Display device

Abstract

A display device is disclosed. The display device according to the present disclosure may comprise: a display panel which displays an image and which is transparent; a main roller elongated along one side of the display panel; a light-shielding film of which one end is fixed to the main roller, and which is wound around or unwound from the main roller; a bar which extends in the longitudinal direction of the main roller, to which the other end of the light-shielding film is fixed, and which moves the light-shielding film so as to cover or open the rear of the display panel; a first sub-roller which extends in the longitudinal direction of the main roller, and on which a portion of the light-shielding film positioned between the main roller and the bar is caught; and a second sub-roller which extends in the longitudinal direction of the main roller, and on which a portion of the light-shielding film positioned between the main roller and the first sub-roller is caught.

Description

display device

[0001] The present disclosure relates to a display device.

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

[0003] Among these, the LCD panel has a TFT substrate and a color substrate that face each other with a liquid crystal layer in between, and can display images using light provided from a backlight unit. In addition, the OLED panel can display images by depositing an organic layer capable of self-luminescence on a substrate on which a transparent electrode is formed.

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

[0005] The present disclosure aims to solve the above-mentioned and other problems.

[0006] Another purpose may be to provide a display device having a transparent display panel.

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

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

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

[0010] Another purpose may be to provide a structure that can minimize the gap between the transparent display panel and the light shield, thereby minimizing the thickness of the product and improving the image quality.

[0011] Another purpose may be to provide a structure that can minimize the phenomenon of the shading film becoming convex toward the transparent display panel.

[0012] Another purpose may be to provide a structure that can minimize contact between the back surface of the transparent display panel and the shading film.

[0013] According to one aspect of the present disclosure for achieving the above or other purposes, a display device may include: a display panel that displays an image and has light-transmitting properties; a main roller that extends along one side of the display panel; a light-shielding film having one end fixed to the main roller and wound around or unwound from the main roller; a bar that extends in the longitudinal direction of the main roller, the other end of the light-shielding film being fixed, and that moves the light-shielding film to cover or open the rear of the display panel; a first sub-roller that extends in the longitudinal direction of the main roller and on which a portion of the light-shielding film located between the main roller and the bar is caught; and a second sub-roller that extends in the longitudinal direction of the main roller and on which a portion of the light-shielding film located between the main roller and the first sub-roller is caught.

[0014] The effects of the display device according to the present disclosure are described as follows.

[0015] According to at least one of the embodiments of the present disclosure, a display device having a transparent display panel can be provided.

[0016] According to at least one of the embodiments of the present disclosure, a structure and a driving mechanism for opening and closing the rear surface of a transparent display panel can be provided.

[0017] According to at least one of the embodiments of the present disclosure, a frame structure in which a transparent display panel and a light shield are combined can be provided.

[0018] According to at least one of the embodiments of the present disclosure, a driving mechanism of a film for light blocking of a transparent display panel can be provided.

[0019] According to at least one of the embodiments of the present disclosure, a structure can be provided that can minimize the thickness of a product and improve image quality by minimizing the gap between a transparent display panel and a light shield.

[0020] According to at least one of the embodiments of the present disclosure, a structure can be provided that can minimize the phenomenon in which a light-shielding film becomes convex toward a transparent display panel.

[0021] According to at least one of the embodiments of the present disclosure, a structure can be provided that can minimize contact between the back surface of a transparent display panel and a light shield.

[0022] Further scope of the applicability of the present disclosure will become apparent from the detailed description below. However, since various modifications and variations within the spirit and scope of the present disclosure will become apparent to those skilled in the art, it should be understood that the detailed description and specific examples, such as preferred embodiments of the present disclosure, are given by way of example only.

[0023] Figures 1 to 25 are drawings illustrating examples of display devices according to embodiments of the present disclosure.

[0024] Hereinafter, embodiments disclosed in this specification will be described in detail with reference to the attached drawings. Regardless of the drawing numbers, identical or similar components are given the same reference numbers and redundant descriptions thereof will be omitted.

[0025] The suffixes "module" and "part" used for components in the following description are given or used interchangeably only for the convenience of writing specifications, and do not have distinct meanings or roles in themselves.

[0026] In addition, when describing the embodiments disclosed in this specification, if it is determined that a detailed description of a related known technology may obscure the gist of the embodiments disclosed in this specification, the detailed description thereof will be omitted. In addition, the attached drawings are only intended to facilitate easy understanding of the embodiments disclosed in this specification, and the technical ideas disclosed in this specification are not limited by the attached drawings, and should be understood to include all modifications, equivalents, and substitutes included in the spirit and technical scope of the present disclosure.

[0027] Terms that include ordinal numbers, such as first, second, etc., may be used to describe various components, but the components are not limited by these terms. These terms are used solely to distinguish one component from another.

[0028] When a component is referred to as being "connected" or "connected" to another component, it should be understood that it may be directly connected or connected to that other component, but that there may be other components intervening. Conversely, when a component is referred to as being "directly connected" or "connected" to another component, it should be understood that there are no other components intervening.

[0029] Singular expressions include plural expressions unless the context clearly indicates otherwise.

[0030] In this application, terms such as “include” or “have” are intended to specify the presence of a feature, number, step, operation, component, part or combination thereof described in the specification, but should be understood not to exclude in advance the possibility of the presence or addition of one or more other features, numbers, steps, operations, components, parts or combinations thereof.

