CN106548751B - The display methods and device of display panel - Google Patents
The display methods and device of display panel Download PDFInfo
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- CN106548751B CN106548751B CN201710025564.4A CN201710025564A CN106548751B CN 106548751 B CN106548751 B CN 106548751B CN 201710025564 A CN201710025564 A CN 201710025564A CN 106548751 B CN106548751 B CN 106548751B
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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]
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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
- G09G2320/02—Improving the quality of display appearance
- G09G2320/0271—Adjustment of the gradation levels within the range of the gradation scale, e.g. by redistribution or clipping
- G09G2320/0276—Adjustment of the gradation levels within the range of the gradation scale, e.g. by redistribution or clipping for the purpose of adaptation to the characteristics of a display device, i.e. gamma correction
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- Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
- Electroluminescent Light Sources (AREA)
Abstract
The disclosure is directed to a kind of display methods of display panel and devices, belong to field of display technology.This method comprises: judging whether display panel is in low current driving condition when display panel performs image display, when display panel is in low current driving condition, the driving current of the luminescence unit of the predetermined number of display panel is lower than electric current preset value；When display panel is in low current driving condition, the gamma value of display panel is adjusted, so that gamma value adjusted is less than default gamma value.The disclosure is by adjusting the gamma value of the display panel when display panel is in low current driving condition, so that gamma value adjusted is less than default gamma value, to improve display panel for driving the electric current of luminescence unit.It solves in the related technology when display panel is for driving the electric current of luminescence unit smaller, the lower problem of the consistency for the image that display panel is shown.The higher effect of consistency for the image that display panel is shown is reached.
Description
Technical field
This disclosure relates to field of display technology, the in particular to display methods and device of a kind of display panel.
Background technique
With the development of science and technology, display panel applications are in various electronic equipments, such as mobile phone, TV, plate
Computer and display etc..More and more people get used to obtaining various information by display panel.
Organic Light Emitting Diode (English: Organic Light-Emitting Diode；Referred to as: OLED) display panel packet
The luminescence unit (sub-pixel that the luminescence unit corresponds to OLED display panel) of array arrangement is included, which can
To include electroluminescent (English: electroluminescent；Referred to as: EL) layer and cathode and sun that EL layers of both ends are set
Pole can just make EL layers to cathode and anodal closure and emit beam, and the EL layer in different types of luminescence unit can issue not
With the light of color (such as red, green and blue).
Since the material of the EL layer of different types of luminescence unit has differences, so that defeated to different types of luminescence unit
When entering same current, the brightness for the light that different types of luminescence unit issues is had differences, in display panel for driving hair
When the electric current of light unit is smaller, this species diversity is more obvious, and the consistency for the image that display panel is shown is lower.
Summary of the invention
In order to solve in the related technology when display panel is for driving the electric current of luminescence unit smaller, display panel is shown
Image the lower problem of consistency, the embodiment of the present disclosure provides the display methods and device of a kind of display panel.It is described
Technical solution is as follows:
According to the disclosure in a first aspect, provide a kind of display methods of display panel, this method comprises:
When display panel performs image display, judge whether display panel is in low current driving condition, in display surface
When plate is in low current driving condition, the driving current of the luminescence unit of the predetermined number of display panel is lower than electric current preset value；
When display panel is in low current driving condition, the gamma value of display panel is adjusted, so that gamma adjusted
Value is less than default gamma value.
Optionally, judge whether display panel is in low current driving condition, comprising:
Obtain the brightness of display panel；
When the brightness of display panel is less than predetermined luminance, determine that display panel is in low current driving condition.
Optionally, judge whether display panel is in low current driving condition, further includes:
When the brightness of display panel is not less than predetermined luminance, the grayscale value of the image shown according to display panel judges aobvious
Show whether panel is in low current driving condition.
Optionally, the grayscale value of the image shown according to display panel judges whether display panel is in low current driving shape
State, comprising:
The average gray-scale value of each pixel clusters in the image that display panel is shown is obtained, any pixel cluster includes at least one
Sub-pixel；
It is aobvious less than the pixel clusters and display panel of preset gray scale value to obtain average gray-scale value in the image that display panel is shown
The number ratio of all pixels cluster in the image shown；
When number ratio is greater than default ratio, determine that display panel is in low current driving condition.
Optionally, the grayscale value of the image shown according to display panel judges whether display panel is in low current driving shape
State, comprising:
Obtain the average gray-scale value for the image that display panel is shown；
When average gray-scale value is lower than default average value, determine that display panel is in low current driving condition.
Optionally, the gamma value of display panel is adjusted, so that gamma value adjusted is less than default gamma value, comprising:
Obtain the average gray-scale value for the image that display panel is shown；
According to the corresponding relationship of preset grayscale value and gamma value, target gamma value corresponding to average gray-scale value is determined,
Target gamma value, which is less than, defaults gamma value, and the grayscale value and gamma value of the corresponding relationship record of grayscale value and gamma value are positively correlated,
Any gamma value recorded in corresponding relationship is less than default gamma value；
The gamma value of display panel is adjusted, so that gamma value adjusted is equal to target gamma value.
Optionally, the gamma value of display panel is adjusted to the numerical value lower than default gamma value, comprising:
Obtain the average gray-scale value of every sub-pixel in the image that display panel is shown；
According to the average gray-scale value of every sub-pixel, the gamma of every sub-pixel in the image that respectively shows display panel
Value is adjusted to the numerical value lower than default gamma value, the average gray-scale value positive of the gamma value of every sub-pixel and every sub-pixel
It closes.
Optionally, this method further include:
When display panel is not at low current driving condition, the gamma value of display panel is made to default gamma value.
Optionally, display panel is Organic Light Emitting Diode OLED display panel.
Optionally, default gamma value is 2.2, and gamma value adjusted is more than or equal to 1.8 less than 2.2.
