CN113299697B - Display panel - Google Patents
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- CN113299697B CN113299697B CN202110494018.1A CN202110494018A CN113299697B CN 113299697 B CN113299697 B CN 113299697B CN 202110494018 A CN202110494018 A CN 202110494018A CN 113299697 B CN113299697 B CN 113299697B
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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
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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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Abstract
The embodiment of the invention discloses a display panel; the display panel comprises a plurality of pixel units, wherein at least one light-emitting unit in the pixel units comprises a first type light-emitting device and a second type light-emitting device; the first type light-emitting device and the second type light-emitting device have the same light-emitting color, and the light-emitting color gamut ranges of the first type light-emitting device and the second type light-emitting device are different. According to the embodiment of the invention, the first type light-emitting device and the second type light-emitting device which are set in different light-emitting color gamut ranges are added, and the light-emitting devices in different color gamuts are matched with each other, so that the display of different display color gamuts can be realized, and the display effect is improved.
Description
Technical Field
The invention relates to the field of display, in particular to a display panel.
Background
In recent years, as compared with a liquid crystal display panel, an OLED (Organic Light-Emitting semiconductor) display panel has advantages of being lighter and thinner, having good display effect, having high resolution, and being flexible, so that the OLED display panel has been rapidly developed in recent years.
Therefore, a display panel is needed to solve the above technical problems.
Disclosure of Invention
The embodiment of the invention provides a display panel, which can solve the technical problem that the display panel is required to have different display color gamuts in certain specific scenes so as to improve the display effect at present.
The embodiment of the invention provides a display panel, which comprises a plurality of pixel units, wherein at least one light-emitting unit in each pixel unit comprises a first type light-emitting device and a second type light-emitting device;
the first type light-emitting device and the second type light-emitting device have the same light-emitting color, and the light-emitting color gamut ranges of the first type light-emitting device and the second type light-emitting device are different.
In one embodiment, each of the pixel units includes a first light emitting unit, a second light emitting unit and a third light emitting unit, which have different light emitting colors; at least one of the first light-emitting unit, the second light-emitting unit and the third light-emitting unit comprises a first light-emitting device and a second light-emitting device, and light-emitting materials of the first light-emitting device and the second light-emitting device are different.
In an embodiment, the first light emitting unit includes a first light emitting device, the second light emitting unit includes a second light emitting device, the third light emitting unit includes a third light emitting device, and the first light emitting device, the second light emitting device, and the third light emitting device are the first type light emitting device; the first light-emitting unit further comprises a fourth light-emitting device, the second light-emitting unit further comprises a fifth light-emitting device, and the fourth light-emitting device and the fifth light-emitting device are the second type light-emitting devices.
In an embodiment, the first light emitting device and the second light emitting device constitute a first light emitting device layer of the display panel, and the fourth light emitting device and the fifth light emitting device constitute a second light emitting device layer of the display panel; wherein the third light emitting device is located on the first light emitting device layer or the second light emitting device layer.
In one embodiment, the first light emitting device layer and the second light emitting device layer are disposed in the same layer.
In an embodiment, the first light emitting device layer is disposed in a different layer from the second light emitting device layer.
In an embodiment, the display panel includes a first anode layer, the first light emitting device layer on the first anode layer, a first cathode layer on the first light emitting device layer, an insulating layer on the first cathode layer, a second anode layer on the insulating layer, the second light emitting device layer on the second anode layer, a second cathode layer on the second light emitting device layer.
In an embodiment, the display panel includes a first anode layer, the first light emitting device layer on the first anode layer, a shared cathode layer on the first light emitting device layer, the second light emitting device layer on the shared cathode layer, a second anode layer on the second light emitting device layer.
In one embodiment, the light emitting devices of the second type have a larger light emitting area than the light emitting devices of the first type, and the light emitting devices of the second type have a larger light emitting color gamut than the light emitting color gamut of the light emitting devices of the first type.
