Display device

Abstract

A display device is disclosed. The display device according to this disclosure may include: a display panel that displays an image and is transparent; a main roller that extends along one side of the display panel; a light-shielding film, one end of which is fixed to the main roller and is wound around or unfolded from the main roller; a rod that extends along the longitudinal direction of the main roller, the other end of which is fixed to the rod, and which causes the light-shielding film to move to cover or open the rear of the display panel; a first auxiliary roller that extends along the longitudinal direction of the main roller, and a portion of the light-shielding film located between the main roller and the rod is held on the first auxiliary roller; and a second auxiliary roller that extends along the longitudinal direction of the main roller, and a portion of the light-shielding film located between the main roller and the first auxiliary roller is held on the second auxiliary roller.

Description

Technical Field

[0001] This disclosure relates to a display device. Background Technology

[0002] With the development of the information society, the demand for various forms of display devices is increasing. In response, various display devices have been researched and used recently, such as liquid crystal displays (LCDs), plasma display panels (PDPs), electroluminescent displays (ELDs), vacuum fluorescent displays (VFDs), and organic light-emitting diodes (OLEDs).

[0003] In these, an LCD panel includes a TFT substrate and a color substrate facing each other, with a liquid crystal layer inserted between them. The LCD panel can display images using light supplied from a backlight unit. Conversely, an OLED panel can display images by depositing a self-emissive organic layer on a substrate with transparent electrodes.

[0004] Recently, much research has been conducted on transparent display panels that not only display images to users but also allow users to see behind the display panel. Summary of the Invention

[0005] Technical issues

[0006] One purpose of this disclosure is to address the aforementioned problems and others.

[0007] Another object of this disclosure is to provide a display device having a transparent display panel.

[0008] Another object of this disclosure is to provide a structure and drive mechanism for opening and closing the rear surface of a transparent display panel.

[0009] Another object of this disclosure is to provide a frame structure in which a transparent display panel and a light shield are connected.

[0010] Another object of this disclosure is to provide a driving mechanism for a sheet used to shield light from a transparent display panel.

[0011] Another object of this disclosure is to provide a structure that minimizes the gap between the transparent display panel and the light shield, thereby minimizing the thickness of the product and improving image quality.

[0012] Another object of this disclosure is to provide a structure that minimizes the phenomenon of the light-shielding sheet bulging toward the transparent display panel.

[0013] Another object of this disclosure is to provide a structure that minimizes contact between the rear surface of the transparent display panel and the light shield.

[0014] Technical solution

[0015] According to one aspect of this disclosure for achieving the above or other purposes, a display device may include: a display panel displaying an image and having light transmittance; a main roller extending along one side of the display panel; a light-shielding sheet having one end fixed to the main roller and being wound around or unfolded from the main roller; a rod extending in the longitudinal direction of the main roller, the other end of the light-shielding sheet being fixed to the rod, and the rod causing the light-shielding sheet to move to cover or open a rear side of the display panel; a first auxiliary roller extending in the longitudinal direction of the main roller, and a portion of the light-shielding sheet located between the main roller and the rod being engaged on the first auxiliary roller; and a second auxiliary roller extending in the longitudinal direction of the main roller, and a portion of the light-shielding sheet located between the main roller and the first auxiliary roller being engaged on the second auxiliary roller.

[0016] Invention Effects

[0017] The effects of the display device according to this disclosure are described below.

[0018] According to at least one embodiment of the present disclosure, a display device having a transparent display panel can be provided.

[0019] According to at least one embodiment of the present disclosure, a structure and drive mechanism for opening and closing the rear surface of a transparent display panel can be provided.

[0020] According to at least one embodiment of this disclosure, a frame structure in which a transparent display panel and a light-shielding sheet are connected can be provided.

[0021] According to at least one embodiment of the present disclosure, a driving mechanism for a sheet used to shield light from a transparent display panel can be provided.

[0022] According to at least one embodiment of the present disclosure, a structure can be provided that minimizes the gap between the transparent display panel and the light shield to minimize the thickness of the product and improve image quality.

[0023] According to at least one embodiment of the present disclosure, a structure can be provided that minimizes the phenomenon of the light-shielding sheet bulging toward the transparent display panel.

[0024] According to at least one embodiment of the present disclosure, a structure can be provided that minimizes contact between the rear surface of the transparent display panel and the light-shielding sheet.

[0025] The further scope of the applicability of this disclosure will become apparent from the following detailed description. However, since various changes and modifications within the concept and scope of this disclosure are readily apparent to those skilled in the art, specific embodiments such as the detailed description and preferred embodiments of this disclosure should be understood as being given by way of example only. Attached Figure Description

[0026] Figures 1 to 25 This is a diagram illustrating an example of a display device according to an embodiment of the present disclosure. Detailed Implementation

[0027] In the following description, the same or similar parts are given the same reference numerals, and overlapping descriptions of the same reference numerals may be omitted.

[0028] In the following description, suffixes such as "module" and "part" may be used to refer to components or parts. Such suffixes are used solely for ease of description and have no particular meaning or function.

[0029] In the following description, detailed descriptions of prior art may be omitted when it is determined that such detailed descriptions would obscure the gist of embodiments of this disclosure. In the following description, accompanying drawings are used to aid in the easy understanding of various technical features, and it should be understood that the embodiments presented herein are not limited to the drawings. Similarly, this disclosure should be construed as extending to any modifications, equivalents, and substitutions other than those specifically set forth in the accompanying drawings.

[0030] Terms such as "first" and "second" as used in the following description may be used. These terms are used only to distinguish elements from other elements, and the nature, order, or sequence of elements are not limited by these terms.

[0031] It should be understood that when a component is described as being "connected" to another component, there may be intermediate components. Conversely, it should be understood that when a component is described as being "directly connected" to another component, there are no intermediate components.

[0032] Singular representations may include plural representations unless the context clearly indicates otherwise.

[0033] In this application, it should be understood that the terms "comprising," "including," "having," etc., specify the presence of features, numbers, steps, operations, elements, components, or combinations thereof described in the specification, but do not exclude the presence or addition of one or more other features, numbers, steps, operations, elements, components, or combinations thereof.

[0034] The directional indications shown in the accompanying drawings—up (U), down (D), left (Le), right (Ri), front (F), and rear (R)—are for illustrative purposes only, and the technical concepts disclosed in this specification are not intended to limit the scope of the invention.

