Display device and electronic device

Abstract

This display device may comprise: a cover bottom; a plurality of caulking protrusions protruding forward from the cover bottom; an LED housing coupled to the front surface of the cover bottom and including a plurality of caulking holes into which the caulking protrusions are inserted; a backlight unit positioned in front of the LED housing and the cover bottom; and a display panel positioned in front of the backlight unit, wherein the caulking protrusion includes: a pair of caulking legs extending forward from the cover bottom and spaced apart from each other in a first direction; a caulking head connecting the front ends of the pair of caulking legs; and fixing protrusions protruding outward from the caulking legs at both ends of the caulking head in the first direction, whereby the display device can reduce thickness by simplifying a fastening structure between the LED housing and the cover bottom.

Description

Display devices and electronic devices

[0001] The present invention relates to a display device and an electronic device including a slim fastening structure between thin plates.

[0002] As the information society develops, the demand for display devices is also increasing in various forms, and in response to this, recent display devices include liquid crystal displays (LCDs), field emission displays (FEDs), plasma display panels (PDPs), and electroluminescence devices.

[0003] The liquid crystal panel of the liquid crystal display device includes a liquid crystal layer and a TFT substrate and a color filter substrate facing each other with the liquid crystal layer interposed therebetween, and can display an image using light provided from a backlight unit.

[0004] As an example of an electroluminescent device (ELD), an active-matrix type organic light-emitting display device is commercially available. Because OLED displays are self-luminous, they do not require a backlight and offer advantages over liquid crystal displays (LCDs) in terms of response speed, viewing angle, and other factors. Therefore, they are attracting attention as next-generation displays.

[0005] As the thickness of display devices becomes thinner, the fastening structure of the display device also needs to change to correspond to the thinner thickness.

[0006] The purpose of the present invention is to provide a display device with a simplified fastening structure between an LED housing and a cover bottom.

[0007] A display device is provided, comprising: a cover bottom; a plurality of caulking protrusions protruding forward from the cover bottom; an LED housing coupled to a front surface of the cover bottom and including a plurality of caulking holes into which the caulking protrusions are inserted; a backlight unit positioned on the front surface of the LED housing and the cover bottom; and a display panel positioned on the front surface of the backlight unit, wherein the caulking protrusions include a pair of caulking legs extending forward from the cover bottom and spaced apart in a first direction; a caulking head connecting front ends of the pair of caulking legs; and a fixing protrusion protruding outward from the caulking legs at both ends of the caulking head in the first direction.

[0008] The above caulking head may be spaced apart from the circumference of the caulking hole in a second direction perpendicular to the first direction.

[0009] The width of the second direction perpendicular to the first direction of the caulking hole may be wider than the width of the second direction of the caulking protrusion.

[0010] The above caulking head may be square.

[0011] The above-mentioned cocking hole includes a sloped surface that widens in the front direction, and the fixing projection can be secured in contact with the sloped surface.

[0012] The front surface of the above caulking head may be flush with the front surface of the LED housing.

[0013] The LED housing may include a reflector support portion protruding in the front direction; and a connecting portion positioned behind the reflector support portion and having the caulking hole formed therein.

[0014] The above first direction may be a short-side direction of the display device.

[0015] The above LED housing may include aluminum, and the cover bottom may include electrogalvanized steel (EGI).

[0016] The LED housing may include an LED mounting portion that is bent at the bottom and protrudes forward, and the backlight unit may include an LED substrate coupled to an upper surface of the LED mounting portion; a reflector mounted on the front surface of the LED housing and the cover bottom; a light guide plate positioned on the front surface of the reflector plate and having a side surface facing the LED substrate; and an optical sheet positioned on the front surface of the light guide plate.

[0017] An electronic device is provided, comprising: a first plate; a plurality of caulking protrusions protruding from one surface of the first plate; and a second plate coupled to one surface of the first plate and including a plurality of caulking holes into which the caulking protrusions are inserted, wherein the caulking protrusions include a pair of caulking legs extending forward from the first plate and spaced apart in a first direction; a caulking head connecting ends of the pair of caulking legs; and a fixing protrusion protruding outward from both ends of the caulking head in the first direction of the caulking leg.