According to the second aspect of the disclosure, a kind of display device of display panel, the display device of the display panel are provided
Include:
Judgment module is configured as judging whether display panel is in low current when display panel performs image display
Driving condition, when display panel is in low current driving condition, the driving electricity of the luminescence unit of the predetermined number of display panel
Stream is lower than electric current preset value；
Module is adjusted, is configured as adjusting the gamma value of display panel when display panel is in low current driving condition,
So that gamma value adjusted is less than default gamma value.
Optionally, judgment module, comprising:
Luminance acquisition submodule is configured as obtaining the brightness of display panel；
Low current determines submodule, is configured as determining display panel when the brightness of display panel is less than predetermined luminance
In low current driving condition.
Optionally, judgment module, further includes:
Gray scale determines submodule, is configured as when the brightness of display panel is not less than predetermined luminance, according to display panel
The grayscale value of the image of display judges whether display panel is in low current driving condition.
Optionally, gray scale determines submodule, is configured as:
The average gray-scale value of each pixel clusters in the image that display panel is shown is obtained, any pixel cluster includes at least one
Sub-pixel；
It is aobvious less than the pixel clusters and display panel of preset gray scale value to obtain average gray-scale value in the image that display panel is shown
The number ratio of all pixels cluster in the image shown；
When number ratio is greater than default ratio, determine that display panel is in low current driving condition.
Optionally, gray scale determines submodule, is configured as:
Obtain the average gray-scale value for the image that display panel is shown；
When average gray-scale value is lower than default average value, determine that display panel is in low current driving condition.
Optionally, module is adjusted, is configured as:
Obtain the average gray-scale value for the image that display panel is shown；
According to the corresponding relationship of preset grayscale value and gamma value, target gamma value corresponding to average gray-scale value is determined,
Target gamma value, which is less than, defaults gamma value, and the grayscale value and gamma value of the corresponding relationship record of grayscale value and gamma value are positively correlated,
Any gamma value recorded in corresponding relationship is less than default gamma value；
The gamma value of display panel is adjusted, so that gamma value adjusted is equal to target gamma value.
Optionally, module is adjusted, is configured as:
Obtain the average gray-scale value of every sub-pixel in the image that display panel is shown；
According to the average gray-scale value of every sub-pixel, the gamma of every sub-pixel in the image that respectively shows display panel
Value is adjusted to the numerical value lower than default gamma value, the average gray-scale value positive of the gamma value of every sub-pixel and every sub-pixel
It closes.
Optionally, the display device of display panel further include:
Default adjustment module, is configured as making the gal of display panel when display panel is not at low current driving condition
Value of gamma is default gamma value.
Optionally, display panel is organic LED display panel.
Optionally, default gamma value is 2.2, and gamma value adjusted is more than or equal to 1.8 less than 2.2.
According to the third aspect of the disclosure, a kind of display device of display panel is provided, comprising:
Processor；
The memory of executable instruction for storage processor；
Wherein, processor is configured as:
When display panel performs image display, judge whether display panel is in low current driving condition, in display surface
When plate is in low current driving condition, the driving current of the luminescence unit of the predetermined number of display panel is lower than electric current preset value；
When display panel is in low current driving condition, the gamma value of display panel is adjusted, so that gamma adjusted
Value is less than default gamma value.
The technical solution that the embodiment of the present disclosure provides can include the following benefits:
By adjusting the gamma value of the display panel when display panel is in low current driving condition, so that after adjustment
Gamma value be less than default gamma value, to improve display panel for driving the electric current of luminescence unit.It solves in the related technology
When display panel is for driving the electric current of luminescence unit smaller, the lower problem of the consistency for the image that display panel is shown.
The higher effect of consistency for the image that display panel is shown is reached.
It should be understood that above general description and following detailed description be only it is exemplary and explanatory, not
The disclosure can be limited.
Detailed description of the invention
The drawings herein are incorporated into the specification and forms part of this specification, and shows the implementation for meeting the disclosure
Example, and together with specification for explaining the principles of this disclosure.
Fig. 1 is a kind of flow chart of acquisition parameters setting method shown according to an exemplary embodiment；
Fig. 2-1 is the flow chart of another acquisition parameters setting method shown according to an exemplary embodiment；
Fig. 2-2 is a kind of schematic diagram for adjusting brightness in Fig. 2-1 illustrated embodiment；
Fig. 2-3 is a kind of process for judging display panel and whether being in low current driving condition in Fig. 2-1 illustrated embodiment
Figure；
Fig. 2-4 is that another kind judges whether display panel is in the stream of low current driving condition in Fig. 2-1 illustrated embodiment
Cheng Tu；
The graph of relation of brightness and electric current when Fig. 2-5 is different gamma values in Fig. 2-1 illustrated embodiment；
Fig. 2-6 is a kind of flow chart for the gamma value for adjusting display panel in Fig. 2-1 illustrated embodiment；
Fig. 2-7 is the flow chart of the gamma value of another adjustment display panel in Fig. 2-1 illustrated embodiment；
Fig. 3-1 is a kind of block diagram of the display device of display panel shown according to an exemplary embodiment；
Fig. 3-2 is a kind of block diagram of judgment module in Fig. 3-1 illustrated embodiment；
Fig. 3-3 is the block diagram of another judgment module in Fig. 3-1 illustrated embodiment；
Fig. 3-4 is the block diagram of the display device of another display panel shown according to an exemplary embodiment；
Fig. 4 is a kind of block diagram of the display device of display panel shown according to an exemplary embodiment.
Through the above attached drawings, it has been shown that the specific embodiment of the disclosure will be hereinafter described in more detail.These attached drawings
It is not intended to limit the scope of this disclosure concept by any means with verbal description, but is by referring to specific embodiments
Those skilled in the art illustrate the concept of the disclosure.
Specific embodiment
Example embodiments are described in detail here, and the example is illustrated in the accompanying drawings.Following description is related to
When attached drawing, unless otherwise indicated, the same numbers in different drawings indicate the same or similar elements.Following exemplary embodiment
Described in embodiment do not represent all implementations consistent with this disclosure.On the contrary, they be only with it is such as appended
The example of the consistent device and method of some aspects be described in detail in claims, the disclosure.
