CN107887424B - Display panel and display device - Google Patents
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- CN107887424B CN107887424B CN201711240139.3A CN201711240139A CN107887424B CN 107887424 B CN107887424 B CN 107887424B CN 201711240139 A CN201711240139 A CN 201711240139A CN 107887424 B CN107887424 B CN 107887424B
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- 238000005516 engineering process Methods 0.000 description 3
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- 239000011248 coating agent Substances 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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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
- G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
- G09F9/33—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements being semiconductor devices, e.g. diodes
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Abstract
The invention relates to the technical field of display, and discloses a display panel and a display device, which are used for improving the display uniformity of the display panel. The display panel comprises a first area and a second area, the first area comprises a first display area and a first frame area located on the periphery of the first display area, the second area comprises a second display area, the number of any row of sub-pixels in the first display area is less than that of any row of sub-pixels in the second display area, and the display panel comprises: the first area comprises a plurality of rows of first sub-pixels, at least one row of the plurality of rows of first sub-pixels comprises a first display sub-pixel and a first virtual sub-pixel, the first display sub-pixel is positioned in the first display area, the first virtual sub-pixel is positioned in the first frame area, and the first virtual sub-pixel comprises a pixel circuit and is always in a dark state during display; in the direction from the first area to the second area, the number of the first display sub-pixels in each row of the first sub-pixels is gradually increased, and the number of the first virtual sub-pixels in each row of the first sub-pixels is gradually decreased.
Description
Technical Field
The present invention relates to the field of display technologies, and in particular, to a display panel and a display device.
Background
An Organic Light-Emitting Diode (OLED) display device is a self-luminous display, has the characteristics of lightness, thinness, high chromaticity, wide viewing angle, high response speed and the like, and has a great development prospect in the technical field of display. With the development of the technology, the OLED display device gradually develops toward a narrow frame, a high screen ratio, and a light and thin structure to meet the requirements of users. However, as the demand for display devices is more and more diversified, the shape of the display panel is not limited to a regular shape such as a rectangle, and a display panel having a special shape gradually appears in the field of view of people. How to make the display brightness of the anisotropic display panel more uniform becomes a problem to be solved urgently by those skilled in the art.
Disclosure of Invention
The embodiment of the invention provides a display panel and a display device, which are used for improving the display uniformity of the display panel.
The embodiment of the invention provides a display panel, which comprises a first area and a second area, wherein the first area comprises a first display area and a first frame area positioned at the periphery of the first display area, the second area comprises a second display area, the number of any row of sub-pixels in the first display area is less than that of any row of sub-pixels in the second display area, and the display panel comprises:
the first region comprises a plurality of rows of first sub-pixels, at least one row of the plurality of rows of first sub-pixels comprises a first display sub-pixel and a first virtual sub-pixel, the first display sub-pixel is positioned in the first display area, the first virtual sub-pixel is positioned in the first frame area, the first virtual sub-pixel comprises a pixel circuit and is always in a dark state when displayed;
in a direction from the first area to the second area, the number of the first display sub-pixels in each row of the first sub-pixels is gradually increased, and the number of the first virtual sub-pixels in each row of the first sub-pixels is gradually decreased.
In the foregoing embodiment, optionally, in the first region, a ratio between a difference between numbers of first sub-pixels in any two adjacent rows and a number of first sub-pixels in any one of the two adjacent rows is less than or equal to 10%.
In the foregoing embodiment, optionally, in the first region, the number of the first sub-pixels in any two rows is equal.
In the foregoing embodiment, optionally, the first region includes N rows of pixel groups arranged in sequence, where the pixel group includes M rows of the first sub-pixels, N, M are positive integers, N is greater than or equal to 1, and M > 1, where the number of the M rows of the first sub-pixels in at least one row of the pixel groups is distributed in an arithmetic progression.
In any of the above embodiments, optionally, an edge of the first display area is in an arc shape or a zigzag shape.
In the above embodiment, optionally, the edge of the first frame region is linear.
In the above embodiment, optionally, the display panel includes two first regions, and a first opening region is disposed between the two first regions.
In the foregoing embodiment, optionally, an area of the first virtual sub-pixel is larger than an area of the first display sub-pixel.
