CN108986741A - A kind of OLED display panel and OLED display - Google Patents
A kind of OLED display panel and OLED display Download PDFInfo
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- CN108986741A CN108986741A CN201810812816.2A CN201810812816A CN108986741A CN 108986741 A CN108986741 A CN 108986741A CN 201810812816 A CN201810812816 A CN 201810812816A CN 108986741 A CN108986741 A CN 108986741A
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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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- 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
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Electroluminescent Light Sources (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
Abstract
The invention discloses a kind of OLED display panel and OLED displays, the OLED display panel is by being respectively configured the first power bus and second source bus, so that the first sub-pixel of central display area is electrically connected to first power bus and obtains the first driving voltage from first power bus, and the second sub-pixel of transition display area is then electrically connected to the second source bus and obtains the second driving voltage from the second source bus；The area of second sub-pixel is less than the area of first sub-pixel, the second driving voltage provided in the second source bus is greater than the first driving voltage provided on first power bus, it can compensate for the luminance difference of first sub-pixel and second sub-pixel, and then the brightness of entire special-shaped viewing area is made to keep in balance, the luminance difference avoided in different zones generates visual crenellated phenomena.
Description
Technical field
The present invention relates to the technical field of Organic Light Emitting Diode, especially a kind of OLED display panel and OLED display dress
It sets.
Background technique
In the prior art, the display area of OLED display panel is mostly rectangle, therefore the sub-pixel of OLED display panel is all
It is designed as rectangle, and in OLED abnormity display panel, due to the contour line of the circumferential profile for defining OLED display panel
It often include circular arc, when needing along the contour line of display panel to arrange sub-pixel to constitute special-shaped viewing area, such as Fig. 1 institute
Show, rectangle sub-pixel 3 can not coincide with the contour line completely, cause the outer of the adjacent ranks with different number of sub-pixel
All profiles form stepped region 30a, and then form visual crenellated phenomena.
Generally, with reference to exemplary drawings of OLED display panel in the prior art as shown in Figure 1, to solve above-mentioned ask
Topic, the prior art can be outside the central display areas 30 being made of rectangle sub-pixel 3, and circumferential profile is arranged can be with the contour line
The special-shaped sub-pixel 4 of coincidence constitutes transition display area 40, these abnormity sub-pixels 4 are set to the stepped region 30a, so that
All sub-pixels constitute the circumferential profile 50 of special-shaped viewing area and the contour line coincide, and generate sawtooth to avoid because of above-mentioned reason
Phenomenon.
But if driving special-shaped display panel with the driving circuit of the prior art, the central display area 30 and described
The sub-pixel of transition display area 40 is driven by same power bus, the rectangle sub-pixel of the central display area 30
3 is identical with the driving voltage of the special-shaped sub-pixel 4 of the transition display area 40, and different due to the transition display area 40
The area of shape sub-pixel 4 is different from the area of sub-pixel 3 of the central display area 30, makes the transition display area 40
The luminous intensity of special-shaped sub-pixel 4 and the luminous intensity of rectangle sub-pixel 3 of central display area 30 are different, such as: it is described different
When the area of shape sub-pixel 4 is less than the area of the rectangle sub-pixel 3, under the driving of identical driving voltage, the abnormity
The brightness of sub-pixel 4 will be less than the brightness of the rectangle sub-pixel, therefore, using this kind of scheme of the prior art, different zones
On luminance difference still can visually generate certain crenellated phenomena.
Therefore, the existing technology needs to be improved and developed.
Summary of the invention
In view of this, the purpose of the present invention is to provide a kind of OLED display panel and OLED displays, on solving
State problem.
In order to achieve the above purpose, present invention employs the following technical solutions:
Present invention firstly provides a kind of OLED display panel, including special-shaped viewing area, the abnormity viewing area includes
Display area and transition display area are entreated, multiple first sub-pixels, the center display are provided in the central display area
The edge in region includes stepped region, and multiple second sub-pixels are provided in the stepped region and form the transition display area；
Wherein, the first power bus and second source bus are configured in the OLED display panel, first sub-pixel electrically connects
It is connected to first power bus and obtains the first driving voltage from first power bus, second sub-pixel is electrical
It is connected to the second source bus and obtains the second driving voltage from the second source bus；Second sub-pixel
Area is less than the area of first sub-pixel, and the second driving voltage provided in the second source bus is greater than described first
The first driving voltage provided on power bus.
