CN115331561B - Display module and display device - Google Patents
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- CN115331561B CN115331561B CN202211069065.2A CN202211069065A CN115331561B CN 115331561 B CN115331561 B CN 115331561B CN 202211069065 A CN202211069065 A CN 202211069065A CN 115331561 B CN115331561 B CN 115331561B
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- 230000009467 reduction Effects 0.000 abstract description 9
- 230000008859 change Effects 0.000 abstract description 8
- 239000012790 adhesive layer Substances 0.000 description 17
- 239000000463 material Substances 0.000 description 10
- 230000017525 heat dissipation Effects 0.000 description 5
- 239000000758 substrate Substances 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 4
- -1 polyethylene terephthalate Polymers 0.000 description 4
- 239000010409 thin film Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000013041 optical simulation Methods 0.000 description 3
- 229920003207 poly(ethylene-2,6-naphthalate) Polymers 0.000 description 3
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Classifications
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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
- G09F9/301—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 flexible foldable or roll-able electronic displays, e.g. thin LCD, OLED
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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
- G09F9/335—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 being organic light emitting diodes [OLED]
Abstract
The application provides a display module assembly and display device relates to and shows technical field for solve flexible display panel's the regional technical problem that luminance reduction and chromaticity change can appear in buckling. The display panel comprises a flexible display panel, a functional layer covering the light emitting side of the flexible display panel, and a cover plate arranged on the functional layer, wherein the flexible display panel and the functional layer are provided with a first display area and at least one second display area which are connected, and the second display area is bent in a direction far away from the cover plate; an optical structure is arranged between the light emitting side of the second display area and the cover plate, and the refractive index of the optical structure is smaller than that of the cover plate and smaller than that of the functional layer; in the first direction, the thickness of the optical structure gradually increases. The display module can alleviate the technical problems of the brightness reduction and the chromaticity change of the second display area.
Description
Technical Field
The embodiment of the application relates to the technical field of display, in particular to a display module and a display device.
Background
With the development of display technology, display devices such as mobile phones and tablet computers with higher screen occupation ratio are receiving attention. In the related art, a scheme of bending a display area of a flexible display panel is generally adopted, so that an image can be displayed on the edge of a display module, and the display device is enabled to realize borderless display, so that the screen occupation ratio of the display device is improved. However, in the display module adopting the above scheme, the technical problems of brightness reduction and chromaticity change occur in the bending region of the flexible display panel.
Disclosure of Invention
In view of the above, the embodiments of the present application provide a display module and a display device, so as to solve the technical problems that the brightness is reduced and the chromaticity is changed in the bending area of the display panel.
In order to achieve the above purpose, the embodiment of the present application provides the following technical solutions:
the first aspect of the embodiments of the present application provides a display module, including a flexible display panel, a functional layer covering a light emitting side of the flexible display panel, and a cover plate disposed on the functional layer, where the flexible display panel and the functional layer have a first display area and at least one second display area that are connected, and the second display area is bent in a direction away from the cover plate; an optical structure is arranged between the light emitting side of the second display area and the cover plate, and the refractive index of the optical structure is smaller than that of the cover plate and smaller than that of the functional layer; the thickness of the optical structure gradually increases along the first direction; the first direction is parallel to the first display area and perpendicular to the bending axis of the second display area.
The display module of this application embodiment, the light that the pixel sent in the second display area is in proper order through functional layer, optical structure and apron incident to the human eye. The interface between the functional layer and the optical structure is a curved surface because the second display area is bent; and along the first direction, the thickness of the optical structure is gradually increased; meanwhile, the refractive index of the optical structure is smaller than that of the functional layer and the cover plate, so that a lens structure is formed among the functional layer, the optical structure and the cover plate. Light rays emitted by pixels in the flexible display panel are deflected towards the direction of the first display area under the action of the lens structure and enter human eyes. Therefore, compared with the related art, the light received by the human eye is the light emitted by the pixels in the flexible display panel at a smaller angle. The smaller the light emitting angle of the light emitted by the pixel is, the smaller the brightness attenuation and the color deviation are, so that the technical problems of the brightness reduction and the chromaticity change of the second display area are solved.
