KR20170006011A - Display apparatus - Google Patents

Abstract

Disclosed is a display device. The display device according to the present invention includes: a housing; a plurality of rollers that are located in the housing; a display unit including a display panel that is in any one state of a first state in which it is wound on at least one roller among the plurality of rollers and a second state in which it is unwound from the at least one roller to be exposed to the outside of the housing and a module cover that is wound on at least one other roller among the plurality of rollers or comes into contact with a rear surface of the display panel according to a state of the display panel; and a driving unit that is coupled to the display panel and the module cover such that the display panel and the module cover are elevated in conjunction with each other, wherein the driving unit includes two arms that are connected to an upper central portion of the display unit, and the arms push the display unit such that the display unit is converted from the first state into the second state. According to the present invention, loss of power required for lifting up the display unit may be smaller than that required for pressing upper ends of the arms by lifting up the module cover by pressing lower ends of the arms.

Description

Display device {DISPLAY APPARATUS}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a display device, and more particularly, to a display device in which a loss of force for lifting a display portion can be reduced, rather than pressing an upper end portion of an arm portion.

(PDP), an electro luminescent display (ELD), a vacuum fluorescent display (VFD), a liquid crystal display (PDP), and the like have been developed in recent years. Display) have been studied and used.

Among them, a display device using an organic light emitting diode (OLED) is superior in luminance and viewing angle characteristics to a liquid crystal display device, and does not require a backlight unit, so that it can be realized as an ultra-thin type.

The present invention is directed to solving the above-mentioned problems and other problems. Another object of the present invention is to provide a display device in which the loss of force in raising the display portion can be reduced, rather than pressing the upper end portion of the arm portion.

According to an aspect of the present invention, there is provided a method of driving a roller, including a housing, a plurality of rollers disposed in the housing, a first state in which the roller is wound on at least one of the plurality of rollers, And a second state in which the display panel is released from the housing and exposed to the outside of the housing, and a second state in which the display panel is wound on at least another roller of the plurality of rollers or contacts the rear surface of the display panel And a driving unit coupled to the display panel and the module cover such that the display panel and the module cover are interlocked with each other, wherein the driving unit includes two arm portions connected to the upper center portion of the display portion, , Wherein the arm portion And pushing the play section to change from the first state to the second state.

The lower end portion of the arm portion located on both sides of the module cover can be pushed to the central portion so that the upper end of the arm portion pushes the display portion.

The driving unit may further include a guide rail that is a section through which the lower end of the arm moves so as to raise and lower the display unit, and a moving roller coupled to the lower end of the arm unit and in contact with the guide rail.

The guide rail functions as a pinion gear, and the moving roller can function as a gear.

The guide rail may be in the form of a screw.

The length of the arm portion may be longer than the length of the short axis of the display portion.

The guide rails may be spaced apart from the module cover.

The module cover may include a plurality of aprons that are at least partially connected to one another.

The plurality of rollers may include a panel roller for winding the display panel and an apron roller for winding the module cover in cooperation with the winding of the display panel.

Effects of the display device according to the present invention will be described as follows.

According to at least one of the embodiments of the present invention, there is an advantage that the module cover is raised by pressing the lower end of the arm portion, so that there is less loss of force to lift the display portion than pressing the upper end portion of the arm portion.

Further scope of applicability of the present invention will become apparent from the following detailed description. It should be understood, however, that the detailed description and specific examples, such as the preferred embodiments of the invention, are given by way of illustration only, since various changes and modifications within the spirit and scope of the invention will become apparent to those skilled in the art.

1 to 6 are views showing a configuration of a display device related to the present invention.
7 to 12 are views showing a display device according to an embodiment of the present invention.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings, wherein like reference numerals are used to designate identical or similar elements, and redundant description thereof will be omitted. The suffix "module" and " part "for the components used in the following description are given or mixed in consideration of ease of specification, and do not have their own meaning or role. In the following description of the embodiments of the present invention, a detailed description of related arts will be omitted when it is determined that the gist of the embodiments disclosed herein may be blurred. It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory and are intended to provide further explanation of the invention as claimed. , ≪ / RTI > equivalents, and alternatives.

