Display panel and display device

By using only the first color light emitting device in the arc-shaped display area of ​​the curved screen and setting a quantum dot film layer, the problem of color offset in the arc-shaped display area is solved, and a more balanced color light output ratio and a reduction in the preparation cost are achieved.

CN115241241BActive Publication Date: 2025-03-25WUHAN TIANMA MICRO ELECTRONICS CO LTD
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Patent Information

Application Number
CN202210706606.1
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2022-06-21
Publication Date
2025-03-25
Estimated Expiration
2042-06-21

AI Technical Summary

Technical Problem

There is a color shift problem in the curved display area of ​​the existing curved screen, which affects the user's visual experience.

Method used

In the arc-shaped display area of ​​the display panel, only the first color light emitting device is used as the light source, and the second color and the third color quantum dot film are provided in the quantum dot film layer to ensure that the light output efficiency of different colors of light is basically the same, thereby maintaining the balance of the light output ratio.

Benefits of technology

By maintaining the balance of light output ratios of different colors, the color offset problem is avoided, the display effect of the display panel is improved, and the preparation cost is reduced.

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Abstract

The embodiment of the present application provides a display panel and a display device, wherein the display panel includes a main display area and a curved display area, wherein the curved display area is located at the edge of the main display area; the curved display area includes a first light-emitting device layer and a quantum dot film layer, wherein the first light-emitting device layer includes a plurality of first-color light-emitting devices, and the quantum dot film layer is located on the side of the first light-emitting device layer facing the light-emitting surface of the curved display area; wherein the quantum dot film layer includes a second-color quantum dot film and a third-color quantum dot film, wherein the second-color quantum dot film and the third-color quantum dot film are respectively arranged corresponding to different first-color light-emitting devices. In the embodiment of the present application, while realizing full-color display of the display panel, only the first-color light-emitting device is used as the light source in the curved display area, so that the light-emitting efficiency of different-color lights in the curved display area is basically the same, thereby avoiding the color deviation problem caused by the difference in light-emitting efficiency of different-color lights, thereby improving the display effect of the display panel.
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Description

[Technical field]

[0001] The present application relates to the field of display technology, and in particular to a display panel and a display device. [Background technology]

[0002] With the development of display technology, curved screens have become a hot spot favored by consumers due to their advantages such as good elasticity, non-fragile, beautiful appearance, and large display area. In the field of display technology, curved screens have become the focus of research for major manufacturers.

[0003] At present, the edge display area of ​​the curved screen is usually a curved display area. The curved display area in the prior art has a color cast problem, which affects the user's viewing experience. [Summary of the invention]

[0004] In view of this, embodiments of the present application provide a display panel and a display device to solve the above technical problems.

[0005] In a first aspect, an embodiment of the present application provides a display panel, which includes a main display area and a curved display area, wherein the curved display area is located at the edge of the main display area; the curved display area includes a first light-emitting device layer and a quantum dot film layer, wherein the first light-emitting device layer includes a plurality of first-color light-emitting devices, and the quantum dot film layer is located on the side of the first light-emitting device layer facing the light-emitting surface of the curved display area; wherein the quantum dot film layer includes a second-color quantum dot film and a third-color quantum dot film, and the second-color quantum dot film and the third-color quantum dot film are respectively arranged corresponding to different first-color light-emitting devices.

[0006] In an implementation of the first aspect, the main display area includes a second light-emitting device layer, which is prepared on the same layer as the first light-emitting device layer; wherein the second light-emitting device layer includes a plurality of first color light-emitting devices, second color light-emitting devices and third color light-emitting devices.

[0007] In an implementation of the first aspect, the quantum dot film layer also includes a first color quantum dot film, the first color quantum dot film is arranged corresponding to the first color light-emitting device, and the first color quantum dot film, the second color quantum dot film and the third color quantum dot film respectively correspond to different first color light-emitting devices.

[0008] In an implementation of the first aspect, the quantum dot film layer further includes a transparent film, which is arranged corresponding to the first color light-emitting device, and the first color light-emitting devices corresponding to the transparent film, the second color quantum dot film, and the third color quantum dot film are different.

[0009] In an implementation manner of the first aspect, the first color light emitting device is a blue light emitting device.

[0010] In an implementation manner of the first aspect, the arc-shaped display area further includes a packaging layer, and the quantum dot film layer is located between the packaging layer and the first light-emitting device layer.

