CN112002250A - Display device - Google Patents
Display device Download PDFInfo
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- CN112002250A CN112002250A CN202010782823.XA CN202010782823A CN112002250A CN 112002250 A CN112002250 A CN 112002250A CN 202010782823 A CN202010782823 A CN 202010782823A CN 112002250 A CN112002250 A CN 112002250A
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- light emitting
- flexible
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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
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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
Abstract
The application provides a display device, which comprises a shell assembly, a flexible display screen and a transmission assembly, wherein the flexible display screen and the transmission assembly are positioned in the shell assembly; when the display device is in a small screen state, the flexible display screen is bent at any angle through the transmission assembly and is contained in the shell assembly; when the display device is in a large screen state, the flexible display screen is positioned outside the shell assembly. This application utilizes flexible material to form flexible display screen and makes flexible display screen buckle with arbitrary angle to and accomodate flexible display screen through the transmission assembly in the casing subassembly, show and little screen display in order to realize display device's big screen display, reduced the volume of this flexible display screen greatly, improved the convenience of carrying of product.
Description
Technical Field
The present disclosure relates to display devices, and particularly to a display device.
Background
With the development of technology, the appearance of mobile electronic devices has changed greatly, and flexible screens are receiving much attention due to their unique characteristics and great potential. Compared with the traditional screen, the flexible screen has the characteristics of strong flexibility and flexibility, the degree of accidental damage of equipment can be reduced, and the durability degree is far higher than that of other screens.
Existing flexible screens include foldable and rollable displays, which, while reducing the size of the panel to some extent, still occupy a large space.
Therefore, a display device is needed to solve the above technical problems.
Disclosure of Invention
The application provides a display device to solve the technical problem that the existing flexible screen occupies a large space.
In order to solve the above problems, the technical solution provided by the present application is as follows:
the application provides a display device, wherein the display device comprises a shell assembly, a flexible display screen and a transmission assembly, wherein the flexible display screen and the transmission assembly are positioned in the shell assembly;
when the display device is in a small screen state, the flexible display screen is bent at any angle through the transmission assembly and is contained in the shell assembly; when the display device is in a large screen state, the flexible display screen is positioned outside the shell assembly.
In the display device of this application, flexible display screen includes the substrate, is located luminescent device layer on the substrate and being located apron layer on the luminescent device layer, the substrate luminescent device layer reaches the printing opacity district that apron layer corresponds comprises transparent material.
In the display device of the present application, the light emitting device layer includes an anode layer on the substrate, the anode layer includes at least a first protective layer, a transmission layer on the first protective layer, and a second protective layer on the transmission layer, and the second protective layer and the first protective layer cover the transmission layer completely.
In the display device of the present application, the first protective layer and the second protective layer are made of indium tin oxide, the transmission layer is made of silver, and the thickness of the transmission layer is 90nm to 110 nm.
In the display device of the present application, the light emitting device layer further includes a light emitting layer on the anode layer, the light emitting layer including at least three micro light emitting diodes.
In the display device of the present application, the light emitting device layer further includes a cathode layer on the light emitting layer, the cathode layer being composed of at least two kinds of transparent metals.
In the display device of the present application, the cathode layer is composed of metallic silver and metallic magnesium in a mass ratio of 8: 1.
In the display device of this application, the apron layer includes first flexible layer and is located the stereoplasm layer on the first flexible layer, first flexible layer with the stereoplasm layer passes through deposition process and is formed on the luminescent device layer, the light transmissivity of apron layer is 85% ~ 95%.
In the display apparatus of the present application, the display panel further includes an anti-reflection layer between the light emitting device layer and the cover plate layer, the anti-reflection layer being formed on the light emitting device layer through a deposition process.
In the display device of the application, the shell assembly comprises a first shell and a second shell, when the display device displays on a small screen, a first part of the flexible display screen is contained in the first shell, and a second part of the flexible display screen is contained in the second shell.
Has the advantages that: this application utilizes flexible material to form flexible display screen and makes flexible display screen buckle with arbitrary angle to and accomodate flexible display screen through the transmission assembly in the casing subassembly, show with the little screen display of big screen display that realizes display device, reduced greatly flexible display screen's volume has improved the convenience of carrying of product.
Drawings
The technical solution and other advantages of the present application will become apparent from the detailed description of the embodiments of the present application with reference to the accompanying drawings.