The display methods of display panel provided by each embodiment of the disclosure can be applied in display panel, and the display
Panel can be applied in various terminals having a display function, such as mobile phone, laptop computer, desktop computer, plate electricity
Brain, smartwatch and Intelligent bracelet etc..
Fig. 1 is a kind of flow chart of the display methods of display panel shown according to an exemplary embodiment.The display surface
The display methods of plate may include the following steps:
In a step 101, when display panel performs image display, judge whether display panel is in low current driving shape
State, when display panel is in low current driving condition, the driving current of the luminescence unit of the predetermined number of display panel is lower than
Electric current preset value.
In a step 102, when display panel is in low current driving condition, the gamma value of display panel is adjusted, so that
Gamma value adjusted is less than default gamma value.
In conclusion the display methods for the display panel that the embodiment of the present disclosure provides, by being in low electricity in display panel
When flowing driving condition, the gamma value of the display panel is adjusted, so that gamma value adjusted is less than default gamma value, it is aobvious to improve
Show panel for driving the electric current of luminescence unit.It solves and is used to drive the electric current of luminescence unit in display panel in the related technology
When smaller, the lower problem of the consistency for the image that display panel is shown.The consistency for the image that display panel is shown is reached
Higher effect.
Fig. 2-1 is the flow chart of the display methods of another display panel shown according to an exemplary embodiment.This is aobvious
The display methods for showing panel may include the following steps:
In step 201, the brightness of display panel is obtained.
Using the embodiment of the present disclosure provide display panel display methods when, display panel available first it is bright
Degree, the brightness of the display panel refers to the overall brightness of display panel, and the overall brightness can be the current bright of display panel
The percentage of angle value and the maximum brightness value of display panel, the unit of brightness value can be every square metre of candelas (cd/m2).
The display methods for the display panel that the embodiment of the present disclosure provides can be a kind of function of display panel, the function
Opening and closing can be controlled by user and (directly open or close the function by user), or be controlled automatically according to predetermined condition
It makes (consistency of such as display panel is opened when poor, is closed when the consistency of display panel is higher).
The brightness for the image that display panel is shown can be by the overall brightness of display panel and the grayscale value of each sub-pixel
To determine.It illustratively, is the interface schematic diagram that brightness is adjusted in mobile phone, at the interface, user can be with as shown in Fig. 2-2
The brightness of the display panel of mobile phone is adjusted by dragging regulation button 21, which can be the brightness obtained in step 201.
Display panel in the embodiment of the present disclosure can be OLED display panel, and OLED display panel has self-luminous, wide
Visual angle, the advantages that contrast is high, power consumption is lower and reaction speed is high.
In addition, the executing subject of the embodiment of the present disclosure can be control assembly, which may include at least one
Processor.The control assembly can be the control assembly in terminal.
In step 202, judge whether the brightness of display panel is less than predetermined luminance.It is less than in the brightness of display panel pre-
If when brightness, executing step 203；When the brightness of display panel is not less than predetermined luminance, step 204 is executed.
Control assembly may determine that whether the brightness of display panel is less than predetermined luminance, and be made further according to judging result
Operation.The predetermined luminance can be the percentage of the maximum brightness value of a preset brightness value and display panel.
, can be according in different display panels in addition, predetermined luminance is different according to the difference of display panel, display surface
Predetermined luminance is arranged in relationship between the brightness of plate and the electric current for driving luminescence unit.
In step 203, determine that display panel is in low current driving condition.Execute step 205.
The electric current of the luminescence unit of the brightness and driving display panel of display panel is directly proportional, and in display panel
Brightness it is lower when, drive the electric current of the luminescence unit of display panel smaller, the consistency of display panel is poor, thus control group
Part can determine that display panel is in low current driving condition when the brightness of display panel is less than predetermined luminance.
When driving the electric current of the luminescence unit of display panel smaller, when the driving current of different luminescence units has differences,
Difference percentage shared in the driving current of each luminescence unit can be bigger, therefore the difference is for luminescence unit
Brightness influence also can be bigger, causes the consistency of display panel lower.Illustratively, the driving current of luminescence unit A is 1 milli
Peace, the driving current of luminescence unit B are 2 milliamperes, and gap is 1 milliampere, this 1 milliampere of gap is equivalent to the driving of luminescence unit A
The 100% of electric current is equivalent to the 50% of the driving current of luminescence unit B, this to the two luminescence units issue light it is bright
The influence of degree is huge, and when the driving current of luminescence unit A is 10 milliamperes, the driving current of luminescence unit B is 11 milliamperes
When, gap is still 1 milliampere, but this 1 milliampere is equivalent to the 10% of luminescence unit A driving current, is equivalent to the driving of luminescence unit B
The influence of 9% or so of electric current, the brightness for the light which issues the two luminescence units is smaller.
In step 204, the grayscale value of the image shown according to display panel judges whether display panel is in low current
Driving condition.When display panel is in low current driving condition, step 205 is executed；Low current is not in display panel to drive
When dynamic state, step 206 is executed.
Display panel brightness be not less than predetermined luminance when, display panel whether be in low current driving condition just with show
Show that the grayscale value of the image of Display panel has association, the ash for the image that control assembly can further be shown according to display panel
Rank value judges whether display panel is in low current driving condition.
Wherein, the image that display panel is shown can be the image that display panel present frame is shown, the present embodiment can root
Determine whether display panel is in low current driving condition according to the image that each frame of display panel is shown, or according to display
Panel determines whether display panel is in low current driving condition every image that default frame is shown.
Step 204 may include following two embodiment.
As Figure 2-3, the first embodiment includes following 5 sub-steps:
Sub-step 2041, the average gray-scale value for obtaining each pixel clusters in the image that display panel is shown, any pixel cluster
Including at least one sub-pixel.Execute sub-step 2042.
The average gray-scale value of each pixel clusters, any picture in the image that the available display panel of control assembly is shown
Plain cluster may include at least one sub-pixel, i.e., each pixel clusters may include a sub-pixel, a pixel or multiple pixels.
