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CN118016007A - Display device, display control method, related equipment and computer program product - Google Patents

Display device, display control method, related equipment and computer program product Download PDF

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Publication number
CN118016007A
CN118016007A CN202410232305.9A CN202410232305A CN118016007A CN 118016007 A CN118016007 A CN 118016007A CN 202410232305 A CN202410232305 A CN 202410232305A CN 118016007 A CN118016007 A CN 118016007A
Authority
CN
China
Prior art keywords
display
target
information
brightness
display data
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.)
Pending
Application number
CN202410232305.9A
Other languages
Chinese (zh)
Inventor
段明正
杨建光
张伟
崔凤岩
万争艳
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 CN202410232305.9A priority Critical patent/CN118016007A/en
Publication of CN118016007A publication Critical patent/CN118016007A/en
Pending legal-status Critical Current

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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
    • 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
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/133382—Heating or cooling of liquid crystal cells other than for activation, e.g. circuits or arrangements for temperature control, stabilisation or uniform distribution over the cell
    • 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
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/1336—Illuminating devices
    • 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
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/1336—Illuminating devices
    • G02F1/133602—Direct backlight
    • G02F1/133611—Direct backlight including means for improving the brightness uniformity
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B21/00—Projectors or projection-type viewers; Accessories therefor
    • G03B21/14—Details
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B21/00—Projectors or projection-type viewers; Accessories therefor
    • G03B21/14—Details
    • G03B21/16—Cooling; Preventing overheating
    • 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
    • G09G3/3607—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 for displaying colours or for displaying grey scales with a specific pixel layout, e.g. using sub-pixels
    • 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
    • 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
    • G09G2320/0271—Adjustment of the gradation levels within the range of the gradation scale, e.g. by redistribution or clipping
    • 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
    • G09G2320/04—Maintaining the quality of display appearance
    • 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
    • G09G2330/04—Display protection

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Mathematical Physics (AREA)
  • Optics & Photonics (AREA)
  • Computer Hardware Design (AREA)
  • Theoretical Computer Science (AREA)
  • Control Of Indicators Other Than Cathode Ray Tubes (AREA)
  • Liquid Crystal Display Device Control (AREA)

Abstract

本申请提供一种显示装置、显示控制方法、相关设备及计算机程序产品，所述显示装置包括背光模组、显示面板和控制单元；其中，所述控制单元，分别与所述背光模组和所述显示面板电耦接，通过控制单元可以控制背光模组和显示面板。控制单元被配置为：获取所述显示装置的显示数据和显示模式，根据所述显示数据和所述显示模式确定所述背光模组的目标亮度信息以及所述显示面板的目标灰阶信息。根据所述目标亮度信息控制所述背光模组；根据所述目标灰阶信息控制所述显示面板。也即在调整背光模组亮度的同时，通过调整显示数据的灰阶亮度以补偿显示数据的亮度损失，从而保证显示数据的显示效果，保障用户的观感体验。

The present application provides a display device, a display control method, related equipment and a computer program product, wherein the display device includes a backlight module, a display panel and a control unit; wherein the control unit is electrically coupled to the backlight module and the display panel, respectively, and the backlight module and the display panel can be controlled by the control unit. The control unit is configured to: obtain the display data and display mode of the display device, and determine the target brightness information of the backlight module and the target grayscale information of the display panel according to the display data and the display mode. Control the backlight module according to the target brightness information; control the display panel according to the target grayscale information. That is, while adjusting the brightness of the backlight module, the brightness loss of the display data is compensated by adjusting the grayscale brightness of the display data, thereby ensuring the display effect of the display data and the user's viewing experience.

Description

Display device, display control method, related apparatus, and computer program product
Technical Field
The present application relates to the field of display technologies, and in particular, to a display apparatus, a display control method, a related device, and a computer program product.
Background
The market of projectors is rapidly developed, and projector products are developed towards high reliability, high image quality and extremely good user experience. The projector is a highlight product, and the power consumption of the whole projector is high. In the projector, a liquid crystal display panel is mounted in a sealed optical machine, and there are cases where the temperature in the optical machine is high and the temperature distribution is uneven. The high temperature easily causes the problems of reduced transmittance, poor display uniformity and the like of the liquid crystal display panel, and seriously influences the user's viewing experience.
Disclosure of Invention
In view of the above, the present application provides a display device, a display control method, a related apparatus and a computer program product, which are used for solving the problems of high overall power consumption, high temperature and poor display uniformity of a projector.
Based on the above object, a first aspect of the present application provides a display device, including a backlight module, a display panel, and a control unit; wherein,
The control unit is electrically coupled with the backlight module and the display panel respectively and is configured to:
Acquiring display data and a display mode of the display device;
Determining target brightness information of the backlight module and target gray scale information of the display panel according to the display data and the display mode;
controlling the backlight module according to the target brightness information;
and controlling the display panel according to the target gray level information.
Optionally, the display modes include a first display mode and a second display mode;
The determining the target brightness information of the backlight module and the target gray scale information of the display panel according to the display data and the display mode includes:
responding to the display mode as a first display mode, and determining first target brightness information of the backlight module and first target gray scale information of the display panel according to the display data; or alternatively
And responding to the display mode being a second display mode, and determining second target brightness information of the backlight module and second target gray scale information of the display panel according to the display data.
Optionally, the determining, according to the display data, the first target brightness information of the backlight module and the first target gray-scale information of the display panel includes:
detecting the display data and determining whether the display data is preset display data or not;
and responding to the display data as preset display data, determining that the first target brightness information is preset brightness information corresponding to the preset display data, and determining that the first target gray-scale information is preset gray-scale information corresponding to the preset display data.
Optionally, the determining, according to the display data and the display mode, the target brightness information of the backlight module and the target gray scale information of the display panel includes:
determining target brightness information of the backlight module according to the display data and the display mode;
Determining target gray scale information of the display panel according to the target brightness information; wherein the target brightness information and the target gray scale information are inversely related.
Optionally, the control unit comprises a main control chip, a display driving chip and a backlight driving chip;
The main control chip is configured to acquire display data and a display mode of the display device, and send the display data and the display mode to the display driving chip;
The display driving chip is configured to determine target brightness information of the backlight module and target gray scale information of the display panel according to the display data and the display mode; transmitting the target brightness information to the backlight driving chip; controlling the display panel according to the target gray level information;
the backlight driving chip is configured to control the backlight module according to the target brightness information.
Optionally, the control unit comprises a main control chip, a display driving chip and a backlight driving chip;
The main control chip is configured to acquire display data and a display mode of the display device, and determine target brightness information of the backlight module and target gray scale information of the display panel according to the display data and the display mode; transmitting the target brightness information to the backlight driving chip; transmitting the target gray-scale information to the display driving chip;
the display driving chip is configured to control the display panel according to the target gray scale information;
the backlight driving chip is configured to control the backlight module according to the target brightness information.
Optionally, the display device is a projector, and the display panel is a liquid crystal display panel.
Optionally, the power range of the backlight module corresponding to the target brightness information is 30W-130W.
A second aspect of the present application provides a display control method, including:
acquiring display data and a display mode of a display device;
determining target brightness information of a backlight module in the display device and target gray scale information of a display panel in the display device according to the display data and the display mode;
controlling the backlight module according to the target brightness information;
and controlling the display panel according to the target gray level information.
