Display device

Abstract

A display device is disclosed. The display device of the present disclosure may include: a display panel that displays an image and is light-transmitting; a roller extending along one side of the display panel; a light-blocking film having one end fixed to the roller and wound around or unwound from the roller; and a bar extending along the length of the roller, having the other end of the light-blocking film fixed to it, and moving the light-blocking film to cover or open the rear of the display panel, wherein the side of the bar between the two ends of the bar may include: a first side facing the rear of the display panel; a second side opposite to the first side; a curved surface connecting the first side and the second side; and a vertex of the curved surface eccentrically rearward from the center of the bar, and the light-blocking film may wrap around the first side, the second side, and the curved surface between the two ends of the bar.

Description

Technology Field

[0001] The present disclosure relates to a display device. More specifically, the present disclosure relates to a display device comprising a transparent display panel. Background Technology

[0002] As the information society develops, the demand for display devices is increasing in various forms. In response to this, various display devices such as LCD (Liquid Crystal Display Device), PDP (Plasma Display Panel), ELD (Electroluminescent Display), VFD (Vacuum Fluorescent Display), and OLED (Organic Light Emitting Diode) have recently been researched and are being used.

[0003] Among these, the LCD panel is equipped with a TFT substrate and a color substrate facing each other with a liquid crystal layer in between, and can display an image using light provided from a backlight unit. Additionally, the OLED panel can display an image by depositing a self-emissive organic layer on a substrate having a transparent electrode formed thereon.

[0004] Recently, much research is being conducted on transparent display panels that not only display images to the user but also allow the user to see behind the display panel. The problem to be solved

[0005] The present disclosure aims to solve the aforementioned problems and other problems.

[0006] Another objective may be to provide a display device equipped with a transparent display panel.

[0007] Another purpose may be to provide a structure and driving mechanism for opening and closing the rear of a transparent display panel.

[0008] Another purpose may be to provide a frame structure in which a transparent display panel and a light-blocking film are combined.

[0009] Another purpose may be to provide a driving mechanism for a film for light-blocking a transparent display panel.

[0010] Another objective may be to provide a structure that minimizes the thickness of the product and improves image quality by minimizing the gap between the transparent display panel and the light-blocking film.

[0011] Another objective may be to provide a structure that can minimize contact between the back of the transparent display panel and the light-shielding film. means of solving the problem

[0012] According to one aspect of the present disclosure for achieving the above or other purposes, a display device may comprise: a display panel that displays an image and is transparent; a roller extending along one side of the display panel; a light-blocking film having one end fixed to the roller and wound around or unwound from the roller; and a bar extending along the length of the roller, having the other end of the light-blocking film fixed to it, and moving the light-blocking film to cover or open the rear of the display panel, wherein the side of the bar between the two ends of the bar may comprise: a first side facing the rear of the display panel; a second side opposite to the first side; a curved surface connecting the first side and the second side; and a vertex of the curved surface eccentrically rearward from the center of the bar, and the light-blocking film may wrap around the first side, the second side, and the curved surface between the two ends of the bar. Effects of the invention

[0013] The effects of the display device according to the present disclosure are described as follows.

[0014] According to at least one of the embodiments of the present disclosure, a display device having a transparent display panel can be provided.

[0015] According to at least one of the embodiments of the present disclosure, a structure and driving mechanism for opening and closing the rear surface of a transparent display panel can be provided.

[0016] According to at least one of the embodiments of the present disclosure, a frame structure in which a transparent display panel and a light-shielding film are combined can be provided.

[0017] According to at least one of the embodiments of the present disclosure, a driving mechanism for a film for shielding light of a transparent display panel can be provided.

[0018] According to at least one of the embodiments of the present disclosure, a structure can be provided that minimizes the thickness of a product and improves image quality by minimizing the gap between a transparent display panel and a light-blocking film.

[0019] According to at least one of the embodiments of the present disclosure, a structure can be provided that minimizes contact between the rear surface of a transparent display panel and a light-shielding film.

[0020] Further scopes of the applicability of the present disclosure will become apparent from the following detailed description. However, since various changes and modifications within the spirit and scope of the present disclosure are clearly understood by those skilled in the art, specific embodiments, such as the detailed description and preferred embodiments of the present disclosure, should be understood as being given merely as examples. Brief explanation of the drawing

[0021] FIGS. 1 to 29 are drawings illustrating examples of display devices according to embodiments of the present disclosure. Specific details for implementing the invention

[0022] Hereinafter, embodiments disclosed in this specification will be described in detail with reference to the attached drawings. Identical or similar components regardless of drawing symbols are given the same reference number, and redundant descriptions thereof will be omitted.

[0023] The suffixes "module" and "part" used for components in the following description are assigned or used interchangeably solely for the ease of drafting the specification, and do not inherently possess distinct meanings or roles.

[0024] In addition, when describing the embodiments disclosed in this specification, if it is determined that a detailed description of related prior art may obscure the essence of the embodiments disclosed in this specification, such detailed description is omitted. Furthermore, the attached drawings are intended only to facilitate understanding of the embodiments disclosed in this specification, and the technical concept disclosed in this specification is not limited by the attached drawings; it should be understood that they include all modifications, equivalents, and substitutions that fall within the concept and technical scope of this disclosure.

[0025] Terms including ordinal numbers, such as first, second, etc., may be used to describe various components, but said components are not limited by said terms. These terms are used solely for the purpose of distinguishing one component from another.

[0026] When it is stated that one component is "connected" or "connected" to another component, it should be understood that while it may be directly connected or connected to that other component, there may also be other components in between. On the other hand, when it is stated that one component is "directly connected" or "directly connected" to another component, it should be understood that there are no other components in between.

[0027] A singular expression includes a plural expression unless the context clearly indicates otherwise.