In one embodiment, the display panel includes a central region and an edge region located at the periphery of the central region, the first type light emitting device is located in the central region and the edge region, and the second type light emitting device is located in the central region; wherein the light emitting devices of the second type have a larger emission gamut than the light emitting devices of the first type.
According to the embodiment of the invention, the first type light-emitting device and the second type light-emitting device which are set in different light-emitting color gamut ranges are added, and the light-emitting devices in different color gamuts are matched with each other, so that the display of different display color gamuts can be realized, and the display effect is improved.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the description below are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic top view of a portion of a first structure of a display panel according to an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of a second structure of a display panel according to an embodiment of the present invention;
FIG. 3 is a schematic structural diagram of a third structure of a display panel according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of a fourth structure of a display panel according to an embodiment of the present invention;
fig. 5 is a schematic structural diagram of a fifth structure of a display panel according to an embodiment of the present invention;
fig. 6 is a schematic structural diagram of a sixth structure of a display panel according to an embodiment of the present invention;
fig. 7 is a schematic top view illustrating a seventh structure of a display panel according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without inventive step based on the embodiments of the present invention, are within the scope of protection of the present invention. Furthermore, it should be understood that the detailed description and specific examples, while indicating the present invention, are given by way of illustration and explanation only, and are not intended to limit the present invention. In the present invention, unless otherwise specified, the use of directional terms such as "upper" and "lower" generally means upper and lower in the actual use or operation of the device, particularly in the orientation of the figures of the drawings; while "inner" and "outer" are with respect to the outline of the device.
In recent years, as compared with a liquid crystal display panel, an OLED (Organic Light-Emitting semiconductor) display panel has advantages of being lighter and thinner, having good display effect, having high resolution, and being flexible, etc., so that the OLED display panel has been rapidly developed in recent years.
Referring to fig. 1 to 7, a display panel 100 according to an embodiment of the present invention includes a plurality of pixel units, at least one light emitting unit of the pixel units includes a first type light emitting device 410 and a second type light emitting device 420;
the first light emitting device 410 and the second light emitting device 420 have the same emission color, and the first light emitting device 410 and the second light emitting device 420 have different emission color gamut ranges.
According to the embodiment of the invention, the first type light-emitting device 410 and the second type light-emitting device 420 which are set in different light-emitting color gamut ranges are added, and the light-emitting devices in different color gamuts are matched with each other, so that the display of different display color gamuts can be realized, and the display effect is improved.
The technical solution of the present invention will now be described with reference to specific embodiments.
The display panel 100 includes a plurality of pixel units, at least one light emitting unit of the pixel units includes a first type light emitting device 410 and a second type light emitting device 420; the light emitting colors of the first type light emitting device 410 and the second type light emitting device 420 are the same, and the color gamut of the light emitting colors of the first type light emitting device 410 and the second type light emitting device 420 are different, please refer to fig. 7 specifically.
In this embodiment, each of the pixel units includes a first light emitting unit 310, a second light emitting unit 320, and a third light emitting unit 330, which have different light emitting colors; at least one of the first light emitting unit 310, the second light emitting unit 320, and the third light emitting unit 330 includes the first light emitting device 410 and the second light emitting device 420, and the first light emitting device 410 and the second light emitting device 420 have different light emitting materials, which is shown in fig. 3.
In this embodiment, the pixel unit may be an RGB pixel point, and an RGB pixel point includes an R sub-pixel point, a G sub-pixel point, and a B sub-pixel point, the pixel unit includes a plurality of light emitting units, one the light emitting unit may be an R sub-pixel point, a G sub-pixel point, or a B sub-pixel point, one the light emitting unit includes the first type light emitting device 410 and the second type light emitting device 420, for example, the light emitting unit is a red sub-pixel point and includes two types of light emitting devices that can emit red light, and the color gamut ranges of the two types of light emitting devices of the red light are different, so that the light emitting units with color gamuts are mutually matched, thereby realizing the display of different display gamuts and improving the display effect.
