CN112382242B - Color temperature adjusting method and device, terminal equipment and computer readable storage medium - Google Patents
Color temperature adjusting method and device, terminal equipment and computer readable storage medium Download PDFInfo
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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
- G09G3/3406—Control of illumination source
- G09G3/342—Control of illumination source using several illumination sources separately controlled corresponding to different display panel areas, e.g. along one dimension such as lines
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/34—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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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2320/00—Control of display operating conditions
- G09G2320/06—Adjustment of display parameters
- G09G2320/0666—Adjustment of display parameters for control of colour parameters, e.g. colour temperature
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Abstract
The invention discloses a color temperature adjusting method, a color temperature adjusting device, terminal equipment and a computer readable storage medium, wherein the method comprises the following steps: analyzing a current display picture in a display screen to obtain color temperature information of the display screen; adjusting color temperatures of the backlight partitions based on the color temperature information, and adjusting pixels of the display area based on the color temperature information; and adjusting the color temperature of the display subarea corresponding to the display screen based on the adjusted color temperature of the backlight subarea and the adjusted pixels of the display area. Therefore, the color temperature of the display subarea corresponding to the display screen is adjusted by analyzing the display picture in the display screen to obtain the color temperature information of the display screen, adjusting the color temperature of the backlight subarea according to the color temperature information, adjusting the pixels of the display area according to the color temperature information, and finally combining the adjusted color temperature of the backlight subarea and the adjusted pixels of the display area to realize the dynamic adjustment of the color temperatures of different areas of the image.
Description
Technical Field
The present invention relates to the field of luminance display technologies, and in particular, to a color temperature adjustment method, an apparatus, a terminal device, and a computer-readable storage medium.
Background
In the application of the liquid crystal display device at present, before the liquid crystal display device leaves a factory, a manufacturer sets a certain fixed color temperature value in the liquid crystal display device, and presets several color temperature values in the liquid crystal display device for consumers to select. For example, when the liquid crystal display device receives a high color temperature image, that is, an image with a high blue light ratio, and the high color temperature image is to be displayed, it is necessary to reduce the components of RG pixels in RGB (three primary colors) pixels of the high color temperature image, and since the backlight cannot adjust the color temperature, the high color temperature image display can be realized only by reducing the transmittance of the RG pixels on the screen, and then the overall brightness of the high color temperature image is reduced.
In addition, at present, there is no method for realizing different color temperatures for different areas of the lcd tv, and the color temperature of some pictures may be different in different areas.
Disclosure of Invention
The invention mainly aims to provide a color temperature adjusting method, a color temperature adjusting device, terminal equipment and a computer readable storage medium, and aims to dynamically adjust color temperatures of different areas of an image.
In order to achieve the above object, an embodiment of the present invention provides a color temperature adjustment method, where the color temperature adjustment method includes:
analyzing a current display picture in a display screen to obtain color temperature information of the display screen;
adjusting color temperatures of the backlight partitions based on the color temperature information, and adjusting pixels of the display area based on the color temperature information;
and adjusting the color temperature of the display subarea corresponding to the display screen based on the adjusted color temperature of the backlight subarea and the adjusted pixels of the display area.
Optionally, the step of adjusting the color temperature of the backlight partition based on the color temperature information includes:
controlling the current of the backlight subarea according to the color temperature information so as to adjust the brightness of the corresponding backlight subarea; and adjusting the color temperature of the backlight subarea based on the adjusted brightness of the backlight subarea.
Optionally, the step of controlling the current of the backlight partition according to the color temperature information includes:
analyzing the color temperature information;
if the color temperature information is high color temperature, enhancing backlight current corresponding to each light bar in the backlight subarea; or,
and if the color temperature information is low color temperature, weakening the backlight current corresponding to each lamp bar in the backlight subarea.
Optionally, the step of adjusting the pixels of the display area based on the color temperature information includes:
determining input voltages of RGB pixel points in the display area based on the color temperature information;
and controlling the pixel transmittance of the RGB pixel points according to the input voltage so as to adjust the pixels of the display area according to the pixel transmittance.
Optionally, the step of adjusting the color temperature of the display partition corresponding to the display screen based on the adjusted color temperature of the backlight partition and the adjusted pixels of the display area includes:
and linking the color temperature of the adjusted backlight subarea with the pixels of the adjusted display area to obtain a corresponding linkage color temperature, and adjusting the color temperature of the display subarea corresponding to the display screen based on the linkage color temperature.
Optionally, the step of analyzing the current display picture in the display screen to obtain the color temperature information of the display screen includes:
analyzing a current display picture in a display screen, determining a color temperature value of each image content in the display picture, and determining color temperature information of the display screen according to the color temperature value.