Optionally, the display modes include a first display mode and a second display mode;
The determining, according to the display data and the display mode, the target brightness information of the backlight module in the display device and the target gray scale information of the display panel in the display device includes:
responding to the display mode as a first display mode, and determining first target brightness information of the backlight module and first target gray scale information of the display panel according to the display data; or alternatively
And responding to the display mode being a second display mode, and determining second target brightness information of the backlight module and second target gray scale information of the display panel according to the display data.
Optionally, the determining, according to the display data, the first target brightness information of the backlight module and the first target gray-scale information of the display panel includes:
detecting the display data and determining whether the display data is preset display data or not;
and responding to the display data as preset display data, determining that the first target brightness information is preset brightness information corresponding to the preset display data, and determining that the first target gray-scale information is preset gray-scale information corresponding to the preset display data.
A third aspect of the present application provides a display control apparatus comprising:
an acquisition module configured to acquire display data and a display mode of a display device;
A determining module configured to determine target brightness information of a backlight module in the display device and target gray scale information of a display panel in the display device according to the display data and the display mode;
the first control module is configured to control the backlight module according to the target brightness information;
And a second control module configured to control the display panel according to the target gray-scale information.
A fourth aspect of the application also provides an electronic device comprising a memory, a processor and a computer program stored on the memory and executable by the processor, the processor implementing the method according to the second aspect when executing the computer program.
A fifth aspect of the application also provides a non-transitory computer readable storage medium storing computer instructions for causing a computer to perform the method of the second aspect.
A sixth aspect of the application also provides a computer program product comprising computer program instructions which, when run on a computer, cause the computer to perform the method according to the second aspect.
As can be seen from the above, the display device, the display control method, the related apparatus and the computer program product provided by the present application, the display device includes a backlight module, a display panel and a control unit; the control unit is electrically coupled with the backlight module and the display panel respectively, and can control the backlight module and the display panel. The control unit is configured to: and acquiring display data and a display mode of the display device, and determining target brightness information of the backlight module and target gray scale information of the display panel according to the display data and the display mode. The display mode characterizes different display contents of the display device, and the target brightness information and the target gray scale information are determined together according to the display data and the display mode, so that the target brightness information and the target gray scale information which accord with the current display mode can be accurately determined on the premise of meeting the use requirement of a user, the dynamic adjustment of the target brightness information and the target gray scale information is realized, the display device is prevented from continuously operating at high brightness, the backlight power consumption of the display device can be obviously reduced, the overall temperature of the display device is reduced, and the problem of poor display uniformity of the display panel is solved. Controlling the backlight module according to the target brightness information; and controlling the display panel according to the target gray level information. That is, when the brightness of the backlight module is adjusted, the gray scale brightness of the display data is adjusted to compensate the brightness loss of the display data, so that the display effect of the display data is ensured, and the visual experience of a user is ensured.
Drawings
In order to more clearly illustrate the technical solutions of the present application or related art, the drawings that are required to be used in the description of the embodiments or related art will be briefly described below, and it is apparent that the drawings in the following description are only embodiments of the present application, and other drawings may be obtained according to the drawings without inventive effort to those of ordinary skill in the art.
Fig. 1 is a schematic structural diagram of a display device according to an embodiment of the application;
FIG. 2 is a schematic diagram of a display device according to another embodiment of the application;
FIG. 3 is a schematic diagram of a display device according to another embodiment of the application;
FIG. 4 is a flow chart of a display control method according to an embodiment of the application;
FIG. 5A is a schematic view of a light incident surface of a liquid crystal display panel according to an embodiment of the application;
FIG. 5B is a schematic view of a light-emitting surface of a liquid crystal display panel according to an embodiment of the application;
FIG. 6 is a schematic diagram of a display control device according to an embodiment of the present application;
fig. 7 is a schematic diagram of a hardware structure of an electronic device according to an embodiment of the application.
Detailed Description
The present application will be further described in detail below with reference to specific embodiments and with reference to the accompanying drawings, in order to make the objects, technical solutions and advantages of the present application more apparent.
It should be noted that unless otherwise defined, technical or scientific terms used in the embodiments of the present application should be given the ordinary meaning as understood by one of ordinary skill in the art to which the present application belongs. The terms "first," "second," and the like, as used in embodiments of the present application, do not denote any order, quantity, or importance, but rather are used to distinguish one element from another. The word "comprising" or "comprises", and the like, means that elements or items preceding the word are included in the element or item listed after the word and equivalents thereof, but does not exclude other elements or items. The terms "connected" or "connected," and the like, are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "upper", "lower", "left", "right", etc. are used merely to indicate relative positional relationships, which may also be changed when the absolute position of the object to be described is changed.
Currently, most display panels of projectors are liquid crystal display panels, and backlight sources are LED (Light-Emitting Diode) Light sources. The liquid crystal display panel is arranged in the airtight optical machine, so that the liquid crystal display panel works under the severe conditions of high brightness and high temperature for a long time, the surface temperature of the liquid crystal display panel can reach about 70 ℃, the illumination irradiated by the backlight source is very high, and great challenges are brought to the heat dissipation of the optical machine. Although active heat dissipation can be provided by installing a fan in the light engine, the heat dissipation effect is difficult to meet for such a highlight product of a projector. Meanwhile, the projector has the double limitations of low noise and low cost, and the space for actively radiating and improving is not large. The temperature in the optical machine is too high and the temperature distribution is uneven, so that the liquid crystal display panel is heated unevenly, and when dark state images (such as black images and 23 gray images) are displayed, the phenomenon of uneven dark state can occur, and the user experience is seriously affected. The high temperature of the whole machine also causes the problems of projector image quality reduction, poor color temperature and brightness uniformity, liquid crystal display panel transmittance reduction, polarizer yellowing in a projection system and the like, and then causes the service life reduction of the projector.
In view of this, the present application provides a display device, which can dynamically adjust the brightness of the backlight module in real time according to the display data, so that the power consumption of the backlight module is within a dynamic range, and the backlight module is prevented from continuously operating with the maximum power consumption, and the power consumption of the backlight module is reduced to the maximum extent on the premise of not affecting the display effect, so as to achieve the purpose of reducing the temperature of the optical machine cavity of the projector. The service environment of the liquid crystal display screen is improved through temperature reduction, dark state display unevenness is improved, and image quality and user experience are improved.
Embodiments of the present application are described in detail below with reference to the accompanying drawings.
The application provides a display device, and fig. 1 shows a schematic structural diagram of the display device. As shown in fig. 1, the display device includes a backlight module, a display panel, and a control unit; wherein,
The control unit is electrically coupled with the backlight module and the display panel respectively and is configured to:
acquiring display data and a display mode of the display device; determining target brightness information of the backlight module and target gray scale information of the display panel according to the display data and the display mode; controlling the backlight module according to the target brightness information; and controlling the display panel according to the target gray level information.
Specifically, the control unit is electrically coupled with the backlight module and the display panel respectively, and the control unit can control the light-emitting brightness of the backlight module and the gray-scale brightness of the display panel. The control unit acquires display data and a display mode before display through the display panel. The display data may be a display image or display information capable of characterizing the display image, etc., from which the original brightness of the display image can be determined. The display mode characterizes display content of the display device, for example, the display mode includes a video mode and a non-video mode, and the non-video mode may further include a human-computer interaction interface mode or a detected screen mode, etc. In a video mode, a display screen plays videos; in the man-machine interaction interface mode, a user can perform display function setting or function selection and the like by triggering operation on a display interface of a display panel; in the detection picture mode, the display screen displays a preset specific picture for detecting whether the display effect of the display device is normal. The control unit controls the display panel and the backlight module according to the display data and the display mode, and the gray scale brightness displayed by the display panel is different in different display data and display modes, and the backlight brightness of the backlight module is also different, so that the dynamic adjustment of the backlight brightness and the gray scale brightness is realized. The backlight module is prevented from continuously emitting light with the maximum brightness, the backlight brightness of the backlight module is controlled within a certain dynamic range, and the backlight power consumption is effectively reduced.
