US20190019846A1 - Flexible display device - Google Patents
Flexible display device Download PDFInfo
- Publication number
- US20190019846A1 US20190019846A1 US16/133,567 US201816133567A US2019019846A1 US 20190019846 A1 US20190019846 A1 US 20190019846A1 US 201816133567 A US201816133567 A US 201816133567A US 2019019846 A1 US2019019846 A1 US 2019019846A1
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- United States
- Prior art keywords
- support plate
- display module
- base portion
- display device
- display
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
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Classifications
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- 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
- H10K59/40—OLEDs integrated with touch screens
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F3/0412—Digitisers structurally integrated in a display
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- H01L27/323—
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/02—Constructional features of telephone sets
- H04M1/0202—Portable telephone sets, e.g. cordless phones, mobile phones or bar type handsets
- H04M1/026—Details of the structure or mounting of specific components
- H04M1/0266—Details of the structure or mounting of specific components for a display module assembly
- H04M1/0268—Details of the structure or mounting of specific components for a display module assembly including a flexible display panel
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- H01L2251/5338—
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K2102/00—Constructional details relating to the organic devices covered by this subclass
- H10K2102/301—Details of OLEDs
- H10K2102/311—Flexible OLED
Definitions
- the described technology relates generally to a display device, and more particularly, to a display device having a support structure that supports a display module having a variable screen.
- LCD liquid crystal display
- PDP plasma display panel
- OLED organic light emitting diode
- FED field effect display
- electrophoretic display device and the like.
- laminated layers of the display device may include a display panel including a thin film transistor layer and an emission layer, a polarization film on the display panel, and/or a touch screen panel (TSP). At the outmost portion of the display device, these layers are encapsulated by using a transparent window to prevent external moisture or oxygen from penetrating.
- TSP touch screen panel
- the display device includes a wrappable or rollable display module, and when the display module is unrolled, a lower auxiliary structure partially supports the display module, and the screen shape is maintained, but if a user touches, pushes, or presses the screen, there may be damage caused to the display device.
- An exemplary embodiment provides a display device to which a display module support structure that supports or fixes the display module to the upper surface of the display device, thereby maintaining a screen shape, and preventing damage to the screen from pushing or pressing due to a user touch operation.
- a display device includes a base portion, a first support plate slidably coupled to the base portion, and configured to support a display module, a second support plate below the first support plate and hinge-combined to the base portion to be vertically rotatable with movement of the first support plate, and configured to support the display module, and an elastic member between the base portion and the second support plate, and configured to provide an elastic force to rotate the second support plate upward with movement of the first support plate.
- the base portion may include an inclined side therein, and the display module may be configured to slide along the inclined side.
- the first support plate may be configured to slide along an opening in a side surface of the base portion.
- the elastic member may include a spring.
- the elastic member may be between an inner surface of the base portion and the bottom surface of the second support plate.
- One end of the elastic member is coupled to an elastic member fixing protrusion at the inner surface of the base portion, and another end of the elastic member may be supported by the bottom surface of the second support plate.
- the display device may further include a separation prevention hook at an upper edge of the first support plate that is configured to prevent separation of the display module.
- the first support plate may include a first locking portion protruding downward from an end of the first support plate
- the second support plate may include a second locking portion protruding downward from an edge of the second support plate
- the display module may be configured to be opened by moving the first support plate with respect to the base, causing the first locking portion and the second locking portion to engage, and thereby leveling the second support plate with the first support plate.
- the first support plate and the second support plate may be configured to horizontally support the display module when the display module is opened.
- the display module may include a rollable panel.
- the base portion may include a curved outer surface for rolling of the display module.
- the display module may include a flexible display substrate, a display element layer may include a plurality of pixels on the flexible display substrate, a thin film encapsulation layer covering the display substrate and the display element layer, and a touch panel on the thin film encapsulation layer.
- the display element layer may include an organic light emission element.
- the display device may further include a window layer on the thin film encapsulation layer.
- the window layer may include a plastic substrate made of polyimide (PI) or polyethylene terephthalate (PET).
- PI polyimide
- PET polyethylene terephthalate
- a variable screen of the display device can be expanded, the screen shape can be maintained when the screen is expanded, and the screen can be prevented from being damaged due to a screen touch operation of a user.
- FIGS. 1A and 1B schematically illustrate a perspective view of a display device before opening a display module according to an exemplary embodiment.
- FIGS. 2A and 2B schematically illustrate a perspective view of the display device after opening the display module according to the exemplary embodiment.
- FIG. 3 schematically illustrates an exploded perspective view of the display device according to the exemplary embodiment.
- FIG. 4 schematically illustrates a cross-sectional view of the display device according to the exemplary embodiment.
- FIG. 5A schematically illustrates a cross-sectional view of the display device before opening the display module according to the exemplary embodiment.
- FIG. 5B schematically illustrates a cross-sectional view of the display device after partially opening the display module according to the exemplary embodiment.
- FIG. 5C schematically illustrates the display device after partial expansion of the display module according to the exemplary embodiment.
- FIG. 5D schematically illustrates a cross-sectional view of the display device after complete expansion of the display module according to the exemplary embodiment.
- FIG. 6A schematically illustrates a cross-sectional view of the display device after complete expansion of the display module according to the exemplary embodiment.
- FIG. 6B schematically illustrates a cross-sectional view of the display device after partially closing of the display module according to the exemplary embodiment.
