CN115273692A - Display panel and display device - Google Patents

Display panel and display device Download PDF

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Publication number
CN115273692A
CN115273692A CN202210905515.0A CN202210905515A CN115273692A CN 115273692 A CN115273692 A CN 115273692A CN 202210905515 A CN202210905515 A CN 202210905515A CN 115273692 A CN115273692 A CN 115273692A
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display
display unit
state
photosensitive element
display panel
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CN202210905515.0A
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Chinese (zh)
Inventor
刘江
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Yungu Guan Technology Co Ltd
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Yungu Guan Technology Co Ltd
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Priority to CN202210905515.0A priority Critical patent/CN115273692A/en
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    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09FDISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F9/00Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
    • G09F9/30Indicating 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
    • G09F9/37Indicating 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 movable elements
    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09FDISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F9/00Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
    • G09F9/30Indicating 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
    • G09F9/33Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements being semiconductor devices, e.g. diodes

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  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)

Abstract

The application provides a display panel and a display device. The first display unit has a first transparent region and a first display region surrounding the first transparent region. The second display unit is rotatably connected to the first display unit such that the second display unit can rotate between a first state and a second state. Wherein in the first state the second display unit is located within the first transparent region. In the second state, the second display element and the first transparent region are misaligned. In the first state, the second display unit is positioned in the first transparent area of the first display unit, so that the display uniformity of the display panel can be improved. In the second state, the second display unit and the first transparent region are misaligned, which may facilitate the photosensitive element to acquire image information.

Description

Display panel and display device
Technical Field
The application relates to the technical field of display panels, in particular to a display panel and a display device.
Background
The high screen ratio of the display panel can make the display panel have the characteristics of good display effect, convenient single-hand operation, better portability and the like, so that the display panel with the high screen ratio is favored by most consumers.
In the related art, the improvement of the screen occupation ratio can be achieved by disposing a photosensitive element such as a front camera, an infrared sensing element, or the like below the screen. However, the photosensitive element is disposed below the screen, which may cause display unevenness of the display panel and even affect the photosensitive element to acquire image information.
Disclosure of Invention
The application provides a display panel and a display device, which can improve the display uniformity of the display panel and help a photosensitive element to acquire image information.
In a first aspect, an embodiment of the present application provides a display panel including a first display unit and a second display unit. The first display unit has a first transparent region and a first display region surrounding the first transparent region. The second display unit is rotatably connected to the first display unit such that the second display unit can rotate between a first state and a second state. Wherein in the first state the second display unit is located within the first transparent region. In the second state, the second display element and the first transparent region are misaligned.
In the above embodiment, the second display unit is rotatably connected to the first display unit so that the second display unit can be rotated between the first state and the second state. In the first state, the second display unit is positioned in the first transparent area of the first display unit, so that the display uniformity of the display panel can be improved. In the second state, the second display unit and the first transparent region are misaligned, which may facilitate the photosensitive element to acquire image information.
According to any of the embodiments of the first aspect of the present application, the second display unit has a second display region, and the display panel further includes a plurality of first light-emitting sub-pixels and a plurality of second light-emitting sub-pixels. The plurality of first light-emitting sub-pixels are positioned in the first display area, and the plurality of second light-emitting sub-pixels are positioned in the second display area. And the density of the first light-emitting sub-pixels in the first display area is equal to that of the second light-emitting sub-pixels in the second display area. Preferably, the size of the first light emitting sub-pixel is the same as the size of the second light emitting sub-pixel.
According to any one of the embodiments of the first aspect of the present application, the display panel further includes a hinge component, the hinge component includes a first connecting portion, a second connecting portion and a hinge connected between the first connecting portion and the second connecting portion, wherein the first connecting portion is connected to the first display unit, and the second connecting portion is connected to the second display unit, so that the second display unit can be rotatably disposed relative to the first display unit through the hinge.
According to any of the embodiments of the first aspect of the present application, the hinge is disposed on the non-display surface of the first display area. Preferably, the hinge and the first transparent area are offset.
According to any one of the embodiments of the first aspect of the present application, a height of the second display unit protruding from the surface of the second connection portion is less than or equal to a thickness of the first display unit.
In a second aspect, an embodiment of the present application provides a display device, which includes the display panel and the photosensitive element in any one of the embodiments. The first display unit is provided with a first surface and a second surface which are oppositely arranged, and the first surface is a display surface. The photosensitive element is arranged on the second surface of the first display unit and can acquire image information through the first transparent area.
