CN112310123A - Display panel and display device - Google Patents
Display panel and display device Download PDFInfo
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- CN112310123A CN112310123A CN202011161632.8A CN202011161632A CN112310123A CN 112310123 A CN112310123 A CN 112310123A CN 202011161632 A CN202011161632 A CN 202011161632A CN 112310123 A CN112310123 A CN 112310123A
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L27/00—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate
- H01L27/02—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having at least one potential-jump barrier or surface barrier; including integrated passive circuit elements with at least one potential-jump barrier or surface barrier
- H01L27/12—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having at least one potential-jump barrier or surface barrier; including integrated passive circuit elements with at least one potential-jump barrier or surface barrier the substrate being other than a semiconductor body, e.g. an insulating body
- H01L27/1214—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having at least one potential-jump barrier or surface barrier; including integrated passive circuit elements with at least one potential-jump barrier or surface barrier the substrate being other than a semiconductor body, e.g. an insulating body comprising a plurality of TFTs formed on a non-semiconducting substrate, e.g. driving circuits for AMLCDs
- H01L27/124—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having at least one potential-jump barrier or surface barrier; including integrated passive circuit elements with at least one potential-jump barrier or surface barrier the substrate being other than a semiconductor body, e.g. an insulating body comprising a plurality of TFTs formed on a non-semiconducting substrate, e.g. driving circuits for AMLCDs with a particular composition, shape or layout of the wiring layers specially adapted to the circuit arrangement, e.g. scanning lines in LCD pixel circuits
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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
Abstract
The invention provides a display panel and a display device, wherein the display panel is provided with a display area, the display area comprises a plane area, four first stretchable areas and four second stretchable areas, each first stretchable area and each second stretchable area comprise a plurality of pixel units, and each pixel unit is connected through a metal wire. Each pixel unit is connected by a metal wire, so that the pixel unit of the first stretchable area and the pixel unit of the second stretchable area can be stretched, the stress of the display panel is reduced, and the performance of the display panel is improved.
Description
Technical Field
The invention relates to the technical field of display, in particular to a display panel and a display device.
Background
The waterfall screen is a combination of the traditional full screen design and the curved screen design, and the screen occupation ratio is further improved. The most remarkable characteristic of the waterfall screen is that the screen of the mobile phone extends towards the two sides of the middle frame all the way to the bottom of the middle frame. Different from the traditional curved screen, the waterfall screen requires higher curvature than the traditional display screen, and the curvature is close to 90 degrees to form the appearance effect of the waterfall screen, which is very shocking.
However, the curvature of 90 degrees may cause a large stress to the display screen, especially at the side and corner, which may cause damage to the film layer in the display panel, and thus affect the display effect of the display screen.
Disclosure of Invention
The invention provides a display panel and a display device, which are used for improving the display performance of the display panel.
The invention provides a display panel, which is provided with a display area and a non-display area surrounding the display area, wherein the display area comprises a plane area, four first stretchable areas and four second stretchable areas, the plane area comprises a first side edge, a second side edge arranged adjacent to the first side edge, a third side edge arranged opposite to the first side edge and a fourth side edge arranged opposite to the second side edge, the first side edge, the second side edge, the third side edge and the fourth side edge are respectively connected with one first stretchable area, one second stretchable area is connected between the adjacent first stretchable areas, each first stretchable area and each second stretchable area comprise a plurality of pixel units, and each pixel unit is connected with each other through a metal wire.
In the display panel provided by the invention, each pixel unit comprises a packaging part.
In the display panel provided by the invention, each pixel unit comprises a pixel area and a frame area surrounding the pixel area, and further comprises a substrate, a flat layer, a pixel definition layer, a light emitting part and a retaining wall; the flat layer is arranged on the substrate;
the pixel defining layer is arranged on the flat layer and comprises a first through hole which penetrates through the pixel defining layer so as to expose the flat layer of the pixel area;
the light emitting part is arranged in the first through hole;
the retaining wall is arranged on the flat layer of the frame area and surrounds the pixel definition layer on the frame area;
the encapsulation portion covers the pixel definition layer and the light emitting portion.
In the display panel provided by the present invention, the display panel further includes an anode trace disposed on the flat layer of the pixel region, the pixel defining layer further includes a second through hole, and the second through hole penetrates the pixel defining layer to expose the anode trace.