- FIG. 6C schematically illustrates a cross-sectional view of the display device after partially closing of the display module according to the exemplary embodiment.
- FIG. 6D schematically illustrates a cross-sectional view of the display device after complete closing of the display module according to the exemplary embodiment.
- spatially relative terms such as “beneath,” “below,” “lower,” “under,” “above,” “upper,” and the like, may be used herein for ease of explanation to describe one element or feature's relationship to another element(s) or feature(s) as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or in operation, in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as “below” or “beneath” or “under” other elements or features would then be oriented “above” the other elements or features. Thus, the example terms “below” and “under” can encompass both an orientation of above and below. The device may be otherwise oriented (e.g., rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein should be interpreted accordingly.
- the term “substantially,” “about,” and similar terms are used as terms of approximation and not as terms of degree, and are intended to account for the inherent deviations in measured or calculated values that would be recognized by those of ordinary skill in the art. Further, the use of “may” when describing embodiments of the present invention refers to “one or more embodiments of the present invention.” As used herein, the terms “use,” “using,” and “used” may be considered synonymous with the terms “utilize,” “utilizing,” and “utilized,” respectively. Also, the term “exemplary” is intended to refer to an example or illustration.
- the electronic or electric devices and/or any other relevant devices or components according to embodiments of the present invention described herein may be implemented utilizing any suitable hardware, firmware (e.g. an application-specific integrated circuit), software, or a combination of software, firmware, and hardware.
- the various components of these devices may be formed on one integrated circuit (IC) chip or on separate IC chips.
- the various components of these devices may be implemented on a flexible printed circuit film, a tape carrier package (TCP), a printed circuit board (PCB), or formed on one substrate.
- the various components of these devices may be a process or thread, running on one or more processors, in one or more computing devices, executing computer program instructions and interacting with other system components for performing the various functionalities described herein.
- the computer program instructions are stored in a memory which may be implemented in a computing device using a standard memory device, such as, for example, a random access memory (RAM).
- the computer program instructions may also be stored in other non-transitory computer readable media such as, for example, a CD-ROM, flash drive, or the like.
- a person of skill in the art should recognize that the functionality of various computing devices may be combined or integrated into a single computing device, or the functionality of a particular computing device may be distributed across one or more other computing devices without departing from the spirit and scope of the exemplary embodiments of the present invention.
- FIGS. 1A, 1B, 2A, and 2B a display device according to an exemplary embodiment will be described with reference to FIGS. 1A, 1B, 2A, and 2B .
- FIGS. 1A and 1B schematically illustrate a perspective view of a display device before opening a display module according to an exemplary embodiment
- FIGS. 2A and 2B schematically illustrate the display device after opening the display module according to the exemplary embodiment.
- a display device includes a base portion 30 , a first support plate 10 , and a second support plate 20 .
- the base portion 30 provides a space into which a display module 40 slides.
- the first support plate 10 is slidably combined to the base portion 30 , and supports the display module 40 with an upper surface thereof.
- the second support plate 20 is located below the first support plate 10 (when the display module 40 is closed), and is hinge-combined to the base portion 30 to be vertically rotatable along with movement of the first support plate 10 , and supports the display module 40 .
- the second support plate 20 overlaps a lower portion of the first support plate 10 , and the base portion 30 is covered by a base case 50 of the base portion.
- the first support plate 10 slides to the outer side along an opening 32 (refer to FIG. 3 ) formed in the base portion 30 , and the second support plate 20 is wholly exposed to be in parallel with, or substantially level with, the first support plate 10 .
- An external portion of the base portion 30 is covered by the base case 50 .
- FIG. 3 schematically illustrates an exploded perspective view of the display device according to the exemplary embodiment.
- the base portion 30 may have an inclined side formed therein, and the display module 40 may slidably move within the base portion 30 along an outer surface of the inclined side.
- the first support plate 10 is slidably combined to the base portion 30 along the opening 32 formed in a side surface of the base portion 30 .
- the first support plate 10 includes a first locking portion 12 protruding to a lower outer side from an end of the first support plate 10 .
- the first locking portion 12 is inserted into the opening 32 formed in the side surface of the base portion 30 , and thus, as the first support plate 10 slidably moves, the opening 32 guides movement of the first support plate 10 , and the first locking portion 12 prevents the first support plate 10 from being separated from the base portion 30 .
- a separation prevention hook 14 that prevents separation of the display module 40 may be provided at an upper edge of the base portion 30 .
- the second support plate 20 is located below the first support plate 10 , and may vertically rotate along with movement of the first support plate 10 by being hinge-combined to the base portion 30 .
- the second support plate 20 is combined to a hinge shaft 24 , and the hinge shaft 24 is combined to a hinge opening 34 such that the second support plate 20 can vertically rotate about the axis of the hinge shaft 24 .
- the first support plate 10 is completely opened, the second support plate 20 is exposed to the outside so as to be maintained in parallel with (e.g., substantially level with) the first support plate 10 , and when the first support plate 10 is completely closed, the second support plate 20 is located below the first support plate 10 .
- an elastic member 60 may be provided between the base portion 30 and the second support plate 20 .
- the elastic member 60 provides elastic force such that the second support plate 20 can rotate upward along with movement of the first support plate 10 .
- the elastic member 60 may be formed of a spring.