Further, the control unit determines target brightness information of the backlight module and target gray scale information of the display panel according to the display data and the display mode. The target brightness information comprises target brightness to be sent out by the backlight module, and the target gray scale information comprises target gray scale brightness to be displayed by the display panel. The gray scale represents the gradation level of different brightness from darkest to brightest, and the more gradation levels, the finer the picture effect can be presented. Taking an 8-bit display panel as an example, 256 brightness levels, referred to as 256 gray levels, can be displayed. Each gray level corresponds to a luminance, and the higher the gray level, the higher the luminance. The control unit controls the backlight module to emit target brightness and simultaneously controls the display panel to display target gray-scale brightness so as to compensate the brightness loss of display data, so that a display image can be displayed with original brightness, and the look and feel of a user are not affected. For example, if the backlight brightness of the backlight module is the maximum brightness, the backlight brightness is reduced to the target brightness corresponding to the target brightness information, and at this time, the brightness of the display image is reduced. And then, the gray-scale brightness of the display panel is increased to the target gray-scale brightness, and the brightness of the display image is improved. In the process, the brightness of the display image is firstly reduced and then increased, the final display brightness is equal to the original brightness, the display image does not have brightness loss, and the reduction of the light-emitting brightness of the backlight module is finally realized, namely the power consumption of the backlight module is reduced.
Based on the above, the display device of the embodiment includes a backlight module, a display panel and a control unit; the control unit is electrically coupled with the backlight module and the display panel respectively, and can control the backlight module and the display panel through the control unit. The control unit acquires display data and display modes of the display device, and determines target brightness information of the backlight module and target gray scale information of the display panel according to the display data and the display modes. The display mode characterizes different display contents of the display device, and the target brightness information and the target gray scale information are determined together according to the display data and the display mode, so that the target brightness information and the target gray scale information which accord with the current display mode can be accurately determined on the premise of meeting the use requirement of a user, the dynamic adjustment of the target brightness information and the target gray scale information is realized, the display device is prevented from continuously running at high brightness, the backlight power consumption of the display device can be reduced, the overall temperature of the display device is reduced, and the problem of poor display uniformity of a display panel is solved. Controlling the backlight module according to the target brightness information; and controlling the display panel according to the target gray level information. That is, when the brightness of the backlight module is adjusted, the gray scale brightness of the display data is adjusted to compensate the brightness loss of the display data, so that the display effect of the display data is ensured, and the visual experience of a user is ensured.
In order to further reduce the backlight power consumption while ensuring that the user's look and feel is not affected, the method for determining the target gray-scale information of the display panel and the target brightness information of the backlight module are different in different display modes, and will be described by specific embodiments.
In some embodiments, the display modes include a first display mode and a second display mode;
The determining the target brightness information of the backlight module and the target gray scale information of the display panel according to the display data and the display mode includes:
responding to the display mode as a first display mode, and determining first target brightness information of the backlight module and first target gray scale information of the display panel according to the display data; or alternatively
And responding to the display mode being a second display mode, and determining second target brightness information of the backlight module and second target gray scale information of the display panel according to the display data.
Specifically, in this embodiment, the first display mode is a non-video mode or a play mode with a higher requirement for a display effect, and the second display mode is a video mode or a play mode with a lower requirement for a display effect. In the non-video mode, the display content of the display panel comprises a man-machine interaction interface, a screen protection image, a detection picture image and the like; in the video mode, the display panel displays video images. Because the video image is dynamically changed, the requirement on the display effect (such as brightness and contrast) of each frame of image is relatively low, and the proper reduction of the backlight brightness of the backlight module does not influence the visual experience of a user. Thus, the display mode is divided into a non-video mode and a video mode.
Further, when the display mode is determined to be the first display mode, the first target brightness information and the first target gray scale information are determined according to the display data and the preset rule. The first target luminance information includes a first target luminance, and the first target gray-scale information includes a first target gray-scale luminance. The backlight module is controlled to emit light at a first target brightness, and the display panel is controlled to display a display image at a first target gray-scale brightness. And when the display mode is determined to be the second display mode, determining second target brightness information and second target gray scale information according to the display data and preset rules. The second target luminance information includes a second target luminance, and the second target gray-scale information includes a second target gray-scale luminance. The backlight module is controlled to emit light at the second target brightness, and the display panel is controlled to display the display image at the second target gray-scale brightness.
When the display data are the same and the display modes are different, the first target brightness is larger than the second target brightness, and the first target gray scale brightness is smaller than the second target gray scale brightness. For example, when the display images are the same, if the display images are displayed in the non-video mode, the backlight luminance is the first target luminance, and the grayscale luminance is the first target grayscale luminance. If the display image is displayed in the video mode, the backlight brightness is second target brightness, the second target brightness is smaller than the first target brightness, the gray scale brightness is second target gray scale brightness, and the second target gray scale brightness is larger than the first target gray scale brightness. That is, in the case where the display images are the same, in the video mode, the backlight luminance is lower and the backlight power consumption is smaller.
In the method of the embodiment, in each display mode, the target backlight brightness and the target gray scale brightness can be dynamically adjusted according to the display data, and in the second display mode, the backlight power consumption can be further reduced under the condition that the user's look and feel is not affected, so that the internal temperature of the display device is further reduced, and the phenomenon that the display uniformity of the display panel is poor is improved.
In the first display mode, the first target brightness information and the first target gray scale information need to be dynamically adjusted according to the display data. When the display data is a detection image, in order to secure the detection effect of the display device, the detection image needs to be displayed at a predetermined backlight luminance, which is described specifically by the following embodiments.
In some embodiments, the determining the first target brightness information of the backlight module and the first target gray-scale information of the display panel according to the display data includes:
detecting the display data and determining whether the display data is preset display data or not;
and responding to the display data as preset display data, determining that the first target brightness information is preset brightness information corresponding to the preset display data, and determining that the first target gray-scale information is preset gray-scale information corresponding to the preset display data.
Specifically, in the first display mode, the display data is detected, if the display data is preset display data, the first target brightness information is determined to be preset brightness information, and the first target gray scale information is determined to be preset gray scale information. The preset brightness information and the preset gray-scale information are brightness information and gray-scale information corresponding to preset display data. The preset display data is a detection image, and the detection image may be a single-color image, such as a red, green, blue, and other solid-color images. In order to detect the display effect of the display panel, the backlight brightness is usually required to be adjusted to the maximum brightness in order to ensure the accuracy of detection, that is, the brightness corresponding to the preset brightness information is the maximum brightness of the backlight module, and at this time, no brightness loss compensation is required for the display data, and no adjustment is required for the gray scale brightness.
On the premise of ensuring the detection accuracy, the backlight brightness can be properly reduced, and the backlight power consumption is further reduced. The brightness of the preset brightness information can be 90% of the maximum brightness of the backlight module, namely, the backlight brightness is reduced by 10%, and the gray-scale brightness is increased by 10% to compensate the brightness loss of the preset display data. The gray-scale brightness corresponding to the preset gray-scale information is the gray-scale brightness after being improved by 10%. That is, when the display data is preset display data, the backlight module is controlled by the fixed preset brightness information, and the display panel is controlled by the fixed preset gray level information, so as to meet the specific use or detection requirement of the user.