In some possible implementations, the optical structure is an air layer.
In some possible implementations, the optical structure is a transparent solid dielectric layer.
In some possible implementations, the transparent solid dielectric layer is a first optical adhesive layer, and the first optical adhesive layer bonds the functional layer and the cover plate.
In some possible implementations, a surface of the cover plate, which contacts the optical structure, is a first curved surface bent toward the second display area.
In some possible implementations, a surface of the cover plate that contacts the optical structure is a first plane parallel to the first display area.
In some possible implementations, a surface of the cover plate facing away from the second display area is a second plane parallel to the first display area, or a second cambered surface bending toward the second display area.
In some possible implementations, the display module further includes a second optical glue layer located between the first display area and the cover plate, the second optical glue layer bonding the cover plate and the first display area and interfacing with the optical structure.
In some possible implementations, the functional layer includes a touch layer and a polarizing layer that are stacked on a light emitting side of the flexible display panel, and refractive indices of the touch layer and the polarizing layer are both greater than a refractive index of the optical structure.
A second aspect of the embodiments of the present application provides a display device, including a display module set as any one of the above.
The display device according to the embodiment of the present application, because of including any one of the above display modules, has the advantages of any one of the above display modules, and will not be described herein again.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, a brief description will be given below of the drawings that are needed in the embodiments or the prior art descriptions, and it is obvious that the drawings in the following description are some embodiments of the present application, and that other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic cross-sectional view of a display module according to the related art;
fig. 2 is a schematic top view of a display module in some implementations of the present application when the cover plate, the second optical adhesive layer, and the optical structure are hidden;
fig. 3 is a schematic top view of a display module according to another implementation of the present application when the cover plate, the second optical adhesive layer and the optical structure are hidden;
FIG. 4 is a schematic cross-sectional view of the structure at B-B in FIG. 3;
FIG. 5 is a reverse light path diagram of the display module of FIG. 4;
FIG. 6 is a schematic cross-sectional view of a portion B-B in accordance with other implementations of the present application;
FIG. 7 is a schematic cross-sectional view of a portion B-B in accordance with other implementations of the present application;
fig. 8 is a schematic diagram of the optical simulation result of the display module in fig. 6.
Reference numerals illustrate:
10. a flexible display panel;
110. a support layer;
111. a first support portion;
112. a second supporting part;
120. a heat dissipation layer;
130. a buffer layer;
20. a functional layer;
210. a touch layer;
220. a polarizing layer;
30. a cover plate;
310. a first cambered surface;
320. a first plane;
330. a second plane;
40. a second optical adhesive layer;
50. an optical structure;
510. transparent solid dielectric layer.
Detailed Description
The display module is a key component for displaying images in display devices such as mobile phones and tablet computers. In the related art, referring to fig. 1, a display module generally includes a flexible display panel 10, a functional layer 20 covering a light emitting side of the flexible display panel 10, and a cover plate 30 disposed on the functional layer 20. In order to increase the screen ratio of the display device, a scheme of bending the display areas of the flexible display panel 10 and the functional layer 20 is generally adopted. For example, as shown in fig. 1, the flexible display panel 10 and the functional layer 20 include a first display area AA1, a second display area AA2 and a non-display area NA connected to each other, and the second display area AA2 is bent, so that the non-display area NA is located on the backlight side of the first display area AA1. The cover plate 30 is adhered to the first display area AA1 and the second display area AA2 through the second optical adhesive layer 40. The refractive indices of the functional layer 20, the cover plate 30 and the second optical adhesive layer 40 are approximately equal. The second display area AA2 is located at the edge of the display module, and light emitted by the second display area AA2 sequentially passes through the functional layer 20, the second optical adhesive layer 40 and the cover plate 30 and then enters human eyes, so that the edge of the display module can display images, the display device can realize borderless display, and the screen occupation ratio of the display device is increased.