[0018] The present invention can reduce the thickness of a display device by simplifying the fastening structure of an LED housing and a cover bottom.

[0019] In addition, the display device of the present invention can minimize defects caused by thermal deformation in the longitudinal direction of the LED housing and the cover bottom.

[0020] In addition, the display device of the present invention can reduce the number of parts and simplify the process, thereby reducing manufacturing costs.

[0021] In addition, the display device of the present invention has the advantage of high degree of freedom in component arrangement because there is no protruding area of ​​the body part.

[0022] The effects that can be obtained from the present invention are not limited to the effects mentioned above, and other effects not mentioned can be clearly understood by a person having ordinary skill in the art to which the present invention belongs from the description below.

[0023] Fig. 1 is a perspective view showing an example of a display device of the present invention.

[0024] Figure 2 is an exploded perspective view of the display device of the present invention.

[0025] Figure 3 is a cross-sectional view of the display device of the present invention.

[0026] FIG. 4 is a drawing showing a cover bottom and LED housing of a display device of the present invention.

[0027] Figure 5 is a cross-sectional view showing the connection structure of a conventional cover bottom and an LED housing.

[0028] Figure 6 is a perspective view showing the fastening structure of the cover bottom and LED housing of the present invention.

[0029] Figure 7 is a cross-sectional view taken along lines AA and BB of Figure 6.

[0030] Figure 8 is a drawing illustrating a method for fastening a cover bottom and an LED housing of the present invention.

[0031] 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 will be given the same reference numbers and redundant descriptions thereof will be omitted. The suffixes "module" and "part" used for components in the following description are assigned or used interchangeably only for the convenience of writing the specification, and do not in themselves have distinct meanings or roles. In addition, when describing the embodiments disclosed in this specification, if it is determined that a specific description of a related known technology may obscure the gist of the embodiments disclosed in this specification, a 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 invention.

[0032] 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.

[0033] 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.

[0034] Singular expressions include plural expressions unless the context clearly indicates otherwise.

[0035] 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.

[0036] Meanwhile, the display device (100) described herein is an intelligent display device (100) that adds computer support functions to, for example, a broadcast reception function. While remaining faithful to the broadcast reception function, it can be equipped with an Internet function and other functions, thereby providing a more convenient interface such as a manual input device, touch screen, or space remote control. In addition, it can be connected to the Internet and a computer with support for wired or wireless Internet functions, and can perform functions such as email, web browsing, banking, or games. A standardized, general-purpose operating system (OS) can be used for these various functions.

[0037] Accordingly, the display device (100) described in the present invention can perform various user-friendly functions, for example, since various applications can be freely added or deleted on a general-purpose OS kernel. More specifically, the display device (100) can be, for example, a network TV, HBB TV, smart TV, etc., and in some cases, can also be applied to a smartphone.

[0038] Figure 1 is a front perspective view illustrating an example of a display device of the present invention. The display device (100) includes a display portion (150) that occupies most of the front surface area, a case top (101) that covers the front perimeter and side surfaces of the display portion (150), and a cover bottom (102) that covers the rear surface.

[0039] The display device (100) of the present invention may have a rectangular body including a pair of long sides and a pair of short sides. It may include a first long side (First Long Side, LS1), a second long side (Second Long Side, LS2) opposite the first long side (LS1), a first short side (First Short Side, SS1) adjacent to the first long side (LS1) and the second long side (LS2), and a second short side (Second Short Side, SS2) opposite the first short side (SS1).

[0040] Although the long side extending horizontally and the short side extending vertically are depicted in the drawing, the long side and the short side may be of equal length, and the long side may also be arranged vertically.

[0041] For convenience of explanation, the long side is defined as the side extending in the horizontal direction (x-axis direction) and the short side is defined as the side extending in the vertical direction (y-axis direction). However, as mentioned above, the present invention is not limited thereto.