[0028] In this application, terms such as "comprising" or "having" are intended to specify the existence of the features, numbers, steps, actions, components, parts, or combinations thereof described in the specification, and should be understood as not precluding the existence or addition of one or more other features, numbers, steps, actions, components, parts, or combinations thereof.

[0029] The directional indications of Up (U), Down (D), Left (Le), Right (Ri), Front (F), and Rear (R) shown in the drawings are for convenience of explanation only and do not limit the technical concepts disclosed in this specification.

[0031] Referring to FIG. 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 along the perimeter of 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).

[0032] 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).

[0033] Meanwhile, for the convenience of explanation, the lengths of the first and second long sides (LS1, LS2) are depicted and described as being longer than the lengths of the first and second short sides (SS1, SS2), but it is also possible for the lengths of the first and second long sides (LS1, LS2) to be approximately the same as or longer than the lengths of the first and second short sides (SS1, SS2).

[0034] The direction parallel to the long sides (LS1, LS2) of the display (10) can be called the left-right direction. The direction parallel to the short sides (SS1, SS2) of the display (10) can be called the up-down direction. The direction perpendicular to the long sides (LS1, LS2) and short sides (SS1, SS2) of the display (10) can be called the front-back direction.

[0035] The direction in which the display (10) displays an image can be called the front (F, z, see FIG. 4), and the opposite direction can be called the rear (R, -z, see FIG. 4). The first short side (SS1) can be called the left (Le, x). The second short side (SS2) can be called the right (Ri, -x). The first long side (LS1) can be called the top (U, y). The second long side (LS2) can be called the bottom (D, -y).

[0036] A stand (200) can support a display (10). The stand (200) can be referred to as a rack (200). A pair of legs (201, 202) can be extended vertically. A bridge (203) can connect the pair of legs (201, 202).

[0037] Hereinafter, a display panel using an Organic Light Emitting Diode (OLED) is described as an example, but the display panels applicable to the present disclosure are not limited thereto.

[0039] Referring to FIG. 2, a pixel may include a light-emitting region and a transparent region. In the light-emitting region, subpixels of RGBW (Red, Green, Blue, White) may be arranged vertically, and the transparent region, which has no subpixels, may be arranged next to the light-emitting region.

[0040] Accordingly, a display panel (11, see FIG. 7) having multiple pixels can not only display an image but also transmit light. The display panel (11, see FIG. 7) can be referred to as a transparent display panel or a transparent OLED panel.

[0042] Referring to FIG. 3, a pixel may include a light-emitting region and a transparent region. In the light-emitting region, RGW (Red, Green, White) or BGW (Blue, Green, White) subpixels may be arranged adjacent to each other, and the transparent region, which has no subpixels, may be arranged next to the light-emitting region.

[0043] Accordingly, a display panel (11, see FIG. 7) having multiple pixels can not only display an image but also transmit light. The display panel (11, see FIG. 7) can be referred to as a transparent display panel or a transparent OLED panel.

[0045] Referring to FIGS. 4 and 5, the display (10) may be coupled to a side frame (20). A housing frame (71) may be coupled to or fixed to the side frame (20). The housing frame (71) may cover the rear of the display (10). The housing frame (71) may be located at the rear of the display (10). The housing frame (71) may be referred to as a rear frame (71), a rear plate (71), or a rear base (71). The length of the housing frame (71) may correspond to the length of the long side of the display (10). The width of the housing frame (71) may be shorter than the length of the short side of the display (10).

[0046] There may be multiple motors (61). Each of the multiple motors (61) may be positioned at the rear of the display (10), adjacent to 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 motor (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 motor (61) and / or gearbox (62) may be coupled to or fixed to the rear of the housing frame (71). The motor (61) and / or gearbox (62) may not be exposed to the front of the display device (1) by the housing frame (71). The bar (40) may move up and down while sliding on the side frame (20).

[0048] Referring to FIG. 6 together with FIG. 5, the display (10) can be coupled to a side frame (20). A lower frame (18) can be coupled to or fixed to the side frame (20) and can support the display (10) from the lower side of the display (10). The side frame (20) may include a first part (21), a second part (22), and a third part (23).

[0049] The first part (21) can be coupled to the upper side of the display (10), the second part (22) can be coupled to the right side of the display (10), and the third part (23) can be coupled to the left side of the display (10). The lower frame (18) can be coupled to or fixed to the second part (22) and / or the third part (23) of the side frame (20).

[0050] Each of the vertical fixers (162) can be connected to each of the second part (22) and the third part (23), and the horizontal fixer (161) can be connected to the first part (21). The corner fixer (16) and the pulley (17) can be connected to the vertical fixer (161) and / or the horizontal fixer (162) at the upper corner.

[0052] Referring to FIG. 7 together with FIG. 6, the display panel (11) can output an image by dividing the image into multiple pixels and matching the color, brightness, and saturation for each pixel. The display panel (11) can be divided into an active area (AA) where the image is displayed and a de-active area (DA) where the image is not displayed. The display panel (11) can generate light corresponding to the color red, green, or blue according to a control signal.

[0053] The source PCB (14) may be adjacent to the lower edge of the display panel (11). The source PCB (14) may extend along the lower edge of the display panel (11). The source PCB (14) may be electrically connected to the display panel (11) via a Chip On Film (15). The source PCB (14) may be electrically connected to a timing controller board (T-CON board) via a cable (not shown), such as a Flexible Flat Cable (FFC).

[0054] A transparent panel (13) may be positioned in front of a display panel (11). The transparent panel (13) may be made of glass made of a transparent material. An adhesive film (12) may be positioned between the display panel (11) and the transparent panel (13) and may be bonded to the display panel (11) and the transparent panel (13). The adhesive film (12) may be an OCA film (Optically Clear Adhesive Film). The transparent panel (13) may be referred to as a front panel (13).