As described in the background art, the display module in the related art has the technical problems that the brightness of the bending area of the flexible display panel is reduced and the chromaticity is changed. The long-term study of the inventor finds that the reason is that when the display module displays an image, the image is watched from the forward direction of the display module, and for the second display area AA2, as the second display area AA2 bends, the light entering the human eyes is the light with larger luminous angle emitted by the pixels in the second display area AA 2. For the first display area AA1, the first display area AA1 is a plane, and light entering the human eye is light with a smaller light emitting angle emitted by the pixels in the first display area AA1. For example, as shown in fig. 1, the light emitting angle of the light entering the human eye from the second display area AA2 is α, and the light emitting angle of the light entering the human eye from the first display area AA1 is 0.
The larger the light emitting angle of the light emitted by the pixels in the flexible display panel is, the larger the luminance attenuation and the color deviation are, so that the luminance brightness and the chromaticity of the light emitted by the second display area AA2 are reduced and changed compared with those of the first display area AA1, namely the technical problems of luminance reduction and chromaticity change occur in the bending area of the flexible display panel. The light emission angle refers to an angle between the light and the normal direction of the flexible display panel 10.
To above-mentioned technical problem, the optical structure of refractive index lower than apron and functional layer is set up between functional layer and apron, and along the parallel the first display area and with the direction of the axis of buckling of second display area, optical structure's thickness increases gradually for form lens structure between functional layer, optical structure and the apron, this lens structure can make the less light of luminous angle of the pixel that the second display area sent to the direction deflection of first display area AA1, makes it get into the human eye, thereby alleviates the technical problem that the regional luminance of buckling of flexible display panel reduces and the chromaticity changes.
In order to make the above objects, features and advantages of the embodiments of the present application more comprehensible, the following description will make the technical solutions of the embodiments of the present application clear and complete with reference to the accompanying drawings in the embodiments of the present application. It will be apparent that the described embodiments are only some, but not all, of the embodiments of the present application. All other embodiments, based on the embodiments herein, which are within the scope of the protection of the present application, will be within the purview of one of ordinary skill in the art without the exercise of inventive faculty.
It should be noted that the dimensions and shapes of the various figures in the drawings do not reflect true proportions, and are intended to illustrate only the embodiments of the present application. And the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout.
In general, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature.
Referring to fig. 2, 3 and 4, the embodiment of the present application provides a display module, which includes a flexible display panel 10, a functional layer 20 covering a light emitting side of the flexible display panel 10, and a cover plate 30 disposed on the functional layer 20. The flexible display panel 10 is used for displaying images. The functional layer 20 is used for realizing other functions of the display module, such as touch control, anti-reflection, etc. The cover plate 30 is disposed on the functional layer 20, and is used for protecting the functional layer 20 and the flexible display panel 10, and preventing the functional layer 20 and the flexible display panel 10 from being damaged to affect the service life of the display module.
The light emitting side of the flexible display panel 10 refers to a side of the flexible display panel 10 capable of emitting light.
The flexible display panel 10 is used for displaying images, and has a bendable function. The flexible display panel 10 may be an organic light emitting diode (Organic Light Emitting Diode, abbreviated as OLED) display panel, for example. The flexible display panel 10 may include a flexible substrate and a display layer. The flexible substrate provides support for the layers above it, and the flexible substrate is bendable. Illustratively, the material of the flexible substrate may include at least one of Polyimide (PI for short), polyethylene terephthalate (Polyethylene Terephthalate PET for short), and polyethylene naphthalate (Polyethylene naphthalate PEN for short).
The display layer may include a driving array layer, a light emitting material layer, and a package layer sequentially stacked on the flexible substrate. The driving array layer has a plurality of thin film transistors regularly arranged. The luminous material layer is arranged on the driving array layer, the luminous material layer is provided with a plurality of pixels which are arranged in an array, and the pixel array is correspondingly arranged with the thin film transistor array and is electrically connected with the thin film transistor array so as to control the pixels through the thin film transistor, thereby realizing the display of images. The encapsulation layer is disposed on the luminescent material layer and is used for encapsulating the luminescent material layer, so as to prevent external moisture, oxygen and the like from entering the luminescent material layer to influence the display performance of the flexible display panel 10.
It is understood that the flexible display panel 10 may be another type of display panel with flexibility, and this will not be described in detail in the embodiments of the present application.
