Patent Description:
A display device includes a liquid crystal display (LCD), a field emission display (FED), a plasma display panel (PDP), and an electroluminescence device. As an example of an electroluminescence device, an active matrix type organic light emitting display device is commercially available. Since organic light emitting display devices are self-luminous devices, they have no backlight as compared with liquid crystal display devices, and have advantages in response speed, viewing angle, and the like, and are attracting attention as a next generation display.

The manufacturing process of the display device includes assembling the back cover to the module cover. The back cover can be fastened to the rear of the display panel and the module cover for displaying the input image.

When fastening the back cover to the module cover, there is a problem because the work process is long due to a large number of fastening parts including screws. Further, when fastening or removing the back cover to/from the module cover, the fastening parts are often broken, and the broken parts remain as foreign matters in the module cover. <CIT>, describes a display apparatus having: a display panel; a backlight unit disposed on a rear side of the display panel; a bottom cover disposed on a rear side of the backlight unit, the bottom cover being coupled to the cabinet to package the display panel and the backlight unit; a main board disposed on a rear side of the bottom cover; and a back cover covering the main board, the back cover being coupled to the bottom cover to partially cover the bottom cover. <CIT> describes a display device having: a rear surface panel coupled to the dis-play panel by means of a first adhesive tape; a rigid bar which is arranged between the display panel and the rear surface panel and coupled to the rear surface of the display panel by means of a second adhesive tape. See abstract of the document.

<CIT> describes a fixing structure for a display panel.

The invention is indicated in the independent claim. Further embodiments are indicated in the dependent claims.

Accordingly, one object of the present invention is to solve the above problems or other problems.

Another object of this invention is to provide a display device of which manufacturing process for assemble a back cover and a module cover is simplified.

Still another object of present invention is to provide a display device capable of preventing breakage of a fastening part when assembling or disassembling a back cover on a module cover.

Another object of present invention is to provide a display device including a rigid bar securing rigidity.

Yet another object of present invention is to provide a display device including a structure capable of fastening a rigid bar to the back cover.

Another object of present invention is to provide a display device capable of enhancing the heat dissipation.

The display device according to an embodiment of the present invention includes amongst others a display panel; a module cover at a rear of the display panel; a rigid bar coupled with a rear surface of the module cover, the rigid bar elongated along a side of the display panel, a first receiving portion formed on the rigid bar; and a back cover at a rear of the module cover, including: an outer surface facing a rear of the back cover; an inner surface facing the module cover; and a first latch protruding from the inner surface, wherein the first latch is accommodated in the first receiving portion of the rigid bar.

According to one aspect, a display device comprises amongst others a display panel; a module cover at a rear of the display panel; a rigid bar coupled with a coupling portion on a rear surface of the module cover, the rigid bar elongated along a side of the display panel; and a back cover at a rear of the module cover and covering the rigid bar. The rigid bar includes a fastening plate spaced apart from the coupling portion of the module cover; a lateral plate bent toward the module cover from the fastening plate; and at least one first receiving portion formed on the lateral plate. The back cover includes an outer surface facing a rear of the back cover; an inner surface facing the module cover; and at least one first latch protruding from the inner surface and configured to be accommodated in the first receiving portion of the rigid bar. The back cover further may include a cover plate spaced apart from the module cover; and
a first lateral wall elongated toward a front of the back cover from an upper side of the cover plate. The first latch may protrude from an inner surface of the first lateral wall. The inner surface of the first lateral wall may face the module cover. The module cover may include a flat portion forming the rear surface of the module cover. The coupling portion may be bent toward the rear of the module cover from the flat portion. The first receiving portion may include a plurality of first receiving portions disposed in a lengthwise direction of the lateral plate. The first latch may include a plurality of first latches disposed in a lengthwise direction of the first lateral wall such that the plurality of first latches are accommodated in the plurality of first receiving portions, respectively. The rigid bar further includes a flange which may be elongated from the lateral plate. The flange may be coupled with the coupling portion of the module cover. The coupling portion may form a first space accommodating a fastening member penetrating the flange and the coupling portion and fastening the rigid bar to the coupling portion. The rigid bar further may include a recessed portion depressed towards the module cover from the fastening plate. A fastening member may penetrate the recessed portion and the module cover to fasten the rigid bar to the coupling portion of the module cover. The back cover further may include: a second lateral wall elongated toward a left side or a right side of the cover plate; and a second latch protruding from an inner surface of the second lateral wall, the inner surface of the second lateral wall facing the module cover. The second latch may include a plurality of second latches. The module cover may include a plurality of second receiving portion passing through the coupling portion such that the plurality of second latches are inserted in the plurality of second receiving portions. Each of the second receiving portions may include a receiving hole penetrating through the coupling portion; and a guide hole penetrating through the coupling portion, the guide hole positioned adjacent to the receiving hole. Each of the second latches may include a hook-shaped fastening latch inserted into the receiving hole; and a pillar-shaped guide latch inserted into the guide hole. The pillar-shaped guide latch may be fitted in the guide hole and the hook-shaped fastening latch may be hooked with the receiving hole. The first lateral wall may include a plurality of heat dissipation openings penetrating through the first lateral wall. The module cover further may include a spacer protruding toward a rear of the flat portion. The spacer may be coupled with a power supply unit. The power supply unit may be positioned between the module cover and the back cover. The display device may further comprise a first auxiliary rigid bar fastened to the coupling portion. The first auxiliary rigid bar may be perpendicular to the rigid bar. The first auxiliary rigid bar may be positioned between the module cover and the back cover. The display device may further comprise a second auxiliary rigid bar positioned apart from the first auxiliary rigid bar; a guide supporter having a first side fastened to the second auxiliary rigid bar and a second side fastened to the first auxiliary rigid bar; and a stand inserted into the guide supporter. The display device may further comprise a front plate positioned behind the display panel and being coupled with the flat portion. A space may be formed between the front plate and the coupling portion. The coupling portion of the module cover may comprise a ladder shape including a lower side rail positioned on a lower surface of the module cover and an upper side rail spaced apart and positioned above the lower side rail.