[0042] The first direction (DR1) may be a direction parallel to the long side (LS1, LS2) of the display panel (100), and the second direction (DR2) may be a direction parallel to the short side (SS1, SS2) of the display panel (100). The third direction (DR3) may be a direction perpendicular to the first direction (DR1) and / or the second direction (DR2).

[0043] The side of the display device (100) that displays an image may be referred to as the front or front surface. When the display device (100) displays an image, the side from which the image cannot be observed may be referred to as the rear or back surface. When the display device displays an image, the side from which the image cannot be observed may be referred to as the rearward direction or rear side (rear surface).

[0044] When viewing the display from the front or front, the first long side (LS1) may be referred to as the upper side or upper surface. Similarly, the second long side (LS2) may be referred to as the lower side or lower surface. Similarly, the first short side (SS1) may be referred to as the right side or right surface, and the second short side (SS2) may be referred to as the left side or left surface.

[0045] The display device (100) may include a display unit (150) that outputs an image. The display unit (150) may convert an image signal, data signal, OSD signal, control signal, etc. processed by the control unit or an image signal, data signal, control signal, etc. received from the interface unit to generate a driving signal. The display unit (150) may include a display panel having a plurality of pixels.

[0046] The plurality of pixels provided on the display panel may have RGB sub-pixels. Alternatively, the plurality of pixels provided on the display panel may have RGBW sub-pixels. The display unit (150) may convert image signals, data signals, OSD signals, control signals, etc. processed by the control unit to generate driving signals for the plurality of pixels.

[0047] The display unit (150) can be a PDP (Plasma Display Panel), LCD (Liquid Crystal Display), OLED (Organic Light Emitting Diode), a flexible display, etc., and may also be a 3D display. The 3D display unit (150) can be divided into a glasses-free type and a glasses type.

[0048] LCD displays rely on a backlight unit to supply light, as LCDs are unable to emit light on their own. The backlight unit is a device that evenly distributes light from the lamp to the liquid crystal display located at the front. As backlight units become thinner, thinner LCDs can be realized.

[0049] Figure 2 is an exploded perspective view of the display device (100) of the present invention, and Figure 3 is a cross-sectional view of the display device (100) of the present invention.

[0050] The display device (100) includes a display unit (150) that outputs an image, and the display unit (150) may be composed of a plurality of layers. It may include a case that accommodates the display unit (150). A cover bottom (102) that supports the back surface of the display unit (150) and covers the front perimeter of the display unit (150) can be fastened to the cover bottom (102) to fix each component of the display unit (150).

[0051] A control unit for controlling a display device (100) may be mounted on the back surface of the cover bottom (102), and a speaker, a microphone, an antenna, etc. may be mounted on the cover bottom (102). A back cover (105, see FIG. 3) for covering electronic components mounted on the cover bottom (102) may be fastened to the back surface of the cover bottom (102).

[0052] The display unit (150) of the present invention is an LCD display including liquid crystals, and includes a display panel (151) and a backlight unit that supplies light to the display panel (151). The backlight unit may include an LED substrate (158) on which a plurality of LEDs (157) are mounted, and an optical layer (154) that changes the optical properties of light so that light output from the LEDs (157) is evenly supplied to the display panel (151).

[0053] The backlight unit can be divided into a direct type and an edge type depending on the arrangement of the LED substrate (158). In the direct type, the LED substrate (158) is arranged on the back of the display panel (151) so that the LED (157) is positioned on the back of the display panel (151).

[0054] The edge type may include a light guide plate (155) that has an LED substrate (158) positioned on one side and evenly supplies it forward. The light guide plate (155) may be formed of a transparent resin material so as to transmit light generated from an LED (157), which is a light source. It may be positioned at a certain distance from the LED (157) so as to minimize deformation due to heat generated from the LED (157).