Referring to fig. 2 and 3, the flexible display panel 10 and the functional layer 20, which are stacked, have a first display area AA1 and at least one second display area AA2 connected, and the second display area AA2 is bent in a direction away from the cover plate 30. The bent second display area AA2 can enable the edge area of the display module to have a display function, so that the screen occupation ratio of the display device is improved.
Referring to fig. 2, in some implementations of the embodiments of the present application, the number of the second display areas AA2 may be one, and one second display area AA2 may be connected to one side of the first display area AA1, for example, below the first display area AA1, so that a lower edge area of the display module has a display function, thereby removing a lower frame of the display device.
Referring to fig. 3, in other implementations of the embodiments of the present application, there may be two second display areas AA2, and the two second display areas AA2 may be connected to two sides of the first display area AA1, for example, two sides of the first display area AA1 may have a display function in two side edge areas of the display module, so that frames on two sides of the display device are removed.
It can be understood that the number of the second display areas AA2 may be three or four, and the three or four second display areas AA2 may be connected to different sides of the first display area AA1, so that edge areas of different sides of the display device have a display function, and thus frames of different sides of the display device are removed.
Illustratively, the functional layer 20 may include a touch layer 210 and a polarizing layer 220 stacked on the light emitting side of the flexible display panel 10. The touch layer 210 is used for realizing a touch function of the display module. The polarizing layer 220 is used to eliminate the ambient light reflected by the electrodes in the driving array layer within the flexible display panel 10, so as to ensure the display effect of the flexible display panel 10. It is understood that the functional layer 20 may further include other film layers, which are not described herein in detail.
Referring to fig. 4, an optical structure 50 may be disposed between the light emitting side of the second display area AA2 and the cover plate 30, and a refractive index of the optical structure 50 is smaller than that of the cover plate 30. And the refractive index of the optical structure 50 is smaller than that of the functional layer 20, for example, when the functional layer 20 includes the touch layer 210 and the polarizing layer 220, the refractive indexes of the touch layer 210 and the polarizing layer 220 are both larger than that of the optical structure 50. In the first direction, the thickness of the optical structure 50 gradually increases.
It should be noted that, the first direction is parallel to the first display area AA1 and perpendicular to the bending axis of the second display area AA2, i.e. the x direction shown in fig. 4, hereinafter referred to as the first direction x. The bending axis is an axis around which the second display area AA2 bends. That is, the second display area AA2 is folded around the folding axis. For example, as shown in fig. 4, the bending axis is parallel to the y-direction.
Light emitted from the pixels in the second display area AA2 is incident to the human eye through the functional layer 20, the optical structure 50 and the cover plate 30 in order. The interface between the functional layer 20 and the optical structure 50 is a curved surface due to the bending of the second display area AA 2; and the thickness of the optical structure 50 gradually increases along the first direction x; meanwhile, the refractive index of the optical structure 50 is smaller than that of the functional layer 20 and smaller than that of the cover plate 30, so that a lens structure is formed among the functional layer 20, the optical structure 50 and the cover plate 30. The lens structure can enable light rays with smaller luminous angles emitted by pixels of the flexible display panel 10 to enter human eyes. Accordingly, the light received by the human eye is light emitted from the pixels within the flexible display panel 10 at a smaller angle than the related art. The smaller the light emitting angle of the light emitted by the pixel is, the smaller the brightness attenuation and the color deviation are, so that the technical problems of the brightness reduction and the chromaticity change of the second display area AA2 are solved.
In some implementations of embodiments of the present application, referring to fig. 4, a surface of the cover plate 30 contacting the optical structure 50 may be a first arc surface 310 curved toward the second display area AA 2.
Taking light entering the human eyes vertically as an example, referring to fig. 1, in the related art, when the display module displays an image, the image is viewed from the forward direction of the display module, i.e. from the light emitting direction of the display module, since the refractive indexes of the functional layer 20, the second optical adhesive layer 40 and the cover plate 30 are approximately equal, the light E emitted from the point C of the flexible display panel 10 sequentially passes through the functional layer 20, the second optical adhesive layer 40 and the cover plate 30 without being deflected, and then vertically enters the human eyes. Therefore, the light received by the human eye is the light E with the light emitting angle α emitted by the pixel at point C.