How to determine the target luminance information and the target gradation information from the display data and the display mode is described below by way of example.
In some embodiments, the determining the target brightness information of the backlight module and the target gray scale information of the display panel according to the display data and the display mode includes:
determining target brightness information of the backlight module according to the display data and the display mode;
Determining target gray scale information of the display panel according to the target brightness information; wherein the target brightness information and the target gray scale information are inversely related.
Specifically, when determining the target brightness information and the target gray-scale information, the target brightness information is determined according to the display data and the display mode, and then the target gray-scale information is determined according to the target brightness information. As in the previous embodiments, the display modes include a first display mode and a second display mode. When the display mode is determined to be the first display mode, first target brightness information is determined according to the display data, the first target brightness information comprises first target brightness, first target gray scale information is determined according to the first target brightness, and the first target gray scale information comprises first target gray scale brightness. The original brightness of the display image can be determined according to the display data, and the first target brightness and the first target gray-scale brightness are determined according to the original brightness and a preset rule. The first target luminance is positively correlated with the original luminance, and the first target gray-scale luminance is negatively correlated with the original luminance. That is, the larger the original brightness is, the larger the first target brightness is, and the smaller the first target gray-scale brightness is; the smaller the original brightness is, the smaller the first target brightness is, the larger the first target gray-scale brightness is, and the brightness loss of the display image is compensated through the gray-scale brightness. For example, when the display image is a black image, the original brightness is lower, and the determined first target brightness is lower at this time, for example, the first target brightness is determined to be 50% of the maximum backlight brightness (i.e., the backlight brightness is reduced by 50%), and correspondingly, the gray-scale brightness of the display panel is increased by 50% to obtain the first target gray-scale brightness. When the display image is a white image, the original brightness is higher, and the determined first target brightness is higher at this time, for example, the first target brightness is determined as the maximum backlight brightness, and the current gray-scale brightness is taken as the first target gray-scale brightness (which is equivalent to that the gray-scale brightness is not adjusted). When the display image is other monochromatic images except black and white, the first target brightness is determined to be 65% of the maximum backlight brightness (namely, the backlight brightness is reduced by 35%), and correspondingly, the gray scale brightness of the display panel is increased by 35% to obtain the first target gray scale brightness. When the current gray level of the display image is 128, the first target brightness is determined to be 70% of the maximum backlight brightness (i.e. the backlight brightness is reduced by 30%), and correspondingly, the gray level brightness of the display panel is increased by 30% to obtain the first target gray level brightness. It should be noted that, the higher the current gray level of the display image, the higher the original brightness of the display image, and the larger the corresponding first target brightness, the smaller the first target gray level brightness.
Table 1 shows a backlight power consumption comparison table under different display data. The first column of data in table 1 is different display data, which are respectively black image, white image, red image, green image, blue image, and different gray scale display images, from 32 gray scale to 224 gray scale. The second column data is the backlight power consumption of each display data under the condition that the backlight brightness is not adjusted, and the third column data is the backlight power consumption of each display data under the condition that the backlight brightness is dynamically adjusted. As can be seen from the data in table 1, the backlight power consumption corresponding to each display data is substantially the same without adjusting the backlight brightness, and is equal to the maximum power consumption of the backlight module, and the light-emitting brightness of the backlight module is the maximum brightness. When the backlight brightness is dynamically adjusted, the backlight power consumption corresponding to different display data is different, the backlight power consumption corresponding to the black image and the 32 gray scale image is the lowest, 34.2W, and the backlight power consumption is increased along with the increase of the gray scale. The backlight power consumption corresponding to the white image is 124W, which is equal to the maximum power consumption of the backlight module. The red image, the green image and the blue image are preset display data in the foregoing embodiments, the first target brightness information is preset brightness information, the brightness corresponding to the preset brightness information is equal to the maximum brightness of the backlight module, and the backlight power consumption is 124W.
When the display mode is determined to be the second display mode, second target brightness information is determined according to the display data, the second target brightness information comprises second target brightness, and second target gray scale information is determined according to the second target brightness, and the second target gray scale information comprises second target gray scale brightness. The original brightness of the display image can be determined according to the display data, and the second target brightness and the second target gray-scale brightness are determined according to the original brightness and a preset rule. The second target luminance is positively correlated with the original luminance, and the second target gray-scale luminance is negatively correlated with the original luminance. When the display images are the same and the display modes are different, the second target brightness is smaller than the first target brightness, and the second target gray-scale brightness is larger than the second target gray-scale brightness. The method for determining the second target gray-scale luminance according to the second target luminance is the same as the method for determining the first target gray-scale luminance according to the first target luminance, and will not be described here again. For example, when the current gray level of the display image is 128, the second target brightness is determined to be 65% of the maximum backlight brightness (i.e. the backlight brightness is reduced by 35%), and correspondingly, the gray level brightness of the display panel is increased by 35% to obtain the second target gray level brightness. The higher the current gray level of the display image is, the higher the original brightness of the display image is, the larger the corresponding first target brightness is, and the smaller the first target gray level brightness is. As shown in table 1, in the second display mode, when the display data is video (the play time is 1H), the power consumption amount under the unadjusted backlight luminance is 0.12kw·h, the power consumption amount under the dynamic adjustment backlight luminance is 0.06kw·h, and the power consumption amount is reduced by 50%. Therefore, the backlight power consumption of the backlight module or the power consumption of the display device can be effectively reduced by dynamically adjusting the backlight brightness in the first display mode or the second display mode, so that the energy consumption is reduced.
Table 1 backlight power consumption comparison table
Displaying data Unadjusted backlight brightness Dynamic adjustment of backlight brightness
Black color 123.3W 34.2W
White color 123.6W 124W
Red colour 123.5W 124W
Green, green 123.4W 124W
Blue light 123.4W 124W
L32 123.4W 34.2W
L64 123.4W 43.4W
L96 123.4W 58.7W
L128 123.4W 73.1W
L160 123.4W 85.7W
L192 123.4W 102W
L224 123.5W 119W
Video 1H electricity consumption 0.12kW·h 0.06kW·h
In the foregoing embodiments, the display panel and the backlight module are controlled by the control unit including a plurality of chips therein, and the roles of the chips in the control unit are described below by way of specific embodiments.
In some embodiments, the control unit includes a main control chip 100, a display driving chip 200, and a backlight driving chip 300. Fig. 2 shows a schematic structural diagram of the display device. In fig. 2, the main control chip 100 is electrically coupled to the display driving chip 200 and the backlight driving chip 300, respectively, the display driving chip 200 is electrically coupled to the liquid crystal display panel 400, and the backlight driving chip 300 is electrically coupled to the LED backlight module 500. The main control chip 100 is configured to obtain display data and a display mode of the display device, and send the display data and the display mode to the display driving chip 200. The display driving chip 200 includes a dynamic backlight control (Content Adaptive Backlight Control, CABC) module 210, a first algorithm module 220, a gamma configuration module 230, and an output module 240. The main control chip 100 configures a corresponding dynamic backlight control algorithm for the first algorithm module 220, the first algorithm module 220 provides algorithm support for the dynamic backlight control module 210, the dynamic backlight control module 210 determines target brightness information of the backlight module and target gray scale information of the display panel according to the display data and the display mode, the target brightness information is sent to the backlight driving chip 300, specifically, the dynamic backlight control module 210 converts the target brightness information into a pulse signal with a certain duty ratio, and the pulse signal is sent to the backlight driving chip 300. Meanwhile, the dynamic backlight control module 210 sends the target gray-scale information to the Gamma configuration module 230, adjusts the Gamma value (Gamma value) by the Gamma configuration module 230 to adjust the gray-scale brightness, and outputs the gray-scale brightness corresponding to the target gray-scale information to the liquid crystal display panel 400 through the output module 240 to control the liquid crystal display panel 400 to display the target gray-scale brightness. The backlight driving chip 300 includes a second algorithm module 310 and a driving module 320, wherein the second algorithm module 310 converts the pulse signal into a driving signal, and drives the LED backlight module 500 through the driving module 320 based on the driving signal, so that the light emitting brightness of the LED backlight module 500 is equal to the target brightness corresponding to the target brightness information.