According to embodiments of the present invention, the process of assembling the back cover to the module cover is simplified by fastening the back cover to the module cover without using a screw by the rigid bar. Further, by fastening the back cover to the module cover without using a screw by the rigid bar, breakage of the fastening component can be prevented when assembling or separating the module cover and the back cover. In addition, the rigidity of the display device is greatly increased by further fastening the rigid bar, the auxiliary rigidity bar and the guide supporter to the module cover. Also, heat generated from the electronic component can be dissipated by the heat dissipation opening provided in the back cover.

Further scope of applicability of the present invention will become apparent from the detailed description given hereinafter. However, the detailed description and specific examples, while indicating preferred embodiments of the invention, are given by illustration only, since various changes and modifications within the scope of the invention will become apparent to those skilled in the art from this detailed description.

In the drawings:.

Reference will now be made in detail embodiments of the invention examples of which are illustrated in the accompanying drawings. Since the present invention may be modified in various ways and may have various forms, specific embodiments are illustrated in the drawings and are described in detail in the present specification. However, it should be understood that the present invention are not limited to specific disclosed embodiments, but include all modifications, equivalents and substitutes included within the technical scope of the present invention.

The terms 'first', 'second', etc. may be used to describe various components, but the components are not limited by such terms. The terms are used only for the purpose of distinguishing one component from other components. For example, a first component may be designated as a second component without departing from the scope of the present invention. In the same manner, the second component may be designated as the first component.

The term "and/or" encompasses both combinations of the plurality of related items disclosed and any item from among the plurality of related items disclosed. When an arbitrary component is described as "being connected to" or "being linked to" another component, this should be understood to mean that still another component(s) may exist between them, although the arbitrary component may be directly connected to, or linked to, the second component. In contrast, when an arbitrary component is described as "being directly connected to" or "being directly linked to" another component, this should be understood to mean that no component exists between them.

The terms used in the present application are used to describe only specific embodiments or examples, and are not intended to limit the present invention. A singular expression can include a plural expression as long as it does not have an apparently different meaning in context. In the present application, the terms "include" and "have" should be understood to be intended to designate that illustrated features, numbers, steps, operations, components, parts or combinations thereof exist and not to preclude the existence of one or more different features, numbers, steps, operations, components, parts or combinations thereof, or the possibility of the addition thereof.

Unless otherwise specified, all of the terms which are used herein, including the technical or scientific terms, have the same meanings as those that are generally understood by a person having ordinary knowledge in the art to which the present invention pertains. The terms defined in a generally used dictionary must be understood to have meanings identical to those used in the context of a related art, and are not to be construed to have ideal or excessively formal meanings unless they are obviously specified in the present application.

The following exemplary embodiments of the present invention are provided to those skilled in the art in order to describe the present invention more completely. Accordingly, shapes and sizes of elements shown in the drawings may be exaggerated for clarity.

Hereinafter, the embodiments of the invention are described using a liquid crystal display panel as an example of a display panel. Other display panels may be used. For example, a plasma display panel (PDP), a field emission display (FED) panel, and an organic light emitting diode (OLED) display panel may be used.

As shown in <FIG>, a display device <NUM> includes 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.

Further, the first short side SS1 may be referred to as a first side area; the second short side SS2 may be referred to as a second side area opposite the first side area; the first long side LS1 may be referred to as a third side area which is adjacent to the first side area and the second side area and is positioned between the first side area and the second side area; and the second long side LS2 may be referred to as a fourth side area which is adjacent to the first side area and the second side area, is positioned between the first side area and the second side area, and is opposite to the third side area.

