CN107819023B - Organic light-emitting display panel and display device - Google Patents
Organic light-emitting display panel and display device Download PDFInfo
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- CN107819023B CN107819023B CN201711228629.1A CN201711228629A CN107819023B CN 107819023 B CN107819023 B CN 107819023B CN 201711228629 A CN201711228629 A CN 201711228629A CN 107819023 B CN107819023 B CN 107819023B
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- 239000003086 colorant Substances 0.000 claims abstract description 4
- 230000001788 irregular Effects 0.000 claims description 17
- 230000007423 decrease Effects 0.000 claims description 7
- 230000000694 effects Effects 0.000 abstract description 18
- 230000003313 weakening effect Effects 0.000 abstract description 5
- 206010066054 Dysmorphism Diseases 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 9
- 239000002184 metal Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 239000010409 thin film Substances 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000003321 amplification Effects 0.000 description 1
- 238000000889 atomisation Methods 0.000 description 1
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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
- H10K59/30—Devices specially adapted for multicolour light emission
- H10K59/35—Devices specially adapted for multicolour light emission comprising red-green-blue [RGB] subpixels
- H10K59/353—Devices specially adapted for multicolour light emission comprising red-green-blue [RGB] subpixels characterised by the geometrical arrangement of the RGB subpixels
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- H—ELECTRICITY
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- 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
- H10K59/121—Active-matrix OLED [AMOLED] displays characterised by the geometry or disposition of pixel elements
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Abstract
The invention discloses an organic light-emitting display panel and a display device, which are used for weakening the sawtooth phenomenon of the special-shaped edge of a special-shaped display panel and improving the display effect of the display panel near the special-shaped edge. This organic light emitting display panel is including having the display area of dysmorphism edge, and the display area includes first display area and the second display area that sets gradually along keeping away from special-shaped edge direction, and first display area includes a plurality of first sub-pixels that the array was arranged, and the second display area includes a plurality of pixel cell that the array was arranged, and every pixel cell includes the second sub-pixel of at least three kinds of colours, wherein: the second display area is provided with a plurality of pixel circuits, each second sub-pixel is electrically connected with the corresponding pixel circuit, and the first sub-pixel and the second sub-pixel with the same color share the same pixel circuit; the number of the first sub-pixels of the same color connected with the second sub-pixels of each color in the same pixel unit is the same.
Description
Technical Field
The present invention relates to the field of display technologies, and in particular, to an organic light emitting display panel and a display device.
Background
The OLED display panel has many advantages such as thin, light, wide viewing angle, active light emission, continuously adjustable light emission color, low cost, fast response speed, low energy consumption, low driving voltage, wide working temperature range, simple production process, high light emission efficiency, and flexible display, and is thus classified as a next generation display technology with great development prospects.
With the development of the OLED technology, the display device gradually tends to have a narrow frame or even no frame, and from the viewpoint of aesthetics and product quality, the shape of the display panel is not limited to the regular shape such as a rectangle, or the like, or a special application scenario, and the display panel is not limited to the regular shape such as a rectangle, or the like. The irregular display panel gradually appears in the field of vision of people. For example, four corners of the display panel are rounded, or a trench structure is disposed on the display panel for mounting devices such as a handset and a camera, and then a circular or other display panel is designed.
Because the edge of the special-shaped display panel is of a special-shaped structure, the pixel units cannot be fully paved in the whole display area, so that the pixel units form a stepped structure at the edge close to the display panel, the display area has a sawtooth feeling at the special-shaped edge, and the color cast defect exists, so that the quality of a display picture at the edge of the display panel is poor. In the prior art, the sawtooth phenomenon at the edge of the display panel is weakened by designing an algorithm of a driving chip and adopting an edge atomization method. The method can improve the saw tooth feeling of the special-shaped edge of the display panel to a certain extent, but the effect is poor, and the color saturation of the display panel near the special-shaped edge is poor, and the display effect is poor.
Disclosure of Invention
Embodiments of the present invention provide an organic light emitting display panel and a display device, so as to weaken the sawtooth phenomenon of the special-shaped edge of the special-shaped display panel and improve the effect of the display panel near the special-shaped edge.
The organic light-emitting display panel provided by the embodiment of the invention comprises a display area with an irregular edge, wherein the display area comprises a first display area and a second display area which are sequentially arranged along a direction far away from the irregular edge, the first display area comprises a plurality of first sub-pixels arranged in an array manner, the second display area comprises a plurality of pixel units arranged in an array manner, each pixel unit comprises second sub-pixels with at least three colors, and the method comprises the following steps:
the second display area is provided with a plurality of pixel circuits, each second sub-pixel is electrically connected with the corresponding pixel circuit, and the first sub-pixel and the second sub-pixel with the same color share the same pixel circuit; the number of the first sub-pixels of the same color connected with the second sub-pixels of each color in the same pixel unit is the same.
