CN108511488A - The driving method of display panel and display device and display panel - Google Patents
The driving method of display panel and display device and display panel Download PDFInfo
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- CN108511488A CN108511488A CN201810172744.XA CN201810172744A CN108511488A CN 108511488 A CN108511488 A CN 108511488A CN 201810172744 A CN201810172744 A CN 201810172744A CN 108511488 A CN108511488 A CN 108511488A
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
- H10K59/10—OLED displays
- H10K59/12—Active-matrix OLED [AMOLED] displays
-
- 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]
- G09G3/3225—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] using an active matrix
- G09G3/3233—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] using an active matrix with pixel circuitry controlling the current through the light-emitting element
-
- 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]
- G09G3/3266—Details of drivers for scan electrodes
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
- H10K59/10—OLED displays
- H10K59/12—Active-matrix OLED [AMOLED] displays
- H10K59/122—Pixel-defining structures or layers, e.g. banks
Abstract
The invention discloses a kind of display panel and display device and the driving methods of display panel.The display panel includes：The pixel unit group of first substrate and multiple array arrangements on the first substrate, each pixel unit group include the first pixel unit, the second pixel unit and third pixel unit；At least one of first pixel unit, second pixel unit and described third pixel unit include two sub-pixel units, wherein the color for the light that described two sub-pixel units are sent out is identical, and excitation purity is different.The scheme of the embodiment of the present invention reduces the power consumption of display panel while realizing that display panel carries out high colour gamut display.
Description
Technical field
The present invention relates to display technology more particularly to a kind of driving sides of display panel and display device and display panel
Method.
Background technology
Organic Light Emitting Diode (Organic Light Emitting Diode, OLED) display device is a kind of self-luminous
Display device.Compared to liquid crystal display device (liquid crystal display, LCD), OLED display need not carry on the back
Light source, therefore OLED display is more frivolous.In addition OLED display also has high brightness, low-power consumption, wide viewing angle, Gao Xiang
The advantages that answering speed and wide use temperature range, is applied to more and more in various high-performance display fields.
As consumer shows that the requirement of color steps up to display device, present display device market, high colour gamut
Display is an important developing direction.However after the display colour gamut for improving OLED display, it is aobvious to significantly increase OLED
The power consumption of showing device.
Invention content
The embodiment of the present invention provides a kind of driving method of display panel and display device and display panel, to realize completely
While sufficient display panel carries out high colour gamut display, the power consumption of display panel is reduced.
In a first aspect, an embodiment of the present invention provides a kind of display panel, the display panel includes：
The pixel unit group of first substrate and multiple array arrangements on the first substrate, each pixel
Unit group includes the first pixel unit, the second pixel unit and third pixel unit；
At least one of first pixel unit, second pixel unit and described third pixel unit include two
A sub-pixel unit, wherein the color for the light that described two sub-pixel units are sent out is identical, and excitation purity is different.
Second aspect, the embodiment of the present invention additionally provide a kind of display device, and the display device includes that the present invention is arbitrary
Display panel described in embodiment.
The third aspect, the embodiment of the present invention additionally provide a kind of driving method of display panel, and the display panel includes：
The pixel unit group of first substrate and multiple array arrangements on the first substrate, each pixel unit group packet
Include the first pixel unit, the second pixel unit and third pixel unit；
At least one of first pixel unit, second pixel unit and described third pixel unit include two
A sub-pixel unit, wherein the color for the light that described two sub-pixel units are sent out is identical, and excitation purity is different；
The driving method includes：
Obtain pre-display image；
When the pre-display image is high color gamut images, colour purity in two sub-pixel units of the display panel is driven
Higher sub-pixel unit is spent to shine to show the pre-display image；When the pre-display image is low color gamut images, drive
The lower sub-pixel unit of excitation purity in two sub-pixel units of the display panel is moved to shine to show the pre-display figure
Picture.
The embodiment of the present invention is by being arranged at least one in the first pixel unit, the second pixel unit and third pixel unit
A includes two sub-pixel units, and the luminescent color of two sub-pixel units is identical, and excitation purity is different so that in display image
When, it can be shown and be required according to the colour gamut of image, corresponding sub-pixel unit is selected to shine.Illustratively, when the high colour gamut of display
When image, can select the higher sub-pixel unit of excitation purity shine, when showing low color gamut images, can select excitation purity compared with
Low sub-pixel unit shines.Since the power consumption of the lower sub-pixel unit of excitation purity is relatively low so that display panel both realized
High colour gamut is shown, while also reducing power consumption.