And the average gray-scale value of each pixel clusters can be the arithmetic mean of instantaneous value of the grayscale value of all sub-pixels, geometric average in pixel clusters
Value, mean square, harmonic-mean or weighted average etc..
Display panel can be multiple pixels by array arrangement to show image, and each pixel shows a color
Block, and each pixel is that (each pixel may include three sub-pixels of RGB, or including RGB by multiple sub-pixels
White four sub-pixels) composition, each sub-pixel can have a grayscale value, which indicates the brightness of each sub-pixel
Rank, grayscale value is lower, and gray scale is lower.Illustratively, when grayscale has 256 grades, the range of grayscale value is just 0-255,0
To be most dark, 255 be most bright.
Sub-step 2042, obtain average gray-scale value in the image that show of display panel be less than preset gray scale value pixel clusters and
The number ratio of all pixels cluster in the image that display panel is shown.Execute sub-step 2043.
It is considered that average gray-scale value is less than in the pixel clusters of preset gray scale value, the driving current of luminescence unit is less than electric current
Preset value, in the image that the available display panel of control assembly is shown average gray-scale value be less than the pixel clusters of preset gray scale value with
The number ratio of all pixels cluster in the image that display panel is shown, it is small which is able to reflect out driving current in display panel
In the ratio of the luminescence unit of electric current preset value.
Sub-step 2043 judges the number than whether being greater than default ratio.When the number ratio is greater than default ratio, execute
Sub-step 2044 executes sub-step 2045 when the number ratio is not more than default ratio.
Control assembly may determine that whether number ratio is greater than default ratio, and different steps is executed according to structure is judged
Suddenly.
Sub-step 2044 determines that display panel is in low current driving condition.
In the image that display panel is shown, average gray-scale value, which is less than in the pixel clusters and the image of preset gray scale value, to be owned
When the number ratio of pixel clusters is greater than default ratio, it is believed that the driving current of the luminescence unit of the predetermined number of display panel is low
In electric current preset value, control assembly can determine that display panel is in low current driving condition.Wherein, predetermined number and electric current are pre-
If value can be the consistency previously according to the luminescence unit in display panel under the driving of different electric currents to determine.
Sub-step 2045 determines that display panel is not at low current driving condition.
In the image that display panel is shown, average gray-scale value, which is less than in the pixel clusters and the image of preset gray scale value, to be owned
When the number ratio of pixel clusters is not more than default ratio, it is believed that there is no the drives of the luminescence unit of predetermined number in display panel
Streaming current is lower than electric current preset value, and control assembly can determine that display panel is not at low current driving condition.
As in Figure 2-4, second of embodiment includes following 4 sub-steps:
Sub-step 2046 obtains the average gray-scale value for the image that display panel is shown.Execute step 2047.
The average gray-scale value for the image that display panel is shown can be all sub-pixels in the image that display panel is shown
The average value of grayscale value, the average value can be arithmetic mean of instantaneous value, geometrical mean, mean square, the tune of all sub-pixels
With average value or weighted average etc..
Illustratively, with arithmetic mean of instantaneous value, the image that display panel is shown shares 1000 sub-pixels, by this 1000 sons
The grayscale value of pixel is added the average gray-scale value that the image that display panel is shown can be obtained divided by 1000 again.
Sub-step 2047 judges whether average gray-scale value is lower than default average value.It is average lower than default in average gray-scale value
When value, sub-step 2048 is executed；When average gray-scale value is not less than default average value, sub-step 2049 is executed.
Control assembly may determine that whether average gray-scale value is lower than default average value, and be executed according to judging result different
Step.
Sub-step 2048 determines that display panel is in low current driving condition.
When the average value of the grayscale value of all sub-pixels is lower than default average value, it is believed that default of display panel
The driving current of several luminescence units is lower than electric current preset value, and control assembly can determine that display panel is in low current driving shape
State.
Sub-step 2049 determines that display panel is not at low current driving condition.
When the average value of the grayscale value of all sub-pixels is not less than default average value, it is believed that do not deposited in display panel
It is lower than electric current preset value in the driving current of the luminescence unit of predetermined number, it is low that control assembly can determine that display panel is not at
Electric current driving condition.
In step 205, the gamma value of display panel is adjusted, so that gamma value adjusted is less than default gamma value.
When display panel is in low current driving condition, the gamma value of the adjustable display panel of control assembly, so that
Gamma value adjusted is less than default gamma value.
When inputting display signal to display panel, image that display panel show can with show the image recorded in signal
There are certain distortions, can be with Gamma correction (English: Gamma Correction) technology to display surface in order to correct the distortion
The default gamma of plate (English: Gamma) value, the gamma value and display panel show that the brightness of picture is negatively correlated, for according to
Certain function curve promotes the brightness for the picture that display panel is shown, and corrects image with this, shows display panel
The image recorded in the more close display signal of image.As shown in Figure 2-5, be different gamma values when, the grayscale of luminescence unit
The graph of relation of the brightness of value and luminescence unit, wherein horizontal axis indicates grayscale value (may range from 0-255), from left to right
Increase, the longitudinal axis indicates brightness (brightness can be the normalized value of the brightness of display panel), increases from bottom to up, curve q1 is gal
Relation curve when value of gamma is 1.8, the relation curve that curve q2 is gamma value when being 2.0, curve q3 is gamma value when being 2.2
Relation curve drives the brightness of luminescence unit that can become larger after reducing gamma value it can be seen from Fig. 2-5.
Step 205 may include following two embodiment.
As shown in figures 2-6, the first embodiment includes following 3 sub-steps:
Sub-step 2051 obtains the average gray-scale value for the image that display panel is shown.
When adjusting gamma value, the average gray-scale value for the image that the available display panel of control assembly is shown.If control
Component processed obtains average gray-scale value in the sub-step 2046 of step 204, then sub-step can be read directly in this step
The average gray-scale value obtained in 2046, if average gray-scale value has not been obtained in sub-step 2046 in control assembly, in this step
Average gray-scale value can be obtained with reference to the mode in sub-step 2046.