Optionally, in the second display area, the number of the first sub-pixels of the same color connected to the second sub-pixels of each pixel unit gradually closer to the first display area gradually increases.
Optionally, in the second display area, the second sub-pixel of the pixel unit close to the first display area is connected to the first sub-pixel of the same color close to the special-shaped edge in the first display area.
Optionally, the area of the pixel opening area of the first sub-pixel is smaller than the area of the pixel opening area of the second sub-pixel with the same color.
Optionally, in the first display area, the area of the pixel opening area of the first sub-pixel of the same color gradually distant from the second display area gradually decreases.
Specifically, in the first display area, the area of the pixel opening area of the first sub-pixel of the same color gradually far away from the second display area is reduced in an equal difference manner.
Optionally, the ratio of the area of the pixel opening area of each second sub-pixel to the area of the pixel opening area of the connected first sub-pixel in the same pixel unit is equal.
Optionally, the shaped edge includes a curved edge or a diagonal edge.
Optionally, the special-shaped edge is located at four corners of the display area.
In the prior art, due to size limitation, the first display area is difficult to arrange pixel circuits, so that the pixel units at the special-shaped edge of the organic light-emitting display panel form a larger step-shaped structure, and obvious saw tooth feeling exists during use.
In the embodiment of the invention, the first display area is provided with a plurality of first sub-pixels, and the first display area and the second sub-pixels with the same color share one pixel electrode. Therefore, the first display area is not provided with the pixel circuit, and the first sub-pixel can also be arranged, so that the phenomenon that the pixel units of the special-shaped edge of the organic light-emitting display panel form a step-shaped structure is reduced, and the saw-tooth feeling of the special-shaped edge is weakened. In addition, one pixel circuit drives the first sub-pixel and the second sub-pixel simultaneously, the first sub-pixel and the second sub-pixel shunt the corresponding pixel circuits, so that the luminous brightness is low, the sawtooth feeling of the special-shaped edge of the display panel can be further weakened, and the display effect of the organic light-emitting display panel can be improved by the scheme.
In the second display area, the number of the first sub-pixels of the same color connected with the second sub-pixels of each color in the same pixel unit is the same, so that the sum of the sub-pixels of each color driven by the pixel circuit in each pixel unit is equal, the improvement of the light-emitting control effect of the same pixel unit is facilitated, the design of a driving battery core is not required to be changed, a driving circuit is not required to be designed separately according to the scheme, and the process is simple.
The embodiment of the invention also provides a display device, which comprises the organic light-emitting display panel in any technical scheme.
The organic light-emitting display panel of the display device comprises a special-shaped edge, a first sub-pixel is arranged near the special-shaped edge, the first sub-pixel and a second sub-pixel far away from the special-shaped edge share the same pixel circuit, and therefore the phenomenon that a step-shaped structure is formed in a pixel unit of the special-shaped edge, and the sawtooth feeling of the special-shaped edge is weakened can be reduced. In addition, the first sub-pixel and the second sub-pixel shunt the corresponding pixel circuits, so that the luminous brightness is low, and the sawtooth feeling of the special-shaped edge of the display panel can be further weakened. Therefore, the display effect of the display device is good in the scheme.
Drawings
FIG. 1 is a schematic partial structure diagram of an organic light emitting display panel according to a first embodiment of the present invention;
fig. 2 is a partial cross-sectional view of an organic light emitting display panel according to a second embodiment of the present invention;
FIG. 3 is an enlarged view of a portion A shown in FIG. 2;
FIG. 4 is a schematic partial structure diagram of an OLED panel according to a third embodiment of the present invention;
FIG. 5 is a schematic partial structure diagram of an OLED panel according to a fourth embodiment of the present invention;
FIG. 6 is a schematic partial structure diagram of an OLED panel according to a fifth embodiment of the present invention;
FIG. 7 is a schematic structural diagram of an OLED panel according to a sixth embodiment of the present invention;
FIG. 8 is a schematic structural diagram of an OLED panel according to a seventh embodiment of the present invention;
FIG. 9 is a schematic structural diagram of an organic light emitting display panel according to an eighth embodiment of the present invention;
FIG. 10 is a schematic structural diagram of an organic light emitting display panel according to a ninth embodiment of the present invention;
fig. 11 is a schematic structural diagram of a display device according to a ninth embodiment of the invention.
