Display device

Abstract

Disclosed is a display device. The display device may comprise: a display panel which displays an image and has light transmittance; a transparent panel facing the display panel; a side frame which extends elongated along a side edge of the display panel and is coupled to the transparent panel; a belt which is embedded in the side frame and moves along the longitudinal direction of the side frame; a bar which extends elongated in a direction crossing the side frame and has one end fixed to the belt; a roller which is adjacent to the lower edge connected to the side edge of the display panel, extends elongated along the lower edge of the display panel, and is rotatable; a light-shielding film which has one end fixed to the bar and the other end coupled to the roller and becomes wound around or unwound from the roller when the bar moves; an upper pulley which is located at the upper side of the side frame and around which the inner surface of the belt is wound; and a driving pulley which is adjacent to the lower side of the side frame, faces the light-shielding frame, and rotates about an axis in the thickness direction of the light-shielding film, and around which the inner surface of the belt is wound.

Description

Display device

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

[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), 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.

[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 mechanism for easily adjusting the tension of the belt that moves the shading screen.

[0010] Another purpose may be to improve the efficiency of the power transmission system that moves the shading screen.

[0011] Another objective may be to improve the noise and vibration of the power transmission system that moves the shading screen.

[0012] Another purpose may be to improve the ease of assembly of the power transmission system that moves the shading screen.

[0013] According to one aspect of the present disclosure for achieving the above or other purposes, a display device comprises: a display panel that displays an image and is transparent; a transparent panel facing the display panel; a side frame that extends along the side edge of the display panel and is coupled to the transparent panel; a belt embedded in the side frame and moving along the longitudinal direction of the side frame; a bar that extends in a direction intersecting the side frame and has one end fixed to the belt; a rotatable roller that is adjacent to the lower edge connected to the side edge of the display panel and extends along the lower edge of the display panel; a light shield that is fixed at one end to the bar and has the other end coupled to the roller, and is wound or unwound from the roller when the bar moves; an upper pulley located on the upper side of the side frame and on which the inner surface of the belt is wound. And, the device may include a pulley assembly comprising a drive pulley that is adjacent to the lower side of the side frame, faces the sunshade, rotates about the thickness direction of the sunshade, and is wound around the inner surface of the belt, wherein the pulley assembly comprises: a pulley block on which the drive pulley is rotatably mounted; a sub-pulley mounted on the pulley block adjacent to the drive pulley and supporting the outer surface of the belt; and a tension pulley mounted on the pulley block between the drive pulley and the sub-pulley and pushing the outer surface of the belt.

[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 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-shielding film are combined can be provided.

[0018] According to at least one of the embodiments of the present disclosure, a mechanism for easily adjusting the tension of a belt that moves a sunshade can be provided.

[0019] According to at least one of the embodiments of the present disclosure, the efficiency of the power transmission system for moving the shading film can be improved.

[0020] According to at least one of the embodiments of the present disclosure, the noise and vibration of the power transmission system that moves the shading screen can be improved.

[0021] According to at least one of the embodiments of the present disclosure, the ease of assembly of a power transmission system for moving a shading film can be improved.

[0022] 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.

[0023] FIGS. 1 to 32 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. Identical or similar components regardless of drawing symbols are given the same reference number, and redundant descriptions thereof will be omitted.

[0025] 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.

[0026] 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.

[0027] 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.

[0028] 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.

[0029] A singular expression includes a plural expression unless the context clearly indicates otherwise.

[0030] 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.

[0031] 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.

[0032]

[0033] 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).

[0034] 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).

[0035] 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).

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

[0037] 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).

[0038] 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]

[0040] 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.

[0041] Accordingly, a display panel (11, see FIG. 7) having multiple pixels can not only display an image but also allow light to pass through. 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, 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.

[0044] Accordingly, a display panel (11, see FIG. 7) having multiple pixels can not only display an image but also allow light to pass through. 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 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 (LS1, LS2, see FIG. 1) 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 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 motors (61). Each of the multiple gearboxes (62) may be connected to each of the multiple motors (61). A pair of gearboxes (62) may transmit the dual driving force provided by a pair of motors (61). The motors (61) and / or gearboxes (62) may be coupled to or fixed to the rear of the housing frame (71). The motors (61) and / or gearboxes (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]

[0049] 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).