In this embodiment, the first type light emitting device 410 may emit light in the DCI-P3 color gamut, the second type light emitting device 420 may emit light in the BT2020 color gamut, and a material that may emit light in the BT2020 color gamut has a short lifetime, a high power consumption, and a small visual angle, but emits light in a large color gamut. The display color gamut can be improved by using the light emitting device capable of emitting light in the BT2020 color gamut in a specific environment, and the visual angle can be improved and the service life can be prolonged after the light emitting device is switched to the DCI-P3 color gamut. For example, the first light emitting device 510, the third light emitting device 530, and the fifth light emitting device 550 operate simultaneously, so that when some regions are displayed, a color gamut complementing effect can be achieved, and the reduction of the visible angle is small.
In this embodiment, the color coordinate interval of the light emitting device in the DCI-P3 color gamut is: the CIEy range for blue light is: 0.03-0.07, CIEx range of green light is: 0.22-0.26, and the CIEx range of red light is as follows: 0.67 to 0.69. The color coordinate interval of the light emitting device of the BT2020 color gamut is: the CIEx range for green light is: 0.15-0.19, and the CIEx range of red light is as follows: 0.698-0.708.
In this embodiment, the first light emitting unit 310 includes a first light emitting device 510, the second light emitting unit 320 includes a second light emitting device 520, the third light emitting unit 330 includes a third light emitting device 530, and the first light emitting device 510, the second light emitting device 520, and the third light emitting device 530 are the first type light emitting device 410; the first light emitting unit 310 further includes a fourth light emitting device 540, the second light emitting unit 320 further includes a fifth light emitting device 550, and the fourth light emitting device 540 and the fifth light emitting device 550 are the second type light emitting device 420, which is specifically referred to fig. 2 and fig. 3.
In the present embodiment, the first light emitting device 510 and the second light emitting device 520 constitute a first light emitting device layer 620 of the display panel 100, and the fourth light emitting device 540 and the fifth light emitting device 550 constitute a second light emitting device layer 660 of the display panel 100; wherein the third light emitting device 530 is positioned on the first light emitting device layer 620 or the second light emitting device layer 660. The first light emitting device layer 620 and the second light emitting device layer 660 may be switched to emit light, or emit light simultaneously, and may be controlled independently or collectively, specifically, refer to fig. 2 and 3.
In this embodiment, the first light emitting device layer 620 and the second light emitting device layer 660 are disposed at the same layer, specifically, refer to fig. 2. The structure arranged on the same layer can reduce the film thickness and improve the light-emitting brightness. In the same layer structure, the display panel further includes a first anode layer 610 and a first cathode layer 630 disposed on two sides of the first light emitting device layer 620 and the second device layer 660, just as an example.
In this embodiment, when the first light emitting device layer 620 and the second light emitting device layer 660 are disposed on the same layer, the light emitting colors of the first light emitting device 510, the second light emitting device 520, and the third light emitting device 530 are different, the light emitting colors of the fourth light emitting device 540 and the fifth light emitting device 550 are different, the light emitting colors of the first light emitting device 510 and the fourth light emitting device 540 are the same (for example, green light), the light emitting colors of the second light emitting device 520 and the fifth light emitting device 550 are the same (for example, red light), and the third light emitting device 530 is blue light; the display panel 100 includes a substrate 200, in which among a first light emitting device 510, a corresponding second light emitting device 520, a corresponding third light emitting device 530, a corresponding fourth light emitting device 540, and a corresponding fifth light emitting device 550, an orthogonal projection of the third light emitting device 530 on the substrate 200 is located in the middle of an orthogonal projection of the first light emitting device 510, the second light emitting device 520, the fourth light emitting device 540, and the fifth light emitting device 550 on the substrate 200, and a connection line between orthogonal projections of the first light emitting device 510 and the fourth light emitting device 540 on the substrate 200 intersects a connection line between orthogonal projections of the second light emitting device 520 and the fifth light emitting device 550 on the substrate 200, in particular, referring to fig. 1, wherein light emitting devices of different shapes may represent light emitting colors and light emitting shapes. The setting of this structure can improve the collective of an RGB pixel, and whatever the giving out light of colour gamut, all can form comparatively concentrated emitting pixel, guarantees pixel density.