Optionally, after the step of analyzing the current display picture in the display screen to obtain the color temperature information of the display screen, the method further includes:
detecting whether the backlight type corresponding to the backlight partition is a color temperature adjustable type;
and if the backlight type corresponding to the backlight partition is detected to be the color temperature adjustable type, executing the step of adjusting the color temperature of the backlight partition based on the color temperature information.
An embodiment of the present invention further provides a color temperature adjusting apparatus, where the color temperature adjusting apparatus includes:
the analysis module is used for analyzing a current display picture in a display screen to obtain color temperature information of the display screen;
the adjusting module is used for adjusting the color temperature of the backlight subarea based on the color temperature information and adjusting the pixels of the display area based on the color temperature information;
the adjusting module is further used for adjusting the color temperature of the display subarea corresponding to the display screen based on the adjusted color temperature of the backlight subarea and the adjusted pixels of the display area.
The embodiment of the present invention further provides a terminal device, where the terminal device includes a memory, a processor, and a color temperature adjustment program stored in the memory and running on the processor, and when the color temperature adjustment program is executed by the processor, the steps of the color temperature adjustment method described above are implemented.
An embodiment of the present invention further provides a computer-readable storage medium, where a color temperature adjustment program is stored on the computer-readable storage medium, and when being executed by a processor, the color temperature adjustment program implements the steps of the color temperature adjustment method described above.
According to the color temperature adjusting method, the color temperature adjusting device, the terminal equipment and the computer readable storage medium, the color temperature information of the display screen is obtained by analyzing the current display picture in the display screen; adjusting color temperatures of the backlight partitions based on the color temperature information, and adjusting pixels of the display area based on the color temperature information; and adjusting the color temperature of the display subarea corresponding to the display screen based on the adjusted color temperature of the backlight subarea and the adjusted pixels of the display area. Therefore, in the process of adjusting the color temperature, the display picture in the display screen is analyzed to obtain the color temperature information of the display screen, then the color temperature of the backlight subarea is adjusted according to the color temperature information, then the pixels of the display area are adjusted according to the color temperature information, and finally the color temperature of the display subarea corresponding to the display screen is adjusted by combining the adjusted color temperature of the backlight subarea and the adjusted pixels of the display area, so that the color temperature of different areas of the image is dynamically adjusted.
Drawings
Fig. 1 is a schematic structural diagram of a terminal device in a hardware operating environment according to an embodiment of the present invention;
FIG. 2 is a schematic flow chart of a color temperature adjustment method according to a first embodiment of the present invention;
FIG. 3 is a schematic flow chart of a color temperature adjustment method according to a second embodiment of the present invention;
FIG. 4 is a flowchart illustrating a color temperature adjustment method according to a third embodiment of the present invention;
fig. 5 is a functional block diagram of the color temperature adjustment apparatus according to the present invention.
The implementation, functional features and advantages of the present invention will be further described with reference to the accompanying drawings.
Detailed Description
It should be understood that the specific embodiments described herein are merely illustrative of the invention and do not limit the invention.
The main solution of the embodiment of the invention is as follows: analyzing a current display picture in a display screen to obtain color temperature information of the display screen; adjusting color temperatures of the backlight partitions based on the color temperature information, and adjusting pixels of the display area based on the color temperature information; and adjusting the color temperature of the display subarea corresponding to the display screen based on the adjusted color temperature of the backlight subarea and the adjusted pixels of the display area. Therefore, in the process of adjusting the color temperature, the display picture in the display screen is analyzed to obtain the color temperature information of the display screen, then the color temperature of the backlight subarea is adjusted according to the color temperature information, then the pixels of the display area are adjusted according to the color temperature information, and finally the color temperature of the display subarea corresponding to the display screen is adjusted by combining the adjusted color temperature of the backlight subarea and the adjusted pixels of the display area, so that the color temperature of different areas of the image is dynamically adjusted.
Specifically, referring to fig. 1, fig. 1 is a schematic structural diagram of a terminal device in a hardware operating environment according to an embodiment of the present invention.
The terminal device of the embodiment of the invention can be an intelligent mobile terminal with a data processing function, such as a mobile phone, a tablet personal computer and the like, and can also be a liquid crystal display device, a fixed terminal device or a server and the like with a data processing function.