Reference numerals:
1-a shaped edge;
2-a first display area;
21-a first sub-pixel;
3-a second display area;
31-pixel cells;
311-a second sub-pixel;
4-pixel circuit;
5-a thin film transistor;
6-a metal wire;
100-a display device;
200-an organic light emitting display panel;
7-notch.
Detailed Description
In order to weaken the sawtooth phenomenon of the special-shaped edge of the special-shaped display panel and improve the effect of the display panel near the special-shaped edge, the embodiment of the invention provides an organic light-emitting display panel and a display device. In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail by referring to the following examples.
As shown in fig. 1 to fig. 3, an organic light emitting display panel provided by an embodiment of the present invention includes a display area having a special-shaped edge 1, the display area includes a first display area 2 and a second display area 3 sequentially disposed along a direction away from the special-shaped edge 1, the first display area 2 includes a plurality of first sub-pixels 21 arranged in an array, the second display area 3 includes a plurality of pixel units 31 arranged in an array, each pixel unit 31 includes second sub-pixels 311 of at least three colors, wherein: the first display area 2 is not provided with pixel circuits, the second display area 3 is provided with a plurality of pixel circuits 4, each second sub-pixel 311 is electrically connected with the corresponding pixel circuit 4, and the first sub-pixel 21 and the second sub-pixel 311 with the same color share the same pixel circuit 4; the number of the same-color first sub-pixels 21 connected to the second sub-pixels 311 of each color in the same pixel unit 31 is the same.
In the prior art, the first display area close to the special-shaped edge is difficult to arrange the pixel circuits 4 due to size limitation, so that the pixel units of the organic light-emitting display panel at the special-shaped edge form a larger step-shaped structure, and obvious saw tooth feeling exists during use.
In the embodiment of the present invention, the first display region 2 is provided with a plurality of first sub-pixels 21, and shares one pixel circuit 4 with the second sub-pixel 311 of the same color. Therefore, the pixel circuit 4 is not disposed in the first display region 2, and the first sub-pixel 21 may also be disposed to reduce the step-like structure formed by the pixel unit 31 of the organic light emitting display panel at the irregular edge 1, thereby weakening the jaggy feeling of the irregular edge 1. In addition, one pixel circuit 4 drives the first sub-pixel 21 and the second sub-pixel 311 simultaneously, and the first sub-pixel 21 and the second sub-pixel 311 shunt the corresponding pixel circuit 4, so that the luminance of the display panel near the special-shaped edge is low, and the jaggy feeling of the special-shaped edge 1 of the display panel can be further weakened, and therefore the display effect of the organic light-emitting display panel can be improved.
In a specific embodiment, the anodes of the first sub-pixel 21 and the second sub-pixel 311 of the same color may be connected together by a metal trace to share the same pixel circuit 4, as shown in fig. 1; the first sub-pixel 21 and the second sub-pixel 311 may be connected to the pixel circuit 4 through metal traces, respectively. The specific connection mode can be designed according to the connection line of the actual product requirement.
Referring to fig. 2 and 3, the second display area 3 includes a pixel circuit 4 opposite to the second sub-pixel 311, and the first display area 2 is not provided with the pixel circuit. Each of the second sub-pixels 311 is directly electrically connected to one of the thin film transistors 5 in the pixel circuit 4, and the anode of the second sub-pixel 311 is connected to the thin film transistor 5 through the metal line 6. Specifically, the first subpixel 21 may be connected to the anode of the second subpixel 311 of the same color.
In the second display area 3, the number of the first sub-pixels 21 of the same color connected to the second sub-pixels 311 of each color in the same pixel unit 31 is the same, and then in each pixel unit 31, the sum of the sub-pixels of each color driven by the pixel circuit 4 is equal, which is beneficial to improving the light-emitting control effect of the same pixel unit 31, and the design of the driving electric core does not need to be changed, the pixel circuit 4 does not need to be designed separately for the scheme, and the process is simpler.
As shown in fig. 1, the first sub-pixel 21 and the second sub-pixel 311 sharing one pixel circuit are not limited to being located in the same row, that is, the first sub-pixel 21 and the second sub-pixel 311 in different rows may share the same pixel circuit, and the design may be specifically performed according to the arrangement of the first sub-pixel 21 and the second sub-pixel 311.
It should be noted that the drawings in the present application only schematically illustrate a partial structure of the organic light emitting display panel, and do not completely correspond to an actual product. For example, the boundary between the first display area 2 and the second display area 3 may be an irregular boundary; or the arrangement of the first sub-pixels 21 of the first display region 2 and the second sub-pixels 311 of the second display region 3 may be different from that shown in the figure.