In the present embodiment, the first light emitting device layer 620 and the second light emitting device layer 660 are disposed in different layers, specifically, refer to fig. 3 to fig. 6. The light emitting devices with different light emitting materials are arranged on different layers, meanwhile, the light emitting devices with the same light emitting color can be correspondingly arranged, the switching of different light emitting color gamut modes can be realized under the condition of not sacrificing pixel density, and the display effect is improved.
In this embodiment, the display panel 100 includes a first anode layer 610, the first light emitting device layer 620 located on the first anode layer 610, a first cathode layer 630 located on the first light emitting device layer 620, an insulating layer 640 located on the first cathode layer 630, a second anode layer 650 located on the insulating layer 640, the second light emitting device layer 660 located on the second anode layer 650, and a second cathode layer 670 located on the second light emitting device layer 660, please refer to fig. 3 and fig. 4 specifically. The switching of different light-emitting color gamut modes is realized by controlling the on or off of the light-emitting devices with different color gamuts through different cathodes and anodes, and the display effect is improved.
In this embodiment, the display panel 100 further includes an array substrate 210, and the array substrate 210 is located at a side close to the second light emitting device layer 660, please refer to fig. 4 specifically. The fourth light emitting device 540 and the fifth light emitting device 550 of the second light emitting device layer 660 are turned on under a required condition, and the first light emitting device 510, the second light emitting device 520 and the third light emitting device 530 of the first light emitting device layer 620 may be disposed at a side close to a light emitting surface (i.e., a side close to a user viewing side), so as to reduce light emitting loss of the first light emitting device layer 620.
In this embodiment, the insulating layer 640 is made of a material having high insulating properties and high light transmittance, and may be an inorganic material of any one or a combination of two or more of a silicon nitride compound, a silicon oxynitride, and a silicon oxynitride.
In this embodiment, the display panel 100 includes a first anode layer 610, the first light emitting device layer 620 located on the first anode layer 610, a shared cathode layer 680 located on the first light emitting device layer 620, the second light emitting device layer 660 located on the shared cathode layer 680, and a second anode layer 650 located on the second light emitting device layer 660, please refer to fig. 5 specifically. By sharing one cathode layer, the thickness of the film layer can be reduced, the electrical film layer is simplified, the mutual interference of the complex electrical film layers is avoided, and meanwhile, the voltage of the cathode layer 680 is uniformly shared, so that the brightness control of different light-emitting devices can be further improved.
In this embodiment, the light emitting area of the second type light emitting device 420 is larger than the light emitting area of the first type light emitting device 410, and the light emitting color gamut range of the second type light emitting device 420 is larger than the light emitting color gamut range of the first type light emitting device 410, as shown in fig. 6. In the figure, for example, the light emitting area of the fourth light emitting device 540 is larger than the light emitting area of the first light emitting device 510, and the light emitting area of the fifth light emitting device 550 is larger than the light emitting area of the second light emitting device 520, that is, the light emitting area of the light emitting device with a wider color gamut is larger than the light emitting area of the light emitting device with a narrower color gamut, so that when the light emitting device with a wider color gamut is switched, the display effect can be further enhanced.
In this embodiment, the display panel 100 includes a central region 710 and a peripheral region 720 located at the periphery of the central region 710, the first light emitting device 410 is located in the central region 710 and the peripheral region 720, and the second light emitting device 420 is located in the central region 710; the light emitting device of the second type 420 has a larger color gamut than the light emitting device of the first type 410, as shown in fig. 7. Namely, the light emitting device capable of providing a wider color gamut is arranged in the central area 710 of the display, the concentrated fixation of human eyes is generally in the central area 710, the color resolution of human eyes is weaker for the marginal area 720, the display brightness and the display visual angle are emphasized, only the light emitting device with the generally narrow color gamut is arranged in the marginal area 720, the process is simplified, the film thickness is reduced, the light transmittance is increased, the function light emission of the marginal area 720 of the central area 710 is balanced, and the display effect is improved.
