CN110197641A - Panel driving voltage adjusting method, display equipment and the device with store function - Google Patents
Panel driving voltage adjusting method, display equipment and the device with store function Download PDFInfo
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- CN110197641A CN110197641A CN201910429357.4A CN201910429357A CN110197641A CN 110197641 A CN110197641 A CN 110197641A CN 201910429357 A CN201910429357 A CN 201910429357A CN 110197641 A CN110197641 A CN 110197641A
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/22—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources
- G09G3/30—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels
- G09G3/32—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED]
- G09G3/3208—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED]
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
- G09G3/36—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using liquid crystals
- G09G3/3611—Control of matrices with row and column drivers
- G09G3/3696—Generation of voltages supplied to electrode drivers
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- Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
Abstract
This application discloses a kind of panel driving voltage adjusting method, display equipment and with the device of store function.The panel driving voltage adjusting method includes: to obtain picture to be shown；The picture is analyzed, the brightness value of the picture is obtained；The driving voltage of display panel is adjusted according to the brightness value, and adjusts the control signal of power management integrated circuit；The picture is shown with the driving voltage of adjustment.By the above-mentioned means, the application can reduce the power consumption of display driving integrated circuit, economize on resources.
Description
Technical field
This application involves display fields, more particularly to a kind of panel driving voltage adjusting method, display equipment and have
The device of store function.
Background technique
In OLED drive, driving voltage of the ELVSS/ELVDD as OLED device both ends has highly important work
With；Two-way driving voltage is generally provided by the PMIC being placed on FPC or mainboard at present；And DDIC can by one section of output
The voltage is adjusted with the pulse adjusted by software.
Two driving voltage ELVSS/ELVDD when OLED drives at present are usually a fixed voltage, and in reality
In, the picture for display is not constant brightness.Current DDIC is also simply by manually adjusting luminance bar
When dynamically adjust ELVSS output voltage, and be not adjusted simultaneously not according to the brightness of real screen light and shade, this is to a certain degree
On cause the increase of DDIC power consumption.
Summary of the invention
The application is mainly solving the technical problems that providing a kind of panel driving voltage adjusting method, display equipment and having
The device of store function can reduce the power consumption of display driving integrated circuit, economize on resources.
In order to solve the above technical problems, the technical solution that the application uses is: providing a kind of panel driving voltage tune
Adjusting method, comprising: obtain picture to be shown；The picture is analyzed, the brightness value of the picture is obtained；According to described
Brightness value adjusts the driving voltage of display panel, and adjusts the control signal of power management integrated circuit；With the drive of adjustment
Dynamic voltage shows the picture.
Wherein, the brightness value of the picture is the mean value of the brightness of the picture.
Wherein, the brightness value for obtaining the picture, comprising: convert grayscale format for the picture；According to described
The gray value of the picture of grayscale format calculates the mean value of the brightness of the picture.
Wherein, before the mean value for the brightness that the gray value according to the picture calculates the picture, comprising: will be described
The picture of grayscale format is divided into multiple regions, calculates separately out the gray value in each region；It is obtained according to the gray value in each region
Take the gray scale integrated distribution section of the picture of the grayscale format；The picture is obtained according to gray scale integrated distribution section
The mean value of brightness.
Wherein, the driving voltage that display unit is adjusted according to the brightness value, comprising: concentrated and divided according to the gray scale
Cloth section is mapped with the driving voltage, is obtained and the matched driving voltage in gray scale integrated distribution section.
Wherein, the gray value for calculating separately out each region, comprising: the gray value in each region is sampled.
Wherein, the driving voltage that display panel is adjusted according to the brightness value, comprising: adjusted according to the brightness value
The driving voltage of display unit corresponding with the display area of the picture in display panel.
Wherein, the method further includes: call and the matched gamma setup parameter of driving voltage of the adjustment.
In order to solve the above technical problems, another technical solution that the application uses is: providing a kind of display equipment, wrap
Include: processor, telecommunication circuit and memory, the processor couple the telecommunication circuit and the memory, the memory
In be stored with program instruction, the processor executes described program instruction, passes through the telecommunication circuit and realizes side as described above
Method.