As shown in fig. 1, the terminal device may include: a processor 1001, such as a CPU (Central Processing Unit), a memory 1005, a user interface 1003, a network interface 1004, and a communication bus 1002. A communication bus 1002 is used to enable connection communications between these components. The user interface 1003 may include a Display (Display), an input unit such as a keyboard (board), and the user interface 1003 may optionally include a standard wired interface (such as a USB (Universal Serial Bus) interface), and a wireless interface (such as a bluetooth interface). The network interface 1004 may include a standard wired interface, a Wireless interface (e.g., a WI-FI interface). The memory 1005 may be a high-speed RAM memory or a non-volatile memory such as a disk memory. The memory 1005 may alternatively be a storage device separate from the processor 1001 described previously. Optionally, the terminal device may further include an RF (Radio Frequency) circuit, a sensor, a WiFi module, and the like.
Those skilled in the art will appreciate that the terminal device configuration shown in fig. 1 is not limiting of terminal devices and may include more or fewer components than shown, or some components may be combined, or a different arrangement of components.
As shown in fig. 1, a memory 1005, which is a kind of computer storage medium, may include therein an operating device, a network communication module, a user interface module, and a color temperature adjustment program. The operating device is a program for managing and controlling hardware and software resources of the terminal device, and supports the operation of the color temperature adjusting program and other software or programs.
In the terminal device shown in fig. 1, the network interface 1004 is mainly used for connecting to a backend server and performing data communication with the backend server; the user interface 1003 is mainly used for connecting a client and performing data communication with the client; among other things, the processor 1001 may be configured to call a color temperature adjustment program stored in the memory 1005, and perform the following operations:
analyzing a current display picture in a display screen to obtain color temperature information of the display screen;
adjusting color temperatures of the backlight partitions based on the color temperature information, and adjusting pixels of the display area based on the color temperature information;
and adjusting the color temperature of the display subarea corresponding to the display screen based on the adjusted color temperature of the backlight subarea and the adjusted pixels of the display area.
Further, the processor 1001 may call the color temperature adjustment program stored in the memory 1005, and further perform the following operations:
controlling the current of the backlight subarea according to the color temperature information so as to adjust the brightness of the corresponding backlight subarea; and adjusting the color temperature of the backlight subarea based on the adjusted brightness of the backlight subarea.
Further, the processor 1001 may call a color temperature adjustment program stored in the memory 1005, and further perform the following operations:
analyzing the color temperature information;
if the color temperature information is high color temperature, enhancing backlight current corresponding to each light bar in the backlight subarea; or,
and if the color temperature information is low color temperature, weakening the backlight current corresponding to each lamp strip in the backlight subarea.
It should be noted that the light bar may include only one LED lamp, or include a plurality of LED lamps, which is not limited herein.
Further, the processor 1001 may call a color temperature adjustment program stored in the memory 1005, and further perform the following operations:
determining input voltages of RGB pixel points in the display area based on the color temperature information;
and controlling the pixel transmittance of the RGB pixel points according to the input voltage so as to adjust the pixels of the display area according to the pixel transmittance.
Further, the processor 1001 may call a color temperature adjustment program stored in the memory 1005, and further perform the following operations:
and linking the color temperature of the adjusted backlight subarea with the pixels of the adjusted display area to obtain a corresponding linkage color temperature, and adjusting the color temperature of the display subarea corresponding to the display screen based on the linkage color temperature.
Further, the processor 1001 may call the color temperature adjustment program stored in the memory 1005, and further perform the following operations:
analyzing a current display picture in a display screen, determining a color temperature value of each image content in the display picture, and determining color temperature information of the display screen according to the color temperature value.
Further, the processor 1001 may call a color temperature adjustment program stored in the memory 1005, and further perform the following operations:
detecting whether the backlight type corresponding to the backlight partition is a color temperature adjustable type;
and if the backlight type corresponding to the backlight partition is detected to be the color temperature adjustable type, executing the step of adjusting the color temperature of the backlight partition based on the color temperature information.
The embodiment of the invention obtains the color temperature information of the display screen by analyzing the current display picture in the display screen; adjusting color temperatures of the backlight partitions based on the color temperature information, and adjusting pixels of the display area based on the color temperature information; and adjusting the color temperature of the display subarea corresponding to the display screen based on the adjusted color temperature of the backlight subarea and the adjusted pixels of the display area. Therefore, in the process of adjusting the color temperature, the display picture in the display screen is analyzed to obtain the color temperature information of the display screen, then the color temperature of the backlight subarea is adjusted according to the color temperature information, then the pixels of the display area are adjusted according to the color temperature information, and finally the color temperature of the display subarea corresponding to the display screen is adjusted by combining the adjusted color temperature of the backlight subarea and the adjusted pixels of the display area, so that the color temperature of different areas of the image is dynamically adjusted.