Sub-step 2052 determines corresponding to average gray-scale value according to the corresponding relationship of preset grayscale value and gamma value
Target gamma value.
In the corresponding relationship of preset grayscale value and gamma value, average gray-scale value can be described and the corresponding of gamma value is closed
It is that any gamma value recorded in the corresponding relationship is less than default gamma value, and grayscale value and gamma value are positively correlated.In addition,
In the corresponding relationship, each grayscale value can be corresponding to a gamma value, such as the corresponding gamma value 2.0 of grayscale value 121, grayscale value
131 corresponding gamma values 2.1 are also possible to each grayscale value section corresponding to a gamma value, as grayscale value [121-131] is corresponding
With gamma value 1.9, grayscale value (131-142] correspond to gamma value 2.0.
Optionally, in the corresponding relationship of preset grayscale value and gamma value, the range of gamma value can be to be greater than less than 2.2
Or it is equal to 1.8, therefore, the range of target gamma value can also be less than 2.2 and be greater than or equal to 1.8.Wherein 2.2 can be display surface
The default gamma value of plate.
Sub-step 2053 adjusts the gamma value of display panel, so that gamma value adjusted is equal to target gamma value.
Control assembly can adjust the gamma value of display panel to target gamma value.
As illustrated in figs. 2-7, second of embodiment includes following 2 sub-steps:
Sub-step 2054 obtains the average gray-scale value of every sub-pixel in the image that display panel is shown.
Control assembly can also obtain the average gray-scale value of every sub-pixel in the image that display panel is shown respectively.Display
The image of Display panel may include a variety of sub-pixels, such as red sub-pixel, blue subpixels and green sub-pixels, control group
Part obtain this variety of sub-pixel in every sub-pixel average gray-scale value when, the calculation of the grayscale value of available every sub-pixel
Art average value, geometrical mean, mean square, harmonic-mean or weighted average etc..Illustratively, red of acquisition
The average gray-scale value of pixel can be 121, and the average gray-scale value of red sub-pixel can be 131, the average ash of blue subpixels
Rank value can be 128.
Sub-step 2055, according to the average gray-scale value of every sub-pixel, every kind in the image that respectively shows display panel
The gamma value of sub-pixel is adjusted to the numerical value lower than default gamma value.
Since the average gray-scale value of every sub-pixel may be different, thus control assembly can be according to the flat of every sub-pixel
The gamma value of every sub-pixel in image that display panel is shown is adjusted to the number lower than default gamma value respectively by equal grayscale value
Value.Defaulting gamma value can be 2.2.Wherein, the average gray-scale value of the gamma value of every sub-pixel and every sub-pixel is positively correlated.
In addition, there may also be a corresponding relationship, the corresponding relationships for the average gray-scale value and gamma value of every sub-pixel
Can be with reference to the corresponding relationship of grayscale value and gamma value in sub-step 2052, details are not described herein.
It optionally, can be to determine mesh shown in application drawing 2-6 and Fig. 2-7 when the brightness of display panel is less than predetermined luminance
The mode for marking gamma value, this is because driving the electric current of luminescence unit relatively small, gray value when the brightness of display panel is smaller
For driving the electric current of luminescence unit to be affected, thus it can determine target gamma value according to gray value, it is aobvious to improve
Show the consistency of panel.
Optionally, since the brightness of display panel is relatively high, drive the electric current of luminescence unit it is opposite also can be higher, this
When gray value for driving the influence of the electric current of luminescence unit smaller, thus display panel can be set to one fixed small
In the gamma value of default gamma value, to reduce calculation amount.
After step 205, control assembly can re-execute the steps 201, continue obtain display panel brightness, and after
Continuous controlled the display panel by the method that the embodiment of the present disclosure provides is shown.
Step 206, the gamma value of display panel is made to default gamma value.
When display panel is not at low current driving condition, control assembly can be such that the gamma value of display panel defaults
Gamma value.When the current gamma value of display panel is default gamma value, the gamma value of display panel can not be adjusted,
When the current gamma value of display panel is not default gamma value, the gamma value of display panel can be set to default gamma
Value.
After step 206, control assembly can re-execute the steps 201, continue obtain display panel brightness, and after
Continuous controlled the display panel by the method that the embodiment of the present disclosure provides is shown.
In conclusion the display methods for the display panel that the embodiment of the present disclosure provides, by being in low electricity in display panel
When flowing driving condition, the gamma value of the display panel is adjusted, so that gamma value adjusted is less than default gamma value, it is aobvious to improve
Show panel for driving the electric current of luminescence unit.It solves and is used to drive the electric current of luminescence unit in display panel in the related technology
When smaller, the lower problem of the consistency for the image that display panel is shown.The consistency for the image that display panel is shown is reached
Higher effect.
Following is embodiment of the present disclosure, can be used for executing embodiments of the present disclosure.It is real for disclosure device
Undisclosed details in example is applied, embodiments of the present disclosure is please referred to.
Fig. 3-1 is a kind of block diagram of the display device of display panel shown according to an exemplary embodiment.The display surface
The display device of plate may include:
Judgment module 310 is configured as judging whether display panel is in low electricity when display panel performs image display
Flow driving condition, when display panel is in low current driving condition, the driving of the luminescence unit of the predetermined number of display panel
Electric current is lower than electric current preset value；
Module 320 is adjusted, is configured as adjusting the gamma of display panel when display panel is in low current driving condition
Value, so that gamma value adjusted is less than default gamma value.
In conclusion the display device for the display panel that the embodiment of the present disclosure provides, by being in low electricity in display panel
When flowing driving condition, the gamma value of the display panel is adjusted, so that gamma value adjusted is less than default gamma value, it is aobvious to improve
Show panel for driving the electric current of luminescence unit.It solves and is used to drive the electric current of luminescence unit in display panel in the related technology
When smaller, the lower problem of the consistency for the image that display panel is shown.The consistency for the image that display panel is shown is reached
Higher effect.