[0031] The direction indications of up (U), down (D), left (Le), right (Ri), front (F), and back (R) shown in the drawings are only for convenience of explanation, and the technical ideas disclosed in this specification are not limited thereby.

[0032]

[0033] Referring to FIG. 1, a 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 positioned below the display (10) and the side frame (20). Alternatively, the housing (90) may be positioned above, to the left, or below the display (10) and the side frame (20).

[0034] The display (10) may include a first long side (LS1), a second long side (LS2) opposite 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 the first short side (SS1).

[0035] Meanwhile, for convenience of explanation, the lengths of the first and second long sides (LS1, LS2) are illustrated and described as being longer than the lengths of the first and second short sides (SS1, SS2), but it may also be possible for the lengths of the first and second long sides (LS1, LS2) to be approximately equal to or longer than the lengths of the first and second short sides (SS1, SS2).

[0036] The direction parallel to the long sides (LS1, LS2) of the display (10) may be referred to as the left-right direction. The direction parallel to the short sides (SS1, SS2) of the display (10) may be referred to as the up-down direction. The direction perpendicular to the long sides (LS1, LS2) and short sides (SS1, SS2) of the display (10) may be referred to as the front-back direction.

[0037] The direction in which the display (10) displays an image may be referred to as the front (F, z), and the opposite direction may be referred to as the rear (R). The first short side (SS1) may be referred to as the left (Le, x). The second short side (SS2) may be referred to as the right (Ri). The first long side (LS1) may be referred to as the upper side (U, y). The second long side (LS2) may be referred to as the lower side (D).

[0038] Hereinafter, a display panel using an organic light emitting diode (OLED) will be described as an example, but the display panel applicable to the present disclosure is not limited thereto.

[0039]

[0040] Referring to FIG. 2, a pixel may include a light emitting region and a transparent region. In the light emitting region, RGBW (Red, Green, Blue, White) subpixels may be arranged vertically, and the transparent region without subpixels may be arranged next to the light emitting region.

[0041] Accordingly, a display panel (11, see Fig. 7) having a plurality of pixels can not only display images but also transmit light. The display panel (11, see Fig. 7) may be referred to as a transparent display panel or a transparent OLED panel.

[0042]

[0043] Referring to FIG. 3, a pixel may include a light emitting region and a transparent region. In the light emitting region, subpixels of RGW (Red, Green, White) or BGW (Blue, Green, White) may be arranged adjacent to each other, and the transparent region without subpixels may be arranged next to the light emitting region.

[0044] Accordingly, a display panel (11, see Fig. 7) having a plurality of pixels can not only display images but also transmit light. The display panel (11, see Fig. 7) may be referred to as a transparent display panel or a transparent OLED panel.

[0045]

[0046] Referring to FIGS. 4 and 5, the display (10) may be coupled to a side frame (20). A housing frame (71) may be coupled 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).

[0047] There may be a plurality of motors (61). Each of the plurality of motors (61) may be disposed 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 gear box (62) may correspond to the motor (61). Each of the plurality of gear boxes (62) may be connected to each of the plurality of motors (61). The dual driving force provided by the pair of motors (61) may be transmitted by the pair of gear boxes (62). The motor (61) and / or the gear box (62) may be coupled to or fixed to the rear of the housing frame (71). The motor (61) and / or the gear box (62) may not be exposed to the front of the display device (1) by the housing frame (71). The bar (40) may slide on the side frame (20) and move up and down.

[0048]

[0049] Referring to FIG. 6 together with FIG. 5, the display (10) can be coupled to a side frame (20). The lower frame (18) can be coupled 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) can include a first part (21), a second part (22), and a third part (23).

[0050] 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 or fixed to the second part (22) and / or the third part (23) of the side frame (20).

[0051] Each of the vertical fixers (162) can be coupled to each of the second part (22) and the third part (23), and the horizontal fixer (161) can be coupled to the first part (21). The corner fixer (16) and the pulley (17) can be coupled to the vertical fixer (161) and / or the horizontal fixer (162) at the upper corner.

[0052]

[0053] Referring to FIG. 7 together with FIG. 6, the display panel (11) can output an image by dividing an image into a plurality of pixels and adjusting the color, brightness, and saturation for each pixel. The display panel (11) can be divided into an active area (AA) where an image is displayed and a de-active area (DA) where an image is not displayed. The display panel (11) can generate light corresponding to the color of red, green, or blue according to a control signal.

[0054] A source PCB (14) may be adjacent to a lower side of a 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 COF (15, Chip On Film). The source PCB (14) may be electrically connected to a timing controller board (T-CON board) via a cable (not shown) such as an FFC (Flexible Flat Cable).

[0055] A transparent panel (13) may be positioned in front of the display panel (11). The transparent panel (13) may be made of transparent glass. 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).

[0056] The adhesive film (12) can cover at least a portion of the back surface of the transparent panel (13). For example, one side of the adhesive film (12) can be positioned 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 film (12) can be smaller than the size or area of ​​the transparent panel (13). For example, the upper side, the left side, and the right side of the adhesive film (12) can be adjacent to the upper side, the left side, and the right side of the transparent panel (13), respectively, and the lower side of the adhesive film (12) can be spaced upward from the lower side of the transparent panel (13).

[0057] 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). In another example, the diagonal length of the adhesive film (12) may be greater than the diagonal length of the display panel (11). A portion of the adhesive film (12) may be arranged 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).