[0035] refer to Figure 1 The display device 1 may include a display 10, a side frame 20, and a housing 90. The display 10 may display an image. The side frame 20 may extend circumferentially along the display 10. The housing 90 may be located below the display 10 and the side frame 20. Alternatively, the housing 90 may be located above, to the left, or below the display 10 and the side frame 20.

[0036] The display 10 may include a first long side LS1, a second long side LS2 opposite to the first long side LS1, a first short side SS1 adjacent to the first long side LS1 and the second long side LS2, and a second short side SS2 opposite to the first short side SS1.

[0037] Meanwhile, for ease of explanation, it is shown and described that the lengths of the first long side LS1 and the second long side LS2 are longer than the lengths of the first short side SS1 and the second short side SS2, but it is also possible that the lengths of the first long side LS1 and the second long side LS2 are approximately equal to or longer than the lengths of the first short side SS1 and the second short side SS2.

[0038] The directions parallel to the long sides LS1 and LS2 of the display 10 can be called the left-right directions. The directions parallel to the short sides SS1 and SS2 of the display 10 can be called the up-down directions. The directions perpendicular to the long sides LS1 and LS2 and the short sides SS1 and SS2 of the display 10 can be called the front-back directions.

[0039] The direction in which the image is displayed on the monitor 10 can be referred to as the forward direction (F, z), and the opposite direction can be referred to as the backward direction R. One side of the first short side SS1 can be referred to as the left side (Le, x). One side of the second short side SS2 can be referred to as the right side R1. One side of the first long side LS1 can be referred to as the top side (U, y). One side of the second long side LS2 can be referred to as the bottom side D.

[0040] In the following description, a display panel using organic light-emitting diodes (OLEDs) will be used as an example, but the display panels applicable to this disclosure are not limited thereto.

[0041] refer to Figure 2 A pixel can include a light-emitting area and a transparent area. In the light-emitting area, red, green, blue, and white (RGBW) subpixels can be arranged vertically, and transparent areas without subpixels can be arranged adjacent to the light-emitting area.

[0042] Therefore, the display panel 11 has multiple pixels (see Figure 7It not only displays images but also allows light to pass through. Display panel 11 (see...) Figure 7 It can be called a transparent display panel or a transparent OLED panel.

[0043] refer to Figure 3 A pixel can include an emitting region and a transparent region. In the emitting region, red, green, and white (RGW) or blue, green, and white (BGW) subpixels can be arranged adjacent to each other, and a transparent region without subpixels can be arranged adjacent to the emitting region.

[0044] Therefore, the display panel 11 has multiple pixels (see Figure 7 It not only displays images but also allows light to pass through. Display panel 11 (see...) Figure 7 It can be called a transparent display panel or a transparent OLED panel.

[0045] refer to Figure 4 and Figure 5 The display 10 can be connected to the side frame 20. The housing frame 71 can be connected to or fixed to the side frame 20. The housing frame 71 can cover the rear surface of the display 10. The housing frame 71 can be located at the rear of the display 10. The housing frame 71 can be referred to as the rear frame, rear panel, or rear base. The length of the housing frame 71 can correspond to the length of the long side of the display 10. The width of the housing frame 71 can be shorter than the length of the short side of the display 10.

[0046] Multiple motors 61 may be present. Each of the multiple motors 61 may be arranged at the rear of the display 10, adjacent to both the left and right sides of the display 10. A pair of motors 61 may provide dual driving force. A gearbox 62 may correspond to the motors 61. Each of the multiple gearboxes 62 may be connected to each of the multiple motors 61. A pair of gearboxes 62 may transmit the dual driving force provided by the pair of motors 61. The motors 61 and / or gearboxes 62 may be coupled to or fixed to the rear surface of the housing frame 71. The motors 61 and / or gearboxes 62 may not be exposed to the front of the display device 1 through the housing frame 71. The lever 40 may slide and move up and down on the side frame 20.

[0047] Together Figure 5 Let's refer to each other. Figure 6 The display 10 can be connected to the side frame 20. The lower frame 18 can be connected to or fixed to the side frame 20 and can support the display 10 from below. The side frame 20 may include a first part 21, a second part 22, and a third part 23.

[0048] The first part 21 can be connected to the upper side of the display 10, the second part 22 can be connected to the right side of the display 10, and the third part 23 can be connected to the left side of the display 10. The lower frame 18 can be connected to or fixed to the second part 22 and / or the third part 23 of the side frame 20.

[0049] Each vertical fastener 162 can be connected to each of the second part 22 and the third part 23, and the horizontal fastener 161 can be connected to the first part 21. The corner fastener and pulley 17 can be connected to the horizontal fastener 161 and / or the vertical fastener 162 at the upper corner.

[0050] Together Figure 6 Let's refer to each other. Figure 7 The display panel 11 can output an image by dividing the image into multiple pixels and matching the color, brightness, and saturation of each pixel. The display panel 11 can be divided into an effective area AA for displaying the image and an invalid area DA for not displaying the image. The display panel 11 can generate light corresponding to red, green, or blue according to a control signal.

[0051] The source PCB 14 may be adjacent to the lower side of the display panel 11. The source PCB 14 may extend along the lower side of the display panel 11. The source PCB 14 may be electrically connected to the display panel 11 via a chip-on-film (COF) 15. The source PCB 14 may be electrically connected to the timing controller board (T-CON board) via a cable (not shown) (e.g., a flexible flat cable (FFC)).

[0052] A transparent panel 13 may be located in front of the display panel 11. The transparent panel 13 may be glass made of a transparent material. An adhesive sheet 12 may be located between the display panel 11 and the transparent panel 13, and may be attached to both the display panel 11 and the transparent panel 13. The adhesive sheet 12 may be an optically clear adhesive (OCA) sheet. The transparent panel 13 may be referred to as the front panel.

[0053] The adhesive sheet 12 may cover at least a portion of the rear surface of the transparent panel 13. For example, one side of the adhesive sheet 12 may be closer to the center of the display panel 11 than a corresponding side of the transparent panel 13. The size or area of ​​the adhesive sheet 12 may be smaller than the size or area of ​​the transparent panel 13. For example, the upper, left, and right sides of the adhesive sheet 12 may be adjacent to the upper, left, and right sides of the transparent panel 13, respectively, and the lower side of the adhesive sheet 12 may be spaced upward from the lower side of the transparent panel 13.