[0055] Typically, the LED substrate (158) is positioned at the bottom of the display device (100), and FIGS. 2 and 3 illustrate an edge-type backlight unit. The LED substrate (158) may be positioned at only one edge of the light guide plate (155), or may be positioned at two or more edges. The backlight unit can reuse light emitted from the LED (157) by placing a reflector (156) on the back surface of the light guide plate (155).

[0056] A guide panel (152) may be further included to align the positions of the light guide plate (155), the optical layer (154), and the display panel (151). The guide panel (152) of the present embodiment can be fastened to the cover bottom (102).

[0057] When multiple LEDs (157) are driven simultaneously and the display device (100) is used for a long period of time, heat may be generated in the LED substrate (158). To easily dissipate the heat from the LED substrate (158), the LED housing (103) may be made of aluminum material with high thermal conductivity.

[0058] The LED housing (103) may have a bead shape for rigidity, and the portion (1033) protruding forward may be a support for the reflector (156) on which the reflector (156) of the backlight unit is mounted.

[0059] The LED housing (103) may include an LED mounting portion (1038) on which the LED substrate (158) is mounted. If the backlight unit is edge-type, the LED substrate (158) is positioned laterally of the light guide plate (155), and thus, as illustrated in FIG. 3, the LED mounting portion (1038) may be formed by extending forward from the lower end of the LED housing (103).

[0060] The LED substrate (158) can be attached to the LED mounting portion (1038) using double-sided tape, etc., and if the LED substrate (158) is broken, the double-sided tape can be removed and replaced with a new LED substrate (158).

[0061] FIG. 4 is a drawing showing a cover bottom (102) and an LED housing (103) of a display device (100) of the present invention.

[0062] The LED housing (103) can be fastened to the front of the cover bottom (102), and, as shown in FIG. 4, when it includes an edge-type backlight unit, it can be positioned to overlap a portion of the lower part of the cover bottom (102). When the display device (100) includes a direct-type backlight unit, it can be positioned over the entire front of the cover bottom (102).

[0063] The LED housing (103) may include a plurality of fastening members (200) for fastening to the cover bottom (102). As shown in FIG. 4, a plurality of fastening members (200) may be positioned horizontally and vertically apart from each other, and the number may vary depending on the size of the display device (100).

[0064] Fig. 5 is a cross-sectional view illustrating a conventional fastening structure of a cover bottom (102) and an LED housing (103). When a screw method is used as a representative fastening method, even if a small size is used as shown in Fig. 5, the thickness in the front-back direction is at least 5 mm.

[0065] In addition, the head of the screw (S) is exposed in the front direction, which is the upper side in the drawing, making it difficult to implement a flat plane on the front of the LED housing (103), and the end of the screw (S) protrudes in the rear direction, which may restrict the use of the rear space of the cover bottom (102).

[0066] Accordingly, the present invention can implement a simpler fastening structure by using a caulking protrusion (106) and a caulking hole (1035). Fig. 6 is a perspective view showing the fastening structure of the cover bottom (102) and the LED housing (103) of the present invention, and Fig. 7 is a cross-sectional view taken along lines AA and BB of Fig. 6.

[0067] The fastening member (200) of the present invention includes a plurality of caulking protrusions (106) protruding forward from the cover bottom (102) and caulking holes (1035) formed in the LED housing (103). The LED housing (103) is made of aluminum, so it is difficult to process a shape such as the caulking protrusions (106). Therefore, the caulking holes (1035) are formed in the LED housing (103), and the caulking protrusions (106) can be formed in the cover bottom (102) made of a rigid material such as electrogalvanized steel (EGI).

[0068] The cocking hole (1035) may be formed in an area protruding rearward from the reflector support (1033), and since the fastening member (200) of the present invention does not protrude forward from the LED housing (103), the cocking hole (1035) may be formed in the reflector support (1033).

[0069] The caulking projection (106) is inserted into the caulking hole (1035) and may include caulking heads (1061) protruding in both directions in the first direction so as not to be separated from the caulking hole (1035). The caulking projection (106) may include a pair of caulking legs (1062) extending forward from the cover bottom (102) and may include a caulking head (1061) positioned at the front of the caulking legs (1062).