[0058] The display panel (11), the adhesive film (12), and the transparent panel (13) may be referred to as a display (10).

[0059]

[0060] Referring to FIG. 8 together with FIG. 7, the lower frame (18) may include a horizontal portion (18c), a first vertical portion (18a), a second vertical portion (18b), and a coupling portion (18d). The horizontal portion (18c) may be an elongated plate, and the first vertical portion (18a) may extend upward from the front edge of the horizontal portion (18c) at a right angle to the horizontal portion (18c). The second vertical portion (18b) may extend downward from the front edge of the horizontal portion (18c) at a right angle to the horizontal portion (18c). The coupling portion (18d) may protrude from the rear surface of the first vertical portion (18a). The coupling 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). A plurality of coupling portions (18d) may be arranged at regular intervals.

[0061] The transparent panel (13) may have a joining groove (13d) partially removed from the lower side. The joining groove (13d) of the transparent panel (13) may correspond to the joining portion (18d) of the lower frame (18). The joining portion (18d) of the lower frame (18) may be inserted into the joining 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 lower side of the transparent panel (13). The horizontal portion (18c) of the lower frame (18) may support the transparent panel (13).

[0062] 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]

[0064] 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 fixing portion (19d). The horizontal portion (19a) may be a long, extended plate and may cover the source PCB (14). The vertical portion (19b) may be formed to extend upward or be bent from an edge of the horizontal portion (19a). 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 being bent toward the lower surface of the horizontal portion (19a). The folding portion (19c) may face the horizontal portion (19a). The fixing 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 joining portion (18d) of the lower frame (18).

[0065] When the folding part (19c) of the PCB cover (19) is connected to the horizontal part (18c) of the lower frame (18), and the fixing part (19d) of the PCB cover (19) is connected to the connecting part (18d) of the lower frame (18), the PCB cover (19) can cover the source PCB (14).

[0066]

[0067] 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 or fixed to an adhesive film (12).

[0068] 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 inner frames (161, 162). The horizontal fixer (161) may include a plate (161a) and a wall (161b). The plate (161a) may extend longwise from side to side 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).

[0069] The vertical fixer (162) may include a plate (162a) and a wall (162b). The plate (162a) may extend vertically and be fixed to the third part (23) of the side frame (20). The wall (162b) may be formed on the plate (162a). The wall (162b) may protrude left and right from the outer surface of the plate (162a).

[0070] 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 shaft (163b) may protrude and extend 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 a left corner fixer (163) or a first corner fixer (163). When 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 referred to as a right corner fixer (163) or a second corner fixer (163).

[0071] The pulley (17) can be inserted into the pulley shaft (163b). The pulley (17) can rotate on the pulley shaft (163b). The pulley (17) may be referred to as an upper pulley (17). For example, a lubricant for noise prevention may be applied between the pulley shaft (163b) and the pulley (17). As another example, the pulley (17) may be formed of a synthetic resin having low frictional resistance, and the pulley shaft (163b) may include metal to prevent noise and ensure smooth rotation of the pulley (17). The belt (32) may be wound around the pulley (17).

[0072] The pulley (17) may include a wheel (17a) and a belt gear (17b). The wheel (17a) may be formed in a ring or rim shape. The 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 an outer circumferential surface of the wheel (17a). A fixed washer (17c) may be coupled to the pulley shaft (163b) adjacent to an end of the pulley shaft (163b). For example, the fixed washer (17c) may be an E-ring. The fixed washer (17c) may prevent the pulley (17) from being separated from the pulley shaft (163b). The first pulley (17) or left pulley (17) can be positioned at the first corner fixer (163) or left corner fixer (163), and the second pulley (17, see FIG. 5) or right pulley (17, see FIG. 5) can be positioned at the second corner fixer (163) or right corner fixer (163).

[0073]

[0074] Referring to FIGS. 12 and 13, the mount bracket (24) can be coupled 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 coupled or fixed to the wall (162b) of the vertical fixer (162) and supported on the plate (162a) of the vertical fixer (162).

[0075] 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). The bearing (B) may be mounted in the main roller hole (24d1) and / or the sub roller hole (24d2).

[0076] The fixed bracket (60) can be coupled to the vertical fixer (162) or coupled to the housing frame (71). The fixed bracket (60) can also be formed integrally with the housing frame (71). A motor (61) and / or a gear box (62) can be coupled to the fixed bracket (60). The motor (61) can provide rotational force, and the gear box (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 together with the motor shaft (61a).

[0077] The joint (62a) is connected to the gear box (62) and can rotate by receiving driving force from the gear box (62). The axial direction of the joint (62a) can 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) can be referred to as a drive belt (32) or a timing belt (32). The drive pulley (31) can be referred to as a lower pulley (31), a main pulley (31), or a suspending pulley (31).

[0078]

[0079] Referring to FIGS. 14 and 15, the main roller (72) can be coupled to or inserted into the main roller hole (24d1, see FIG. 13) of the mount bracket (24) and rotated. The sub roller (73) can be coupled to or inserted into the sub roller hole (24d2, see FIG. 13) of the mount bracket (24) and rotated. One end of the shade film (45) can be fixed to the main roller (72). The shade film (45) can be wrapped around the main roller (72) and supported by the sub roller (73). The shade film (45) can be guided by the sub roller (73) as it is released from the main roller (72) and moved to the front of the housing frame (71). The shade film (45) released from the main roller (72) can cover the front of the housing frame (71).