In order to solve the above technical problems, another technical solution that the application uses is: providing a kind of with store function
Device, be stored with program instruction, panel driving voltage adjustment as described above is realized in described program instruction for being performed
Method.
The beneficial effect of the application is: being in contrast to the prior art, the application is according to the brightness of picture to be shown
The driving voltage of value adjustment display panel, and the control signal of power management integrated circuit is adjusted, it can be drawn according to actual displayed
It is adjusted in face of display panel driving voltage, to reduce the power consumption of display driving integrated circuit, economizes on resources.
Detailed description of the invention
In order to more clearly explain the technical solutions in the embodiments of the present application, make required in being described below to embodiment
Attached drawing is briefly described, it should be apparent that, the drawings in the following description are only some examples of the present application, for
For those of ordinary skill in the art, without creative efforts, it can also be obtained according to these attached drawings other
Attached drawing.Wherein:
Fig. 1 is the flow diagram of the first embodiment of panel driving voltage adjusting method provided by the present application；
Fig. 2 is the flow diagram of the second embodiment of panel driving voltage adjusting method provided by the present application；
Fig. 3 is that the picture of grayscale format is divided into multiple regions in panel driving voltage adjusting method provided by the present application
Schematic diagram；
Fig. 4 is the flow diagram of the 3rd embodiment of panel driving voltage adjusting method provided by the present application；
Fig. 5 is that calling is matched with the driving voltage of the adjustment in panel driving voltage adjusting method provided by the present application
The schematic diagram of gamma setup parameter；
Fig. 6 is the structural schematic diagram of an embodiment of display equipment provided by the present application；
Fig. 7 is the structural schematic diagram of an embodiment of the device provided by the present application with store function.
Specific embodiment
Below in conjunction with the attached drawing in the embodiment of the present application, technical solutions in the embodiments of the present application carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of embodiments of the present application, instead of all the embodiments.It is based on
Embodiment in the application, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment belongs to the range of the application protection.
Referenced herein " embodiment " is it is meant that a particular feature, structure, or characteristic described can wrap in conjunction with the embodiments
It is contained at least one embodiment of the application.Each position in the description occur the phrase might not each mean it is identical
Embodiment, nor the independent or alternative embodiment with other embodiments mutual exclusion.Those skilled in the art explicitly and
Implicitly understand, embodiment described herein can be combined with other embodiments.
Referring to Fig. 1, Fig. 1 is the process signal of the first embodiment of panel driving voltage adjusting method provided by the present application
Figure.Panel driving voltage adjusting method provided by the present application includes:
S101: picture to be shown is obtained.
In a specific implement scene, application end will need the picture shown on aobvious panel to input DDIC
RAM (the random access of (display driver integrated circuit, display driving integrated circuit)
Memory, random access memory) in.
In other implement scenes, it may be necessary to play video or cardon on a display panel, then application end will be current
Next frame picture to be shown is input in the RAM of DDIC in the video or cardon of broadcasting.
In other implement scenes, it can also be that picture to be shown is successively disposably input to by application end in order
In RAM.After getting these pictures, DDIC successively handles these pictures in sequence.
S102: analyzing the picture, obtains the brightness value of the picture.
In a specific implement scene, the DDIC of display panel analyzes the picture got, obtains the figure
The brightness value of piece.In this implement scene, due to the shading value of picture distinguish under normal circumstances not be it is very big, for example, video or
All the elements obtain under same illumination condition in person's photo, therefore the luminance mean value of the available picture, with the brightness
Brightness value of the mean value as the picture.
In other implement scenes, the picture can be converted to grayscale format, in the picture of grayscale format, color is not present
Coloured silk, gray value is directly related with the brightness value of original picture, therefore can obtain the figure according to the gray value of the picture of grayscale format
The brightness value of piece.For example, the picture average gray can be found out, the brightness value of picture is obtained according to average gray.
In other implement scenes, the gray value of the picture of grayscale format can also be sampled, can be and adopt at random
Sample is sampled according to preset rule, obtains the grey value profile section of the picture of grayscale format, according to preset regular (example
Such as, the distributed area where 50% or more gray value), it obtains meeting the grey value profile subinterval for presetting rule, according to this
Subinterval obtains corresponding picture luminance value section.