According to any of the preceding embodiments of the second aspect of the present application, the display device further comprises a backplane and a first support layer. The first supporting layer is located between the first display unit and the bottom plate and comprises a yielding hollow portion, and the photosensitive element is located in the yielding hollow portion. Preferably, the display device further includes a second supporting layer located on a side of the bottom plate facing the first display unit, the second supporting layer is located in the abdicating hollow portion, and the thickness of the second supporting layer is smaller than that of the first supporting layer.
According to any of the embodiments of the second aspect of the present application, when the second display unit rotates between the first state and the second state, the maximum height of the second display unit, which protrudes from the first display unit and faces the bottom surface, is less than or equal to the difference between the thickness of the first support layer and the thickness of the second support layer.
According to any one of the embodiments of the second aspect of the present application, the display device includes a driving component, located in the avoiding hollow portion and connected to the photosensitive element, for driving the photosensitive element to move between the initial position and the target position. In the first state, the driving component is used for driving the photosensitive element to be located at the initial position, and the photosensitive element is dislocated with the first transparent area at the initial position. In the second state, the driving component is used for driving the photosensitive element to be located at the target position opposite to the first transparent area, and the photosensitive element can acquire image information through the first transparent area at the target position.
According to any one of the embodiments of the second aspect of the present application, in the second state, the second display unit is located at a hidden position, and the hidden position and the initial position are arranged at intervals along the circumferential direction of the first transparent region.
Drawings
Other features, objects and advantages of the present application will become more apparent upon reading of the following detailed description of non-limiting embodiments thereof, when taken in conjunction with the accompanying drawings, in which like or similar reference characters designate like or similar features, and which are not necessarily drawn to scale.
Fig. 1 is a schematic diagram illustrating a top view structure of a display panel according to some embodiments of the present application;
FIG. 2 is a schematic diagram illustrating a top view of a display panel according to another embodiment of the present application;
FIG. 3 shows a partial enlarged view at S in FIG. 2;
fig. 4 is a schematic cross-sectional view illustrating a second display unit in a first state in a display panel according to some embodiments of the present disclosure;
fig. 5 is a schematic cross-sectional view illustrating a second display unit in a display panel according to some embodiments of the present disclosure in a second state;
FIG. 6 is a schematic diagram illustrating a top view of a display panel according to some embodiments of the present disclosure;
FIG. 7 is a schematic cross-sectional view of a display panel according to some embodiments of the present disclosure;
FIG. 8 is a schematic cross-sectional view of a display panel according to some embodiments of the present disclosure;
fig. 9 illustrates a schematic top view structure of a mobile phone provided in an embodiment of the present application;
FIG. 10 is a schematic cross-sectional view taken along line D-D of FIG. 8;
fig. 11 is a schematic cross-sectional view of a mobile phone provided by some embodiments of the present application in a first state;
fig. 12 is a schematic cross-sectional view of a mobile phone in a transition state according to some embodiments of the present disclosure;
fig. 13 is a schematic cross-sectional view of a mobile phone in a first state according to some embodiments of the present application.
Description of reference numerals:
1000-mobile phone;
100-a display panel;
AA 1-a first display unit, AA 11-a first display area, NA 1-a first transparent area, 101-a through hole, S1-a first surface, S2-a second surface;
AA 2-second display unit;
NA-non-display unit;
102-a first light emitting sub-pixel, 1021-a first light emitting structure, 1022-a first electrode, 1023-a second electrode;
103-a second light emitting sub-pixel, 1031-a second light emitting structure, 1032-a third electrode, 1033-a fourth electrode;
104-hinge member, 1041-first connection, 1042-second connection, 1043-hinge;
105-a substrate;
106-a device layer;
107-pixel definition layer, K1-first pixel opening, K2-second pixel opening;
200-a photosensitive element;
300-a base plate;
400-a first support layer, 401-a relief hollow;
500-second support layer.
Detailed Description
Features and exemplary embodiments of various aspects of the present application will be described in detail below, and in order to make objects, technical solutions and advantages of the present application more apparent, the present application will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application. It will be apparent to one skilled in the art that the present application may be practiced without some of these specific details. The following description of the embodiments is merely intended to provide a better understanding of the present application by illustrating examples thereof.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrases "comprising 8230; \8230;" 8230; "does not exclude the presence of additional like elements in a process, method, article, or apparatus that comprises the element.
It will be understood that when a layer or region is referred to as being "on" or "over" another layer or region in describing the structure of the element, it can be directly on the other layer or region or intervening layers or regions may also be present. Also, if the component is turned over, one layer or region may be "under" or "beneath" another layer or region.
