调整。
例如，本公开实施例提供的上述驱动装置中，像素补偿单元403，采用如下公式对原始的像素亮度进行调整：
Figure PCTCN2017072986-appb-000005
其中，Y0为原始的像素亮度，Y为调整后的像素亮度，BLmax为背光模组的最大背光亮度，BLDB为背光模组的局部背光亮度，a为可调整参数。
例如，BLDB为动态调节后背光模组的局部背光亮度。
例如，本公开实施例提供的上述驱动装置中，像素补偿单元403中的a的取值范围为1/8至1。
例如，本公开实施例提供的上述驱动装置中，在待显示图像数据对应的亮度越小的区域，确定出的背光模组中的局部背光亮度越小。
例如，通过以上的实施方式的描述，本领域的技术人员可以清楚地了解到本公开实施例中的各单元(例如，接收单元401、背光控制单元402、像素补偿单元403以及显示控制单元404)可以通过硬件(例如，通过集成电路、FPGA等方式)实现，也可以借助软件加必要的通用硬件平台的方式来实现。基于这样的理解，本公开实施例的技术方案可以以软件产品的形式体现出来，该软件产品可以存储在一个非易失性存储介质(可以是CD-ROM，U盘，移动硬盘等)中，包括若干指令用以使得一台计算机设备(可以是个人计算机，服务器，或者网络设备等)执行本公开各个实施例所述的方法。
例如，如图5所示，驱动装置200可以包括存储器210和处理器220。在一些实施例中，驱动装置可以包括一个或多个处理器和一个或多个存储器。
例如，存储器210和处理器220可以实现驱动装置200中各单元(例如， 接收单元401、背光控制单元402、像素补偿单元403以及显示控制单元404)的功能。
在本公开的实施例中，处理器可以处理数据信号，可以包括各种计算结构，例如复杂指令集计算机(CISC)结构、结构精简指令集计算机(RISC)结构或者一种实行多种指令集组合的结构。在一些实施例中，处理器也可以是微处理器，例如X86处理器或ARM处理器，或者可以是数字处理器(DSP)等。处理器可以控制其它组件以执行期望的功能。
在本公开的实施例中，存储器可以保存处理器执行的指令和/或数据。例如，存储器可以包括一个或多个计算机程序产品，所述计算机程序产品可以包括各种形式的计算机可读存储介质，例如易失性存储器和/或非易失性存储器。所述易失性存储器例如可以包括随机存取存储器(RAM)和/或高速缓冲存储器(cache)等。所述非易失性存储器例如可以包括只读存储器(ROM)、硬盘、闪存等。在所述计算机可读存储介质上可以存储一个或多个计算机程序指令，处理器可以运行所述程序指令，以实现上文所述的本公开实施例中(由处理器实现)期望的功能。在所述计算机可读存储介质中还可以存储各种应用程序和各种数据，例如所述应用程序使用和/或产生的各种数据等。
例如，如图6所示，本公开的实施例还提供一种高动态对比度显示屏10，该高动态对比度显示屏包括背光模组100以及本公开任一实施例提供的驱动装置200。
本领域技术人员可以理解附图只是一个实施例的示意图，附图中的模块或流程并不一定是实施本公开的实施例所必须的。
例如，本领域技术人员可以理解实施例中的装置中的模块可以按照实施例描述进行分布于实施例的装置中，也可以进行相应变化位于不同于本实施例的一个或多个装置中。上述实施例的模块可以合并为一个模块，也可以进一步拆分成多个子模块。
例如，本公开实施例提供的上述高动态对比度显示屏的驱动方法及驱动装置，在获取(例如接收)待显示图像数据后，根据待显示图像数据的亮度，确定背光模组中各区域的局部背光亮度，之后根据局部背光亮度以及背光模组中最大背光亮度，对待显示图像数据的亮度进行调整，以保证在进行数据补偿后的最低亮度值较低，满足HDR的对比度标准，最后，根据调整后的 亮度以及确定出的局部背光亮度进行显示。
显然，本领域的技术人员可以对本公开的内容进行各种改动和变型而不脱离本公开的精神和范围。这样，倘若对本公开的这些修改和变型属于本公开的权利要求及其等同技术的范围之内，则本公开也意图包含这些改动和变型在内。
以上所述仅是本公开的示范性实施方式，而非用于限制本公开的保护范围，本公开的保护范围由所附的权利要求确定。
本专利申请要求于2016年5月6日递交的中国专利申请第201610298897.X号的优先权，在此全文引用上述中国专利申请公开的内容以作为本申请的一部分。

Claims (13)