In addition, the lengths of the first and second long sides LS1 and LS2 are longer than lengths of the first and second short sides SS1 and SS2 for the sake of brevity and ease of reading. However, the lengths of the first and second long sides LS1 and LS2 can also be almost equal to the lengths of the first and second short sides SS1 and SS2.

In the following description, a first direction DR1 is a direction parallel to the long sides LS1 and LS2 of the display device <NUM>, and a second direction DR2 is a direction parallel to the short sides SS1 and SS2 of the display device <NUM>. Further, a third direction DR3 is a direction vertical to the first direction DR1 and/or the second direction DR2.

In addition, the first direction DR1 and the second direction DR2 may be commonly referred to as a horizontal direction. Further, the third direction DR3 may be referred to as a vertical direction. In another point of view, a side or a surface, on which the display device <NUM> displays an image, may be referred to as a front side or a front surface.

When the display device <NUM> displays the image, a side or a surface, at which the image cannot be observed, may be referred to as a back side or a back surface. When the display device <NUM> is observed at the front side or the front surface, the first long side LS1 may be referred to as an upper side or an upper surface. In the same manner as the first long side LS1, the second long side LS2 may be referred to as a lower side or a lower surface. Also, the first short side SS1 may be referred to as a left side or a left surface, and the second short side SS2 may be referred to as a right side or a right surface.

Further, the first long side LS1, the second long side LS2, the first short side SS1, and the second short side SS2 may be referred to as edges of the display device <NUM>. Positions where the first long side LS1, the second long side LS2, the first short side SS1, and the second short side SS2 meet one another may be referred to as corners. For example, a position where the first long side LS1 and the first short side SS1 meet each other may be referred to as a first corner C1; a position where the first long side LS1 and the second short side SS2 meet each other may be referred to as a second corner C2; a position where the second short side SS2 and the second long side LS2 meet each other may be referred to as a third corner C3; and a position where the second long side LS2 and the first short side SS1 meet each other may be referred to as a fourth corner C4.

In addition, a direction from the first short side SS1 to the second short side SS2 or a direction from the second short side SS2 to the first short side SS1 may be referred to as a left-right direction LR. A direction from the first long side LS1 to the second long side LS2 or from the second long side LS2 to the first long side LS1 may be referred to as an up-down direction UD.

Referring to <FIG> and <FIG>, the display panel <NUM> may include a transparent substrate, an upper electrode, an organic light emitting layer, and a lower electrode. The transparent substrate, the upper electrode, the organic light emitting layer, and the lower electrode may be sequentially disposed and formed.

The transparent substrate and the upper electrode include a transparent material (e.g., ITO, etc.). The lower electrode may include a non-transparent material, but may also include a transparent material (for example, ITO or the like). In this instance, light can be emitted to one surface of the lower electrode.

When a voltage is applied to the upper and lower electrodes, light emitted from the organic light emitting layer is transmitted through the upper electrode and the transparent substrate to be emitted to the outside. In addition, a light shielding plate may be further formed behind the lower electrode to reflect light emitted to the lower electrode toward the front side.

For example, the display device <NUM> may be an organic light emitting diode (OLED) display device <NUM>. An active matrix type organic light emitting display panel includes an organic light emitting diode (OLED) which emits light by itself, has a high response speed, and has a large luminous efficiency, luminance, and viewing angle.

The OLED, which is a self-luminous device, includes an anode electrode, a cathode electrode, and organic compound layers (HIL, HTL, EML, ETL, EIL) formed therebetween. The organic compound layer includes a hole injection layer (HIL), a hole transport layer (HTL), an emission layer (EML), an electron transport layer (ETL), and an electron injection layer EIL). When a driving voltage is applied to the anode electrode and the cathode electrode, holes passing through the HTL and electrons passing through the ETL are transferred to the EML to form an exciton. As a result, the light emitting layer (EML) Thereby generating visible light.

Accordingly, the OLED does not require a separate light source, and the volume and weight of the display device <NUM> can be reduced. In addition, since the reaction speed of the OLED is <NUM> times faster than that of the liquid crystal display device, there is less afterimage when the image is displayed.

Referring to <FIG>, adhesive members <NUM> and <NUM> may be located on the front surface of the module cover <NUM>. In particular, the first adhesive member <NUM> can be disposed on the left side of the module cover <NUM>. Further, the first adhesive member <NUM> may have magnetism. Alternatively, the first adhesive member <NUM> may be a double-sided tape.

The second adhesive member <NUM> can be disposed on the right side of the module cover <NUM> and may have magnetism. Alternatively, the second adhesive member <NUM> may be a double-sided tape. In addition, the member layer ML is electrically connected to the display panel <NUM> and can extend from the display panel <NUM>. The member layer ML may include, for example, a chip-on-film (COF), a chip-on-glass (COG), a flexible printed circuit board (FPCB), a tape carrier package (TCP).