Referring to fig. 5, light vertically entering the human eye can be taken as vertical incident light H1 according to the principle of reversibility of the optical path. When the incident light ray H1 propagates in the cover plate 30 and is incident on the junction of the cover plate 30 and the optical structure 50, since the surface of the cover plate 30 contacting the optical structure 50 is the first arc surface 310 curved toward the second display area AA2, and the refractive index of the optical structure 50 is smaller than that of the cover plate 30, the light ray G1 exiting from the junction of the cover plate 30 and the optical structure 50 is slightly deflected in a direction away from the first display area AA1.
When the light ray G1 continues to propagate in the optical structure 50 and is incident on the interface between the optical structure 50 and the functional layer 20, since the surface of the optical structure 50 contacting the functional layer 20 is a curved surface with a curvature greater than that of the first curved surface 310 and the refractive index of the optical structure 50 is smaller than that of the functional layer 20, the light ray F1 exiting from the interface between the optical structure 50 and the functional layer 20 deflects toward the direction close to the first display area AA1. The deflection angle of the light ray F1 is larger than that of the light ray G1, so that the light ray F1 is deflected in the direction of the first display area AA1 compared with the incident light ray H1. The light ray F1 continues to propagate in the functional layer 20 and is incident on the point D of the flexible display panel 10. The included angle between the light F1 and the normal of the point D is beta. Since the light F1 is deflected in the direction of the first display area AA1 compared to the incident light H1, β is smaller than α.
The optical path shown in fig. 5 is reversed according to the principle of reversibility of the optical path, namely, the optical path in fig. 4. Therefore, the light received by the human eye is the light H with the light emitting angle β emitted by the D-point pixel of the flexible display panel 10. That is, the light received by the human eye is light with a smaller light emission angle. Therefore, the display module of the embodiment of the application can alleviate the technical problems of the brightness reduction and the chromaticity change of the second display area.
In other implementations of embodiments of the present application, referring to fig. 6, the surface of the cover plate 30 contacting the optical structure 50 may also be parallel to the first plane 320 of the first display area AA1. Light entering the human eye perpendicularly may not be deflected before entering the interface between the optical structure 50 and the cover plate 30. The light entering the human eye is the light emitted from the J point of the flexible display panel 10 and having a light emitting angle γ, and γ is smaller than β. That is, when the surface of the cover plate 30 contacting the optical structure 50 is the first plane 320, the light received by the human eye is the light with the smaller light emitting angle compared to the surface of the cover plate 30 contacting the optical structure 50 is the first cambered surface 310, so that the technical problems of the brightness reduction and the chromaticity change of the second display area can be further reduced.
In addition, the surface of the cover plate 30, which is in contact with the optical structure 50, is the first plane 320, so that the processing difficulty of the cover plate 30 can be reduced, and the process steps for manufacturing the cover plate 30 can be reduced, thereby improving the production efficiency of the cover plate 30 and further reducing the production cost of the display module.
The refractive index of the optical structure 50 is smaller than the refractive index of the functional layer 20 and smaller than the refractive index of the cover plate 30. In some implementations of the embodiments of the present application, referring to fig. 4 and 6, the optical structure 50 may be an air layer, so that the structure of the display module can be simplified, and no additional process steps are required, thereby ensuring the production efficiency of the display module.
In other implementations of embodiments of the present application, referring to fig. 7, the material of optical structure 50 may also be transparent solid dielectric layer 510. The transparent solid dielectric layer 510 can protect the functional layer 20, and prevent the functional layer 20 from being damaged to affect the service life of the display module.
For example, the transparent solid dielectric layer 510 may be a first optical adhesive layer, where the first optical adhesive layer bonds the functional layer 20 and the cover plate 30, and the refractive index of the first optical adhesive layer is smaller than the refractive index of the functional layer 20 and smaller than the refractive index of the cover plate 30. It is understood that the transparent solid dielectric layer 510 may be made of other light-transmitting materials having a refractive index smaller than that of the functional layer 20 and the cover plate 30.