FIG. 1 is a structural diagram of a small screen display of a display device of the present application;
FIG. 2 is a structural diagram of a large screen display of the display device of the present application;
FIG. 3 is a diagram of a film structure of a flexible display panel of a display device according to the present application;
FIG. 4 is a schematic diagram of an anode layer of a flexible display panel according to the present application;
FIG. 5 is a first cross-sectional view of a display device of the present application;
fig. 6 is a second cross-sectional view of a display device of the present application.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. It is to be understood that the embodiments described are only a few embodiments of the present application and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
In the description of the present application, it is to be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present application and for simplicity in description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed in a particular orientation, and be operated in a particular manner, and are not to be construed as limiting the present application. Furthermore, the terms "first", "second" and "first" 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, features defined as "first", "second", may explicitly or implicitly include one or more of the described features. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.
In the description of the present application, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; may be mechanically connected, may be electrically connected or may be in communication with each other; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.
In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact of the first and second features, or may comprise contact of the first and second features not directly but through another feature in between. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
The following disclosure provides many different embodiments or examples for implementing different features of the application. In order to simplify the disclosure of the present application, specific example components and arrangements are described below. Of course, they are merely examples and are not intended to limit the present application. Moreover, the present application may repeat reference numerals and/or letters in the various examples, such repetition is for the purpose of simplicity and clarity and does not in itself dictate a relationship between the various embodiments and/or configurations discussed. In addition, examples of various specific processes and materials are provided herein, but one of ordinary skill in the art may recognize applications of other processes and/or use of other materials.
Compared with the traditional screen, the flexible screen has the characteristics of strong flexibility and flexibility, the degree of accidental damage of equipment can be reduced, and the durability degree is far higher than that of other screens. The existing flexible screen can reduce the size of the panel to a certain extent, but still occupies a large space. The present application proposes a display device to solve the above technical problem.
Referring to fig. 1 to 6, the display device 100 includes a housing assembly 10, and a flexible display screen 20 and a transmission assembly 30 located in the housing assembly 10;
when the display device 100 is in the small screen state, the flexible display screen 20 is bent at any angle by the transmission assembly 30 and is received in the housing assembly 10; when the display device 100 is in the large screen state, the flexible display screen 20 is located outside the housing assembly 10.
This application utilizes flexible material to form flexible display screen 20 and makes flexible display screen 20 can buckle with arbitrary angle to and accomodate flexible display screen 20 through drive assembly 30 in the casing subassembly 10, show that the big screen display that realizes display device 100 shows and little screen display, reduced greatly flexible display screen 20's volume has improved the convenience of carrying of product.
The technical solution of the present application will now be described with reference to specific embodiments.
Referring to fig. 1 to 2, the housing assembly 10 may include a first housing 101 and a second housing 102, when the display device 100 displays a small screen, a first portion of the flexible display 20 is received in the first housing 101, and a second portion of the flexible display 20 is received in the second housing 102. The first housing 101 and the second housing 102 can move to the left and right as driving ends, and the size of the flexible display 20 is determined by the moving distance of the first housing 101 and the second housing 102 to the two sides, which can realize any size of the flexible display 20.
In addition, any position of the flexible display screen 20 of the present application may realize folding at any angle, for example, the flexible display screen 20 of the present application may be folded like cloth, and the like.
In the display device 100 of the present application, the flexible display screen 20 includes a substrate 21, a light emitting device layer 22 on the substrate 21, and a cover plate layer 25 on the light emitting device layer 22.
In this embodiment, the light-transmitting regions corresponding to the substrate 21, the light-emitting device layer 22 and the cover plate layer 25 are made of transparent materials.
Referring to fig. 3, the substrate 21 includes a flexible base 211 and a driving circuit layer disposed on the flexible base 211. In this embodiment, the flexible substrate 211 is made of a transparent material, for example, the flexible substrate 211 may be made of a transparent polyimide or the like.
The driving circuit layer may include a plurality of thin film transistors. The thin film transistor may be of an etch-stop type, a back channel etch type, or a top gate thin film transistor type, and the like, and is not particularly limited. The thin film transistor, for example, a top gate thin film transistor type, may include a buffer layer 212 on the flexible substrate 211, an active layer 213 on the buffer layer 212, a gate insulating layer 214 on the active layer 213, a gate layer 215 on the gate insulating layer 214, an interlayer insulating layer 216 on the gate layer 215, a source drain layer 217 on the interlayer insulating layer 216, and a planarization layer 218 on the source drain layer 217.
In the display device 100 of the present application, the light emitting device layer 22 includes an anode layer 221 on the planarization layer 218, a light emitting layer 222 on the anode layer 221, and a cathode layer 223 on the light emitting layer 222.
Referring to fig. 4, the anode layer 221 at least includes a first protection layer 2211, a transmission layer 2212 on the first protection layer 2211, and a second protection layer 2213 on the transmission layer 2212, wherein the transmission layer is covered by the second protection layer 2213 and the first protection layer 2211.