It should be understood that the term "and/or" as used herein is merely a relationship that describes an associated object, meaning that three relationships may exist, e.g., a and/or B, may represent: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" herein generally indicates that the former and latter related objects are in an "or" relationship.
In the embodiments of the present application, the term "electrically connected" may mean that two components are directly electrically connected, or may mean that two components are electrically connected to each other via one or more other components.
It will be apparent to those skilled in the art that various modifications and variations can be made in the present application without departing from the spirit or scope of the application. Thus, it is intended that the present application cover the modifications and variations of this application provided they come within the scope of the corresponding claims (the claimed technology) and their equivalents. It should be noted that the embodiments provided in the embodiments of the present application can be combined with each other without contradiction.
Before explaining the technical solutions provided by the embodiments of the present application, in order to facilitate understanding of the embodiments of the present application, the present application first specifically explains the problems existing in the related art:
since the display panel with a high screen ratio is popular with most consumers, the display panel is widely applied to electronic devices such as mobile phones, tablet computers and the like.
In the related art, the screen occupation ratio can be improved by disposing a photosensitive element such as a front camera, an infrared sensor element, or the like below the screen, and the photosensitive element can acquire image information through a corresponding screen area. In the screen area corresponding to the photosensitive element, the sub-pixel density or the sub-pixel area is usually smaller than those of other screen areas, or in the screen area corresponding to the photosensitive element, the light transmittance thereof needs to be larger than those of other screen areas. However, this may cause a difference in display between the screen area corresponding to the photosensitive element and the other screen area, i.e., display unevenness, and may even affect the photosensitive element to acquire image information.
In view of this, the present application provides a display panel and a display device, which can improve the display uniformity of the display panel and facilitate the photosensitive element to acquire image information. Embodiments of a display panel and a display device will be described below with reference to the accompanying drawings.
Fig. 1 is a schematic diagram illustrating a top view structure of a display panel according to some embodiments of the present disclosure. Fig. 2 is a schematic diagram illustrating a top view structure of a display panel according to another embodiment of the present application. Fig. 3 shows a partial enlarged view at S in fig. 2. Fig. 4 is a schematic cross-sectional view illustrating a second display unit in a display panel in a first state according to some embodiments of the present disclosure. Fig. 5 is a schematic cross-sectional view illustrating a second display unit in a display panel according to some embodiments of the present disclosure in a second state.
Referring to fig. 1, an embodiment of the present disclosure provides a display panel 100, where the display panel 100 may be an Organic Light Emitting Diode (OLED) display panel.
The display panel 100 according to the embodiment of the present application includes a first display unit AA1, a second display unit AA2, and a non-display unit NA surrounding the first display unit AA1 and the second display unit AA2.
Referring to fig. 2, in other alternative embodiments of the present application, the display panel 100 may be a full-screen display panel 100, and the display panel 100 includes a first display unit AA1 and a second display unit AA2.
Referring to fig. 3, the first display unit AA1 has a first transparent area NA1 and a first display area AA11 surrounding the first transparent area NA1. The second display unit AA2 is rotatably coupled to the first display unit AA1 such that the second display unit AA2 can rotate between a first state and a second state. Referring to fig. 4, in the first state, the second display unit AA2 is located in the first transparent area NA1. Referring to fig. 5, in the second state, the second display unit AA2 and the first transparent area NA1 are misaligned. In the present embodiment, in the first display unit AA1, the first display area AA11 is disposed around the first transparent area NA1, and it can be understood that the first transparent area NA1 is located within the first display area AA11. In the first state, the second display unit AA2 is located in the first transparent area NA1 to realize the display of the display panel 100 together with the first display unit AA 1.
In some embodiments of the present application, the first transparent area NA1 may be opened with a hole, which may be a through hole 101 or a blind hole, wherein the through hole 101 penetrates through two oppositely disposed surfaces of the first transparent area NA1 in a thickness direction of the display panel 100.
In some alternative embodiments of the present application, the cross-sectional area of the through-hole 101 may be less than or equal to the surface area of the first transparent area NA1.
In other alternative embodiments of the present application, the cross-sectional area of the through hole 101 is equal to the surface area of the first transparent area NA1, which may help to improve the dark stripe boundary between the first display unit AA1 and the second display unit AA2, i.e., help to improve the display uniformity of the display panel 100.
In the embodiment of the present application, the cross-sectional area of the through hole 101 may be designed according to the cross-sectional area of the photosensitive element 200, and the embodiment of the present application is not particularly limited herein. And the shape of the through hole 101 may be any shape, such as a circle, an ellipse, a semicircle, a square, etc., and the embodiment of the present application is not limited thereto.