Description of the drawings
Fig. 1 is a kind of schematic diagram of display panel provided in an embodiment of the present invention；
Fig. 2 is a kind of display colour gamut schematic diagram of display panel provided in an embodiment of the present invention；
Fig. 3 is the schematic diagram of another display panel provided in an embodiment of the present invention；
Fig. 4 is the display colour gamut schematic diagram of another display panel provided in an embodiment of the present invention；
Fig. 5 is the schematic diagram of another display panel provided in an embodiment of the present invention；
Fig. 6 is the display colour gamut schematic diagram of another display panel provided in an embodiment of the present invention；
Fig. 7 is a kind of diagrammatic cross-section of display panel provided in an embodiment of the present invention；
Fig. 8 is the diagrammatic cross-section of another display panel provided in an embodiment of the present invention；
Fig. 9 is the diagrammatic cross-section of another display panel provided in an embodiment of the present invention；
Figure 10 is the diagrammatic cross-section of another display panel provided in an embodiment of the present invention；
Figure 11 is the schematic diagram of another display panel provided in an embodiment of the present invention；
Figure 12 is a kind of schematic diagram of display device provided in an embodiment of the present invention；
Figure 13 is a kind of flow chart of the driving method of display panel provided in an embodiment of the present invention.
Specific implementation mode
The present invention is described in further detail with reference to the accompanying drawings and examples.It is understood that this place is retouched
The specific embodiment stated is used only for explaining the present invention rather than limitation of the invention.It also should be noted that in order to just
Only the parts related to the present invention are shown in description, attached drawing rather than entire infrastructure.
Inventors discovered through research that after the display colour gamut for improving OLED display, significantly increases OLED and show
The power consumption of device.By taking red device as an example, significantly dropped in the size of red spectral range, Spectral Visual function as wavelength increases
It is low.And the brightness of each device of OLED display be equal to device radiance and Spectral Visual function convolution, therefore for
The device efficiency of the red device of identical peak value radiance and halfwidth, long wavelength's (excitation purity is high) is lower.For example, for hair
The peak luminous wavelength of luminescent material is respectively the red device one and red device two of 612nm and 638nm, it is assumed that in 10mA/cm2
Driving current density when, the peak value radiance of device is 0.523W/sr/m2, halfwidth is 28nm, can be obtained red
The current efficiency of optical device one and red device two is respectively 50cd/A and 20.7cd/A.It can be seen that the feux rouges that excitation purity is high
Two efficiency of device is only the 40% of one efficiency of red device, therefore will be notable using display device power consumption made of red device two
Increase, that is, after the colour gamut for improving display device so that the power consumption of display device dramatically increases.
In view of the above-mentioned problems, the embodiment of the present invention proposes following solution：
An embodiment of the present invention provides a kind of display panel, Fig. 1 is a kind of display panel provided in an embodiment of the present invention
Schematic diagram, with reference to figure 1, the display panel includes：
The pixel unit group 20 of first substrate 10 and multiple array arrangements on first substrate 10, each pixel list
Tuple 20 includes the first pixel unit 210, the second pixel unit 220 and third pixel unit 230；
At least one of first pixel unit 210, the second pixel unit 220 and third pixel unit 230 include two
Sub-pixel unit, wherein the color for the light that described two sub-pixel units are sent out is identical, and excitation purity is different.
Specifically, the color for the light that two sub-pixel units are sent out can be the colors such as red, green or blue.Its
Middle excitation purity is used for showing the bright-coloured and depth of color, excitation purity difference i.e. two for the light that two sub-pixel units are sent out
The bright-coloured degree of the color for the light that pixel unit is sent out and depth difference.The highest color of excitation purity is exactly primary colors, Ke Yitong
It crosses colorimeter and detects two sub-pixel units and emit beam corresponding chromaticity coordinates, sub-pixel of the chromaticity coordinates closer to primary colors chromaticity coordinates
The excitation purity for the light that unit is sent out is higher.For example, the chromaticity coordinates for the feux rouges that red sub-pixel unit is sent out is closer to red former
The chromaticity coordinates of color, then the excitation purity of feux rouges is higher.The excitation purity of sub-pixel unit is directly related with the halfwidth of luminescent spectrum, and half
High wide narrower, excitation purity is higher, and chromaticity coordinates shows the chromaticity coordinates of standard closer to high colour gamut, but luminous efficiency is lower, and power consumption is more
It is high.To simplify the half of manufacture craft, the common cathode of all sub-pixel unit generally uses, therefore same color sub-pixel unit
High width difference is smaller or indifference, accordingly, for red pixel cell, the longer sub-pixel unit of the peak wavelength of luminescent spectrum
The excitation purity higher of the feux rouges sent out shows the chromaticity coordinates of standard closer to high colour gamut, as the feux rouges chromaticity coordinates of BT.2020 is
(0.708,0.292).For green pixel cell and blue pixel cells, increase the peak wavelength of luminescent spectrum, it can be effective
The power consumption of sub-pixel unit is reduced, but the excitation purity of sub-pixel unit can be reduced.