[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 to 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 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]

[0053] 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 (R), green (G), or blue (B) according to a control signal.

[0054] 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).

[0055] 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).

[0056] 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).

[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). 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).

[0058] The display panel (11), adhesive film (12), and transparent panel (13) can be called a display (10).

[0059]

[0060] 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.

[0061] 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).

[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 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).

[0065] 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]

[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 to 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 the inner frame (161, 162). The horizontal fixer (161) may include a plate (161a) and a wall (161b). The plate (161a) extends horizontally and can 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) 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).

[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 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).

[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) 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).

[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 the outer surface of the wheel (17a). A fixing washer (17c) may be attached 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]

[0074] 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).

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

[0076] The motor bracket (60) may be coupled to the vertical fixer (162) or to the housing frame (71). The motor bracket (60) may also be formed integrally with the housing frame (71). The motor (61) and / or gearbox (62) may be coupled to the motor 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).

[0077] 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]

[0079] Referring to FIG. 14, 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 around 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).

[0080]

[0081] Referring to FIGS. 15 and 16, the housing frame (71) may include a front part (712), a rear part (711), an inner rib (714), a bar supporter (715), a top part (716), and a roller cover (713). The front part (712) may face the rear part (711). The rear part (711) may face the front part (712). The inner rib (714) may connect the front part (712) and the rear part (711) between the front part (712) and the rear part (711). A gap or space may be formed between the front part (712) and the rear part (711) by the inner rib (714).

[0082] The roller cover (713) may be located at the bottom of the front part (712) and the rear part (711). The roller cover (713) may connect the front part (712) and the rear part (711). The roller cover (713) may be part of a cylinder shape. The center of curvature of the roller cover (713) may be opposite to the front part (712) and the rear part (711) with respect to the roller cover (713).

[0083] The bar supporter (715) may include a back supporter (715a), a bottom supporter (715b), and a front supporter (715c). For example, the bar supporter (715) may be L-shaped overall. The front supporter (715c) may face the back supporter (715a) with respect to the bottom supporter (715b). The height of the back supporter (715a) may be greater than the height of the front supporter (715c).

[0084] The top part (716) can be connected to the back supporter (715a). The top part (716) can be opposed to the roller cover (713) with respect to the front part (712) and / or the rear part (711).

[0085] The mount part (712a) may be defined by the front part (712) exposed as the rear part (711) is cut. The rear side of the front part (712) may be exposed as the rear part (711) and / or the inner rib (714) is cut. The mount part (712a) may include a plurality of cut-out portions (712b, 712c, 712d). The first cut-out portion (712b) may be formed by cutting the side of the front part (712) to form a bay. The second cut-out portion (712c) and / or the third cut-out portion (712d) may be formed by punching the front part (712).

[0086] Accordingly, the torsional and / or bending stiffness of the housing frame (71) can be increased.

[0087]

[0088] Referring to FIGS. 17 and 18, the sub-roller (73) may be located below the roller cover (713). The roller cover (713) may cover the upper arc of the sub-roller (73). The roller cover (713) may be spaced apart from the sub-roller (73). The main roller (72) may be located at the rear of the housing frame (71) adjacent to the sub-roller (73). The sunshade (45) may be wound around the main roller (72) and supported by the sub-roller (73). As the sunshade (45) is unwound from the main roller (72), it may wrap around the sub-roller (73) and cover the front part (712) of the housing frame (71). The sunshade (45) may be attached to or fixed to the bar (40). The bar (40) may be located on the bar supporter (715). When the bar (40) is positioned on the bar supporter (715), the bar (40) can be positioned at the bottom dead center.

[0089] The display (10) may face the housing frame (71) with respect to the light-blocking screen (45). The display (10) may face the front part (712) of the light-blocking screen (45) and / or the housing frame (71). The bar (40) may be located adjacent to the rear of the display (10).

[0090] The main roller (72) and / or sub-roller (73) may be positioned on the lower frame (18). The main roller (72) and / or sub-roller (73) may be spaced apart from the lower frame (18) and / or PCB cover (19). The vertical portion (18a) of the lower frame (18) may cover the front of the sub-roller (73). The light-blocking film (45) that wraps around the sub-roller (73) while unwinding from the main roller (72) may be covered by the vertical portion (18a) of the lower frame (18).