In addition, the non-display surface of the display panel 100 may be integrated with a photosensitive element, such as a camera, for example, so as to realize the under-screen integration of the photosensitive element, which may enable the photosensitive element to obtain image information through the through hole 101. Meanwhile, the first display unit AA1 and the second display unit AA2 can display images, so that the display area of the display panel 100 is increased, and the overall screen design of the display device is realized.
In the second display unit AA2, the second display unit AA2 is rotatably connected to the first display unit AA1, and it can be understood that the second display unit AA2 can rotate relative to the first display unit AA1 by using a joint of the second display unit AA2 and the first display unit AA1 as a rotating shaft, and the rotating mode can be a rolling or folding rotating mode, and can also be other rotating modes, and the embodiment of the present application is not particularly limited herein.
The second display unit AA2 is rotatably connected to the first display unit AA1, so that the second display unit AA2 can rotate between a first state and a second state, wherein in the first state, the second display unit AA2 is located in the first transparent area NA1, and displays a picture in the first transparent area NA1, which can increase the display area of the display panel 100 and is helpful for realizing a full-screen design of the display device. In the second state, the second display unit AA2 and the first transparent area NA1 are dislocated, and at this time, the external light is not interfered by the sub-pixels and can be sensed by the photosensitive element through the first transparent area NA1.
In the above embodiment, the second display unit AA2 is rotatably coupled to the first display unit AA1 such that the second display unit AA2 can rotate between the first state and the second state. In the first state, the second display unit AA2 is located in the first transparent area NA1 of the first display unit AA1, so that the display uniformity of the display panel 100 can be improved. In the second state, the second display unit AA2 and the first transparent area NA1 are misaligned, which may facilitate the photosensitive element to acquire image information.
Fig. 6 is a schematic diagram illustrating a top view structure of a display panel according to some embodiments of the present application.
Referring to fig. 6, in some optional embodiments of the present disclosure, the second display unit AA2 has a second display area AA21, and the display panel 100 further includes a plurality of first light-emitting sub-pixels 102 and a plurality of second light-emitting sub-pixels 103. The plurality of first light-emitting sub-pixels 102 are located in the first display area AA11, and the plurality of second light-emitting sub-pixels 103 are located in the second display area AA21. The density of the first light emitting sub-pixels 102 in the first display area AA11 is equal to the density of the second light emitting sub-pixels 103 in the second display area AA21.
The first light-emitting sub-pixel 102 and the second light-emitting sub-pixel 103 can emit light for display. In some embodiments, the first light-emitting sub-pixel 102 and the second light-emitting sub-pixel 103 may be sub-pixels of any one color of a red light-emitting sub-pixel, a green light-emitting sub-pixel, and a blue light-emitting sub-pixel, respectively and independently.
The pixel density (PPI) means the number of Pixels Per Inch of screen, for example, the resolution is 1280 × 720, i.e., the number of subpixels in the width direction of the screen is 1280, the number of subpixels in the height direction is 720, the screen is 5 inches (Inch),
Figure BDA0003772262040000091
Figure BDA0003772262040000092
in the above alternative embodiments, the density of the first light-emitting sub-pixels 102 in the first display area AA11 is equal to the density of the light-emitting sub-pixels 103 in the second display area AA21, so that the display difference between the first display area AA11 and the second display area AA21 can be reduced, thereby improving the uniformity of the display panel 100.
Illustratively, the density of the first light emitting sub-pixels 102 of the first display area AA11 is 192dpi, and the density of the second light emitting sub-pixels 103 of the second display area is also 192dpi.
In some alternative embodiments of the present application, the size of the first light emitting sub-pixel 102 is the same as the size of the second light emitting sub-pixel 103.
In the above-mentioned alternative embodiments, the size of the first light-emitting sub-pixel 102 is the same as that of the second light-emitting sub-pixel 103, so that the display difference between the first display area AA11 and the second display area AA21 is further reduced, and the display uniformity is improved.
In the embodiment of the present application, the second display unit AA2 is rotatably connected to the first display unit AA1, so that the second display unit AA2 can rotate between the first state and the second state, and the rotation manner may be a rolling or folding rotation manner, or other rotation manners.
In some alternative embodiments of the present application, the second display unit AA2 is folded with respect to the first display unit AA1, such that the second display unit AA2 and the through hole 101 are misaligned. This may help the photosensitive element to sense external light through the through hole 101.
Fig. 7 is a schematic cross-sectional view illustrating a display panel according to some embodiments of the present disclosure.