In the above embodiment, optionally, the first sub-pixel includes an organic light emitting diode, and the organic light emitting diode in the first virtual sub-pixel does not include an anode.
In the display panel provided in the embodiment of the present invention, in the first area, the first display area is an irregular display area, the number of sub-pixels in any row of the irregular display area is less than that in the second display area, and the number of first display sub-pixels of each row of the first sub-pixels is gradually increased along the direction from the first area to the second area; in the embodiment of the invention, the first virtual sub-pixels are arranged in the first frame area corresponding to the first sub-pixels of each row, and the number of the first virtual sub-pixels of the first sub-pixels of each row is gradually reduced, so that the circuit load of the first sub-pixels of each row is increased, the circuit load of the first sub-pixels of each row is uniform, and the display uniformity of the display panel is improved.
The embodiment of the invention also provides a display device which comprises the display panel in any embodiment.
In the display device provided in the embodiment of the present invention, in the first area of the display panel, the first dummy sub-pixels are disposed in the first frame area corresponding to the first sub-pixels in each row, and the number of the first dummy sub-pixels in each row of the first sub-pixels is gradually decreased, so that the circuit load of the first sub-pixels in each row is increased, and the circuit load of the first sub-pixels in each row is relatively uniform, thereby improving the display uniformity of the display device.
Drawings
FIG. 1 is an enlarged view of a portion of a slot of a display panel according to the related art;
FIG. 2 is a schematic diagram of a display panel according to an embodiment of the present invention;
FIG. 3 is an enlarged view of a portion of the first structure A-A of FIG. 2;
FIG. 4 is a schematic diagram of a first structure of a first region according to an embodiment of the present invention;
FIG. 5 is a second structural diagram of the first region according to the embodiment of the present invention;
FIG. 6 is a schematic diagram of a third structure of the first region according to the embodiment of the present invention;
FIG. 7 is a diagram illustrating a fourth structure of the first region according to the embodiment of the present invention;
FIG. 8 is a schematic diagram of a display device according to an embodiment of the invention.
Reference numerals:
the related art part is as follows:
01-pixels;
02-scanning line;
03-a data line;
the invention comprises the following parts:
10-a display panel;
11-R type corner;
12-slotting;
13-a first sub-pixel;
14-groups of pixels;
131-a first display sub-pixel;
132-a first virtual sub-pixel;
20-display device.
Detailed Description
In order to improve the display uniformity of the display panel, embodiments of the invention provide a display panel and a display device. A detailed description will be given below of a specific implementation of a display panel and a display device according to an embodiment of the present invention with reference to the accompanying drawings. It should be noted that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that the drawings in the embodiments of the present invention are only provided to illustrate the connection relationship and the relative position between the structures, and do not indicate the size and the area of each structure.
With the development of display technology, the demand of people for display devices is more and more diversified, the shape of a display panel is not limited to regular shapes such as a rectangle, and a special-shaped display panel gradually appears in the visual field of people. The shaped display panel is typically designed in a shape other than a regular rectangle, such as a convex polygon, a concave polygon, a circle, a ring, and so on.
The inventor finds that, in the special-shaped display panel in the related art, because the display panel has R-shaped corners and the slots located at the sides, the pixels 01 near the edges of the slots are distributed in a step-like manner as shown in fig. 1, so that the scanning lines 02 and the data lines 03 at the edges of the slots are distributed more complicatedly, and the loads are different from each other, so that the gray scales of the pixels 01 located at the edges of the slots are greatly different, and thus the display uniformity of the display panel is poor, and the display effect is poor; in addition, corresponding to the fluting of different shapes, the pixel 01 that is close to the fluting edge distributes also differently, in display panel's manufacture process, needs the evaporation coating mask of design different shapes to make corresponding pixel pattern to make display panel's manufacturing cost is higher.