[0091]

[0092] Referring to FIGS. 19 and 20, the pulley block (80) may have a square plate shape overall. The pulley block (80) may include a drive pulley mount (81), a sub-pulley mount (84), and a tension pulley mount (83). The drive pulley mount (81) may be formed on the lower part of the pulley block (80). The sub-pulley mount (84) may be formed on the upper part of the pulley block (80). The tension pulley mount (83) may be located between the drive pulley mount (81) and the sub-pulley mount (84).

[0093] The drive pulley mount (81) may be formed by indenting one side of the pulley block (80) inwardly. The drive pulley mount (81) may be a cylindrical indentation. A drive shaft hole (h) may be formed in the drive pulley mount (81). The drive shaft hole (h) may be formed by penetrating the pulley block (80) from the drive pulley mount (81).

[0094] A sub-pulley mount (84) may be formed on the upper part of the pulley block (80). A sub-axial hole (h) may be formed in the sub-pulley mount (84). The sub-axial hole (h) may be formed by penetrating the pulley block (80) in the thickness direction of the pulley block (80).

[0095] The tension pulley mount (83) may form a step in which a portion of the pulley block (80) is lowered inward. The tension pulley mount (83) may include a holder guide (85) and a pulley slot (86). The holder guide (85) may be cut out and opened from the pulley block (80) in the tension pulley mount (83). The holder guide (85) may form an opening in the left-right direction of the pulley block (80). The pulley slot (86) may be adjacent to the holder guide (85). The pulley slot (86) may be an elongated hole extending in the left-right direction.

[0096] A drive bearing (81b) can be inserted into a drive pulley mount (81).

[0097]

[0098] Referring to FIGS. 21 and 22, the drive pulley (31) may be coupled to a drive bearing (81b, see FIG. 20). The drive pulley (31) may rotate on a drive pulley mount (81, see FIG. 19). The drive pulley (31) may have a gear on its outer surface.

[0099] The sub-pulley (33) can be coupled to the sub-pulley mount (84). The pulley shaft (33a) of the sub-pulley (33) can be inserted into the sub-axis hole (h, see FIG. 20) of the sub-pulley mount (84). The pulley (33b) of the sub-pulley (33) can rotate on the sub-pulley mount (84) around the pulley shaft (33a).

[0100]

[0101] Referring to FIG. 23 together with FIG. 22, the tension pulley (34) can be coupled to the tension pulley mount (83). The tension pulley (34) may include a pulley (34b), a pulley shaft (34a), a pulley holder (34c), an elastic member (34e), and a fixing bracket (34f).

[0102] The pulley (34b) can be aligned with the pulley slot (86, see FIG. 21). The pulley shaft (34a) can be inserted into the pulley slot (86). The pulley (34b) and the pulley shaft (34a) can move within the pulley slot (86). The pulley holder (34c) can be coupled by the pulley (34b) and the pulley shaft (34a). The pulley (34b) can rotate within the pulley holder (34c). For example, the pulley holder (34c) can be a U-shaped bracket. The pulley holder (34c) can be positioned in the holder guide (85). The pulley holder (34c) can move within the holder guide (85). The pulley shaft (34a) can be inserted into both sides of the pulley holder (34c). The holder shaft (34d) extends along the length of the holder guide (85) and can be fixed to the pulley holder (34c).

[0103] A fixed bracket (34f) is adjacent to a holder guide (85) and can be fixed to a pulley block (80). The fixed bracket (34f) can cover the side of the pulley block (80) that is open by the holder guide (85). A holder shaft (34d) can be inserted into an elastic member (34e). One end of the elastic member (34e) is supported by the fixed bracket (34f), and the other end of the elastic member (34e) can be supported by a pulley holder (34c).

[0104] The pulley (34b) and pulley holder (34c) of the tension pulley (34) can move in the direction of the holder axis (34d) in the holder guide (85). The elastic member (34e) can provide elastic force to the pulley holder (34c) and pulley (34b) from the fixed bracket (34f).