- the elastic member 60 may be provided between an inner surface of the base portion 30 and a bottom surface of the second support plate 20 . That is, when the first support plate 10 is completely closed, the first support plate 10 presses the second support plate 20 and a force is applied to the upper side of the elastic member 60 .
- the pressure to the second support plate 20 from the first support plate 10 is weakened and thus the elastic member 60 pushes the second support plate 20 upward to make the second support plate 20 rotate upward, and when the first support plate 10 is completely opened, the first support plate 10 and the second support 20 become parallel (e.g., substantially level) with each other and support the display module 40 .
- FIG. 4 schematically illustrates a cross-sectional view of the display device according to the exemplary embodiment.
- one end of the elastic member 60 may be fitted into an elastic member fixing protrusion 62 provided at an inner surface of the base portion 30 , and the end of the elastic member 60 may be fixed by being supported by the bottom surface of the second support plate 20 .
- the other end of the elastic member 60 may be fitted into another elastic member fixing protrusion formed at the bottom surface of the second support plate 20 .
- the first support plate 10 includes the first locking portion 12 protruding downward from an end of the first support plate 10
- the second support plate 20 includes a second locking portion 22 protruding downward from an end of the second support plate 20 .
- FIG. 5A schematically illustrates a cross-sectional view of the display device before the display module is opened according to the exemplary embodiment
- FIG. 5B and FIG. 5C schematically illustrate cross-sectional views of the display device after the display module is partially opened according to the exemplary embodiment
- FIG. 5D illustrates a cross-sectional view of the display device after the display module is completely opened according to the exemplary embodiment.
- the second support plate 20 is located below the first support plate 10 , and the first support 10 presses the second support plate 20 , and thus pressure from the second support plate 20 is applied to an upper portion of the elastic member 60 (e.g., to compress the elastic member 60 , refer to FIG. 5A ).
- the first support plate 10 slides along the opening 32 formed in the side surface of the base portion 30 , and thus the pressure applied to the second support plate 20 from the first support plate 10 is gradually weakened or reduced. Accordingly, the elastic member 60 pushes the second support plate 20 upward, and the second support plate 20 rotates upward with respect to the hinge shaft 24 .
- the display module 40 gradually moves along the outer surface of the base portion 30 (refer to FIG. 5B ).
- the first locking portion 12 protruding downward from the end of the first support plate 10 and the second locking portion 22 protruding downward from the end of the second support plate 20 are engaged with each other.
- the second support plate 20 rotates no further upward due to the elastic member 60 (refer to FIG. 5C ).
- the first locking portion 12 and the second locking portion 22 are engaged with each other, and thus they are located at locations where they cannot be separated from each other, and a pressure is applied to a lower side of the elastic member 60 such that an upward supporting force of the first locking portion 12 and a compressive force applied to a lower side of the elastic member 60 are balanced such that the display module 40 becomes substantially level.
- FIG. 6A schematically illustrates a cross-sectional view of the display device after the display module is completely opened according to the exemplary embodiment
- FIG. 6B and FIG. 6C schematically illustrate the display device after the display module is partially closed according to the exemplary embodiment
- FIG. 6D schematically illustrates the display device after the display module is completely closed according to the exemplary embodiment.
- the first support plate 10 and the second support plate 20 are maintained in the parallel state/substantially level state, and the first locking portion 12 and the second locking portion 22 are engaged with each other such that an upward supporting force of the first locking portion 12 and a compressive force applied to a lower side of the elastic member 60 are balanced such that the display module 40 becomes substantially level ( FIG. 6A ).
- the second support plate 20 is slightly pressed down by the first support plate 10 , and the compressive force of the elastic member 60 is weakened or canceled by the opposing force of the first support plate 10 ( FIG. 6B ).
- the first support plate 10 slides along the opening 32 formed in the side surface of the base portion 30 such that the first support plate 10 presses the second support plate 20 with stronger force. Accordingly, the elastic member 60 pushes the second support plate 20 upward with stronger force ( FIG. 6C ).
- the second support plate 20 is located below the first support plate 10 , the first support plate 10 presses the second support plate 20 downward, and the elastic member 60 pushes the second support plate 20 upward.
- the size of the first support plate 10 and the size of the second support plate 20 may be changed according to the degree of sliding of the display module 40 . Further, a horizontal to vertical ratio of the display module 40 in the completely closed state and a horizontal to vertical ratio of the display module 40 in the completely opened state may be respectively set to 4:3 and 16:9, or respectively 1:1 and 16:9.
- the display module 40 may be a rollable module.
- the base portion 30 may have a semi-circular, curved, or bent outer surface for rolling of the display module 40 .
- the display module 40 may be a flexible display device that includes a flexible display substrate, a display element layer formed on the flexible display substrate and including a plurality of pixels, a thin film encapsulation layer covering the display substrate and the display element layer for protection, or a touch panel formed on the thin film encapsulation layer.
- the display element layer is formed on the display substrate, and includes an element area where an active element is located, such as a thin film transistor, and an emission area where an emission layer is formed.
- the element area and the emission area may be distanced from each other, or may overlap each other.
- the display element layer may include an organic emission display element.
- a window layer may be formed on the thin film encapsulation layer, and the window layer may be a plastic substrate made of polyimide (PI) or polyethylene terephthalate (PET).
- PI polyimide
- PET polyethylene terephthalate
- a functional layer may be provided between the thin film encapsulation layer and the window layer.
- the functional layer may be formed of a phase delay film.