In this embodiment, the number density of the second type light emitting devices 420 is gradually decreased in a direction from the center of the display panel 100 to the edge of the display panel 100. The concentrated fixation of the human eyes is generally in the central area 710 of the display panel 100, and for the marginal area 720, the color resolution of the human eyes is weak, and the display brightness and the display visual angle are emphasized, so that the light-emitting devices with wide color gamut are arranged on the display panel 100 in different number density, and the display effect is improved.
In this embodiment, the first anode layer 610, the first cathode layer 630, the second anode layer 650, the second cathode layer 670, the shared cathode layer 680, and the insulating layer 640 are all transparent materials.
In this embodiment, the display panel 100 further includes a substrate 200, an array substrate 210 located on the substrate 200, and a plurality of pixel units located on the array substrate 210, and refer to fig. 2 specifically.
In this embodiment, the light emitting units include an anode unit close to the array substrate 210, a light emitting material on the anode unit, and a cathode unit on the light emitting material. The light emitting material corresponds to the first type light emitting device 410 or the second type light emitting device 420. The light emitting units of different colors or different materials have similar structures, which are only illustrated by way of example and are not specifically limited.
In this embodiment, the array substrate 210 includes an active layer near one side of the substrate 200, a gate insulating layer on the active layer, a gate layer on the first insulating layer, an interlayer insulating layer on the gate layer, and a source drain layer on the interlayer insulating layer. The source drain layer is electrically connected with the active layer through the via hole, the active layer comprises a conductor unit and a channel unit, the conductor unit is located on two sides of the channel unit and is connected with the source drain layer, the conductor unit can be formed by conducting treatment on the active layer, and the resistance of the conductor unit is smaller than that of the channel unit.
In this embodiment, the display panel 100 further includes a pixel defining unit 560, and the pixel defining unit 560 is disposed on the same layer as the corresponding light emitting device, located between two corresponding adjacent light emitting devices, and configured to dispose the light emitting devices at intervals, specifically referring to fig. 2 and fig. 3.
According to the embodiment of the invention, the first type of light-emitting device 410 and the second type of light-emitting device 420 which are set to have different light-emitting color gamut ranges are added, and the light-emitting devices with different color gamuts are matched with each other, so that the display of different display color gamuts can be realized, and the display effect is improved.
The embodiment of the present invention further provides a manufacturing method of the display panel 100, including:
s100, providing a substrate 200;
s200, forming a plurality of light emitting units on the substrate 200, at least one of the light emitting units including a first type light emitting device 410 and a second type light emitting device 420;
the first light emitting device 410 and the second light emitting device 420 have the same color, and the color gamut of the first light emitting device 410 and the second light emitting device 420 is different from each other.
According to the embodiment of the invention, the first type of light-emitting device 410 and the second type of light-emitting device 420 which are set to have different light-emitting color gamut ranges are added, and the light-emitting devices with different color gamuts are matched with each other, so that the display of different display color gamuts can be realized, and the display effect is improved.
The technical solution of the present invention will now be described with reference to specific embodiments.
The manufacturing method of the display panel 100 includes:
s100, a substrate 200 is provided.
S200, forming a plurality of light emitting units on the substrate 200, at least one of the light emitting units including a first type light emitting device 410 and a second type light emitting device 420.
The following mainly describes a formation manner of the structural arrangement of the first type light emitting device 410 and the second type light emitting device 420.
In this embodiment, step S200 may include:
s210a, forming a first light emitting device 510, a second light emitting device 520, a third light emitting device 530, a fourth light emitting device 540, and a fifth light emitting device 550 on the same layer on the substrate 200.