The present embodiment is by being arranged in the first pixel unit 210, the second pixel unit 220 and third pixel unit 230
At least one includes two sub-pixel units, and the luminescent color of two sub-pixel units is identical, and excitation purity is different so that aobvious
Diagram as when, can according to the color requirements of image, select corresponding sub-pixel unit shine.Optionally, when the high colour gamut of display
When image, the higher sub-pixel unit of excitation purity shines in described two sub-pixel units；It is described when showing low color gamut images
In two sub-pixel units the lower sub-pixel unit of excitation purity shine, due to the lower sub-pixel unit of excitation purity power consumption compared with
It is low, realize the power consumption that display panel reduced while high colour gamut display display panel.
It should be noted that the high colour gamut and low colour gamut in the present embodiment can be according to two sub-pixel lists in practical application
The specific excitation purity of member is specifically set, and the present embodiment is simultaneously not specifically limited.In addition, those skilled in the art can manage
Solution, the quantity for the sub-pixel unit that each pixel unit includes can also be more, such as three or four, light having the same
Color and different excitation purity selectively use when for showing different color gamut images.
Specifically, show that the first pixel unit 210 includes two sub-pixel units, i.e. the first sub-pixel unit in Fig. 1
211 and the case where the second sub-pixel unit 212.By taking the first pixel unit 210 is red pixel cell as an example, the first sub-pixel list
The excitation purity higher for the feux rouges that opposite second sub-pixel unit 212 of member 211 is sent out.Fig. 2 is one kind provided in an embodiment of the present invention
The display colour gamut schematic diagram of display panel horizontally and vertically respectively represents the abscissa of each color chromaticity coordinates in Fig. 2 and vertical sits
Mark.With reference to figure 2,211 corresponding chromaticity coordinates of the first sub-pixel unit is R ', and 212 corresponding chromaticity coordinates of the second sub-pixel unit is
R, since the corresponding colour gamut in region that RGB is surrounded is relatively low to the excitation purity requirement of feux rouges, and the corresponding color in region that RR ' B are surrounded
Domain is more demanding to the excitation purity of feux rouges, and when the corresponding colour gamut in the region that display RGB is surrounded, the second sub-pixel list may be used
The first sub-pixel unit 211 may be used when the corresponding colour gamut in the region that display RR ' B are surrounded in member 212.Due to excitation purity compared with
The power consumption of the first high sub-pixel unit 211 is higher, is only just used when showing high color gamut images, and is showing low color gamut images
When, it is only necessary to lower second sub-pixel unit 212 of power consumption is used, display panel is met and reduced while high colour gamut display
The overall power of display panel.The sub-pixel unit not used may be at closed state.
It should be noted that the present embodiment is only said so that red pixel cell includes two sub-pixel units as an example
Bright, not limitation of the invention, in other embodiments, the pixel unit of other colors can also include two sub-pixels
Unit.And the present embodiment it is merely exemplary show a pixel unit include two sub-pixel units the case where, at other
Can also be two or three pixel units in embodiment respectively includes two sub-pixel units.
Fig. 3 is the schematic diagram of another display panel provided in an embodiment of the present invention, and the present embodiment is with previous embodiment
Some corresponding variations have been done on basis.With reference to figure 3, the first pixel unit 210 includes two sub-pixel units, i.e., the first sub- picture
Plain unit 211 and the second sub-pixel unit 212, the second pixel unit 220 include two sub-pixel units, i.e. third sub-pixel list
Member 221 and the 4th sub-pixel unit 222.It is red pixel cell with the first pixel unit 210, the second pixel unit 220 is green
For color pixel unit, it is assumed that the excitation purity for the feux rouges that 211 opposite second sub-pixel unit 212 of the first sub-pixel unit is sent out is more
Height, the excitation purity higher for the green light that third sub-pixel unit 221 is sent out relative to the 4th sub-pixel unit 222.Fig. 4 is the present invention
The display colour gamut schematic diagram for another display panel that embodiment provides, with reference to figure 4,211 corresponding color of the first sub-pixel unit
Coordinate is R ', and 212 corresponding chromaticity coordinates of the second sub-pixel unit is R, and 221 corresponding chromaticity coordinates of third sub-pixel unit is G ',
4th sub-pixel unit, 222 corresponding chromaticity coordinates is G.Illustratively, the corresponding colour gamut in region surrounded by RG ' B is to feux rouges
Excitation purity requirement is relatively low, and when the corresponding colour gamut in the region that display RG ' B are surrounded, the second sub-pixel unit 212 may be used, when
When the corresponding colour gamut in the regions that surround display R ' RB, the first sub-pixel unit 211 may be used；Since R ' RGB surround region pair
The colour gamut answered, requires the excitation purity of green light relatively low, and the 4th son may be used when showing that R ' RGB surround the corresponding colour gamut in region
Third sub-pixel unit 221 may be used when the corresponding colour gamut in the region that display RG ' BG are surrounded in pixel unit 222.Due to
The power consumption of higher first sub-pixel unit 211 of excitation purity and third sub-pixel unit 221 is higher, is only showing high color gamut images
When just light, and when showing the image of low colour gamut, then use lower second sub-pixel unit, 212 and the 4th sub-pixel of power consumption
Unit 222 reduces the overall power of display panel while meeting display panel and carrying out the display of high colour gamut.