In addition, the source PCB SP is electrically connected to the member layer ML and can integrate a plurality of member layers ML. The cable FC (for example FFC) is electrically connected to the source PCB SP and is electrically connected to control units (unseen) located behind the module cover <NUM>. Further, the cable FC can be inserted into the slots SL1 and SL2 formed on the module cover <NUM>. The slots SL1 and SL2 include a first slot SL1 and a second slot SL2.

As shown, the display panel <NUM> is positioned in front of the module cover <NUM> and can be fixed or coupled to the front surface of the module cover <NUM>. In particular, the display panel <NUM> can be fixed on the front surface of the module cover <NUM> by the adhesive members <NUM> and <NUM>.

The display panel <NUM> is coupled to the front surface of the module cover <NUM> by magnetic force of the adhesive members <NUM> and <NUM>. Further, the display panel <NUM> can be moved left or right or up or down on the module cover <NUM>. That is, the display panel <NUM> has slight movement while being coupled to the front surface of the module cover <NUM>. In other words, the curvature change of the display panel <NUM> and/or the module cover <NUM> may be coped with.

Referring to <FIG>, the module cover <NUM> is disposed behind the display panel <NUM>, and the back cover <NUM> is disposed behind the module cover <NUM>. A rigid bar <NUM>, an auxiliary rigid bar <NUM> and a guide supporter <NUM> are disposed between the module cover <NUM> and the back cover <NUM>. The stand <NUM> (see <FIG>) can be inserted between the module cover <NUM> and the back cover <NUM>.

The module cover <NUM> includes a flat portion <NUM> and a coupling portion <NUM>. The flat portion <NUM> forms an overall appearance of the module cover <NUM>, and alternatively may form an overall appearance of the rear surface of the module cover <NUM>. In addition, the coupling portion <NUM> can be formed by bending a part of the flat portion <NUM> toward the rear of the module cover <NUM>. Further, the coupling portion <NUM> may have a shape in which the part of the flat portion <NUM> protrudes rearward of the module cover <NUM>. For example, the coupling portion <NUM> can be formed by press-working the flat portion <NUM>.

The coupling portion <NUM> can also be formed by bending a portion of the flat portion <NUM> rearwardly, and be provided as a single coupling portion <NUM> or a plurality of the coupling portions <NUM>. For example, the coupling portion <NUM> may form one closed curved surface or a plurality of closed curved surfaces separately.

The module cover <NUM> may include a spacer <NUM> protruding from the flat portion <NUM> or the coupling portion <NUM>. In addition, the spacer <NUM> can be formed by bending a part of the flat portion <NUM> or a part of the coupling portion <NUM> toward the rear of the module cover <NUM>. The spacer <NUM> also has a shape in which the part of the flat portion <NUM> or the coupling portion <NUM> protrudes rearward of the cover. For example, the spacer <NUM> can be formed by press-working the flat portion <NUM> or the coupling portion <NUM>.

Further, the spacer <NUM> can be fastened with a component such as a PCB substrate that generates heat. The spacers <NUM> thus lessen heat transmitted to the display panel <NUM> by separating the heat source (the heat generating component) from the flat portion <NUM> of the module cover <NUM>. Therefore, the spacer <NUM> helps prevent the display panel <NUM> from being damaged due to heat.

As shown in <FIG>, the module cover <NUM> may include a front plate <NUM> positioned in front of the flat portion <NUM>. Further, the front surface of the front plate <NUM> may be coupled with the display panel <NUM>, and the rear surface of the front plate <NUM> may be coupled with the flat portion <NUM>. A bonding member can be disposed between the front plate <NUM> and the flat portion <NUM>.

Also, the coupling portion <NUM> includes a first space IS1 which open forward. The first space IS1 is closed by the front plate <NUM> or the display panel <NUM>. The coupling portion <NUM> and the front plate <NUM> may also form a first space IS1. As shown, the first space IS1 may be formed between the front plate <NUM> and the coupling portion <NUM>. The coupling portion <NUM> can also be formed with a second receiving portion <NUM> (<FIG>) for fastening the module cover <NUM> and the back cover <NUM> to each other. The description of the second receiving portion <NUM> will be described later.

Referring to <FIG>, the rigid bar <NUM> can be fastened to the rear surface of the module cover <NUM>. The rigid bar <NUM> may be elongated in the horizontal direction and be coupled with the coupling portion <NUM>. The horizontal direction is a direction along a horizontal axis.

As shown in <FIG>, the rigid bar <NUM> also includes a fastening plate <NUM> facing the coupling portion <NUM> and a lateral plate <NUM> bent from the fastening plate <NUM>. The rigid bar <NUM> also includes a flange <NUM> formed on the fastening plate <NUM> or the lateral plate <NUM>.