As shown in fig. 2 and fig. 3, an embodiment of the present invention provides a display panel 10, which includes a first area (shown as an area I in fig. 2) and a second area (shown as an area II in fig. 2), where the first area includes a first display area (shown as an area III in fig. 2) and a first frame area (shown as an area IV in fig. 2) located at a periphery of the first display area, and the second area includes a second display area, and a number of sub-pixels in any row in the first display area is less than a number of sub-pixels in any row in the second display area, where:
the first region comprises a plurality of rows of first sub-pixels 13, at least one row of the plurality of rows of first sub-pixels 13 comprises a first display sub-pixel 131 and a first virtual sub-pixel 132, the first display sub-pixel 131 is located in the first display region, the first virtual sub-pixel 132 is located in the first frame region, the first virtual sub-pixel 132 comprises a pixel circuit and is always in a dark state when being displayed;
in the direction from the first area to the second area, the number of the first display sub-pixels 131 in each row of the first sub-pixels 13 gradually increases, and the number of the first dummy sub-pixels 132 in each row of the first sub-pixels 13 gradually decreases.
In the display panel 10 provided in the embodiment of the present invention, in the first area, the first display area is a special-shaped display area, as shown in fig. 2, the first display area has a slot 12, the number of any row of sub-pixels of the first display area is less than that of any row of sub-pixels of the second display area, and the number of the first display sub-pixels 131 of each row of the first sub-pixels 13 is gradually increased along the direction from the first area to the second area; in the embodiment of the present invention, corresponding to the first sub-pixels 13 in each row, the first virtual sub-pixels 132 are disposed in the first frame area, and the number of the first virtual sub-pixels 132 in each row of the first sub-pixels 13 is gradually reduced, so that the circuit load of the first sub-pixels 13 in each row is increased, and the circuit load of the first sub-pixels 13 in each row is relatively uniform, thereby improving the display uniformity of the display panel.
In the above embodiment, optionally, in the first region, a ratio between a difference between the numbers of the first sub-pixels 13 in any two adjacent rows and the number of the first sub-pixels 13 in any one of the two adjacent rows is less than or equal to 10%. When the gradient of the display brightness change of the display device is larger than 10%, the human eyes can observe the brightness change more clearly. In the display panel 10 of the embodiment of the invention, in the first display area, because the ratio of the difference between the number of the first sub-pixels 13 in any two adjacent rows to the number of the first sub-pixels 13 in any one of the two adjacent rows is less than or equal to 10%, under the limit of the range, when the first display area is in the display working state, the display brightness of the first sub-pixels 13 in two adjacent rows is relatively uniform, so that the phenomenon of sudden change of brightness observed by human eyes is improved, and the display uniformity of the display panel 10 is further improved.
In the above-described embodiment, specifically, the specific arrangement manner of the plurality of rows of first sub-pixels 13 of the first region is not limited.
As shown in fig. 4 and 5, in an embodiment of the present invention, optionally, the number of the first sub-pixels 13 in any two rows in the first area is equal. In this embodiment, the number of the first sub-pixels 13 in each row of the first area is equal, so that the circuit loads corresponding to the first sub-pixels 13 in each row are equal, thereby improving the phenomenon that capacitance compensation needs to be performed on the pixel circuit. Specifically, the rows of first sub-pixels 13 in the first region may be arranged with both ends flush, as shown in fig. 4, which may make the manufacturing process of the display device simpler; alternatively, the first regions may be arranged stepwise in a direction toward the second regions, as shown in fig. 5.
In another embodiment of the present invention, as shown in fig. 6, optionally, the first area includes N rows of pixel groups 14 arranged in sequence, where the pixel group 14 includes M rows of first sub-pixels 13, N, M both being positive integers, and N ≧ 1, M > 1, and the number of the M rows of first sub-pixels 13 in at least one row of pixel groups 14 is distributed in an arithmetic progression. In the embodiment, the first display area has R-shaped corners 11 and slots 12, the number of the M rows of the first sub-pixels 13 is distributed in an arithmetic progression, and the circuit load corresponding to each row of the first sub-pixels 13 is correspondingly distributed in an arithmetic progression, so that the power supply of each row of the first sub-pixels 13 is more uniformly changed. In this embodiment, the number of the first display sub-pixels of the plurality of rows of the first sub-pixels 13 in the first region increases in an arithmetic progression, and the number of the first dummy sub-pixels 132 of the plurality of rows of the first sub-pixels 13 decreases in an arithmetic progression.
As shown in fig. 7, in the above embodiment, optionally, the first region includes N rows of pixel groups 14 arranged in sequence, where the pixel group 14 includes M rows of first sub-pixels 13, N, M both being positive integers, and N > 1, and M > 1, where the number of the M rows of first sub-pixels 13 in the pixel group 14 is equal, and the number of the first sub-pixels 13 in the N rows of pixel groups 14 increases in an equal-difference number sequence along the direction from the first region to the second region.
