CN115171616A - Display dimming method and liquid crystal display device - Google Patents
Display dimming method and liquid crystal display device Download PDFInfo
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- 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
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- 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
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Abstract
The application discloses a display dimming method and a liquid crystal display device, wherein the display dimming method comprises the following steps: acquiring original image data in a target partition in a display device, and acquiring initial brightness corresponding to each pixel unit in the target partition based on the original image data; obtaining target brightness based on a first weighting coefficient, a second weighting coefficient and all the initial brightness, wherein the sum of the first weighting coefficient and the second weighting coefficient is one; and controlling all the pixel units in the target subarea to display at the target brightness. Based on the mode, the display effect can be effectively improved.
Description
Technical Field
The present application relates to the field of display technologies, and in particular, to a display dimming method and a liquid crystal display device.
Background
In the existing display technology, a Local Dimming (Local Dimming) control technology has become a conventional technology applied to a display, the Local Dimming can be performed by performing Dimming control on partitions of each display area in the display, the Local Dimming control technology has the advantages of low power consumption and high contrast, and Local Dimming control methods for performing display based on different Local Dimming algorithms have different characteristics.
The prior art is disadvantageous in that existing relatively conventional local dimming algorithms include an AM (Average Method) algorithm and an SRM (Square Root Method) algorithm. The display effect corresponding to the AM algorithm has a high contrast and a low definition, and the display effect corresponding to the SRM algorithm has a low contrast and a high definition, and there is no local dimming method for displaying based on a local dimming algorithm having a high definition and a high contrast.
Disclosure of Invention
The technical problem that this application mainly solved is how to improve display device's contrast and definition simultaneously.
In order to solve the above technical problem, the first technical solution adopted by the present application is: a display dimming method, comprising: acquiring original image data in a target partition in a display device, and acquiring initial brightness corresponding to each pixel unit in the target partition based on the original image data; obtaining target brightness based on the first weighting coefficient, the second weighting coefficient and all the initial brightness, wherein the sum of the first weighting coefficient and the second weighting coefficient is one; and controlling all pixel units in the target subarea to display at the target brightness.
Obtaining the target brightness based on the first weighting coefficient, the second weighting coefficient and all the initial brightness, including: obtaining a first value based on the first weighting coefficient and one of the total initial brightness; obtaining a second value based on the second weighting coefficient and the total initial brightness; and obtaining the target brightness based on the first value and the second value.
Wherein obtaining a first value based on the first weighting factor and an initial luminance of the total initial luminances includes: the maximum initial brightness in all the initial brightness is multiplied by the first weighting coefficient to obtain a first value.
Wherein obtaining a second value based on the second weighting factor and the total initial brightness comprises: and obtaining a second value based on the second weighting coefficient and the sum of all the initial brightness.
Wherein obtaining a second value based on the second weighting factor and the sum of all initial luminances comprises: performing square root processing on the sum of all initial brightness to obtain a square root value; and multiplying the square value by a second weighting coefficient to obtain a second value.
Before obtaining the target brightness based on the first weighting coefficient, the second weighting coefficient and all the initial brightness, the method includes: acquiring optical parameters of a display device; based on the optical parameter, a first weighting coefficient and a second weighting coefficient are determined.
The pixel unit comprises a backlight layer and a diffusion plate layer; determining a first weighting coefficient and a second weighting coefficient based on the optical parameter, including: acquiring a light mixing distance of the display device and/or a diffusion coefficient of a diffusion plate layer, wherein the light mixing distance is the distance between a backlight layer and the diffusion plate layer; the first weighting coefficient and the second weighting coefficient are determined based on the light mixing distance and/or the diffusion coefficient.
Wherein, controlling all pixel units in the target partition to display with the target brightness comprises: and controlling all pixel units in each subarea in the display device to display at corresponding target brightness respectively.
In order to solve the above technical problem, the second technical solution adopted by the present application is: a liquid crystal display device, comprising: a display device; the acquisition module is used for acquiring original image data in a target partition in the display device and acquiring initial brightness corresponding to each pixel unit in the target partition based on the original image data; the processing module is used for obtaining target brightness based on the first weighting coefficient, the second weighting coefficient and all the initial brightness, and the sum of the first weighting coefficient and the second weighting coefficient is one; and the control module is used for controlling all the pixel units in the target partition to display at the target brightness.