[0055] The adhesive film (12) can cover at least a portion of the rear surface of the transparent panel (13). For example, one side of the adhesive film (12) may be located closer to the center of the display panel (11) than the corresponding side of the transparent panel (13). The size or area of ​​the adhesive film (12) may be smaller than the size or area of ​​the transparent panel (13). For example, the upper side, left side, and right side of the adhesive film (12) may each be adjacent to the upper side, left side, and right side of the transparent panel (13), respectively, and the lower side of the adhesive film (12) may be spaced upward from the lower side of the transparent panel (13).

[0056] The size of the adhesive film (12) may correspond to the size of the display panel (11). For example, the diagonal length of the adhesive film (12) may be substantially the same as the diagonal length of the display panel (11). As another example, the diagonal length of the adhesive film (12) may be larger than the diagonal length of the display panel (11). A portion of the adhesive film (12) may be placed along the perimeter of the display panel (11) on the outside of the display panel (11). For example, the adhesive film (12) may form a rectangular line along the perimeter of the display panel (11).

[0057] The display panel (11), adhesive film (12), and transparent panel (13) can be called a display (10).

[0059] Referring to FIG. 8 together with FIG. 7, the lower frame (18) may include a horizontal section (18c), a first vertical section (18a), a second vertical section (18b), and a connecting section (18d). The horizontal section (18c) may be an elongated plate, and the first vertical section (18a) may extend upward from the front edge of the horizontal section (18c) to form a right angle with the horizontal section (18c). The second vertical section (18b) may extend downward from the front edge of the horizontal section (18c) to form a right angle with the horizontal section (18c). The connecting section (18d) may protrude from the rear surface of the first vertical section (18a). The connecting section (18d) may be formed on the upper surface of the horizontal section (18c) and / or on the rear surface of the first vertical section (18a). A plurality of connecting sections (18d) may be arranged at regular intervals.

[0060] The transparent panel (13) may have a connecting groove (13d) with a portion removed from the lower edge. 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 of the transparent panel (13) adjacent to the lower edge of the transparent panel (13). The horizontal portion (18c) of the lower frame (18) may support the transparent panel (13).

[0061] The source PCB (14) may be positioned on the horizontal portion (18c) of the lower frame (18). The source PCB (14) may face or contact the horizontal portion (18c) of the lower frame (18).

[0063] Referring to FIG. 9 together with FIG. 8, the PCB cover (19) may include a horizontal portion (19a), a folding portion (19c), a vertical portion (19b), and a fixed 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 folding portion (19c) may face the vertical portion (19b) with respect to the horizontal portion (19a). The folding portion (19c) may extend from the horizontal portion (19a) while bending toward the lower surface of the horizontal portion (19a). The folding portion (19c) may face the horizontal portion (19a). The fixed portion (19d) may be formed on the vertical portion (19b). The fixed portion (19d) can be formed by protruding forward of the vertical portion (19b) as the vertical portion (19b) is pressed. The fixed portion (19d) can be fixed to the connecting portion (18d) of the lower frame (18).

[0064] When the folding 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).

[0066] Referring to FIGS. 10 and 11, the display panel (11) may be placed on the back of the transparent panel (13). The display panel (11) may be adhered to or fixed to an adhesive film (12).

[0067] The frame fixer (16) may include a horizontal fixer (161), a vertical fixer (162), and a corner fixer (163). The horizontal fixer (161) may be formed integrally with the vertical fixer (162). The horizontal fixer (161) and the vertical fixer (162) may be referred to as the inner frame (161, 162). The horizontal fixer (161) may include a plate (161a) and a wall (161b). The plate (161a) may be extended horizontally and may be fixed to the first part (21) of the side frame (20). The wall (161b) may be formed on the plate (161a). The wall (161b) may protrude rearward from the outer surface of the plate (161a).

[0068] The vertical fixer (162) may include a plate (162a) and a wall (162b). The plate (162a) extends vertically and may be fixed to a third part (23) of the side frame (20). The wall (162b) may be formed on the plate (162a). The wall (162b) may protrude in the left and right directions from the outer surface of the plate (162a).

[0069] The corner fixer (163) may be a curved plate segment. The corner fixer (163) may be a plate (163a) curved along the corner of the vertical fixer (162) and the horizontal fixer (161). The pulley axis (163b) may extend outward from the outer surface of the plate (163a) of the corner fixer (163) toward the rear of the transparent panel (13). The corner fixer (163) may be bonded or fixed to the horizontal fixer (161) and / or the vertical fixer (162). The corner fixer (163) may be referred to as the left corner fixer (163) or the first corner fixer (163). If the corner fixer (163) is located at the corner formed by the first part (21) and the second part (22) of the side frame (20) (see FIG. 5), the corner fixer (163) may be called the right corner fixer (163) or the second corner fixer (163).

[0070] The pulley (17) can be inserted into the pulley shaft (163b). The pulley (17) can rotate on the pulley shaft (163b). The pulley (17) can be referred to as the upper pulley (17). For example, a lubricant for noise prevention can be applied between the pulley shaft (163b) and the pulley (17). As another example, the pulley (17) can be formed of a synthetic resin having low friction resistance, and the pulley shaft (163b) can be made of metal to prevent noise and make the rotation of the pulley (17) smooth. A belt (32) can be wound around the pulley (17).