[0080] The pulley mount (79) can be coupled to the rear of the housing frame (71). The pulley mount (79) can be a bracket or a plate. The pulley mount (79) can also be formed integrally with the housing frame (71). The drive pulley (31) can rotate in the pulley mount (79). The shaft (31a) of the drive pulley (31) is inserted into the pulley mount (79) and can be positionally aligned by the pulley mount (79). For example, the drive pulley (31) can rotate in the pulley mount (79), but cannot move up and down or left and right.

[0081] 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 a constant tension by the sub pulley (50). There may be a plurality of sub pulleys (51, 52).

[0082]

[0083] Referring to FIGS. 16 and 17 together with FIG. 15, the driving force provided by the motor (61) can be transmitted to the driving pulley (31) through the gear box (62). The driving pulley (31) can rotate on the pulley mount (79). As the driving pulley (31) rotates, the belt (32) moves up and down, and the belt (32) can maintain a constant tension by the sub pulley (50).

[0084] The lower frame (18) to which the PCB cover (19) is combined can be positioned on the lower side of the housing frame (71). The main roller (72) and the sub roller (73) are positioned on the lower frame (18) and can be positioned at the rear of the housing frame (71). The shade film (45) is wound and unwound around the main roller (72) and guided by the sub roller (73) to cover the front of the housing frame (71).

[0085] The end of the shade (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 shade (45) can cover the back of the display (10). The bar (40) is located at the rear of the back of the display (10) and can move up and down of the display (10).

[0086]

[0087] Referring to FIGS. 18 and 19, the bar (40) can be extended left and right, and a portion of the shade film (45) can cover the outer surface of the bar (40). The connecting member (41) can cover the shade film (45) covering the bar (40). The connecting member (41) can have an L-shaped bent plate shape. The rear part (41a) of the connecting member (41) can cover the rear of the shade film (45) covering the rear surface of the bar (40), and can be extended left and right along the bar (40). The lower part (41b) can be bent forward from the lower end of the rear part (41a) and can be adjacent to the lower side of the bar (40).

[0088] A fastening member (F4) such as a screw can be fastened to the bar (40) by penetrating the joining member (41). Accordingly, the bar (40), the shading film (45), and the joining member (41) can be joined to each other.

[0089] A coupler (42) may be adjacent to both ends of the 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).

[0090] The base (421) may include a flat portion (421a), a wall (421b), and a pin. The flat portion (421a) may be positioned on one end of the bar (40). The flat portion (421a) may have a shape corresponding to one end of the bar (40). The wall (421b) may protrude from the periphery of the flat portion (421a) in an opposite direction of the bar (40). The walls (421b) may be spaced apart from each other along the periphery of the flat portion (421a). The pin may protrude from the flat portion (421a) toward the bar (40) and may be inserted into a hole formed in one end of the bar (40).

[0091] A portion of the belt (32) may be opposite the bar (40) to the flat portion (421a) and may be positioned on the flat portion (421a).

[0092] The cap (422) may be opposite the flat portion (421a) with respect to the belt (32) and may be positioned inside the lugs (421b). The gear (422g) may be formed on one side of the cap (422) facing the belt (32) on the flat portion (421a) and may be engaged with the gear (32g) of the belt (32). A fastening member such as a screw may be fastened to the hole of the bar (40) by penetrating the hole (422h) of the cap (422), the belt (32), and the flat portion (421a).

[0093] Accordingly, the bar (40) can be fixed to the belt (32) by the coupler (42). The left coupler (42) can fix a part of the belt (32) that rotates by the driving force of the left motor (61, see FIGS. 5 and 13) to the left end of the bar (40). The right coupler (42) can fix a part of the belt (32) that rotates by the driving force of the right motor (61, see FIGS. 5 and 4) to the right end of the bar (40).

[0094] In response to the rotation of the belt (32), the bar (40) fixed to the belt (32) and the shade film (45) can move up and down. The shade film (45) can be moved upwards while being released from the main roller (72) to gradually cover the rear of the display panel (11). The shade film (45) can be moved downwards while being wound around the main roller (72) to gradually open the rear of the display panel (11).

[0095] The side frame (20) may cover a portion of the front of the display (10). The front of the side frame (20) may define a bezel area (BM, see FIG. 1). The bar (40) of FIG. 19 may be positioned at the bottom dead center. The bar (40) may overlap the top of the housing frame (71) in the vertical direction (i.e., the direction of movement of the bar (40)), and when the bottom of the bar (40) touches the top of the housing frame (71), the descent of the bar (40) may be restricted. The area of ​​the display (10) between the side frame (20) and the bar (40) positioned at the bottom dead center may be referred to as a fixed area (FM, see FIG. 1). The rear of the fixed area (FM) may always be covered by a shading film (45). The upper side of the side frame (20) (i.e., one side of the side frame (20) facing the center of the display (10)) can be aligned with the central axis (73C) of the sub roller (73), and the position of the central axis (73C) of the sub roller (73) can correspond to the starting point of the fixed area (FM). The area of ​​the display (10) excluding the fixed area (FM) can be referred to as a floating area (AM, see FIG. 1). The bar (40) can open the rear of the floating area (AM) or cover at least a portion of the rear of the floating area (AM).