Further, the fastening plate <NUM> is disposed parallel to the coupling portion <NUM> or the flat portion <NUM>. The fastening plate <NUM> can be positioned spaced apart from the coupling portion <NUM> and include a recessed portion <NUM> that is recessed forward. The recessed portion <NUM> is in contact with the coupling portion <NUM>. A hole may be formed in the recessed portion <NUM>. A hole corresponding to the hole of the recessed portion <NUM> can also be formed in the coupling portion <NUM>.

In addition, the fastening plate <NUM> and the coupling portion <NUM> can be fastened by the fastening member S. For example, the fastening member S can penetrate through the recessed portion <NUM> and the coupling portion <NUM>. A part of the fastening member S is also positioned in the first space IS1 formed by the coupling portion <NUM>. That is, the coupling portion <NUM> provides a space in which the fastening member S is inserted or a portion of the fastening member S is accommodated.

As shown, the lateral plate <NUM> is bent forward from the fastening plate <NUM> and can be formed by bending an upper portion of the fastening plate <NUM>. In addition, the lateral plate <NUM> can also be formed by bending a lower portion of the fastening plate <NUM>. Further, the lateral plate <NUM> can be formed by bending a left portion of the fastening plate <NUM> and by bending a right portion of the fastening plate <NUM>. The lateral plate <NUM> is also disposed orthogonal to the fastening plate <NUM> or the coupling portion <NUM> or the flat portion <NUM>.

In addition, a first receiving portion <NUM> is formed on the lateral plate <NUM>. For example, the first receiving portion <NUM> may be formed on the lateral plate <NUM> bent at the upper portion of the fastening plate <NUM>. Also, the lateral plate <NUM> on which the first receiving portion <NUM> is located can face upward. Thus, the first latch portion <NUM> (see <FIG>) of the back cover <NUM>, which will be described later, can be inserted into the first receiving portion <NUM>.

The first receiving portion <NUM> can also be formed through the lateral plate <NUM> and have a plurality of first receiving portions <NUM>. For example, the plurality of first receiving portions <NUM> can be formed along the longitudinal direction of the side plate <NUM>. In addition, the first receiving portion <NUM> may be a hole in the form of a square or a circle. The first receiving portion <NUM> may also have a shape of a recess and have a shape of a hole. Thus, the first receiving portion can be referred to as a first receiving opening <NUM> or a first receiving hole <NUM>.

Further, the flange <NUM> may be in contact with the coupling portion <NUM>. Alternatively, the flange <NUM> may be positioned parallel to the fastening plate <NUM>. The flange <NUM> can support the lateral plate <NUM> or the fastening plate <NUM> so that the lateral plate <NUM> or the fastening plate <NUM> is stably coupled to the coupling portion <NUM>.

The flange <NUM> connected to the lateral plate <NUM> bent at the left side or the right side of the fastening plate <NUM> can also be fastened to the coupling portion <NUM>. In addition, the flange <NUM> and the coupling portion <NUM> can be fastened by the fastening member S. That is, the fastening member S can penetrate the flange <NUM> and the coupling portion <NUM>. A part of the fastening member S can thus be disposed in the first space IS1 formed by the coupling portion <NUM>. That is, the coupling portion <NUM> provides a space in which the fastening member S is disposed.

When the size of the display panel <NUM> is increased, the module cover <NUM> is also enlarged corresponding to the size of the display panel <NUM>. When the display panel <NUM> and the module cover <NUM> are enlarged, there is a concern for the rigidity of the display device <NUM>. By coupling the module cover <NUM> with the rigid bar <NUM>, the rigidity can be secured. That is, the rigid bar <NUM> fastened to the module cover <NUM> in the horizontal direction can secure the overall rigidity of the display device <NUM> and prevent the display panel <NUM> or the module cover <NUM> from being bent.

Referring to <FIG>, an auxiliary rigid bar <NUM> and a guide supporter <NUM> may be fastened to the module cover <NUM>. The auxiliary rigid bar <NUM> may be formed long in the vertical direction. For example, the auxiliary rigid bar <NUM> can be disposed orthogonal to the rigid bar <NUM> and be fastened to the coupling portion <NUM>. The auxiliary rigid bar <NUM> can also be coupled to the lower rear portion of the module cover <NUM> and be disposed below the rigid bar <NUM>.

Further, the auxiliary rigid bar <NUM> may have a plurality of auxiliary rigid bars <NUM>. For example, the auxiliary rigid bar <NUM> may have a first auxiliary rigid bar 60a and a second auxiliary rigid bar 60b. The plurality of auxiliary rigid bars 60a and 60b may be positioned between the rigid bar <NUM> and a lower side of the coupling portion <NUM>. As shown, the plurality of auxiliary rigid bars 60a and 60b, the rigid bar <NUM>, and the lower side of the coupling portion <NUM> have a shape of a ladder.