[0071] The pulley (17) may include a wheel (17a) and a belt gear (17b). The wheel (17a) may be formed in the shape of a ring or a rim. A pulley shaft (163b) is inserted into the wheel (17a), and the wheel (17a) may rotate on the pulley shaft (163b). The belt gear (17b) may form the outer surface of the wheel (17a). A fixing washer (17c) may be coupled to the pulley shaft (163b) adjacent to the end of the pulley shaft (163b). For example, the fixing washer (17c) may be an E-ring. The fixing washer (17c) may prevent the pulley (17) from coming off the pulley shaft (163b). The first pulley (17) or the left pulley (17) may be located on the first corner fixer (163) or the left corner fixer (163), and the second pulley (17, see FIG. 5) or the right pulley (17, see FIG. 5) may be located on the second corner fixer (163) or the right corner fixer (163).

[0073] Referring to FIGS. 12 and 13, the mount bracket (24) can be attached to or fixed to the plate (162a) of the vertical fixer (162) and supported on the wall (162b) of the vertical fixer (162). The mount bracket (24) can be attached to or fixed to the wall (162b) of the vertical fixer (162) and supported on the plate (162a) of the vertical fixer (162).

[0074] The mount bracket (24) may include a main roller hole (24d1) and a sub-roller hole (24d2). The sub-roller hole (24d2) may face or overlap with the plate (162a) of the vertical fixer (162). The main roller hole (24d1) may be adjacent to the sub-roller hole (24d2). A bearing (B) may be mounted in the main roller hole (24d1) and / or the sub-roller hole (24d2).

[0075] The fixed bracket (60) may be attached to the vertical fixer (162) or to the housing frame (71). The fixed bracket (60) may also be formed integrally with the housing frame (71). The motor (61) and / or gearbox (62) may be attached to the fixed bracket (60). The motor (61) may provide rotational force, and the gearbox (62) may be connected to the motor (61) to transmit driving force. The rotation counter (63) may be fixed to the motor shaft (61a) and rotate together with the motor shaft (61a).

[0076] The joint (62a) is connected to the gearbox (62) and can rotate by receiving driving force from the gearbox (62). The axial direction of the joint (62a) may be parallel to the thickness direction of the display (10). The drive pulley (31) is fixed to the joint (62a) and can rotate together with the joint (62a). The belt (32) can be wound around the drive pulley (31). The belt (32) may be referred to as the drive belt (32) or the timing belt (32). The drive pulley (31) may be referred to as the lower pulley (31), the main pulley (31), or the suspending pulley (31).

[0078] Referring to FIGS. 14 and 15, the main roller (72) can be rotated by being coupled to or inserted into the main roller hole (24d1, see FIG. 13) of the mount bracket (24). The sub-roller (73) can be rotated by being coupled to or inserted into the sub-roller hole (24d2, see FIG. 13) of the mount bracket (24). The sunshade (45) can be wound onto the main roller (72) and supported by the sub-roller (73). As the sunshade (45) is unwound from the main roller (72), it can be guided by the sub-roller (73) and moved to the front of the housing frame (71). The sunshade (45) unwound from the main roller (72) can cover the front of the housing frame (71).

[0079] The pulley mount (79) can be attached to the rear of the housing frame (71). The pulley mount (79) may be a bracket or a plate. The pulley mount (79) may also be formed integrally with the housing frame (71). The drive pulley (31) can rotate on the pulley mount (79). The shaft (31a) of the drive pulley (31) is inserted into the pulley mount (79) and can be positioned by 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.

[0080] The sub-pulley (50) may be a tensioner (50). The sub-pulley (50) is located on the upper side of the pulley mount (79) and can push the belt (32). The belt (32) can maintain constant tension by the sub-pulley (50). There may be multiple sub-pulleys (51, 52).

[0082] Referring to FIGS. 16 and 17 together with FIGS. 15, 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 mount (79). As the drive pulley (31) rotates, the belt (32) moves up and down, and the belt (32) can maintain a constant tension by the sub-pulley (50).

[0083] The lower frame (18) to which the PCB cover (19) is attached may be located on the lower side of the housing frame (71). The main roller (72) and the sub-roller (73) may be located on the lower frame (18) and at the rear of the housing frame (71). The sunshade (45) may be wound and unwound on the main roller (72) and guided by the sub-roller (73) to cover the front of the housing frame (71).

[0084] The end of the light-blocking screen (45) can be fixed to the bar (40). As the belt (32) fixed to one end of the bar (40) moves, the bar (40) can move up and down. As the bar (40) moves, the light-blocking screen (45) can cover the rear of the display (10). The bar (40) is located at the rear of the display (10) and can move up and down the display (10).

[0086] Referring to FIGS. 18 and 19, a portion of the sunshade (45) may cover the outer surface of the bar (40), and a connecting member (41) may cover the sunshade (45) covering the bar (40). The connecting member (41) may have a plate shape bent into an L shape. The connecting member (41) may be referred to as a holder (41) or a bracket (41). The rear part (41a) of the connecting member (41) may cover the rear of the sunshade (45) covering the rear of the bar (40) and may extend long to the left and right along the bar (40). The lower part (41b) may be bent forward from the bottom of the rear part (41a).

[0087] A fastening member, such as a screw, can be fastened to the bar (40) by penetrating the coupling member (41), and as a result, the bar (40), the shading film (45), and the coupling member (41) can be joined together. For example, the fastening member can be fastened to the hole (40bh) of the bar (40) by penetrating the hole (41bh) of the lower part (41b) (see FIG. 18). As another example, the fastening member (F1) can be fastened to the hole (40ah) of the bar (40) by penetrating the hole (41h) of the coupling member (41) (see FIG. 25).

[0088] Guide holes (40G) can be formed at both ends of the bar (40). A pair of guide holes (40G) can be spaced apart from each other in the vertical direction. Fastening holes (40H) can be formed at both ends of the bar (40). Fastening holes (40H) can be located between a pair of guide holes (40G).

[0090] Referring to FIGS. 20 and 21, a coupler (42) may be adjacent to both ends of a bar (40). The coupler (42) may include a base (421) and a cap (422). The base (421) may be referred to as a first body (421), and the cap (422) may be referred to as a second body (422).