Based on the above terminal device architecture but not limited to the above architecture, the embodiments of the present invention provide an embodiment of a color temperature adjustment method, and it should be noted that although a logical sequence is shown in the flowchart, under some data, the steps shown or described may be completed in a different sequence from that here.
The execution subject of the method in the embodiment of the present invention may be a color temperature adjustment device, or may be a liquid crystal display device.
Referring to fig. 2, fig. 2 is a flowchart illustrating a color temperature adjustment method according to a first embodiment of the invention. The color temperature adjustment method includes:
and S10, analyzing the current display picture in the display screen to obtain the color temperature information of the display screen.
It should be noted that the liquid crystal display device at least includes a System On Chip (SOC) System, a power supply driver, a screen driver (TCON), a backlight partition, and a display area. The backlight partition is at least composed of a Printed Circuit Board (PCB) Board, a light bar or a chip with adjustable color temperature, wherein the size of the light bar or the chip is preferably mini (micro) below 500um (micrometer). The backlight partition at least comprises light bars or chips with two colors, one of the light bars or chips with two colors is a blue light bar or a blue chip, the other one is a green light bar or a green chip, or the other one is a red light bar or a red light chip. The backlight subarea can also contain lampwicks or chips with three colors of blue, green and red. The lamp beads in the backlight plate can only have two blue light chips, but the two blue light chips of each lamp bead can respectively and independently control the current, and the fluorescent powder packaged on the two blue light chips is different, so that the white light spectrum and the color temperature excited by the two blue light chips are different. The single LED of each lamp panel can realize the regulation and control output of different color temperatures no matter what scheme the lamp panel is composed of. The display area at least comprises a liquid crystal screen and RGB (red, green and blue) pixel points.
After the liquid crystal display device receives image data (i.e., a display image) through an intelligent network, where the intelligent network includes, but is not limited to, WIFI (Wireless Fidelity, wireless local area network) and an intelligent gateway. Then, the liquid crystal display device determines each display subarea in the liquid crystal display device through an SOC system in the liquid crystal display device, wherein the display subareas are different position areas in a display screen of the liquid crystal display device, the subarea size and the subarea number of the display subareas are determined by the performance of the liquid crystal display device, then the SOC system acquires the image content of the current display picture in the display screen, analyzes the image content according to the corresponding display subareas, determines the color temperature value of the image content in each display subarea, and determines the color temperature information corresponding to each display subarea according to each color temperature value.
And S40, adjusting the color temperature of the backlight subarea based on the color temperature information, and adjusting pixels of a display area based on the color temperature information.
The SOC system determines color temperature information corresponding to each display partition, transmits the color temperature information corresponding to each display partition to the power supply driver, the power supply driver receives the color temperature information corresponding to each display partition, adjusts each backlight current corresponding to each display partition in the backlight partition according to each color temperature information, adjusts the brightness of a light bar or a chip corresponding to each display partition in the backlight partition according to each backlight current, and adjusts the light bar color temperature or the chip color temperature of the light bar or the chip corresponding to each display partition in the backlight partition according to the brightness of the light bar or the chip, wherein the light bar color temperature or the chip color temperature backlight color temperature is the same as that of each display partition in the backlight partition, namely the backlight color temperature partition. Meanwhile, the SOC system transmits color temperature information corresponding to each display subarea to the screen driver, after the screen driver receives the color temperature information corresponding to each display subarea, the screen driver adjusts each input voltage of each display subarea corresponding to the display area according to the color temperature information corresponding to each display subarea, adjusts the transmissivity of RGB pixel points corresponding to each display subarea in the display area according to each input voltage, and adjusts pixels corresponding to each display subarea in the display area according to the transmissivity of the RGB pixel points. And each display subarea corresponding to the display area is also the color temperature subarea of the display screen.
In this embodiment, for example, the liquid crystal display device includes four ABCD display partitions, the color temperature information of the display partition a is a high color temperature, that is, the ratio of blue light in the display screen is high, the power supply drives the backlight partition a to enhance the backlight current of the light bar or chip in the display partition a, maintain the brightness of the light bar or chip in the display partition a, and adjust the color temperature of the light bar in the display partition a.
And S50, adjusting the color temperature of the display subarea corresponding to the display screen based on the adjusted color temperature of the backlight subarea and the adjusted pixels of the display area.
And after the power supply drive adjusts the color temperature of the light bar corresponding to each display subarea according to the color temperature information corresponding to each display subarea, the liquid crystal display equipment combines the adjusted color temperature of the light bar of each display subarea and the adjusted pixel and adjusts the color temperature of each display subarea according to each combined color temperature.
Further, the step S10 includes:
step S101, analyzing a current display picture in a display screen, determining a color temperature value of each image content in the display picture, and determining color temperature information of the display screen according to the color temperature value.