Optionally, as shown in figure 3-2, judgment module 310, comprising:
Luminance acquisition submodule 311 is configured as obtaining the brightness of display panel；
Low current determines submodule 312, is configured as determining display surface when the brightness of display panel is less than predetermined luminance
Plate is in low current driving condition.
Optionally, as shown in Fig. 3-3, judgment module 310, further includes:
Gray scale determines submodule 313, is configured as when the brightness of display panel is greater than predetermined luminance, according to display panel
The grayscale value of the image of display judges whether display panel is in low current driving condition.
Optionally, gray scale determines submodule 313, is configured as:
The average gray-scale value of each pixel clusters in the image that display panel is shown is obtained, any pixel cluster includes at least one
Sub-pixel；
It is aobvious less than the pixel clusters and display panel of preset gray scale value to obtain average gray-scale value in the image that display panel is shown
The number ratio of all pixels cluster in the image shown；
When number ratio is greater than default ratio, determine that display panel is in low current driving condition.
Optionally, gray scale determines submodule 313, is configured as:
Obtain the average gray-scale value for the image that display panel is shown；
When average value is lower than default average value, determine that display panel is in low current driving condition.
Optionally, module 320 is adjusted, is configured as:
Obtain the average gray-scale value for the image that display panel is shown；
According to the corresponding relationship of preset grayscale value and gamma value, target gamma value corresponding to average gray-scale value is determined,
Target gamma value, which is less than, defaults gamma value, and the grayscale value and gamma value of the corresponding relationship record of grayscale value and gamma value are positively correlated,
Any gamma value recorded in corresponding relationship is less than default gamma value；
The gamma value of display panel is adjusted, so that gamma value adjusted is equal to target gamma value.
Optionally, module 320 is adjusted, is configured as:
Obtain the average gray-scale value of every sub-pixel in the image that display panel is shown；
According to the average gray-scale value of every sub-pixel, the gamma of every sub-pixel in the image that respectively shows display panel
Value is adjusted to the numerical value lower than default gamma value, the average gray-scale value positive of the gamma value of every sub-pixel and every sub-pixel
It closes.
Optionally, as shown in Figure 3-4, the display device of the display panel further include:
Default adjustment module 330, is configured as making display panel when display panel is not at low current driving condition
Gamma value is default gamma value.
Optionally, display panel is Organic Light Emitting Diode OLED display panel.
Optionally, default gamma value is 2.2, and gamma value adjusted is more than or equal to 1.8 less than 2.2.
In conclusion the display device for the display panel that the embodiment of the present disclosure provides, by being in low electricity in display panel
When flowing driving condition, the gamma value of the display panel is adjusted, so that gamma value adjusted is less than default gamma value, it is aobvious to improve
Show panel for driving the electric current of luminescence unit.It solves and is used to drive the electric current of luminescence unit in display panel in the related technology
When smaller, the lower problem of the consistency for the image that display panel is shown.The consistency for the image that display panel is shown is reached
Higher effect.
About the device in the various embodiments described above, wherein each unit executes the concrete mode of operation in the related party
It is described in detail in the embodiment of method, no detailed explanation will be given here.
Fig. 4 is a kind of block diagram of the device 400 of display for display panel shown according to an exemplary embodiment.Example
Such as, device 400 can be mobile phone, computer, digital broadcasting terminal, messaging device, game console, and plate is set
It is standby, Medical Devices, body-building equipment, personal digital assistant etc..
Referring to Fig. 4, device 400 may include following one or more components: processing component 402, memory 404, power supply
Component 406, multimedia component 408, audio component 410, the interface 412 of input/output (I/O), sensor module 414, and
Communication component 416.
The integrated operation of the usual control device 400 of processing component 402, such as with display, telephone call, data communication, phase
Machine operation and record operate associated operation.Processing component 402 may include that one or more processors 420 refer to execute
It enables, to perform all or part of the steps of the methods described above.In addition, processing component 402 may include one or more modules, just
Interaction between processing component 402 and other assemblies.For example, processing component 402 may include multi-media module, it is more to facilitate
Interaction between media component 408 and processing component 402.
Memory 404 is configured as storing various types of data to support the operation in device 400.These data are shown
Example includes the instruction of any application or method for operating on device 400, contact data, and telephone book data disappears
Breath, picture, video etc..Memory 404 can be by any kind of volatibility or non-volatile memory device or their group
It closes and realizes, such as static random access memory (SRAM), electrically erasable programmable read-only memory (EEPROM) is erasable to compile
Journey read-only memory (EPROM), programmable read only memory (PROM), read-only memory (ROM), magnetic memory, flash
Device, disk or CD.
Power supply module 406 provides electric power for the various assemblies of device 400.Power supply module 406 may include power management system
System, one or more power supplys and other with for device 400 generate, manage, and distribute the associated component of electric power.
Multimedia component 408 includes the screen of one output interface of offer between described device 400 and user.One
In a little embodiments, screen may include liquid crystal display (LCD) and touch panel (TP).If screen includes touch panel, screen
Curtain may be implemented as touch screen, to receive input signal from the user.Touch panel includes one or more touch sensings
Device is to sense the gesture on touch, slide, and touch panel.The touch sensor can not only sense touch or sliding action
Boundary, but also detect duration and pressure associated with the touch or slide operation.In some embodiments, more matchmakers
Body component 408 includes a front camera and/or rear camera.When device 400 is in operation mode, such as screening-mode or
When video mode, front camera and/or rear camera can receive external multi-medium data.Each front camera and
Rear camera can be a fixed optical lens system or have focusing and optical zoom capabilities.
Audio component 410 is configured as output and/or input audio signal.For example, audio component 410 includes a Mike
Wind (MIC), when device 400 is in operation mode, when such as call mode, recording mode, and voice recognition mode, microphone is matched
It is set to reception external audio signal.The received audio signal can be further stored in memory 404 or via communication set
Part 416 is sent.In some embodiments, audio component 410 further includes a loudspeaker, is used for output audio signal.
I/O interface 412 provides interface between processing component 402 and peripheral interface module, and above-mentioned peripheral interface module can
To be keyboard, click wheel, button etc..These buttons may include, but are not limited to: home button, volume button, start button and lock
Determine button.