Hereinafter, an organic light emitting display (OLED) will be described as an example of the display panel. However, the display panel applicable to the present invention is not limited to the liquid crystal panel, , A liquid crystal display (LCD), a plasma display panel (P), and a field emission display (FED).

1 to 6 are views showing a configuration of a display device related to the present invention.

Referring to FIG. 1, a display apparatus 100 according to the present invention may include a display unit 20 and a housing 30.

The display unit 20 may include a display panel 10 and a module cover 15. The display panel 10 is provided on the front surface of the display device 100 and images can be displayed. The display panel 10 may divide an image into a plurality of pixels and output an image by controlling color, brightness, and saturation for each pixel to emit light. The display panel 10 may be divided into an active area in which an image is displayed and an inactive area in which no image is displayed.

The display panel 10 may have a rectangular shape. However, the present invention is not limited thereto, and the display panel 10 may have a shape having a predetermined curvature at an edge. The display panel 10 may be an organic light emitting diode (OLED) panel. However, the present invention is not limited thereto, and the display panel 10 may be a liquid crystal display panel.

The module cover 15 may be provided on the rear surface of the display panel 10. The module cover 15 can be attached directly to the display panel 10. [ The module cover 15 may be the same size as the display panel 10 or larger than the display panel 10.

The module cover 15 can support the rear surface of the display panel 10. Accordingly, the module cover 15 may comprise a lightweight and high strength material.

The housing 30 may be provided on the rear surface of the display unit 20. [ That is, it means that the housing 30 can be provided on the rear surface of the module cover 15. The housing 30 may shield at least one PCB. That is, it means that at least one PCB attached to the rear surface of the module cover 15 can be covered. The detailed bonding structure and bonding method of at least one PCB will be described later.

The housing 30 can transmit electromagnetic waves emitted from at least one PCB. Accordingly, although not shown, the housing 30 may include an inner housing made of a conductive material and an outer housing covering the inner housing. However, the present invention is not limited thereto, and the housing 30 may be formed of one conductive material.

Referring to FIG. 2, the display device 100 according to the present invention may include at least one PCB on at least a part of the rear surface of the module cover 15. Each PCB may be spaced apart.

Each PCB can function differently. For example, the at least one PCB may be the main board 109. The main board 109 may provide an interface for the display device 100 to operate. In addition, the main board 109 can check and manage the operating states of the components of the display apparatus 100 to make them optimal.

As another example, the at least one PCB may be a power supply 107. The power supply 107 can supply power to the display device 100. [ The power supply 107 can change the AC frequency to a DC frequency. That is, the power supply 107 changes the low frequency to the high frequency, which means that the electric efficiency can be increased.

And may be spaced apart from the main board 109 and the power supply 107 by a predetermined distance. For example, the main board 109 may be positioned opposite to the power supply 107 in the longitudinal direction of the display device 100 with respect to the center of the module cover 15.

As another example, the at least one PCB may be the timing controller board 105. The timing controller board 105 can transmit an input signal to the display panel 10. That is, the timing controller board 105 means that timing signals (CLK, LOAD, SPi) controlling the source PCB 120 and video signals (R, G, B) can be transmitted to the source PCB 120 do. In addition, the timing controller board 105 can control an image. The timing controller board 105 may be connected to the source PCB 120 through an FFC cable (Flat Flex Cable) 117.

The source PCB 120 may be located with signal wires for transmitting timing control signals and digital video data transmitted from the timing controller board 105. [ The source PCB 120 may be connected to the display panel 10 by a source COF (Chip on Film) 123.

The source COF 123 may be electrically connected to the source PCB 120 and the data pads of the display panel 10. [ The source COF 123 may be implemented with a data integrated circuit.