When the optical structure 50 is an air layer and the surface of the cover plate 30 contacting the air layer is the first plane 320, in order to clearly illustrate the technical effects of the embodiments of the present application, an optical simulation is performed on the solution. The result of the optical simulation is shown in fig. 8, in which the abscissa is the first direction x and the ordinate is the relative brightness. Scheme one is the relative brightness curve of the display module of the embodiment of the application when the display module is in forward viewing, and scheme two is the relative brightness curve of the display module in the related art when the display module is in forward viewing. As can be seen from fig. 8, compared with the related art, the display module of the embodiment of the present application has a larger relative brightness when the second display area AA2 is viewed in the forward direction. Therefore, the present embodiment alleviates the technical problem of the reduction in brightness of the second display area AA 2.
For example, referring to fig. 6, the surface of the cover plate 30 facing away from the second display area AA1 may be a second plane 330 parallel to the first display area AA1, or may be a second curved surface curved toward the second display area.
Referring to fig. 7, the display module may further include a second optical adhesive layer 40 between the first display area AA1 and the cover plate 30, and the second optical adhesive layer 40 adheres the cover plate 30 and the first display area AA1. The second optical adhesive layer 40 is abutted with the optical structure 50 to avoid the influence of the gap between the second optical adhesive layer 40 and the optical structure 50 on the display effect of the display module.
Illustratively, referring to fig. 7, the display module may further include a support layer 110, a heat dissipation layer 120, and a buffer layer 130. The support layer 110 provides support for the flexible display panel 10. Illustratively, the supporting layer 110 may include a first supporting portion 111 and a second supporting portion 112 disposed at intervals, and the intervals between the first supporting portion 111 and the second supporting portion 112 are disposed opposite to the bending area of the second display area AA2 to reduce stress when the second display area AA2 is bent.
The heat dissipation layer 120 may be disposed on a side of the first supporting portion 111 opposite to the flexible display panel 10, where the heat dissipation layer 120 can dissipate heat of the flexible display panel 10, so as to reduce a temperature of the flexible display panel 10 during operation and prevent the flexible display panel 10 from being damaged.
The buffer layer 130 may be disposed between the heat dissipation layer 120 and the second supporting portion 112 to absorb impact energy received by the display module, so as to prevent the display module from being damaged when being vibrated or impacted, thereby affecting the service life. Illustratively, the buffer layer 130 may be foam. It is understood that the buffer layer 130 may also be made of a material having a buffer function, which is not described in detail in the embodiments of the present application.
A second aspect of the embodiments of the present application provides a display device, including a display module set as any one of the above.
The display device of the embodiment of the application, because of including any one of the display modules, also has the advantages of the display module, and will not be described herein again.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present application, and not for limiting the same; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present application.
Claims (10)
1. The display module is characterized by comprising a flexible display panel, a functional layer covering the light emitting side of the flexible display panel and a cover plate arranged on the functional layer; the flexible display panel and the functional layer are provided with a first display area and at least one second display area which are connected, and the second display area is bent in a direction away from the cover plate; an optical structure is arranged between the light emitting side of the second display area and the cover plate, and the refractive index of the optical structure is smaller than that of the cover plate and smaller than that of the functional layer; the thickness of the optical structure is gradually increased along a first direction, and the first direction is parallel to the first display area and perpendicular to the bending axis of the second display area.
2. The display module of claim 1, wherein the optical structure is an air layer.
3. The display module of claim 1, wherein the optical structure is a transparent solid dielectric layer.
4. A display module according to claim 3, wherein the transparent solid dielectric layer is a first optical glue layer, and the first optical glue layer bonds the functional layer and the cover plate.
5. The display module of any one of claims 1-4, wherein a surface of the cover plate in contact with the optical structure is a first curved surface curved toward the second display area.
6. The display module of any one of claims 1-4, wherein a surface of the cover plate in contact with the optical structure is a first plane parallel to the first display area.
7. The display module of any one of claims 1-4, wherein a surface of the cover plate facing away from the second display area is a second plane parallel to the first display area or a second cambered surface bent toward the second display area.
8. The display module of any one of claims 1-4, further comprising a second optical cement layer positioned between the first display area and the cover plate, the second optical cement layer adhering the cover plate and the first display area and interfacing with the optical structure.