In the display panel provided by the present invention, the display panel further includes a cathode layer disposed on the pixel defining layer, the light emitting portion and the anode trace and electrically connected to the light emitting portion and the anode trace.
In the display panel provided by the invention, the display panel further comprises a source drain wire, the source drain wire is arranged between the substrate and the flat layer, the flat layer further comprises a first contact hole, the first contact hole penetrates through the flat layer of the pixel region to expose the source drain wire, and the anode wire is filled in the first contact hole to be electrically connected with the source drain wire.
In the display panel provided by the present invention, the display panel further includes a thin film transistor, the thin film transistor is disposed on the substrate of the pixel region, and a projection of the thin film transistor on the substrate is located in a projection of the light emitting portion on the substrate.
In the display panel provided by the invention, the thin film transistor comprises a gate insulation layer, an interlayer dielectric layer, a source electrode and a drain electrode, the gate insulation layer and the interlayer dielectric layer are sequentially stacked on the substrate, the source electrode and the drain electrode are arranged on the interlayer dielectric layer and are arranged at the same layer with the source electrode and the drain electrode, and the source electrode and the drain electrode are mutually insulated.
In the display panel provided by the present invention, the display panel further includes an anode layer, the light emitting portion is disposed on the anode layer, the planarization layer further includes a second contact hole, the second contact hole penetrates through the planarization layer to expose the drain electrode, and the anode layer is disposed on the planarization layer and electrically connected to the drain electrode through the second contact hole.
The invention also provides a display device which comprises the display panel.
The invention provides a display panel and a display device, wherein the display panel is provided with a display area and a non-display area surrounding the display area, the display area comprises a plane area, four first stretchable areas and four second stretchable areas, the plane area comprises a first side edge, a second side edge arranged adjacent to the first side edge, a third side edge arranged opposite to the first side edge and a fourth side edge arranged opposite to the second side edge, the first side edge, the second side edge, the third side edge and the fourth side edge are respectively connected with one first stretchable area, one second stretchable area is connected between the adjacent first stretchable areas, each first stretchable area and each second stretchable area comprise a plurality of pixel units, and each pixel unit is connected through a metal wire. In the invention, each pixel unit is connected by adopting a metal wire, so that the pixel unit of the first stretchable area and the pixel unit of the second stretchable area can be stretched, the stress of the display panel is further reduced, the display performance of the display panel is further improved, and the performance of the display panel is further improved.
Drawings
The technical solution and other advantages of the present invention will become apparent from the following detailed description of specific embodiments of the present invention, which is to be read in connection with the accompanying drawings.
Fig. 1 is a plan view of a display panel provided by the present invention.
Fig. 2 is a schematic diagram of a pixel unit of a display panel according to the present invention.
Fig. 3 is a cross-sectional view taken along line AB in fig. 1.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. 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.
Referring to fig. 1 and 2, fig. 1 is a plan view of a display panel according to the present invention. Fig. 2 is a schematic diagram of a pixel unit of a display panel according to the present invention. The present invention provides a display panel 10. The display panel 10 has a display area 20 and a non-display area 30 surrounding the display area 20. The display area 20 includes a planar area 21, four first stretchable areas 22, and four second stretchable areas 23. The planar area 21 includes a first side 211, a second side 212 adjacent to the first side 211, a third side 213 opposite to the first side 211, and a fourth side 214 opposite to the second side 212. One first stretchable zone 22 is attached to each of the first side edge 211, the second side edge 212, the third side edge 213 and the fourth side edge 214. One of the second stretchable regions 23 is connected between adjacent ones of the first stretchable regions 22. Each of the first stretchable region 22 and each of the second stretchable regions 23 includes a number of pixel units 40. Each of the pixel units 40 is connected to each other by a metal line 50.
In the present invention, the pixel units 40 that can be extended are disposed in the first stretchable region 22 and the second stretchable region 23, that is, can be stretched, so that when the first stretchable region 22 and the second stretchable region 23 are bent or stretched, the phenomenon of wrinkling and the damage of the display panel 10 due to stress do not occur, and thus the display effect of the display panel 10 is improved, and the performance of the display panel 10 is improved.
In one embodiment, each of the pixel units 40 includes a package portion 100.