[0011] In an implementation manner of the first aspect, the arc-shaped display area further includes an encapsulation layer, and the quantum dot film layer is located on a side of the encapsulation layer away from the first light-emitting device layer.

[0012] In an implementation manner of the first aspect, the arc-shaped display area further includes an encapsulation layer, the encapsulation layer includes a first sublayer and a second sublayer, and the quantum dot film layer is located between the first sublayer and the second sublayer.

[0013] In an implementation of the first aspect, the arc-shaped display area also includes a color resist layer, which is located on the side of the quantum dot film layer away from the first light-emitting device layer; the color resist layer includes a first color resist, a second color resist and a third color resist, the first color resist is arranged corresponding to the first color light-emitting device, the second color resist is arranged corresponding to the second color quantum dot film, and the third color resist is arranged corresponding to the third color quantum dot film, and the first color light-emitting devices corresponding to the first color resist, the second color quantum dot film and the third color quantum dot film are different.

[0014] In an implementation manner of the first aspect, the main display area includes a touch layer, and the arc display area does not include a touch layer.

[0015] In an implementation of the first aspect, the film layer contacted by a surface of the quantum dot film layer close to the first light-emitting device layer is the same as the film layer contacted by a surface of the touch layer close to the second light-emitting device layer.

[0016] In a second aspect, an embodiment of the present application provides a display device, comprising a display panel provided in the first aspect.

[0017] In the embodiment of the present application, while achieving full-color display of the display panel, only the first color light emitting device is used as the light source in the arc display area, so that the light extraction efficiency of different colors of light in the arc display area is basically the same, so that the light extraction ratio of different colors of light in the arc display area can be kept balanced, avoiding the color deviation problem caused by the difference in light extraction efficiency of different colors of light, thereby improving the display effect of the display panel. Moreover, by setting the first color light emitting device, the second color light emitting device and the third color light emitting device as the light source in the main display area, there is no need to set the quantum dot film layer in the main display area, which can reduce the preparation area of ​​the quantum dot film layer and effectively reduce the preparation cost of the display panel.

Brief Description of the Drawings

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 A schematic diagram of a display panel provided in an embodiment of the present application;

[0020] Figure 2 A schematic diagram of the structure of a curved display area provided in an embodiment of the present application;

[0021] Figure 3 A schematic diagram of the structure of another arc-shaped display area provided in an embodiment of the present application;

[0022] Figure 4 A schematic diagram of the structure of a display panel provided in an embodiment of the present application;

[0023] Figure 5 A schematic diagram of the structure of another arc-shaped display area provided in an embodiment of the present application;

[0024] Figure 6 A schematic diagram of the structure of another arc-shaped display area provided in an embodiment of the present application;

[0025] Figure 7 A schematic diagram of the structure of another arc-shaped display area provided in an embodiment of the present application;

[0026] Figure 8 A schematic diagram of the structure of another arc-shaped display area provided in an embodiment of the present application;

[0027] Fig. 9 A structural diagram of another display panel provided in an embodiment of the present application;

[0028] Fig.10 A method for preparing a display panel provided in an embodiment of the present application;

[0029] Fig.11 A schematic diagram of a display device provided in an embodiment of the present application. [Specific implementation method]

[0030] In order to better understand the technical solution of the present application, the embodiments of the present application are described in detail below with reference to the accompanying drawings.

[0031] It should be clear that the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present application.

[0032] The terms used in the embodiments of the present application are only for the purpose of describing specific embodiments, and are not intended to limit the present application. The singular forms "a", "said" and "the" used in the embodiments of the present application and the appended claims are also intended to include plural forms, unless the context clearly indicates other meanings.

[0033] It should be understood that the term "and / or" used in this article is only a description of the association relationship of associated objects, indicating that there can be three relationships. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

[0034] In the description of this specification, it is necessary to understand that the words such as "substantially", "approximately", "approximately", "about", "roughly", "substantially" and the like described in the claims and embodiments of the present application refer to what can be generally recognized within a reasonable process operation range or tolerance range, rather than an exact value.