- the phase delay film may be a A/4 phase delay film, and serves to change linear polarization to circular polarization, or to change circular polarization to linear polarization.
- the phase delay film may be a birefringence film that is made by performing stretching treatment on a film made of suitable polymers, such as polycarbonate or polyvinyl alcohol, polystyrene or polymethyl methacrylate, polypropylene or another polyolefin, and polyarylate or polyamide, an oriented film of a liquid crystal polymer, a film supporting an oriented layer of a liquid crystal polymer, and the like.
- the phase delay film may be made of a Zeonor or Arton resin.
- the functional layer may be made of a polarizer.
- the polarizer may reduce the thickness and improve the image visibility, while securing the flexibility characteristic.
- the display device enables screen expansion of a variable screen and the screen shape can be maintained when the screen is expanded, and the screen can be prevented from being pushed or pressed by screen touch operation of a user.
- first support plate 20 second support plate 30: base portion 40: display module 50: base case 60: elastic member 12: first locking portion 14: separation prevention hook 22: second locking portion 24: hinge shaft 32: opening 34: hinge opening 62: elastic member fixing protrusion
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Abstract
A display device according to an exemplary embodiment includes a base portion, a first support plate slidably coupled to the base portion, and configured to support a display module, a second support plate below the first support plate and hinge-combined to the base portion to be vertically rotatable with movement of the first support plate, and configured to support the display module, and an elastic member between the base portion and the second support plate, and configured to provide an elastic force to rotate the second support plate upward with movement of the first support plate.
Description
- This application is a continuation of U.S. patent application Ser. No. 14/946,709, filed Nov. 19, 2015, which claims priority to and the benefit of Korean Patent Application No. 10-2015-0058115, filed Apr. 24, 2015, the entire content of both of which is incorporated herein by reference.
- The described technology relates generally to a display device, and more particularly, to a display device having a support structure that supports a display module having a variable screen.
- Presently known flat display devices include a liquid crystal display (LCD), a plasma display panel (PDP), an organic light emitting diode (OLED) device, a field effect display (FED), an electrophoretic display device, and the like.
- Generally, laminated layers of the display device may include a display panel including a thin film transistor layer and an emission layer, a polarization film on the display panel, and/or a touch screen panel (TSP). At the outmost portion of the display device, these layers are encapsulated by using a transparent window to prevent external moisture or oxygen from penetrating.
- In the case of a flexible display device having a variable screen, the display device includes a wrappable or rollable display module, and when the display module is unrolled, a lower auxiliary structure partially supports the display module, and the screen shape is maintained, but if a user touches, pushes, or presses the screen, there may be damage caused to the display device.
- The above information disclosed in this Background section is only for enhancement of understanding of the background of the described technology, and therefore it may contain information that does not form the prior art that is already known in this country to a person of ordinary skill in the art.
- An exemplary embodiment provides a display device to which a display module support structure that supports or fixes the display module to the upper surface of the display device, thereby maintaining a screen shape, and preventing damage to the screen from pushing or pressing due to a user touch operation.
- A display device according to an exemplary embodiment includes a base portion, a first support plate slidably coupled to the base portion, and configured to support a display module, a second support plate below the first support plate and hinge-combined to the base portion to be vertically rotatable with movement of the first support plate, and configured to support the display module, and an elastic member between the base portion and the second support plate, and configured to provide an elastic force to rotate the second support plate upward with movement of the first support plate.
- The base portion may include an inclined side therein, and the display module may be configured to slide along the inclined side.
- The first support plate may be configured to slide along an opening in a side surface of the base portion.
- The elastic member may include a spring.
- The elastic member may be between an inner surface of the base portion and the bottom surface of the second support plate.
- One end of the elastic member is coupled to an elastic member fixing protrusion at the inner surface of the base portion, and another end of the elastic member may be supported by the bottom surface of the second support plate.
- The display device may further include a separation prevention hook at an upper edge of the first support plate that is configured to prevent separation of the display module.
- The first support plate may include a first locking portion protruding downward from an end of the first support plate, the second support plate may include a second locking portion protruding downward from an edge of the second support plate, and the display module may be configured to be opened by moving the first support plate with respect to the base, causing the first locking portion and the second locking portion to engage, and thereby leveling the second support plate with the first support plate.
- The first support plate and the second support plate may be configured to horizontally support the display module when the display module is opened.
- The display module may include a rollable panel.
- The base portion may include a curved outer surface for rolling of the display module.
- The display module may include a flexible display substrate, a display element layer may include a plurality of pixels on the flexible display substrate, a thin film encapsulation layer covering the display substrate and the display element layer, and a touch panel on the thin film encapsulation layer.
- The display element layer may include an organic light emission element.
- The display device may further include a window layer on the thin film encapsulation layer.
- The window layer may include a plastic substrate made of polyimide (PI) or polyethylene terephthalate (PET).
- According to the exemplary embodiment, a variable screen of the display device can be expanded, the screen shape can be maintained when the screen is expanded, and the screen can be prevented from being damaged due to a screen touch operation of a user.