First pixel unit 210 and the second pixel unit 220 respectively include two sub-pixels to merely exemplary the showing of Fig. 3
The case where unit, can also be that the first pixel unit 210 and third pixel unit 230 respectively include two in other embodiments
A sub-pixel unit can also be that the second pixel unit 220 and third pixel unit 230 respectively include two sub-pixel units,
The present embodiment does not limit this, can require to be selected according to the display of different display panels.And the present embodiment only shows
Example property shows that the first pixel unit 210 is red pixel cell, and the second pixel unit 220 is the feelings of green pixel cell
Condition, not limitation of the invention, the first pixel unit 210 and the second pixel unit 220 can be in other embodiments
For red pixel cell and blue pixel cells, or green pixel cell and blue pixel cells.
Fig. 5 is the schematic diagram of another display panel provided in an embodiment of the present invention, and the present embodiment is with previous embodiment
Some corresponding variations have been done on basis.With reference to figure 5, the first plain unit 210 includes two sub-pixel units, i.e. the first sub-pixel
Unit 211 and the second sub-pixel unit 212, the second pixel unit 220 include two sub-pixel units, i.e. third sub-pixel unit
221 and the 4th sub-pixel unit 222, third pixel unit 230 include two sub-pixel units, i.e. the 5th sub-pixel unit 231
With the 6th sub-pixel unit 232.Optionally, the first pixel unit 210 is red pixel cell, and the second pixel unit 220 is green
Color pixel unit, third pixel unit 230 are blue pixel cells.Assuming that 211 opposite second sub-pixel of the first sub-pixel unit
The excitation purity higher for the feux rouges that unit 212 is sent out, third sub-pixel unit 221 are sent out relative to the 4th sub-pixel unit 222
The excitation purity higher of green light, the excitation purity for the blue light that the 5th sub-pixel unit 231 is sent out relative to the 6th sub-pixel unit 232 is more
It is high.Fig. 6 is the display colour gamut schematic diagram of another display panel provided in an embodiment of the present invention, with reference to figure 6, the first sub-pixel list
First 211 corresponding chromaticity coordinates are R ', and 212 corresponding chromaticity coordinates of the second sub-pixel unit is R, and third sub-pixel unit 221 corresponds to
Chromaticity coordinates be G ', 222 corresponding chromaticity coordinates of the 4th sub-pixel unit is G, and 231 corresponding chromaticity coordinates of the 5th sub-pixel unit is
B ', 232 corresponding chromaticity coordinates of the 6th sub-pixel unit are B.Illustratively, the corresponding colour gamut in region surrounded due to RGB is to red
The excitation purity requirement of light, green light and blue light is relatively low, and when the corresponding colour gamut in the region that display RGB is surrounded, the second son may be used
Pixel unit 212, the 4th sub-pixel unit 222 and the 6th sub-pixel unit 232；Area except the region that display RGB is surrounded
When the corresponding colour gamut in domain, the first sub-pixel unit 211, third sub-pixel unit 221 and the 5th sub-pixel unit may be used
231.Due to higher first sub-pixel unit 211 of excitation purity, third sub-pixel unit 221 and the 5th sub-pixel unit 231
Power consumption is higher, is only just lighted when showing high color gamut images, and when showing the image of low colour gamut, then uses power consumption lower the
Two sub-pixel units 212, the 4th sub-pixel unit 222 and the 6th sub-pixel unit 232, it is aobvious meeting the high colour gamut of display panel
While showing, the overall power of display panel is reduced.