[0054] The dimensions of the adhesive sheet 12 can correspond to the dimensions of the display panel 11. For example, the diagonal length of the adhesive sheet 12 can be substantially the same as the diagonal length of the display panel 11. As another example, the diagonal length of the adhesive sheet 12 can be greater than the diagonal length of the display panel 11. A portion of the adhesive sheet 12 can be arranged along the periphery of the display panel 11 on the outer side of the display panel 11. For example, the adhesive sheet 12 can form a rectangular line along the circumference of the display panel 11.

[0055] Display panel 11, adhesive sheet 12 and transparent panel 13 may be referred to as display 10.

[0056] Refer to together Figure 8 and Figure 7 The lower frame 18 may include a horizontal portion 18c, a first vertical portion 18a, a second vertical portion 18b, and a connecting portion 18d. The horizontal portion 18c may be a long extension plate, and the first vertical portion 18a may extend upward from the front edge of the horizontal portion 18c to form a right angle with the horizontal portion 18c. The second vertical portion 18b may extend downward from the front edge of the horizontal portion 18c to form a right angle with the horizontal portion 18c. The connecting portion 18d may protrude from the rear surface of the first vertical portion 18a. The connecting portion 18d may be formed on the upper surface of the horizontal portion 18c and / or the rear surface of the first vertical portion 18a. Multiple connecting portions 18d may be arranged at regular intervals.

[0057] The transparent panel 13 may have a connecting groove 13d, which has a portion that can be removed from the bottom. The connecting groove 13d of the transparent panel 13 may correspond to the connecting portion 18d of the lower frame 18. The connecting portion 18d of the lower frame 18 may be inserted into the connecting groove 13d of the transparent panel 13. The first vertical portion 18a may cover the front surface of the transparent panel 13 adjacent to the bottom side of the transparent panel 13. The horizontal portion 18c of the lower frame 18 may support the transparent panel 13.

[0058] The source PCB 14 can be located on the horizontal portion 18c of the lower frame 18. The source PCB 14 can face the horizontal portion 18c of the lower frame 18 or be in contact with the horizontal portion 18c of the lower frame 18.

[0059] Refer to together Figure 9 and Figure 8The PCB cover 19 may include a horizontal portion 19a, a folded portion 19c, a vertical portion 19b, and a fixing portion 19d. The horizontal portion 19a may be an elongated plate and may cover the source PCB 14. The vertical portion 19b may be formed by extending upward from the edge of the horizontal portion 19a or by bending. The folded portion 19c may be opposite to the vertical portion 19b relative to the horizontal portion 19a. The folded portion 19c may extend by bending from the horizontal portion 19a toward the lower surface of the horizontal portion 19a. The folded portion 19c may face the horizontal portion 19a. The fixing portion 19d may be formed on the vertical portion 19b. The fixing portion 19d may be formed to protrude forward from the vertical portion 19b when the vertical portion 19b is pressed. The fixing portion 19d may be fixed to the connecting portion 18d of the lower frame 18.

[0060] When the folded portion 19c of the PCB cover 19 is connected to the horizontal portion 18c of the lower frame 18, and the fixing portion 19d of the PCB cover 19 is fixed to the connecting portion 18d of the lower frame 18, the PCB cover 19 can cover the source PCB 14.

[0061] Reference Figure 10 and Figure 11 The display panel 11 can be disposed on the rear surface of the transparent panel 13. The display panel 11 can be attached or fixed to the adhesive sheet 12.

[0062] The frame fastener 16 may include a horizontal fastener 161, a vertical fastener 162, and a corner fastener 163. The horizontal fastener 161 may be integrally formed with the vertical fastener 162. The horizontal fastener 161 and the vertical fastener 162 may be referred to as the inner frame. The horizontal fastener 161 may include a plate 161a and a wall 161b. The plate 161a may extend horizontally and can be fixed to a first portion 21 of the side frame 20. The wall 161b may be formed on the plate 161a. The wall 161b may project rearward from the outer surface of the plate 161a.

[0063] The vertical fastener 162 may include a plate 162a and a wall 162b. The plate 162a may extend vertically and be fixed to the third portion 23 of the side frame 20. The wall 162b may be formed on the plate 162a. The wall 162b may protrude from the outer surface of the plate 162a in a left-right direction.

[0064] The corner fastener 163 can be a curved plate segment. The corner fastener 163 can be a plate 163a curved along the corner of the vertical fastener 162 and the horizontal fastener 161. A pulley shaft 163b can protrude and extend from the outer surface of the plate 163a of the corner fastener 163 toward the rear of the transparent panel 13. The corner fastener 163 can be coupled to or fixed to the horizontal fastener 161 and / or the vertical fastener 162. The corner fastener 163 can be referred to as the left corner fastener or the first corner fastener. If the corner fastener 163 is located at the corner formed by the first portion 21 and the second portion 22 of the side frame 20 (see...), Figure 5 If so, the corner fixer 163 can be called the right corner fixer or the second corner fixer.

[0065] Pulley 17 can be inserted into pulley shaft 163b. Pulley 17 can rotate on pulley shaft 163b. Pulley 17 can be referred to as upper pulley 17. For example, a lubricant for noise reduction can be applied between pulley shaft 163b and pulley 17. As another example, pulley 17 can be formed of a synthetic resin with low frictional resistance, and pulley shaft 163b can be made of metal to prevent noise and smooth the rotation of pulley 17. Belt 32 can be wound around pulley 17.

[0066] Pulley 17 may include a wheel 17a and a gear 17b. Wheel 17a may be formed in an annular or rim shape. Pulley shaft 163b may be inserted into wheel 17a, and wheel 17a may rotate on pulley shaft 163b. Gear 17b may form the outer surface of wheel 17a. A retaining washer 17c may be attached to pulley shaft 163b and adjacent to the distal end of pulley shaft 163b. For example, retaining washer 17c may be an E-ring. Retaining washer 17c prevents pulley 17 from separating from pulley shaft 163b. First pulley 17 or left pulley 17 may be located on first corner retainer 163 or left corner retainer 163, second pulley 17 (see...) Figure 5 ) or right pulley 17 (see Figure 5 It can be located on the second corner fixer 163 or the right corner fixer 163.