[0091] The base (421) may include a flat plate (421a), a wall (421b), and a pin (421c). The flat plate (421a) may be located on one end of the bar (40). The flat plate (421a) may have a shape corresponding to one end of the bar (40). The wall (421b) may protrude from the perimeter of the flat plate (421a) in the opposite direction of the bar (40). The walls (421b) may be spaced apart from each other along the perimeter of the flat plate (421a). The pin (421c) may protrude from the flat plate (421a) toward the bar (40). The pin (421c) may be inserted into guide holes (40G, see FIG. 19) formed at one end of the bar (40).

[0092] A portion of the belt (32) may be opposite to the bar (40) with respect to the flat plate (421a) and may be located on the flat plate (421a).

[0093] The cap (422) may be opposite to the flat portion (421a) with respect to the belt (32) and may be located inside the walls (421b). A gear (422g) may be formed on one side of the cap (422) facing the belt (32) on the flat portion (421a) and may engage with the gear (32g) of the belt (32). A fastening member (F2), such as a screw, may pass through the hole (422h) of the cap (422), the belt (32), and the flat portion (421a) and be fastened to the fastening hole (40H, see FIG. 19) of the bar (40).

[0094] Accordingly, the bar (40) can be secured to the belt (32) by a coupler (42). The left coupler (42) can secure a portion of the belt (32), which rotates by the driving force of the left motor (61, see FIG. 5 and 13), to the left end of the bar (40). The right coupler (42) can secure a portion of the belt (32), which rotates by the driving force of the right motor (61, see FIG. 5 and 4), to the right end of the bar (40).

[0096] Referring to FIG. 22, in response to the rotation of the belt (32, see FIG. 21), the bar (40) and the light shield (45) fixed to the belt (32) can move up and down. The light shield (45) moves upward as it is unwound from the main roller (72) and can gradually cover the rear of the display panel (11). The light shield (45) moves downward as it is wound onto the main roller (72) and can gradually open the rear of the display panel (11). A gap (G) can be formed between the light shield (45) and the display panel (11). For example, the gap (G) can be 4 mm.

[0098] Referring to FIGS. 23 and 24, the side of the bar (40') between the two ends in the longitudinal direction of the bar (40') may include a plurality of sides.

[0099] The first side (401') can form the front surface of the bar (40'). The first side (401') can be extended vertically. The first side (401') can be called the vertical side (401').

[0100] The second side (402') can form the rear surface of the bar (40'). The second side (402') can be extended vertically. The second side (402') can be referred to as the vertical side (402').

[0101] The third side (403') may be bent backward from the top of the first side (401') and may form part of the upper surface of the bar (40'). The third side (403') may be a convex curved surface.

[0102] The fourth side (404') may be bent forward from the top of the second side (402') and may form part of the upper surface of the bar (40'). The fourth side (404') may be a convex curved surface.

[0103] The third side (403') and the fourth side (404') can be referred to as the curved surface (403', 404') connecting the first side (401') and the second side (402').

[0104] The fifth side (405') can form the lower surface of the bar (40'). The fifth side (405') can be extended forward and backward. The fifth side (405') can connect the lower end of the first side (401') and the lower end of the second side (402'). The fifth side (405') can be called the horizontal side (405').

[0105] The length (L1') of the first side (401') may be greater than the length (L2') of the second side (402'). The length (L5') of the fifth side (405') may be smaller than the length (L2') of the second side (402'). The length (L4') of the fourth side (404') may be smaller than the length (L2') of the second side (402'). The length (L3') of the third side (403') may be smaller than the length (L4') of the fourth side (404'). The radius of curvature (R3') of the third side (403') may be smaller than the radius of curvature (R4') of the fourth side (404'). That is, the curvature of the third side (403') may be greater than the curvature of the fourth side (404'). For example, the radius of curvature (R3') of the 3rd side (403') can be 2 mm.

[0106] The vertex (40V') can be formed at the point where the third side (403') and the fourth side (404') meet. The vertex (40V') can be spaced forward from the centroid (C') of the cross-section of the bar (40') (see reference numeral (e') in FIG. 24). The vertex (40V') can be referred to as the inflection point (40V').

[0107] The shading film (45) can be positioned between both ends of the bar (40') and can cover the first side (401'), the third side (403'), the fourth side (404'), and the second side (402'). The shading film (45) can come into contact with the first side (401'), the third side (403'), the fourth side (404'), and the second side (402'). The connecting member (41) can cover a portion of the shading film (45) covering the second side (402'), and the fastening member (F1) can pass through the hole (41h) of the connecting member (41) and the shading film (45) and be fastened to the hole (40ah') of the bar (40'). A groove (40GH') can be formed on the second side (402'), and a projection (41P) of the connecting member (41) can insert a portion of the shading film (45) into the groove (40GH'). Accordingly, the shading film (45) can be fixed to the bar (40').

[0109] Referring to FIGS. 25 and 26, the side of the bar (40) between the two ends in the longitudinal direction of the bar (40) may include a plurality of sides.

[0110] The first side (401) may form part of the front surface of the bar (40). The first side (401) may be a convex curved surface.

[0111] The second side (402) can form the rear surface of the bar (40). The second side (402) can be extended vertically. The second side (402) can be referred to as the vertical side (402).

[0112] The third side (403) may be bent backward from the top of the first side (401) and may form part of the front surface of the bar (40) and part of the upper surface of the bar (40). The third side (403) may be a convex curved surface.

[0113] The fourth side (404) may be bent forward from the top of the second side (402) and may form part of the upper surface of the bar (40). The fourth side (404) may be a convex curved surface.

[0114] The third side (403) and the fourth side (404) can be referred to as the curved surface (403, 404) connecting the first side (401) and the second side (402).