[0035] It should be understood that although the terms first, second, etc. may be used to describe colors, color resists, light-emitting device layers, etc. in the embodiments of the present application, these colors, color resists, light-emitting device layers, etc. should not be limited to these terms. These terms are only used to distinguish colors, color resists, light-emitting device layers, etc. from each other. For example, without departing from the scope of the embodiments of the present application, the first color may also be referred to as the second color, and similarly, the second color may also be referred to as the first color.

[0036] The applicant in this case has provided a solution to the problems existing in the prior art through careful and in-depth research.

[0037] Figure 1 A schematic diagram of a display panel provided in an embodiment of the present application, Figure 2 A schematic diagram of the structure of a curved display area provided in an embodiment of the present application, Figure 3 A schematic diagram of the structure of another arc-shaped display area provided in an embodiment of the present application.

[0038] The present application embodiment provides a display panel 100, such as Figure 1 As shown, the display panel 100 includes a main display area AA and a curved display area BB, and the curved display area BB is located at the edge of the main display area AA.

[0039] The arc display area BB has a certain curvature. In the display panel 100 , the main display area AA may be a front display area of ​​the display panel 100 , and the arc display area BB may be a side display area of ​​the display panel 100 .

[0040] It should be noted that if Figure 1 As shown, the main display area AA may be a flat display area. In addition, the main display area AA may also be a curved display area with a certain curvature.

[0041] like Figure 2 As shown, the arc-shaped display area BB includes a first light-emitting device layer 10 and a quantum dot film layer 20. The first light-emitting device layer 10 includes a plurality of first-color light-emitting devices 11, and the first-color light-emitting devices 11 emit first-color light. The quantum dot film layer 20 is located on the side of the first light-emitting device layer 10 facing the light-emitting surface of the arc-shaped display area BB, and the first-color light emitted by the first-color light-emitting devices 11 is emitted through the quantum dot film layer 20.

[0042] The quantum dot film layer 20 includes a second color quantum dot film 21 and a third color quantum dot film 22 , and the second color quantum dot film 21 and the third color quantum dot film 22 are respectively arranged corresponding to different first color light emitting devices 11 .

[0043] Specifically, along the thickness direction Z of the arc-shaped display area BB, the second color quantum dot film 21 and the third color quantum dot film 22 overlap with different first color light-emitting devices 11. The first color light emitted by the first color light-emitting device 11 corresponding to the second color quantum dot film 21 is emitted through the second color quantum dot film 21, and the first color light emitted by the first color light-emitting device 11 corresponding to the third color quantum dot film 22 is emitted through the third color quantum dot film 22.

[0044] When the first color light is irradiated to the second color quantum dot film 21 corresponding to it, the second color quantum dots in the second color quantum dot film 21 can be excited to generate the second color light and emit it. When the first color light is irradiated to the third color quantum dot film 22 corresponding to it, the third color quantum dots in the third color quantum dot film 22 can be excited to generate the third color light and emit it.

[0045] In addition, in the arc display area BB, at least part of the first color light emitted by the first color light emitting device 11 will not pass through the second color quantum dot film 21 and the third color quantum dot film 22, so that the first color light can be emitted to ensure that the arc display area BB can perform full-color display.

[0046] In a technical solution of the embodiment of the present application, please continue to refer to Figure 2The quantum dot film layer 20 further includes a first color quantum dot film 23, and the first color quantum dot film 23 is arranged corresponding to the first color light emitting device 11. And the first color quantum dot film 23, the second color quantum dot film 21 and the third color quantum dot film 22 respectively correspond to different first color light emitting devices 11.

[0047] That is to say, along the thickness direction Z of the arc-shaped display area BB, the first color quantum dot film 23 can overlap with the first color light-emitting device 11 , and the first color light emitted by the first color light-emitting device 11 arranged corresponding to the first color quantum dot film 23 is emitted through the first color quantum dot film 23 .

[0048] When the first color light is irradiated to the first color quantum dot film 23 arranged correspondingly thereto, the first color quantum dots in the first color quantum dot film 23 can be excited to generate the first color light and emit it.

[0049] In another technical solution of the embodiment of the present application, Figure 4 As shown, the quantum dot film layer 20 further includes a transparent film 24, which is arranged corresponding to the first color light emitting device 11, and the first color light emitting devices 11 corresponding to the transparent film 24, the second color quantum dot film 21 and the third color quantum dot film 22 are different.