  1. 一种高动态对比度显示屏的驱动方法，包括：
    获取待显示图像数据；
    根据所述待显示图像数据，确定背光模组中各区域的局部背光亮度；
    根据所述局部背光亮度以及所述背光模组中最大背光亮度，调整所述待显示图像数据对应的像素亮度；以及
    根据调整后的亮度以及确定出的所述各区域的局部背光亮度进行显示。
  2. 如权利要求1所述的驱动方法，其中，所述根据所述局部背光亮度以及所述背光模组中最大背光亮度，调整所述待显示图像数据的亮度包括：
    根据所述待显示图像数据确定原始的像素亮度；
    根据所述局部背光亮度以及所述背光模组中最大背光亮度，调整所述原始的像素亮度。
  3. 如权利要求2所述的驱动方法，其中，根据所述局部背光亮度以及所述背光模组中最大背光亮度，调整所述原始的像素亮度包括：
    采用如下公式调整所述原始的像素亮度，
    Figure PCTCN2017072986-appb-100001
    Y0为原始的像素亮度，Y为调整后的像素亮度，BLmax为背光模组中最大背光亮度，BLDB为背光模组的局部背光亮度，a为可调整参数。
  4. 根据权利要求3所述的驱动方法，其中，所述BLDB为动态调节后背光模组的局部背光亮度。
  5. 如权利要求3或4所述的驱动方法，其中，所述a的取值范围为1/8至1。
  6. 如权利要求1-5任一项所述的驱动方法，其中，
    在所述待显示图像数据对应的亮度越小的区域，确定出的所述背光模组中的局部背光亮度越小。
  7. 一种高动态对比度显示屏的驱动装置，包括：
    接收单元，被配置为获取待显示图像数据；
    背光控制单元，被配置为根据所述待显示图像数据，确定背光模组中各区域的局部背光亮度；
    像素补偿单元，被配置为根据所述局部背光亮度以及所述背光模组中最大背光亮度，调整所述待显示图像数据对应的亮度；
    显示控制单元，被配置为根据调整后的亮度以及确定出的所述各区域的局部背光亮度进行显示。
  8. 如权利要求7所述的驱动装置，其中，所述像素补偿单元，被配置为：
    根据所述待显示图像数据确定原始的像素亮度；
    根据所述局部背光亮度以及所述背光模组中最大背光亮度，调整所述原始的像素亮度。
  9. 如权利要求8所述的驱动装置，其中，所述像素补偿单元，被配置为采用如下公式调整所述原始的像素亮度：
    Figure PCTCN2017072986-appb-100002
    Y0为原始的像素亮度，Y为调整后的像素亮度，BLmax为背光模组中最大背光亮度，BLDB为背光模组的局部背光亮度，a为可调整参数。
  10. 根据权利要求9所述的驱动装置，其中，所述BLDB为动态调节后背光模组的局部背光亮度。
  11. 如权利要求10所述的驱动装置，其中，所述a的取值范围为1/8至1。
  12. 如权利要求7-11任一项所述的驱动装置，其中，在所述待显示图像数据对应的亮度越小的区域，确定出的所述背光模组中的局部背光亮度越小。
  13. 一种高动态对比度显示屏，包括背光模组以及如权利要求7-11任一项所述的驱动装置。
PCT/CN2017/072986 2016-05-06 2017-02-06 高动态对比度显示屏的驱动方法、驱动装置以及显示屏 Ceased WO2017190539A1 (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US15/548,863 US10462379B2 (en) 2016-05-06 2017-02-06 Driving method for high dynamic range display screen, driving apparatus and display screen

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201610298897.X 2016-05-06
CN201610298897.XA CN105741789B (zh) 2016-05-06 2016-05-06 一种高动态对比度显示屏的驱动方法及驱动装置

Publications (1)

Publication Number Publication Date
WO2017190539A1 true WO2017190539A1 (zh) 2017-11-09

Family

ID=56288919

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2017/072986 Ceased WO2017190539A1 (zh) 2016-05-06 2017-02-06 高动态对比度显示屏的驱动方法、驱动装置以及显示屏

Country Status (3)

Country Link
US (1) US10462379B2 (zh)
CN (1) CN105741789B (zh)
WO (1) WO2017190539A1 (zh)