In the embodiment of the present invention, display panel further includes driving circuit, driving circuit respectively with two sub-pixel units
It is connected, shines when driving two sub-pixel unit differences.Specifically, described two can be driven when showing high color gamut images
The higher sub-pixel unit of excitation purity shines in a sub-pixel unit；When showing low color gamut images, described two sub- pictures are driven
The lower sub-pixel unit of excitation purity shines in plain unit, since the power consumption of the lower sub-pixel unit of excitation purity is relatively low, realizes
Display panel reduced while high colour gamut display the power consumption of display panel.
Fig. 7 is a kind of diagrammatic cross-section of display panel provided in an embodiment of the present invention, optionally, with reference to figure 7, vertical
In on the direction of first substrate 10, the microcavity chamber long L1 and L2 of described two sub-pixel units is different.
Wherein, the reflecting electrode of sub-pixel unit and half counterelectrode constitute optical microresonator, i.e. microcavity.Reflecting electrode with
Each film layer and the chamber that the overall thickness of reflecting electrode and half counterelectrode is microcavity are long between half counterelectrode.In microcavity, only wave
Long λ meetsLight can just be enhanced, remaining light will
It can weaken.Wherein, k* λ=2Leff, k is microcavity series, nmAnd dmM layers of refractive index and thickness, θ respectively in microcavity0For hair
Angular, LeffFor effective light path, Φ1(λ) and Φ2(λ) is respectively the reflection phase shift of reflecting electrode and half counterelectrode.The present embodiment
The luminescent spectrum for adjusting sub-pixel unit is grown by adjusting microcavity chamber, so as to adjust the colour purity of sub-pixel unit to emit beam
Degree, since the adjusting of microcavity chamber length is easier to realize in technique, the scheme of the present embodiment reduces technology difficulty.
Optionally, described two sub-pixel units are red sub-pixel unit, wherein the higher sub-pixel list of excitation purity
The microcavity chamber length of member is long more than the microcavity chamber of the lower sub-pixel unit of excitation purity；Alternatively, described two sub-pixel units are
The microcavity chamber length of the higher sub-pixel unit of green sub-pixels unit, wherein excitation purity is less than the lower sub-pixel unit of excitation purity
Microcavity chamber it is long；Alternatively, described two sub-pixel units are blue subpixels unit, the wherein higher sub-pixel list of excitation purity
The microcavity chamber length of member is long less than the microcavity chamber of the lower sub-pixel unit of excitation purity.
Specifically, for red sub-pixel unit, the microcavity chamber by the way that two red sub-pixel units are arranged grows difference, makes
It is larger one smaller to obtain the peak wavelength one that two red sub-pixel units emit beam, i.e., so that two red sub-pixel lists
Member has different excitation purity, and the red sub-pixel unit of corresponding excitation purity according to the color requirements of image, can be selected to shine,
Reduce the power consumption of display panel.For green sub-pixels unit and blue subpixels unit, increasing microcavity chamber length can be effective
The power consumption of sub-pixel unit is reduced, but the excitation purity of sub-pixel unit can be reduced, by the way that the lower sub-pixel list of excitation purity is arranged
The microcavity chamber length of member is long more than the microcavity chamber of the higher sub-pixel unit of excitation purity, reduces the power consumption of display panel.
Preferably, on the direction of first substrate 10, the microcavity chamber length of described two sub-pixel units differs 1-
50nm.In this way, ensure that the overall thickness difference of two sub-pixel units is not too large, it is easy to implement in technique, and
It ensure that display panel has relatively thin thickness, meet the lightening development trend of display panel.
Fig. 8 is the diagrammatic cross-section of another display panel provided in an embodiment of the present invention, optionally, with reference to figure 7 and figure
8, each sub-pixel unit includes the first electrode 310, light emitting functional layer 320 and second electrode 330 being cascading,
Wherein, first electrode 310 is reflecting electrode.
With reference to figure 7, on the direction of first substrate 10, the thickness of the first electrode of described two sub-pixel units
S1 and S2 is different, and/or, with reference to figure 8, on the direction of first substrate 10, described two sub-pixel units shine
The thickness H1 and H2 of functional layer 320 is different.
Specifically, the thickness of each film layer and refractive index are to influence two key factors of microcavity chamber length in microcavity.Second
Electrode 330 is half counterelectrode, and the metal of thin layer is used to be formed, such as can be the silver formation of thin layer, and the refraction of metal layer
Rate is smaller, and its thinner thickness, and thickness adjustable extent is smaller, therefore the thickness of second electrode 330 is smaller on the length influence of microcavity chamber.
The present embodiment is long come the chamber that adjusts microcavity by adjusting the thickness of first electrode 310 or light emitting functional layer 320, due to the first electricity
The thickness adjustable extent of pole 310 and light emitting functional layer 320 is larger, and the material that first electrode 310 and light emitting functional layer 320 use
The refractive index of material is relatively large, and the thickness for adjusting first electrode 310 and light emitting functional layer 320 is affected to microcavity chamber length,
It ensure that microcavity chamber length has larger adjustable extent.