[0050] The first color light emitted by the first color light emitting device 11 arranged corresponding to the transparent film 24 can be directly emitted through the transparent film 24. That is, the light emitted by the first color light emitting device 11 and emitted through the transparent film 24 is the first color light.

[0051] Optionally, the first color light emitting device 11 is a blue light emitting device, the second color quantum dot film 21 is a red quantum dot film, the third color quantum dot film 22 is a green quantum dot film, and the first color quantum dot film 23 is a blue quantum dot film.

[0052] That is to say, in the arc display area BB, a blue light emitting device can be set as a light source to excite the red and green quantum dots in the quantum dot film layer 20. After receiving the blue light, the red quantum dots will excite and emit red light; after receiving the blue light, the green quantum dots will excite and emit green light; and part of the blue light will be directly emitted, thereby forming a full-color display.

[0053] It should be noted that the thickness direction Z of the curved display area BB can be multiple directions, and the direction in which the second color quantum dot film 21 overlaps with the corresponding first color light-emitting device 11, the direction in which the third color quantum dot film 22 overlaps with the corresponding first color light-emitting device 11, and the direction in which the first color quantum dot film 23 overlaps with the corresponding first color light-emitting device 11 can be different thickness directions Z. Figure 2 and Figure 3 The film layers in the arc-shaped display area BB are simplified by planarization, and are only used to illustrate the film layer structure of the arc-shaped display area BB.

[0054] In the prior art, light-emitting devices of various colors are usually used as light sources in the curved display area of ​​the display panel. Since the materials of light-emitting devices of different colors are different, their luminous efficiency and luminous brightness are usually different. As a result, when the user views the display panel at different viewing angles, the light output ratio of different colors of light in the curved display area cannot be kept balanced, which is prone to color cast problems and affects the user's viewing experience.

[0055] In the embodiment of the present application, while realizing full-color display of the display panel 100, only the first color light-emitting device 11 is used as the light source in the arc display area BB, so that the light output efficiency of different colors of light in the arc display area BB is basically the same, so that the light output ratio of different colors of light in the arc display area BB can be kept balanced, avoiding the color deviation problem caused by the difference in light output efficiency of different colors of light, thereby improving the display effect of the display panel 100.

[0056] Figure 4 A schematic diagram of the structure of a display panel provided in an embodiment of the present application.

[0057] In one embodiment of the present application, Figure 4 As shown, the main display area AA includes a second light emitting device layer A10 , and the second light emitting device layer A10 is prepared on the same layer as the first light emitting device layer 10 .

[0058] That is to say, the first light-emitting device layer 10 and the second light-emitting device layer A10 can belong to the same layer, and the film layer contacted by the surface of the first light-emitting device layer 10 facing the light-emitting surface of the display panel 100 can be the same as the film layer contacted by the surface of the second light-emitting device layer A10 facing the light-emitting surface of the display panel 100.

[0059] The second light-emitting device layer A10 includes a plurality of first color light-emitting devices 11 , second color light-emitting devices 12 and third color light-emitting devices 13 .

[0060] The first color light emitting device 11 included in the second light emitting device layer A10 and the first color light emitting device 11 included in the first light emitting device layer 10 of the arc display area BB may have the same structure and material. That is, the first color light emitting device 11 included in the second light emitting device layer A10 and the first color light emitting device 11 included in the first light emitting device layer 10 of the arc display area BB may be the same light emitting device.

[0061] The second color light emitting device 12 may be a red light emitting device, and the third color light emitting device 13 may be a green light emitting device.

[0062] In the embodiment of the present application, the first color light emitting device 11, the second color light emitting device 12 and the third color light emitting device 13 are set as light sources in the main display area AA, and the full color display of the main display area AA can be achieved without additionally setting the quantum dot film layer 20 in the main display area AA. Moreover, in the display panel 100, the display area of ​​the main display area AA is usually much larger than the display area of ​​the arc display area BB. The embodiment of the present application can reduce the preparation area of ​​the quantum dot film layer 20, and effectively reduce the preparation cost of the display panel 100.

[0063] It is understandable that if Figure 2 , Figure 3 and Figure 4 As shown, the display panel 100 further includes a base substrate P, the base substrate P includes a portion located in the main display area AA and a portion located in the arc display area BB, and the first light-emitting device layer 10 and the second light-emitting device layer A10 are both located on the same side of the base substrate P. In the arc display area AA, the quantum dot film layer 20 is located on a side of the first light-emitting device layer 10 away from the base substrate P.