In addition to integrating the dynamic backlight control module 210 and the first algorithm module 220 in the display driving chip 200, the dynamic backlight control module 210 and the first algorithm module 220 may be integrated in the main control chip 100. Fig. 3 shows a schematic structural diagram of a display device in another embodiment. In fig. 3, the control unit includes a main control chip 100, a display driving chip 200, and a backlight driving chip 300. The main control chip 100 is electrically coupled to the display driving chip 200 and the backlight driving chip 300, respectively, the display driving chip 200 is electrically coupled to the liquid crystal display panel 400, and the backlight driving chip 300 is electrically coupled to the LED backlight module 500. The main control chip 100 includes a first algorithm module 220 and a dynamic backlight control module 210, wherein the first algorithm module 220 provides algorithm support for the dynamic backlight control module 210. The main control chip 100 obtains display data and a display mode, and the dynamic backlight control module 210 determines target brightness information and target gray scale information according to the display data and the display mode. The dynamic backlight control module 210 sends the target brightness information to the backlight driving chip 300, specifically, the dynamic backlight control module 210 converts the target brightness information into a pulse signal with a certain duty ratio, and changes the backlight power consumption by adjusting the duty ratio, and sends the pulse signal to the backlight driving chip 300. The backlight driving chip 300 includes a second algorithm module 310 and a driving module 320, wherein the second algorithm module 310 converts the pulse signal into a driving signal, and drives the LED backlight module 500 through the driving module 320 based on the driving signal, so that the light emitting brightness of the LED backlight module 500 is equal to the target brightness corresponding to the target brightness information. The display driving chip 200 includes a gamma configuration module 230 and an output module 240, the dynamic backlight control module 210 sends the target gray scale information to the gamma configuration module 230, adjusts the gamma value through the gamma configuration module 230 to adjust the gray scale brightness, and outputs the gray scale brightness corresponding to the target gray scale information to the liquid crystal display panel 400 through the output module 240 to control the liquid crystal display panel 400 to display the target gray scale brightness.
Another embodiment of the present application further provides a display control method, and fig. 4 shows a flow chart of the display control method, including the following steps:
Step 402, obtaining display data and display modes of a display device.
The display data may be a display image or display information capable of characterizing the display image, etc., from which the original brightness of the display image can be determined. The display mode characterizes display content of the display device, for example, the display mode includes a video mode and a non-video mode, and the non-video mode may further include a human-computer interaction interface mode or a detected screen mode, etc. In a video mode, a display screen plays videos; in the man-machine interaction interface mode, a user can perform display function setting or function selection and the like by triggering operation on a display interface of a display panel; in the detection picture mode, the display screen displays a preset specific picture for detecting whether the display effect of the display device is normal.
And step 404, determining target brightness information of a backlight module in the display device and target gray scale information of a display panel in the display device according to the display data and the display mode.
The target brightness information comprises target brightness to be sent out by the backlight module, and the target gray scale information comprises target gray scale brightness to be displayed by the display panel. The target brightness information and the target gray-scale information can be accurately determined through the display data and the display mode.
Step 406, controlling the backlight module according to the target brightness information. The control unit controls the backlight module to emit target brightness corresponding to the target brightness information.
And step 408, controlling the display panel according to the target gray level information. The control unit controls the display panel to display target gray-scale brightness corresponding to the target gray-scale information.
According to the method, the display modes represent different display contents of the display device, the target brightness information and the target gray scale information are determined together according to the display data and the display modes, the target brightness information and the target gray scale information which accord with the current display mode can be accurately determined on the premise of meeting the use requirement of a user, dynamic adjustment of the target brightness information and the target gray scale information is achieved, the display device is prevented from continuously running at high brightness, backlight power consumption of the display device can be reduced, the overall temperature of the display device is reduced, and the problem of poor display uniformity of the display panel is solved. Controlling the backlight module according to the target brightness information; and controlling the display panel according to the target gray level information. That is, when the brightness of the backlight module is adjusted, the gray scale brightness of the display data is adjusted to compensate the brightness loss of the display data, so that the display effect of the display data is ensured, and the visual experience of a user is ensured.
It should be noted that the display control method in the present application may be applied not only to a mobile device (such as a mobile phone, a tablet, etc.), but also to a projector, that is, the display device in the present application may be a mobile device, a projector, and the display panel is a liquid crystal display panel. Because the charging of the mobile equipment terminal is relatively limited, the mobile equipment terminal has higher requirements on the cruising ability of the battery. By adopting the display control method, the backlight power consumption of the mobile equipment end can be reduced, the power range of the backlight module is controlled between 30W and 60W, the purpose of saving electric quantity is realized, and the battery endurance is improved. When the brightness detection is carried out on the mobile equipment end, a color analyzer is used, and the brightness unit is nit (nit).
In the projector, the display control method can obviously reduce the backlight power consumption, control the power range of the backlight module to be between 30W and 130W, further reduce the temperature in the optical machine, improve the use environment of the liquid crystal display panel, improve the non-uniform display of the dark state and improve the image quality and the user experience of the projector. When the projector is used for brightness detection, an illuminometer is used, and the brightness unit is lux (lx is abbreviated as lx).
In order to embody the effect of the application on reducing the temperature of the inner cavity of the optical machine of the projector, the following experimental data are combined for detail description. Fig. 5A shows a schematic view of the light entrance surface of a liquid crystal display panel in a projector, wherein test points include a light entrance point 1, a light entrance point 2, and a light entrance point 3. Fig. 5B shows a schematic view of the light emitting surface of the liquid crystal display panel in the projector, wherein the test point includes the light emitting point 4. Table 2 is a table for comparing temperatures of the lcd panel, and in table 2, temperatures corresponding to the light entrance point 1, the light entrance point 2, the light entrance point 3, and the light exit point 4 are listed in both cases of unadjusted backlight brightness and dynamically adjusted backlight brightness. When the display time is 30min, the temperature of each test point is within 73-76.3 ℃ under the condition of not adjusting the backlight brightness, the temperature of each test point is within 57.5-59.6 ℃ under the condition of dynamically adjusting the backlight brightness, and the maximum temperature difference is 16.7 ℃, so that the temperature in the optical machine of the projector is obviously reduced after the dynamic backlight brightness is opened, the service life of the liquid crystal display panel is prolonged, and the service life of the projector is prolonged.
Table 2 liquid crystal display panel temperature comparison table
In order to further reduce the backlight power consumption while ensuring that the user's look and feel is not affected, the method for determining the target gray-scale information of the display panel and the target brightness information of the backlight module are different in different display modes, and will be described by specific embodiments.
In some embodiments, the display modes include a first display mode and a second display mode;
The determining the target brightness information of the backlight module and the target gray scale information of the display panel according to the display data and the display mode includes:
responding to the display mode as a first display mode, and determining first target brightness information of the backlight module and first target gray scale information of the display panel according to the display data; or alternatively
And responding to the display mode being a second display mode, and determining second target brightness information of the backlight module and second target gray scale information of the display panel according to the display data.