Sensor module 414 includes one or more sensors, and the state for providing various aspects for device 400 is commented
Estimate.For example, sensor module 414 can detecte the state that opens/closes of device 400, and the relative positioning of component, for example, it is described
Component is the display and keypad of device 400, and sensor module 414 can be with 400 1 components of detection device 400 or device
Position change, the existence or non-existence that user contacts with device 400,400 orientation of device or acceleration/deceleration and device 400
Temperature change.Sensor module 414 may include proximity sensor, be configured to detect without any physical contact
Presence of nearby objects.Sensor module 414 can also include optical sensor, such as CMOS or ccd image sensor, at
As being used in application.In some embodiments, which can also include acceleration transducer, gyro sensors
Device, Magnetic Sensor, pressure sensor or temperature sensor.
Communication component 416 is configured to facilitate the communication of wired or wireless way between device 400 and other equipment.Device
400 can access the wireless network based on communication standard, such as WiFi, 2G or 3G or their combination.In an exemplary implementation
In example, communication component 416 receives broadcast singal or broadcast related information from external broadcasting management system via broadcast channel.
In one exemplary embodiment, the communication component 416 further includes near-field communication (NFC) module, to promote short range communication.Example
Such as, NFC module can be based on radio frequency identification (RFID) technology, Infrared Data Association (IrDA) technology, ultra wide band (UWB) technology,
Bluetooth (BT) technology and other technologies are realized.
In the exemplary embodiment, device 400 can be believed by one or more application specific integrated circuit (ASIC), number
Number processor (DSP), digital signal processing appts (DSPD), programmable logic device (PLD), field programmable gate array
(FPGA), controller, microcontroller, microprocessor or other electronic components are realized, for executing the above method.
In the exemplary embodiment, a kind of non-transitorycomputer readable storage medium including instruction, example are additionally provided
It such as include the memory 404 of instruction, above-metioned instruction can be executed by the processor 420 of device 400 to complete the above method.For example,
The non-transitorycomputer readable storage medium can be ROM, random access memory (RAM), CD-ROM, tape, floppy disk
With optical data storage devices etc..
A kind of non-transitorycomputer readable storage medium, when the instruction in the storage medium is by the processing of device 400
When device executes, so that device 400 is able to carry out the display methods for the display panel that above-mentioned each embodiment provides.
Those skilled in the art after considering the specification and implementing the invention disclosed here, will readily occur to its of the disclosure
Its embodiment.This application is intended to cover any variations, uses, or adaptations of the disclosure, these modifications, purposes or
Person's adaptive change follows the general principles of this disclosure and including the undocumented common knowledge in the art of the disclosure
Or conventional techniques.The description and examples are only to be considered as illustrative, and the true scope and spirit of the disclosure are wanted by right
It asks and points out.
It should be understood that the present disclosure is not limited to the precise structures that have been described above and shown in the drawings, and
And various modifications and changes may be made without departing from the scope thereof.The scope of the present disclosure is only limited by the accompanying claims.
Claims (21)
1. a kind of display methods of display panel, which is characterized in that the described method includes:
When display panel performs image display, judge whether the display panel is in low current driving condition, the low electricity
Flow driving condition are as follows: the driving current of the luminescence unit of the predetermined number of the display panel is lower than the state of electric current preset value；
When the display panel is in the low current driving condition, the gamma value of the display panel is adjusted, so that adjustment
Gamma value afterwards is less than default gamma value.
2. judging whether the display panel is in low current drive the method according to claim 1, wherein described
Dynamic state, comprising:
Obtain the brightness of the display panel；
When the brightness of the display panel is less than predetermined luminance, determine that the display panel is in low current driving shape
State.
3. according to the method described in claim 2, it is characterized in that, described judge whether the display panel is in low current drive
Dynamic state, further includes:
When the brightness of the display panel is not less than the predetermined luminance, according to the grayscale for the image that the display panel is shown
Value judges whether the display panel is in the low current driving condition.
4. according to the method described in claim 3, it is characterized in that, the grayscale of the image shown according to the display panel
Value judges whether the display panel is in the low current driving condition, comprising:
The average gray-scale value of each pixel clusters in the image that the display panel is shown is obtained, any pixel clusters include at least
One sub-pixel；
Obtain pixel clusters of the average gray-scale value less than preset gray scale value and the display surface in the image that the display panel is shown
The number ratio of all pixels cluster in the image that plate is shown；
When the number ratio is greater than default ratio, determine that the display panel is in the low current driving condition.
5. according to the method described in claim 3, it is characterized in that, the grayscale of the image shown according to the display panel
Value judges whether the display panel is in the low current driving condition, comprising:
Obtain the average gray-scale value for the image that the display panel is shown；
When the average gray-scale value is lower than default average value, determine that the display panel is in the low current driving condition.
6. -5 any method according to claim 1, which is characterized in that the gamma value of the adjustment display panel,
So that gamma value adjusted is less than default gamma value, comprising:
Obtain the average gray-scale value for the image that the display panel is shown；
According to the corresponding relationship of preset grayscale value and gamma value, target gamma value corresponding to the average gray-scale value is determined,
The target gamma value is less than the default gamma value, the grayscale value and gal of the corresponding relationship record of the grayscale value and gamma value
Value of gamma is positively correlated, and any gamma value recorded in the corresponding relationship is less than the default gamma value；
The gamma value of the display panel is adjusted, so that gamma value adjusted is equal to the target gamma value.
7. according to claim 1 to 5 any the methods, which is characterized in that the gamma value of the adjustment display panel, packet
It includes:
Obtain the average gray-scale value of every sub-pixel in the image that the display panel is shown；
According to the average gray-scale value of every sub-pixel, every sub-pixel in the image for respectively showing the display panel
Gamma value is adjusted to the numerical value lower than the default gamma value, the gamma value of every sub-pixel and every sub-pixel
Average gray-scale value is positively correlated.