In any of the above embodiments, the specific shape of the edge of the first display area is not limited, for example, the edge of the first display area may be arc-shaped; alternatively, the edge of the first display area may be in a zigzag shape. In the above embodiments, optionally, the edge of the first frame region is linear. In the embodiment, the first frame region is linear, and when the display panel 10 is manufactured, the encapsulation layer encapsulates the display panel along the linear edge of the first frame region, thereby simplifying the manufacturing process of the display device and reducing the manufacturing cost of the display device.
In the embodiment of the present invention, the specific shape of the display panel 10 is not limited, for example, optionally, the display panel 10 includes two first regions, and a first opening region is disposed between the two first regions.
In the above embodiment, optionally, the area of the first virtual sub-pixel 132 is larger than the area of the first display sub-pixel 131. The first dummy sub-pixel 132 can increase the circuit load, and the display panel 10 with the structural design can make the circuit load of the first region and the second region more uniform, thereby improving the display uniformity of the display device.
In the above embodiments, the first dummy sub-pixel 132 is always in a dark state when displaying, and the specific implementation is not limited.
For example, in an embodiment of the present invention, optionally, the first sub-pixel 13 includes an organic light emitting diode, and the organic light emitting diode in the first dummy sub-pixel 132 does not include an anode. The organic light emitting diode of the first display sub-pixel 131 includes a display anode, a light emitting layer, and a display cathode sequentially arranged, and the organic light emitting diode of the first virtual sub-pixel 132 includes a virtual cathode; the display panel 10 further includes a pixel defining layer disposed in the first region and the second region, wherein the pixel defining layer of the first display region is located between the display anode and the display cathode, and the pixel defining layer of the first frame region is located on a side of the virtual cathode close to the display anode; in the first region, the pixel defining layer has a via hole corresponding to each first sub-pixel 13. The display panel 10 of the embodiment is applied to a display device, when the display device is in a display operation state, the pixel circuit supplies power to the first sub-pixels 13 in each row, and since the organic light emitting diodes in the first virtual sub-pixels 132 do not include anodes, the first virtual sub-pixels 132 do not emit light, thereby realizing the display of the special-shaped display panel 10.
In another embodiment of the present invention, optionally, the first sub-pixel 13 includes an anode, a light emitting layer and a cathode sequentially disposed; the display panel 10 further includes a pixel defining layer between the anode and the cathode, wherein the pixel defining layer of the first display region is provided with a via hole corresponding to each first display sub-pixel 131 and electrically connecting the anode and the cathode, and the pixel defining layer of the first frame region is not provided with a via hole. The display panel 10 of the embodiment is applied to a display device, when the display device is in a display operation state, the pixel circuit supplies power to the first sub-pixel 13 of each row, and since the anode and the cathode in the first virtual sub-pixel 132 are not electrically conducted, the first virtual sub-pixel 132 does not emit light, thereby realizing the display of the special-shaped display panel 10.
In any of the above embodiments, the specific type of the sub-pixel is not limited, and may be, for example, a red pixel, a green pixel, or a blue pixel.
As shown in fig. 8, an embodiment of the present invention further provides a display device 20 including the display panel 10 according to any of the above embodiments.
In the display device 20 provided in the embodiment of the present invention, in the first area of the display panel 10, the first dummy sub-pixels 132 are disposed in the first frame area corresponding to the first sub-pixels 13 in each row, and the number of the first dummy sub-pixels 132 in each row of the first sub-pixels 13 is gradually decreased, so that the circuit load of the first sub-pixels 13 in each row is increased, and the circuit load of the first sub-pixels 13 in each row is relatively uniform, thereby improving the display uniformity of the display device 20.
In the present embodiment, the specific type of the display device 20 is not limited, and may be, for example, a mobile phone, a tablet computer, a television, a display, and the like.