[0070] The cocking leg (1062) may be spaced apart in the first direction, and the connection portion of the cocking leg (1062) and the cocking head (1061) may include a fixing projection (1063) protruding outward. The fixing projection (1063) may extend in the front direction of the cocking hole (1035) to fix the cocking projection (106) to the cocking hole (1035).

[0071] Fig. 7 (a) is a cross-section in a first direction, and Fig. 7 (b) is a cross-section in a second direction. The first direction may be the short-side direction of the display device (100), and in the display device (100) of the present embodiment, the vertical direction (y-axis direction) is the first direction.

[0072] The fixed protrusion (1063) protrudes only from both sides of the caulking head (1061) in the first direction (see Fig. 7 (a)), and is not formed on the end (1064) of the caulking head (1061) in the second direction. As shown in Fig. 7 (a), the fixed protrusion (1063) is in close contact with the caulking hole (1035) in the first direction, and as shown in Fig. 7 (b), it is spaced apart from the caulking hole (1035).

[0073] Slip may occur due to thermal deformation in the second direction, which is the longitudinal direction, and thus, to accommodate such thermal deformation, the caulking hole (1035) and the caulking protrusion (106) may have a gap in the second direction. In the first direction, where thermal deformation is relatively small, the fixing protrusion (1063) may be pressed against the inner surface of the caulking hole (1035) to fix the LED housing (103) to the cover bottom (102).

[0074] Fig. 8 is a drawing illustrating a method of fastening a cover bottom (102) and an LED housing (103) of the present invention. As illustrated in (a) of Fig. 8, before fastening the cover bottom (102) and the LED housing (103), a caulking protrusion (106) protruding from the front of the cover bottom (102) may have a ㄷ shape with the caulking leg (1062) and the caulking head (1061) forming a right angle.

[0075] As shown in (b) of Fig. 8, when the caulking protrusion (106) is inserted into the caulking hole (1035) of the LED housing (103) and the caulking head (1061) protruding from the front side (upper surface in the drawing) of the LED housing (103) is pressed, the upper end of the caulking leg (1062) is deformed, and the caulking protrusion (106) as shown in (a) of Fig. 7 can be formed.

[0076] To provide a space for forming a caulking projection (106), the caulking hole (1035) may include an inclined surface (1036) or a stepped portion (not shown) on the inner surface in the first direction. Depending on the shape of the inner surface in the first direction of the caulking hole (1035), the connecting portion of the caulking leg (1062) and the caulking head (1061) may be deformed and the fixing projection (1063) may be formed.

[0077] The fixed protrusion (1063) is in close contact with the inclined surface (1036) of the caulking hole (1035), and the front surface of the caulking head (1061) and the front surface of the LED housing (103) can form the same plane as shown in (a) of Fig. 7. Since the caulking protrusion (106) does not protrude toward the front surface of the LED housing (103), the portion where the caulking protrusion (106) is located can also be used as a mounting surface on which the reflector (156) is mounted.

[0078] The caulking leg (1062) can be formed only on both sides in the first direction. Since the second direction side (1064) of the caulking head (1061) does not contact the caulking hole (1035), the fixing projection (1063) is unnecessary, and therefore, in the second direction, when a circular caulking projection (106) is used, the caulking projection (106) is formed at 360° without directionality, so the protrusion amount is small, and the size of the fixing projection (1063) is limited.

[0079] If the thickness of the LED housing (103) is thick, the fixing force is insufficient. In addition, it is difficult to implement a fastening structure that accommodates thermal deformation in a specific direction, like the square caulking protrusion (106) of the present invention, with a circular caulking protrusion (106).

[0080] In order to prevent the formation of a fixing protrusion (1063) in the second direction, the caulking protrusion (106) is connected to the cover bottom (102) through the caulking leg (1062) in the first direction as shown in (a) of FIG. 7, but as shown in (b) of FIG. 7, the second direction perpendicular to the first direction may be open and not connected to the caulking protrusion (106).

