CN110544432A - Rollable display device - Google Patents
Rollable display device Download PDFInfo
- Publication number
- CN110544432A CN110544432A CN201910792237.0A CN201910792237A CN110544432A CN 110544432 A CN110544432 A CN 110544432A CN 201910792237 A CN201910792237 A CN 201910792237A CN 110544432 A CN110544432 A CN 110544432A
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- CN
- China
- Prior art keywords
- display panel
- flexible display
- housing
- flexible
- circuit board
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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
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
- H10K59/10—OLED displays
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- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
Abstract
The present invention provides a rollable display device, comprising: the display device comprises a flexible display panel, a driving assembly, a first shell and a second shell; the first machine shell is connected with the first end of the flexible display panel and used for accommodating the curled part of the flexible display panel, and the second machine shell is connected with the second end of the flexible display panel and used for accommodating a driving assembly used for driving the flexible display panel. The driving assembly and the flexible display panel are separately arranged, so that the diameter of the curled part of the flexible display panel is reduced, the occupied volume of the curled part in a product is reduced, and the purpose of carrying is achieved.
Description
Technical Field
The invention relates to the technical field of display, in particular to a rollable display device.
Background
Organic Light-Emitting Diodes (OLEDs) use Organic polymeric materials as the semiconductor material in the Light-Emitting diode, which emit Light when a current is passed through the material. The OLED display technology has the self-luminous characteristic, and has the characteristics of wide viewing angle, high contrast, low energy consumption and the like. The flexible display panel is manufactured by manufacturing the OLED on the flexible substrate based on the characteristics of the OLED and then manufacturing the thin film packaging layer on the OLED to block water and oxygen. The OLED flexible display panel reduces the use of backlight, can reduce the thickness of the display panel and simultaneously reduces the weight of the display panel.
As the market demand for flexible displays increases, much attention is paid to research and development of various types of flexible display devices, such as rollable display devices that have been developed for use, expansion of flexible display panels for increased visibility, and small volume after rolling for increased convenience.
The flexible display panel and the driving board of the flexible display device capable of being curled are designed in the curling shaft, so that the radius of the curling part is too large, the size of the whole mechanism is large, and the problems of unchanged use and carrying can be caused.
Disclosure of Invention
The invention mainly solves the technical problem of reducing the overall height of the screen curling mechanism so that the product is convenient to carry.
In order to solve the technical problems, the invention adopts a technical scheme that:
There is provided a rollable display device including: a flexible display panel; a first housing connected to a first end of the flexible display panel, wherein the first housing is configured to receive the curled portion; and the second machine shell is connected with the second end of the flexible display panel, wherein a driving component for driving the flexible display panel is accommodated in the second machine shell.
Wherein the first end of the flexible display panel is opposite the second end.
Wherein a reel is disposed in the first housing, the reel being connected to the first end of the flexible display panel such that the flexible display panel is at least partially rolled up on or unrolled from the reel.
Wherein a guide rail is further disposed in the first chassis, the guide rail surrounding the reel to enable the flexible display panel to be rolled on or unrolled from the reel along the guide rail.
Wherein, a power device is further arranged in the first casing, and the power device is connected with the scroll to drive the scroll to rotate, so that the flexible display panel is rolled on or unrolled from the scroll.
Wherein a guide rail is disposed in the first housing, and the first end of the flexible display panel is disposed on the guide rail and is movable along the guide rail, so that the flexible display panel is at least partially housed in the first housing or unfolded from the first housing.
the first casing is provided with a first end and a second end, wherein the first end is connected with the second end of the flexible display panel, and the second end is connected with the first end of the flexible display panel.
Wherein the drive assembly comprises: the display device comprises a driving circuit board and a flexible circuit board, wherein the driving circuit board is connected with the flexible circuit board, and the flexible circuit board is further connected with the flexible display panel, so that the driving circuit board is connected to the flexible display panel through the flexible circuit board.
wherein the driving assembly further comprises: and the panel chip is arranged on the flexible circuit board and is connected to the flexible display panel through the flexible circuit board.
Wherein, an energy supply device is further arranged in the second casing, and the energy supply device is connected with the driving assembly to supply energy to the flexible display panel through the driving assembly.
The invention has the beneficial effects that: different from the prior art, the rollable display device provided by the invention comprises a flexible display panel, a driving assembly, a first housing and a second housing. Wherein the flexible display panel part is received in the first chassis and is rolled in the first chassis, and the driving assembly part is received in the second chassis. This application sets up drive assembly outside the curled part of flexible display panel to this reduces the diameter of the curled part of flexible display panel, and then makes product portable.