S103: the driving voltage of display panel is adjusted according to the brightness value, and adjusts the control of power management integrated circuit
Signal processed.
In a specific implement scene, the drive of corresponding display panel is obtained according to brightness value in step s 102
Dynamic voltage value, the driving voltage of display panel is adjusted to the voltage value, what is adjusted in this implement scene is the electricity of ELVSS
Pressure, can also adjust ELVDD voltage in other implement scenes.In this implement scene, it can be found by way of tabling look-up
Driving voltage value corresponding with brightness value.
While adjusting the driving voltage of display panel, PMIC (power management integrated is adjusted
Circuit, power management integrated circuit) control signal, which is used to ELVSS propose drive volume, controls ELVSS's
Voltage value.The voltage value that the control signal of adjustment PMIC can effectively control ELVSS is stable at the driving voltage value of acquisition.
In this implement scene, the drive of display unit corresponding with the picture display area in display panel can be only adjusted
Dynamic voltage, for example, the picture is only shown and the left area of display panel, the then only driving of the display unit of adjustment left area
Voltage.
In this implement scene, display unit can be OLED display unit or liquid crystal display.
In other implement scenes, it is also possible to adjust the driving voltage of whole display units of entire display panel.
S104: the picture is shown with the driving voltage being adjusted.
In a specific implement scene, after the adjustment of step S103, the driving voltage of display panel is adjusted
Whole to suitable voltage value, since the voltage value of driving voltage adjusted is the luminance acquisition according to the picture, simultaneously
It will not influence the display effect of the picture, and the power consumption of DDIC can be reduced accordingly, be economized on resources.
As can be seen from the above description, the present embodiment is by accordingly adjusting driving voltage according to the brightness value of picture to be shown
Value, can reduce the power consumption of DDIC, economize on resources in the case where not influencing the display effect of picture.
Referring to Fig. 2, Fig. 2 is the process signal of the second embodiment of panel driving voltage adjusting method provided by the present application
Figure.Panel driving voltage adjusting method provided by the present application includes:
S201: picture to be shown is obtained.
In a specific implement scene, the first of this step and panel driving voltage adjusting method provided by the present application
Step S101 in embodiment is almost the same, is no longer repeated herein.
S202: grayscale format is converted by the picture.
In a specific implement scene, the picture that DDIC will acquire is converted into grayscale format.
S203: the picture of the grayscale format is divided into multiple regions, calculates separately out the gray value in each region.
In a specific implement scene, Fig. 3 is please referred to, Fig. 3 is panel driving voltage tune provided by the present application
The picture of grayscale format is divided into the schematic diagram of multiple regions in adjusting method.
As shown in figure 3, picture is divided into Zone (1) several regions-Zone (n).It is even partition in this implement scene
For several regions, can also be in other implement scenes according to other rule segmentations, such as according to color segmentation region.
The gray value for calculating each region obtains the gray value in each region in this implement scene by the way of sampling,
It can be stochastical sampling either to sample according to default rule.In other implement scenes, the area each region Zhong Ge can also be obtained
The gray value of each pixel in domain, finds out the average value of the gray scale in the region, using the average value as the gray value in the region.
S204: the gray scale integrated distribution section of the picture of the grayscale format is obtained according to the gray value in each region.
In a specific implement scene, which is obtained according to the gray value in each region obtained in step S203
The gray scale integrated distribution section of formula picture.For example, obtaining the distribution in the gray value in each region where 50% or more gray value
Section.
In other implement scenes, the gray scale of distributed area or 70% where whole gray values or more can also be
Distributed area where being worth.
S205: being mapped according to gray scale integrated distribution section and the driving voltage, is obtained and the gray scale collection
The middle matched driving voltage of distributed area.
In a specific implement scene, according to the gray scale integrated distribution section obtained in step S204, with driving electricity
Pressure is mapped, and is obtained and the matched driving voltage in gray scale integrated distribution section.For example, gray scale integrated distribution section is A-B,
The driving voltage obtained after then mapping is C, then setting the driving voltage obtained after C, or mapping for driving voltage is C-D,
The arbitrary value or median then set driving voltage in C-D.