[0081] The fastening method using the caulking protrusion (106) and caulking hole (1035) discussed above can be applied to an electronic device including a thin structure fastened to two plates (first plate and second plate) in addition to the cover bottom (102) and the LED housing (103).

[0082] A caulking projection (106) is formed on the first plate (102), a caulking hole (1035) is formed on the second plate (103), and the caulking projection (106) is inserted into the caulking hole (1035) and then the caulking projection (106) is pressed to fasten the first plate (102) and the second plate (103).

[0083] As described above, the present invention can reduce the thickness of the display device (100) by simplifying the fastening structure of the LED housing (103) and the cover bottom (102).

[0084] In addition, the display device (100) of the present invention can minimize defects caused by thermal deformation in the longitudinal direction of the LED housing (103) and the cover bottom (102).

[0085] In addition, the display device (100) of the present invention can reduce the number of parts and simplify the process, thereby reducing manufacturing costs.

[0086] In addition, the display device (100) of the present invention has the advantage of high degree of freedom in component arrangement because there is no protruding area of ​​the body part (200).

[0087] 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.

[0088] With respect to various embodiments for implementing the present invention, duplicate descriptions are omitted as they have been described above in the previous table of contents, Best Mode for Carrying Out the Invention.

[0089] Since the present invention can be applied to display devices in various fields, its industrial applicability is recognized.

Claims

1. Cover bottom; A plurality of cocking projections protruding forward from the above cover bottom; An LED housing that is coupled to the front of the cover bottom and includes a plurality of caulking holes into which the caulking protrusions are inserted; A backlight unit located on the front of the LED housing and the cover bottom; and Includes a display panel located on the front of the above backlight unit, The above caulking protrusion A pair of cocking legs extending forward from the cover bottom and spaced apart in the first direction; A caulking head connecting the front ends of the above pair of caulking legs; and A display device characterized in that it includes a fixing projection protruding outward from the first end of the cocking leg of the cocking head.

2. In paragraph 1, The above cocking head A display device characterized in that a second direction perpendicular to the first direction is spaced apart from the perimeter of the cocking hole.

3. In paragraph 1, The width of the second direction perpendicular to the first direction of the above cocking hole is A display device characterized in that the width of the second direction of the above-mentioned cocking protrusion is wider.

4. In paragraph 1, A display device characterized in that the above-mentioned cocking head is characterized by a square shape.

5. In paragraph 1, The above cocking hole includes a slope that widens in the front direction, A display device characterized in that the above-mentioned fixing protrusion is fixed in contact with the above-mentioned inclined surface.

6. In paragraph 1, A display device characterized in that the front surface of the above-mentioned caulking head is flush with the front surface of the above-mentioned LED housing.

7. In paragraph 1, The above LED housing a reflector support protruding toward the front; and A display device characterized by including a fastening part located behind the reflector support part and having the cocking hole formed therein.

8. In paragraph 1, A display device, characterized in that the first direction is a short-side direction of the display device.

9. In paragraph 1, The above LED housing comprises aluminum, A display device characterized in that the cover bottom comprises electrogalvanized steel (EGI).

10. In paragraph 1, The above LED housing includes an LED mounting portion that is bent at the bottom and protrudes forward, The above backlight unit An LED substrate coupled to the upper surface of the above LED mounting portion; A reflector mounted on the front of the LED housing and the cover bottom; A light guide plate positioned so that its side faces the LED substrate and is located in front of the reflector; and A display device characterized by including an optical sheet positioned on the front surface of the light guide plate.

11. First plate; A plurality of caulking projections protruding from one surface of the first plate; and A second plate is coupled to one surface of the first plate and includes a plurality of caulking holes into which the caulking protrusions are inserted, The above caulking protrusion A pair of cocking legs extending forward from the first plate and spaced apart in the first direction; A caulking head connecting the ends of the pair of caulking legs; An electronic device characterized in that it includes a fixing projection protruding outward from the first end of the cocking leg of the cocking head.

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