Specifically, after the liquid crystal display device receives the display picture, each display partition of a display screen in the liquid crystal display device is determined through an SOC system in the liquid crystal display device, then image content in the display picture is obtained, the image content is analyzed according to each corresponding display partition, a color temperature value of the image content in each display partition in the display screen is determined, and color temperature information corresponding to each display partition in the display screen is determined according to the size of the color temperature value in each display partition. The larger the color temperature value, that is, the higher the color temperature, the higher the proportion of blue in the cool tone, that is, the color. Conversely, the smaller the color temperature value, i.e., the lower the color temperature, the higher the red proportion in the warm-tone color.
For example, the color temperature value is 10000K (kelvin), and the corresponding color temperature information is 10000K cool tone. The color temperature value is 5500K corresponding color temperature information 5500K warm tone.
Further, after the step of analyzing the current display picture in the display screen to obtain the color temperature information of the display screen in the step S10, the method further includes:
step S20, detecting whether the backlight type corresponding to the backlight partition is a color temperature adjustable type;
step S30, if it is detected that the backlight type corresponding to the backlight partition is the color temperature adjustable type, performing the step of adjusting the color temperature of the backlight partition based on the color temperature information.
Specifically, after the liquid crystal display device determines color temperature information of a display picture, a backlight type corresponding to a backlight partition in the liquid crystal display device is obtained, whether the backlight type corresponding to the backlight partition is a color temperature adjustable type is detected, if the liquid crystal display device detects that the backlight type is the color temperature adjustable type, the liquid crystal display device executes steps S40 to S50 in the first embodiment, and if the liquid crystal display device detects that the backlight type is not the color temperature adjustable type, the liquid crystal display device adjusts color temperatures of the display partitions through color temperatures of the display partitions (screen color temperature partitions) in the display area.
The embodiment realizes that the color temperature information of the display screen is obtained by analyzing the current display picture in the display screen; adjusting color temperatures of the backlight partitions based on the color temperature information, and adjusting pixels of the display area based on the color temperature information; and adjusting the color temperature of the display subarea corresponding to the display screen based on the adjusted color temperature of the backlight subarea and the adjusted pixels of the display area. Therefore, in the color temperature adjustment process, the display picture in the display screen is analyzed to obtain the color temperature information of the display screen, then the color temperature of the backlight partition is adjusted according to the color temperature information, then the pixels of the display area are adjusted according to the color temperature information, and finally the color temperature of the display partition corresponding to the display screen is adjusted by combining the adjusted color temperature of the backlight partition and the adjusted pixels of the display area, so that the color temperature of different areas of the image is dynamically adjusted.
Referring to fig. 3, fig. 3 is a flowchart illustrating a second embodiment of a color temperature adjustment method according to the present invention, the difference between the second embodiment and the first embodiment is that the step S40 of adjusting color temperatures of backlight partitions based on the color temperature information and adjusting pixels of a display area based on the color temperature information includes:
step S401, controlling the current of the backlight subarea according to the color temperature information so as to adjust the brightness of the corresponding backlight subarea;
step S402, adjusting the color temperature of the backlight subarea based on the adjusted brightness of the backlight subarea;
step S403, determining input voltages of RGB pixel points in the display area based on the color temperature information;
step S404, controlling the pixel transmittance of the RGB pixel according to the input voltage, so as to adjust the pixels of the display area according to the pixel transmittance.
Specifically, a power supply drive in the liquid crystal display device adjusts each backlight current corresponding to each display partition in the backlight partition according to the color temperature information corresponding to each display partition, adjusts the corresponding lamp strip brightness in each display partition of the backlight partition according to each backlight current, and adjusts the lamp strip color temperature of the corresponding lamp strip in each display partition of the backlight partition through the lamp strip brightness. Meanwhile, the screen driver in the liquid crystal display device adjusts each input voltage of each corresponding display partition in the display area according to the color temperature information corresponding to each display partition, adjusts the transmissivity of the corresponding RGB pixel points in each display partition of the display area according to each input voltage, and adjusts the pixels corresponding to each display partition in the display area according to the transmissivity of the RGB pixel points.
Further, in the step S401, the step of controlling the current of the backlight partition according to the color temperature information to adjust the brightness of the corresponding backlight partition includes:
step S4011, analyzing the color temperature information;
step S4012, if the color temperature information is a high color temperature, enhancing backlight current corresponding to each light bar in the backlight partition;
step S4013, if the color temperature information is a low color temperature, weakening a backlight current corresponding to each light bar in the backlight partition.