9. The display module of any one of claims 1-4, wherein the functional layer comprises a touch layer and a polarizing layer that are stacked on a light emitting side of the flexible display panel, and refractive indices of the touch layer and the polarizing layer are both greater than a refractive index of the optical structure.
10. A display device comprising a display module according to any one of claims 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
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Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017000433A1 (en) * | 2015-06-30 | 2017-01-05 | 京东方科技集团股份有限公司 | Stereoscopic display substrate, manufacturing method therefor, and stereoscopic display device |
| CN110352494A (en) * | 2019-05-27 | 2019-10-18 | 京东方科技集团股份有限公司 | Display panel and display device |
| CN210110847U (en) * | 2019-08-15 | 2020-02-21 | 昆山国显光电有限公司 | Display panel and display device |
| CN111509020A (en) * | 2020-04-29 | 2020-08-07 | 湖北长江新型显示产业创新中心有限公司 | Flexible display panel and display device |
| CN111834542A (en) * | 2020-06-28 | 2020-10-27 | 湖北长江新型显示产业创新中心有限公司 | Display panel and display device |
| CN112732013A (en) * | 2019-10-29 | 2021-04-30 | Oppo广东移动通信有限公司 | Electronic equipment, display screen assembly and display screen cover plate thereof |
| CN113053236A (en) * | 2021-03-02 | 2021-06-29 | Oppo广东移动通信有限公司 | Electronic equipment, display module and cover plate |
| CN113160707A (en) * | 2021-03-31 | 2021-07-23 | 昆山国显光电有限公司 | Display panel and display device |
| CN214476074U (en) * | 2020-12-15 | 2021-10-22 | 昆山国显光电有限公司 | Flexible display module |
| CN113809265A (en) * | 2021-08-30 | 2021-12-17 | 武汉天马微电子有限公司 | Display panel and display device |
| CN114188491A (en) * | 2021-11-24 | 2022-03-15 | 京东方科技集团股份有限公司 | Display panel, manufacturing method thereof and display device |
| CN114388711A (en) * | 2022-01-27 | 2022-04-22 | 武汉华星光电半导体显示技术有限公司 | Display module and mobile terminal |
-
2022
- 2022-08-31 CN CN202211069065.2A patent/CN115331561B/en active Active
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017000433A1 (en) * | 2015-06-30 | 2017-01-05 | 京东方科技集团股份有限公司 | Stereoscopic display substrate, manufacturing method therefor, and stereoscopic display device |
| CN110352494A (en) * | 2019-05-27 | 2019-10-18 | 京东方科技集团股份有限公司 | Display panel and display device |
| CN210110847U (en) * | 2019-08-15 | 2020-02-21 | 昆山国显光电有限公司 | Display panel and display device |
| CN112732013A (en) * | 2019-10-29 | 2021-04-30 | Oppo广东移动通信有限公司 | Electronic equipment, display screen assembly and display screen cover plate thereof |
| CN111509020A (en) * | 2020-04-29 | 2020-08-07 | 湖北长江新型显示产业创新中心有限公司 | Flexible display panel and display device |
| CN111834542A (en) * | 2020-06-28 | 2020-10-27 | 湖北长江新型显示产业创新中心有限公司 | Display panel and display device |
| CN214476074U (en) * | 2020-12-15 | 2021-10-22 | 昆山国显光电有限公司 | Flexible display module |
| CN113053236A (en) * | 2021-03-02 | 2021-06-29 | Oppo广东移动通信有限公司 | Electronic equipment, display module and cover plate |
| CN113160707A (en) * | 2021-03-31 | 2021-07-23 | 昆山国显光电有限公司 | Display panel and display device |
| CN113809265A (en) * | 2021-08-30 | 2021-12-17 | 武汉天马微电子有限公司 | Display panel and display device |
| CN114188491A (en) * | 2021-11-24 | 2022-03-15 | 京东方科技集团股份有限公司 | Display panel, manufacturing method thereof and display device |
| CN114388711A (en) * | 2022-01-27 | 2022-04-22 | 武汉华星光电半导体显示技术有限公司 | Display module and mobile terminal |
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| CN115331561A (en) | 2022-11-11 |
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