Families Citing this family (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105741789B (zh) * 2016-05-06 2018-06-01 京东方科技集团股份有限公司 一种高动态对比度显示屏的驱动方法及驱动装置
CN107689215B (zh) * 2016-08-05 2019-12-24 青岛海信电器股份有限公司 一种智能显示设备的背光调节方法和装置
CN107689214B (zh) * 2016-08-05 2020-03-24 青岛海信电器股份有限公司 一种智能显示设备的背光调节方法和装置
CN107665681B (zh) * 2017-09-26 2020-06-05 武汉华星光电技术有限公司 液晶显示器驱动方法、系统及计算机可读取介质
US10462370B2 (en) 2017-10-03 2019-10-29 Google Llc Video stabilization
CN108012050B (zh) * 2017-12-19 2020-04-10 深圳创维－Rgb电子有限公司 图像亮度调整方法、系统以及计算机可读存储介质
CN108200441B (zh) * 2018-01-22 2020-10-13 海信视像科技股份有限公司 一种图像亮度处理方法及装置、电子设备
CN108564923B (zh) * 2018-01-30 2020-04-10 武汉华星光电技术有限公司 基于分区背光的高动态对比度图像显示方法及装置
US10171738B1 (en) 2018-05-04 2019-01-01 Google Llc Stabilizing video to reduce camera and face movement
CN108882442B (zh) * 2018-05-18 2020-04-21 京东方科技集团股份有限公司 背光源、背光源的控制方法和显示装置
CN109029720B (zh) * 2018-06-29 2021-09-21 北京小米移动软件有限公司 光照强度检测方法及装置
WO2020013663A1 (en) * 2018-07-12 2020-01-16 Samsung Electronics Co., Ltd. Method and apparatus for rendering contents for vision accessibility
CN109448640A (zh) * 2018-10-29 2019-03-08 天津大学 一种基于lcd-led双调制高动态显示器的hdr图像显示方法
CN109474791A (zh) * 2018-11-20 2019-03-15 深圳市趣创科技有限公司 相机拍摄图像控制曝光方法、装置、终端及存储介质
CN109616040B (zh) * 2019-01-30 2022-05-17 厦门天马微电子有限公司 一种显示装置及其驱动方法以及电子设备
CN109686323B (zh) * 2019-02-28 2020-08-21 厦门天马微电子有限公司 一种显示装置及其驱动方法以及电子设备
CN110738199A (zh) * 2019-12-10 2020-01-31 厦门天马微电子有限公司 一种显示装置及其驱动方法
CN111221493B (zh) * 2019-12-26 2024-10-22 的卢技术有限公司 一种降低功耗并提高arhud显示图像对比度的方法及系统
CN111341275A (zh) * 2019-12-31 2020-06-26 Tcl集团股份有限公司 一种显示控制方法、显示装置和存储介质
CN111429853B (zh) * 2020-04-28 2022-10-04 深圳市华星光电半导体显示技术有限公司 背光模组和显示设备
US11190689B1 (en) 2020-07-29 2021-11-30 Google Llc Multi-camera video stabilization
CN113160758B (zh) * 2021-03-03 2022-12-02 华源智信半导体(深圳)有限公司 直下式mini-LED背光模组及显示装置的亮度补偿方法和校正系统
CN114639359B (zh) * 2022-03-31 2024-07-26 上海创功通讯技术有限公司 一种调节背光亮度的方法及装置
WO2025129596A1 (zh) * 2023-12-22 2025-06-26 镭亚股份有限公司 3d显示装置和3d显示方法

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000293142A (ja) * 1999-04-09 2000-10-20 Casio Comput Co Ltd 液晶表示装置
CN102097071A (zh) * 2009-12-14 2011-06-15 乐金显示有限公司 液晶显示设备的局部调光驱动方法和设备
CN102098830A (zh) * 2009-12-14 2011-06-15 乐金显示有限公司 分析光源的光分布的方法和用该方法驱动局部调光的设备
CN102103840A (zh) * 2009-12-18 2011-06-22 乐金显示有限公司 液晶显示装置局部调光的驱动方法以及使用该方法的设备
CN105741789A (zh) * 2016-05-06 2016-07-06 京东方科技集团股份有限公司 一种高动态对比度显示屏的驱动方法及驱动装置