It should be noted that first electrode 310 is located at light emitting functional layer 320 and faces for merely exemplary showing in Fig. 7 and Fig. 8
The case where side of nearly substrate 10, i.e. display panel are emission structure at top, not limitation of the invention, in other embodiment
In, display panel can also be bottom emitting structure etc..
Fig. 9 is that the diagrammatic cross-section of another display panel provided in an embodiment of the present invention optionally with reference to figure 9, shines
Functional layer 320 includes optional hole injection layer 321, optional hole transmission layer 322, the organic luminous layer being cascading
323, optional electron transfer layer 324 and optional electron injecting layer 325.Wherein, described two sub-pixel units is optional
Hole injection layer 321, optional hole transmission layer 322, organic luminous layer 323, optional electron transfer layer 324 and optional electricity
It is at least one layer of different in the thickness on the direction of first substrate 10 in sub- implanted layer 325.
Specifically, first electrode 310 can be anode, and second electrode 330 can be cathode, and hole injection layer 321 can be with
The side of first electrode 310 is closed on positioned at hole transmission layer 320.It can be by adjusting hole injection layer 321, hole transmission layer
322, any one layer in organic luminous layer 323, electron transfer layer 324 and electron injecting layer 325 or arbitrary several layers of micro- to adjust
Chamber chamber is long, and the present invention does not limit this.
It should be noted that the structure that can not also be arranged can be arranged in optional structure in the present embodiment, for example, working as
When being not provided with hole injection layer and hole transmission layer, light emitting functional layer includes organic luminous layer, electron transfer layer and electron injection
Layer.It includes hole injection layer, hole transmission layer, organic luminous layer, electron transfer layer and electronics that Fig. 9, which illustrates only light emitting functional layer,
The case where implanted layer, not limitation of the invention can also be arranged as required to light emitting functional layer in other embodiments
Do not include one or more layers in hole injection layer, hole transmission layer, electron transfer layer and electron injecting layer.
Figure 10 is the diagrammatic cross-section of another display panel provided in an embodiment of the present invention, optionally, with reference to figure 10, instead
Radio pole (first electrode) 310 includes reflecting layer 311 and transparency conducting layer 312；Wherein, described two sub-pixel units is transparent
Conductive layer 312 is different in the thickness M1 and M2 on the direction of first substrate 10.
Preferably, tin indium oxide (IndiumTinOxide, ITO) material, reflecting layer may be used in transparency conducting layer 312
311 may be used the metal of thin layer, such as metallic silver may be used.Wherein, reflecting layer 311 is mainly reflected with to light,
It is set to be emitted by second electrode 330, transparency conducting layer 312 has high work function, plays the role of enhancing hole injection.Due to
The refractive index of transparency conducting layer 312 is relatively large, and the thickness for adjusting transparency conducting layer 312 is affected to microcavity chamber length, leads to
The thickness for overregulating transparency conducting layer 312 ensure that microcavity chamber length has larger adjustable extent.
Optionally, the luminescent material that the organic luminous layer of described two sub-pixel units uses is different.
Specifically, the luminescent spectrum of microcavity chamber length and luminescent material is the excitation purity for influencing the light that sub-pixel unit is sent out
Two key factors, identical luminescent material may be used in two sub-pixel units, can be grown by adjusting the chamber of microcavity come
Adjust the excitation purity for the light that sub-pixel unit is sent out so that the excitation purity of two sub-pixel units is different.However only microcavity
When resonance wavelength is consistent with the peak luminous wavelength of luminescent material, maximum luminous efficiency could be obtained, if therefore two sub- pictures
Plain unit use identical material, will necessarily there are one sub-pixel unit luminous efficiency it is relatively low, power consumption is higher, therefore this implementation
The organic luminous layer of two sub-pixel units uses different luminescent materials, the peak luminous wavelength point of two kinds of luminescent materials in example
It is not consistent with corresponding microcavity chamber length, keep the luminous efficiency of two sub-pixel units maximum, further decreases the work(of display panel
Consumption.
Optionally, with reference to figure 1, Fig. 3 and Fig. 5, the first pixel unit 210, the second pixel unit 220 and third pixel unit
230 are arranged in order along first direction X；Described two sub-pixel units are arranged along first direction X.Figure 11 is that the embodiment of the present invention carries
The schematic diagram of another display panel supplied, optionally, with reference to figure 11, the first pixel unit 210,220 and of the second pixel unit
Third pixel unit 230 is arranged in order along first direction X；Y is arranged described two sub-pixel units (211 and 212) in a second direction
Row；Wherein, first direction X and second direction Y intersect.