The main board 109 and the power supply 107 may be connected to the timing controller board 105 via the wiring electrodes 113. [ Also, though not shown, the main board 109 and the power supply 107 may be electrically connected to each other through the wiring electrodes 113. [

Referring to FIG. 3, the display device 100 according to the present invention may be configured such that the housing 30 is positioned below the display unit 20. In detail, the housing 30 may be configured to surround the lower portion of the display unit 20. The housing 30 can prevent various drive equipment and drive circuits located therein from being exposed to the outside.

The width of the housing 30 in the first and second directions may be larger than the width of the display portion 20 to protect the display portion 20 therein. The width of the housing 30 in the third direction may be smaller than the width of the display portion 20 because it interferes with the view of the user.

The display device 100 according to the present invention may not include the housing 30 in the active area of the display unit 20. [ Accordingly, users can be immersed in the screen of the thinner display unit 20.

4, the display device 100 according to the present invention may be a first state in which the active area of the display unit 20 is located inside the housing 30 and a second state in which the active area of the display unit 20 is exposed outside the housing 30 .

The active area of the display portion 20 may be located inside the housing 30 when the display device 100 is in the first state. That is, it means that the display unit 20 can be shielded by the housing 30.

The active area of the display unit 20 may be exposed outside the housing 30 when the display apparatus 100 is in the second state. That is, the display portion 20 means that at least part of the display portion 20 can protrude to the upper portion of the housing 30 in the second state.

Although not shown, the display portion 20 can be changed from the first state to the second state by the rollers located in the housing 30. [ Specifically, in the first state in which the display unit 20 is wound by the roller, the roller may be loosened and the display unit 20 may be changed to a second state in which the display unit 20 is exposed to the outside. On the contrary, the display unit 20 can change from the second state to the first state on the winding surface on which the rollers are loosened. The structure and operation method of the detailed roller and the display unit 20 will be described later.

In the display device 100 according to the present invention, the display unit 20 may be in any one of a first state and a second state. Accordingly, the user can expose the display unit 20 to the outside of the housing 30 only when viewing the display device 100, thereby saving space.

Referring to FIG. 5, a display device 100 according to the present invention may include a plurality of aprons 126, at least a part of which is connected to a module cover 15. The apron 126 may be at least partially interconnected. Accordingly, the apron 126 can be easily deformed when it is wound or unwound by the roller. The apron 126 may comprise a plastic or aluminum material. Thus, the display panel can be protected from an external impact.

The magnet 129 may be located on at least one apron 126. The magnet 129 can be attached using the double-sided tape with the apron 126. The magnet 129 may allow the apron 126 and the display panel 10 to be coupled to each other. The magnets 129 may be spaced apart from each other. Accordingly, the shape of the apron 126 can be easily deformed when the apron 126 is wound or unwound by the roller.

The display panel 10 may be attached to the magnet 129. The display panel 10 may include an Fe-Ni Invar alloy on its side in contact with the magnet 129. Accordingly, the display panel 10 can be strongly adhered to the magnet 129.

The display device 100 according to the present invention may include a module cover 15 including a plurality of aprons 126 and a magnet 129. Accordingly, the shape can be more easily deformed when it is wound by the roller than one module cover 15.

Referring to FIG. 6, a display device 100 according to the present invention may include a magnet 129 positioned inside a recess 117 of an apron 126.

The groove 117 may be located on a surface of the apron 126 facing the display panel 10. Since the magnet 129 is located inside the groove 117, the surface of the apron 126 that is in contact with the display panel 10 can be flat.

The display device 100 according to the present invention may have a flat surface, which is in contact with the display panel 10 of the module cover 15. Accordingly, the display panel 10 can be flat without causing a step difference.

7 to 12 are views showing a display device according to an embodiment of the present invention.

Referring to FIG. 7, the display device 100 according to the present invention may include two arm portions 364 coupled to a top case 167. In detail, the top case 167 can be coupled with the two arm portions 364 through the support portions 371. [ The arm portion 364 can be coupled to the center portion of the top case 167. One side of the arm 364 is coupled to the support 371 and the other side can be located inside the housing 30. [ That is, the other side of the arm portion 364 can be shielded by the housing 30.