Specifically, the power driver in the liquid crystal display device analyzes the color temperature information to obtain a corresponding analysis result, where the analysis result includes but is not limited to whether the color temperature information is a high color temperature or a low color temperature, if the power driver determines that the color temperature information is the high color temperature, the power driver increases the backlight current corresponding to each light bar in the backlight partition, if the power driver determines that the color temperature information is the low color temperature, the power driver weakens the backlight current corresponding to each light bar in the backlight partition, and adjusts the brightness corresponding to each light bar by increasing or weakening the backlight current. Note that the high color temperature, that is, the ratio of blue in the RGB color, is greater than red and greater than green, and the low color temperature, that is, the ratio of red in the RGB color, is greater than blue and greater than green.
The current of the backlight subarea is controlled according to the color temperature information so as to adjust the brightness of the corresponding backlight subarea; adjusting the color temperature of the backlight subarea based on the adjusted brightness of the backlight subarea; determining input voltage of RGB pixel points in a display area based on the color temperature information; and controlling the pixel transmittance of the RGB pixel points according to the input voltage so as to adjust the pixels of the display area according to the pixel transmittance. Therefore, in the process of adjusting the color temperature and the pixels of the light bar, the backlight current is adjusted according to the color temperature information, the input voltage is adjusted according to the color temperature information, the color temperature of the light bar is adjusted through the backlight current, and the pixels are adjusted through the input voltage, so that the purpose of dynamically adjusting the color temperature of the image is achieved.
Referring to fig. 4, fig. 4 is a schematic flow chart of a third embodiment of the color temperature adjusting method of the invention, and the difference between the third embodiment and the first embodiment or the second embodiment is that, in the step S50, the step of adjusting the color temperature of the display partition corresponding to the display screen based on the adjusted color temperature of the backlight partition and the adjusted pixels of the display area includes:
and S501, linking the color temperature of the adjusted backlight subarea with the pixels of the adjusted display area to obtain a corresponding linkage color temperature, and adjusting the color temperature of the display subarea corresponding to the display screen based on the linkage color temperature.
Specifically, the liquid crystal display device links the adjusted color temperatures of the light bars of the display partitions with the adjusted pixels, that is, the liquid crystal display device combines the adjusted color temperatures of the light bars of the display partitions with the adjusted pixels to obtain the linkage color temperatures corresponding to the display partitions, and then adjusts the color temperatures of the corresponding display partitions through the linkage color temperatures.
It should be noted that, in this embodiment, the color temperature of each display sub-area (backlight color temperature sub-area) in the backlight sub-area and the color temperature of each display sub-area (screen color temperature sub-area) corresponding to the display region may vary, that is, the color temperature variation in each display sub-area is caused by the color temperature of the backlight color temperature sub-area and the color temperature of the screen color temperature sub-area changing synchronously, wherein the color temperature of the same backlight color temperature sub-area is the same, and the color temperature of the same screen color temperature sub-area is also the same.
Furthermore, the number of the partitions of the screen color temperature partition is greater than or equal to the number of the partitions of the screen color temperature partition, namely, one backlight color temperature partition can be linked with a plurality of screen color temperature partitions.
Further, the color temperatures of different backlight color temperature partitions or the color temperatures in the screen color temperature partition can be adjusted independently, that is, the color temperature of each display partition (backlight color temperature partition) in the backlight partition can be changed, and the color temperature of each display partition (screen color temperature partition) corresponding to the display area can not be changed, that is, the color temperature change in each display partition is caused by the color temperature change of the backlight color temperature partition only. Or, the color temperature of each display subarea (screen color temperature subarea) corresponding to the display area can be changed, and the color temperature of each display subarea (backlight color temperature subarea) in the backlight subarea cannot be changed, namely, the color temperature change in each display subarea is only caused by the color temperature change of the screen color temperature subarea.
In this embodiment, the color temperature of the adjusted backlight partition is linked with the pixels of the adjusted display area to obtain a corresponding linked color temperature, and the color temperature of the display partition corresponding to the display screen is adjusted based on the linked color temperature. Therefore, the color temperature of each display subarea (backlight color temperature subarea) in the backlight subarea and the color temperature of each display subarea (screen color temperature subarea) corresponding to the display area are matched, so that the purpose of dynamically adjusting the color temperature of the image is achieved, and the difference of the color temperature in each display subarea can be controlled.