-
FIGS. 1A and 1B schematically illustrate a perspective view of a display device before opening a display module according to an exemplary embodiment. -
FIGS. 2A and 2B schematically illustrate a perspective view of the display device after opening the display module according to the exemplary embodiment. -
FIG. 3 schematically illustrates an exploded perspective view of the display device according to the exemplary embodiment. -
FIG. 4 schematically illustrates a cross-sectional view of the display device according to the exemplary embodiment. -
FIG. 5A schematically illustrates a cross-sectional view of the display device before opening the display module according to the exemplary embodiment. -
FIG. 5B schematically illustrates a cross-sectional view of the display device after partially opening the display module according to the exemplary embodiment. -
FIG. 5C schematically illustrates the display device after partial expansion of the display module according to the exemplary embodiment. -
FIG. 5D schematically illustrates a cross-sectional view of the display device after complete expansion of the display module according to the exemplary embodiment. -
FIG. 6A schematically illustrates a cross-sectional view of the display device after complete expansion of the display module according to the exemplary embodiment. -
FIG. 6B schematically illustrates a cross-sectional view of the display device after partially closing of the display module according to the exemplary embodiment. -
FIG. 6C schematically illustrates a cross-sectional view of the display device after partially closing of the display module according to the exemplary embodiment. -
FIG. 6D schematically illustrates a cross-sectional view of the display device after complete closing of the display module according to the exemplary embodiment. - Features of the inventive concept and methods of accomplishing the same may be understood more readily by reference to the following detailed description of embodiments and the accompanying drawings. The inventive concept may, however, be embodied in many different forms and should not be construed as being limited to the embodiments set forth herein. Hereinafter, example embodiments will be described in more detail with reference to the accompanying drawings, in which like reference numbers refer to like elements throughout. The present invention, however, may be embodied in various different forms, and should not be construed as being limited to only the illustrated embodiments herein. Rather, these embodiments are provided as examples so that this disclosure will be thorough and complete, and will fully convey the aspects and features of the present invention to those skilled in the art. Accordingly, processes, elements, and techniques that are not necessary to those having ordinary skill in the art for a complete understanding of the aspects and features of the present invention may not be described. Unless otherwise noted, like reference numerals denote like elements throughout the attached drawings and the written description, and thus, descriptions thereof will not be repeated. In the drawings, the relative sizes of elements, layers, and regions may be exaggerated for clarity.
- It will be understood that, although the terms “first,” “second,” “third,” etc., may be used herein to describe various elements, components, regions, layers and/or sections, these elements, components, regions, layers and/or sections should not be limited by these terms. These terms are used to distinguish one element, component, region, layer or section from another element, component, region, layer or section. Thus, a first element, component, region, layer or section described below could be termed a second element, component, region, layer or section, without departing from the spirit and scope of the present invention.
- Spatially relative terms, such as “beneath,” “below,” “lower,” “under,” “above,” “upper,” and the like, may be used herein for ease of explanation to describe one element or feature's relationship to another element(s) or feature(s) as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or in operation, in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as “below” or “beneath” or “under” other elements or features would then be oriented “above” the other elements or features. Thus, the example terms “below” and “under” can encompass both an orientation of above and below. The device may be otherwise oriented (e.g., rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein should be interpreted accordingly.
- It will be understood that when an element or layer is referred to as being “on,” “connected to,” or “coupled to” another element or layer, it can be directly on, connected to, or coupled to the other element or layer, or one or more intervening elements or layers may be present. In addition, it will also be understood that when an element or layer is referred to as being “between” two elements or layers, it can be the only element or layer between the two elements or layers, or one or more intervening elements or layers may also be present.
- The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the present invention. As used herein, the singular forms “a,” “an,” and “the” are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms “comprises,” “comprising,” “includes,” and “including,” when used in this specification, specify the presence of the stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof. As used herein, the term “and/or” includes any and all combinations of one or more of the associated listed items. Expressions such as “at least one of,” when preceding a list of elements, modify the entire list of elements and do not modify the individual elements of the list.
- As used herein, the term “substantially,” “about,” and similar terms are used as terms of approximation and not as terms of degree, and are intended to account for the inherent deviations in measured or calculated values that would be recognized by those of ordinary skill in the art. Further, the use of “may” when describing embodiments of the present invention refers to “one or more embodiments of the present invention.” As used herein, the terms “use,” “using,” and “used” may be considered synonymous with the terms “utilize,” “utilizing,” and “utilized,” respectively. Also, the term “exemplary” is intended to refer to an example or illustration.
- The electronic or electric devices and/or any other relevant devices or components according to embodiments of the present invention described herein may be implemented utilizing any suitable hardware, firmware (e.g. an application-specific integrated circuit), software, or a combination of software, firmware, and hardware. For example, the various components of these devices may be formed on one integrated circuit (IC) chip or on separate IC chips. Further, the various components of these devices may be implemented on a flexible printed circuit film, a tape carrier package (TCP), a printed circuit board (PCB), or formed on one substrate. Further, the various components of these devices may be a process or thread, running on one or more processors, in one or more computing devices, executing computer program instructions and interacting with other system components for performing the various functionalities described herein. The computer program instructions are stored in a memory which may be implemented in a computing device using a standard memory device, such as, for example, a random access memory (RAM). The computer program instructions may also be stored in other non-transitory computer readable media such as, for example, a CD-ROM, flash drive, or the like. Also, a person of skill in the art should recognize that the functionality of various computing devices may be combined or integrated into a single computing device, or the functionality of a particular computing device may be distributed across one or more other computing devices without departing from the spirit and scope of the exemplary embodiments of the present invention.
- Unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which the present invention belongs. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the relevant art and/or the present specification, and should not be interpreted in an idealized or overly formal sense, unless expressly so defined herein.