Referring to fig. 7, in some alternative embodiments of the present application, the hinge assembly 104 of the display panel 100 includes a first connecting portion 1041, a second connecting portion 1042 and a hinge 1043 connected between the first connecting portion 1041 and the second connecting portion 1042, the first connecting portion 1041 is connected to the first display unit AA1, and the second connecting portion 1042 is connected to the second display unit AA2, so that the second display unit AA2 can be rotatably disposed relative to the first display unit AA1 through the hinge 1043.
In these alternative embodiments, the hinge assembly 104 may facilitate the second display unit AA2 to rotate relative to the first display unit AA1, and when the second display unit AA2 rotates between the first state and the second state, the second display unit AA2 may not wrinkle under the action of the hinge assembly 104, thereby improving the display effect and the service life of the display panel 100.
In some optional embodiments of the present application, the hinge 1043 is disposed on the non-display surface of the first display area AA11.
In the above-mentioned alternative embodiments, the first display area AA11 has a display surface and a non-display surface, and the hinge 1043 is disposed on the non-display surface of the first display area AA11, so that display interference of the hinge 1043 on the display surface can be reduced.
In some optional embodiments of the present application, the hinge 1043 and the first transparent area NA1 are arranged in an offset manner.
In the above optional embodiments, the hinge 1043 and the first transparent area NA1 are disposed in a staggered manner, so that the display interference of the hinge 1043 on the display surface can be further reduced, and the external light cannot be interfered when the second display unit AA2 rotates to the second state and passes through the first transparent area NA1.
In some optional embodiments of the present application, a height of the second display unit AA2 protruding from the surface of the second connecting portion 1042 is less than or equal to a thickness of the first display unit AA 1.
In the above-mentioned alternative embodiments, the thickness of the second display unit AA2 is set to improve the flatness of the display panel 100, which is beneficial to the display of the display panel 100.
In some embodiments of the present application, the height of the second display unit AA2 protruding from the surface of the second connecting portion 1042 is equal to the thickness of the first display unit AA 1.
Fig. 8 is a schematic cross-sectional view illustrating a display panel according to some embodiments of the present disclosure.
Referring to fig. 8, in some alternative embodiments of the present application, the display panel 100 includes a substrate 105, a device layer 106, and a pixel defining layer 107. The device layer 106 is located on one side of the substrate 105. The pixel definition layer 107 is located on a side of the device layer 106 facing away from the substrate 105.
The substrate 105 may be a flexible substrate, which may be, for example, a Polyethylene terephthalate (PET) substrate, a Polyethylene naphthalate (PEN) substrate, a Polyimide (PI) substrate, or ultra-thin glass, etc.
The device layer 106 may include pixel circuitry for driving the display of the individual subpixels. The pixel defining layer 107 includes a first pixel opening K1 located in the first display area AA11 and a second pixel opening K2 located in the second display area AA21.
The first light emitting sub-pixel 102 includes a first light emitting structure 1021, a first electrode 1022, and a second electrode 1023. The first light emitting structure 1021 is located in the first pixel opening K1, the first electrode 1022 is located on a side of the first light emitting structure 1021 facing the substrate 105, and the second electrode 1023 is located on a side of the first light emitting structure 1021 facing away from the substrate 105. One of the first electrode 1022 and the second electrode 1023 is an anode and the other is a cathode.
In some embodiments, the second light emitting sub-pixel 103 comprises a second light emitting structure 1031, a third electrode 1032 and a fourth electrode 1033. The second light emitting structure 1031 is located in the second pixel opening K2, the third electrode 1032 is located on a side of the second light emitting structure 1031 facing the substrate 105, and the fourth electrode 1033 is located on a side of the second light emitting structure 1031 facing away from the substrate 105. One of the third electrode 1032 and the fourth electrode 1033 is an anode, and the other is a cathode.
For convenience of explanation, the following embodiments are described with the first electrode 1022 and the third electrode 1032 being anodes and the second electrode 1023 and the fourth electrode 1033 being cathodes.
The first light emitting structure 1021 and the second light emitting structure 1031 may respectively include an OLED light emitting layer, and each may further include at least one of a hole injection layer, a hole transport layer, an electron injection layer, or an electron transport layer according to design requirements of the first light emitting structure 1021 and the second light emitting structure 1031.
In some alternative embodiments of the present application, the first electrode 1022 is a light-transmissive electrode. In some embodiments, the first electrode 1022 includes an Indium Tin Oxide (ITO) layer or an Indium zinc Oxide (izo) layer.