In this embodiment, the anode layer 221 uses three layers of metal for data signal transmission, and the upper and lower protective layers are used to prevent the middle transmission layer from being oxidized by air, so the first protective layer 2211 and the second protective layer 2213 generally use metal with better oxidation resistance, and the transmission layer 2212 needs to have better conductivity because it needs to perform data transmission. In addition, since the flexible display panel 20 of the present application has a transparent property, the first protective layer 2211, the second protective layer 2213, and the transmission layer 2212 need to be made of transparent materials.
In this embodiment, the first protective layer 2211 and the second protective layer 2213 are made of ito, and the transmission layer 2212 is made of ag.
In this embodiment, in order to improve the flexibility of the product, the thickness of the film layer should be reduced as much as possible, and the thickness of the transmission layer 2212 is 90nm to 110 nm.
Referring to fig. 3, the light-emitting layer 222 includes at least three micro light-emitting diodes, and one micro light-emitting diode corresponds to one sub-pixel. The Micro light emitting diode can be a Micro-LED emitting white light or a Micro-LED emitting any one of red, green and blue, and the application is not limited in particular.
In this embodiment, the micro light emitting diode is mainly formed by a bulk transfer technique, i.e., the micro light emitting diode is formed in an external supporting process, and then the prepared micro light emitting diode is transferred to the corresponding sub-pixel on the array substrate.
Referring to fig. 3, the cathode layer 223 may be made of at least two transparent metals, i.e. the flexibility of the cathode layer 223 is ensured while ensuring the transparency of the cathode layer 223.
In this embodiment, the cathode layer 223 may be composed of metallic silver and metallic magnesium, the mass ratio of the metallic silver to the metallic magnesium is 8:1, or the ratio of silver may be continuously increased. The magnesium metal is added in this embodiment to increase the flexibility of the material, and since the outermost side of the cathode layer 223 is stressed first and the bending stress of the region is the largest when the cathode layer 223 is bent, the region is most prone to break, so that the cathode layer 223 can be doped with silver metal in the vertical direction of the cathode layer 223, that is, in the region where the cathode layer 223 is in contact with the adjacent film layer. Alternatively, the content of the metal magnesium is gradually decreased in a direction from the adjacent film layer to the center of the cathode layer 223.
Referring to fig. 3, the display panel further includes a thin film encapsulation layer 23 on the light emitting device layer 22. The thin film encapsulation layer 23 at least includes an inorganic layer and an organic layer stacked together. In this embodiment, the thin film encapsulation layer 23 may include a first inorganic layer 231 on the cathode layer 223, a first organic layer 232 on the first inorganic layer 231, and a second inorganic layer 233 on the first organic layer 232. The first inorganic layer 231 and the second inorganic layer 233 are formed by chemical deposition, and the first organic layer 232 may be formed by inkjet printing.
Referring to fig. 3, the display panel further includes an anti-reflection layer 24 on the thin film encapsulation layer 23. The anti-reflection layer 24 is mainly used for reflecting external white light, and the phenomenon that the external white light enters the panel to influence the display effect of a product is avoided.
In this embodiment, the antireflection layer 24 is used in place of the polarizer layer in the prior art. The polarizer layer is generally adhered to the film layer by an optical adhesive, so the arrangement of the polarizer requires the thickness of the polarizer layer plus the thickness of the existing optical adhesive. In addition, the polarizer needs flexible treatment, and the process is complex. In the present invention, the film encapsulation layer 23 is directly formed by a deposition process, which not only reduces the thickness of the original polarizer layer, but also increases the flexibility of the film layer.
In this embodiment, the position of the anti-reflection layer 24 may also be limited to the surface of the light emitting device layer 22.
Referring to fig. 3, the cover plate layer 25 may include a first flexible layer 251 and a hard layer 252 disposed on the first flexible layer 251, wherein the first flexible layer 251 and the hard layer 252 are formed on the light emitting device layer 22 through a deposition process. Similar to the anti-reflection layer 24, the cover plate layer 25 is directly formed by a deposition process in the present embodiment, which can reduce the thickness of the cover plate layer 25 and increase the flexibility of the cover plate layer 25.
In this embodiment, the first flexible layer 251 may be transparent polyimide.
In the present embodiment, the light transmittance of the cover plate layer 25 is 85% to 95%.
In the display device 100 of the present application, the driving assembly 30 includes at least one reel 31, and the flexible display screen 20 is rolled on the reel 31.