- Various modifications of the exemplary embodiments as depicted in the drawings are anticipated. Therefore, the exemplary embodiments are not limited to a specific form of an illustrated region, and, for example, include modifications of a manufactured form.
- Hereinafter, a display device according to an exemplary embodiment will be described with reference to
FIGS. 1A, 1B, 2A, and 2B . -
FIGS. 1A and 1B schematically illustrate a perspective view of a display device before opening a display module according to an exemplary embodiment, andFIGS. 2A and 2B schematically illustrate the display device after opening the display module according to the exemplary embodiment. - Referring to
FIGS. 1A, 1B, 2A, and 2B , a display device includes abase portion 30, afirst support plate 10, and asecond support plate 20. Thebase portion 30 provides a space into which adisplay module 40 slides. Thefirst support plate 10 is slidably combined to thebase portion 30, and supports thedisplay module 40 with an upper surface thereof. Thesecond support plate 20 is located below the first support plate 10 (when thedisplay module 40 is closed), and is hinge-combined to thebase portion 30 to be vertically rotatable along with movement of thefirst support plate 10, and supports thedisplay module 40. - As shown in
FIGS. 1A and 1B , before thedisplay module 40 is opened, thesecond support plate 20 overlaps a lower portion of thefirst support plate 10, and thebase portion 30 is covered by abase case 50 of the base portion. Further, as shown inFIGS. 2A and 2B , after thedisplay module 40 is opened (e.g., the screen, or display device, is expanded), thefirst support plate 10 slides to the outer side along an opening 32 (refer toFIG. 3 ) formed in thebase portion 30, and thesecond support plate 20 is wholly exposed to be in parallel with, or substantially level with, thefirst support plate 10. An external portion of thebase portion 30 is covered by thebase case 50. -
FIG. 3 schematically illustrates an exploded perspective view of the display device according to the exemplary embodiment. - Referring to
FIG. 3 , thebase portion 30 may have an inclined side formed therein, and thedisplay module 40 may slidably move within thebase portion 30 along an outer surface of the inclined side. - The
first support plate 10 is slidably combined to thebase portion 30 along theopening 32 formed in a side surface of thebase portion 30. Thefirst support plate 10 includes afirst locking portion 12 protruding to a lower outer side from an end of thefirst support plate 10. Thefirst locking portion 12 is inserted into theopening 32 formed in the side surface of thebase portion 30, and thus, as thefirst support plate 10 slidably moves, theopening 32 guides movement of thefirst support plate 10, and thefirst locking portion 12 prevents thefirst support plate 10 from being separated from thebase portion 30. In addition, aseparation prevention hook 14 that prevents separation of thedisplay module 40 may be provided at an upper edge of thebase portion 30. - The
second support plate 20 is located below thefirst support plate 10, and may vertically rotate along with movement of thefirst support plate 10 by being hinge-combined to thebase portion 30. Thesecond support plate 20 is combined to ahinge shaft 24, and thehinge shaft 24 is combined to ahinge opening 34 such that thesecond support plate 20 can vertically rotate about the axis of thehinge shaft 24. When thefirst support plate 10 is completely opened, thesecond support plate 20 is exposed to the outside so as to be maintained in parallel with (e.g., substantially level with) thefirst support plate 10, and when thefirst support plate 10 is completely closed, thesecond support plate 20 is located below thefirst support plate 10. - Meanwhile, an
elastic member 60 may be provided between thebase portion 30 and thesecond support plate 20. Theelastic member 60 provides elastic force such that thesecond support plate 20 can rotate upward along with movement of thefirst support plate 10. Theelastic member 60 may be formed of a spring. Theelastic member 60 may be provided between an inner surface of thebase portion 30 and a bottom surface of thesecond support plate 20. That is, when thefirst support plate 10 is completely closed, thefirst support plate 10 presses thesecond support plate 20 and a force is applied to the upper side of theelastic member 60. When thefirst support plate 10 is opened, the pressure to thesecond support plate 20 from thefirst support plate 10 is weakened and thus theelastic member 60 pushes thesecond support plate 20 upward to make thesecond support plate 20 rotate upward, and when thefirst support plate 10 is completely opened, thefirst support plate 10 and thesecond support 20 become parallel (e.g., substantially level) with each other and support thedisplay module 40. -
FIG. 4 schematically illustrates a cross-sectional view of the display device according to the exemplary embodiment. Referring toFIG. 4 , one end of theelastic member 60 may be fitted into an elasticmember fixing protrusion 62 provided at an inner surface of thebase portion 30, and the end of theelastic member 60 may be fixed by being supported by the bottom surface of thesecond support plate 20. The other end of theelastic member 60 may be fitted into another elastic member fixing protrusion formed at the bottom surface of thesecond support plate 20. - The
first support plate 10 includes thefirst locking portion 12 protruding downward from an end of thefirst support plate 10, and thesecond support plate 20 includes asecond locking portion 22 protruding downward from an end of thesecond support plate 20. When thefirst support plate 10 slides during opening of thedisplay module 40, thefirst locking portion 12 and thesecond locking portion 22 are engaged with each other such that thefirst support plate 10 and thesecond plate 20 maintain their parallel/level state. -
FIG. 5A schematically illustrates a cross-sectional view of the display device before the display module is opened according to the exemplary embodiment,FIG. 5B andFIG. 5C schematically illustrate cross-sectional views of the display device after the display module is partially opened according to the exemplary embodiment, andFIG. 5D illustrates a cross-sectional view of the display device after the display module is completely opened according to the exemplary embodiment. - Referring to