Specifically, can two sons that each pixel unit includes be set according to shape, size of each sub-pixel unit etc.
The arrangement mode of pixel unit.The present embodiment it is merely exemplary give two different arrangement modes, not to the present invention
It limits.In other embodiments, it can be required according to the difference of display panel, other arrangement modes, the first pixel list are set
The arrangement mode for the sub-pixel unit that first 210, second pixel unit 220 includes with third pixel unit 230 can identical also may be used
With difference, the present embodiment is simultaneously not specifically limited.For example, two sub-pixel units and third that the first pixel unit 210 includes
Two sub-pixel units that pixel unit 230 includes are arranged along first direction X, two sons that the second pixel unit 220 includes
Y is arranged pixel unit in a second direction.In addition, the angle between first direction X and second direction Y can be set as needed
It sets, it is preferred that first direction X and second direction Y are mutually perpendicular to.
The present embodiment additionally provides a kind of display device, and Figure 12 is a kind of showing for display device provided in an embodiment of the present invention
It is intended to, with reference to figure 12, display device 100 includes the display panel 200 that any embodiment of the present invention is provided.Display device 100
It can be the electronic equipment of such as mobile phone or tablet computer etc.
Optionally, display device further includes：Display driver chip for obtaining pre-display image, and works as the pre-display
When image is high color gamut images, the higher sub-pixel unit of excitation purity in described two sub-pixel units is driven to shine to show
State pre-display image；When the pre-display image is low color gamut images, drive in described two sub-pixel units excitation purity compared with
Low sub-pixel unit shines to show the pre-display image.
Illustratively, display driver chip can send drive signal to the display driver circuit of display panel, so that institute
Stating display driver circuit drives corresponding sub-pixel unit to shine.
Display device provided in this embodiment is by being arranged the first pixel unit, the second pixel unit and third pixel unit
At least one of include two sub-pixel units, and the luminescent color of two sub-pixel units is identical, and excitation purity is different so that
When showing image, corresponding sub-pixel unit can be selected to shine according to the color requirements of image, when the high color gamut images of display
When, the higher sub-pixel unit of excitation purity can be selected to shine, when showing low color gamut images, excitation purity can be selected lower
Sub-pixel unit shines, and since the power consumption of the lower sub-pixel unit of excitation purity is relatively low, is realizing that the high colour gamut of display device is aobvious
The power consumption of display device is reduced while showing.
The present embodiment additionally provides a kind of displaying panel driving method, realizes that the display panel of the driving method includes：The
The pixel unit group of one substrate and multiple array arrangements on the first substrate, each pixel unit group include
First pixel unit, the second pixel unit and third pixel unit；
At least one of first pixel unit, second pixel unit and described third pixel unit include two
A sub-pixel unit, wherein the color for the light that described two sub-pixel units are sent out is identical, and excitation purity is different.
Figure 13 is a kind of flow chart of the driving method of display panel provided in an embodiment of the present invention, described with reference to figure 13
Method includes：
Step 410 obtains pre-display image.
Step 420, when the pre-display image be high color gamut images when, drive two sub-pixel lists of the display panel
The higher sub-pixel unit of excitation purity shines to show the pre-display image in member；When the pre-display image is low gamut map
When picture, the lower sub-pixel unit of excitation purity in two sub-pixel units of the display panel is driven to shine to show pre-display
Image.
Displaying panel driving method provided in this embodiment when display panel shows high color gamut images, driving excitation purity compared with
High sub-pixel unit shines, and shows low color gamut images in display panel, the lower sub-pixel unit of excitation purity is selected to shine, by
It is relatively low in the power consumption of the lower sub-pixel unit of excitation purity so that display device had both realized high colour gamut and shown, reduced simultaneously
Power consumption.
The display panel category that the driving method of display panel provided in this embodiment is provided with any embodiment of the present invention
In same inventive concept, has corresponding advantageous effect.The not technical detail of detailed description in the present embodiment, reference can be made to this hair
The display panel that bright any embodiment provides.
Note that above are only presently preferred embodiments of the present invention and institute's application technology principle.It will be appreciated by those skilled in the art that
The present invention is not limited to specific embodiments described here, can carry out for a person skilled in the art it is various it is apparent variation,
It readjusts and substitutes without departing from protection scope of the present invention.Therefore, although being carried out to the present invention by above example
It is described in further detail, but the present invention is not limited only to above example, without departing from the inventive concept, also
May include other more equivalent embodiments, and the scope of the present invention is determined by scope of the appended claims.