In other alternative embodiments of the present application, the first electrode 1022 is a reflective electrode including a first light-transmissive conductive layer, a reflective layer on the first light-transmissive conductive layer, and a second light-transmissive conductive layer on the reflective layer. The first and second transparent conductive layers may be ITO, indium zinc oxide, etc., and the reflective layer may be a metal layer, such as made of silver.
In the embodiment of the present application, the third electrode 1032 may be configured to be made of the same material as the first electrode 1022.
In some optional embodiments of the present application, the second electrode 1023 includes a magnesium silver alloy layer. The fourth electrode 1033 may be configured to be made of the same material as the second electrode 1023.
In some alternative embodiments of the present application, the second electrode 1023 and the fourth electrode 1033 may be interconnected as a common electrode.
For example, the display panel 100 may further include an encapsulation layer, and a polarizer and a cover plate located above the encapsulation layer, or the cover plate may be directly disposed above the encapsulation layer, without disposing a polarizer, or at least the cover plate may be directly disposed above the encapsulation layer of the first display area AA11, without disposing a polarizer, so as to avoid the polarizer from affecting the light collection amount of the photosensitive element disposed below the first transparent area NA1, and of course, the polarizer may also be disposed above the encapsulation layer of the first display area AA11.
The embodiment of the present application further provides a display device, which includes the display panel 100 and the photosensitive element 200 in any of the above embodiments. In the embodiments of the present application, the display device may be any device having a display function, for example, a mobile device such as a mobile phone, a tablet Computer, a notebook Computer, a palm top Computer, a vehicle-mounted electronic device, a wearable device, an Ultra Mobile Personal Computer (UMPC), a netbook, or a Personal Digital Assistant (PDA), or a non-mobile device such as a Personal Computer (PC), a Television (Television; TV), a teller machine, or a self-service machine. A display device of an embodiment will be described as a mobile phone 1000.
Fig. 9 shows a schematic top view of a mobile phone provided in an embodiment of the present application. Fig. 10 shows a schematic cross-sectional view along the direction D-D in fig. 9.
Referring to fig. 9, the display panel may be the display panel 100 of one of the embodiments, where the display panel 100 includes a first display unit AA1 and a second display unit AA2, and the first display unit AA1 has a first transparent area NA1 and a first display area AA11 surrounding the first transparent area NA1. The second display unit AA2 is rotatably coupled to the first display unit AA1 such that the second display unit AA2 can rotate between a first state and a second state.
In some embodiments of the present application, the first transparent area NA1 is opened with a through hole 101.
Referring to fig. 10, the first display unit AA1 includes a first surface S1 and a second surface S2 disposed opposite to each other, wherein the first surface S1 is a display surface. The photosensitive element 200 is located at the second surface S2 side of the first display unit AA1, and the photosensitive element 200 can acquire image information through the first transparent area NA1.
The photosensitive element 200 may be an image pickup device for picking up external image information. In the embodiments of the present application, the photosensitive element 200 is a Complementary Metal Oxide Semiconductor (CMOS) image capturing Device, and in other embodiments of the present application, the photosensitive element 200 may also be a Charge-coupled Device (CCD) image capturing Device or other types of image capturing devices. It is understood that the light sensing element 200 may not be limited to an image capture device, for example, in some embodiments, the light sensing element 200 may also be an infrared sensor, a proximity sensor, an infrared lens, a flood sensing element, an ambient light sensor, a dot matrix projector, and the like. In addition, the second surface S2 of the first display unit AA1 may further integrate other components, such as an earpiece, a speaker, etc.
In the above embodiments, since the display panel 100 in any of the above embodiments is included, the display device has the technical effects of the display panel 100 in the above embodiments, that is, the display device has better display uniformity, and the light sensing element 200 can sense more light to obtain more complete image information.
Fig. 11 is a schematic cross-sectional view of a mobile phone in a first state according to some embodiments of the present application. Fig. 12 is a schematic cross-sectional view of a mobile phone in a transition state according to some embodiments of the present application. Fig. 13 is a schematic cross-sectional structure diagram of a mobile phone in a first state according to some embodiments of the present application.
Referring to fig. 11, in some alternative embodiments of the present application, the display device further includes a bottom plate 300 and a first support layer 400. The first supporting layer 400 is located between the first display unit AA1 and the bottom plate 300, the first supporting layer 400 includes a yielding hollow portion 401, and the photosensitive element 200 is located in the yielding hollow portion 401.
The base plate 300 may employ a rigid substrate, which may be, for example, a glass substrate or a Polymethyl methacrylate (PMMA) substrate, or the like. The bottom plate 300 may also adopt a flexible substrate, which may be, for example, a Polyethylene terephthalate (PET) substrate, a Polyethylene naphthalate (PEN) substrate, a Polyimide (PI) substrate, or ultra-thin glass, etc.