It preferably, include head end and/or end mutually not concordant two adjacent rows first in the central display area
Sub-pixel is to form the stepped region.
Preferably, a plurality of first power distribution cable, the first power supply branch described in each are connected on first power bus
Line corresponds to column first sub-pixel in the central display area, and each column first sub-pixel is connected to same
First power distribution cable is to be electrically connected to first power bus.
Preferably, the both ends of the first power distribution cable described in each are electrically connected with first power bus respectively.
Preferably, it is connected with a plurality of second source branch line in the second source bus, each described second sub-pixel
The second source bus is electrically connected to by a second source branch line.
Preferably, the transition display area includes first boundary not adjacent with the central display area, and described the
One boundary has arc-shaped boundary profile.
Preferably, the circumferential profile of the special-shaped viewing area is circle.
Preferably, first power bus and the second source bus are respectively the circle around the special-shaped viewing area
Shape walks wire shaped, first power bus are located at the inside of the second source bus.
The present invention also provides a kind of OLED display, including OLED display panel as described above, the OLED is aobvious
Show that panel includes drive circuit layer and the OLED display device that is connected in the drive circuit layer, the driving unit with it is described
Drive circuit layer connection, the driving unit is to the drive circuit layer input drive signal, and the drive circuit layer is according to institute
Stating driving signal drives the OLED display device to show image.
A kind of OLED display panel and OLED display provided by the invention, by the way that different power bus is arranged, point
Not Wei central display area the first sub-pixel and transition display area the second sub-pixel supply driving voltage, in the second sub- picture
In the case where area of the area less than the first sub-pixel of element, the second driving voltage of second source bus supply is greater than the first electricity
First driving voltage of source bus supply, and then make the brightness adjustment of first sub-pixel and second sub-pixel to peer-level, it keeps away
The luminance difference exempted from different display areas generates visual crenellated phenomena.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the OLED display panel of the prior art；
Fig. 2 is the structural schematic diagram for the OLED display panel that the present invention provides embodiment 1；
Fig. 3 is the circuit diagram of the driving circuit in the embodiment of the present invention 1；
Fig. 4 is the connection schematic diagram of the first sub-pixel and the first power bus in the embodiment of the present invention 1；
Fig. 5 is the connection schematic diagram of the second sub-pixel and second source bus in the embodiment of the present invention 1；
Fig. 6 is the structural block diagram for the OLED display that the embodiment of the present invention 2 provides.
Specific embodiment
To make the object, technical solutions and advantages of the present invention clearer, with reference to the accompanying drawing to specific reality of the invention
The mode of applying is described in detail.The example of these preferred embodiments is illustrated in the accompanying drawings.Shown in attached drawing and according to
The embodiments of the present invention of attached drawing description are only exemplary, and the present invention is not limited to these embodiments.
Here, it should also be noted that, in order to avoid having obscured the present invention because of unnecessary details, in the accompanying drawings only
Show with closely related structure and/or processing step according to the solution of the present invention, and be omitted relationship it is little other are thin
Section.
Embodiment 1
Refering to shown in Fig. 2, (to avoid excessive connecting line from causing diagramatic content excessively many and diverse, Fig. 2 is not drawn into following each
The connecting line of sub-pixel and corresponding power bus, and other first sub- pictures in central display area 10 are saved using ellipsis
1) element, present embodiments provides a kind of OLED display panel 101, including special-shaped viewing area 100.
Wherein, the special-shaped viewing area 100 includes central display area 10 and transition display area 20, the center display
It is provided with multiple first sub-pixels 1 in region 10, the edge of the central display area 10 includes stepped region 10a, and described
It is provided with multiple second sub-pixels 2 in rank area 10a and forms the transition display area 20.Match in the OLED display panel 101
It is equipped with the first power bus 1a and second source bus 2a, first sub-pixel 1 is electrically connected to first power bus
1a simultaneously obtains the first driving voltage from the first power bus 1a, and second sub-pixel 2 is electrically connected to described second
Power bus 2a simultaneously obtains the second driving voltage from the second source bus 2a.The area of second sub-pixel 2 is less than
The area of first sub-pixel 1, the second driving voltage provided on the second source bus 2a are greater than first power supply
The first driving voltage provided on bus 1a.