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 (10)
1. A display panel, comprising a first area and a second area, wherein the first area comprises a first display area and a first frame area located at the periphery of the first display area, the second area comprises a second display area, the first display area has a slot, and the number of sub-pixels in any row in the first display area is less than that in any row in the second display area, wherein:
the first region comprises a plurality of rows of first sub-pixels, at least one row of the plurality of rows of first sub-pixels comprises a first display sub-pixel and a first virtual sub-pixel, the first display sub-pixel is positioned in the first display area, the first virtual sub-pixel is positioned in the first frame area, the first virtual sub-pixel comprises a pixel circuit and is always in a dark state when displayed;
in a direction from the first area to the second area, the number of the first display sub-pixels in each row of the first sub-pixels is gradually increased, and the number of the first virtual sub-pixels in each row of the first sub-pixels is gradually decreased.
2. The display panel according to claim 1, wherein in the first region, a ratio between a difference in the number of first sub-pixels of any two adjacent rows and the number of first sub-pixels of any one of the two adjacent rows is less than or equal to 10%.
3. The display panel according to claim 1, wherein the number of the first sub-pixels in any two rows is equal in the first region.
4. The display panel according to claim 1, wherein the first region comprises N rows of pixel groups arranged in sequence, the pixel groups comprise M rows of the first sub-pixels, N, M are positive integers, N is greater than or equal to 1, and M is greater than 1, wherein the number of M rows of the first sub-pixels in at least one row of the pixel groups is distributed in an arithmetic progression.
5. The display panel according to any one of claims 1 to 4, wherein the edge of the first display region is curved or zigzag.
6. The display panel according to claim 5, wherein the edge of the first frame region is linear.
7. The display panel according to claim 1, wherein the display panel comprises two first regions, and a first opening region is provided between the two first regions.
8. The display panel of claim 1, wherein the area of the first virtual sub-pixel is larger than the area of the first display sub-pixel.
9. The display panel of claim 1, wherein the first sub-pixel comprises an organic light emitting diode and the organic light emitting diode in the first dummy sub-pixel does not comprise an anode.
10. A display device comprising the display panel according to any one of claims 1 to 9.
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| CN201711240139.3A CN107887424B (en) | 2017-11-30 | 2017-11-30 | Display panel and display device |
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| CN201711240139.3A CN107887424B (en) | 2017-11-30 | 2017-11-30 | Display panel and display device |
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| CN114387883B (en) * | 2019-04-30 | 2023-09-29 | 武汉天马微电子有限公司 | Display device and electronic equipment |
| CN111047973B (en) | 2019-12-09 | 2021-03-16 | 深圳市华星光电半导体显示技术有限公司 | Display panel, manufacturing method thereof and display device |
| CN111243524A (en) * | 2020-02-17 | 2020-06-05 | 京东方科技集团股份有限公司 | Display substrate, driving method thereof and display device |
| CN115516545A (en) * | 2021-04-23 | 2022-12-23 | 京东方科技集团股份有限公司 | Display substrate, display panel and display device |
| CN113838401B (en) * | 2021-10-08 | 2024-03-26 | 厦门天马微电子有限公司 | Display panel and display device |
| CN114283723A (en) * | 2021-12-21 | 2022-04-05 | Tcl华星光电技术有限公司 | Method for improving display crosstalk, display panel and electronic equipment |
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| JP2012103335A (en) * | 2010-11-08 | 2012-05-31 | Hitachi Displays Ltd | Display device |
| KR20160107396A (en) * | 2015-03-03 | 2016-09-19 | 삼성디스플레이 주식회사 | Organic light emitting diode display and method of manufacturing the same |
| KR102400506B1 (en) * | 2015-10-30 | 2022-05-23 | 엘지디스플레이 주식회사 | Deformed display divice |
| US10354578B2 (en) * | 2016-04-15 | 2019-07-16 | Samsung Display Co., Ltd. | Display device |
| CN106991990A (en) * | 2017-05-27 | 2017-07-28 | 上海天马有机发光显示技术有限公司 | Display panel and display device |
| CN107255883A (en) * | 2017-08-01 | 2017-10-17 | 京东方科技集团股份有限公司 | A kind of display base plate and display device |
| CN107705756B (en) * | 2017-11-22 | 2020-01-07 | 武汉天马微电子有限公司 | Display panel and display device |
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| 异形LED显示屏技术指标探讨;陆荣庆;《现代显示》;20120905;42-45 * |
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