In this embodiment, the first light emitting device 510, the second light emitting device 520, and the third light emitting device 530 are the first type light emitting device 410, the fourth light emitting device 540 and the fifth light emitting device 550 are the second type light emitting device 420, the first light emitting device 510 and the second light emitting device 520 form a first light emitting device layer 620 of the display panel 100, the fourth light emitting device 540 and the fifth light emitting device 550 form a second light emitting device layer 660 of the display panel 100, and the first light emitting device layer 620 and the second light emitting device layer 660 are disposed in the same layer. The structure arranged on the same layer can reduce the film thickness and improve the light-emitting brightness.
In this embodiment, step S200 may include:
s210b, forming a first anode layer 610 on the substrate 200, the first light emitting device layer 620 on the first anode layer 610, the first cathode layer 630 on the first light emitting device layer 620, an insulating layer on the first cathode layer 630, a second anode layer 650 on the insulating layer, the second light emitting device layer 660 on the second anode layer 650, and a second cathode layer 670 on the second light emitting device layer 660.
In this embodiment, the first and second light emitting devices 510 and 520 constitute a first light emitting device layer 620 of the display panel 100, and the fourth and fifth light emitting devices 540 and 550 constitute a second light emitting device layer 660 of the display panel 100.
In this embodiment, the on/off of the light emitting units of different color gamuts is controlled by different cathodes and anodes, so as to realize the switching of different light emitting color gamut modes and improve the display effect.
In this embodiment, step S200 may include:
s210c, forming a first anode layer 610 on the substrate 200, the first light emitting device layer 620 on the first anode layer 610, a shared cathode layer 680 on the first light emitting device layer 620, the second light emitting device layer 660 on the shared cathode layer 680, and a second anode layer 650 on the second light emitting device layer 660.
In this embodiment, the thickness of the film layer can be reduced, the electrical film layers are simplified, the mutual interference of the complex electrical film layers is avoided, and the voltage of the cathode layer 680 is uniformly shared, so that the brightness control of different light-emitting units can be further improved.
According to the embodiment of the invention, the first type light-emitting device and the second type light-emitting device which are set in different light-emitting color gamut ranges are added, and the light-emitting devices in different color gamuts are matched with each other, so that the display of different display color gamuts can be realized, and the display effect is improved.
An embodiment of the present invention further provides a display device, including any one of the display panels described above.
Please refer to any one of the embodiments and drawings of the display panel, which will not be described herein.
In this embodiment, the display device further includes an encapsulation layer and a cover plate layer on the display panel.
According to the embodiment of the invention, the first type light-emitting device and the second type light-emitting device which are set in different light-emitting color gamut ranges are added, and the light-emitting devices in different color gamuts are matched with each other, so that the display of different display color gamuts can be realized, and the display effect is improved.
The embodiment of the invention discloses a display panel; the display panel comprises a plurality of pixel units, wherein at least one light-emitting unit in the pixel units comprises a first light-emitting device and a second light-emitting device; the first type light-emitting device and the second type light-emitting device have the same light-emitting color, and the light-emitting color gamut ranges of the first type light-emitting device and the second type light-emitting device are different. According to the embodiment of the invention, the first type light-emitting device and the second type light-emitting device which are set in different light-emitting color gamut ranges are added, and the light-emitting devices in different color gamuts are matched with each other, so that the display of different display color gamuts can be realized, and the display effect is improved.
The foregoing detailed description is directed to a display panel provided by an embodiment of the present invention, and the principles and embodiments of the present invention are described herein by using specific examples, which are merely used to help understand the method and the core concept of the present invention; meanwhile, for those skilled in the art, according to the idea of the present invention, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present invention.
Claims (9)
1. A display panel is characterized by comprising a plurality of pixel units, wherein at least one light-emitting unit in the pixel units comprises a first type light-emitting device and a second type light-emitting device;
the display panel comprises a central area and a marginal area positioned at the periphery of the central area, wherein the first type of light-emitting device is positioned in the central area and the marginal area, and the second type of light-emitting device is positioned in the central area and has a light-emitting color gamut larger than that of the first type of light-emitting device.