FIG. 5A toFIG. 5D , before thedisplay module 40 is opened, thesecond support plate 20 is located below thefirst support plate 10, and thefirst support 10 presses thesecond support plate 20, and thus pressure from thesecond support plate 20 is applied to an upper portion of the elastic member 60 (e.g., to compress theelastic member 60, refer toFIG. 5A ). When thedisplay module 40 is partially opened, thefirst support plate 10 slides along theopening 32 formed in the side surface of thebase portion 30, and thus the pressure applied to thesecond support plate 20 from thefirst support plate 10 is gradually weakened or reduced. Accordingly, theelastic member 60 pushes thesecond support plate 20 upward, and thesecond support plate 20 rotates upward with respect to thehinge shaft 24. As thefirst support plate 10 slides, thedisplay module 40 gradually moves along the outer surface of the base portion 30 (refer toFIG. 5B ). When thedisplay module 40 is more opened, thefirst locking portion 12 protruding downward from the end of thefirst support plate 10 and thesecond locking portion 22 protruding downward from the end of thesecond support plate 20 are engaged with each other. In this case, thesecond support plate 20 rotates no further upward due to the elastic member 60 (refer toFIG. 5C ). When thedisplay module 40 is completely opened, thefirst locking portion 12 and thesecond locking portion 22 are engaged with each other, and thus they are located at locations where they cannot be separated from each other, and a pressure is applied to a lower side of theelastic member 60 such that an upward supporting force of thefirst locking portion 12 and a compressive force applied to a lower side of theelastic member 60 are balanced such that thedisplay module 40 becomes substantially level. -
FIG. 6A schematically illustrates a cross-sectional view of the display device after the display module is completely opened according to the exemplary embodiment,FIG. 6B andFIG. 6C schematically illustrate the display device after the display module is partially closed according to the exemplary embodiment, andFIG. 6D schematically illustrates the display device after the display module is completely closed according to the exemplary embodiment. - Referring to
FIG. 6A toFIG. 6D , when thedisplay module 40 is completely opened, thefirst support plate 10 and thesecond support plate 20 are maintained in the parallel state/substantially level state, and thefirst locking portion 12 and thesecond locking portion 22 are engaged with each other such that an upward supporting force of thefirst locking portion 12 and a compressive force applied to a lower side of theelastic member 60 are balanced such that thedisplay module 40 becomes substantially level (FIG. 6A ). When thedisplay module 40 is partially closed, thesecond support plate 20 is slightly pressed down by thefirst support plate 10, and the compressive force of theelastic member 60 is weakened or canceled by the opposing force of the first support plate 10 (FIG. 6B ). When thedisplay module 40 is closed further, thefirst support plate 10 slides along theopening 32 formed in the side surface of thebase portion 30 such that thefirst support plate 10 presses thesecond support plate 20 with stronger force. Accordingly, theelastic member 60 pushes thesecond support plate 20 upward with stronger force (FIG. 6C ). When thedisplay module 40 is completely closed, thesecond support plate 20 is located below thefirst support plate 10, thefirst support plate 10 presses thesecond support plate 20 downward, and theelastic member 60 pushes thesecond support plate 20 upward. - Unlike the size of each of the first and
second support plates first support plate 10 and the size of thesecond support plate 20 may be changed according to the degree of sliding of thedisplay module 40. Further, a horizontal to vertical ratio of thedisplay module 40 in the completely closed state and a horizontal to vertical ratio of thedisplay module 40 in the completely opened state may be respectively set to 4:3 and 16:9, or respectively 1:1 and 16:9. - The
display module 40 may be a rollable module. In this case, thebase portion 30 may have a semi-circular, curved, or bent outer surface for rolling of thedisplay module 40. - The
display module 40 may be a flexible display device that includes a flexible display substrate, a display element layer formed on the flexible display substrate and including a plurality of pixels, a thin film encapsulation layer covering the display substrate and the display element layer for protection, or a touch panel formed on the thin film encapsulation layer. - The display element layer is formed on the display substrate, and includes an element area where an active element is located, such as a thin film transistor, and an emission area where an emission layer is formed. The element area and the emission area may be distanced from each other, or may overlap each other. The display element layer may include an organic emission display element.
- A window layer may be formed on the thin film encapsulation layer, and the window layer may be a plastic substrate made of polyimide (PI) or polyethylene terephthalate (PET).
- A functional layer may be provided between the thin film encapsulation layer and the window layer. The functional layer may be formed of a phase delay film. The phase delay film may be a A/4 phase delay film, and serves to change linear polarization to circular polarization, or to change circular polarization to linear polarization. The phase delay film may be a birefringence film that is made by performing stretching treatment on a film made of suitable polymers, such as polycarbonate or polyvinyl alcohol, polystyrene or polymethyl methacrylate, polypropylene or another polyolefin, and polyarylate or polyamide, an oriented film of a liquid crystal polymer, a film supporting an oriented layer of a liquid crystal polymer, and the like. Further, the phase delay film may be made of a Zeonor or Arton resin.
- In addition, the functional layer may be made of a polarizer. The polarizer may reduce the thickness and improve the image visibility, while securing the flexibility characteristic.
- As described, the display device according to the exemplary embodiment enables screen expansion of a variable screen and the screen shape can be maintained when the screen is expanded, and the screen can be prevented from being pushed or pressed by screen touch operation of a user.