Specifically, in this embodiment, the first display mode is a non-video mode, and the second display mode is a video mode or a play mode with a low requirement for display effect. In a non-video mode, the display panel displays non-video forms of contents including a human-computer interaction interface, a screen protection image, a detection picture image and the like; in the video mode, the display panel displays video images. Because the video image is dynamically changed, the requirement on the display effect (such as brightness and contrast) of each frame of image is relatively low, and the proper reduction of the backlight brightness of the backlight module does not influence the visual experience of a user. Thus, the display mode is divided into a non-video mode and a video mode.
Further, when the display mode is determined to be the first display mode, the first target brightness information and the first target gray scale information are determined according to the display data and the preset rule. The first target luminance information includes a first target luminance, and the first target gray-scale information includes a first target gray-scale luminance. The backlight module is controlled to emit light at a first target brightness, and the display panel is controlled to display a display image at a first target gray-scale brightness. And when the display mode is determined to be the second display mode, determining second target brightness information and second target gray scale information according to the display data and preset rules. The second target luminance information includes a second target luminance, and the second target gray-scale information includes a second target gray-scale luminance. The backlight module is controlled to emit light at the second target brightness, and the display panel is controlled to display the display image at the second target gray-scale brightness. When the display data are the same and the display modes are different, the first target brightness is larger than the second target brightness, and the first target gray scale brightness is smaller than the second target gray scale brightness. For example, when the display images are the same, if the display images are displayed in the non-video mode, the backlight luminance is the first target luminance, and the grayscale luminance is the first target grayscale luminance. If the display image is displayed in the video mode, the backlight brightness is second target brightness, the second target brightness is smaller than the first target brightness, the gray scale brightness is second target gray scale brightness, and the second target gray scale brightness is larger than the first target gray scale brightness. That is, in the case where the display images are the same, in the video mode, the backlight luminance is lower and the backlight power consumption is smaller.
In the method of the embodiment, in each display mode, the target backlight brightness and the target gray scale brightness can be dynamically adjusted according to the display data, and in the second display mode, the backlight power consumption can be further reduced under the condition that the user's look and feel is not affected, so that the internal temperature of the display device is further reduced, and the phenomenon that the display uniformity of the display panel is poor is improved.
In the first display mode, the first target brightness information and the first target gray scale information need to be dynamically adjusted according to the display data. When the display data is a detection image, in order to secure the detection effect of the display device, the detection image needs to be displayed at a predetermined backlight luminance, which is described specifically by the following embodiments.
In some embodiments, the determining the first target brightness information of the backlight module and the first target gray-scale information of the display panel according to the display data includes:
detecting the display data and determining whether the display data is preset display data or not;
and responding to the display data as preset display data, determining that the first target brightness information is preset brightness information corresponding to the preset display data, and determining that the first target gray-scale information is preset gray-scale information corresponding to the preset display data.
Specifically, in the first display mode, the display data is detected, if the display data is preset display data, the first target brightness information is determined to be preset brightness information, and the first target gray scale information is determined to be preset gray scale information. The preset brightness information and the preset gray-scale information are brightness information and gray-scale information corresponding to preset display data. The preset display data is a detection image, and the detection image may be a single-color image, such as a red, green, blue, and other solid-color images. In order to detect the display effect of the display panel, the backlight brightness is usually required to be adjusted to the maximum brightness in order to ensure the accuracy of detection, that is, the brightness corresponding to the preset brightness information is the maximum brightness of the backlight module, and at this time, no brightness loss compensation is required for the display data, and no adjustment is required for the gray scale brightness.
On the premise of ensuring the detection accuracy, the backlight brightness can be properly reduced, and the backlight power consumption is further reduced. The brightness of the preset brightness information can be 90% of the maximum brightness of the backlight module, namely, the backlight brightness is reduced by 10%, and the gray-scale brightness is increased by 10% to compensate the brightness loss of the preset display data. The gray-scale brightness corresponding to the preset gray-scale information is the gray-scale brightness after being improved by 10%. That is, when the display data is preset display data, the backlight module is controlled by the fixed preset brightness information, and the display panel is controlled by the fixed preset gray level information, so as to meet the specific use or detection requirement of the user.
It should be noted that, the method of the embodiment of the present application may be performed by a single device, for example, a computer or a server. The method of the embodiment can also be applied to a distributed scene, and is completed by mutually matching a plurality of devices. In the case of such a distributed scenario, one of the devices may perform only one or more steps of the method of an embodiment of the present application, the devices interacting with each other to accomplish the method.
It should be noted that the foregoing describes some embodiments of the present application. Other embodiments are within the scope of the following claims. In some cases, the actions or steps recited in the claims may be performed in a different order than in the embodiments described above and still achieve desirable results. In addition, the processes depicted in the accompanying figures do not necessarily require the particular order shown, or sequential order, to achieve desirable results. In some embodiments, multitasking and parallel processing are also possible or may be advantageous.
Based on the same inventive concept, the application also provides a display control device corresponding to the method of any embodiment.
Referring to fig. 6, the display control apparatus includes:
An acquisition module 602 configured to acquire display data and a display mode of the display device;
a determining module 604 configured to determine target brightness information of a backlight module in the display device and target gray scale information of a display panel in the display device according to the display data and the display mode;
A first control module 606 configured to control the backlight module according to the target brightness information;
A second control module 608 configured to control the display panel according to the target gray scale information.
In some embodiments, the display modes include a first display mode and a second display mode;
The determining module 604 is further configured to determine, according to the display data, first target brightness information of the backlight module and first target gray-scale information of the display panel in response to the display mode being a first display mode; or in response to the display mode being a second display mode, determining second target brightness information of the backlight module and second target gray scale information of the display panel according to the display data.
In some embodiments, the determining module 604 is further configured to detect the display data, and determine whether the display data is preset display data; and responding to the display data as preset display data, determining that the first target brightness information is preset brightness information corresponding to the preset display data, and determining that the first target gray-scale information is preset gray-scale information corresponding to the preset display data.
For convenience of description, the above devices are described as being functionally divided into various modules, respectively. Of course, the functions of each module may be implemented in the same piece or pieces of software and/or hardware when implementing the present application.
The device of the foregoing embodiment is configured to implement the corresponding display control method in any of the foregoing embodiments, and has the beneficial effects of the corresponding method embodiment, which is not described herein.
Based on the same inventive concept, the application also provides an electronic device corresponding to the method of any embodiment, which comprises a memory, a processor and a computer program stored on the memory and capable of running on the processor, wherein the processor realizes the display control method of any embodiment when executing the program.
Fig. 7 is a schematic diagram of a hardware structure of an electronic device according to the embodiment, where the device may include: a processor 1010, a memory 1020, an input/output interface 1030, a communication interface 1040, and a bus 1050. Wherein processor 1010, memory 1020, input/output interface 1030, and communication interface 1040 implement communication connections therebetween within the device via a bus 1050.
The processor 1010 may be implemented by a general-purpose CPU (Central Processing Unit ), a microprocessor, an Application SPECIFIC INTEGRATED Circuit (ASIC), or one or more integrated circuits, etc. for executing related programs to implement the technical solutions provided in the embodiments of the present disclosure.
The Memory 1020 may be implemented in the form of ROM (Read Only Memory), RAM (Random Access Memory ), static storage, dynamic storage, etc. Memory 1020 may store an operating system and other application programs, and when the embodiments of the present specification are implemented in software or firmware, the associated program code is stored in memory 1020 and executed by processor 1010.