The support portion 371 may be located at the center of the top case 167. The support portion 371 may have an opening in the moving radius of the arm portion 364 so that the arm portion 364 can move freely. A detailed driving method of the arm portion 364 will be described later.

The arm portion 364 can lift the module cover 15 by pushing the top case 167. In detail, the arm portion 364 can lift the module cover 15 by pushing the support portion 371 located at the center of the top case 167.

In the display device 100 according to the present invention, two arm portions 364 for lifting up and down the module cover 15 may be located at the center of the top case 167. Accordingly, when the module cover 15 is raised and lowered, the force can be reduced.

8, the display device 100 according to the present invention is configured such that when the module cover 15 is in the first state inside the housing 30, the arm portion 364 is laid in the longitudinal direction of the module cover 15 . Accordingly, the arm 364 and the support 371 are located inside the housing 30 and may not be exposed to the outside.

The lower end portion of the arm portion 364 can be pressed to the center portion of the module cover 15 when the module cover 15 is changed to the second state in which the module cover 15 is exposed to the outside of the housing 30 in the first state. As the lower end of the arm portion 364 is pressed, the module cover 15 can be raised.

Since the upper end of the arm 364 is fixed by the support 371, the module cover 15 can be raised as the lower end of the arm 364 is pressed toward the center of the module cover 15.

The display device 100 according to the present invention can press the lower end of the arm portion 364 to raise the module cover 15. [ Thereby, the loss of force may be less than that of pressing the upper end of the arm portion 364. [

9, the length TAD of the arm portion 364 may be longer than the length DPH of the short axis of the module cover 15 in the display device 100 according to the present invention. That is, in the second state, the arm 364 may not stand in a vertical position. In the second state, the arm 364 and the housing 30 may be in the shape of a triangle. Accordingly, even in the second state of the arm portion 364, the module cover 15 can be supported so as not to descend.

The length TAD of the arm portion 364 may be longer than half the length LPH of the long axis of the module cover 15. [ That is, the lower end of the arm portion 364 in the first state is beyond the short axis of the module cover 15. Accordingly, the length of the long axis of the housing 30 may be longer than the length LPH of the long axis of the module cover 15.

The length TAD of the arm portion 364 may be longer than the length DPH of the short axis of the module cover 15 in the display device 100 according to the present invention. Accordingly, even in the second state, the arm portion 364 can be supported by the module cover 15 without being damaged.

Referring to FIG. 10, a display device according to the present invention may include a panel roller 143 and an apron roller 141 inside a housing 30.

The panel roller 143 may be located at an upper portion inside the housing 30. The panel roller 143 is capable of winding and unwinding the display panel 10. The winding force of the panel roller 143 may be greater than the adhesion force between the display panel 10 and the module cover 15. [

The apron roller 141 may be positioned on the opposite side of the panel roller 143. [ The apron roller 141 can wind the module cover 15. Since the module cover 15 is thick, the diameter of the apron roller 141 can be very large when changing from the second state to the first state.

In the display apparatus according to the present invention, the panel roller 143 and the apron roller 141 may be located on the opposite sides. Accordingly, the display panel 10 and the module cover 15 can be wound without interfering with each other.

The guide rail 415 can be positioned on the apron roller 141. The guide rail 415 may be located on the rear surface of the module cover 15. [ The guide rail 415 may be spaced apart from the module cover 15 so that it is not disturbed when the apron roller 141 is wound.

The guide rail 415 may be a section in which the lower end of the arm portion for moving up and down the module cover 15 moves. The detailed shape of the guide rail 415 will be described later.

In the display device according to the present invention, the guide rails 415 may be positioned to raise and lower the module cover 15. Accordingly, the module cover 15 can be raised and lowered with a smaller force.