In order to solve the above technical problem, a third technical solution adopted by the present application is: a liquid crystal display device, comprising: a memory, a processor, and a display device; the memory is used for storing program instructions and the processor is used for executing the program instructions to realize the method.
The beneficial effect of this application lies in: different from the prior art, the technical scheme of the application is that a first weighting coefficient and a second weighting coefficient which are added to be one are set, after all initial brightness in a target partition in a display device is obtained, the target brightness corresponding to the target partition is determined by combining all the initial brightness through the first weighting coefficient and the second weighting coefficient, and then the target partition in the display device is controlled to display according to the target brightness. Based on the mode, each partition in the display device can be respectively used as a target partition to determine corresponding target brightness, then each partition is controlled to display based on the corresponding target brightness, and the contrast and the definition of the display device can be improved simultaneously when the display device can display under different hardware conditions through the regulation and control of the first weighting coefficient and the second weighting coefficient.
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In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
FIG. 1 is a schematic flow chart diagram illustrating an embodiment of a dimming method according to the present application;
FIG. 2 is a schematic flow chart diagram illustrating another embodiment of a dimming method according to the present application;
FIG. 3 is a schematic diagram of an embodiment of a liquid crystal display device according to the present application;
fig. 4 is a schematic structural diagram of another embodiment of a liquid crystal display device of the present application.
Detailed Description
The present application will be described in further detail with reference to the following drawings and examples. It is to be noted that the following examples are only illustrative of the present application, and do not limit the scope of the present application. Likewise, the following examples are only some examples and not all examples of the present application, and all other examples obtained by a person of ordinary skill in the art without any inventive step are within the scope of the present application.
Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the application. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. It is explicitly and implicitly understood by one skilled in the art that the embodiments described herein can be combined with other embodiments.
Throughout the description of the present application, it is intended that the terms "mounted," "disposed," "connected," and "connected" be construed broadly and encompass, for example, a fixed connection, a removable connection, or an integral connection unless expressly stated or limited otherwise; can be mechanically connected or electrically connected; they may be directly connected or may be connected via an intermediate medium. To one of ordinary skill in the art, the foregoing may be combined in any suitable manner with the specific meaning ascribed to the present application.
The present application provides a display dimming method, referring to fig. 1, where fig. 1 is a schematic flowchart of an embodiment of the display dimming method of the present application, and the display dimming method includes:
step S11: original image data in a target partition in a display device is acquired, and initial brightness corresponding to each pixel unit in the target partition is acquired based on the original image data.
The display interface in the display device can be divided into a plurality of subareas, and the pixel unit in one subarea is used for displaying a part of image corresponding to the subarea in one frame of image. Each partition is provided with at least one pixel unit, and the at least one pixel unit may be a pixel unit arranged in an array, or may be a pixel unit arranged in another form, which is not limited herein. The target partition may be any one of the number of partitions.
When the original image data in the target partition is obtained, the complete original image data of a frame of image to be displayed by the display device may be obtained, where the complete original image data includes original image data corresponding to all partitions in a display interface of the display device, so that the original image data in the target partition may be extracted based on the complete original image data, the original image data of a partial image of the frame of image to be displayed by the target partition in the display device may also be directly obtained, and the original image data in the target partition may also be obtained in other manners, which may be determined specifically according to actual needs, and is not limited herein.
The one frame of image may be one frame of image in a video, may also be a single image, and may also be an image of another source type, which is not limited herein.
Step S12: and obtaining the target brightness based on the first weighting coefficient, the second weighting coefficient and the whole initial brightness.
Wherein, the sum of the first weighting coefficient and the second weighting coefficient is one.
At least one numerical value can be obtained by calculation according to a preset local dimming algorithm according to all the initial brightness corresponding to the target partition, and weighting is given to the at least one numerical value based on the first weighting coefficient and the second weighting coefficient so as to carry out weighting operation, and finally the target brightness is obtained.
Step S13: and controlling all pixel units in the target subarea to display at the target brightness.
After the target brightness corresponding to the target partition is obtained, all pixel units arranged in the target partition can be controlled, and display operation is carried out according to the target brightness.
From the perspective of the display device, the processing in steps S11 to S13 may be performed for each of the partitions in the display device as the primary target partition, so as to perform the display, that is, the display device with local dimming may be implemented.