Referring to fig. 4, in an alternative embodiment, in the second display area 3, the number of the first sub-pixels 21 of the same color connected to the second sub-pixels 311 of the pixel units 31 gradually close to the first display area 2 gradually increases.
In this embodiment, the closer to the special-shaped edge 1, the more the number of the first sub-pixels 21 connected to the second sub-pixel 311 is, the more obvious the shunting effect is, the lower the light-emitting luminance is, that is, the light-emitting luminance gradually decreases along the direction close to the special-shaped edge 1, and the display effect is better and the jaggy feeling at the special-shaped edge 1 is weaker when the light-emitting luminance suddenly changes is weakened.
In the embodiment shown in fig. 4, referring to the last row of sub-pixels in the figure, the pixel unit 31 adjacent to the first display area 2, each second sub-pixel 311 is connected with three first sub-pixels 21 with the same color, and each second sub-pixel 311 is connected with one first sub-pixel 21 with the same color of the pixel unit 31 farther away from the first display area 2.
With continued reference to fig. 4, in the second display area 3, the second sub-pixel 311 of the pixel unit 31 close to the first display area 2 is connected to the first sub-pixel 21 of the same color close to the irregular edge 1 in the first display area 2.
In this embodiment, the first sub-pixel 21 of the first display region 2 and the second sub-pixel 311 close to the special-shaped edge 1 share the same pixel circuit, so that the luminance of the sub-pixels of the display region in the vicinity of the special-shaped edge 1 is lower, which is beneficial to weakening the jaggy feeling at the special-shaped edge 1. In addition, in this embodiment, the first sub-pixel 21 closer to the irregular edge 1 and the second sub-pixel 311 closer to the irregular edge 1 share the same pixel circuit, and the wiring can be simplified when implementing this embodiment.
Referring to fig. 4, the area of the pixel opening area of the first sub-pixel 21 is smaller than that of the second sub-pixel 311 of the same color.
In this embodiment, the pixel opening area of the first sub-pixel 21 is smaller than that of the same-color second sub-pixel 311. More first sub-pixels 21 can be arranged in the first display area 2, and the density of the first sub-pixels 21 in the first display area 2 is increased, so that the step structure at the irregular edge 1 of the display panel is further reduced, and the saw tooth feeling is weakened.
Referring to fig. 5, in the first display area 2, the area of the pixel opening area of the first sub-pixel 21 of the same color gradually distant from the second display area 3 gradually decreases.
In this embodiment, the area of the opening area of the first sub-pixel 21 closer to the irregular edge 1 is smaller, the arrangement density is higher, the stepped structure at the irregular edge 1 of the display panel is smaller, the effect of weakening the saw tooth feeling is better, and the display effect of the organic light emitting display panel can be further improved.
With reference to fig. 5, in the first display area 2, the area of the pixel opening area of the first sub-pixel 21 of the same color gradually distant from the second display area 3 decreases with the same difference.
In this embodiment, the area of the opening area of the first sub-pixel 21 closer to the irregular edge 1 is smaller, the arrangement density is higher, the stepped structure at the irregular edge 1 of the display panel is smaller, and the effect of weakening the saw tooth feeling is better. In addition, in this embodiment, the pixel opening area of the first sub-pixel 21 of the same color is reduced in an equal difference, that is, the pixel opening area of the first sub-pixel 21 of the same color is uniformly changed, so that the display effect in the first display area 2 does not change suddenly, and the display effect of the display panel can be improved.
In a specific embodiment, as shown in fig. 5, the opening area of the first sub-pixel 21 closer to the special-shaped edge 1 is smaller, the opening area of the first sub-pixel 21 adjacent to the second display region 3 is equal to the opening area of the second sub-pixel 311, and the opening area of the first sub-pixel 21 decreases by one fourth of the area of the second sub-pixel 311 toward the special-shaped edge 1.
Referring to fig. 6, the ratio of the pixel opening area of each second sub-pixel 311 to the pixel opening area of the connected first sub-pixel 21 in the same pixel unit 31 is equal.
In this embodiment, compared to the second sub-pixel 311 of the non-shared pixel circuit, the area amplification factor of the sub-pixels driven by the pixel circuit is the same, so the control program does not need to be changed, and the light emitting luminance of each sub-pixel of the same pixel unit 31 is the same.