[0096] Meanwhile, the bottom plate (70B) may be adjacent to the top of the housing frame (71) and may be coupled to the housing frame (71). The bottom plate (70B) may be a horizontal plate intersecting the housing frame (71). The top plate (70T) may be opposite the bottom plate (70B) and may be coupled to the top of the display (10). The top plate (70T) may be a horizontal plate intersecting the display (10). The poles (70P) may be positioned between the bottom plate (70B) and the top plate (70T) and may be coupled to the bottom plate (70B) and the top plate (70T). The poles (70P) may be long bars in a vertical direction.

[0097]

[0098] Referring to FIG. 20, in response to the rise of the bar (40), the shade film (45) can be released from the main roller (72), and the shade film (45) can be guided between the housing frame (71) and the display (10) by the sub roller (73). In response to the lowering of the bar (40), the shade film (45) can be wrapped around the main roller (72), and the shade film (45) can be guided toward the main roller (72) by the sub roller (73). The main roller (72) can be referred to as a roller (72). The sub roller (73) can be referred to as an auxiliary roller (73), an idle roller (73), or an idler (73).

[0099] For example, an elastic member such as a coil spring built into the main roller (72) can be elastically deformed when the shade film (45) is released from the main roller (72) and the main roller (72) is rotated in the first rotational direction. The elastic member of the main roller (72) can be restored when the main roller (72) is rotated in a second rotational direction opposite to the first rotational direction. In this case, in response to the lowering of the bar (40), the main roller (72) can be rotated in the second rotational direction by the restoring force of the elastic member, and the shade film (45) can be wrapped around the main roller (72).

[0100] The sub roller (73) can change the direction of travel of the shade film (45) from a first direction (DRa) to a second direction (DRb). The first direction (DRa) may be a direction in which the shade film (45) extends between the main roller (72) and the sub roller (73). The second direction (DRb) may be a direction in which the shade film (45) extends between the sub roller (73) and the bar (40). The second direction (DRb) may be parallel to the display (10). The second direction (DRb) may be parallel to the vertical direction.

[0101] The angle (theta a) at which the shading film (45) is switched from the first direction (DRa) to the second direction (DRb) by the sub roller (73) may be a value obtained by subtracting the angle (theta b) between the first direction (DRa) and the second direction (DRb) from 180 degrees. For example, the angle (theta b) may be between about 100 degrees and 105 degrees.

[0102] However, due to the repulsive force of the shading film (45) itself, the portion (45') of the shading film (45) between the sub roller (73) and the bar (40) may become convex toward the display (10) (see C' of FIG. 20) and may come into contact with the display (10) to impede the rising or falling of the bar (40). For example, the gap (G) between the shading film (45) and the display panel (11) may be 4 mm, and the portion (45') of the shading film (45) may be deformed by 5 mm or more or 6.7 mm or more toward the display panel (11). Even if the protective vinyl attached to the back of the display panel (11) to protect the display panel (11) is removed from the display panel (11), adhesiveness for the protective vinyl may remain on the display panel (11), and this adhesiveness may cause adhesion of the portion (45') of the shading film (45) and the display (10).

[0103] When the sub roller (73) is moved upward (see Ue in FIG. 20), the angle (theta a) at which the shading film (45) is converted from the first direction (DRa) to the second direction (DRb) by the sub roller (73) can be reduced, and as a result, the phenomenon of the display (10) becoming convex can be reduced. However, depending on the shift of the central axis (73C) of the sub roller (73), the starting point of the fixed area (FM, see FIG. 19) can also be raised, and accordingly, 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) may be an area on the front side of the side frame (20, see FIG. 19) located below the housing frame (71). Based on the central axis (73C) of the sub roller (73), the area below the central axis (73C) may be a bezel area (BM), and the area above the central axis (73C) may be an image output area (DM).

[0104] If the sub roller (73) is moved downward (see De of FIG. 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 widened. However, moving the sub roller (73) downward may be limited by the space between the PCB cover (19) and the sub roller (73), and the contact area between the sub roller (73) and the light shield (45) may increase, which may increase the load on the motor. In particular, as the sub roller (73) is moved downward, the angle (theta a) at which the light shield (45) is converted from the first direction (DRa) to the second direction (DRb) by the sub roller (73) may increase, and as a result, the phenomenon of the display (10) becoming convex may be further worsened.

[0105]

[0106] Referring to FIGS. 21 to 23, the display device may further include a sub roller (74) in addition to the aforementioned sub roller (73). The sub roller (73) may be referred to as a first sub roller (73), a first auxiliary roller (73), a first idle roller (73), or a first idler (73), and the sub roller (74) may be referred to as a second sub roller (74), a second auxiliary roller (74), a second idle roller (74), or a second idler (74). The main roller (72) may be referred to as a roller (72).

[0107] The mount bracket (24) can be coupled or fixed to the vertical fixer (162). A pair of mount brackets (24) can be opposite each other with respect to the main roller (72). The main roller (72) can be extended left and right. The left end of the main roller (72) can be rotatably coupled to the left mount bracket (24), and the right end of the main roller (72) can be rotatably coupled to the right mount bracket (24).

[0108] The first sub-roller (73) can be extended in the longitudinal direction of the main roller (72). The left end of the first sub-roller (73) can be rotatably coupled to the left mount bracket (24). The right end of the first sub-roller (73) can be rotatably coupled to the right mount bracket (24).