In the present invention, each pixel unit 40 is packaged by using a packaging portion 100, that is, each pixel unit 100 is packaged separately, so that the damage of the pixel unit 40 caused by stress when the first stretchable region 22 and the second stretchable region 23 are bent or stretched is avoided, and the display panel does not have a wrinkle phenomenon, thereby improving the display effect of the display panel 10 and further improving the performance of the display panel 10.
In one embodiment, each of the pixel units 40 has a pixel region 41 and a frame region 42 surrounding the pixel region 41.
Referring to fig. 3, fig. 3 is a cross-sectional view taken along line AB in fig. 2. In one embodiment, each of the pixel units 40 further includes a substrate 200, a planarization layer 300, a pixel defining layer 400, a light emitting portion 500, and a dam 600.
The material of the substrate 200 may be polyimide, but is not limited thereto.
In one embodiment, the display panel 10 further includes a buffer layer 700. The buffer layer 700 is disposed between the substrate 200 and the planarization layer 300. Specifically, the buffer layer 700 is disposed on the substrate 200. The buffer layer is used for blocking water and oxygen and avoiding the damage of the water and oxygen to the display panel.
In one embodiment, the display panel 10 further includes a thin film transistor 800. The thin film transistor 800 is disposed on the substrate 200 of the pixel region 41. The projection of the thin film transistor 800 on the substrate 200 is located in the projection of the light emitting section 500 on the substrate 200.
Specifically, the thin film transistor 800 is disposed on the buffer layer 700. The thin film transistor 800 includes an active layer 810, a gate insulating layer 820, a gate layer 830, an interlayer dielectric layer 840, a source electrode 850, and a drain electrode 860. The active layer 810 is disposed on the buffer layer 700. The gate insulating layer 820 covers the buffer layer 700 and the active layer 810. The gate layer 830 is disposed on the gate insulating layer 820 and is located above the active layer 810. The interlayer dielectric layer 840 covers the gate insulating layer 820 and the gate layer 830. The interlayer dielectric layer 840 includes a first via 841 and a second via 842. The first via 841 penetrates the interlayer dielectric layer 840 and the gate insulating layer 820 to expose one side of the active layer 810. The second via 842 penetrates the interlayer dielectric layer 840 and the gate insulating layer 820 to expose the other side of the active layer 810. The source 850 is disposed on the interlayer dielectric layer 840 and filled in the first via 841 to be electrically connected to the active layer 810. The drain electrode 860 is disposed on the interlayer dielectric layer 840 and is filled in the second via hole 842 to be electrically connected to the active layer 810.
In an embodiment, the display panel 10 further includes a source/drain trace 910. The source/drain trace 910 is disposed between the substrate 200 and the planarization layer 300. Specifically, the source/drain trace 910 is disposed on the interlayer dielectric layer 840 and is disposed on the same layer as the source 850 and the drain 860. The source drain trace 910 is insulated from the source 850 and the drain 860.
The planarization layer 300 is disposed on the substrate 200. The material of the planar layer 300 is one or a combination of several of silicon nitride and silicon oxide. Specifically, the planarization layer 300 is disposed on the source 850, the drain 860, the interlayer dielectric layer 840, and the source/drain trace 910. The planarization layer 300 further includes a first contact hole 301 and a second contact hole 302. The first contact hole 301 penetrates through the planarization layer 300 of the pixel region 41 to expose the source/drain trace 910. The anode trace 910 is filled in the first contact hole 301 to electrically connect the source/drain trace 910. The second contact hole 302 penetrates the planarization layer 300 to expose the drain electrode 860.
In an embodiment, the display panel 10 further includes an anode trace 920. The anode trace 920 is disposed on the planarization layer 300 of the pixel region 41 and filled in the first contact hole 301 to electrically connect the source/drain trace 910. The anode trace 920 and the source-drain trace 910 form a trace layer 900.
In one embodiment, the display panel 10 further includes an anode layer 1000. The anode layer 1000 is disposed on the planarization layer 300 and electrically connected to the drain electrode 860 through the second contact hole 302.
The pixel defining layer 400 is disposed on the planarization layer 300. The pixel defining layer 400 includes a first via 401 and a second via 402. The first via hole 401 penetrates the pixel defining layer 400 to expose the anode layer 1000. The second via 402 penetrates the pixel defining layer 400 to expose the anode trace 920.