[0067] Reference Figure 12 and Figure 13 The mounting bracket 24 can be connected to or fixed to the plate 162a of the vertical fixture 162 and is supported by the wall 162b of the vertical fixture 162.

[0068] Mounting bracket 24 may include a main roller hole 24d1 and a secondary roller hole 24d2. The secondary roller hole 24d2 may face or overlap with the plate 162a of the vertical fixture 162. The main roller hole 24d1 may be adjacent to the secondary roller hole 24d2. Bearing B may be installed in the main roller hole 24d1 and / or the secondary roller hole 24d2.

[0069] The mounting bracket 60 can be connected to the vertical retainer 162 or the housing frame 71. The mounting bracket 60 can also be integrally formed with the housing frame 71. The motor 61 and / or gearbox 62 can be connected to the mounting bracket 60. The motor 61 can provide rotational force, and the gearbox 62 can be connected to the motor 61 to transmit driving force. The rotation counter 63 can be fixed to the motor shaft 61a and rotate with the motor shaft 61a.

[0070] Connector 62a can be connected to gearbox 62 and rotates by receiving driving force from gearbox 62. The axial direction of connector 62a can be parallel to the thickness direction of display 10. Drive pulley 31 can be fixed to connector 62a and can rotate with connector 62a. Belt 32 can be wound around drive pulley 31. Belt 32 can be referred to as drive belt or timing belt. Drive pulley 31 can be referred to as pulley, main pulley or suspension pulley.

[0071] See Figure 14 and Figure 15 The main roller 72 can be connected to or inserted into the main roller hole 24d1 of the mounting bracket 24 (see...). Figure 13 The auxiliary roller 73 can be connected to or inserted into the auxiliary roller hole 24d2 of the mounting bracket 24 (see...). Figure 13 The light-shielding sheet 45 can be rotated. One end of the light-shielding sheet 45 can be fixed to the main roller 72. The light-shielding sheet 45 can be wound around the main roller 72 and supported by the auxiliary roller 73. When the light-shielding sheet 45 is unwound from the main roller 72, the light-shielding sheet 45 can be guided by the auxiliary roller 73 and moved to the front side of the housing frame 71. The light-shielding sheet 45 unwound from the main roller 72 can cover the front side of the housing frame 71.

[0072] The pulley mount 79 can be connected to the rear surface of the housing frame 71. The pulley mount 79 can be a bracket or a plate. The pulley mount 79 can be integrally formed with the housing frame 71. The drive pulley 31 can rotate on the pulley mount 79. The shaft 31a of the drive pulley 31 can be inserted into the pulley mount 79 and aligned through the pulley mount 79. For example, the drive pulley 31 can rotate on the pulley mount 79, but cannot move up and down or left and right.

[0073] The auxiliary pulley 50 can be a tensioner. The auxiliary pulley 50 can be located above the pulley mount 79 and can push the belt 32. The belt 32 can maintain a constant tension through the auxiliary pulley 50. Multiple auxiliary pulleys 50, 51, and 52 may be present.

[0074] and Figure 15 Refer to together Figure 16 and Figure 17 The driving force provided by the motor 61 can be transmitted to the drive pulley 31 through the gearbox 62. The drive pulley 31 can rotate on the pulley mounting member 79. When the drive pulley 31 rotates, the belt 32 moves up and down, and the belt 32 can maintain a constant tension through the auxiliary pulley 50.

[0075] The lower frame 18 to which the PCB cover 19 is attached can be located on the underside of the housing frame 71. The main roller 72 and the auxiliary roller 73 can be located on the lower frame 18 and can be located at the rear of the housing frame 71. The light-shielding sheet 45 can be wound around or unwound from the main roller 72 and guided by the auxiliary roller 73 to cover the front surface of the housing frame 71.

[0076] The distal end of the light-shielding plate 45 can be fixed to the rod 40. When the strap 32 fixed to one end of the rod 40 moves, the rod 40 can move up and down. When the rod 40 moves, the light-shielding plate 45 can cover the rear surface of the display 10. The rod 40 can be located behind the rear surface of the display 10 and can move in the vertical direction of the display 10.

[0077] Reference Figure 18 and Figure 19 The rod 40 can extend horizontally for a considerable length, and a portion of the light-shielding plate 45 can cover the outer surface of the rod 40. A connecting member 41 can cover the light-shielding plate 45, which in turn covers the rod 40. The connecting member 41 can have a plate shape that is bent into an L-shape. The rear portion 41a of the connecting member 41 can cover the rear portion of the light-shielding plate 45 (covering the rear surface of the rod 40) and can extend for a considerable length along the rod 40 in the left-right direction. The lower portion 41b can bend forward from the lower end of the rear portion 41a and can be adjacent to the lower side of the rod 40.

[0078] Fastening member F4, such as a screw, can be fastened to rod 40 by penetrating connecting member 41. Therefore, rod 40, light shield 45 and connecting member 41 can be connected to each other.

[0079] The connector 42 may be located adjacent to both ends of the rod 40. The connector 42 may include a base 421 and a cap 422. The base 421 may be referred to as a first body, and the cap 422 may be referred to as a second body.

[0080] The base 421 may include a flat portion 421a, a wall 421b, and a pin. The flat portion 421a may be located on one end of the rod 40. The flat portion 421a may have a shape corresponding to one end of the rod 40. The wall 421b may project circumferentially from the flat portion 421a in a direction opposite to that of the rod 40. The walls 421b may be spaced apart from each other circumferentially along the flat portion 421a. The pin may project from the flat portion 421a toward the rod 40 and may be inserted into a hole formed at one end of the rod 40.

[0081] A portion of the band 32 may be opposite to the rod 40 relative to the flat portion 421a, and may be located on the flat portion 421a.

[0082] The cap 422 can be opposite to the flat portion 421a relative to the belt 32 and can be located inside the wall 421b. A gear 422g can be formed on a surface of the cap 422 facing the belt 32 on the flat portion 421a and can mesh with the gear 32g of the belt 32. A fastening member, such as a screw, can be fastened to the hole in the rod 40 by passing through the hole 422h in the cap 422, the belt 32, and the flat portion 421a.