[0105]

[0106] Referring to FIGS. 24 and 25, both ends of the belt (32) may be connected to each other by a belt fixer (32a). The belt fixer (32a) may secure the belt (32) to one end of a bar (40, see FIG. 18). The belt (32) may be wound around a drive pulley (31). For example, the belt (32) may be a timing belt. The inner gear of the belt (32) may mesh with the gear on the outer surface of the drive pulley (31). The outer surface of the belt (32) may be a smooth surface. A sub-pulley (33) may support the outer surface of the belt (32). The rotation axis (33a) of the sub-pulley (33) may be aligned with the rotation axis (31a) of the drive pulley (31). For example, the line connecting the center of rotation of the surf pulley (33) and the center of rotation of the drive pulley (31) may be parallel to the vertical direction of the belt (32). The diameter of the drive pulley (31) may be larger than the diameter of the pulley (33b) of the sub pulley (33). Between the sub pulley (33) and the drive pulley (31), the belt (32) may form an incline with respect to the opposing belt (32).

[0107] The pulley (34b) of the tension pulley (34) can be positioned between the sub-pulley (33) and the drive pulley (31). The pulley (34b) of the tension pulley (34) can support the outer surface of the belt (32). The pulley (34b) of the tension pulley (34) can push the outer surface of the belt (32). The tension of the belt (32) can be automatically adjusted by the force with which the pulley (34b) of the tension pulley (34) pushes the outer surface of the belt (32). Accordingly, the tension of the belt (32) can be maintained at a constant level.

[0108]

[0109] Referring to FIG. 26, the pulley block (80) can be coupled to the rear of the housing frame (71). The pulley block (80) can be fixed to the rear of the housing frame (71). The pulley block (80) can be fixed to the mount part (712a, see FIG. 16) of the housing frame (71).

[0110] The rotation axis (31a) of the drive pulley (31, see FIG. 25) may be exposed at the rear of the pulley block (80) fixed to the mount part (712a, see FIG. 16) of the housing frame (71). An E-ring (e) may be coupled to the rotation axis (31a) of the drive pulley (31). A power hole (h) may be formed on the rotation axis (31a) of the drive pulley (31).

[0111]

[0112] Referring to FIGS. 27 through 29, the gearbox (50) is located adjacent to the motor (61) and can be coupled with the motor (61). The motor bracket (60) can be fixed to the gearbox (50). The motor (61) is located on the motor bracket (60) and can be fixed to the motor bracket (60). The motor (61) can be connected to the gearbox (50).

[0113] The gear box (50) may be in the shape of a rectangular box with one side open. A box cover (50a) may cover the opening (56) on one side of the gear box (50). The box cover (50a) may be fixed to the opening (56) of the gear box (50).

[0114] The gear box (50) may include a first side wall (51), a second side wall (52), a third side wall (53), and a fourth side wall (54). The first side wall (51) may face the second side wall (52). The third side wall (53) may connect one side of the first side wall (51) and one side of the second side wall (52). The fourth side wall (54) may connect the other side of the first side wall (51) and the other side of the second side wall (52). The third side wall (53) may face the fourth side wall (54). The bottom (55) may connect the first side wall (51), the second side wall (52), the third side wall (53), and the fourth side wall (54). The bottom (55) may face the box cover (50a).

[0115] A motor hole (51a) may be formed in the first side wall (51). A motor gear groove (52a) may be formed in the second side wall (52). The diameter of the motor hole (51a) may be larger than the diameter of the motor gear groove (52a). The center of the motor gear groove (52a) may be aligned with the center of the motor hole (51a). A first line connecting the center of the motor hole (51a) and the center of the motor gear groove (52a) may be parallel to the bottom (55).

[0116] The power groove (54a) may be formed on the inner surface of the fourth side wall (54). The power hole (53a) may be formed on the third side wall (53). The center of the power groove (54a) may be aligned with the center of the power hole (53a). A second line connecting the center of the power groove (54a) and the center of the power hole (53a) may be parallel to the bottom (55). The second line may intersect the first line. For example, the first line may be perpendicular to the second line.

[0117]

[0118] Referring to FIGS. 30 and 31, a motor bearing (61b) is inserted into a motor hole (51a, see FIG. 29), and a motor shaft (61a) can be inserted into the motor bearing (61b). The motor shaft (61a) can penetrate the first side wall (51) of the gearbox (50). The end of the motor shaft (61a) can be located between the first side wall (51) and the second side wall (52) of the gearbox (50).