Drawings
FIG. 1 is a schematic diagram of a rollable display device according to a first embodiment of the invention;
FIG. 2 is a schematic diagram of a first embodiment of a first housing of a rollable display device of the present invention;
FIG. 3 is a schematic diagram of a second embodiment of a first housing of a rollable display device of the present invention;
Fig. 4 is a schematic structural diagram of a rollable display device according to a second embodiment of the present invention.
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, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the 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.
the present invention will be described in detail below with reference to the accompanying drawings and examples.
fig. 1 is a schematic structural diagram of a rollable display device according to a first embodiment of the present application. The method comprises the following steps: the display device includes a flexible display panel 100, a driving assembly 200, a first housing 10 and a second housing 20. Wherein the first housing 10 is connected to a first end of the flexible display panel 100, and the first end of the flexible display panel 100 is rolled in the first housing 10, so that the first housing 10 receives a portion of the flexible display panel 100. Specifically, the flexible display panels 100 are sequentially rolled in the first chassis 10 in a direction in which the second chassis 20 is located to roll the flexible display panels 100 in the first chassis 10. The second chassis 20 is connected to a second end of the flexible display panel 100 and is configured to receive a driving assembly 200 for driving the flexible display panel 100. Specifically, the driving assembly 200 is used for driving the flexible display panel 100 to display.
The flexible display panel 100 is a flexible and rollable display panel, and has a first end and a second end
The first housing 10 is coupled and the second end is coupled to the second housing 20. A first end of the flexible display panel 100 connected to the first housing 10 is curled in the first housing 10 toward a direction in which the second housing 20 is located. In another embodiment, a first end of the flexible display panel 100 connected to the first chassis 10 is unfolded in the first chassis in a direction away from the second chassis 20 to unfold the curled portion of the flexible display panel 100. A first end of the flexible display panel 100 connected to the second chassis 20 is connected to a driving assembly driving the flexible display panel 100 within the second chassis 20.
The second housing 20 includes a driving assembly 200 therein, and the driving assembly 200 includes a driving circuit board 203, a flexible circuit board 202 and a panel chip 201.
The driving circuit board 203 is connected to the flexible circuit board 202, and the flexible circuit board 202 is further connected to the flexible display panel 100, so as to connect signals among the driving circuit board 203, the flexible circuit board 202 and the flexible display panel 100. The panel chip 201 is disposed on the flexible wiring board 202, and is signal-connected to the flexible display panel 100 through the flexible wiring board 202.
The panel chip 201 is an OLED driving chip, which may be a general chip or a special chip, and the brightness of the OLED changes with the change of the current magnitude on the premise of saturation conduction. The general-purpose chip is generally used for low-end products of OLED display screens, such as indoor single-color and double-color screens, and the most commonly used general-purpose chip has 8-bit latching, serial-parallel shift register and three-state output functions. The special chip has the biggest characteristic of providing constant current source output, ensuring the stable driving of the OLED and eliminating the flicker phenomenon. The LED display has the characteristics of large output current, constant current and the like, and is suitable for occasions requiring large current and high image quality, such as outdoor full-color screens and indoor full-color screens.
Among them, a Flexible Printed Circuit Board (FPC) 202 (also called a "Flexible Printed Circuit Board") is a Printed Circuit made of a Flexible insulating base material. Flexible circuits provide excellent electrical performance, meet design requirements for smaller and higher density packaging, and also help reduce assembly processes and enhance reliability. The flexible circuit board is the only solution to meet the miniaturization and movement requirements of electronic products. The flexible circuit board 202 can be freely bent, wound and folded, can bear millions of dynamic bending without damaging the lead, can be randomly arranged according to the space layout requirement, and can be randomly moved and stretched in a three-dimensional space, so that the integration of component assembly and lead connection is achieved, the volume and the weight of an electronic product can be greatly reduced by the flexible circuit board 202, and the flexible circuit board is suitable for the development of the electronic product towards high density, miniaturization and high reliability. It is widely used in the fields of spaceflight, military affairs, mobile communication, portable computers, computer peripherals, Personal Digital Assistants (PDA), Digital cameras and the like or products.
The driving circuit board 203 is a motherboard, which is generally a rectangular circuit board, and on which main circuits forming a computing node are mounted, and the system generally includes elements such as a BIOS chip, an I/O control chip, a key and a panel control switch interface, an indicator light socket, an expansion slot, a motherboard, and a direct current power supply connector for a plug-in card. Which is mainly used for algorithm processing and signal transmission to the flexible display panel 100.
In an embodiment, the second housing 20 further comprises a power supply (not shown) connected to the driving assembly 200 for supplying power to the flexible display panel 100 through the driving assembly 200. In an embodiment, the energy supply device is embodied as a battery. In one embodiment, the energy supply device supplies energy to the driving assembly 200, so as to drive the flexible display panel 100 to display.