[0083] Therefore, rod 40 can be secured to belt 32 via connector 42. Left connector 42 secures a portion of belt 32 to the far left end of rod 40, this portion of belt 32 being connected via left motor 61 (see...). Figure 5 and Figure 13 The belt 32 is rotated by the driving force of the right motor 61. The right connector 42 secures a portion of the belt 32 to the far right end of the rod 40; this portion of the belt 32 is driven by the right motor 61 (see...). Figure 5 and Figure 4 It rotates due to the driving force of ).

[0084] In response to the rotation of belt 32, the light-shielding sheet 45 and rod 40 fixed to belt 32 can move up and down. As the light-shielding sheet 45 unfolds from the main roller 72, it can move upward to gradually cover the rear side of the display panel 11. The light-shielding sheet 45 is wound around the main roller 72 and moves downward, so that the rear side of the display panel 11 can be gradually opened.

[0085] The side frame 20 may cover a portion of the front surface of the display 10. The front surface of the side frame 20 may define the bezel area BM (see...). Figure 1 ). Figure 19 The rod 40 can be located at the lower stop. The rod 40 can overlap with the upper end of the housing frame 71 in the vertical direction (i.e., the direction of movement of the rod 40), and the downward movement of the rod 40 can be restricted when the lower end of the rod 40 contacts the upper end of the housing frame 71. The area of ​​the display 10 between the side frame 20 and the rod 40 located at the lower stop can be referred to as the fixed area FM (see [reference]). Figure 1The rear side of the fixed area FM can always be covered by the light shield 45. The upper side of the side frame 20 (i.e., the side of the side frame 20 facing the center of the display 10) can be aligned with the central axis 73C of the auxiliary roller 73, and the position of the central axis 73C of the auxiliary roller 73 can correspond to the starting point of the fixed area FM. The area of ​​the display 10 other than the fixed area FM can be referred to as the fluid area AM (see...). Figure 1 Rod 40 can open the rear side of fluid region AM, or cover at least a portion of the rear side of fluid region AM.

[0086] Simultaneously, the base plate 70B can be connected to the housing frame 71 and is adjacent to the upper end of the housing frame 71. The base plate 70B can be a horizontal plate intersecting the housing frame 71. The top plate 70T can be opposite to the base plate 70B and can be connected to the upper end of the display 10. The top plate 70T can be a horizontal plate intersecting the display 10. The column 70P can be located between the base plate 70B and the top plate 70T, and can be connected to both the base plate 70B and the top plate 70T. The column 70P can be a vertical long rod.

[0087] Reference Figure 20 The light-shielding sheet 45 can be released from the main roller 72 in response to the upward movement of the lever 40, and the light-shielding sheet 45 can be guided between the housing frame 71 and the display 10 via the auxiliary roller 73. In response to the downward movement of the lever 40, the light-shielding sheet 45 can be wound around the main roller 72, and the light-shielding sheet 45 can be guided toward the main roller 72 via the auxiliary roller 73. The main roller 72 may be referred to as a roller. The auxiliary roller 73 may be referred to as an auxiliary roller, idler roller, or idler wheel.

[0088] For example, when the light-shielding sheet 45 unfolds from the main roller 72, causing the main roller 72 to rotate in a first rotational direction, an elastic member, such as a helical spring, embedded in the main roller 72 can elastically deform. When the main roller 72 rotates in a second rotational direction opposite to the first rotational direction, the elastic member of the main roller 72 can return to its original position. In this case, in response to the downward movement of the rod 40, the main roller 72 can rotate in the second rotational direction under the restoring force of the elastic member, and the light-shielding sheet 45 can be wound around the main roller 72.

[0089] The auxiliary roller 73 can change the travel direction of the light-shielding sheet 45 from a first direction DRa to a second direction DRb. The first direction DRa can be the direction in which the light-shielding sheet 45 extends between the main roller 72 and the auxiliary roller 73. The second direction DRb can be the direction in which the light-shielding sheet 45 extends between the auxiliary roller 73 and the rod 40. The second direction DRb can be parallel to the display 10. The second direction DRb can be parallel to the vertical direction.

[0090] The angle (θa) by which the light-blocking plate 45 is redirected from the first direction DRa to the second direction DRb by the auxiliary roller 73 can be a value obtained by subtracting the angle (θb) between the first direction DRa and the second direction DRb from 180 degrees. For example, the angle (θb) can be between approximately 100 degrees and 105 degrees.

[0091] However, due to the repulsive force of the light-shielding plate 45 itself, the portion 45' of the light-shielding plate 45 located between the auxiliary roller 73 and the rod 40 can protrude toward the display 10 (see [link]). Figure 20 The light shield 45 (C') can contact the display 10 to prevent the rod 40 from moving upward or downward. For example, the gap G between the light shield 45 and the display panel 11 can be 4 mm, and the portion 45' of the light shield 45 can be deformed toward the display panel 11 by more than 5 mm or more than 6.7 mm. Even if the protective vinyl sheet attached to the rear surface of the display panel 11 for protecting the display panel 11 is removed from the display panel 11, the adhesiveness of the protective vinyl sheet can remain on the display panel 11, and this adhesiveness can cause adhesion between the portion 45' of the light shield 45 and the display 10.

[0092] When the auxiliary roller 73 moves upward (see...) Figure 20 In the case of Ue), the angle (θa) at which the light-shielding sheet 45 is redirected from the first direction DRa to the second direction DRb by the auxiliary roller 73 can be reduced, and as a result, the bulging phenomenon of the display 10 can be reduced. However, depending on the movement of the central axis 73C of the auxiliary roller 73, the fixed area FM (see Figure 19 The starting point of the display 10 can also be raised, and therefore, the bezel area BM of the display 10 can be widened, and the image output area DM of the display 10 can be reduced. Here, the bezel area BM can be the side frame 20 (see...). Figure 19 The area on the front surface of the auxiliary roller 73 located below the housing frame 71. Based on the central axis 73C of the auxiliary roller 73, the area below the central axis 73C can be the border area BM, and the area above the central axis 73C can be the image output area DM.