[0115] The fifth side (405) can form part of the lower surface of the bar (40). The fifth side (405) can be extended forward and backward. The fifth side (405) can be connected to the lower end of the second side (402). The fifth side (405) can be called the horizontal side (405).

[0116] The sixth side (406) may form part of the lower surface of the bar (40). The sixth side (406) may connect the lower end of the first side (401) and the fifth side (405), and may be a convex curved surface.

[0117] The length (L1) of the first side (401) may be smaller than the length (L2) of the second side (402). The length (L3) of the third side (403) may be smaller than the length (L1) of the first side (401). The length (L4) of the fourth side (404) may be smaller than the length (L3) of the third side (403). The length (L5) of the fifth side (405) may be smaller than the length (L1) of the first side (401). The length (L6) of the sixth side (406) may be smaller than the length (L5) of the fifth side (405).

[0118] The radius of curvature (R3) of the third side (403) may be larger than the radius of curvature (R4) of the fourth side (404). That is, the curvature of the third side (403) may be smaller than the curvature of the fourth side (404). The radius of curvature (R3) of the third side (403) may increase as it moves further away from the fourth side (404). For example, the radius of curvature (R4) of the fourth side (404) may be 2 mm. For example, the radius of curvature (R3) of the third side (403) may gradually increase from 2 mm to 7 mm.

[0119] The radius of curvature (R1) of the first side (401) may be larger than the radius of curvature (R3) of the third side (403). That is, the curvature of the first side (401) may be smaller than the curvature of the third side (403). The radius of curvature (R1) of the first side (401) may be constant or may increase slightly as it moves away from the third side (403). For example, the radius of curvature (R1) of the first side (401) may be 45 mm.

[0120] The radius of curvature (R6) of the sixth side (406) may be smaller than the radius of curvature (R1) of the first side (401). That is, the curvature of the sixth side (406) may be larger than the curvature of the first side (401). For example, the radius of curvature (R6) of the sixth side (406) may be 2 mm.

[0121] The vertex (40V) can be formed at the point where the third side (403) and the fourth side (404) meet. The vertex (40V) can be spaced rearward from the centroid (C) of the cross-section of the bar (40) (see e in FIG. 26). The vertex (40V) can be referred to as the inflection point (40V).

[0122] The shading film (45) can be positioned between both ends of the bar (40) and can cover the first side (401), the third side (403), the fourth side (404), and the second side (402). The shading film (45) can come into contact with the first side (401), the third side (403), the fourth side (404), and the second side (402). The connecting member (41) can cover a portion of the shading film (45) covering the second side (402), and the fastening member (F1) can pass through the hole (41h) of the connecting member (41) and the shading film (45) and be fastened to the hole (40ah) of the bar (40). A groove (40GH) can be formed on the second side (402), and a projection (41P) of the connecting member (41) can insert a portion of the shading film (45) into the groove (40GH). Accordingly, the shading film (45) can be fixed to the bar (40).

[0124] Referring to FIGS. 27 and 28, the side of the bar (40'') between the two ends in the longitudinal direction of the bar (40'') may include a plurality of sides.

[0125] The first side (401'') can form the front surface of the bar (40''). The first side (401'') can be a plane inclined at a certain angle from a vertical line. The first side (401'') can be called an inclined side (401'').

[0126] The second side (402'') can form the rear surface of the bar (40''). The second side (402'') can be extended vertically. The second side (402'') can be called the vertical side (402). The angle (theta a) between the first side (401'') and the second side (402'') can be 14 degrees.

[0127] The third side (403'') may be bent backward from the top of the first side (401'') and may form part of the upper surface of the bar (40''). The third side (403'') may be a convex curved surface.

[0128] The fourth side (404'') may be bent forward from the top of the second side (402'') and may form part of the upper surface of the bar (40''). The fourth side (404'') may be a convex curved surface.

[0129] The third side (403'') and the fourth side (404'') can be referred to as the curved surface (403'', 404'') connecting the first side (401'') and the second side (402'').

[0130] The fifth side (405'') can form part of the lower surface of the bar (40''). The fifth side (405'') can be extended forward and backward. The fifth side (405'') can be connected to the bottom of the second side (402''). The fifth side (405'') can be called the horizontal side (405'').

[0131] The sixth side (406'') can form part of the lower surface of the bar (40''). The sixth side (406'') can connect the bottom of the first side (401'') and the fifth side (405''), and can be a convex curved surface.

[0132] The length (L1'') of the first side (401'') may be equal to or smaller than the length (L2'') of the second side (402''). The length (L3'') of the third side (403'') and the length (L4'') of the fourth side (404'') may be smaller than the length (L1'') of the first side (401''). The length (L3'') of the third side (403'') and the length (L4'') of the fourth side (404'') may be similar to each other. The length (L5'') of the fifth side (405'') may be smaller than the length (L3'') of the third side (403''). The length of the sixth side (406'') may be smaller than the length (L5'') of the fifth side (405'').

[0133] The radius of curvature (R3'') of the third side (403'') and the radius of curvature (R4'') of the fourth side (404'') may be the same or similar to each other. For example, the radius of curvature (R3'') of the third side (403'') and the radius of curvature (R4'') of the fourth side (404'') may be 1 mm. For example, the radius of curvature (R6'') of the sixth side (406'') may be 1 mm.

[0134] The vertex (40V'') can be formed at the point where the third side (403'') and the fourth side (404'') meet. The vertex (40V'') can be spaced backward from the centroid (C'') of the cross-section of the bar (40'') (see e'' in FIG. 28). The vertex (40V'') can be referred to as the inflection point (40V'').