When the target brightness corresponding to the target partition is calculated, the first weighting coefficient and the second weighting coefficient are introduced, so that the target brightness is associated with the two weighting coefficients, a user can adjust the two weighting coefficients, the display dimming method can adapt to the display device under any condition, and the display device can have good contrast and definition during display.
Different from the prior art, the technical scheme of the application is that a first weighting coefficient and a second weighting coefficient which are added to be one are set, after all initial brightness in a target partition in a display device is obtained, the target brightness corresponding to the target partition is determined by combining all the initial brightness through the first weighting coefficient and the second weighting coefficient, and then the target partition in the display device is controlled to display according to the target brightness. Based on the mode, each partition in the display device can be respectively used as a target partition to determine corresponding target brightness, then each partition is controlled to display based on the corresponding target brightness, and the contrast and the definition of the display device can be improved simultaneously when the display device can display under different hardware conditions through the regulation and control of the first weighting coefficient and the second weighting coefficient.
The present application further provides a display dimming method, referring to fig. 2, fig. 2 is a schematic flowchart of another embodiment of the display dimming method of the present application, where the display dimming method includes:
step S21: original image data in a target partition in a display device is acquired, and initial brightness corresponding to each pixel unit in the target partition is acquired based on the original image data.
Step S22: and obtaining the target brightness based on the first weighting coefficient, the second weighting coefficient and the whole initial brightness.
Step S23: and controlling all pixel units in the target subarea to display at the target brightness.
Steps S21 to S23 correspond to steps S11 to S13, and are not described herein again.
In an embodiment, the step S22 may specifically include the following steps:
a first value is obtained based on the first weighting factor and an initial brightness among all initial brightnesses.
And obtaining a second value based on the second weighting coefficient and the total initial brightness.
And obtaining the target brightness based on the first value and the second value.
Specifically, a first value may be obtained based on a first weighting coefficient and an initial brightness of all initial brightnesses, so that the first value is associated with the first weighting coefficient, a second value may be obtained based on a second weighting coefficient and all initial brightnesses, so that the second value is associated with the second weighting coefficient, and a target brightness may be obtained by performing a comprehensive process based on the obtained first value and second value, that is, the target brightness may be associated with the first weighting coefficient and the second weighting coefficient, respectively, so that a user may adjust the first weighting coefficient and the second weighting coefficient reasonably, so that the target brightness is adjusted to a value that enables both the contrast and the sharpness of a picture displayed by the display device to be high.
Based on the mode, the incidence relation between the target brightness and the first weighting coefficient and the incidence relation between the target brightness and the second weighting coefficient can be established, so that the target brightness can be rationalized by reasonably adjusting the weighting coefficients by a user, and the contrast and the definition of the display device can be improved simultaneously.
Optionally, obtaining the first value based on the first weighting factor and an initial luminance of all the initial luminances may specifically include the following steps: the maximum initial brightness in all the initial brightness is multiplied by the first weighting coefficient to obtain a first value.
Specifically, after the initial luminances corresponding to all the pixel units in the target partition are obtained, an initial luminance with a maximum value may be extracted from all the initial luminances to serve as a first to-be-weighted value, and then the first to-be-weighted value may be multiplied by a first weighting coefficient to perform weighting processing, so as to assign corresponding weights to the first to-be-weighted value.
In practice, the first value is determined by the evaluation mode of the first value, the first value has a large influence on the contrast of the display device, and the contrast of the display device can be indirectly influenced by adjusting the first weighting coefficient, so that the contrast of the display device is in a good degree, and the display effect of the display device is improved.
Optionally, obtaining the second value based on the second weighting factor and all the initial luminances may specifically include the following steps: and obtaining a second value based on the second weighting coefficient and the sum of all the initial brightness.
Specifically, after the initial luminances corresponding to all the pixel units in the target partition are obtained, the initial luminances may be summed to obtain a sum of all the initial luminances, which is used as a second to-be-weighted value, and then the second to-be-weighted value may be multiplied by a second weighting coefficient to perform weighting processing, so as to assign corresponding weights to the second to-be-weighted value.
Further, obtaining a second value based on the second weighting factor and the sum of all initial luminances may specifically include the following steps: and performing square root processing on the sum of all the initial brightness to obtain a square value. And multiplying the square value by a second weighting coefficient to obtain a second value.
Specifically, the sum of all initial luminances may be summed to obtain a sum of all initial luminances, and then the sum of all initial luminances may be subjected to square root processing to obtain a square value, and the square value may be used as a second value to be weighted and multiplied by a second band weighting coefficient to obtain a second value.