[0109] For example, the first sub-roller (73) may include one pipe.

[0110] As another example, the first sub-roller (73) may include a plurality of pipes (731, 732). A bracket (733) may be positioned between the first pipe (731) and the second pipe (732) and may be fixed to the housing frame (71). The bracket (733) may be spaced apart from the shade film (45) wrapped around the first sub-roller (73). The first pipe (731) may extend from the bracket (733) toward the left mount bracket (24). The first pipe (731) may form the left end of the first sub-roller (73) and may be rotatably coupled to the left mount bracket (24). The right end of the first pipe (731) may be rotatably coupled to the bracket (733). The second pipe (732) may extend from the bracket (733) toward the right mount bracket (24). The second pipe (732) can form the right end of the first sub roller (73) and can be rotatably coupled to the right mount bracket (24). The left end of the second pipe (732) can be rotatably coupled to the bracket (733).

[0111] The first bearing (73B1) can be mounted on the left mount bracket (24) and can support the rotation of the left end of the first pipe (731). The second bearing (73B2) can be mounted on the left side of the bracket (733) and can support the rotation of the right end of the first pipe (731). The third bearing (73B3) can be mounted on the right mount bracket (24) and can support the rotation of the right end of the second pipe (732). The fourth bearing (73B4) can be mounted on the right side of the bracket (733) and can support the rotation of the left end of the second pipe (732).

[0112] Accordingly, the first sub-roller (73) having a plurality of pipes (731, 732) may have less bending deformation than the first sub-roller (73) having one pipe.

[0113] The second sub-roller (74) may be extended in the longitudinal direction of the first sub-roller (73). The left end of the second sub-roller (74) may be rotatably coupled to the left mount bracket (24). The right end of the second sub-roller (74) may be rotatably coupled to the right mount bracket (24). For example, the second sub-roller (74) may include one pipe. For another example, the second sub-roller (74) may include a plurality of pipes.

[0114] The first bearing (74B1) can be mounted on the left mount bracket (24) and can support the rotation of the left end of the second sub roller (74). The second bearing (74B2) can be mounted on the right mount bracket (24) and can support the rotation of the right end of the second sub roller (74).

[0115]

[0116] Referring to FIGS. 24 and 25, the second sub-roller (74) may be positioned between the main roller (72) and the first sub-roller (73).

[0117] In the forward / rear direction, the central axis (74C) of the second sub roller (74) may be located between the central axis (72C) of the main roller (72) and the central axis (73C) of the first sub roller (73). The central axis (74C) of the second sub roller (74) may be spaced forward by a predetermined distance (Da) from the central axis (72C) of the main roller (72). The central axis (74C) of the second sub roller (74) may be spaced rearward by a predetermined distance (Db) from the central axis (73C) of the first sub roller (73). For example, the distance (Db) may be 10.5 mm.

[0118] In the vertical direction, the central axis (74C) of the second sub roller (74) can be spaced downward from the central axis (72C) of the main roller (72) and the central axis (73C) of the first sub roller (73). The central axis (74C) of the second sub roller (74) can be spaced downward from the central axis (72C) of the main roller (72) by a predetermined distance (Dc). The central axis (74C) of the second sub roller (74) can be spaced downward from the central axis (73C) of the first sub roller (73) by a predetermined 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 sub roller (73) can be positioned at the same height, and the distances (D3, D4) can be the same. Alternatively, the central axes (72C, 73C) may be positioned at different heights.

[0119] The main roller (72) and the first and second sub rollers (73, 74) can be spaced apart from each other. The shade film (45) that is fully wrapped around the main roller (72) can be spaced apart from the first and second sub rollers (73, 74).

[0120] The diameter (D2) of the main roller (72) may be larger than the diameters (D3, D4) of the first and second sub rollers (73, 74). For example, the diameter (D2) may be 32 mm. The diameter (D4) of the second sub roller (74) may be the same as the diameter (D3) of the first sub roller (73). For example, the diameter (D4) may be 15 mm. Alternatively, the diameter (D4) of the second sub roller (74) may be larger than the diameter (D3) of the first sub roller (73).

[0121] A portion of the shade film (45) may span a portion of the outer surface of the second sub-roller (74), and a portion of the shade film (45) may span a portion of the outer surface of the first sub-roller (73). The second sub-roller (74) may change the traveling direction of the shade film (45) from the first direction (DR1) to the second direction (DR2). The first sub-roller (73) may change the traveling direction of the shade film (45) from the second direction (DR2) to the third direction (DR3).

[0122] The first direction (DR1) may be a direction in which the shade film (45) extends between the main roller (72) and the second sub roller (74). The first direction (DR1) may be a direction connecting the end point (P1) of the shade film (45) wrapped around the main roller (72) and the starting point (P2) of the shade film (45) in contact with the second sub roller (74).

[0123] The second direction (DR2) may be a direction in which the shade film (45) extends between the second sub-roller (74) and the first sub-roller (73). The second direction (DR2) may be a direction connecting the end point (P3) of the shade film (45) in contact with the second sub-roller (74) and the starting point (P4) of the shade film (45) in contact with the first sub-roller (73).