Referring to fig. 5, the driving assembly 30 includes a roller 31, and the flexible display 20 is rolled on the roller 31 when the display device 100 displays a small screen. Alternatively, as shown in fig. 6, when the driving assembly 30 includes three reels 31, the flexible display 20 is rolled on the reels 31 by multiple turns through the offset arrangement of the three reels 31.
In fig. 5 to 6, the display device 100 further includes a stretching layer (not shown) connected to the flexible display screen 20, and the stretching layer is an inactive display area. The material of the stretching layer can be a Sus metal material or an amorphous material with stretch resistance. When the material of the stretching layer is a sus metal material, the thickness of the stretching layer may be 25 to 35 micrometers.
The application provides a display device, which comprises a shell assembly, a flexible display screen and a transmission assembly, wherein the flexible display screen and the transmission assembly are positioned in the shell assembly; when the display device is in a small screen state, the flexible display screen is bent at any angle through the transmission assembly and is contained in the shell assembly; when the display device is in a large screen state, the flexible display screen is positioned outside the shell assembly. This application utilizes flexible material to form flexible display screen and makes flexible display screen buckle with arbitrary angle to and accomodate flexible display screen through the transmission assembly in the casing subassembly, show with the little screen display of big screen display that realizes display device, reduced greatly flexible display screen's volume has improved the convenience of carrying of product.
In the foregoing embodiments, the descriptions of the respective embodiments have respective emphasis, and for parts that are not described in detail in a certain embodiment, reference may be made to related descriptions of other embodiments.
The display device provided by the embodiment of the present application is described in detail above, and the principle and the implementation of the present application are explained in the present application by applying specific examples, and the description of the above embodiment is only used to help understanding the technical solution and the core idea of the present application; those of ordinary skill in the art will understand that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications or substitutions do not depart from the spirit and scope of the present disclosure as defined by the appended claims.
Claims (10)
1. A display device is characterized by comprising a shell assembly, a flexible display screen and a transmission assembly, wherein the flexible display screen and the transmission assembly are positioned in the shell assembly;
when the display device is in a small screen state, the flexible display screen is bent at any angle through the transmission assembly and is contained in the shell assembly; when the display device is in a large screen state, the flexible display screen is positioned outside the shell assembly.
2. The display device according to claim 1, wherein the flexible display screen comprises a substrate, a light emitting device layer located on the substrate, and a cover plate layer located on the light emitting device layer, and the light transmission regions corresponding to the substrate, the light emitting device layer, and the cover plate layer are made of transparent materials.
3. The display device according to claim 2, wherein the light-emitting device layer comprises an anode layer over the substrate, and the anode layer comprises at least a first protective layer, a transmission layer over the first protective layer, and a second protective layer over the transmission layer, and the second protective layer and the first protective layer cover the transmission layer.
4. The display device according to claim 3, wherein the first protective layer and the second protective layer are made of indium tin oxide, the transmission layer is made of silver, and the transmission layer has a thickness of 90nm to 110 nm.
5. The display apparatus of claim 3, wherein the light emitting device layer further comprises a light emitting layer on the anode layer, the light emitting layer comprising at least three micro light emitting diodes.
6. The display device according to claim 5, wherein the light emitting device layer further comprises a cathode layer on the light emitting layer, the cathode layer being composed of at least two transparent metals.
7. The display device according to claim 6, wherein the cathode layer is composed of metallic silver and metallic magnesium in a mass ratio of 8: 1.
8. The display device according to claim 2, wherein the cover plate layer comprises a first flexible layer and a hard layer on the first flexible layer, the first flexible layer and the hard layer are formed on the light emitting device layer by a deposition process, and the cover plate layer has a light transmittance of 85% to 95%.
9. The display device according to claim 2, wherein the display panel further comprises an anti-reflection layer between the light emitting device layer and the cover plate layer, the anti-reflection layer being formed on the light emitting device layer by a deposition process.
10. The display device according to claim 1, wherein the housing assembly comprises a first housing and a second housing, wherein when the display device is small-screen displaying, a first portion of the flexible display screen is received in the first housing, and a second portion of the flexible display screen is received in the second housing.
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| CN202010782823.XA CN112002250B (en) | 2020-08-06 | 2020-08-06 | Display device |
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| CN202010782823.XA CN112002250B (en) | 2020-08-06 | 2020-08-06 | Display device |
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| CN112002250A true CN112002250A (en) | 2020-11-27 |
| CN112002250B CN112002250B (en) | 2022-11-01 |
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Cited By (1)
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| CN113422853A (en) * | 2021-06-23 | 2021-09-21 | 维沃移动通信有限公司 | Electronic device |
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