Based on the mode, the detail content of more images can be reserved when each partition is displayed based on the corresponding target brightness through the operation of the square root, the definition of the display device is improved, and the display effect of the display device is improved.
In practice, the second value is determined by the evaluation mode of the second value, the second value has a larger hero for the definition of the display device, and the definition of the display device can be indirectly influenced by adjusting the second weighting coefficient, so that the definition of the display device is in a better degree, and the display effect of the display device is improved.
It should be noted that obtaining the first value based on the first weighting factor and one of the total initial luminances includes: the maximum initial brightness in all the initial brightness is multiplied by the first weighting coefficient to obtain the first value, and the first weighting coefficient and the second weighting coefficient can be cooperatively adjusted to enable the display device to be in a state with good contrast and definition, so that the situation of too low contrast or definition is avoided, and the display effect of the display device is improved.
For example, the target brightness may be calculated according to the following formula:
in equation (1), BLK (i, j) is the target luminance of the target partition, which is the partition of the ith row and jth column in the display device, C (x) is the initial luminance of the xth pixel unit in the target partition, n is the first weighting coefficient, and (1-n) is the second weighting coefficient.
Based on the above formula, the target brightness of the corresponding target partition can be obtained for use when the target partition is controlled to display, and the display effect of the display device can be effectively improved.
It should be noted that, in an actual experiment, when the same image is displayed based on the conventional AM algorithm, the SRM algorithm, and the display dimming method of the present application, the luminance distribution conditions of the pixel points corresponding to the obtained image are shown in table 1:
TABLE 1
Compared with the AM algorithm, the content of the pixel points in the low-brightness area in the display dimming method is less, the detail display of the image is enhanced, and the definition of the image is also improved. Compared with the SRM algorithm, the content difference of the pixel points in the low-brightness area in the display dimming method is not large, but the content of the pixel points in the medium-brightness area is increased, and the contrast of the image is improved. In summary, the present application shows that the dimming method can make the display device have better contrast and definition at the same time.
In an embodiment, before the step of obtaining the target luminance based on the first weighting coefficient, the second weighting coefficient, and all the initial luminances, the method may further include the following steps: optical parameters of a display device are acquired. Based on the optical parameter, a first weighting coefficient and a second weighting coefficient are determined.
Specifically, optical parameters corresponding to optical components in the display device can be acquired to know optical characteristics of the display device, and the first weighting coefficient and the second weighting coefficient are determined based on the optical parameters, so that the first weighting coefficient and the second weighting coefficient can be in a range adapted to the display device, and further, when each partition in the display device is displayed based on corresponding target brightness, the contrast and the definition of the display device can be improved simultaneously, and the display effect of the display device is improved.
In practice, if the optical parameters corresponding to different sub-areas are different in a display device, in one display device, when the processing in steps S21 to S23 is performed on the sub-areas with different optical parameters as target sub-areas, the weighting coefficients (such as the first weighting coefficient and the second weighting coefficient) corresponding to the sub-areas with different optical parameters may be determined according to the different optical parameters, so that each sub-area can be displayed based on more reasonable target brightness, and the display effect of the display device is further improved.
Optionally, the pixel unit includes a backlight layer and a diffusion plate layer.
Determining the first weighting coefficient and the second weighting coefficient based on the optical parameter may specifically include the following steps:
and acquiring a light mixing distance of the display device and/or a diffusion coefficient of the diffusion plate layer, wherein the light mixing distance is a distance between the backlight layer and the diffusion plate layer. The first weighting factor and the second weighting factor are determined on the basis of the mixing distance and/or the diffusion factor.
Specifically, the light mixing distance and the diffusion coefficient of the diffusion plate layer are both optical parameters of the display device, and the first weighting coefficient and the second weighting coefficient may also be determined based on other optical parameters, which may be determined according to actual requirements, and is not limited herein.
Based on the light mixing distance and the diffusion coefficient, a preset optical coefficient processing algorithm is adopted to obtain a first weighting coefficient and a second weighting coefficient.
Optionally, controlling all pixel units in the target partition to display at the target brightness includes:
and controlling all pixel units in each subarea in the display device to display at corresponding target brightness respectively.
Specifically, each partition in the display device may be respectively used as a target partition to determine a corresponding target brightness, and then each partition is controlled to perform display based on the corresponding target brightness, so that a picture displayed by the display device has higher contrast and definition at the same time, and the display effect of the display device is improved.