Fig. 2 is a schematic structural diagram of a first embodiment of a first housing of a rollable display device according to the present application. A scroll 101 is provided in the first housing 10, and the flexible display panel 100 is rolled in the first housing 10 along the scroll 101.
Specifically, a reel 101 is disposed within the first housing 10 and connected to one end of the flexible display panel 100, and the flexible display panel 100 is wound around the reel 101 in a direction in which the second housing 20 is located or unwound along the reel 101 in a direction away from the second housing 20. Specifically, when the flexible display panel 100 is rolled, the rolling direction is toward the second chassis 20. The flexible display panel 100 is unfolded away from the second chassis 20 when unfolded.
Further, a guide rail 102 is provided in the first chassis 10, and the flexible display panel 100 is wound on the reel 101 or unwound from the reel 101 along the guide rail 102.
When the flexible display panel 100 is rolled along the roll 101, the rolled portion falls into the guide rail 102. In particular, the first turn of the crimp falls within the first turn of the track 102 next to the spool 101, the second turn falls within the track 102 adjacent to the first turn, and so on. In this way, after the flexible display panel 100 is rolled, two adjacent turns of the flexible display panel 100 rolled by the guide rail 102 can be separated, so that the flexible display panel 100 can be prevented from being damaged due to contact friction between the two adjacent turns when being rolled or unrolled.
In this embodiment, the diameter of the spool 101 can be set as desired, and can be reduced as much as conditions permit. In addition, after the guide rail 102 is provided, since a gap needs to be left between the guide rail 102 and the guide rail 102, so that each circle of the flexible display panel 100 can fall into the gap after the first housing 10 is curled, the diameter after the curling is inevitably increased compared with the case of not providing the guide rail 102, and therefore, the total number of circles of the guide rail 102 and the thickness of the flexible display panel 100 need to be comprehensively considered when the scroll 101 is provided, so as to obtain the best scheme for reducing the diameter.
In the present embodiment, the diameter of the curled portion of the flexible display panel 100 is determined by the reel 101 and the guide rail 102, and the diameter of the reel 101 can be arbitrarily set as required, so that the diameter of the first housing 10 can be reduced as much as possible, thereby reducing the thickness of the product and facilitating carrying.
In this embodiment, a power device (not shown) may be further disposed, and the power device may be disposed in the first housing 10 or the second housing 20, which depends on the volume of the first housing 10 and the second housing 20, and if the first housing 10 has enough space after the flexible display panel 100 is completely curled, the power device is preferably disposed in the first housing 10. Specifically, the power device may be disposed on the reel 101, and when the power device is operated, the reel 101 is driven to rotate, so as to curl the flexible display panel 100. The power device may be disposed on the first housing 10 and engaged with the reel 101 through a gear set, and when the power device works, the gear set drives the reel 101 to rotate, so as to curl the flexible display panel 100, thereby realizing automatic curling.
Fig. 2 is a schematic structural diagram of a second embodiment of a first housing of a rollable display device according to the present application.
In this embodiment, only the guide rail 102 may be provided in the first chassis 10 without the reel 101, and the flexible display panel 100 is rolled along the guide rail 102 to separate adjacent flexible display panels 100 by the guide rail 102 to prevent the flexible display panel 100 from being damaged by contact friction.
in this embodiment, the diameter of the curled portion may be determined only by the guide rail, and the diameter of the curled portion may be reduced as much as possible while avoiding damage to the flexible display panel 100.
In this embodiment, a power device (not shown) may be provided, and the power device may be disposed in the first housing 10 or the second housing 20, which depends on the volume of the first housing 10 and the second housing 20, and if the first housing 10 has enough space after the flexible display panel 100 is completely curled, the power device is preferably disposed in the first housing 10. Specifically, in the present embodiment, a power device is disposed in the first housing 10 and connected to one end of the flexible display panel 100, and after the power device provides power, the one end of the flexible display panel 100 generates a corresponding force through the power device, so as to pull the flexible display panel to curl along the guide rail 102.
The power device is a device capable of providing power, and may be a motor or an electric motor, and is not limited specifically. It should be noted that the diameter of the reel 101 or the first layer guide rail 102 needs to be smaller than the length of the driving assembly 200, so as to achieve the purpose of reducing the volume of the first housing 10.