In OLED display panel 101 provided in this embodiment, using different power bus respectively to central display area
10 the first sub-pixel 1 and the second sub-pixel 2 of transition display area 20 supply driving voltage, in the situation that remaining condition is constant
Under, the second driving voltage provided on the second source bus 2a is greater than first provided on the first power bus 1a and drives
Dynamic voltage can compensate for the luminance difference that the first sub-pixel 1 and the second sub-pixel 2 generate, so that each on the abnormity viewing area 100
Locate luminance proportion, avoids and generate visual crenellated phenomena.
Illustratively, as shown in fig.3, in OLED display panel provided in this embodiment 101, the driving circuit of sub-pixel
Using the structure setting of 2T1C: the driving circuit includes switching transistor T1 and driving transistor T2 and capacitor C, described to open
The grid for closing transistor T1 connects scan line Scan, and the source electrode of the switching transistor T1 connects data line Data, the switch
The drain electrode of transistor T1 is connected on the grid of the driving transistor T2；The source electrode connection power supply of the driving transistor T2 is total
Line, the Organic Light Emitting Diode D of the drain electrode connection sub-pixel of the driving transistor T2；One end of the capacitor C is connected to institute
The grid of driving transistor T2 is stated, the other end is connected to the drain electrode for driving transistor T2 and the Organic Light Emitting Diode D
Between.Wherein, the switching transistor T1 controls data line Data to the driving according to the scanning signal on scan line Scan
The access of transistor T2 transmission data-signal；The driving transistor T2 receives the driving voltage V that power bus providesDD, for institute
It states Organic Light Emitting Diode D and driving current is provided；The capacitor C is used to tie up in the light emitting phase of the Organic Light Emitting Diode D
Hold the data voltage being applied on the grid of driving transistor T2.
In above-mentioned driving circuit, the drain current I of the driving transistor T2 where Organic Light Emitting Diode Dd=K (VDD-
Vdata)2, K is a constant relevant to the driving structure of transistor T2, VDDFor the driving voltage that power bus provides, VdataFor
The corresponding data voltage of data-signal on data line Data.In the situation that other conditions are constant it can be seen from above-mentioned formula
Under, by the driving voltage V for changing power bus offerDDIt can change above-mentioned drain current IdThat is Organic Light Emitting Diode D's
Driving current, and then change the light emission luminance of Organic Light Emitting Diode D.And in the present embodiment, the driving electricity of the first sub-pixel 1
Difference between road and the driving circuit of the second sub-pixel 2, which is to access, drives the power bus of transistor T2 different, therefore passes through
The second driving voltage that the first driving voltage and second source bus 2a for regulating and controlling the first power bus 1a offer respectively provide, can
To adjust the driving current of the first sub-pixel 1 and the corresponding Organic Light Emitting Diode D of the second sub-pixel 2 respectively, so as to
To realize the purpose that the brightness of first sub-pixel 1 and the second sub-pixel 2 is adjusted to mutual equilibrium.
In the present embodiment, above-mentioned first sub-pixel 1 is the sub-pixel of rectangle, first sub-pixel 1 and the second sub- picture
2 default of element is arranged in array.
It specifically, include head end and/or end mutually not concordant two adjacent rows in the central display area 10
One sub-pixel 1 is to form the stepped region 10a.
The merely illustrative number of second sub-pixel number shown in FIG. 1 needs the OLED display surface according to abnormity under concrete condition
The elements such as the arrangement spacing of the shape of plate, the area of sub-pixel and sub-pixel are configured.Other realities except this embodiment
It applies in mode, at least provided with three second sub-pixels 2, including red sub-pixel, green in each stepped region 10a
Sub-pixel and blue subpixels only can constitute independent pixel by the second sub-pixel 2 in each stepped region 10a as a result,
Unit.