The light emitting part 500 is disposed in the first through hole 401. Specifically, the light emitting part 500 is disposed on the pixel defining layer 400 and filled in the first via hole 401 to electrically connect the anode layer 1000.
In one embodiment, the display panel 10 further comprises a cathode layer 1100. The cathode layer 1100 is disposed on the pixel defining layer 400, the light emitting part 500 and the anode trace 920, and electrically connects the light emitting part 500 and the anode trace 920.
In the present invention, the wiring layer 900 is disposed in the pixel region 41, and the wiring layer 900 is electrically connected to the light emitting part 500 through the cathode layer 1100, so as to reduce the frame of the cathode layer 1100, and further reduce the frame region 42 of the pixel unit 40, and further improve the display effect of the display panel 10, and further improve the performance of the display panel 10.
The retaining wall 600 is disposed on the flat layer 300 of the frame region 42 and surrounds the pixel defining layer 400 of the frame region 42. Specifically, the bank 600 is formed by the pixel defining layer 400 and the bank 610. The barricade adopts two kinds of structural layers to constitute, has improved the height of barricade, and then makes the independent route of water oxygen invasion lengthen, and then has improved display panel's display performance.
The encapsulation part 100 covers the pixel definition layer 400 and the light emitting part 500. Specifically, the encapsulation part 100 includes a first inorganic encapsulation part 110, an organic encapsulation part 120, and a second inorganic encapsulation part 130. The first inorganic encapsulation part 110 covers the interlayer dielectric layer 840, the planarization layer 300, the pixel definition layer 400, the cathode layer 1100, and the dam 600. The organic encapsulation part 120 covers the first inorganic encapsulation part 110 corresponding to the pixel defining layer 400 and the cathode layer 1100. The second inorganic sealing part 130 covers the first inorganic sealing part 110 and the organic sealing part 120. Because the retaining wall 600 is formed by two structures, the height of the retaining wall 600 is increased, so that the packaging frame of the packaging part 100 is narrowed, the narrow frame design is realized, and the screen occupation ratio of the display panel 10 is increased.
In the invention, the pixel units 40 in the first stretchable region 22 and the second stretchable region 23 are connected with the pixel units 40 by the metal wires 50, so that the pixel units 40 in the first stretchable region 22 and the second stretchable region 23 are of a stretchable structure, the stress of the display panel 10 during bending is reduced, the display panel 10 is prevented from being damaged, the display effect of the display panel 10 is improved, and the performance of the display panel is improved; each pixel unit 40 is packaged by using the single packaging part 100, so that stress applied to the display panel 10 during bending is reduced, and the frame area 42 of the pixel unit 40 is reduced, thereby improving the display effect of the display panel 10 and further improving the performance of the display panel 10; by disposing the wiring layer 900 in the pixel region 41 and electrically connecting the wiring layer 900 and the light emitting part 500 through the cathode layer 1100, the frame of the cathode layer 1100 is reduced, and the frame region 42 of the pixel unit 40 is reduced, so that the display effect of the display panel 10 is improved, and the performance of the display panel 10 is improved; the retaining wall 600 is formed by two structures, so that the height of the retaining wall 600 is increased, the packaging frame of the packaging part 100 is narrowed, the frame area 42 of the pixel unit 40 is narrowed, the narrow frame design is realized, and the screen occupation ratio of the display panel 10 is increased.
The present invention also provides a display device comprising the display panel 10 as described above.
The invention provides a display panel and a display device, wherein the display panel is provided with a display area and a non-display area surrounding the display area, the display area comprises a plane area, four first stretchable areas and four second stretchable areas, the plane area comprises a first side edge, a second side edge arranged adjacent to the first side edge, a third side edge arranged opposite to the first side edge and a fourth side edge arranged opposite to the second side edge, the first side edge, the second side edge, the third side edge and the fourth side edge are respectively connected with one first stretchable area, one second stretchable area is connected between the adjacent first stretchable areas, each first stretchable area and each second stretchable area comprise a plurality of pixel units, and the pixel units are connected by adopting bent metal wires. The pixel units are connected through the bent metal wires, so that stress applied to the pixel units during bending is reduced, and the display effect is improved.