As can be seen from the above description, after the present embodiment is by converting grayscale format for picture, by the picture of grayscale format
Several regions are divided into, the gray value in each region is calculated separately out, the picture of grayscale format is obtained according to the gray value in each region
Gray scale integrated distribution section, mapped according to gray scale integrated distribution section with driving voltage, obtain matched driving voltage,
It according to display picture can need that driving voltage is adjusted flexibly, under the premise of not influencing image display effect, be effectively reduced
The power consumption of DDIC, to save resource.
Referring to Fig. 4, Fig. 4 is the process signal of the 3rd embodiment of panel driving voltage adjusting method provided by the present application
Figure.Panel driving voltage adjusting method provided by the present application includes:
S401: picture to be shown is obtained.
S402: analyzing the picture, obtains the brightness value of the picture.
S403: the driving voltage of display panel is adjusted according to the brightness value, and adjusts the control of power management integrated circuit
Signal processed.
Step in the first embodiment of step S401-S403 and panel driving voltage adjusting method provided by the present application
S101-S103 is almost the same, is no longer repeated herein.
S404: the matched gamma setup parameter of driving voltage with the adjustment is called.
In a specific implement scene, after getting the driving voltage of adjustment in step S403, according to the driving
The gamma setup parameter of voltage matches.Specifically, referring to Fig. 5, Fig. 5 is panel driving voltage adjusting method provided by the present application
The schematic diagram of middle calling and the matched gamma setup parameter of driving voltage of the adjustment.
Gamma is derived from the response curve of CRT (display/television set), the i.e. non-linear relation of its brightness and driving voltage,
Gamma setup parameter (GAMMA SETTING) is used to indicate the relationship between the current brightness of display panel and voltage.According to Fig. 5
Shown in mapping relations, find matched gamma setup parameter.Call the gamma setup parameter that can guarantee that image will not be because of
There is the case where GAMMA drift in the adjustment of driving voltage.
S405: the picture is shown with the driving voltage of adjustment.
In a specific implement scene, the first of this step and panel driving voltage adjusting method provided by the present application
Step S104 in embodiment is almost the same, is no longer repeated herein.
As can be seen from the above description, the present embodiment is being obtained with after the matched driving voltage of picture luminance, is called and the drive
The gamma setup parameter of dynamic voltage matches guarantees that image the case where GAMMA drift will not occur because of the adjustment of driving voltage.
Referring to Fig. 6, Fig. 6 is the structural schematic diagram of an embodiment of display equipment provided by the present application.Show equipment 10
It include: processor 11, memory 12 and display circuit 13.Display circuit 13 is for showing picture.Memory 12 is for storing journey
Sequence instruction, processor 11 is for the program instruction in run memory 12, to realize panel described in any of the above-described a embodiment
Driving voltage method of adjustment.In an implement scene, above-mentioned memory 12 includes non-volatile memory portion, for storing
State program instruction.Processor 11 controls the panel driving voltage adjusting method in any one above-described embodiment of the realization of memory 12.
Processor 11 can also be known as CPU (Central Processing Unit, central processing unit).Processor 11
It may be a kind of IC chip, the processing capacity with signal.Processor 11 can also be general processor, digital signal
Processor (DSP), specific integrated circuit (ASIC), ready-made programmable gate array (FPGA) or other programmable logic device,
Discrete gate or transistor logic, discrete hardware components.General processor can be microprocessor or the processor
It can be any conventional processor etc..In addition, processor 11 can be realized by multiple at circuit chip jointly.
In the present embodiment, the processor 11 of display equipment 10 obtains picture to be shown, and analyzes the picture, obtains
Take the brightness value of picture.Processing 11 adjusts the driving voltage of display circuit 13 according to brightness value, and adjusts the electricity of display circuit 13
The control signal of source control integrated circuit.Control display circuit 13 shows picture with the driving voltage being adjusted.
As can be seen from the above description, the display equipment in the present embodiment is accordingly adjusted according to the brightness value of picture to be shown
Driving voltage value can reduce the power consumption of DDIC, economize on resources in the case where not influencing the display effect of picture.
Referring to Fig. 7, Fig. 7 is the structural schematic diagram of an embodiment of the device provided by the present application with store function.
