JP4886891B1 - Display device - Google Patents

Abstract

An object of the present invention is to provide a display device that realizes a simple structure by reducing the number of parts, has good assembly workability, and is inexpensive. In addition, a display device with high designability is provided by enabling narrowing of the periphery of the liquid crystal cell.
A display panel assembly mounting area and a speaker mounting area are formed in a back cabinet having an opening. In the display panel assembly 100 configured to incorporate a member for displaying an image in a space formed by the front bezel 102 and the back chassis, the display panel assembly mounting region is closed by the engaging means and / or the fastening means. Mounted on. The speaker panel member 500 is mounted so as to block only the speaker mounting region, and the front bezel 102, the back cabinet 200, and the speaker panel member 500 of the display panel assembly 100 constitute a housing of the display device.
[Selection] Figure 1

Description

  The present invention relates to a display device such as a monitor for displaying video and a television receiver.

  In recent years, thin display devices including a liquid crystal cell having a depth dimension smaller than a height dimension and a width dimension have become mainstream. Such a thin display device is provided with a circuit board for supplying power, a circuit board for controlling an externally input signal to display an image on the liquid crystal cell, and the like. Various devices have been devised in order to simplify the display, to make the display device lighter, thinner, or to improve the design.

  For example, in Patent Document 1, a member that displays an image with a reinforcing plate as a reference is provided in a front cabinet provided with a display window and a back cabinet disposed behind the front cabinet. The display panel assembly built in the space formed by the bezel and the back chassis and a structure that attaches and integrates various circuit boards are mounted to reduce the number of assembly steps of the display device and reduce the thickness of the display device. The contents are described.

  Further, in Patent Document 2, a display panel assembly, various substrates, and all internal components including speakers are attached after mounting a display panel assembly, a front cabinet and a back cabinet, and the display device is assembled and maintained. The contents of realizing the simplification and further simplifying the shapes of the front cabinet and the back cabinet are described.

JP 2000-315054 A JP 2007-163861 A

  According to the structure of Patent Literature 1 and Patent Literature 2, it is possible to improve the assembly workability by attaching and integrating a part or all of the internal components constituting the display device to the reinforcing plate or the chassis. Since parts such as a reinforcing plate and a chassis are required to integrate the internal components, the number of parts increases as a result. In addition, the front cabinet and the back cabinet are formed in a size that allows the internal components integrated with the reinforcing plate or the chassis to be mounted. Particularly, the front cabinet located on the front side of the display panel is mounted on the back side. Since it depends on the size of the cabinet, it is difficult to reduce the width dimension at the peripheral portion of the liquid crystal cell.

  The present invention has been made in view of the above-described points, and it is an object of the present invention to provide a display device that realizes a simple structure by reducing the number of parts, has good assembly workability, and is inexpensive. It is another object of the present invention to provide a display device having a high design property that enables narrowing of the frame by reducing the width of the periphery of the liquid crystal cell.

The display device according to claim 1 includes a back cabinet having an opening, a liquid crystal cell, a member that displays an image including a light source, a frame-shaped front bezel, and a back chassis having an opening. A display device comprising a display panel assembly unitized so as to incorporate a member for displaying the image in a space formed by the back chassis, and a substrate including a power supply circuit and a control circuit as main components. A rib extending from the periphery of the opening of the back cabinet toward the opening side, and an engagement hook is formed inward from the rib, and the back surface of the display panel assembly is formed on the back side of the rib. side peripheral edge provided with a step in contact with, the peripheral edge portion of the front bezel constituting a frame shape provided with a groove engaging hook formed on the rib is engaged Region excluding the portion contacting with the step of the said back chassis, and / or, wherein in a region inside than the step of the back cabinet, provided the substrate mounting portion for mounting said substrate, a front bezel of the display panel assembly A housing is constituted by the back cabinet.

According to a second aspect of the present invention, there is provided a display device comprising: a back cabinet having an opening; a member for displaying an image including a liquid crystal cell and a light source; a frame-shaped front bezel; and a back chassis having an opening. A display device comprising a display panel assembly unitized so as to incorporate a member for displaying the image in a space formed by a bezel and the back chassis, and a substrate including a power supply circuit and a control circuit. A rib extending from the periphery of the opening of the back cabinet toward the opening side is provided, and a step on the back side of the display panel assembly is provided on the back side of the rib . a the step vicinity and inside than the step, the more rear side of the back cabinet back cabinets Forming a hole for inserting the screw into the inner surface side of the back chassis of the display panel assembly is inserted through the hole from the rear side of the back cabinet after mounting the display panel assembly on the back cabinet A board mounting portion for mounting the board in a region excluding a portion contacting the step of the back chassis, and / or a region inside the step of the back cabinet, provided with a screw hole into which a screw is screwed. And a housing is constituted by the front bezel of the display panel assembly and the back cabinet.