[0119] The end of the motor shaft (61a) can be inserted into the worm gear (67). The worm gear (67) can rotate together with the motor shaft (61a). The worm gear (67) may include a first gear shaft (67b), a second gear shaft (67c), and a helical portion (67a). The first gear shaft (67b) may be located opposite the second gear shaft (67c) with respect to the helical portion (67a).

[0120] A fixed rim (61c) can be inserted into a motor hole (51a). A fixed rim (61c) can be fixed to a motor bracket (60). A fixed rim (61c) can connect the motor bracket (60) and the motor hole (51a). A motor bearing (61b) can be inserted into a fixed rim (61c). A motor shaft (61a) can be inserted into a motor bearing (61b). An end of the motor shaft (61a) can be inserted into a first gear shaft (67b). A second gear shaft (67c) can be inserted into a motor gear groove (52a) of a second side wall (52). A gear bearing (61d) can be inserted between the motor gear groove (52a) and the second gear shaft (67c). Accordingly, the worm gear (67) can rotate inside the gearbox (50) without noise and / or vibration, and the durability of the connection between the worm gear (67) and the gearbox (50) can be improved. Even with repeated rotation of the worm gear (67), the misalignment of the rotation axis of the worm gear (67) can be improved.

[0121]

[0122] Referring to FIG. 32 together with FIG. 31, the worm wheel gear (68) may mesh with the worm gear (67). The worm wheel gear (68) may include a first shaft portion (68b), a second shaft portion (68c), and a wheel gear portion (68a). The first shaft portion (68b) may be located opposite the second shaft portion (68c) to the wheel gear portion (68a). The worm wheel gear (68) may include a power shaft (64). The power shaft (64) may pass through the first shaft portion (68b), the second shaft portion (68c), and the wheel gear portion (68a). The power shaft (64) may rotate together with the wheel gear portion (68a).

[0123] The groove bearing (64c) can be inserted into the power groove (54a). The hole bearing (64b) can be inserted into the power hole (53a). One end of the power shaft (64) is inserted into the groove bearing (64c), and the power shaft (64) can pass through the hole bearing (64b). The other end (64a) of the power shaft (64) can be located outside the gearbox (50). The other end (64a) of the power shaft (64) can be connected to the drive pulley (31, see FIG. 24) to rotate the drive pulley (31, see FIG. 24). The other end (64a) of the power shaft (64) can be inserted into or fixed in the hole (h, see FIG. 26) of the pulley shaft (31a, see FIG. 26).

[0124] The power hole (53a) may be provided with a stopper (53s) formed on the inner side of the third side wall (53). The stopper (53s) may support the hole bearing (64b). The bearing cover (50b) may be attached to or fixed to the outer side of the third side wall (53). The bearing cover (50b) may be positioned opposite the stopper (53s) with respect to the hole bearing (64b). The bearing cover (50b) may firmly attach the hole bearing (64b) to the power hole (53a).

[0125] Accordingly, noise and / or vibration that may occur as the power shaft (64) rotates in the gearbox (50) can be improved. Additionally, the durability can be improved as the power shaft (64) is firmly coupled to the gearbox (50). Even with repeated rotation of the worm wheel gear (68), the misalignment of the power shaft (64), which is the rotation axis of the worm wheel gear (68), can be improved.

[0126]

[0127] Referring to FIGS. 1 to 32, the display device comprises: a display panel that displays an image and is transparent; a transparent panel facing the display panel; a side frame that extends along the side edge of the display panel and is coupled to the transparent panel; a belt embedded in the side frame and moving along the longitudinal direction of the side frame; a bar that extends in a direction intersecting the side frame and has one end fixed to the belt; a rotatable roller that is adjacent to the lower edge connected to the side edge of the display panel, extends along the lower edge of the display panel, and has one end fixed to the bar and the other end coupled to the roller, so that when the bar moves, the light shield is wound or unwound from the roller; and an upper pulley located on the upper side of the side frame and on which the inner surface of the belt is wound. And, the device may include a pulley assembly comprising a drive pulley that is adjacent to the lower side of the side frame, faces the sunshade, rotates about the thickness direction of the sunshade, and is wound around the inner surface of the belt, wherein the pulley assembly comprises: a pulley block on which the drive pulley is rotatably mounted; a sub-pulley mounted on the pulley block adjacent to the drive pulley and supporting the outer surface of the belt; and a tension pulley mounted on the pulley block between the drive pulley and the sub-pulley and pushing the outer surface of the belt.