[0124] The third direction (DR3) may be a direction in which the shade film (45) extends between the first sub-roller (73) and the bar (40). The third direction (DR3) may be a direction connecting the end point (P5) of the shade film (45) in contact with the first sub-roller (73) and the start point (P6) of the shade film (45) in contact with the bar (40). The third direction (DR3) may be parallel to the display (10). The third direction (DR3) may be parallel to the vertical direction.

[0125] The angle (theta 10) at which the shade film (45) is switched from the first direction (DR1) to the second direction (DR2) by the second sub-roller (74) may be a value obtained by subtracting the angle (theta 11) between the first direction (DR1) and the second direction (DR2) from 180 degrees.

[0126] The angle (theta 20) at which the shading film (45) is switched from the second direction (DR2) to the third direction (DR3) by the first sub-roller (73) may be a value obtained by subtracting the angle (theta 21) between the second direction (DR2) and the third direction (DR3) from 180 degrees. For example, the angle (theta 21) may be about 143 degrees. The angle (theta 20) may be smaller than the angle (theta 10). Considering that a greater force is applied to the first sub-roller (73) than to the second sub-roller (74), the diameter of the second sub-roller (74) may be designed to be larger than the diameter of the first sub-roller (73), thereby minimizing deformation of the second sub-roller (74). Also, considering that a greater force is applied to the main roller (72) than to the first and second sub rollers (73, 74), the diameter of the main roller (72) can be designed to be larger than the diameters of the first and second sub rollers (73, 74), thereby minimizing deformation of the main roller (72).

[0127] The angle (theta 20) may be smaller than the angle (theta a, see FIG. 20). That is, the second sub-roller (74) may reduce the angle that is turned by the first sub-roller (73). In addition, the tension of the main roller (72) may increase due to the second sub-roller (74), and as a result, the tension applied to the shading film (45) may increase.

[0128] Accordingly, due to the repulsive force of the shading film (45) itself, the phenomenon in which the portion (45'') of the shading film (45) between the first sub-roller (73) and the bar (40) becomes convex toward the display (10) can be minimized (i.e., C'>C''). The change in the gap (G) between the shading film (45) and the display (10) can be minimized. For example, the gap (G) can be 4 mm, and the portion (45'') of the shading film (45) can be deformed to 2 mm or less toward the display (10). As the contact or adhesion between the shading film (45) and the display (10) is minimized, the bar (40) can be smoothly raised or lowered. In addition, by minimizing the phenomenon of the shading film (45) becoming convex, the gap (G) between the shading film (45) and the display (10) can be minimized, and as a result, not only can the product thickness of the display device be reduced, but also the image quality of the display (10) can be improved.

[0129]

[0130] Referring to FIGS. 1 to 25, a display device (1) comprises: a display panel (11) that displays an image and has light-transmitting properties; a main roller (72) that extends along one side of the display panel (11); a light-shielding film (45) that has one end fixed to the main roller (72) and is wound around or unwound from the main roller (72); a bar (40) that extends in the longitudinal direction of the main roller (72), has the other end of the light-shielding film (45) fixed, and moves the light-shielding film (45) to cover or open the rear of the display panel (11); a first sub-roller (73) that extends in the longitudinal direction of the main roller (72) and catches a portion of the light-shielding film (45) located between the main roller (72) and the bar (40); And, it may include a second sub roller (74) that extends in the longitudinal direction of the main roller (72) and is caught by a portion of the light shield (45) located between the main roller (72) and the first sub roller (73).

[0131] The second sub-roller (74) can change the direction of movement of the light shield (45) from the first direction (DR1) to the second direction (DR2), and the first sub-roller (73) can change the direction of movement of the light shield (45) from the second direction (DR2) to the third direction (DR3), and the third direction (DR3) can be parallel to the display panel (11).

[0132] The angle (theta 20) at which the second direction (DR2) is switched to the third direction (DR3) may be smaller than the angle (theta 10) at which the first direction (DR1) is switched to the second direction (DR2).

[0133] The second sub-roller (74) can bend the shade film (45) between the main roller (72) and the first sub-roller (73).

[0134] The bar (40) can move in a first movement direction and move away from the first sub-roller (73), or move in a second movement direction opposite to the first movement direction and move closer to the first sub-roller (73), and the central axis (74C) of the second sub-roller (74) can be located between the central axis (72C) of the main roller (72) and the central axis (73C) of the first sub-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 sub-roller (74) in the second movement direction.

[0135] The central axis (73C) of the first sub roller (73) may be positioned at the same height as the central axis (72C) of the main roller (72).

[0136] The diameter (D2) of the main roller (72) may be larger than the diameter (D3) of the first sub roller (73) and the diameter (D4) of the second sub roller (74), and the diameter (D4) of the second sub roller (74) may be equal to or larger than the diameter (D3) of the first sub roller (73).

[0137] The shade film (45) that is fully wrapped around the main roller (72) can be separated from the second sub roller (74).

[0138] The display device (1) may further include: a housing frame (71) positioned at the rear of the display panel (11) adjacent to the first sub-roller (73), and the light shield (45) may be movable between the display panel (11) and the housing frame (71), and the first sub-roller (73) may include: a first pipe (731) forming one end of the first sub-roller (73); a second pipe (732) forming the other end of the first sub-roller (73); and a bracket (733) fixed to the housing frame (71) between the first pipe (731) and the second pipe (732), and rotatably coupled to the first pipe (731) and the second pipe (732).