8. method according to any one of claims 1 to 5, which is characterized in that the method also includes:
When the display panel is not at the low current driving condition, make the gamma value of the display panel default
Gamma value.
9. method according to any one of claims 1 to 5, which is characterized in that
The display panel is Organic Light Emitting Diode OLED display panel.
10. method according to any one of claims 1 to 5, which is characterized in that the default gamma value is 2.2, the adjustment
Gamma value afterwards is more than or equal to 1.8 less than 2.2.
11. a kind of display device of display panel, which is characterized in that the display device of the display panel includes:
Judgment module is configured as judging whether the display panel is in low current when display panel performs image display
Driving condition, the low current driving condition are as follows: the driving current of the luminescence unit of the predetermined number of the display panel is lower than
The state of electric current preset value；
Module is adjusted, is configured as adjusting the display panel when the display panel is in the low current driving condition
Gamma value so that gamma value adjusted be less than default gamma value.
12. the display device of display panel according to claim 11, which is characterized in that the judgment module, comprising:
Luminance acquisition submodule is configured as obtaining the brightness of the display panel；
Low current determines submodule, is configured as determining the display when the brightness of the display panel is less than predetermined luminance
Panel is in the low current driving condition.
13. the display device of display panel according to claim 12, which is characterized in that the judgment module, further includes:
Gray scale determines submodule, is configured as when the brightness of the display panel is not less than the predetermined luminance, according to described
The grayscale value for the image that display panel is shown judges whether the display panel is in the low current driving condition.
14. the display device of display panel according to claim 13, which is characterized in that the gray scale determines submodule,
It is configured as:
The average gray-scale value of each pixel clusters in the image that the display panel is shown is obtained, any pixel clusters include at least
One sub-pixel；
Obtain pixel clusters of the average gray-scale value less than preset gray scale value and the display surface in the image that the display panel is shown
The number ratio of all pixels cluster in the image that plate is shown；
When the number ratio is greater than default ratio, determine that the display panel is in the low current driving condition.
15. the display device of display panel according to claim 13, which is characterized in that the gray scale determines submodule,
It is configured as:
Obtain the average gray-scale value for the image that the display panel is shown；
When the average gray-scale value is lower than default average value, determine that the display panel is in the low current driving condition.
16. the display device of any display panel of 1-15 according to claim 1, which is characterized in that the adjustment module,
It is configured as:
Obtain the average gray-scale value for the image that the display panel is shown；
According to the corresponding relationship of preset grayscale value and gamma value, target gamma value corresponding to the average gray-scale value is determined,
The target gamma value is less than the default gamma value, the grayscale value and gal of the corresponding relationship record of the grayscale value and gamma value
Value of gamma is positively correlated, and any gamma value recorded in the corresponding relationship is less than the default gamma value；
The gamma value of the display panel is adjusted, so that gamma value adjusted is equal to the target gamma value.
17. the display device of 1 to 15 any display panel according to claim 1, which is characterized in that the adjustment module,
It is configured as:
Obtain the average gray-scale value of every sub-pixel in the image that the display panel is shown；
According to the average gray-scale value of every sub-pixel, every sub-pixel in the image for respectively showing the display panel
Gamma value is adjusted to the numerical value lower than the default gamma value, the gamma value of every sub-pixel and every sub-pixel
Average gray-scale value is positively correlated.
18. the display device of 1 to 15 any display panel according to claim 1, which is characterized in that the display panel
Display device further include:
Default adjustment module, is configured as making the display when the display panel is not at the low current driving condition
The gamma value of panel is the default gamma value.
19. the display device of 1 to 15 any display panel according to claim 1, which is characterized in that
The display panel is Organic Light Emitting Diode OLED display panel.
20. the display device of 1 to 15 any display panel according to claim 1, which is characterized in that the default gamma
Value is 2.2, and the gamma value adjusted is more than or equal to 1.8 less than 2.2.
21. a kind of display device of display panel characterized by comprising
Processor；
For storing the memory of the executable instruction of the processor；
Wherein, the processor is configured to:
When display panel performs image display, judge whether the display panel is in low current driving condition, the low electricity
Flow driving condition are as follows: the driving current of the luminescence unit of the predetermined number of the display panel is lower than the state of electric current preset value；
When the display panel is in the low current driving condition, the gamma value of the display panel is adjusted, so that adjustment
Gamma value afterwards is less than default gamma value.
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| CN109545128B (en) * | 2017-09-22 | 2020-10-16 | 上海和辉光电股份有限公司 | Method for improving low-gray-scale color cast and OLED display panel |
| CN112071267B (en) * | 2020-09-21 | 2021-07-23 | Oppo（重庆）智能科技有限公司 | Brightness adjusting method, brightness adjusting device, terminal equipment and storage medium |
| CN112150982B (en) * | 2020-09-23 | 2023-01-10 | 京东方科技集团股份有限公司 | Display device, image display method and system thereof, and storage medium |
| CN112542141A (en) * | 2020-12-01 | 2021-03-23 | Tcl华星光电技术有限公司 | Display device and driving method thereof |
| CN113920928B (en) * | 2021-10-29 | 2022-07-12 | 重庆惠科金渝光电科技有限公司 | Display panel driver and display device |
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| JP4263153B2 (en) * | 2004-01-30 | 2009-05-13 | Ｎｅｃエレクトロニクス株式会社 | Display device, drive circuit for display device, and semiconductor device for drive circuit |
| CN101000739A (en) * | 2007-01-05 | 2007-07-18 | 友达光电股份有限公司 | Unit and device for controlling one drive circuit |
| KR100928755B1 (en) * | 2007-09-17 | 2009-11-25 | 매그나칩 반도체 유한회사 | Image display device and image display method with adjustable brightness |
| JP5032684B1 (en) * | 2011-05-27 | 2012-09-26 | 株式会社東芝 | Light emitting device, display device, and driving method of organic electroluminescent element |
| CN105528994B (en) * | 2016-02-22 | 2019-03-15 | 深圳市华星光电技术有限公司 | A kind of method and system reducing display panel power consumption |
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