According to a third aspect of the present invention, there is provided a display device comprising: a back cabinet having an opening; a member for displaying an image including a liquid crystal cell and a light source; a frame-shaped front bezel; and a back chassis having an opening. A display device comprising a display panel assembly unitized so as to incorporate a member for displaying the image in a space formed by a bezel and the back chassis, and a substrate including a power supply circuit and a control circuit. A rib extending from the periphery of the opening of the back cabinet toward the opening side, an engagement hook is formed from the rib inward, and the display panel assembly is formed on the back side of the rib. the rear-side peripheral edge provided with a step in contact with, the groove portion at the peripheral portion of the front bezel constituting a frame shape engaging hook formed on the rib is engaged Provided, further wherein a the step near the back cabinet, and the inner side than the step to form a hole for inserting the screw from the rear side of the back cabinet to the inner surface of the back cabinet, the display panel assembly the back chassis, the screw hole screw inserted through the hole from the rear side of the back cabinet after mounting the display panel assembly on the back cabinet is screwed is provided, on the step of the back chassis A substrate mounting portion for mounting the substrate is provided in a region excluding a contact portion and / or a region inside the step of the back cabinet, and a housing is formed by the front bezel of the display panel assembly and the back cabinet. It is characterized by comprising.

A display device according to a fourth aspect is the display device according to any one of the first to third aspects, wherein the back cabinet includes a display panel assembly whose periphery of the opening is surrounded by ribs. A display panel assembly mounting area for mounting a speaker panel and a speaker mounting area for mounting a speaker for outputting sound separately from the display panel assembly mounting area, and a speaker panel for closing only the speaker mounting area together with the back cabinet A display panel assembly is attached to the display panel assembly mounting region, the speaker panel member is mounted to the speaker mounting region, and the display panel assembly front bezel, the back cabinet, and the speaker panel member are used to mount the display panel assembly. Make up body It is characterized by a door.

  According to the configuration of the present invention as described above, the display device casing is configured by the front bezel and the back cabinet of the display panel assembly or the speaker panel member that covers only the front bezel, the back cabinet, and the speaker region. Thus, the front cabinet that is required as a member constituting the casing of the display device is not necessary. As a result, a simple structure in which only the display panel assembly (and the speaker panel member) is attached to the back cabinet can be realized, and the assembly workability can be improved and an inexpensive display device can be provided. Further, since the front bezel of the display panel assembly directly becomes the width of the peripheral edge of the liquid crystal cell in the display device, the peripheral edge of the liquid crystal cell can be narrowed, and a display device with high design can be provided.

The front side disassembled perspective view of the display apparatus in the Example of this invention. Schematic which shows the display panel assembly attachment area | region and speaker attachment area | region of the back cabinet in the Example of this invention. 1 is a partially enlarged perspective view of a display panel assembly in an embodiment of the present invention. The partial expansion perspective view of the back cabinet in the Example of this invention. The disassembled perspective view which shows the structure of the display panel assembly in the Example of this invention. The back side disassembled perspective view of the display apparatus in the Example of this invention. The disassembled perspective view which shows the speaker attachment area | region vicinity in the Example of this invention.

  Hereinafter, an embodiment as the best mode for carrying out the present invention will be described with reference to FIGS. It should be noted that the present invention can be easily applied to configurations other than those described in the embodiments without departing from the spirit of the present invention.

  FIG. 1 is an exploded perspective view of a front side of a display device according to an embodiment of the present invention, FIG. 2 is a schematic view showing a display panel assembly mounting area and a speaker mounting area of a back cabinet in the embodiment of the present invention, and FIG. FIG. 4 is a partially enlarged perspective view of a back cabinet according to an embodiment of the present invention, and FIG. 4 is a partially enlarged perspective view of a display panel assembly in the embodiment. In the figure, reference numeral 100 denotes a display panel assembly, 200 denotes a back cabinet, 400 denotes a speaker, and 500 denotes a speaker panel member that closes a region where the speaker is attached. In this embodiment, the display panel assembly is attached to the back cabinet 200. An area for attaching 100 (hereinafter referred to as display panel assembly attachment area 210) and an area for attaching speaker 400 (hereinafter referred to as speaker attachment area 211) are formed. The display panel assembly 100 is directly attached from the opening so as to close the display panel assembly attachment region 210 of the back cabinet 200.