In addition, the first auxiliary rigid bar 60a and the second auxiliary rigid bar 60b can be spaced apart and disposed in the horizontal direction. When the stand <NUM> (<FIG>) is inserted or fitted between the module cover <NUM> and the back cover <NUM>, the weight load of the display device <NUM> can be concentrated in a specific area. Further, the auxiliary rigid bar <NUM> can secure rigidity or stiffness such that the display device <NUM> is not deformed even if the weight load is concentrated on a specific area of the display device <NUM>.

The guide supporter <NUM> can also be disposed behind the module cover <NUM>. Further, a side of the guide supporter <NUM> can be fastened to the first auxiliary rigid bar 60a and another side of the guide supporter <NUM> can be fastened to the second auxiliary rigid bar 60b. The other side of the guide supporter <NUM> is opposite the side of the guide supporter <NUM>. In addition, the guide supporter <NUM> provides a space in which the stand <NUM> is to be inserted or accommodated. That is, the space is formed between the guide supporter <NUM> and the back cover <NUM>, and the stand <NUM> is inserted into the space.

Further, the rigid bar <NUM> extends in the horizontal direction, and the auxiliary rigid bar <NUM> extends in the vertical direction. The auxiliary rigid bar <NUM> reinforces the flexural and/or torsional stiffness of the display device <NUM>. In addition, the guide supporter <NUM> is mounted on the auxiliary rigid bar <NUM> so as to overlap with the auxiliary rigid bar <NUM>. The guide supporter <NUM> is also provided with additional stiffness from the auxiliary rigid bar <NUM>.

As shown in <FIG>, the stand <NUM> may include a fastening leg 5A and a pedestal 5B. In particular, the fastening leg 5A is elongated from the pedestal and inserted or fitted between the module cover <NUM> and the back cover <NUM>. The rigid bar <NUM> and the pedestal 5B are also parallel to each other, and the fastening leg 5A is positioned between the rigid bar <NUM> and the pedestal 5B. The fastening leg 5A is also parallel to the auxiliary bar <NUM>.

In addition, the rigid bar <NUM>, the pedestal 5B, and the fastening leg 5A, have a shape of the ladder. The rigid bar <NUM>, the pedestal 5B, and the auxiliary bar <NUM>, may also have a shape of the ladder. Further, the guide supporter <NUM> includes a fastening groove GV for fastening the stand <NUM>. The fastening groove GV may have a plurality of fastening grooves GV.

The fastening legs 5A of the stand <NUM> are inserted into the fastening grooves GV of the guide supporter <NUM> and then fastened by a screw or the like. Since the guide supporter <NUM> is provided with additional rigidity from the auxiliary rigid bar <NUM>, the fastening rigidity of the stand <NUM> of the display device <NUM> is increased and the support force of the stand <NUM> is stably secured.

In addition, an electronic component can be coupled to the rear surface of the module cover <NUM>. The electronic component includes, for example, a power supply unit <NUM>, a timing control board <NUM>, or a driver <NUM>. The electronic component can be fastened to the spacer <NUM>. Further, the heat of the electronic component may have a negative effect on the display panel <NUM>. However, the electronic component can be separated from the flat portion <NUM> of the module cover <NUM>, because the electronic component is fastened to the spacer <NUM>. Thus, the display panel <NUM> can be prevented from being damaged by the heat generated from the electronic component.

Referring to <FIG>, the back cover <NUM> can be coupled with the rigid bar <NUM> and the module cover <NUM>. When the back cover <NUM> is coupled with the rigid bar <NUM> and the module cover <NUM>, the flat portion <NUM> and the back cover <NUM> form the back surface of the display device <NUM>. The coupling portion <NUM>, the rigid bar <NUM>, the auxiliary rigid bar <NUM>, the power supply unit <NUM>, the timing control board <NUM> or the driver <NUM> are positioned between the module cover <NUM> and the back cover <NUM>.

The back cover <NUM> may include a cover plate <NUM> and lateral walls extending forward from the cover plate <NUM>. The cover plate <NUM> may be disposed to be spaced apart from the module cover <NUM> and face the coupling portion <NUM>.

The back cover <NUM> may include a first lateral wall <NUM> extending from the top of the cover plate <NUM> toward the module cover <NUM>. A first latch <NUM> for fastening the back cover <NUM> and the rigid bar <NUM> may be formed on the first side wall <NUM>. The first latch <NUM> protrudes from the inner surface of the first lateral wall <NUM>. The first latch <NUM> may include a plurality of first latches <NUM> formed along the longitudinal direction of the first lateral wall <NUM>.