Claims (11)
1. a kind of display panel, which is characterized in that including：
The pixel unit group of first substrate and multiple array arrangements on the first substrate, each pixel unit
Group includes the first pixel unit, the second pixel unit and third pixel unit；
At least one of first pixel unit, second pixel unit and described third pixel unit include two sons
Pixel unit, wherein the color for the light that described two sub-pixel units are sent out is identical, and excitation purity is different.
2. display panel according to claim 1, it is characterised in that：
The display panel further includes driving circuit, and the driving circuit is connected with described two sub-pixel units respectively, to drive
It shines when moving described two sub-pixel unit differences.
3. display panel according to claim 1, it is characterised in that：
On the direction of the first substrate, the microcavity chamber length of described two sub-pixel units is different, and preferably described two
The microcavity chamber length difference 1-50nm of a sub-pixel unit.
4. display panel according to claim 3, it is characterised in that：
Described two sub-pixel units are red sub-pixel unit, and the microcavity chamber of the wherein higher sub-pixel unit of excitation purity is long
Microcavity chamber more than the lower sub-pixel unit of excitation purity is long；Or
Described two sub-pixel units are green sub-pixels unit, and the microcavity chamber of the wherein higher sub-pixel unit of excitation purity is long
Microcavity chamber less than the lower sub-pixel unit of excitation purity is long；Or
Described two sub-pixel units are blue subpixels unit, and the microcavity chamber of the wherein higher sub-pixel unit of excitation purity is long
Microcavity chamber less than the lower sub-pixel unit of excitation purity is long.
5. display panel according to claim 3, it is characterised in that：
Each sub-pixel unit includes the first electrode, light emitting functional layer and second electrode being cascading, wherein institute
It is reflecting electrode to state first electrode；
On the direction of the first substrate, the thickness of the first electrode of described two sub-pixel units is different, and/
Or, the thickness of the light emitting functional layer of described two sub-pixel units is different.
6. display panel according to claim 5, it is characterised in that：
The reflecting electrode includes reflecting layer and transparency conducting layer, wherein the transparency conducting layer of described two sub-pixel units is hanging down
Directly different in the thickness on the direction of the first substrate, the preferably described transparency conducting layer is indium tin oxide layer.
7. display panel according to claim 5, it is characterised in that：
The light emitting functional layer includes the optional hole injection layer, optional hole transmission layer, You Jifa being cascading
Photosphere, optional electron transfer layer and optional electron injecting layer；Wherein, the optional sky in described two sub-pixel units
Cave implanted layer, the optional hole transmission layer, the organic luminous layer, the optional electron transfer layer and optional described
It is at least one layer of different in the thickness on the direction of the first substrate in electron injecting layer.
8. display panel according to claim 7, it is characterised in that：
The luminescent material that the organic luminous layer of described two sub-pixel units uses is different.
9. display panel according to claim 1, it is characterised in that：
First pixel unit, second pixel unit and the third pixel unit are arranged in order along first direction；Institute
Two sub-pixel units are stated to arrange along the first direction；Or
First pixel unit, second pixel unit and the third pixel unit are arranged in order along first direction；Institute
Two sub-pixel units are stated to arrange in a second direction；Wherein, the first direction and the second direction intersect；It is preferred that institute
It states first direction and the second direction is mutually perpendicular to.
10. a kind of display device, which is characterized in that including the display panel described in any one of claim 1-9.
11. a kind of driving method of display panel, which is characterized in that the display panel includes first substrate and is located at described
The pixel unit group of multiple array arrangements on first substrate, each pixel unit group include the first pixel unit, second
Pixel unit and third pixel unit；
At least one of first pixel unit, second pixel unit and described third pixel unit include two sons
Pixel unit, wherein the color for the light that described two sub-pixel units are sent out is identical, and excitation purity is different；
The driving method includes：
Obtain pre-display image；
When the pre-display image is high color gamut images, drive in two sub-pixel units of the display panel excitation purity compared with
High sub-pixel unit shines to show the pre-display image；When the pre-display image is low color gamut images, institute is driven
The lower sub-pixel unit of excitation purity in two sub-pixel units of display panel is stated to shine to show the pre-display image.
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| CN201810172744.XA CN108511488A (en) | 2018-03-01 | 2018-03-01 | The driving method of display panel and display device and display panel |
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| CN112669773A (en) * | 2020-12-31 | 2021-04-16 | 深圳Tcl数字技术有限公司 | Color gamut adjusting method of display device, display device and readable storage medium |
| CN113299697A (en) * | 2021-05-07 | 2021-08-24 | 武汉华星光电半导体显示技术有限公司 | Display panel |
| CN114038874A (en) * | 2021-07-27 | 2022-02-11 | 重庆康佳光电技术研究院有限公司 | Display panel and display screen |
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