Different from the prior art, the technical scheme of the application is that a first weighting coefficient and a second weighting coefficient which are added to be one are set, after all initial brightness in a target partition in a display device is obtained, the target brightness corresponding to the target partition is determined by combining all the initial brightness through the first weighting coefficient and the second weighting coefficient, and then the target partition in the display device is controlled to display according to the target brightness. Based on the mode, each partition in the display device can be respectively used as a target partition to determine corresponding target brightness, then each partition is controlled to display based on the corresponding target brightness, and the contrast and the definition of the display device can be improved simultaneously when the display device can display under different hardware conditions through the regulation and control of the first weighting coefficient and the second weighting coefficient.
The present application further proposes a liquid crystal display device, referring to fig. 3, fig. 3 is a schematic structural diagram of an embodiment of the liquid crystal display device of the present application, and the liquid crystal display device includes a display device 31, an obtaining module 32, a processing module 33, and a control module 34.
The obtaining module 32 is configured to obtain original image data in a target partition in the display device, and obtain initial brightness corresponding to each pixel unit in the target partition based on the original image data.
The processing module 33 is configured to obtain a sum of the first weighting coefficient and the second weighting coefficient of the target luminance as one based on the first weighting coefficient, the second weighting coefficient and all the initial luminances.
The control module 34 is used for controlling all pixel units in the target partition to display at the target brightness.
Different from the prior art, the technical scheme of the application is that a first weighting coefficient and a second weighting coefficient which are added to be one are set, after all initial brightness in a target partition in a display device is obtained, the target brightness corresponding to the target partition is determined by combining all the initial brightness through the first weighting coefficient and the second weighting coefficient, and then the target partition in the display device is controlled to display according to the target brightness. Based on the mode, each partition in the display device can be respectively used as a target partition to determine corresponding target brightness, then each partition is controlled to display based on the corresponding target brightness, and the contrast and the definition of the display device can be improved simultaneously when the display device can display under different hardware conditions through the regulation and control of the first weighting coefficient and the second weighting coefficient.
The present application further proposes a liquid crystal display device, referring to fig. 4, fig. 4 is a schematic structural diagram of another embodiment of the liquid crystal display device of the present application, and the liquid crystal display device includes: processor 41, memory 42, bus 43, and display device 44. Display device 44 may be any of the display devices described in any of the embodiments above.
The processor 41, the memory 42, and the display device 44 are respectively connected to the bus 43, the memory 42 stores program instructions, and the processor 41 is configured to execute the program instructions to implement the display dimming method in the above embodiment.
In the present embodiment, the processor 41 may also be referred to as a CPU (Central Processing Unit). The processor 41 may be an integrated circuit chip having signal processing capabilities. The processor 41 may also be a general purpose processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), a Field Programmable Gate Array (FPGA) or other programmable logic device, discrete gate or transistor logic, discrete hardware components. A general purpose processor may be a microprocessor or the processor 41 may be any conventional processor or the like.
Different from the prior art, the technical scheme of the application is that a first weighting coefficient and a second weighting coefficient which are added to be one are set, after all initial brightness in a target partition in a display device is obtained, the target brightness corresponding to the target partition is determined by combining all the initial brightness through the first weighting coefficient and the second weighting coefficient, and then the target partition in the display device is controlled to display according to the target brightness. Based on the mode, each partition in the display device can be respectively used as a target partition to determine corresponding target brightness, then each partition is controlled to display based on the corresponding target brightness, and the contrast and the definition of the display device can be improved simultaneously when the display device can display under different hardware conditions through the regulation and control of the first weighting coefficient and the second weighting coefficient.
In the description of the present application, reference to the description of the terms "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present application. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Moreover, various embodiments or examples and features of various embodiments or examples described in this specification can be combined and combined by one skilled in the art without being mutually inconsistent.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present application, "plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
Any process or method descriptions in flow charts or otherwise described herein may be understood as representing modules, segments, or portions of code which include one or more executable instructions for implementing specific logical functions or steps of the process, and the scope of the preferred embodiments of the present application includes other implementations in which functions may be executed out of order from that shown or discussed, including substantially concurrently or in reverse order, depending on the functionality involved, as would be understood by those reasonably skilled in the art of the present application.