Further, the back cover <NUM> may include an inner surface 30a and an outer surface 30b. The inner surface 30a of the back cover <NUM> faces the module cover <NUM>, and the outer surface 30b of the back cover <NUM> faces rearward of the display device <NUM>. The inner surface 30a of the back cover <NUM> also covers at least a part of the module cover <NUM>, and the outer surface 30b includes an outer surface of the cover plate <NUM> and an outer surface of the lateral walls <NUM> and <NUM>. The inner surface 30a may include an inner surface of the cover plate <NUM> and an inner surface of the lateral walls <NUM> and <NUM>. The first latch <NUM> may also protrude from the inner surface 30a of the back cover <NUM>.

When the back cover <NUM> is coupled with the module cover <NUM>, the rear surface of the module cover <NUM> and the inner surface 30a of the back cover <NUM> form a space. As discussed above, the space formed by the back cover <NUM> and the module cover <NUM> accommodates the rigid bar <NUM>, the auxiliary rigid bar <NUM>, the guide supporter <NUM>, the power supply unit <NUM>, the timing control board <NUM>, and the driver <NUM>.

In addition, the first latch <NUM> includes a guide surface 31A for guiding the press-fitting of the first latch <NUM> and a constraint surface 31B for fixing the first latch <NUM> in the first receiving portion <NUM>. The guide surface 31A may have a certain curvature or a certain angle so that the first latch <NUM> of the back cover <NUM> can easily guide the first latch <NUM> into the first receiving portion <NUM>. Further, the constraint surface 31B allows the first latch <NUM> to be press-fitted and restrained to the lateral plate <NUM> where the first receiving portion <NUM> is located. The constraint surface 31B is also in close contact with the first receiving opening <NUM> of the lateral plate <NUM> of the rigid bar <NUM>. Thus, the first latch <NUM> can be firmly fixed in the first receiving portion <NUM>. Also, the angle formed by the constraint surface 31B and the guide surface 31A may be an acute angle.

In addition, the rigid bar <NUM> may include a plurality of first receiving portions <NUM> corresponding to the plurality of first latches <NUM> of the back cover <NUM>. When the rigid bar <NUM> and the back cover <NUM> are fastened together, the first latch <NUM> passes through or is fitted in the lateral plate <NUM>.

The back cover <NUM> also includes a second lateral wall <NUM> protruding toward the module cover <NUM> from the left or right side of the cover plate <NUM>. A second latch <NUM> for fastening the back cover <NUM> and the module cover <NUM> may also be formed on the second lateral wall <NUM>. The second latch <NUM> protrudes from the inner surface of the second lateral wall <NUM> and may include a plurality of second latches <NUM>. The plurality of second latches <NUM> are positioned along the longitudinal direction of the second lateral wall <NUM>. In more detail, the longitudinal direction of the second lateral wall <NUM> is the vertical direction, and the lengthwise direction of the second lateral wall <NUM> is parallel to the lengthwise direction of the auxiliary rigid bar <NUM>.

Further, the second latch <NUM> may include a fastening latch 32A and a guide latch 32B. The fastening latch 32A and the guide latch 32B can be disposed spaced apart from each other. The guide latch 32B may be located below the fastening latch 32A. For example, the guide latch 32B may be positioned adjacent to the lower side of the fastening latch 32A. The guide latch 32B guides the fastening latch 32A to the second receiving portion <NUM>, and the fastening latch 32A can be fastened or fixed to the second receiving portion <NUM> of the module cover <NUM>.

The fastening latch 32A may include a first part 32A1 and a second part 32A2. In more detail, the first part 32A1 is extended from the inner surface 30a of the back cover <NUM> and protrudes towards the module cover <NUM>. The second part 32A2 is bent and extended from the first part 32A1 and protrudes upwards. The second part 32A2 may also protrude towards the first lateral wall <NUM>. A protruding direction of the second part 32A2 may be opposite to a protruding direction of the first latch <NUM>.

In addition, the coupling portion <NUM> may include a plurality of second receiving portions <NUM> corresponding to the plurality of second latches <NUM> of the back cover <NUM>. When the back cover <NUM> is coupled with the module cover <NUM>, the second latch <NUM> penetrates through the coupling portion <NUM>.

The second receiving portion <NUM> may include a receiving hole 42A and a guide hole 42B. Thus, the fastening latch 32A of the second latch <NUM> can be inserted or fixed or accommodated in the receiving hole 42A. The fastening latch 32A can also be coupled with the receiving hole 42A via hooking. For example, the second part 32A2 of the fastening latch 32A can be hooked with the receiving hole 42A, and the guide latch 32B of the second latch <NUM> can be inserted into the guide hole 42B.

Further, "I" of <FIG> shows a partially enlarged view of the second receiving portion <NUM> viewed at the rear of the module cover <NUM>, and "II" of <FIG> shows a partially enlarged view of the second receiving portion <NUM> viewed at the front of the module cover <NUM>. The second receiving portion <NUM> may further include a hemming portion 42D positioned on a front side of the coupling portion <NUM>. In particular, the hemming portion 42D improves the workability of the assembling or disassembling process of the second latch <NUM>. Further, the hemming portion 42D can be formed by bending a part of the coupling portion <NUM> toward the display panel <NUM> and upward.