The invention also provides a color temperature adjusting device. Referring to fig. 5, fig. 5 is a functional block diagram of the color temperature adjustment apparatus of the present invention. The color temperature adjusting apparatus includes:
the analysis module 10 is configured to analyze a current display picture in a display screen to obtain color temperature information of the display screen;
an adjusting module 20, configured to adjust color temperatures of the backlight partitions based on the color temperature information, and adjust pixels of the display area based on the color temperature information;
the adjusting module 20 is further configured to adjust the color temperature of the display partition corresponding to the display screen based on the adjusted color temperature of the backlight partition and the adjusted pixels of the display area.
Further, the adjusting module 20 is further configured to control the current of the backlight partition according to the color temperature information, so as to adjust the brightness of the corresponding backlight partition;
the adjusting module 20 is further configured to adjust color temperatures of the backlight partitions based on the adjusted brightness of the backlight partitions;
the analysis module 10 is further configured to analyze the color temperature information.
Further, the adjusting module 20 includes:
the enhancing unit is used for enhancing the backlight current corresponding to each lamp strip in the backlight partition if the color temperature information is high color temperature; or,
the weakening unit is used for weakening backlight current corresponding to each lamp bar in the backlight subarea if the color temperature information is low color temperature;
and the determining unit is used for determining the input voltage of the RGB pixel points in the display area based on the color temperature information.
Further, the adjusting module 20 is further configured to control the pixel transmittance of the RGB pixel according to the input voltage, so as to adjust the pixel of the display area according to the pixel transmittance.
Further, the adjusting module 20 includes:
and the linkage unit is used for linking the adjusted color temperature of the backlight subarea with the pixels of the adjusted display area to obtain the corresponding linkage color temperature.
Further, the adjusting module 20 adjusts the color temperature of the display partition corresponding to the display screen based on the linkage color temperature;
the determining unit is further configured to analyze a current display picture in a display screen, determine a color temperature value of each image content in the display picture, and determine color temperature information of the display screen according to the color temperature value.
Further, the color temperature adjustment apparatus further includes:
the detection module is used for detecting whether the backlight type corresponding to the backlight partition is a color temperature adjustable type;
and the execution module is used for executing the step of adjusting the color temperature of the backlight subarea based on the color temperature information if the backlight type corresponding to the backlight subarea is detected to be the color temperature adjustable type.
The function implementation of each module in the color temperature adjusting apparatus corresponds to each step in the color temperature adjusting method embodiment, and the function and implementation process thereof are not described in detail herein.
The present invention also provides a computer-readable storage medium having a color temperature adjustment program stored thereon, which when executed by a processor implements the steps of the color temperature adjustment method according to any one of the above embodiments.
The specific embodiment of the computer-readable storage medium of the present invention is substantially the same as the embodiments of the color temperature adjustment method described above, and is not described herein again.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrases "comprising a component of' 8230; \8230;" does not exclude the presence of another like element in a process, method, article, or apparatus that comprises the element.
The above-mentioned serial numbers of the embodiments of the present invention are merely for description and do not represent the merits of the embodiments.
Through the above description of the embodiments, those skilled in the art will clearly understand that the method of the above embodiments can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware, but the former is a better implementation manner in many cases. Based on such understanding, the technical solutions of the present invention may be embodied in the form of software goods, which are stored in a storage medium (e.g., ROM/RAM, magnetic disk, optical disk), and include instructions for enabling a terminal device to perform the methods according to the embodiments of the present invention.
Claims (10)
1. A color temperature adjustment method, comprising:
analyzing a current display picture in a display screen to obtain color temperature information of the display screen;
adjusting color temperatures of the backlight partitions based on the color temperature information, and adjusting pixels of the display area based on the color temperature information, wherein the adjusting the color temperatures of the backlight partitions based on the color temperature information includes: transmitting the color temperature information corresponding to each display subarea to a power supply driver, adjusting each backlight current corresponding to each display subarea in a backlight subarea according to each color temperature information after the power supply driver receives the color temperature information corresponding to each display subarea, and adjusting the brightness of a light bar or a chip corresponding to each display subarea in the backlight subarea according to each backlight current;
and adjusting the color temperature of the display subarea corresponding to the display screen based on the adjusted color temperature of the backlight subarea and the adjusted pixels of the display area.
2. The color temperature adjustment method of claim 1, wherein the step of adjusting the color temperature of the backlight partition based on the color temperature information comprises:
controlling the current of the backlight subarea according to the color temperature information so as to adjust the brightness of the corresponding backlight subarea;
and adjusting the color temperature of the backlight subarea based on the adjusted brightness of the backlight subarea.
3. The color temperature adjusting method of claim 2, wherein the step of controlling the currents of the backlight sections according to the color temperature information comprises:
analyzing the color temperature information;
if the color temperature information is high color temperature, enhancing backlight current corresponding to each light bar in the backlight subarea; or,
and if the color temperature information is low color temperature, weakening the backlight current corresponding to each lamp strip in the backlight subarea.