[0064] Figure 5 A schematic diagram of the structure of another arc-shaped display area provided in an embodiment of the present application, Figure 6 A schematic diagram of the structure of another arc-shaped display area provided in an embodiment of the present application, Figure 7 A schematic diagram of the structure of another arc-shaped display area provided in an embodiment of the present application, Figure 8 A schematic diagram of the structure of another arc-shaped display area provided in an embodiment of the present application.

[0065] In one embodiment of the present application, Figure 5 As shown, the arc-shaped display area BB further includes an encapsulation layer 30, which is located on the side of the first light-emitting device layer 10 facing the light-emitting surface of the display panel 100, and is used to protect the electronic devices in the display panel 100 from water and oxygen corrosion in the external environment.

[0066] It should be noted that the encapsulation layer 30 may also extend to the main display area AA, that is, the encapsulation layer 30 may not only protect the electronic devices in the arc-shaped display area BB, but also protect the electronic devices in the main display area AA.

[0067] The quantum dot film layer 20 is located between the encapsulation layer 30 and the first light-emitting device layer 10 .

[0068] In another embodiment of the present application, Figure 6 As shown, the arc display area BB further includes an encapsulation layer 30, and the quantum dot film layer 20 is located on a side of the encapsulation layer 30 away from the first light emitting device layer 10. That is, the quantum dot film layer 20 can be located on a side of the encapsulation layer 30 facing the light emitting surface of the arc display area BB.

[0069] In another embodiment of the present application, Figure 7 As shown, the arc-shaped display area BB also includes an encapsulation layer 30, which includes a first sublayer 31 and a second sublayer 32. The second sublayer 32 is located on a side of the first sublayer 31 away from the first light-emitting device layer 10, and the quantum dot film layer 20 can be located between the first sublayer 31 and the second sublayer 32.

[0070] In addition, if Figure 8 As shown, the encapsulation layer may further include a third sublayer 33 , which is located on a side of the second sublayer 32 away from the first sublayer 31 , and the quantum dot film layer 20 is located between the second sublayer 32 and the third sublayer 33 .

[0071] It should be noted that Figure 5-Figure 8 The structural diagram shown in the figure simplifies the planarization of each film layer in the display panel 100 and is only used to illustrate the film layer structure of the display panel 100 .

[0072] Fig. 9 A structural diagram of another display panel provided in an embodiment of the present application.

[0073] In one embodiment of the present application, Fig. 9 As shown, the arc-shaped display area BB further includes a color resist layer 40 , and the color resist layer 40 is located on a side of the quantum dot film layer 20 away from the first light-emitting device layer 10 .

[0074] That is, the light emitted by the first color light emitting device 11 will also irradiate the color resist layer 40 after being emitted through the quantum dot film layer 20. It can be understood that the light irradiating the color resist layer 40 includes the first color light, the second color light and the third color light.

[0075] The color resist layer 40 includes a plurality of color resists 41, the plurality of color resists 41 include a first color resist 411, a second color resist 412 and a third color resist 413, the first color resist 411 is arranged corresponding to the first color light-emitting device 11, the second color resist 412 is arranged corresponding to the second color quantum dot film 21, the third color resist 413 is arranged corresponding to the third color quantum dot film 22, and the first color light-emitting devices 11 corresponding to the first color resist 411, the second color quantum dot film 21 and the third color quantum dot film 22 are different.

[0076] Among them, the first color resist 411 can be the same color as the corresponding first color light-emitting device 11, the second color resist 412 can be the same color as the corresponding second color quantum dot film 21, and the third color resist 413 can be the same color as the corresponding third color quantum dot film 22.

[0077] The first color light emitted by the first color light-emitting device 11 corresponding to the first color resistor 411 is emitted through the first color resistor 411, the first color light emitted by the first color light-emitting device 11 corresponding to the second color quantum dot film 21 is converted into the second color light after passing through the second color quantum dot film 21 and is emitted through the second color resistor 412, and the first color light emitted by the first color light-emitting device 11 corresponding to the third color quantum dot film 22 is converted into the third color light after passing through the third color quantum dot film 22 and is emitted through the third color resistor 413.