Referring to fig. 4, fig. 4 is a schematic structural diagram of a rollable display device according to a second embodiment of the present invention. In the present embodiment, the flexible display panel 100 has a support plate 103 below. Since the support plate 103 is typically a relatively hard material such as a paper substrate, a glass substrate, or a polymer substrate such as silicon oxide, silicon nitride, etc. In order to reduce the diameter of the flexible display panel 100 when it is rolled in the first housing 10, in one embodiment, the support plate 103 is provided as a small support plate 103 divided into a plurality of segments, whereby the support plate 101 can facilitate rolling when the flexible display panel 100 is rolled, thereby reducing the influence on the volume of the rolled portion.
In another embodiment, a reel and a driving device may be disposed on a side of the support plate 103 away from the flexible display panel 100, the reel is further connected to the support plate 103, and the power device is disposed on the reel or connected to the reel. When the flexible display panel 100 is curled in the first chassis 10, the support plate 103 is curled in a direction in which the reel is beyond the first chassis 10 by the driving of the power device at the side away from the flexible display panel 100. To separate the flexible display panel 100 from the support plate 103 to further reduce the volume of the curled portion.
in this embodiment, the supporting plate 103 may be further divided into a plurality of small supporting plates 103 that are not connected to each other, so that the supporting plate 103 can be easily curled.
In the embodiments of the present application, only some related structures of the rollable display device are described, and other structures are the same as the structure of the rollable display device in the prior art, and are not described herein again.
The application provides a can roll up display device with drive assembly (driver circuit board and flexible line way board, panel chip) separately set up with flexible display panel, be about to drive assembly (driver circuit board and flexible line way board, panel chip) set up in the second casing, set up flexible display panel in first casing, and set up spool and/or guide rail in first casing, the diameter of flexible display panel crimp position department is decided by spool and/or guide rail, inside avoiding traditional set up flexible display device crimp position with drive assembly, the diameter of restriction crimp position. Thereby reducing the occupied area of the curling part in the exhibit and achieving the purpose of convenient carrying.
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (10)
1. A rollable display device, comprising:
A flexible display panel;
A first housing connected to a first end of the flexible display panel, wherein the first housing is configured to receive a curled portion of the flexible display panel;
And the second machine shell is connected with the second end of the flexible display panel, wherein a driving component for driving the flexible display panel is accommodated in the second machine shell.
2. A rollable display device according to claim 1, wherein the first end of the flexible display panel is opposite the second end.
3. A rollable display device according to claim 1, wherein a spool is provided within the first housing, the spool connecting the first end of the flexible display panel to at least partially roll the flexible display panel on or off the spool.
4. The rollable display device of claim 3, wherein a rail is further disposed within the first housing, the rail surrounding the roll shaft to allow the flexible display panel to be rolled on or unrolled from the roll shaft along the rail.
5. A rollable display device according to claim 3, wherein a power device is further disposed within the first housing, the power device being connected to the roller to drive the roller to rotate, thereby causing the flexible display panel to be rolled onto or unrolled from the roller.
6. a rollable display device according to claim 1, wherein a guide rail is provided within the first housing, the first end of the flexible display panel being disposed on and movable along the guide rail to cause the flexible display panel to be at least partially received within or deployed from the first housing.
7. A rollable display device according to claim 6, wherein a power device is further disposed within the first housing, the power device being coupled to a first end of the flexible display panel to drive the flexible display panel to move along the guide rail.
8. A rollable display device according to claim 1, wherein the drive assembly comprises: the display device comprises a driving circuit board and a flexible circuit board, wherein the driving circuit board is connected with the flexible circuit board, and the flexible circuit board is further connected with the flexible display panel, so that the driving circuit board is connected to the flexible display panel through the flexible circuit board.
9. The rollable display device of claim 8, wherein the drive assembly further comprises: and the panel chip is arranged on the flexible circuit board and is connected to the flexible display panel through the flexible circuit board.
10. The rollable display device according to claim 1, wherein an energy providing device is further disposed in the second housing, the energy providing device being connected to the driving assembly to provide energy to the flexible display panel by the driving assembly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910792237.0A CN110544432A (en) | 2019-08-26 | 2019-08-26 | Rollable display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910792237.0A CN110544432A (en) | 2019-08-26 | 2019-08-26 | Rollable display device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110544432A true CN110544432A (en) | 2019-12-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910792237.0A Pending CN110544432A (en) | 2019-08-26 | 2019-08-26 | Rollable display device |
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| Country | Link |
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| CN (1) | CN110544432A (en) |
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| CN111508362A (en) * | 2020-04-28 | 2020-08-07 | 合肥维信诺科技有限公司 | Display device |
| CN112164319A (en) * | 2020-10-14 | 2021-01-01 | 武汉华星光电半导体显示技术有限公司 | Reel and rollable display device |
| CN112599021A (en) * | 2021-01-06 | 2021-04-02 | 武汉华星光电半导体显示技术有限公司 | Display device |
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Application publication date: 20191206 |