4. The color temperature adjustment method of claim 1, wherein the adjusting pixels of the display area based on the color temperature information comprises:
determining input voltages of RGB pixel points in the display area based on the color temperature information;
and controlling the pixel transmittance of the RGB pixel points according to the input voltage so as to adjust the pixels of the display area according to the pixel transmittance.
5. The color temperature adjustment method of claim 1, wherein the step of adjusting the color temperature of the display section corresponding to the display screen based on the adjusted color temperature of the backlight section and the adjusted pixels of the display area comprises:
and linking the color temperature of the adjusted backlight subarea with the pixels of the adjusted display area to obtain a corresponding linkage color temperature, and adjusting the color temperature of the display subarea corresponding to the display screen based on the linkage color temperature.
6. The color temperature adjustment method of claim 1, wherein the step of analyzing a current display picture in a display screen to obtain the color temperature information of the display screen comprises:
analyzing a current display picture in a display screen, determining a color temperature value of each image content in the display picture, and determining color temperature information of the display screen according to the color temperature value.
7. The color temperature adjustment method according to any one of claims 1 to 6, wherein after the step of analyzing the current display picture in the display screen to obtain the color temperature information of the display screen, the method further comprises:
detecting whether the backlight type corresponding to the backlight partition is a color temperature adjustable type;
and if the backlight type corresponding to the backlight partition is detected to be the color temperature adjustable type, executing the step of adjusting the color temperature of the backlight partition based on the color temperature information.
8. A color temperature adjustment apparatus, characterized in that the color temperature adjustment apparatus comprises:
the analysis module is used for analyzing a current display picture in a display screen to obtain color temperature information of the display screen;
an adjusting module, configured to adjust color temperatures of the backlight partitions based on the color temperature information and adjust pixels of the display area based on the color temperature information, wherein the adjusting the color temperatures of the backlight partitions based on the color temperature information includes: transmitting the color temperature information corresponding to each display subarea to a power supply driver, adjusting each backlight current corresponding to each display subarea in a backlight subarea according to each color temperature information after the power supply driver receives the color temperature information corresponding to each display subarea, and adjusting the brightness of a light bar or a chip corresponding to each display subarea in the backlight subarea according to each backlight current;
the adjusting module is further used for adjusting the color temperature of the display subarea corresponding to the display screen based on the adjusted color temperature of the backlight subarea and the adjusted pixels of the display area.
9. A terminal device, characterized in that the terminal device comprises a memory, a processor and a color temperature adjustment program stored on the memory and running on the processor, which when executed by the processor implements the steps of the color temperature adjustment method according to any one of claims 1 to 7.
10. A computer-readable storage medium, having a color temperature adjustment program stored thereon, which when executed by a processor implements the steps of the color temperature adjustment method of any one of claims 1 to 7.
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| FI107844B (en) * | 1997-11-07 | 2001-10-15 | Nokia Display Products Oy | Method for Adjusting Color Temperature in Backlit LCD and Backlit LCD |
| TWI269252B (en) * | 2005-06-14 | 2006-12-21 | Benq Corp | Display apparatuses and color temperature adjustment methods thereof |
| CN100586197C (en) * | 2006-05-31 | 2010-01-27 | 深圳Tcl工业研究院有限公司 | Color temperature dynamic regulation method |
| KR20080058859A (en) * | 2006-12-22 | 2008-06-26 | 삼성전자주식회사 | Display apparatus and adjusting color temperature method thereof |
| JP4837009B2 (en) * | 2008-09-12 | 2011-12-14 | ミツミ電機株式会社 | Liquid crystal display |
| US8884994B2 (en) * | 2011-05-13 | 2014-11-11 | Samsung Display Co., Ltd. | Method and apparatus for blending display modes |
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| CN105187811B (en) * | 2015-09-18 | 2017-07-18 | 广东威创视讯科技股份有限公司 | The Automatic adjustment method and device of a kind of LCD screen white balance |
| CN105355173A (en) * | 2015-12-10 | 2016-02-24 | 武汉华星光电技术有限公司 | LED backlight color temperature adjustment circuit and display device therewith |
| US20190237027A1 (en) * | 2016-05-04 | 2019-08-01 | Shenzhen China Star Optoelectronics Technology Co., Ltd | Color temperature adjustment device and mthod of liquid crystal panel and liquid crystal panel |
| CN105788537A (en) * | 2016-05-04 | 2016-07-20 | 深圳市华星光电技术有限公司 | Liquid crystal panel color temperature adjusting device and method and liquid crystal panel |
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