2. The display panel according to claim 1, wherein each of the pixel units comprises a first light emitting unit, a second light emitting unit and a third light emitting unit which emit light with different colors;
at least one of the first light-emitting unit, the second light-emitting unit and the third light-emitting unit comprises a first light-emitting device and a second light-emitting device, and light-emitting materials of the first light-emitting device and the second light-emitting device are different.
3. The display panel according to claim 2, wherein the first light-emitting unit comprises a first light-emitting device, the second light-emitting unit comprises a second light-emitting device, the third light-emitting unit comprises a third light-emitting device, and the first light-emitting device, the second light-emitting device, and the third light-emitting device are the first type light-emitting device;
the first light-emitting unit further comprises a fourth light-emitting device, the second light-emitting unit further comprises a fifth light-emitting device, and the fourth light-emitting device and the fifth light-emitting device are the second type light-emitting devices.
4. The display panel according to claim 3, wherein the first light-emitting device and the second light-emitting device constitute a first light-emitting device layer of the display panel, and wherein the fourth light-emitting device and the fifth light-emitting device constitute a second light-emitting device layer of the display panel;
wherein the third light emitting device is located on the first light emitting device layer or the second light emitting device layer.
5. The display panel according to claim 4, wherein the first light emitting device layer and the second light emitting device layer are provided in the same layer.
6. The display panel according to claim 4, wherein the first light emitting device layer is provided in a different layer from the second light emitting device layer.
7. The display panel of claim 6, wherein the display panel comprises a first anode layer, the first light emitting device layer over the first anode layer, a first cathode layer over the first light emitting device layer, an insulating layer over the first cathode layer, a second anode layer over the insulating layer, the second light emitting device layer over the second anode layer, and a second cathode layer over the second light emitting device layer.
8. The display panel of claim 6, wherein the display panel comprises a first anode layer, the first light emitting device layer over the first anode layer, a shared cathode layer over the first light emitting device layer, the second light emitting device layer over the shared cathode layer, and a second anode layer over the second light emitting device layer.
9. The display panel according to claim 1, wherein the second type of light emitting device has a light emitting area larger than that of the first type of light emitting device, and wherein the second type of light emitting device has a light emitting color gamut larger than that of the first type of light emitting device.
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108962964A (en) * | 2018-08-01 | 2018-12-07 | 京东方科技集团股份有限公司 | Display panel, manufacturing method thereof, and display device |
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| CN107180847B (en) * | 2016-03-18 | 2021-04-20 | 京东方科技集团股份有限公司 | Pixel structure, organic light-emitting display panel and method of making the same, and display device |
| CN106531771A (en) * | 2016-12-27 | 2017-03-22 | 上海天马有机发光显示技术有限公司 | Display substrate, display panel, display device and pixel driving method |
| CN108665805B (en) * | 2017-04-01 | 2020-09-25 | 北京京东方显示技术有限公司 | Display panel, display device and virtual reality equipment |
| TW202446775A (en) * | 2017-04-07 | 2024-12-01 | 日商半導體能源研究所股份有限公司 | Light-emitting element, display device, electronic device, and lighting device |
| CN108511488A (en) * | 2018-03-01 | 2018-09-07 | 云谷（固安）科技有限公司 | The driving method of display panel and display device and display panel |
| CN110957347A (en) * | 2019-12-13 | 2020-04-03 | 苏州星烁纳米科技有限公司 | Light-emitting structure, display device and lighting device |
| CN112289906B (en) * | 2020-10-22 | 2021-12-28 | 深圳市华星光电半导体显示技术有限公司 | Display panel, method of making the same, and display device |
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| CN111769140A (en) * | 2020-06-23 | 2020-10-13 | 武汉华星光电半导体显示技术有限公司 | Display panel and display module |
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