  The attachment means of the display panel assembly 100 in the present embodiment will be described in detail. The engagement hooks 202, inward from the ribs 201, 201, 201 located at the periphery of the opening in the display panel assembly attachment region 210 of the back cabinet 200. .. Are extended, and groove portions 101, 101,... That engage with the engaging hooks 202, 202,. Further, a step 212 is provided on the back side of the ribs 201, 201, 201, and the step 212 is brought into contact with a peripheral edge on the back side of the display panel assembly 100 attached to the back cabinet 200, and the display to the back cabinet 200 is performed. It plays a role as a positioning and mounting portion of the panel assembly 100. .. The display panel assembly 100 is attached to the display panel assembly mounting region 210 of the back cabinet 200 so that the engagement hooks 202, 202,... Engage with the grooves 101, 101,.

  Further, holes 205, 205,... Through which screws can be inserted are formed on the back side of the back cabinet 200, and screw holes 108, 108,... Are screwed into the back side of the display panel assembly 100.・ Established. After the display panel assembly 100 is mounted on the display panel assembly mounting area 210 of the back cabinet 200, screws are inserted through the holes 205, 205,.

  In this embodiment, as means for attaching the display panel assembly 100 to the back cabinet 200, engaging means by the groove portion 101 and the engaging hook 202 and fastening means by screws are used, but the engaging means or the fastening means is used. The display panel assembly 100 may be attached to the back cabinet 200 using any one of the means. In particular, if the screen size is a display device of 40 inches or more, it is desirable to use both the engagement means and the fastening means. Conversely, if the display size is 19 inches or less, the engagement means Alternatively, any one of the fastening means is sufficient. As described above, the means for attaching the display panel assembly 100 to the back cabinet 200 is not particularly limited, and may be appropriately selected according to the size and weight of the display device.

  FIG. 5 is an exploded perspective view showing the configuration of the display panel assembly in the embodiment of the present invention. In the figure, reference numeral 102 denotes a front bezel, 103 denotes a liquid crystal cell for displaying an image, 104 denotes a light source that transmits light from the rear side of the liquid crystal cell 103, 105 denotes a back chassis, and 106 denotes light emitted from the light source 104. A light guide plate 107 for receiving the light from the end surface and uniformly illuminating the screen, 107 represents a middle frame for fixing the light guide plate 106 together with the back chassis 105, and is a space formed by the front bezel 102 and the back chassis 105. Inside, a member for displaying an image including the liquid crystal cell 103 and the light source 104 is attached.

  FIG. 6 is an exploded perspective view of the back side of the display device in the embodiment of the present invention. Reference numeral 301 in the figure is a substrate including a power supply circuit for supplying power to the display device (hereinafter simply referred to as a power supply substrate), and 302 is for controlling signals input from the outside and displaying them on the display unit. A board including a control circuit (hereinafter simply referred to as a control board) is shown. In this embodiment, a power supply board 301 and a control board 302 are attached to the back chassis 105 of the display panel assembly 100. That is, the board attachment portions 109, 109,... For attaching the substrates to the back chassis 105 of the display panel assembly 100 are formed, and the power supply substrate 301 and the control board 302 are attached to the substrate attachment portions 109, 109,. In this state, the display panel assembly 100 is attached to the back cabinet 200, so that the assembly work of the display device can be simplified. The mounting of the power supply board 301 and the control board 302 is not limited to the configuration of the present embodiment. For example, the board mounting portions 109, 109,... It is good also as a structure. In this case, the object to be attached is merely changed from the display panel assembly 100 to the back cabinet 102, and the workability during assembly is not greatly affected. In this embodiment, the power supply circuit and the control circuit are described as separate substrates. However, the power supply circuit and the control circuit may be combined into one substrate.

  FIG. 7 is an exploded perspective view showing the vicinity of the speaker mounting area in the embodiment of the present invention. In the drawing, reference numeral 400 denotes a speaker for outputting sound, and 500 denotes a speaker panel member that closes the speaker attachment area 211. In this embodiment, the speaker attachment area 211 is formed below the back cabinet 200, A speaker mounting portion 203 for mounting the speaker 400 is provided in the speaker mounting area 211. After the speaker 400 is attached to the speaker attachment portion 203 by screws or the like, the speaker panel member 500 that closes the speaker attachment region 211 is attached. In this embodiment, the speaker panel member 500 is attached by screws. That is, holes 206 and 206 into which screws can be inserted are formed on the back side of the back cabinet 200, and bosses 501 and 501 into which the screws are screwed are provided on the back side of the speaker panel member 500. Then, after the speaker panel member 500 is attached to the speaker attachment region 211 of the back cabinet 200, screws are inserted through the holes 206 and 206 and fastened (see FIG. 6).