(being clear performance connection relationship in Fig. 3, only draw the first sub-pixel 1 of part) as shown in connection with fig. 4, illustratively,
A plurality of first power distribution cable 1b is connected on the first power bus 1a, the first power distribution cable 1b described in each corresponds to institute
State in central display area 10 column first sub-pixel 1, each column first sub-pixel 1 is connected to described in same the
One power distribution cable 1b is to be electrically connected to the first power bus 1a.By above-mentioned cabling mode, cabling distribution can be made opposite
Equilibrium avoids many and diverse cabling from influencing the setting of other component.
Further, the both ends of the first power distribution cable 1b described in each electrically connect with the first power bus 1a respectively
It connects.Thus, it is possible to make the voltage drop equiblibrium mass distribution on the first power distribution cable 1b.
(Fig. 4 is that clear performance connection relationship only draws the second sub-pixel of part 2, and wherein curve, which represents, saves as shown in connection with fig. 5
A part of second source bus 2a slightly), illustratively, a plurality of second source branch line is connected on the second source bus 2a
2b, each described second sub-pixel 2 are electrically connected to the second source bus by a second source branch line 2b
2a.Certainly, according to practical wiring situation needs, the second source branch line 2b can also be using above-mentioned first power distribution cable 1b's
Cabling mode makes each column second sub-pixel 2 be connected to second source branch line 2b described in same to be electrically connected to
State second source bus 2a.
In the present embodiment, the transition display area 20 includes the first side not abutted with the central display area 10
Boundary, first boundary have arc-shaped boundary profile.
In the present embodiment, the circumferential profile 100a of the special-shaped viewing area 100 is circle.
Further, the first power bus 1a and second source bus 2a is respectively around the abnormity display
The round walks wire shaped in area, the first power bus 1a are located at the inside of the second source bus 2a.It is possible thereby to not
Under the premise of influencing cabling distribution orderly, shortens and be connected to the distance of corresponding power bus in each power distribution cable.
Embodiment 2
As shown in connection with fig. 6, the present invention also provides a kind of OLED displays, including driving unit 102 and such as embodiment 1
The OLED display panel 101, the OLED display panel 101 include drive circuit layer and are connected to the drive circuit layer
On OLED display device, the driving unit 102 connect with the drive circuit layer, and the driving unit 102 is to the drive
Dynamic circuit layer input drive signal, the drive circuit layer drive the OLED display device display figure according to the driving signal
Picture, wherein the driving signal includes data-signal, scanning signal and power supply voltage signal.In conjunction with Fig. 3, each sub-pixel
Driving circuit be set in the drive circuit layer, the driving unit 102 is by data line Data input data signal, institute
It states driving unit 102 and scanning signal is inputted by scan line Scan, the driving unit 102 passes through power bus input power electricity
Press signal.
In conclusion a kind of OLED display panel 101 provided by the invention and OLED display, by the OLED
The first power bus 1a and second source bus 2a are configured in display panel 101, and first sub-pixel 1 is made to be electrically connected to institute
It states the first power bus 1a and obtains the first driving voltage from the first power bus 1a, second sub-pixel 2 is electrically
It is connected to the second source bus 2a and obtains the second driving voltage, second source bus from the second source bus 2a
Second driving voltage of 2a supply is greater than the first driving voltage of the first power bus 1a supply, compensates the first sub-pixel 1 and the
The luminance difference of two sub-pixels 2 makes the brightness of entire special-shaped viewing area 100 keep in balance, avoids the brightness in different zones
Difference generates visual crenellated phenomena.
It should be noted that, in this document, relational terms such as first and second and the like are used merely to a reality
Body or operation are distinguished with another entity or operation, are deposited without necessarily requiring or implying between these entities or operation
In any actual relationship or order or sequence.Moreover, the terms "include", "comprise" or its any other variant are intended to
Non-exclusive inclusion, so that the process, method, article or equipment including a series of elements is not only wanted including those
Element, but also including other elements that are not explicitly listed, or further include for this process, method, article or equipment
Intrinsic element.In the absence of more restrictions, the element limited by sentence "including a ...", it is not excluded that
There is also other identical elements in process, method, article or equipment including the element.