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100381423B1 (ko) * 2001-07-23 2003-04-26 삼성전자주식회사 휴대용 컴퓨터와 그 제어방법
CN1932615A (zh) * 2006-09-29 2007-03-21 上海广电（集团）有限公司中央研究院 液晶显示屏中基于三色发光二极管背光源控制装置及方法
JP5227884B2 (ja) * 2009-05-19 2013-07-03 株式会社日立製作所 画像表示装置
US20120105509A1 (en) * 2009-07-01 2012-05-03 Panasonic Corporation Image display device, control device for same, and integrated circuit
JPWO2011013404A1 (ja) * 2009-07-29 2013-01-07 シャープ株式会社 画像表示装置および画像表示方法
CN101673521B (zh) * 2009-08-18 2014-01-01 北京巨数数字技术开发有限公司 一种液晶显示装置和数字图像信号处理的方法
CN101707051A (zh) * 2009-08-21 2010-05-12 青岛海信电器股份有限公司 一种图像处理方法、装置及具有该装置的液晶电视机
CN102483899B (zh) * 2009-09-30 2014-06-25 夏普株式会社 图像显示装置和图像显示方法
CN102243855B (zh) * 2011-08-25 2012-12-26 合肥工业大学 一种用于提高液晶显示对比度的背光整体调光方法和装置
US9076397B2 (en) * 2011-09-07 2015-07-07 Sharp Kabushiki Kaisha Image display device and image display method
CN105185328B (zh) * 2015-09-01 2018-01-09 青岛海信电器股份有限公司 液晶显示亮度控制方法和装置以及液晶显示设备

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000293142A (ja) * 1999-04-09 2000-10-20 Casio Comput Co Ltd 液晶表示装置
CN102097071A (zh) * 2009-12-14 2011-06-15 乐金显示有限公司 液晶显示设备的局部调光驱动方法和设备
CN102098830A (zh) * 2009-12-14 2011-06-15 乐金显示有限公司 分析光源的光分布的方法和用该方法驱动局部调光的设备
CN102103840A (zh) * 2009-12-18 2011-06-22 乐金显示有限公司 液晶显示装置局部调光的驱动方法以及使用该方法的设备
CN105741789A (zh) * 2016-05-06 2016-07-06 京东方科技集团股份有限公司 一种高动态对比度显示屏的驱动方法及驱动装置

Also Published As

Publication number Publication date
US10462379B2 (en) 2019-10-29
US20180069999A1 (en) 2018-03-08
CN105741789B (zh) 2018-06-01
CN105741789A (zh) 2016-07-06

Similar Documents

Publication Publication Date Title
WO2017190539A1 (zh) 高动态对比度显示屏的驱动方法、驱动装置以及显示屏
CN109064979B (zh) 图像显示处理方法及装置、显示装置及存储介质
US20180247609A1 (en) Locally Adaptive Backlight Control
US11195479B2 (en) Display device and method for driving the same, driving apparatus and computer-readable medium
US9934731B2 (en) Multiple backlight display system
US20190164521A1 (en) Image processing method, image processing device, display apparatus and non-volatile computer readable storage medium
CN107689215B (zh) 一种智能显示设备的背光调节方法和装置
WO2017088483A1 (zh) 显示装置图像处理方法、系统、计算机程序和存储介质
CN108810318B (zh) 图像处理方法、装置、显示设备及计算机存储介质
CN103871377A (zh) 具强光可视性的显示方法与使用此方法的电子装置
US20190355296A1 (en) Image display processing method and device, display device and non-volatile storage medium
WO2016045146A1 (zh) 用于显示器的图像色彩增强方法及装置
CN105527753A (zh) 一种背光模组、显示装置、照明设备
CN106057135A (zh) 一种显示亮度的控制方法及移动终端
CN107256693A (zh) 显示方法、显示面板和显示装置
WO2017206735A1 (zh) 基于amoled显示器件的elvdd供电方法及供电装置和显示设备
CN106297732A (zh) 显示屏背光亮度调节方法及装置
CN114639356B (zh) 显示亮度调节方法、装置、电子设备和计算机可读存储介质
US20160133221A1 (en) Gaze Driven Display Front of Screen Performance
CN102903337B (zh) 一种液晶显示器的控制方法、装置及液晶显示器
US20200111428A1 (en) Display device and method of driving the same
CN105895036B (zh) 对比强化方法及其对比强化装置
CN101965551B (zh) 液晶显示器均匀度
CN108563069B (zh) 背光面光源及液晶显示装置
WO2020199849A1 (zh) 显示驱动方法、显示驱动装置、显示装置和存储介质

Legal Events

Date Code Title Description
WWE Wipo information: entry into national phase

Ref document number: 15548863

Country of ref document: US

NENP Non-entry into the national phase

Ref country code: DE

121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 17792368

Country of ref document: EP

Kind code of ref document: A1

122 Ep: pct application non-entry in european phase

Ref document number: 17792368

Country of ref document: EP

Kind code of ref document: A1

32PN Ep: public notification in the ep bulletin as address of the adressee cannot be established

Free format text: NOTING OF LOSS OF RIGHTS PURSUANT TO RULE 112(1) EPC (EPO FORM 1205A DATED 17/05/2019)

122 Ep: pct application non-entry in european phase

Ref document number: 17792368

Country of ref document: EP

Kind code of ref document: A1