[0128] The display device further includes a housing frame to which the pulley assembly is fixed, and the housing frame includes: a front part facing the light shield; a rear part facing the front part and spaced apart from the front part; and an inner rib connecting the front part and the rear part, and the pulley block may be fixed to either the front part or the rear part.

[0129] The pulley block comprises: a drive pulley mount forming a lower portion, wherein one side of the pulley block is recessed; a sub-pulley mount forming an upper portion, wherein the sub-pulley is rotatably coupled thereto; and a tension pulley mount positioned between the drive pulley mount and the sub-pulley mount, wherein the tension pulley mount comprises: a holder guide formed by being recessed inward from the side of the pulley block in the left-right direction of the pulley block; and a pulley slot adjacent to the holder guide and formed penetrating the pulley block.

[0130] The pulley assembly includes a drive bearing inserted into the drive pulley mount, and the drive pulley can be coupled to the drive bearing.

[0131] The tension pulley may include: a pulley holder located in the holder guide and moving in the holder guide; a pulley shaft inserted into the pulley slot and connected to the pulley holder; and a pulley connected to the pulley shaft and in contact with the outer surface of the belt.

[0132] The tension pulley may further include: a fixed bracket fixed to the side of the pulley block on which the holder guide is formed; and an elastic member positioned between the fixed bracket and the pulley holder, with one end supported by the fixed bracket and the other end supported by the pulley holder.

[0133] The rotation center of the above-mentioned drive pulley is aligned vertically with respect to the rotation center of the above-mentioned sub-pulley, and the diameter of the above-mentioned drive pulley may be larger than the diameter of the above-mentioned sub-pulley.

[0134] The above display device may include: a motor that provides rotational power; and a gearbox that transmits the rotational power provided from the motor to the drive pulley.

[0135] The above gear box comprises: a first side wall; a second side wall facing the first side wall; a third side wall connecting the first side wall and the second side wall; and a fourth side wall facing the third side wall and connecting the first side wall and the second side wall, wherein the first side wall may have a motor hole formed penetrating the first side wall, the second side wall may have a motor gear groove formed on the inner surface of the second side wall, the third side wall may have a power hole formed penetrating the third side wall, and the fourth side wall may have a power groove formed on the inner surface of the fourth side wall.

[0136] The above gear box includes: a motor bearing inserted into the motor hole; a gear bearing inserted into the motor gear groove; and a worm gear located inside the gear box, wherein the rotational shaft of the motor is inserted into the motor bearing, the end thereof is located inside the gear box, and the worm gear has the rotational shaft of the motor inserted into one side and the other side coupled to the gear bearing.

[0137] The above gearbox may include: a hole bearing inserted into the power hole; a groove bearing inserted into the power groove; a power shaft inserted into the hole bearing and the groove bearing; and a worm wheel gear that meshes with the worm gear and into which the power shaft is inserted.

[0138] The above power shaft may be orthogonal to the rotation axis of the motor.

[0139] The above gearbox includes: a bottom connected to the first side wall, the second side wall, the third side wall, and the fourth side wall, and the rotation shaft of the motor and the power shaft may be parallel to the bottom.

[0140] The above gearbox may include: a box cover facing the bottom and covering the opening formed by the side walls.

[0141] It may include a bearing cover into which the power shaft is inserted, which covers the hole bearing, and which is fixed to the third side wall.

[0142]

[0143] 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.

[0144] 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.

[0145] 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

1. A display panel that displays an image and is transparent; A transparent panel facing the above-mentioned display panel; A side frame that extends along the side of the display panel and is coupled to the transparent panel; A belt embedded in the side frame and moving along the longitudinal direction of the side frame; It is extended in a direction intersecting the above side frame, and one end is fixed to the above belt; A rotatable roller adjacent to the lower edge connected to the side edge of the display panel, extending long along the lower edge of the display panel; One end is fixed to the above bar and the other end is connected to the above roller, so that when the above bar moves, the sunshade is wound or unwound from the roller; An upper pulley located on the upper side of the above side frame, on which the inner surface of the belt is wound; and, A pulley assembly comprising a drive pulley adjacent to the lower side of the side frame, facing the shading screen, rotating about the thickness direction of the shading screen as an axis, and having the inner surface of the belt wound thereon, The above pulley assembly is: A pulley block on which the above-mentioned drive pulley is rotatably mounted; A sub-pulley mounted on the pulley block adjacent to the drive pulley and supporting the outer surface of the belt; and, A display device comprising a tension pulley mounted on the pulley block between the driving pulley and the sub-pulley, and pushing the outer surface of the belt.