[0135] The shading film (45) can be positioned between both ends of the bar (40'') and can cover the first side (401''), the third side (403''), the fourth side (404''), and the second side (402''). The shading film (45) can come into contact with the first side (401''), the third side (403''), the fourth side (404''), and the second side (402''). The connecting member (41) can cover a portion of the shading film (45) covering the second side (402''), and the fastening member (F1) can pass through the hole (41h) of the connecting member (41) and the shading film (45) and be fastened to the hole (40ah) of the bar (40). A groove (40GH'') can be formed on the second side (402''), and a projection (41P) of the connecting member (41) can insert a portion of the shading film (45) into the groove (40GH''). Accordingly, the shading film (45) can be fixed to the bar (40'').

[0137] Referring to FIG. 29 together with FIG. 23 to 28, a bar (40'; 40; 40'') that extends horizontally can be bent by a resultant force transmitted through a shading film (45) that wraps around the bar (40'; 40; 40''). The direction of the resultant force can be determined in correspondence with the shape of the bar (40'; 40; 40'') that the shading film (45) contacts.

[0138] The bar (40', see FIG. 23 and FIG. 24) can be bent forward convexly by the resultant force (Fn') transmitted to the bar (40') through the light-blocking film (45). For example, the bar (40') can be bent 0.04 mm toward the display panel (11, see FIG. 22).

[0139] The bar (40, see FIG. 25 and FIG. 26) can be bent convexly backward by the resultant force (Fn) transmitted to the bar (40) through the light-blocking film (45). For example, the bar (40') can be bent by 0.06 mm in a direction opposite to the direction toward the display panel (11, see FIG. 22).

[0140] The bar (40'', see FIG. 27 and FIG. 28) can be bent convexly backward by the resultant force (Fn'') transmitted to the bar (40) through the light-blocking film (45). For example, the bar (40'') can be bent by 0.09 mm in a direction opposite to the direction toward the display panel (11, see FIG. 22).

[0141] Accordingly, the bar (40') has a larger second moment of area than the bar (40; 40'') and thus has the least amount of bending, but the bar (40; 40'') that bends in a direction opposite to the direction toward the display panel (11, see FIG. 22) may be advantageous in preventing contact between the display panel (11) and the light-shielding film (45). That is, the bar (40; 40'') may be advantageous in securing a gap between the display panel (11) and the light-shielding film (45).

[0142] The shading film (45) covering the bar (40'; 40; 40'') may be lifted relative to the bar (40'; 40; 40'') by the repulsive force of the shading film (45), that is, the force causing the bent shading film (45) to straighten out. The amount of lifting of the shading film (45) may be the distance (Df', see FIG. 23; Df, see FIG. 25; Df'', see FIG. 27) from the front of the bar (40'; 40; 40'') to which the shading film (45) is spaced forward. The amount of lifting of the shading film (45) may increase as it moves further away from the bar (40'; 40; 40''). If the light-shielding film (45) lifts up and comes into contact with the display panel (11), vibration or noise may occur during the up-and-down movement of the light-shielding film (45), and the surface (printed layer) of the light-shielding film (45) may peel off or damage such as scratches may occur on the rear film of the display panel (11). In addition, due to friction between the display panel (11) and the light-shielding film (45), the film on the rear of the display panel (11) may be transferred to the printed layer of the light-shielding film (45). Furthermore, since the gap between the light-shielding film (45) and the display panel (11) may become relatively large in order to separate the lifted light-shielding film (45) from the display panel (11), a structure that minimizes the lifting of the light-shielding film (45) is required.

[0143] The lifting of the shading film (45) can be reduced as the radius of curvature of the surface of the bar (40'; 40; 40'') that the shading film (45) wraps around increases. As the vertex (40V'; 40V; 40V'') of the bar (40'; 40; 40'') that the shading film (45) wraps around is located further back, the starting position of the lifting of the shading film (45) is shifted further back, thereby reducing the lifting of the shading film (45) relative to the bar (40'; 40; 40'').

[0144] The vertex (40V', see FIG. 24) of the bar (40') may be spaced forward from the center (C') of the cross-section of the bar (40') (see reference numeral (e)). The vertex (40V, see FIG. 26; 40V'', see FIG. 28) of the bar (40; 40'') may be spaced backward from the center (C; C'') of the cross-section of the bar (40; 40'') (see reference numeral (e, e'')). That is, the amount of lifting of the shading film (45) covering the bar (40; 40'') may be smaller than the amount of lifting of the shading film (45) covering the bar (40').

[0145] Accordingly, the bar (40; 40'') may be advantageous in preventing contact between the light-shielding film (45) and the display panel (11) by minimizing the lifting of the light-shielding film (45). The amount of lifting of the light-shielding film (45) surrounding the bar (40'') having a flat fifth side (405'') may be smaller than the amount of lifting of the light-shielding film (45) surrounding the bar (40) having a curved fourth side (404). That is, the bar (40'') may be more advantageous than the bar (40) in minimizing the lifting of the light-shielding film (45). However, the bar (40) has greater rigidity than the bar (40'') and may bend less than the bar (40'').

[0147] Referring to FIGS. 1 to 29, the display device may include: a display panel that displays an image and is transparent; a roller extending along one side of the display panel; a light-blocking film having one end fixed to the roller and being wound around or unwound from the roller; and a bar extending along the length of the roller, having the other end of the light-blocking film fixed to it, and moving the light-blocking film to cover or open the rear of the display panel, wherein the side of the bar between the two ends of the bar may include: a first side facing the rear of the display panel; a second side opposite to the first side; a curved surface connecting the first side and the second side; and a vertex of the curved surface eccentrically oriented backward from the center of the bar, and the light-blocking film may wrap around the first side, the second side, and the curved surface between the two ends of the bar.

[0148] The center of the above bar may be the centroid of the longitudinal section of the above bar.

[0149] The curved surface of the above bar may further include: a third side bending from the first side; and a fourth side bending from the second side, and the vertex may be formed at the point where the third side and the fourth side meet.

