KR102568667B1 - Display device - Google Patents

Abstract

In a cinema-type display device, a liquid crystal panel that selectively outputs color for each pixel in order to minimize screws for fixing the rear cover and to prevent light leakage due to external force on the rear cover, and to the back of the liquid crystal panel. A panel guide including a backlight unit for emitting light, a cover bottom covering a rear surface of the backlight unit, a seating portion on which the circumference of the rear surface of the liquid crystal panel is seated, and a sidewall portion covering side surfaces of the liquid crystal panel and the cover bottom; Provided is a display device including a back plate covering the rear surface of the cover bottom and a rear cover portion including a cover hook provided around the back plate, and a holder coupled to the circumference of the rear surface of the cover bottom and detachable from the cover hook. do.

Description

Display device {DISPLAY DEVICE}

The present invention relates to a display device, and more specifically, to a structure in which a rear cover of a display device can be detached without a screw in a cinema-type liquid crystal module (LCM), and a display that minimizes light leakage caused by external force during disassembly. It's about the device.

A display device is a device that visually displays data, and includes liquid crystal displays, electrophoretic displays, organic light emitting displays, and inorganic EL displays. , field emission displays, surface-conduction electron-emitter displays, plasma displays, and cathode ray displays.

Among them, in particular, liquid crystal displays (LCDs) have recently been in the limelight due to advantages such as mass production technology, ease of driving means, and realization of high-quality spherical and large-area screens.

Such a liquid crystal display device (LCD) is an electronic device that converts various electrical information generated from various devices into visual information by using a change in liquid crystal transmittance according to an applied voltage and transmits it. A liquid crystal display device is widely used as an alternative means capable of overcoming the disadvantages of a conventional CRT (Cathode Ray Tube) because it can implement low-power driving, a thin structure, and excellent image quality.

Such a liquid crystal display device may largely include a liquid crystal panel and a backlight unit. The liquid crystal panel controls the amount of transmitted light to display an image, and the backlight unit is used as a dimming device that uniformly radiates light to the entire liquid crystal panel.

The liquid crystal panel and the backlight unit may be assembled together with case members fixing them to implement a liquid crystal module (LCM). The case member may include a guide panel, a cover bottom, a case top, and the like.

Recently, in order to design a light weight and thin liquid crystal display device with a liquid crystal module (LDM), a cinema type that makes the guide panel appear is preferred. The cinema type has a structure in which a guide panel forms an exterior without having a case top covering the guide panel.

However, recently, in order to prevent the rear view of the display device from looking messy by the screw, various attempts have been made to minimize the screw fixing the rear cover in the cinema type liquid crystal module (LDM).

An object of the present invention is to provide a display device capable of attaching and detaching a rear cover of a display device from a cinema-type liquid crystal module (LCM) without a screw.

In addition, an object of the present invention is to provide a display device that prevents light leakage between a liquid crystal panel and a guide panel due to an external force acting on the guide panel in the process of attaching and detaching the rear cover.

In addition, an object of the present invention is to prevent the gap between the rear cover and the cover bottom from being exposed to the outside in a state in which the rear cover is coupled.

In addition, an object of the present invention is to provide a display device capable of easily attaching and detaching the rear cover while preventing the gap between the rear cover and the cover bottom from being exposed to the outside in a state in which the rear cover is coupled.

In addition, an object of the present invention is to prevent the detachable structure of the rear cover from being easily damaged, and to provide a display device in which the detachable structure of the rear cover is replaceable.

In addition, an object of the present invention is to provide a display device capable of dispersing external force by the rear cover in a coupled state, in which a structure for attaching and detaching the rear cover is easily coupled.

According to an embodiment of the present invention for solving the above problems, a liquid crystal panel that selectively outputs color for each pixel, a backlight unit that emits light to the rear surface of the liquid crystal panel, a cover bottom covering the rear surface of the backlight unit, A panel guide including a mounting portion on which the rear periphery of the liquid crystal panel is seated and a side wall portion covering side surfaces of the liquid crystal panel and the cover bottom, a back plate covering the rear surface of the cover bottom, and a cover provided around the back plate It provides a display device including a rear cover portion including a hook, and a holder coupled to the rear surface of the cover bottom and detachable from the cover hook.

In addition, according to another embodiment of the present invention, the panel guide extends from the end of the side wall portion in the rear direction to cover the boundary between the rear cover portion and the cover bottom. Display characterized in that it further comprises a side shield provide the device.

In addition, according to another embodiment of the present invention, the side shield provides a display device characterized in that it comprises an inner chamber (chamfer) at the end.

In addition, according to another embodiment of the present invention, the cover hook includes an extension portion bent in a front direction around the back plate and extending, and an insertion portion bent inwardly at an end of the extension portion, and the holder provides a display device characterized in that it has an inlet portion into which the insertion portion is inserted on the outer surface of the holder opposite to the insertion portion.