[0078] The color resist layer 40 further includes a black matrix 42 . The black matrix 42 is disposed between adjacent color resists 41 . The arrangement of the black matrix 42 can avoid the problem of optical interference between lights of different colors in the display panel 100 .

[0079] The color resist layer 40 provided in the embodiment of the present application can improve the light purity of different color lights, and further improve the display effect of the display panel 100 .

[0080] Please continue to refer to Fig. 9 The color resist layer 40 may also be located in the main display area AA, and the color resist layer 40 may extend from the main display area AA to the arc display area BB. In the main display area AA, the first color resist 411 is disposed corresponding to the first color light emitting device 11, the second color resist 412 is disposed corresponding to the second color light emitting device 12, and the third color resist 413 is disposed corresponding to the third color light emitting device 13.

[0081] Specifically, along the thickness direction M of the main display area AA, the first color resist 411 overlaps with the first color light emitting device 11, the second color resist 412 overlaps with the second color light emitting device 12, and the third color resist 413 overlaps with the third color light emitting device 13. The first color light emitted by the first color light emitting device 11 is emitted through the first color resist 411, the second color light emitted by the second color light emitting device 12 is emitted through the second color resist 412, and the third color light emitted by the third color light emitting device 13 is emitted through the third color resist 413.

[0082] It should be noted that when the main display area AA is a curved display area, the thickness direction M of the main display area AA can be multiple directions. The direction in which the first color resist 411 overlaps with the corresponding first color light emitting device 11, the direction in which the second color resist 412 overlaps with the corresponding second color light emitting device 12, and the direction in which the third color resist 413 overlaps with the corresponding third color light emitting device 13 can be different from each other. Fig. 9 The structural diagram shown in the figure simplifies the planarization of each film layer in the display panel 100 and is only used to illustrate the film layer structure of the display panel 100 .

[0083] In one embodiment of the present application, please continue to refer to Fig. 9, the main display area AA includes the touch layer 50, and the arc display area BB does not include the touch layer 50. That is, in the embodiment of the present application, the main display area AA can be used for both display and touch; the arc display area BB can be used for display but not for touch.

[0084] It is understandable that the arc-shaped display area BB is usually located at the edge of the display panel 100 , and the user may easily touch the arc-shaped display area BB by mistake during use.

[0085] In the embodiment of the present application, the arc-shaped display area BB is configured without a touch function, so that when the user touches the area by mistake, the display screen will not change, which is beneficial to improving the convenience of use for the user.

[0086] In addition, since the quantum dot film layer 20 is not provided in the main display area AA and the touch layer 50 is not provided in the curved display area BB, the number of film layers in the main display area AA and the curved display area BB can be kept the same, so that when the thickness uniformity of the display panel 100 is achieved, there is no need to additionally fill the planarization material, which is beneficial to reducing the preparation cost of the display panel 100.

[0087] Please continue to refer to Fig. 9 In one embodiment of the present application, the film layer contacted by the surface of the quantum dot film layer 20 close to the first light-emitting device layer 10 is the same as the film layer contacted by the surface of the touch layer 50 close to the second light-emitting device layer A10.

[0088] That is to say, the quantum dot film layer 20 in the arc display area BB and the touch layer 50 in the main display area AA can be disposed on the surface of the same film layer close to the light emitting surface of the display panel 100 .

[0089] Furthermore, the color resist layer 40 can be disposed on the side of the quantum dot film layer 20 and the touch layer 50 close to the light emitting surface of the display panel 100. The color resist layer 40 can improve the light purity of different color lights and reduce the reflection of external ambient light, thereby improving the display effect of the display panel 100.

[0090] Fig.10 A method for preparing a display panel is provided in an embodiment of the present application.

[0091] like Fig.10As shown, a preparation process of the display panel 100 having the main display area AA and the curved display area BB is as follows: first, a flat display panel 100 is fixed to a traction film 01, the bottom of the traction film 01 includes a silicone jig 02, and the traction film 01 is fixed to a robot 03; then, the robot 03 controls the traction film 01 to bend and thereby drives the flat display panel 100 to be initially bent in the direction of the silicone jig 02; then, an upper cover plate 200 having a specific curved shape is covered on the display panel 100, so that the display panel 100 is further bent to fit closely with the silicone jig 02 and the upper cover plate 200 to form a desired curved shape.