The logic and/or steps represented in the flowcharts or otherwise described herein, such as an ordered listing of executable instructions that can be viewed as implementing logical functions, can be embodied in any computer-readable medium for use by or in connection with an instruction execution system, apparatus, or device (e.g., a personal computer, server, network device, or other system that can fetch the instructions from the instruction execution system, apparatus, or device and execute the instructions). For the purposes of this description, a "computer-readable medium" can be any means that can contain, store, communicate, propagate, or transport the program for use by or in connection with the instruction execution system, apparatus, or device. More specific examples (a non-exhaustive list) of the computer-readable medium would include the following: an electrical connection (electronic device) having one or more wires, a portable computer diskette (magnetic device), a Random Access Memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber device, and a portable compact disc read-only memory (CDROM). Further, the computer-readable medium could even be paper or another suitable medium upon which the program is printed, as the program can be electronically captured, via for instance optical scanning of the paper or other medium, then compiled, interpreted or otherwise processed in a suitable manner if necessary, and then stored in a computer memory.
The above description is only for the purpose of illustrating embodiments of the present application and is not intended to limit the scope of the present application, and all modifications of equivalent structures and equivalent processes, which are made by the contents of the specification and the drawings of the present application or are directly or indirectly applied to other related technical fields, are also included in the scope of the present application.
Claims (10)
1. A method of dimming a display, comprising:
acquiring original image data in a target partition in a display device, and acquiring initial brightness corresponding to each pixel unit in the target partition based on the original image data;
obtaining target brightness based on a first weighting coefficient, a second weighting coefficient and all the initial brightness, wherein the sum of the first weighting coefficient and the second weighting coefficient is one;
and controlling all the pixel units in the target subarea to display at the target brightness.
2. The method according to claim 1, wherein obtaining the target brightness based on the first weighting factor, the second weighting factor and all of the initial brightness comprises:
obtaining a first value based on the first weighting coefficient and one of all the initial brightness;
obtaining a second value based on the second weighting coefficient and all the initial brightness;
and obtaining the target brightness based on the first value and the second value.
3. The method according to claim 2, wherein obtaining the first value based on the first weighting factor and an initial brightness of all the initial brightnesses comprises:
and multiplying the maximum initial brightness in all the initial brightness by the first weighting coefficient to obtain a first value.
4. The method according to claim 2 or 3, wherein the deriving a second value based on the second weighting factor and all of the initial luminances comprises:
and obtaining a second value based on the second weighting coefficient and the sum of all the initial brightness.
5. The display dimming method of claim 4, wherein the deriving a second value based on the second weighting factor and a sum of all the initial luminances comprises:
performing square root processing on the sum of all the initial brightness to obtain a square value;
and multiplying the square value by the second weighting coefficient to obtain a second value.
6. The display dimming method according to any one of claims 1 to 3 and 5, before the obtaining of the target brightness based on the first weighting coefficient, the second weighting coefficient and all of the initial brightness, comprising:
acquiring optical parameters of the display device;
determining the first and second weighting coefficients based on the optical parameter.
7. The display dimming method according to claim 6, wherein the pixel unit comprises a backlight layer and a diffusion plate layer;
the determining the first and second weighting coefficients based on the optical parameter comprises:
acquiring a light mixing distance of the display device and/or a diffusion coefficient of the diffusion plate layer, wherein the light mixing distance is a distance between the backlight layer and the diffusion plate layer;
determining the first weighting coefficient and the second weighting coefficient based on the light mixing distance and/or the diffusion coefficient.
8. The display dimming method according to any one of claims 1 to 3 and 5, wherein the controlling all the pixel units within the target partition to perform display at the target brightness comprises:
and controlling all pixel units in each partition in the display device to display at corresponding target brightness respectively.
9. A liquid crystal display device, comprising:
a display device;
the acquisition module is used for acquiring original image data in a target partition in the display device and acquiring initial brightness corresponding to each pixel unit in the target partition based on the original image data;
the processing module is used for obtaining target brightness based on a first weighting coefficient, a second weighting coefficient and all the initial brightness, and the sum of the first weighting coefficient and the second weighting coefficient is one;
and the control module is used for controlling all the pixel units in the target subarea to display with the target brightness.
10. A liquid crystal display device, comprising: a memory, a processor, and a display device;
the memory is for storing program instructions, and the processor is for executing the program instructions to implement the method of any one of claims 1-8.
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