2. In Paragraph 1, The above display device is: The above-mentioned pulley assembly further includes a housing frame to which it is fixed, and The above housing frame is: Front part facing the above-mentioned sunshade; A rear part facing the front part and spaced apart from the front part; and, It includes an inner rib connecting the front part and the rear part, and The above pulley block is, A display device fixed to either the front part or the rear part.

3. In Paragraph 1, The above pulley block is: A drive pulley mount forming a lower portion, wherein one side of the pulley block is recessed; A sub-pulley mount forming an upper portion and to which the sub-pulley is rotatably coupled; and, It includes a tension pulley mount located between the drive pulley mount and the sub-pulley mount, and The above tension pulley mount is: A holder guide formed by being recessed inward from the side of the pulley block in the left-right direction of the pulley block; and, A display device comprising a pulley slot formed adjacent to the holder guide and penetrating the pulley block.

4. In Paragraph 3, The above pulley assembly is: It includes a drive bearing inserted into the drive pulley mount, and The above drive pulley, A display device coupled to the above-mentioned drive bearing.

5. In Paragraph 4, The above tension pulley is: A pulley holder positioned in the above holder guide and moving in the above holder guide; A pulley shaft inserted into the pulley slot and connected to the pulley holder; and, A display device comprising a pulley connected to the pulley shaft and in contact with the outer surface of the belt.

6. In Paragraph 5, The above tension pulley is: A fixing bracket fixed to the side of the pulley block on which the holder guide is formed; and, A display device further comprising an elastic member positioned between the fixed bracket and the pulley holder, wherein one end is supported by the fixed bracket and the other end is supported by the pulley holder.

7. In Paragraph 3, The rotation center of the above drive pulley is, Aligned in the vertical direction with respect to the rotation center of the above sub-pulley, The diameter of the above drive pulley is, A display device with a diameter larger than that of the above sub-pulley.

8. In Paragraph 1, The above display device is: A motor that provides rotational power; and, A display device comprising a gearbox that transmits rotational power provided from the motor to the drive pulley.

9. In Paragraph 8, The above gearbox is: First side wall; A second side wall facing the first side wall; A third side wall connecting the first side wall and the second side wall; and, It includes a fourth side wall facing the third side wall and connecting the first side wall and the second side wall, The above-mentioned first side wall is, A motor hole penetrating the first side wall is formed, and The above second side wall is, A motor gear groove is formed on the inner surface of the second side wall, and The above third side wall is, A power hole penetrating the third side wall is formed, and The above-mentioned fourth side wall is, A display device having a power groove formed on the inner surface of the fourth side wall.

10. In Paragraph 9, The above gearbox is: A motor bearing inserted into the above motor hole; A gear bearing inserted into the above motor gear groove; and, It includes a worm gear located inside the above gearbox, and The rotating shaft of the above motor is, Inserted into the motor bearing, with the end located inside the gearbox, The above worm gear is, A display device in which the rotating shaft of the motor is inserted on one side and the other side is coupled to the gear bearing.

11. In Paragraph 10, The above gearbox is: A hole bearing inserted into the above power hole; A groove bearing inserted into the above power groove; A power shaft inserted into the above-mentioned hole bearing and the above-mentioned groove bearing; and, A display device comprising a worm wheel gear that meshes with the above worm gear and into which the above power shaft is inserted.

12. In Paragraph 11, The above power shaft is, A display device that is orthogonal to the rotation axis of the above motor.

13. In Paragraph 12, The above gearbox is: It includes a bottom connected to the first side wall, the second side wall, the third side wall, and the fourth side wall, and The rotating shaft of the above motor and the power shaft are, A display device parallel to the bottom above.

14. In Paragraph 13, The above gearbox is: A display device comprising a box cover facing the bottom and covering an opening formed by the side walls.

15. In Paragraph 13, A display device comprising a bearing cover into which the above-mentioned power shaft is inserted, which covers the above-mentioned hole bearing and is fixed to the above-mentioned third side wall.

Images