The first support layer 400 is positioned between the first display unit AA1 and the chassis base 300, and can provide a supporting function. Also, the first supporting layer 400 includes a recess portion 401, and the recess portion 401 may be used to integrate the photosensitive element 200, the receiver, the speaker, and the like.
The material of the first support layer 400 includes any one of polymethyl methacrylate, polycarbonate, polystyrene, cyclic olefin resin, or cross-linked polyethylene, and the first support layer 400 is formed on the base plate 300 by a spin coating method.
The abdicating hollow-out part 401 is arranged opposite to the first transparent area NA1, and it can be understood that the orthographic projection of the first transparent area NA1 on the bottom plate 300 is located on the orthographic projection of the abdicating hollow-out part 401 on the bottom plate 300.
In these alternative embodiments, the arrangement of the base plate 300 and the first support layer 400 can provide a supporting function for the display panel 100. In addition, the first supporting layer 400 includes a recess 401, so that the light sensing element 200, an earpiece, a speaker, and the like can be integrated therein, thereby contributing to a full screen design of the display device.
In some optional embodiments of the present application, the display device further includes a second support layer 500 located on a side of the bottom plate 300 facing the first display unit AA1, and the second support layer 500 is located at the concession hollow 401, and a thickness of the second support layer 500 is smaller than that of the first support layer 400.
The material of the second support layer 500 includes any one of polymethylmethacrylate, polycarbonate, polystyrene, cyclic olefin resin, or cross-linked polyethylene, and the second support layer 500 is formed on the base plate 300 by a spin coating method.
In these alternative embodiments described above, the second support layer 500 can provide a supporting function to the photosensitive element 200.
In some alternative embodiments of the present application, when the second display unit AA2 rotates between the first state and the second state, a maximum height of the second display unit AA2 protruding from the first display unit AA1 and facing the surface of the base plate 300 is less than or equal to a difference between a thickness of the first support layer 400 and a thickness of the second support layer 500.
The maximum height of the second display unit AA2 protruding from the first display unit AA1 and facing the surface of the bottom plate 300 is a distance between one end of the second display unit AA2 far away from the first display unit AA1 and one end of the second display unit AA2 close to the first display unit AA1 when the second display unit AA2 is perpendicular to the first display unit AA 1.
In the above-mentioned alternative embodiments, the maximum height of the second display unit AA2 protruding from the first display unit AA1 and facing the surface of the bottom plate 300 is less than or equal to the difference between the thickness of the first support layer 400 and the thickness of the second support layer 500, so that interference between the second display unit AA2 and the photosensitive element 200 when rotating between the first state and the second state can be reduced.
In some alternative embodiments of the present application, the display device includes a driving part connected to the photosensitive element 200 and configured to drive the photosensitive element 200 to move between the initial position and the target position. In the first state, the driving member is used to drive the photosensitive element 200 to be located at the initial position, and the photosensitive element 200 is dislocated from the first transparent area NA1 at the initial position. In the second state, the driving means is used to drive the photosensitive element 200 to be located at the target position opposite to the first transparent area NA1, and the photosensitive element 200 can acquire image information through the first transparent area NA1 at the target position.
The initial position may be located on the second support layer 500, or may be located on both sides of the second support layer 500, and the embodiment of the present application is not particularly limited herein. The target position may be located on the second support layer 500, or may be located on both sides of the second support layer 500, and the embodiment of the present application is not particularly limited herein.
The driving part may be any one of parts for providing a driving force in the display panel 100, such as a motor.
In these alternative embodiments described above, the driving means may drive the photosensitive element 200 to move rapidly between the initial position and the target position, and contribute to the photosensitive element 200 stably performing its function at the target position.
In some optional embodiments of the present application, in the second state, the second display unit AA2 is located at a hidden position, and the hidden position is spaced apart from the initial position along a circumferential direction of the first transparent area NA1.
In the above-mentioned optional embodiments, in the second state, the second display unit AA2 is located at the hidden position, so that interference of the second display unit AA2 to the external light passing through the first transparent area NA1 can be reduced, so as to increase the amount of light passing through the first transparent area NA1. In addition, the hidden position and the initial position are spaced apart from each other in the circumferential direction of the first transparent area NA1, so that the second display unit AA2 can be prevented from interfering with the photosensitive element 200 at the initial position.