[0139] The above display device (1) may further include a mount bracket (24) to which one end of the main roller (72) is rotatably coupled, and one end of the first sub roller (73) and one end of the second sub roller (74) may be rotatably coupled to the mount bracket (24).

[0140] The display device (1) may further include a side frame (20) extending along one side of the display panel (11) and covering a portion of the front of the display panel (11), wherein the side frame (20) may face the first sub-roller (73) with respect to the display panel (11), and a central axis (73C) of the first sub-roller (73) may be aligned with one side of the side frame (20) facing the center of the display panel (11).

[0141] The display device (1) may further include a housing frame (71) adjacent to one side of the display panel (11) and facing the rear surface of the display panel (11), the light shielding film (45) may be movable between the display panel (11) and the housing frame (71), and the bar (40) may overlap one side of the housing frame (71) in the direction of movement of the bar (40).

[0142] The display device (1) may further include: a side frame (20) extending along the longitudinal direction of the display panel (11) and to which the display panel (11) is coupled; and a belt (32) coupled to the side frame (20) so as to be movable in the longitudinal direction of the side frame (20), and one end of the bar (40) may be fixed to the belt (32).

[0143] The above display device (1) may further include: a motor (61); and a gearbox (62) that transmits the rotational force of the motor (61) to the belt (32).

[0144]

[0145] Any or all of the embodiments of the present disclosure described above are not mutually exclusive or distinct. Any or all of the embodiments of the present disclosure described above may have their respective components or functions combined or used together.

[0146] For example, it means that a configuration A described in a particular embodiment and / or drawing can be combined with a configuration B described in another embodiment and / or drawing. That is, even if a combination between configurations is not directly described, it means that a combination is possible, except in cases where a combination is described as impossible.

[0147] The above detailed description should not be construed as limiting in any respect and should be considered illustrative only. The scope of the present invention should be determined by a reasonable interpretation of the appended claims, and all modifications within the equivalent scope of the present invention are intended to be included within the scope of the present invention.

Claims

1. A display panel that displays an image and has light transmission properties; A main roller extending along one side of the above display panel; A shading film fixed to the main roller and wound around or unwound from the main roller; A bar extending in the longitudinal direction of the main roller, the other end of the shade is fixed, and the shade is moved to cover or open the rear of the display panel; A first sub-roller extending in the longitudinal direction of the main roller and on which a portion of the shade film positioned between the main roller and the bar is caught; and A display device including a second sub-roller extending in the longitudinal direction of the main roller and having a portion of the light shield positioned between the main roller and the first sub-roller caught thereon.

2. In paragraph 1, The above second sub roller, The direction of movement of the above shading film is changed from the first direction to the second direction, The above first sub roller, The direction of movement of the above-mentioned shading film is changed from the second direction to the third direction, The third direction above is, A display device parallel to the above display panel.

3. In paragraph 2, The angle at which the transition from the second direction to the third direction is A display device having an angle smaller than the angle at which it switches from the first direction to the second direction.

4. In paragraph 1, The above second sub roller, A display device that bends the light shield between the main roller and the first sub roller.

5. In paragraph 4, The above bar is, Moving in a first movement direction and moving away from the first sub-roller, or moving in a second movement direction opposite to the first movement direction and moving closer to the first sub-roller, The central axis of the second sub-roller is A display device positioned between the central axis of the main roller and the central axis of the first sub roller, and spaced apart in the second movement direction from the central axis of the main roller and the central axis of the second sub roller.

6. In paragraph 5, The central axis of the first sub-roller is, A display device positioned at the same height as the central axis of the main roller.

7. In paragraph 4, The diameter of the above main roller is, The diameter of the first sub-roller is larger than the diameter of the second sub-roller, The diameter of the second sub-roller is, A display device having a diameter equal to or greater than the diameter of the first sub-roller.

8. In paragraph 7, The shading film that is fully wrapped around the above main roller is A display device spaced apart from the second sub-roller.

9. In paragraph 1, Further comprising a housing frame positioned at the rear of the display panel adjacent to the first sub-roller, The above shade film is, It is movable between the above display panel and the above housing frame, The above first sub-roller: A first pipe forming one end of the first sub-roller; A second pipe forming the other end of the first sub-roller; and, A display device comprising a bracket fixed to the housing frame between the first pipe and the second pipe, the first pipe and the second pipe being rotatably coupled.

10. In paragraph 1, Further comprising a mount bracket to which one end of the above main roller is rotatably coupled, One end of the first sub-roller and one end of the second sub-roller, A display device rotatably coupled to the above mount bracket.

11. In paragraph 1, Further comprising a side frame extending along the one side of the display panel and covering a portion of the front surface of the display panel; The above side frame, Facing the first sub-roller with respect to the above display panel, The central axis of the first sub-roller is, A display device aligned with one side of the side frame toward the center of the display panel.

12. In paragraph 11, Further comprising a housing frame adjacent to the one side of the display panel and facing the rear side of the display panel, The above shade film is, It is movable between the above display panel and the above housing frame, The above bar is, A display device that overlaps one side of the housing frame in the direction of movement of the above bar.

13. In paragraph 1, A side frame extending along the edge of the display panel and to which the display panel is coupled; and Further comprising a belt coupled to the side frame so as to be movable in the longitudinal direction of the side frame, One end of the above bar is, A display device fixed to the above belt.

14. In paragraph 13, motor; and, A display device further comprising a gearbox that transmits the rotational power of the motor to the belt.

Images