[0150] The radius of curvature of the third side may be larger than the radius of curvature of the fourth side, and may increase as it moves further away from the fourth side.

[0151] The first side may be curvature, and the radius of curvature of the first side may be larger than the radius of curvature of the third side.

[0152] The radius of curvature of the fourth side may be 2 mm, the radius of curvature of the third side may gradually increase from 2 mm to 7 mm, and the radius of curvature of the first side may be 45 mm.

[0153] The length of the third side may be greater than the length of the fourth side and smaller than the length of the first side.

[0154] The above side of the above bar may further include: a fifth side opposite to the curved surface of the above bar, with one end connected to the second side; and a curved sixth side connected to the other end of the fifth side and the first side, and the radius of curvature of the sixth side may be smaller than the radius of curvature of the first side.

[0155] The radius of curvature of the third side may be equal to the radius of curvature of the fourth side, and the first side may form a plane inclined at a certain angle from the second side.

[0156] The radius of curvature of the third side may be 1 mm, and the angle between the first side and the second side may be 14 degrees.

[0157] The length of the first side may be greater than the length of the third side and the length of the fourth side.

[0158] The above side of the above bar may further include: a fifth side opposite to the curved surface of the above bar, with one end connected to the second side; and a curved sixth side connected to the other end of the fifth side and the first side, and the radius of curvature of the sixth side may be equal to the radius of curvature of the third side.

[0159] The display device may further include a coupling member opposite to the bar with respect to a portion of the light-shielding film covering the second side, and the coupling member may fix the portion of the light-shielding film to the bar.

[0160] The display device may further include: a side frame extending along the other side of the display panel and to which the display panel is coupled; and a belt coupled to the side frame so as to be movable in the longitudinal direction of the side frame, and one end of the bar may be fixed to the belt.

[0161] The above display device may further include: a motor; and a gearbox that transmits the rotational force of the motor to the belt.

[0163] Some or other embodiments of the present disclosure described above are not exclusive or distinguishable from one another. Some or other embodiments of the present disclosure described above may be used in combination or combined for their respective configurations or functions.

[0164] For example, this means that configuration A described in a specific embodiment and / or drawing and configuration B described in another embodiment and / or drawing can be combined. That is, even if the combination between configurations is not directly described, it means that combination is possible, except in cases where it is described that combination is impossible.

[0165] The foregoing detailed description should not be interpreted restrictively in all respects and should be considered exemplary. The scope of the invention shall be determined by a reasonable interpretation of the appended claims, and all modifications within the equivalent scope of the invention are included within the scope of the invention.

Claims

Claim 1 A display panel that displays an image and has light-transmitting properties; a roller extending along one side of the display panel; a light-blocking film having one end fixed to the roller and wound around or unwound from the roller; and a bar extending along the length of the roller, having the other end of the light-blocking film fixed to it, and moving the light-blocking film to cover or open the rear of the display panel, wherein the side of the bar between the two ends of the bar comprises: a first side facing the rear of the display panel; a second side opposite to the first side; a curved surface connecting the first side and the second side; and a vertex of the curved surface eccentrically positioned rearward from the center of the bar, wherein the curved surface comprises: a third side bending from the first side; A display device comprising a fourth side that bends from the second side, wherein the vertex is formed at the point where the third side and the fourth side meet, and the light-blocking film wraps the first side, the second side, and the curved surface between the two ends of the bar. Claim 2 A display device according to claim 1, wherein the center of the bar is the centroid of the longitudinal section of the bar. Claim 3 delete Claim 4 A display device according to claim 1, wherein the radius of curvature of the third side is larger than the radius of curvature of the fourth side and increases as it moves away from the fourth side. Claim 5 A display device according to claim 4, wherein the first side is curved, and the radius of curvature of the first side is larger than the radius of curvature of the third side. Claim 6 A display device according to claim 5, wherein the radius of curvature of the fourth side is 2 mm, the radius of curvature of the third side gradually increases from 2 mm to 7 mm, and the radius of curvature of the first side is 45 mm. Claim 7 In claim 5, the length of the third side is greater than the length of the fourth side and smaller than the length of the first side of the display device. Claim 8 In claim 5, the side of the bar comprises: a fifth side opposite to the curved surface of the bar, with one end connected to the second side; and further comprises a curved sixth side connected to the other end of the fifth side and the first side, wherein the radius of curvature of the sixth side is smaller than the radius of curvature of the first side, in a display device. Claim 9 A display device according to claim 1, wherein the radius of curvature of the third side is equal to the radius of curvature of the fourth side, and the first side forms a plane inclined at a certain angle from the second side. Claim 10 A display device according to claim 9, wherein the radius of curvature of the third side is 1 mm and the angle between the first side and the second side is 14 degrees. Claim 11 In claim 9, the length of the first side is greater than the length of the third side and the length of the fourth side of the display device. Claim 12 In claim 9, the side of the bar comprises: a fifth side opposite to the curved surface of the bar, with one end connected to the second side; and further comprises a curved sixth side connected to the other end of the fifth side and the first side, wherein the radius of curvature of the sixth side is the same as the radius of curvature of the third side, in a display device. Claim 13 A display device according to claim 1, further comprising a coupling member opposite to the bar with respect to a portion of the light-shielding film covering the second side, wherein the coupling member fixes the portion of the light-shielding film to the bar. Claim 14 A display device according to claim 1, further comprising: a side frame extending along the other side of the display panel and to which the display panel is coupled; and a belt coupled to the side frame so as to be movable in the longitudinal direction of the side frame, wherein one end of the bar is fixed to the belt. Claim 15 A display device according to claim 14, further comprising: a motor; and a gearbox that transmits the rotational force of the motor to the belt.

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