In some examples, the hidden position and the initial position are respectively disposed at two sides of the second supporting layer 500, and a moving direction corresponding to a rotating direction of the second display unit AA2 is the same as a moving direction of the photosensitive element 200, so that interference between the rotation of the second display unit AA2 and the movement of the photosensitive element 200 can be further avoided.
In other examples, the hidden position and the initial position may be located on the same side of the second support layer 500.
In addition, the rotation of the second display unit AA2 may be performed simultaneously with the movement of the photosensitive element 200, the second display unit AA2 may be rotated first, and the photosensitive element 200 may be moved first.
According to some embodiments of the present application, the light sensing element 200 may be a camera. Referring to fig. 11, when taking a picture, the second display unit AA2 is folded to the second state by the hinge component 104, and the camera is controlled by the motor to move to the target position for taking a picture. Referring to fig. 12, after the photographing is finished, the transition state is entered, the camera moves to the initial position, and the second display unit AA2 is unfolded by the hinge component 104. Referring to fig. 13, when the second display unit AA2 is unfolded into the first transparent area NA1 by the hinge part 104, that is, the second display unit AA2 is completely unfolded, so that a full-screen display may be implemented.
In accordance with the embodiments of the present application as described above, these embodiments are not exhaustive and do not limit the application to the specific embodiments described. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the application and its practical application, to thereby enable others skilled in the art to best utilize the application and its various modifications as are suited to the particular use contemplated. The application is limited only by the claims and their full scope and equivalents.

Claims (10)

1. A display panel, comprising:
a first display unit having a first transparent region and a first display region surrounding the first transparent region;
a second display unit rotatably connected to the first display unit so that the second display unit can rotate between a first state and a second state;
in the first state, the second display unit is located in the first transparent area, and in the second state, the second display unit and the first transparent area are staggered.
2. The display panel according to claim 1, wherein the second display unit has a second display region, the display panel further comprising:
a plurality of first light-emitting sub-pixels located in the first display region; and
a plurality of second light-emitting sub-pixels located in the second display region;
wherein the first light emitting sub-pixel density in the first display region is equal to the second light emitting sub-pixel density in the second display region;
preferably, the size of the first light emitting sub-pixel is the same as the size of the second light emitting sub-pixel.
3. The display panel according to claim 2, characterized in that the display panel further comprises: the hinge assembly includes a first connecting portion, a second connecting portion and a hinge connected between the first connecting portion and the second connecting portion, wherein the first connecting portion is connected to the first display unit, and the second connecting portion is connected to the second display unit, so that the second display unit can be rotatably disposed with respect to the first display unit through the hinge.
4. The display panel according to claim 3, wherein the hinge is provided on a non-display surface of the first display region;
preferably, the hinge and the first transparent area are arranged in a staggered manner.
5. The display panel according to claim 3, wherein a height of the second display unit protruding from the surface of the second connecting portion is less than or equal to a thickness of the first display unit.
6. A display device, comprising:
the display panel of any one of claims 1-5, the first display unit having first and second oppositely disposed surfaces, the first surface being a display surface;
and the photosensitive element is arranged on the second surface of the first display unit and can acquire image information through the first transparent area.
7. The display device according to claim 6, wherein the display device further comprises:
a base plate;
the first support layer is positioned between the first display unit and the bottom plate, the first support layer comprises a yielding hollow part, and the photosensitive element is positioned in the yielding hollow part;
preferably, the display device further includes a second supporting layer located on one side of the bottom plate facing the first display unit, the second supporting layer is located in the abdicating hollow portion, and the thickness of the second supporting layer is smaller than that of the first supporting layer.
8. A display device as claimed in claim 7, characterised in that the maximum height of the second display element protruding from the first display element and facing the bottom surface is smaller than or equal to the difference between the thickness of the first support layer and the thickness of the second support layer when the second display element is rotated between the first state and the second state.
9. The display device according to claim 7, wherein the display device comprises:
the driving part is positioned in the abdicating hollow part and connected with the photosensitive element so as to drive the photosensitive element to move between an initial position and a target position;
in the first state, the driving component is used for driving the photosensitive element to be located at the initial position, and the photosensitive element is dislocated with the first transparent area at the initial position;
in the second state, the driving component is used for driving the photosensitive element to be located at the target position opposite to the first transparent area, and the photosensitive element can acquire image information through the first transparent area at the target position.
10. A display device as claimed in claim 9, characterised in that in the second state the second display element is in a hidden position, the hidden position being spaced from the initial position along the circumference of the first transparent region.
CN202210905515.0A 2022-07-29 2022-07-29 Display panel and display device Pending CN115273692A (en)

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