[0093] When the auxiliary roller 73 moves downward (see...) Figure 20 The bezel area BM of the display 10 can be reduced accordingly, and the image output area DM of the display 10 can be expanded. However, the downward movement of the auxiliary roller 73 can be limited by the space between the PCB cover 19 and the auxiliary roller 73, and the contact area between the auxiliary roller 73 and the light shield 45 can be increased, thereby increasing the load on the motor. Specifically, when the auxiliary roller 73 moves downward, the angle (θa) by which the light shield 45 is redirected by the auxiliary roller 73 from the first direction DRa to the second direction DRb can be increased, and as a result, the bulging phenomenon of the display 10 can be further aggravated.

[0094] Reference Figures 21 to 23 In addition to the aforementioned auxiliary roller 73, the display device may also include an auxiliary roller 74. The auxiliary roller 73 may be referred to as a first auxiliary roller, a first auxiliary roller, a first idler roller, or a first idler wheel, and the auxiliary roller 74 may be referred to as a second auxiliary roller, a second auxiliary roller, a second idler roller, or a second idler wheel. The main roller 72 may be referred to as a roller.

[0095] Mounting bracket 24 can be connected to or fixed to vertical retainer 162. A pair of mounting brackets 24 can be opposite each other relative to main roller 72. Main roller 72 can extend horizontally. The left distal end of main roller 72 can be rotatably connected to left mounting bracket 24, and the right distal end of main roller 72 can be rotatably connected to right mounting bracket 24.

[0096] The first auxiliary roller 73 can extend elongatedly in the longitudinal direction of the main roller 72. The left distal end of the first auxiliary roller 73 can be rotatably connected to the left mounting bracket 24. The right distal end of the first auxiliary roller 73 can be rotatably connected to the right mounting bracket 24.

[0097] For example, the first auxiliary roller 73 may include a single tube.

[0098] In another example, the first auxiliary roller 73 may include a plurality of tubes 731, 732. A bracket 733 may be located between the first tube 731 and the second tube 732 and may be fixed to the housing frame 71. The bracket 733 may be spaced apart from a light-shielding sheet 45 wound around the first auxiliary roller 73. The first tube 731 may extend from the bracket 733 toward the left mounting bracket 24. The first tube 731 may form the left distal end of the first auxiliary roller 73 and may be rotatably coupled to the left mounting bracket 24. The right distal end of the first tube 731 may be rotatably coupled to the bracket 733. The second tube 732 may extend from the bracket 733 toward the right mounting bracket 24. The second tube 732 may form the right distal end of the first auxiliary roller 73 and may be rotatably coupled to the right mounting bracket 24. The left distal end of the second tube 732 may be rotatably coupled to the bracket 733.

[0099] The first bearing 73B1 can be mounted on the left mounting bracket 24 and can support the rotation of the left distal end of the first tube 731. The second bearing 73B2 can be mounted on the left side of the bracket 733 and can support the rotation of the right distal end of the first tube 731. The third bearing 73B3 can be mounted on the right mounting bracket 24 and can support the rotation of the right distal end of the second tube 732. The fourth bearing 73B4 can be mounted on the right side of the bracket 733 and can support the rotation of the left distal end of the second tube 732.

[0100] Therefore, the bending deformation of the first auxiliary roller 73 having multiple tubes 731, 732 can be less than the bending deformation of the first auxiliary roller 73 having a single tube.

[0101] The second auxiliary roller 74 may extend in the longitudinal direction of the first auxiliary roller 73. The left distal end of the second auxiliary roller 74 may be rotatably coupled to the left mounting bracket 24. The right distal end of the second auxiliary roller 74 may be rotatably coupled to the right mounting bracket 24. For example, the second auxiliary roller 74 may include a single tube. In another example, the second auxiliary roller 74 may include multiple tubes.

[0102] The first bearing 74B1 can be mounted on the left mounting bracket 24 and can support the rotation of the left distal end of the second auxiliary roller 74. The second bearing 74B2 can be mounted on the right mounting bracket 24 and can support the rotation of the right distal end of the second auxiliary roller 74.

[0103] Reference Figure 24 and Figure 25 The second auxiliary roller 74 can be located between the main roller 72 and the first auxiliary roller 73.

[0104] In the front-to-back direction, the central axis 74C of the second auxiliary roller 74 can be located between the central axis 72C of the main roller 72 and the central axis 73C of the first auxiliary roller 73. The central axis 74C of the second auxiliary roller 74 can be forward of the central axis 72C of the main roller 72 by a certain distance Da. The central axis 74C of the second auxiliary roller 74 can be backward of the central axis 73C of the first auxiliary roller 73 by a certain distance Db. For example, the distance Db can be 10.5 mm.

[0105] In the vertical direction, the central axis 74C of the second auxiliary roller 74 can be spaced downwards from the central axis 72C of the main roller 72 and the central axis 73C of the first auxiliary roller 73. The central axis 74C of the second auxiliary roller 74 can be spaced downwards from the central axis 72C of the main roller 72 by a certain distance Dc. The central axis 74C of the second auxiliary roller 74 can be spaced downwards from the central axis 73C of the first auxiliary roller 73 by a certain distance Dd. For example, the distance Dd can be 15.5 mm. For example, the central axis 72C of the main roller 72 and the central axis 73C of the first auxiliary roller 73 can be at the same height, and the distances D3 and D4 can be equal. Alternatively, the central axes 72C and 73C can be at different heights.

[0106] The main roller 72, the first auxiliary roller 73, and the second auxiliary roller 74 can be spaced apart from each other. The light-shielding sheet 45, which is wound around the main roller 72 to the maximum extent, can be spaced apart from the first auxiliary roller 73 and the second auxiliary roller 74.

[0107] The diameter D2 of the main roller 72 can be larger than the diameter D3 of the first auxiliary roller 73 and the diameter D4 of the second auxiliary roller 74. For example, the diameter D2 can be 32 mm. The diameter D4 of the second auxiliary roller 74 can be equal to the diameter D3 of the first auxiliary roller 73. For example, the diameter D4 can be 15 mm. Alternatively, the diameter D4 of the second auxiliary roller 74 can be larger than the diameter D3 of the first auxiliary roller 73.

[0108] A portion of the light-shielding sheet 45 may cover a portion of the outer peripheral surface of the second auxiliary roller 74, and a portion of the light-shielding sheet 45 may cover a portion of the outer peripheral surface of the first auxiliary roller 73. The second auxiliary roller 74 may change the travel direction of the light-shielding sheet 45 from the first direction DR1 to the second direction DR2. The first auxiliary roller 73 may change the travel direction of the light-shielding sheet 45 from the second direction DR2 to the third direction DR3.