The input/output interface 1030 is used to connect with an input/output module for inputting and outputting information. The input/output module may be configured as a component in a device (not shown) or may be external to the device to provide corresponding functionality. Wherein the input devices may include a keyboard, mouse, touch screen, microphone, various types of sensors, etc., and the output devices may include a display, speaker, vibrator, indicator lights, etc.
Communication interface 1040 is used to connect communication modules (not shown) to enable communication interactions of the present device with other devices. The communication module may implement communication through a wired manner (such as USB, network cable, etc.), or may implement communication through a wireless manner (such as mobile network, WIFI, bluetooth, etc.).
Bus 1050 includes a path for transferring information between components of the device (e.g., processor 1010, memory 1020, input/output interface 1030, and communication interface 1040).
It should be noted that although the above-described device only shows processor 1010, memory 1020, input/output interface 1030, communication interface 1040, and bus 1050, in an implementation, the device may include other components necessary to achieve proper operation. Furthermore, it will be understood by those skilled in the art that the above-described apparatus may include only the components necessary to implement the embodiments of the present description, and not all the components shown in the drawings.
The electronic device of the foregoing embodiment is configured to implement the corresponding display control method in any of the foregoing embodiments, and has the beneficial effects of the corresponding method embodiment, which is not described herein.
Based on the same inventive concept, the present application also provides a non-transitory computer readable storage medium storing computer instructions for causing the computer to perform the display control method according to any of the above embodiments, corresponding to the method according to any of the above embodiments.
The computer readable media of the present embodiments, including both permanent and non-permanent, removable and non-removable media, may be used to implement information storage by any method or technology. The information may be computer readable instructions, data structures, modules of a program, or other data. Examples of storage media for a computer include, but are not limited to, phase change memory (PRAM), static Random Access Memory (SRAM), dynamic Random Access Memory (DRAM), other types of Random Access Memory (RAM), read Only Memory (ROM), electrically Erasable Programmable Read Only Memory (EEPROM), flash memory or other memory technology, compact disc read only memory (CD-ROM), digital Versatile Discs (DVD) or other optical storage, magnetic cassettes, magnetic tape magnetic disk storage or other magnetic storage devices, or any other non-transmission medium, which can be used to store information that can be accessed by a computing device.
The storage medium of the foregoing embodiments stores computer instructions for causing the computer to execute the display control method according to any one of the foregoing embodiments, and has the advantages of the corresponding method embodiments, which are not described herein.
Based on the same conception, the application also provides a computer program product corresponding to the method of any embodiment, comprising computer program instructions, which when run on a computer, cause the computer to execute the method of any embodiment, and the method has the beneficial effects of the corresponding method embodiment, which are not repeated herein.
Those of ordinary skill in the art will appreciate that: the discussion of any of the embodiments above is merely exemplary and is not intended to suggest that the scope of the application (including the claims) is limited to these examples; the technical features of the above embodiments or in the different embodiments may also be combined within the idea of the application, the steps may be implemented in any order, and there are many other variations of the different aspects of the embodiments of the application as described above, which are not provided in detail for the sake of brevity.
Additionally, well-known power/ground connections to Integrated Circuit (IC) chips and other components may or may not be shown within the provided figures, in order to simplify the illustration and discussion, and so as not to obscure the embodiments of the present application. Furthermore, the devices may be shown in block diagram form in order to avoid obscuring the embodiments of the present application, and also in view of the fact that specifics with respect to implementation of such block diagram devices are highly dependent upon the platform within which the embodiments of the present application are to be implemented (i.e., such specifics should be well within purview of one skilled in the art). Where specific details (e.g., circuits) are set forth in order to describe example embodiments of the application, it should be apparent to one skilled in the art that embodiments of the application can be practiced without, or with variation of, these specific details. Accordingly, the description is to be regarded as illustrative in nature and not as restrictive.
While the application has been described in conjunction with specific embodiments thereof, many alternatives, modifications, and variations of those embodiments will be apparent to those skilled in the art in light of the foregoing description. For example, other memory architectures (e.g., dynamic RAM (DRAM)) may use the embodiments discussed.
The present embodiments are intended to embrace all such alternatives, modifications and variances which fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, and the like, which are within the spirit and principles of the embodiments of the application, are intended to be included within the scope of the application.

Claims (15)

1.一种显示装置，包括背光模组、显示面板和控制单元；其中，1. A display device, comprising a backlight module, a display panel and a control unit; wherein: 所述控制单元，分别与所述背光模组和所述显示面板电耦接，且被配置为：The control unit is electrically coupled to the backlight module and the display panel respectively, and is configured as follows: 获取所述显示装置的显示数据和显示模式；Acquiring display data and display mode of the display device; 根据所述显示数据和所述显示模式确定所述背光模组的目标亮度信息以及所述显示面板的目标灰阶信息；Determine target brightness information of the backlight module and target grayscale information of the display panel according to the display data and the display mode; 根据所述目标亮度信息控制所述背光模组；controlling the backlight module according to the target brightness information; 根据所述目标灰阶信息控制所述显示面板。The display panel is controlled according to the target grayscale information. 2.根据权利要求1所述的显示装置，其特征在于，所述显示模式包括第一显示模式和第二显示模式；2. The display device according to claim 1, wherein the display mode comprises a first display mode and a second display mode; 所述根据所述显示数据和所述显示模式确定所述背光模组的目标亮度信息以及所述显示面板的目标灰阶信息，包括：The determining the target brightness information of the backlight module and the target grayscale information of the display panel according to the display data and the display mode includes: 响应于所述显示模式为第一显示模式，根据所述显示数据确定所述背光模组的第一目标亮度信息以及所述显示面板的第一目标灰阶信息；或者，In response to the display mode being the first display mode, determining first target brightness information of the backlight module and first target grayscale information of the display panel according to the display data; or, 响应于所述显示模式为第二显示模式，根据所述显示数据确定所述背光模组的第二目标亮度信息以及所述显示面板的第二目标灰阶信息。In response to the display mode being the second display mode, second target brightness information of the backlight module and second target grayscale information of the display panel are determined according to the display data. 3.根据权利要求1所述的显示装置，其特征在于，所述根据所述显示数据确定所述背光模组的第一目标亮度信息以及所述显示面板的第一目标灰阶信息，包括：3. The display device according to claim 1, wherein determining the first target brightness information of the backlight module and the first target grayscale information of the display panel according to the display data comprises: 对所述显示数据进行检测，确定所述显示数据是否为预设显示数据；Detecting the display data to determine whether the display data is preset display data; 响应于所述显示数据为预设显示数据，确定所述第一目标亮度信息为与所述预设显示数据对应的预设亮度信息，确定所述第一目标灰阶信息为与所述预设显示数据对应的预设灰阶信息。