The above is only the specific embodiment of the application, it is noted that for the ordinary skill people of the art
For member, under the premise of not departing from the application principle, several improvements and modifications can also be made, these improvements and modifications are also answered
It is considered as the protection scope of the application.
Claims (9)
1. a kind of OLED display panel, including special-shaped viewing area, which is characterized in that the abnormity viewing area includes central viewing area
Domain and transition display area are provided with multiple first sub-pixels, the side of the central display area in the central display area
Edge includes stepped region, and multiple second sub-pixels are provided in the stepped region and form the transition display area；Wherein, described
The first power bus and second source bus are configured in OLED display panel, first sub-pixel is electrically connected to described the
One power bus simultaneously obtains the first driving voltage from first power bus, and second sub-pixel is electrically connected to described
Second source bus simultaneously obtains the second driving voltage from the second source bus, and the area of second sub-pixel is less than institute
The area of the first sub-pixel is stated, the second driving voltage provided in the second source bus is greater than on first power bus
The first driving voltage provided.
2. OLED display panel according to claim 1, which is characterized in that include head end in the central display area
And/or end mutually not concordant two adjacent the first sub-pixels of row to form the stepped region.
3. OLED display panel according to claim 1, which is characterized in that be connected on first power bus a plurality of
First power distribution cable, the first power distribution cable described in each correspond to a column first sub- picture in the central display area
Element, it is total to be electrically connected to first power supply that each column first sub-pixel is connected to the first power distribution cable described in same
Line.
4. OLED display panel according to claim 3, which is characterized in that the both ends of the first power distribution cable described in each
It is electrically connected respectively with first power bus.
5. OLED display panel according to claim 1, which is characterized in that be connected in the second source bus a plurality of
Second source branch line, each described second sub-pixel are electrically connected to second electricity by a second source branch line
Source bus.
6. -5 any OLED display panel according to claim 1, which is characterized in that the transition display area include with
The first adjacent boundary, first boundary do not have arc-shaped boundary profile to the central display area.
7. OLED display panel according to claim 6, which is characterized in that the circumferential profile of the abnormity viewing area is circle
Shape.
8. OLED display panel according to claim 7, which is characterized in that first power bus and second electricity
Source bus is respectively the round walks wire shaped around the special-shaped viewing area, and first power bus is located at the second source
The inside of bus.
9. a kind of OLED display, which is characterized in that aobvious including driving unit and OLED a method as claimed in any one of claims 1-8
Show panel, the OLED display panel includes drive circuit layer and the OLED display device that is connected in the drive circuit layer,
The driving unit is connect with the drive circuit layer, and the driving unit is to the drive circuit layer input drive signal, institute
It states drive circuit layer and drives the OLED display device to show image according to the driving signal.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810812816.2A CN108986741A (en) | 2018-07-23 | 2018-07-23 | A kind of OLED display panel and OLED display |
| PCT/CN2018/114161 WO2020019569A1 (en) | 2018-07-23 | 2018-11-06 | Oled display panel and oled display apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810812816.2A CN108986741A (en) | 2018-07-23 | 2018-07-23 | A kind of OLED display panel and OLED display |
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| Publication Number | Publication Date |
|---|---|
| CN108986741A true CN108986741A (en) | 2018-12-11 |
Family
ID=64550172
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810812816.2A Pending CN108986741A (en) | 2018-07-23 | 2018-07-23 | A kind of OLED display panel and OLED display |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN108986741A (en) |
| WO (1) | WO2020019569A1 (en) |
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| CN115311948A (en) * | 2022-08-29 | 2022-11-08 | 惠科股份有限公司 | Special-shaped display panel and display device |
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| CN114694580B (en) * | 2022-03-31 | 2023-07-04 | 武汉天马微电子有限公司 | Display panel, driving method thereof and display device |
| CN115311948A (en) * | 2022-08-29 | 2022-11-08 | 惠科股份有限公司 | Special-shaped display panel and display device |
| US11953792B2 (en) | 2022-08-29 | 2024-04-09 | HKC Corporation Limited | Irregularly-shaped display panel and display device |
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| WO2020019569A1 (en) | 2020-01-30 |
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Application publication date: 20181211 |