[0109] The first direction DR1 can be the direction in which the light-shielding sheet 45 extends between the main roller 72 and the second auxiliary roller 74. The first direction DR1 can also be the direction connecting the distal end point P1 of the light-shielding sheet 45 wound around the main roller 72 and the starting point P2 of the light-shielding sheet 45 that contacts the second auxiliary roller 74.

[0110] The second direction DR2 can be the direction in which the light-shielding sheet 45 extends between the second auxiliary roller 74 and the first auxiliary roller 73. The second direction DR2 can also be the direction connecting the distal end point P3 of the light-shielding sheet 45 that contacts the second auxiliary roller 74 and the starting point P4 of the light-shielding sheet 45 that contacts the first auxiliary roller 73.

[0111] The third direction DR3 can be the direction in which the light-shielding plate 45 extends between the first auxiliary roller 73 and the rod 40. The third direction DR3 can also be the direction connecting the distal end point P5 of the light-shielding plate 45 in contact with the first auxiliary roller 73 and the starting point P6 of the light-shielding plate 45 in contact with the rod 40. The third direction DR3 can be parallel to the display 10. The third direction DR3 can be parallel to the vertical direction.

[0112] The angle (θ10) by which the light-blocking sheet 45 is redirected from the first direction DR1 to the second direction DR2 by the second auxiliary roller 74 can be obtained by subtracting the angle (θ11) between the first direction DR1 and the second direction DR2 from 180 degrees.

[0113] The angle (θ20) by which the light-shielding plate 45 is redirected from the second direction DR2 to the third direction DR3 by the first auxiliary roller 73 can be obtained by subtracting the angle (θ21) between the second direction DR2 and the third direction DR3 from 180 degrees. For example, the angle (θ21) can be approximately 143 degrees. The angle (θ20) can be smaller than the angle (θ10). Considering that the force applied to the first auxiliary roller 73 is greater than the force applied to the second auxiliary roller 74, the diameter of the second auxiliary roller 74 can be designed to be larger than the diameter of the first auxiliary roller 73, and the deformation of the second auxiliary roller 74 can be minimized. Furthermore, considering that the force applied to the main roller 72 is greater than the force applied to the first auxiliary roller 73 and the second auxiliary roller 74, the diameter of the main roller 72 can be designed to be larger than the diameters of the first auxiliary roller 73 and the second auxiliary roller 74, and the deformation of the main roller 72 can be minimized.

[0114] Angle (θ20) can be smaller than angle (θa) (see...) Figure 20 That is, the second auxiliary roller 74 can reduce the angle redirected by the first auxiliary roller 73. In addition, the tension of the main roller 72 can be increased due to the second auxiliary roller 74, and as a result, the tension applied to the light-shielding sheet 45 can be increased.

[0115] Therefore, due to the repulsive force of the light-shielding plate 45 itself, the phenomenon that the portion 45'' of the light-shielding plate 45 between the first auxiliary roller 73 and the rod 40 bulges toward the display 10 can be minimized (i.e., C'>C''). The variation of the gap G between the light-shielding plate 45 and the display 10 can be minimized. For example, the gap G can be 4 mm, and the portion 45" of the light-shielding plate 45 can deform toward the display 10 by less than 2 mm. When the contact or adhesion between the light-shielding plate 45 and the display 10 is minimized, the upward or downward movement of the rod 40 can be performed smoothly. Furthermore, since the bulging phenomenon of the light-shielding plate 45 is minimized, the gap G between the light-shielding plate 45 and the display 10 can be minimized, and as a result, the product thickness of the display device can be reduced, and the image quality of the image on the display 10 can also be improved.

[0116] See Figures 1 to 25The display device 1 may include: a display panel 11, which displays an image and is light-transmitting; a main roller 72, which extends along one side of the display panel 11; a light-shielding sheet 45, which has one end fixed to the main roller 72 and is wound around or unfolded from the main roller 72; a rod 40, which extends along the longitudinal direction of the main roller 72, and the other end of the light-shielding sheet 45 is fixed to the rod 40, and the rod 40 causes the light-shielding sheet 45 to move to cover or open the rear of the display panel 11; a first auxiliary roller 73, which extends along the longitudinal direction of the main roller 72, and the portion of the light-shielding sheet 45 located between the main roller 72 and the rod 40 is engaged on the first auxiliary roller 73; and a second auxiliary roller 74, which extends along the longitudinal direction of the main roller 72, and the portion of the light-shielding sheet 45 located between the main roller 72 and the first auxiliary roller 73 is engaged on the second auxiliary roller 74.

[0117] The second auxiliary roller 74 can redirect the travel direction of the light-shielding sheet 45 from the first direction DR1 to the second direction DR2, and the first auxiliary roller 73 can redirect the travel direction of the light-shielding sheet 45 from the second direction DR2 to the third direction DR3, and the third direction DR3 can be parallel to the display panel 11.

[0118] The angle (θ20) from the second direction DR2 to the third direction DR3 can be smaller than the angle (θ10) from the first direction DR1 to the second direction DR2.

[0119] The second auxiliary roller 74 can bend the light-shielding sheet 45 between the main roller 72 and the first auxiliary roller 73.

[0120] The rod 40 can move in a first moving direction to move away from the first auxiliary roller 73, or move in a second moving direction opposite to the first moving direction to move closer to the first auxiliary roller 73, and the central axis 74C of the second auxiliary roller 74 can be located between the central axis 72C of the main roller 72 and the central axis 73C of the first auxiliary roller 73, and can be spaced apart from the central axis 72C of the main roller 72 and the central axis 74C of the second auxiliary roller 74 in the second moving direction.

[0121] The central axis 73C of the first auxiliary roller 73 can be located at the same height as the central axis 72C of the main roller 72.

[0122] The diameter D2 of the main roller 72 can be greater than the diameter D3 of the first auxiliary roller 73 and the diameter D4 of the second auxiliary roller 74, and the diameter D4 of the second auxiliary roller 74 can be equal to or greater than the diameter D3 of the first auxiliary roller 73.

[0123] The light-shielding sheet 45, which is wound around the main roller 72 to the maximum extent, can be spaced apart from the second auxiliary roller 74.