Referring to fig. 7 to 8, in an embodiment, the shape of the special-shaped edge 1 is not limited, and the special-shaped edge 1 may be a curved edge or a diagonal edge. In the organic light emitting display panel shown in fig. 7 and 8, the shaped edge 1 is a curved edge, and in the organic light emitting display panel shown in fig. 9, the shaped edge 1 is a diagonal edge. Specifically, the specific shape of the curved edge is not limited, for example, as shown in fig. 7 of the organic light emitting display panel, the curved edge may be a circular arc edge, and as shown in fig. 7 of the curved edge, the curved edge is a rounded edge; alternatively, the curved edge may be an irregular curved edge, such as the organic light emitting display panel shown in fig. 8.
The specific position of the special-shaped edge is not specifically limited, and may be located at four corners of the display area, or may be located at other positions of the display area, for example, if there is a gap 7 on the display area, there is an edge at the gap 7, and the edge may be a rectangular edge, or may be a special-shaped edge in the present invention, please refer to fig. 10.
Referring to fig. 7 and 9, the shaped edge 1 is located at the four corners of the display area.
Specifically, in this embodiment, the irregular edge 1 is located at four corners of the display area, for example, in the organic light emitting display panel in fig. 7, the four corners of the display area are rounded edges.
Referring to fig. 11, an embodiment of the invention further provides a display device 100, where the display device 100 includes the organic light emitting display panel 200 in any of the above technical solutions.
The organic light-emitting display panel of the display device comprises a special-shaped edge, a first sub-pixel is arranged near the special-shaped edge, the first sub-pixel and a second sub-pixel far away from the special-shaped edge share the same pixel circuit, and therefore the phenomenon that a step-shaped structure is formed in a pixel unit of the special-shaped edge, and the sawtooth feeling of the special-shaped edge is weakened can be reduced. In addition, the first sub-pixel and the second sub-pixel shunt the corresponding pixel circuits, so that the luminous brightness is low, and the sawtooth feeling of the special-shaped edge of the display panel can be further weakened. Therefore, the display effect of the display device is good in the scheme.
Optionally, in the embodiment of the present invention, the specific type of the display device is not limited, and the display device may be a mobile phone, a display, a tablet computer, or a television. For example, the display device 100 shown in fig. 11 is a mobile phone.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (9)
1. An organic light-emitting display panel, comprising a display area having a special-shaped edge, wherein the display area comprises a first display area and a second display area sequentially arranged along a direction away from the special-shaped edge, the first display area comprises a plurality of first sub-pixels arranged in an array, the second display area comprises a plurality of pixel units arranged in an array, each pixel unit comprises second sub-pixels of at least three colors, and wherein:
the second display area is provided with a plurality of pixel circuits, each second sub-pixel is electrically connected with the corresponding pixel circuit, and the first sub-pixel and the second sub-pixel with the same color share the same pixel circuit; the number of the first sub-pixels of the same color connected with the second sub-pixels of each color in the same pixel unit is the same;
in the second display area, the number of the first sub-pixels of the same color connected to the second sub-pixels of each pixel unit gradually close to the first display area gradually increases.
2. The organic light emitting display panel according to claim 1, wherein the second sub-pixel of the pixel unit adjacent to the first display region in the second display region is connected to the same-color first sub-pixel adjacent to the irregular edge in the first display region.
3. The organic light emitting display panel of claim 1, wherein the pixel opening area of the first sub-pixel is smaller than the pixel opening area of the same-color second sub-pixel.
4. The organic light emitting display panel according to claim 3, wherein in the first display region, the area of the pixel opening area of the first sub-pixel of the same color gradually distant from the second display region gradually decreases.
5. The organic light emitting display panel according to claim 4, wherein in the first display region, pixel opening area equi-differences of the first sub-pixels of the same color gradually distant from the second display region decrease.
6. The organic light emitting display panel according to claim 1, wherein a ratio of a pixel opening area of each of the second sub-pixels to the connected first sub-pixel in the same pixel unit is equal.
7. The organic light emitting display panel according to any one of claims 1 to 6, wherein the shaped edge comprises a curved edge or a diagonal edge.
8. The organic light emitting display panel of claim 7, wherein the shaped edges are located at four corners of the display area.
9. A display device comprising the organic light-emitting display panel according to any one of claims 1 to 8.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201711228629.1A CN107819023B (en) | 2017-11-29 | 2017-11-29 | Organic light-emitting display panel and display device |
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| CN201711228629.1A CN107819023B (en) | 2017-11-29 | 2017-11-29 | Organic light-emitting display panel and display device |
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| CN107819023B true CN107819023B (en) | 2020-09-25 |
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