  In this embodiment, a speaker mounting area 211 to which a speaker is mounted is formed separately from the display panel assembly mounting area 210 to which the display panel assembly 100 of the back cabinet 200 is mounted, and the speaker that closes the front side of the speaker mounting area 211 is formed. Although the panel member 500 is provided, for example, the speaker 400 may be provided in the display panel assembly attachment region 210. In this case, the speaker panel member 500 is not necessary, but it is preferable to form a fine hole in the back cabinet 200 for outputting the output sound of the speaker 400 to the outside of the display device.

  As mentioned above, although one Example of this invention was explained in full detail, this invention is not limited to the said Example, A various deformation | transformation implementation is possible within the range of the main point of this invention.

100 Display panel assembly 101 Groove portion 102 Front bezel 103 Liquid crystal cell 104 Light source 105 Back chassis 106 Light guide plate 107 Middle frame 108 Screw hole 109 Substrate attachment portion 200 Back cabinet 201 Rib 202 Engagement hook 203 Speaker attachment portion 204 Hole 205 Hole 210 Display panel Assembly mounting area 211 Speaker mounting area 212 Step 301 Power supply board 302 Control board 400 Speaker 500 Speaker panel member 501 Boss

Claims (4)

A back cabinet having an opening, a member for displaying an image including a liquid crystal cell and a light source, a frame-shaped front bezel, and a back chassis having an opening, in a space formed by the front bezel and the back chassis A display panel assembly unitized so as to incorporate a member for displaying the image and a substrate including a power supply circuit and a control circuit as main constituent members, from the periphery of the opening of the back cabinet A rib extending toward the opening side is formed, an engagement hook is formed inward from the rib, and a step is provided on the back side of the rib so that the peripheral edge on the back side of the display panel assembly abuts. the peripheral portion of the front bezel constituting a frame shape provided with a groove engaging hook formed on the rib is engaged, the said back chassis Region excluding the portion contacting the difference, and / or, in the inner region than the step of the back cabinet, the board mounting portion for mounting said substrate is provided, by the back cabinet front bezel of the display panel assembly A display device comprising a housing. A back cabinet having an opening, a member for displaying an image including a liquid crystal cell and a light source, a frame-shaped front bezel, and a back chassis having an opening, in a space formed by the front bezel and the back chassis A display panel assembly unitized so as to incorporate a member for displaying the image and a substrate including a power supply circuit and a control circuit as main constituent members, from the periphery of the opening of the back cabinet A rib extending toward the opening side is formed, and a step is formed on the back side of the rib so that the peripheral edge on the back side of the display panel assembly is in contact with, near the step of the back cabinet and from the step . A hole through which the screw is inserted from the back side of the back cabinet to the inner side of the back cabinet. The back chassis of the display panel assembly is provided with a screw hole into which a screw inserted through the hole from the back side of the back cabinet after the display panel assembly is attached to the back cabinet. A substrate mounting portion for mounting the substrate is provided in a region excluding a portion contacting the step of the back chassis and / or a region inside the step of the back cabinet, and a front bezel of the display panel assembly is provided. A display device comprising a casing by the back cabinet. A back cabinet having an opening, a member for displaying an image including a liquid crystal cell and a light source, a frame-shaped front bezel, and a back chassis having an opening, in a space formed by the front bezel and the back chassis A display panel assembly unitized so as to incorporate a member for displaying the image and a substrate including a power supply circuit and a control circuit as main constituent members, from the periphery of the opening of the back cabinet A rib extending toward the opening side is formed, an engagement hook is formed inward from the rib, and a step is provided on the back side of the rib so that the peripheral edge on the back side of the display panel assembly abuts. A groove portion that engages with an engagement hook formed on the rib is provided in a peripheral portion of the front bezel that forms a frame shape, and the back cavity is further provided. A the step near the Tsu bets, and the inside than the step, the holes are formed for inserting the screw from the rear side of the back cabinet to the inner surface of the back cabinet, the back chassis of the display panel assembly A screw hole into which a screw inserted through the hole is screwed from the back side of the back cabinet after the display panel assembly is attached to the back cabinet is provided, and a portion that contacts the step of the back chassis is excluded. A substrate mounting portion for mounting the substrate is provided in a region and / or a region inside the step of the back cabinet, and a housing is configured by the front bezel of the display panel assembly and the back cabinet. Characteristic display device. The back cabinet is integrated with a display panel assembly mounting area for mounting a display panel assembly whose periphery of the opening is surrounded by ribs, and a speaker mounting area for mounting a speaker for outputting sound separately from the display panel assembly mounting area. Forming a speaker panel member that closes only the speaker attachment region together with the back cabinet, attaching the display panel assembly to the display panel assembly attachment region, attaching the speaker panel member to the speaker attachment region, 4. The display device according to claim 1, wherein a housing is constituted by the front bezel, the back cabinet, and the speaker panel member of the display panel assembly. 5.

Images