Be stored at least one program instruction 21 in device 20 with store function, program instruction 21 for execute as shown in Figure 1, Figure 2 and
Panel driving voltage adjusting method shown in Fig. 4.In one embodiment, the device 20 with store function can be in terminal
Storage chip, hard disk either other read-write storages such as mobile hard disk or flash disk, CD tool, can also be service
Device etc..
As can be seen from the above description, the program instruction stored in the device with store function in the present embodiment can be used
It, can be the case where not influencing the display effect of picture in accordingly adjusting driving voltage value according to the brightness value of picture to be shown
Under, the power consumption of DDIC is reduced, is economized on resources.
It is different from the prior art, the application accordingly adjusts driving voltage value according to the brightness value of picture to be shown, can be with
In the case where not influencing the display effect of picture, the power consumption of DDIC is reduced, is economized on resources, and matched obtaining with picture luminance
Driving voltage after, call with the matched gamma setup parameter of the driving voltage, guarantee image will not be because of the tune of driving voltage
It is whole the case where GAMMA drift occur.
The foregoing is merely presently filed embodiments, are not intended to limit the scope of the patents of the application, all to utilize this
Equivalent structure or equivalent flow shift made by application specification and accompanying drawing content, it is relevant to be applied directly or indirectly in other
Technical field similarly includes in the scope of patent protection of the application.
Claims (10)
1. a kind of panel driving voltage adjusting method characterized by comprising
Obtain picture to be shown；
The picture is analyzed, the brightness value of the picture is obtained；
The driving voltage of display panel is adjusted according to the brightness value, and adjusts the control signal of power management integrated circuit；
The picture is shown with the driving voltage being adjusted.
2. the method according to claim 1, wherein
The brightness value of the picture is the mean value of the brightness of the picture.
3. the method according to claim 1, wherein the brightness value for obtaining the picture, comprising:
Grayscale format is converted by the picture；
The brightness value of the picture is calculated according to the gray value of the picture of the grayscale format.
4. according to the method described in claim 3, it is characterized in that, described calculate the picture according to the gray value of the picture
Brightness mean value before, comprising:
The picture of the grayscale format is divided into multiple regions, calculates separately out the gray value in each region；
The gray scale integrated distribution section of the picture of the grayscale format is obtained according to the gray value in each region；
The mean value of the brightness of the picture is obtained according to gray scale integrated distribution section.
5. according to the method described in claim 4, it is characterized in that, the driving for adjusting display unit according to the brightness value
Voltage, comprising:
It is mapped, is obtained and gray scale integrated distribution section according to gray scale integrated distribution section and the driving voltage
Matched driving voltage.
6. according to the method described in claim 4, it is characterized in that, the gray value for calculating separately out each region, comprising:
The gray value in each region is sampled.
7. the method according to claim 1, wherein the driving for adjusting display panel according to the brightness value
Voltage, comprising:
The driving voltage of display unit corresponding with the display area of the picture in display panel is adjusted according to the brightness value.
8. the method according to claim 1, wherein the method further includes:
Call the matched gamma setup parameter of driving voltage with the adjustment.
9. a kind of display equipment characterized by comprising processor, memory and display are deposited described in processor coupling
Reservoir and the display, program instruction is stored in the memory, and the processor executes described program instruction, controls institute
It states display and realizes such as the described in any item panel driving voltage adjusting methods of claim 1-8.
10. a kind of device with store function, which is characterized in that be stored with program instruction, described program is instructed for being held
Row is to realize such as the described in any item panel driving voltage adjusting methods of claim 1-8.
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| CN111192556A (en) * | 2019-12-10 | 2020-05-22 | 华为技术有限公司 | Method and device for controlling power supply chip to supply voltage |
| CN111199707A (en) * | 2020-03-04 | 2020-05-26 | Tcl华星光电技术有限公司 | Display device brightness adjusting device and method |
| CN113971922A (en) * | 2020-07-07 | 2022-01-25 | 中强光电股份有限公司 | Device and method for adjusting driving voltage of light emitting element |
| CN114495858A (en) * | 2022-02-09 | 2022-05-13 | Tcl华星光电技术有限公司 | Image display method, device and storage medium |
| CN114968853A (en) * | 2021-02-22 | 2022-08-30 | 荣耀终端有限公司 | Power chip management method and system and electronic equipment |
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