[0124] The display device 1 may further include a housing frame 71 located on the rear side of the display panel 11 and adjacent to the first auxiliary roller 73. The light shield 45 may be movable between the display panel 11 and the housing frame 71. The first auxiliary roller 73 may include: a first tube 731, which forms one end of the first auxiliary roller 73; a second tube 732, which forms the other end of the first auxiliary roller 73; and a bracket 733, which is fixed to the housing frame 71 between the first tube 731 and the second tube 732, and the first tube 731 and the second tube 732 are rotatably connected to the bracket.

[0125] The display device 1 may also include a mounting bracket 24, one end of the main roller 72 being rotatably connected to the mounting bracket, and one end of the first auxiliary roller 73 and one end of the second auxiliary roller 74 being rotatably connected to the mounting bracket 24.

[0126] The display device 1 may also include a side frame 20, which extends along one side of the display panel 11 and covers a portion of the front surface of the display panel 11. The side frame 20 may be opposite to the first auxiliary roller 73 relative to the display panel 11, and the central axis 73C of the first auxiliary roller 73 may be aligned with the side of the side frame 20 facing the center of the display panel 11.

[0127] The display device 1 may also include a housing frame 71, which is adjacent to one side of the display panel 11 and faces the rear surface of the display panel 11. The light shield 45 can move between the display panel 11 and the housing frame 71, and the rod 40 can overlap one side of the housing frame 71 in the direction of movement of the rod 40.

[0128] The display device 1 may also include a side frame 20 extending along the other side of the display panel 11 and the display panel 11 being connected to the side frame; and a belt 32 connected to the side frame 20 so as to be movable in the longitudinal direction of the side frame 20, and one end of the rod 40 being fixed to the belt 32.

[0129] The display device 1 may also include: a motor 61; and a gearbox 62 that transmits the rotational force of the motor 61 to the belt 32.

[0130] The embodiments of this disclosure described above, or other embodiments, are not mutually exclusive or different from each other. Any or all elements of the embodiments of this disclosure described above may be combined or integrated with each other in configuration or function.

[0131] For example, configuration "A" described in one embodiment and accompanying drawings of this disclosure and configuration "B" described in another embodiment and accompanying drawings of this disclosure can be combined with each other. That is, although the combination between configurations is not directly described, such combination is possible except in cases where it is impossible to describe the combination.

[0132] The detailed description above should not be construed as restrictive in any respect, but rather as illustrative. The scope of this disclosure should be determined by a reasonable interpretation of the appended claims, and all modifications within the scope of equivalence of this disclosure are included within its scope.

Claims

1. A display device, the display device comprising: The display panel displays an image and is light-transmitting; A main roller that extends along one side of the display panel; A light-shielding sheet having one end fixed to the main roller, and the light-shielding sheet being wound around or unfolded from the main roller; A rod extending longitudinally along the main roller, the other end of the light-shielding sheet being fixed to the rod, and the rod causing the light-shielding sheet to move to cover or open the rear of the display panel; A first auxiliary roller extends along the longitudinal direction of the main roller, and the portion of the light-shielding sheet located between the main roller and the rod is engaged on the first auxiliary roller; as well as The second auxiliary roller extends along the longitudinal direction of the main roller, and the portion of the light-shielding sheet located between the main roller and the first auxiliary roller is engaged on the second auxiliary roller.

2. The display device according to claim 1, wherein The second auxiliary roller redirects the travel direction of the light-shielding sheet from the first direction to the second direction. The first auxiliary roller redirects the travel direction of the light-shielding sheet from the second direction to a third direction. The third direction is parallel to the display panel.

3. The display device of claim 2, wherein, The angle from the second direction to the third direction is less than the angle from the first direction to the second direction.

4. The display device according to claim 1, wherein The second auxiliary roller is located between the main roller and the first auxiliary roller, and causes the light-shielding sheet to bend.

5. The display device of claim 4, wherein, The rod moves in a first direction of movement to move away from the first auxiliary roller, or moves in a second direction of movement opposite to the first direction of movement to move closer to the first auxiliary roller, and The central axis of the second auxiliary roller is located between the central axis of the main roller and the central axis of the first auxiliary roller, and is spaced apart from the central axis of the main roller and the central axis of the second auxiliary roller in the second direction of movement.

6. The display device of claim 5, wherein, The central axis of the first auxiliary roller is located at the same height as the central axis of the main roller.

7. The display device according to claim 4, wherein, The diameter of the main roller is greater than the diameter of the first auxiliary roller and the diameter of the second auxiliary roller, and The diameter of the second auxiliary roller is equal to or greater than the diameter of the first auxiliary roller.

8. The display device according to claim 7, wherein, The light-shielding sheet, which is wound around the main roller to the maximum extent possible, is spaced apart from the second auxiliary roller.

9. The display device according to claim 1, further comprising a housing frame located behind the display panel and adjacent to the first auxiliary roller. in, The light-shielding plate can move between the display panel and the housing frame, and The first auxiliary roller includes: The first tube forms one end of the first auxiliary roller; A second tube, the second tube forming the other end of the first auxiliary roller; and A bracket is located between the first tube and the second tube, the bracket is fixed to the housing frame, and the first tube and the second tube are rotatably connected to the bracket.

10. The display device according to claim 1, further comprising a mounting bracket, one end of the main roller being rotatably connected to the mounting bracket. in, One end of the first auxiliary roller and one end of the second auxiliary roller are rotatably connected to the mounting bracket.

11. The display device of claim 1, further comprising a side frame extending along said one side of the display panel and covering a portion of the front surface of the display panel. in, The side frame is opposite to the display panel and the first sub-roller, and The central axis of the first auxiliary roller is aligned with the side of the side frame facing the center of the display panel.

12. The display device of claim 11, further comprising a housing frame adjacent to said side of the display panel and facing the rear surface of the display panel. in, The light-shielding plate can move between the display panel and the housing frame, and The rod overlaps with one side of the housing frame in the direction of the rod's movement.

13. The display device according to claim 1, further comprising: A side frame that extends along the other side of the display panel and to which the display panel is attached; as well as A belt, which is connected to the side frame so as to be movable in the longitudinal direction of the side frame. One end of the rod is fixed to the belt.

14. The display device according to claim 13, further comprising: motor; as well as A gearbox that transmits the rotational force of the motor to the belt.

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