In addition, the receiving hole 42A may be formed by bending the part of the coupling portion <NUM>. The hemming portion 42D protrudes upward and may protrude towards the first lateral wall <NUM>. The hemming portion 42D may be located on an circumference of the receiving hole 42A. For example, the hemming portion 42D can be positioned above the receiving hole 42A. Further, the hemming portion 42D is in correspondence to the second part 32A of the fastening latch 32A, and thus the second part 32A of the fastening latch 32A can be coupled with the hemming portion 42D. The hemming portion 42D therefore serves as a latching jaw so that the fastening latch 32A can be fastened to the receiving hole 42A.

In addition, the second receiving portion <NUM> may further include a rib portion 42C formed to protrude forward from the periphery of the guide hole 42B. The rib portion 42C protrudes towards the display panel <NUM> and has a shape of a cylinder with a hollow portion. The rib portion 42C can thus accommodate the second latch <NUM>. For example, the rib portion 42C can accommodate the guide latch 32B.

Further, the second part 32A2 of the fastening latch 32A may be referred to as a head 32A2 of the fastening latch 32A. In more detail, the head 32A2 of the fixed latch 32A is a fixed projection with a hook shape having an arrow-shaped cross section in one direction or in both directions. The head 32A2 can be press-fitted and fixed in the receiving hole 42A, and the guide latch 32B can be press-fitted into the guide hole 42B, and guide the position of the receiving hole 42A into which the fastening latch 32A is to be press-fitted.

In addition, the head 32A2 of the fastening latch 32A or a portion of the guide latch 32B can be disposed to penetrate the coupling portion <NUM>. The head 32A2 of the fastening latch 32A or the portion of the guide latch 32B can thus be disposed in a second space IS2 formed by the coupling portion <NUM>.

Further, the first latch <NUM> of the back cover <NUM> can be coupled with the first receiving portion <NUM> of the rigid bar <NUM>, and the second latch <NUM> of the back cover <NUM> can be coupled with the second receiving portion <NUM> of the module cover <NUM>. The back cover <NUM> thus can stably be fastened to the rigid bar <NUM> and the module cover <NUM>. Also, the electronic component disposed on the rear surface of the module cover <NUM> can be protected safely. This is advantageous because a separate fastening member for fastening the back cover <NUM> and the rigid bar <NUM> is not necessary. Further, a separate fastening member for fastening the back cover <NUM> and the module cover <NUM> is not required.

In addition, the back cover <NUM> may include a plurality of heat dissipation openings <NUM> formed in the first lateral wall <NUM>. In more detail, the heat dissipation openings <NUM> can be formed through the first lateral wall <NUM>. Thus, heat generated from the electronic components disposed between the back cover <NUM> and the module cover <NUM>, escapes outside through the heat dissipation opening <NUM>.

Further, the first lateral wall <NUM> may include a matrix including a first structure <NUM> arranged in a first direction at regular intervals and a second structure <NUM> arranged in a second direction at certain intervals. The first structures <NUM> cross the second structures <NUM>, and the heat dissipation openings <NUM> are surrounded by the first structure <NUM> and the second structure <NUM>.

The foregoing embodiments are merely examples and are not to be considered as limiting the present disclosure.

Claim 1:
A display device (<NUM>), comprising:
a display panel (<NUM>);
a module cover (<NUM>) disposed at a rear of the display panel (<NUM>);
a rigid bar (<NUM>) coupled with a rear surface of the module cover (<NUM>), the rigid bar (<NUM>) elongated along a side of the display panel (<NUM>) and coupled with a coupling portion (<NUM>) of the module cover (<NUM>); and
a back cover (<NUM>) disposed at a rear of the module cover (<NUM>) and covering the rigid bar (<NUM>),
wherein the back cover (<NUM>) includes:
an outer surface (30b) facing a rear of the back cover (<NUM>);
an inner surface (30a) facing the module cover (<NUM>); and
a latch (<NUM>) that protrudes from the inner surface (30a),
wherein the rigid bar (<NUM>) includes a fastening plate (<NUM>) facing the coupling portion (<NUM>) and spaced apart from the coupling portion (<NUM>); a lateral plate (<NUM>) bent toward the module cover (<NUM>) from the fastening plate (<NUM>); and a flange (<NUM>) formed on the fastening plate (<NUM>) or the lateral plate (<NUM>), the lateral plate (<NUM>) including a receiving portion (<NUM>), the fastening plate (<NUM>) disposed parallel to the coupling portion (<NUM>) or a flat portion (<NUM>) of the module cover (<NUM>),
wherein the latch (<NUM>) is inserted into the receiving portion (<NUM>) of the lateral plate (<NUM>).