The embodiments of the present invention are described in detail, and the principle and the embodiments of the present invention are explained by applying specific examples, and the descriptions of the above embodiments are only used to help understanding the technical solutions and the core ideas of the present invention; those of ordinary skill in the art will understand that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (10)
1. The display panel is characterized in that the display panel is provided with a display area and a non-display area surrounding the display area, the display area comprises a plane area, four first stretchable areas and four second stretchable areas, the plane area comprises a first side edge, a second side edge arranged adjacent to the first side edge, a third side edge arranged opposite to the first side edge and a fourth side edge arranged opposite to the second side edge, the first side edge, the second side edge, the third side edge and the fourth side edge are respectively connected with one first stretchable area, one second stretchable area is connected between the adjacent first stretchable areas, each first stretchable area and each second stretchable area comprise a plurality of pixel units, and each pixel unit is connected with each other through a metal wire.
2. The display panel of claim 1, wherein each of the pixel units comprises a package.
3. The display panel according to claim 2, wherein each of the pixel units includes a pixel region and a frame region surrounding the pixel region, each of the pixel units further includes a substrate, a planarization layer, a pixel defining layer, a light emitting portion, and a dam;
the flat layer is arranged on the substrate;
the pixel defining layer is arranged on the flat layer and comprises a first through hole which penetrates through the pixel defining layer so as to expose the flat layer of the pixel area;
the light emitting part is arranged in the first through hole;
the retaining wall is arranged on the flat layer of the frame area and surrounds the pixel definition layer on the frame area;
the encapsulation portion covers the pixel definition layer and the light emitting portion.
4. The display panel of claim 3, wherein the display panel further comprises an anode trace disposed on the planarization layer of the pixel region, and the pixel definition layer further comprises a second via penetrating the pixel definition layer to expose the anode trace.
5. The display panel according to claim 4, further comprising a cathode layer disposed on and electrically connecting the pixel defining layer, the light emitting portion, and the anode trace.
6. The display panel of claim 5, wherein the display panel further comprises a source drain trace disposed between the substrate and the planarization layer, the planarization layer further comprises a first contact hole penetrating the planarization layer of the pixel region to expose the source drain trace, and the anode trace is filled in the first contact hole to electrically connect the source drain trace.
7. The display panel according to claim 3, wherein the display panel further comprises a thin film transistor provided on a substrate of the pixel region, a projection of the thin film transistor on the substrate being in a projection of the light emitting portion on the substrate.
8. The display panel according to claim 7, wherein the thin film transistor includes a gate insulating layer, an interlayer dielectric layer, a source electrode, and a drain electrode, the gate insulating layer and the interlayer dielectric layer are sequentially stacked on the substrate, the source electrode and the drain electrode are disposed on the interlayer dielectric layer, the source drain electrode trace is disposed on the interlayer dielectric layer and disposed at the same layer as the source electrode and the drain electrode, and the source drain electrode trace is insulated from the source electrode and the drain electrode.
9. The display panel according to claim 8, wherein the display panel further comprises an anode layer, the light emitting portion is disposed on the anode layer, the planarization layer further comprises a second contact hole penetrating the planarization layer to expose the drain electrode, and the anode layer is disposed on the planarization layer and electrically connected to the drain electrode through the second contact hole.
10. A display device characterized in that it comprises a display panel according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011161632.8A CN112310123B (en) | 2020-10-27 | 2020-10-27 | Display panel and display device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011161632.8A CN112310123B (en) | 2020-10-27 | 2020-10-27 | Display panel and display device |
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| CN112310123A true CN112310123A (en) | 2021-02-02 |
| CN112310123B CN112310123B (en) | 2023-02-07 |
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| CN202011161632.8A Active CN112310123B (en) | 2020-10-27 | 2020-10-27 | Display panel and display device |
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| CN113689788A (en) * | 2021-08-12 | 2021-11-23 | 武汉华星光电半导体显示技术有限公司 | Curved surface display module |
| CN113724590A (en) * | 2021-08-24 | 2021-11-30 | 武汉华星光电半导体显示技术有限公司 | Stretchable display panel |
| WO2022227446A1 (en) * | 2021-04-28 | 2022-11-03 | 京东方科技集团股份有限公司 | Display apparatus and display panel thereof |
| WO2023082806A1 (en) * | 2021-11-11 | 2023-05-19 | 荣耀终端有限公司 | Display panel, display screen, and electronic device |
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| Publication number | Publication date |
|---|---|
| CN112310123B (en) | 2023-02-07 |
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