11, the display device 100 according to the present invention includes a guide rail 415 having one side thereof protruded at a predetermined interval, and a protrusion of a moving roller 417 located at a lower end of the arm portion 364, It can be bitten. That is, the guide rail 415 functions as a gear and the moving roller 417 functions as a pinion gear.

The movable roller 417 is engaged with the guide rail 415 and can be rotated and moved to the center of the module cover 15 when the first state is changed to the second state. As the moving roller 417 moves to the center of the module cover 15, the arm portion 364 can push the top case 167 upward. The lower end of the arm portion 364 is not fixed to the moving roller 417 but can be rotated separately. Accordingly, when the moving roller 417 rotates to the center of the module cover 15, the lower end of the arm portion 364 moves to the center of the module cover 15 and pushes the top case 167 upward.

The display device 100 according to the present invention may have a gear shape in which the guide rail 415 and the moving roller 417 are engaged with each other. Accordingly, the arm portion 364 can push the top case 167 with a stronger force.

Referring to FIG. 12, the display device 100 according to the present invention may have a shape of a screw of the guide rail 415. The guide rail 415 can be rotated while the motor 423 connected to one side of the guide rail 415 rotates. The motor 423 and the guide rail 415 can rotate in the same direction.

The spiral direction of the screw can be reversed about the module cover 15. Thus, both of the moving rollers 417 engaged with the guide rails 415 on both sides can move in the direction of the center of the module cover 15.

The moving roller 417 can move along the guide rail 415 as the guide rail 415 rotates. In detail, when the motor 415 rotates in the first direction, the guide rail 415 can rotate in the first direction. Accordingly, the moving rollers 417 on both sides can move to the center of the module cover 15. [ When the motor 415 rotates in the second direction, the guide rail 415 can rotate in the second direction. Accordingly, the moving rollers 417 on both sides can move to the side surface of the module cover 15.

The lower end of the arm portion 364 can be connected to the moving roller 417. The arm portion 364 can push the top case 167 upward when the moving roller 417 moves to the center portion of the module cover 15. [

In the display device 100 according to the present invention, the guide rail 415 may have a screw shape. As a result, the driving method of the arm portion 364 is simplified and can be precisely operated.

The foregoing detailed description should not be construed in all aspects as limiting and should be considered illustrative. The scope of the present invention should be determined by rational interpretation of the appended claims, and all changes within the scope of equivalents of the present invention are included in the scope of the present invention.

Claims (9)

housing;
A plurality of rollers positioned within the housing;
A display panel in a first state in which at least one of the plurality of rollers is wound on a roller and a second state in which the first state is released from the at least one roller and is exposed to the outside of the housing; A display unit including a module cover wound on at least one of the rollers of the plurality of rollers or contacting a rear surface of the display panel, And
And a driving unit coupled to the display panel and the module cover such that the display panel and the module cover interlock with each other,
Wherein the driving unit includes two arm portions connected to an upper center portion of the display portion,
And the arm portion pushes the display portion to change from the first state to the second state.
The method according to claim 1,
The lower ends of the arm portions located on both sides of the module cover are pressed to the center of the module cover,
And an upper end of the arm portion pushes the display unit.
The method according to claim 1,
The driving unit includes:
A guide rail which is a section in which the lower end of the arm portion moves so that the display unit is raised and lowered,
And a moving roller coupled to the lower end of the arm portion and contacting the guide rail.
The method of claim 3,
The guide rail functions as a pinion gear,
And the moving roller functions as a return gear.
The method of claim 3,
Wherein the guide rail is in the form of a screw.
The method according to claim 1,
Wherein a length of the arm portion is longer than a length of a minor axis of the display portion.
The method according to claim 1,
Wherein the guide rails are spaced apart from the module cover.
The method according to claim 1,
The module cover includes:
A display device comprising a plurality of aprons, at least some of which are connected to one another.
The method according to claim 1,
Wherein the plurality of rollers
A panel roller for winding the display panel,
And an apron roller for winding up the module cover in cooperation with the winding of the display panel.

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