[0092] Fig.11 A schematic diagram of a display device provided in an embodiment of the present application.

[0093] The present application embodiment provides a display device 300, such as Fig.11 As shown, the display device 300 includes the display panel 100 provided in the above embodiment. The display device 300 provided in the embodiment of the present application may be a mobile phone, in addition, the display device 300 may also be an electronic device such as a computer or a television.

[0094] In the display device 300, while realizing full-color display of the display panel 100, only the first color light emitting device 11 is used as the light source in the arc display area BB, so that the light extraction efficiency of different color lights in the arc display area BB is basically the same, so that the light extraction ratio of different color lights in the arc display area BB can be kept balanced, avoiding the color deviation problem caused by the difference in light extraction efficiency of different color lights, thereby improving the display effect of the display panel 100. Moreover, the first color light emitting device 11, the second color light emitting device 12 and the third color light emitting device 13 are set as light sources in the main display area AA, so there is no need to set the quantum dot film layer 20 in the main display area AA, which can reduce the preparation area of ​​the quantum dot film layer 20 and effectively reduce the preparation cost of the display panel 100.

[0095] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present application shall be included in the scope of protection of the present application.

Claims

1. A display panel, characterized in that: The display panel includes a main display area and a curved display area, wherein the curved display area is located at the edge of the main display area; the curved display area includes: A first light emitting device layer, the first light emitting device layer comprising a plurality of first color light emitting devices; A quantum dot film layer, the quantum dot film layer being located on a side of the first light-emitting device layer facing the light-emitting surface of the arc-shaped display area; The quantum dot film layer includes a second color quantum dot film and a third color quantum dot film, and the second color quantum dot film and the third color quantum dot film are respectively arranged corresponding to different first color light-emitting devices.

2. The display panel according to claim 1, characterized in that: The main display area includes a second light-emitting device layer, and the second light-emitting device layer is prepared on the same layer as the first light-emitting device layer; The second light emitting device layer includes a plurality of first color light emitting devices, second color light emitting devices and third color light emitting devices.

3. The display panel according to claim 1, characterized in that: The quantum dot film layer also includes a first color quantum dot film, which is arranged corresponding to the first color light-emitting device, and the first color quantum dot film, the second color quantum dot film and the third color quantum dot film respectively correspond to different first color light-emitting devices.

4. The display panel according to claim 1, characterized in that: The quantum dot film layer further includes a transparent film, which is arranged corresponding to the first color light-emitting device, and the first color light-emitting devices to which the transparent film, the second color quantum dot film and the third color quantum dot film respectively correspond are different.

5. The display panel according to claim 1, characterized in that: The first color light emitting device is a blue light emitting device.

6. The display panel according to claim 1, characterized in that: The arc display area also includes The encapsulation layer, the quantum dot film layer is located between the encapsulation layer and the first light-emitting device layer.

7. The display panel according to claim 1, characterized in that: The arc display area also includes The encapsulation layer, the quantum dot film layer is located on a side of the encapsulation layer away from the first light-emitting device layer.

8. The display panel according to claim 1, characterized in that: The arc display area also includes The encapsulation layer includes a first sublayer and a second sublayer, and the quantum dot film layer is located between the first sublayer and the second sublayer.

9. The display panel according to claim 1, characterized in that: The arc-shaped display area further comprises a color resistance layer, and the color resistance layer is located on a side of the quantum dot film layer away from the first light-emitting device layer; The color resist layer includes a first color resist, a second color resist and a third color resist, the first color resist is arranged corresponding to the first color light-emitting device, the second color resist is arranged corresponding to the second color quantum dot film, and the third color resist is arranged corresponding to the third color quantum dot film, and the first color light-emitting devices corresponding to the first color resist, the second color quantum dot film and the third color quantum dot film are different.

10. The display panel according to claim 1, characterized in that: The main display area includes a touch layer, and the arc display area does not include the touch layer.

11. The display panel according to claim 10, characterized in that: The main display area includes a second light-emitting device layer, and the second light-emitting device layer is prepared on the same layer as the first light-emitting device layer; The film layer that the surface of the quantum dot film layer close to the first light emitting device layer contacts is the same as the film layer that the surface of the touch layer close to the second light emitting device layer contacts.

12. A display device, characterized in that: Comprising a display panel as described in any one of claims 1-11.

Citation Information

Patent Citations

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