In response to the display data being preset display data, the first target brightness information is determined to be preset brightness information corresponding to the preset display data, and the first target grayscale information is determined to be preset grayscale information corresponding to the preset display data. 4.根据权利要求1所述的显示装置，其特征在于，所述根据所述显示数据和所述显示模式确定所述背光模组的目标亮度信息以及所述显示面板的目标灰阶信息，包括：4. The display device according to claim 1, wherein determining the target brightness information of the backlight module and the target grayscale information of the display panel according to the display data and the display mode comprises: 根据所述显示数据和所述显示模式确定所述背光模组的目标亮度信息；Determine target brightness information of the backlight module according to the display data and the display mode; 根据所述目标亮度信息确定所述显示面板的目标灰阶信息；其中，所述目标亮度信息和所述目标灰阶信息负相关。The target grayscale information of the display panel is determined according to the target brightness information; wherein the target brightness information and the target grayscale information are negatively correlated. 5.根据权利要求1所述的显示装置，其特征在于，所述控制单元包括主控芯片、显示驱动芯片和背光驱动芯片；5. The display device according to claim 1, characterized in that the control unit comprises a main control chip, a display driver chip and a backlight driver chip; 所述主控芯片，被配置为获取所述显示装置的显示数据和显示模式，将所述显示数据和所述显示模式发送至所述显示驱动芯片；The main control chip is configured to obtain display data and a display mode of the display device, and send the display data and the display mode to the display driver chip; 所述显示驱动芯片，被配置为根据所述显示数据和所述显示模式确定所述背光模组的目标亮度信息以及所述显示面板的目标灰阶信息；将所述目标亮度信息发送至所述背光驱动芯片；根据所述目标灰阶信息控制所述显示面板；The display driver chip is configured to determine target brightness information of the backlight module and target grayscale information of the display panel according to the display data and the display mode; send the target brightness information to the backlight driver chip; and control the display panel according to the target grayscale information; 所述背光驱动芯片，被配置为根据所述目标亮度信息控制所述背光模组。The backlight driving chip is configured to control the backlight module according to the target brightness information. 6.根据权利要求1所述的显示装置，其特征在于，所述控制单元包括主控芯片、显示驱动芯片和背光驱动芯片；6. The display device according to claim 1, characterized in that the control unit comprises a main control chip, a display driver chip and a backlight driver chip; 所述主控芯片，被配置为获取所述显示装置的显示数据和显示模式，根据所述显示数据和所述显示模式确定所述背光模组的目标亮度信息以及所述显示面板的目标灰阶信息；将所述目标亮度信息发送至所述背光驱动芯片；将所述目标灰阶信息发送至所述显示驱动芯片；The main control chip is configured to obtain display data and a display mode of the display device, determine target brightness information of the backlight module and target grayscale information of the display panel according to the display data and the display mode; send the target brightness information to the backlight driver chip; send the target grayscale information to the display driver chip; 所述显示驱动芯片，被配置为根据所述目标灰阶信息控制所述显示面板；The display driving chip is configured to control the display panel according to the target grayscale information; 所述背光驱动芯片，被配置为根据所述目标亮度信息控制所述背光模组。The backlight driving chip is configured to control the backlight module according to the target brightness information. 7.根据权利要求1所述的显示装置，其特征在于，所述显示装置为投影仪，所述显示面板为液晶显示面板。7 . The display device according to claim 1 , wherein the display device is a projector, and the display panel is a liquid crystal display panel. 8.根据权利要求1所述的显示装置，其特征在于，所述目标亮度信息对应的背光模组功率范围为30W-130W。8 . The display device according to claim 1 , wherein the backlight module power range corresponding to the target brightness information is 30 W-130 W. 9.一种显示控制方法，其特征在于，包括：9. A display control method, comprising: 获取显示装置的显示数据和显示模式；Acquiring display data and display mode of a display device; 根据所述显示数据和所述显示模式确定所述显示装置中的背光模组的目标亮度信息以及所述显示装置中的显示面板的目标灰阶信息；Determine target brightness information of a backlight module in the display device and target grayscale information of a display panel in the display device according to the display data and the display mode; 根据所述目标亮度信息控制所述背光模组；controlling the backlight module according to the target brightness information; 根据所述目标灰阶信息控制所述显示面板。The display panel is controlled according to the target grayscale information. 10.根据权利要求9所述的方法，其特征在于，所述显示模式包括第一显示模式和第二显示模式；10. The method according to claim 9, wherein the display mode comprises a first display mode and a second display mode; 所述根据所述显示数据和所述显示模式确定所述显示装置中的背光模组的目标亮度信息以及所述显示装置中的显示面板的目标灰阶信息，包括：The determining, according to the display data and the display mode, target brightness information of a backlight module in the display device and target grayscale information of a display panel in the display device comprises: 响应于所述显示模式为第一显示模式，根据所述显示数据确定所述背光模组的第一目标亮度信息以及所述显示面板的第一目标灰阶信息；或者，In response to the display mode being the first display mode, determining first target brightness information of the backlight module and first target grayscale information of the display panel according to the display data; or, 响应于所述显示模式为第二显示模式，根据所述显示数据确定所述背光模组的第二目标亮度信息以及所述显示面板的第二目标灰阶信息。In response to the display mode being the second display mode, second target brightness information of the backlight module and second target grayscale information of the display panel are determined according to the display data. 11.根据权利要求10所述的方法，其特征在于，所述根据所述显示数据确定所述背光模组的第一目标亮度信息以及所述显示面板的第一目标灰阶信息，包括：11. The method according to claim 10, wherein determining the first target brightness information of the backlight module and the first target grayscale information of the display panel according to the display data comprises: 对所述显示数据进行检测，确定所述显示数据是否为预设显示数据；Detecting the display data to determine whether the display data is preset display data; 响应于所述显示数据为预设显示数据，确定所述第一目标亮度信息为与所述预设显示数据对应的预设亮度信息，确定所述第一目标灰阶信息为与所述预设显示数据对应的预设灰阶信息。In response to the display data being preset display data, the first target brightness information is determined to be preset brightness information corresponding to the preset display data, and the first target grayscale information is determined to be preset grayscale information corresponding to the preset display data. 12.一种显示控制装置，其特征在于，包括：12. A display control device, comprising: 获取模块，被配置为获取显示装置的显示数据和显示模式；An acquisition module, configured to acquire display data and a display mode of a display device; 确定模块，被配置为根据所述显示数据和所述显示模式确定所述显示装置中的背光模组的目标亮度信息以及所述显示装置中的显示面板的目标灰阶信息；a determination module configured to determine target brightness information of a backlight module in the display device and target grayscale information of a display panel in the display device according to the display data and the display mode; 第一控制模块，被配置为根据所述目标亮度信息控制所述背光模组；A first control module, configured to control the backlight module according to the target brightness information; 第二控制模块，被配置为根据所述目标灰阶信息控制所述显示面板。The second control module is configured to control the display panel according to the target grayscale information. 13.一种电子设备，包括存储器、处理器及存储在存储器上并可在处理器上运行的计算机程序，其特征在于，所述处理器执行所述程序时实现如权利要求9至11任意一项所述的方法。13. An electronic device, comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein when the processor executes the program, the method according to any one of claims 9 to 11 is implemented. 14.一种非暂态计算机可读存储介质，所述非暂态计算机可读存储介质存储计算机指令，其特征在于，所述计算机指令用于使计算机执行权利要求9至11任意一项所述的方法。14. A non-transitory computer-readable storage medium storing computer instructions, wherein the computer instructions are used to enable a computer to execute the method according to any one of claims 9 to 11. 15.一种计算机程序产品，包括计算机程序指令，其特征在于，当所述计算机程序指令在计算机上运行时，使得所述计算机执行如权利要求9至11中任意一项所述的方法。15. A computer program product, comprising computer program instructions, characterized in that when the computer program instructions are executed on a computer, the computer is enabled to execute the method according to any one of claims 9 to 11.
CN202410232305.9A 2024-02-29 2024-02-29 Display device, display control method, related equipment and computer program product Pending CN118016007A (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN119851622A (en) * 2024-09-20 2025-04-18 北京显芯科技有限公司 Display compensation method and display compensation equipment
CN119851622B (en) * 2024-09-20 2025-09-23 北京显芯科技有限公司 Display compensation method and display compensation device

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