- While this disclosure has been described in connection with what is presently considered to be practical exemplary embodiments, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the appended claims.
-
Description of Some of the Reference Characters 10: first support plate 20: second support plate 30: base portion 40: display module 50: base case 60: elastic member 12: first locking portion 14: separation prevention hook 22: second locking portion 24: hinge shaft 32: opening 34: hinge opening 62: elastic member fixing protrusion
Claims (1)
1. A display device comprising:
a base portion;
a first support plate slidably coupled to the base portion, and configured to support a single continuous and uniform display module;
a second support plate below the first support plate when the display device is closed, hinge-combined to the base portion to be vertically rotatable with movement of the first support plate, and configured to support the single continuous and uniform display module; and
an elastic member between the base portion and the second support plate, and configured to provide an elastic force to rotate the second support plate upward with movement of the first support plate.
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US16/133,567 US20190019846A1 (en) | 2015-04-24 | 2018-09-17 | Flexible display device |
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CN106652798B (en) * | 2017-01-16 | 2019-01-15 | 武汉华星光电技术有限公司 | A kind of display device and its bearing assembly |
CN109388270A (en) * | 2017-08-11 | 2019-02-26 | 深圳天珑无线科技有限公司 | A kind of terminal with flexible screen |
KR102389189B1 (en) | 2017-11-29 | 2022-04-22 | 삼성전자주식회사 | Electronic device with flexible display having expandable display area |
KR102446200B1 (en) * | 2017-12-22 | 2022-09-21 | 엘지디스플레이 주식회사 | Flexible display apparatus and rollable display apparatus comprising the same |
WO2020166856A1 (en) * | 2019-02-14 | 2020-08-20 | Lg Electronics Inc. | Mobile terminal |
CN111619465B (en) * | 2019-02-27 | 2021-09-03 | 瀚宇彩晶股份有限公司 | Electronic device and vehicle |
EP3785897B1 (en) | 2019-08-29 | 2021-12-29 | SHPP Global Technologies B.V. | Transparent, flexible, impact resistant, multilayer film comprising polycarbonate copolymers |
WO2021045263A1 (en) * | 2019-09-05 | 2021-03-11 | 엘지전자 주식회사 | Mobile terminal |
EP4075414A4 (en) * | 2019-12-13 | 2023-08-30 | LG Electronics Inc. | Flexible display device |
CN111312079A (en) * | 2020-03-10 | 2020-06-19 | 京东方科技集团股份有限公司 | Flexible device |
KR20220002775A (en) | 2020-06-30 | 2022-01-07 | 삼성디스플레이 주식회사 | Display device |
KR20220121270A (en) | 2021-02-24 | 2022-09-01 | 삼성디스플레이 주식회사 | Display device |
CN113362710B (en) * | 2021-06-04 | 2023-04-07 | 维沃移动通信有限公司 | Electronic device |
KR20230068600A (en) * | 2021-11-11 | 2023-05-18 | 삼성전자주식회사 | Rollable Electronic Device |
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JP2004118151A (en) | 2002-09-30 | 2004-04-15 | Brother Ind Ltd | Input device provided with scrolling display and foldable keyboard, and personal computer provided with the same |
AU2003302796A1 (en) | 2002-12-10 | 2004-06-30 | Koninklijke Philips Electronics N.V. | Display device and electronic appliance for use in combination therewith |
CN2696025Y (en) * | 2004-04-29 | 2005-04-27 | 鸿富锦精密工业(深圳)有限公司 | Note-book type computer |
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KR100818170B1 (en) | 2007-03-13 | 2008-04-02 | 한국과학기술원 | Rollable information display and portable terminal having it |
KR101539465B1 (en) * | 2009-02-18 | 2015-07-27 | 삼성전자주식회사 | Portable communication device and sliding-cradling apparatus thereof |
KR100917683B1 (en) | 2009-06-16 | 2009-09-17 | 주식회사 대일테크놀로지 | A portable screen |
CN101931664B (en) * | 2009-06-25 | 2013-11-06 | 纬创资通股份有限公司 | Electronic device with display screen |
KR20110038560A (en) * | 2009-10-08 | 2011-04-14 | 김시환 | A portable display device |
JP5551024B2 (en) * | 2010-08-31 | 2014-07-16 | 三菱製鋼株式会社 | Slide device for electronic equipment |
KR101780419B1 (en) * | 2011-02-15 | 2017-10-11 | 삼성디스플레이 주식회사 | Flexible display |
KR101320384B1 (en) * | 2011-06-30 | 2013-10-23 | 삼성디스플레이 주식회사 | Flexible display panel and the display apparatus comprising the flexible display panel |
JP5148767B1 (en) * | 2012-04-05 | 2013-02-20 | ナガシマ工芸株式会社 | Display device |
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KR102072686B1 (en) * | 2013-06-05 | 2020-02-03 | 엘지전자 주식회사 | Image display device |
WO2015154276A1 (en) * | 2014-04-10 | 2015-10-15 | Microsoft Technology Licensing, Llc | Slider cover for computing device |
CN104485055B (en) * | 2014-12-24 | 2017-02-22 | 华勤通讯技术有限公司 | Auxiliary spreading device for flexible screen |
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US10079270B2 (en) | 2018-09-18 |
CN106066721B (en) | 2021-01-01 |
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