In addition, according to another embodiment of the present invention, the holder further includes a holder screw that penetrates the holder and is fixed to the cover bottom, and the cover bottom protrudes from a rear surface to support one side of the holder. It provides a display device characterized in that it further comprises.

In addition, according to another embodiment of the present invention, the holder support provides a display device characterized in that provided with a plurality of spaced apart from one side of the holder.

In addition, according to another embodiment of the present invention, the holder is provided along the upper edge of the rear surface of the cover bottom, and the holder support part provides a display device characterized in that to support the lower side of the holder.

In addition, according to another embodiment of the present invention, the holder further comprises a holder hook on a surface in contact with the rear surface of the cover bottom, and the cover bottom further comprises a hook hole through which the holder hook is detachable. A display device is provided.

In addition, according to another embodiment of the present invention, the holder further includes a holder hook bent in one direction on a surface in contact with the rear surface of the cover bottom, and the cover bottom slides in the one direction with the holder hook inserted therein. It provides a display device characterized in that it further comprises a hook hole coupled to the holder, and a holder support for supporting the side surface of the holder in one direction and the side surface opposite to the one direction of the holder while the holder is coupled.

In addition, according to another embodiment of the present invention, the holder is provided along the rear side edge of the cover bottom, the holder support portion provides a display device, characterized in that for supporting the upper and lower sides of the holder .

In addition, according to another embodiment of the present invention, the holder provides a display device characterized in that it further comprises a holder screw that penetrates the holder and is fixed to the cover bottom.

Effects of the display device according to the present invention are described as follows.

According to various embodiments of the present disclosure, the display device may provide a light and thin structure of the display device through a cinema type liquid crystal module (LCM).

According to various embodiments of the present invention, in a cinema-type liquid crystal module (LCM), the rear cover of the display device is detached without a screw, and light leakage due to external force can be prevented.

According to various embodiments of the present invention, the gap between the rear cover and the cover bottom is prevented from being exposed to the outside in a state in which the rear cover is coupled, and at the same time, the rear cover can be easily detached.

According to various embodiments of the present invention, the detachable structure of the rear cover can be easily separated or replaced.

According to various embodiments of the present invention, it is possible to prevent the structure for attaching and detaching the rear cover from being easily damaged by preventing the concentration of external force by the rear cover on the detachable structure.

A further scope of the applicability of the present invention will become apparent from the detailed description that follows. However, since various changes and modifications within the spirit and scope of the present invention can be clearly understood by those skilled in the art, it is understood that the detailed description and specific examples such as preferred embodiments of the present invention are given as examples only. It should be.

1 is a block diagram showing the configuration of a display device according to an embodiment of the present invention.
2 is a schematic cross-sectional view of a display device according to an embodiment of the present invention.
3 is an enlarged cross-sectional view of part A of FIG. 2 .
Figure 4 is a perspective view of the guide panel of Figure 3 viewed from another direction.
5 is an enlarged cross-sectional view of part A of FIG. 2 according to an embodiment of the present invention.
6 is a perspective view of the holder of FIG. 5 viewed from another direction.
7 is a perspective view showing a state in which the holder of FIG. 5 is separated.
FIG. 8 is a cross-sectional view of the holder of FIG. 5 viewed from the direction BB′ of FIG. 6 .
9 is an enlarged cross-sectional view of the coupling structure A of FIG. 2 according to another embodiment of the present invention.
10 is a perspective view of the holder of FIG. 9 viewed from another direction.
FIG. 11 is a cross-sectional view and a partially enlarged view showing a DD' direction section of the holder in FIG. 10;
FIG. 12 is an enlarged partial enlarged view of the holder support portion supporting the holder in FIG. 10 .
13 is a rear view illustrating positions of the holder according to FIG. 5 and the holder according to FIG. 9 .
14 is a view for explaining another embodiment in which the rear cover of the present invention is coupled.

Hereinafter, the embodiments disclosed in this specification will be described in detail with reference to the accompanying drawings, but the same or similar elements are given the same reference numerals regardless of reference numerals, and redundant description thereof will be omitted. The suffixes "module" and "unit" for components used in the following description are given or used together in consideration of ease of writing the specification, and do not have meanings or roles that are distinct from each other by themselves. In addition, in describing the embodiments disclosed in this specification, if it is determined that a detailed description of a related known technology may obscure the gist of the embodiment disclosed in this specification, the detailed description thereof will be omitted. In addition, the accompanying drawings are only for easy understanding of the embodiments disclosed in this specification, the technical idea disclosed in this specification is not limited by the accompanying drawings, and all changes included in the spirit and technical scope of the present invention , it should be understood to include equivalents or substitutes.

A display device according to an embodiment of the present invention is, for example, an intelligent display device in which a computer support function is added to a broadcast reception function, and an Internet function is added while being faithful to a broadcast reception function, such as a handwriting input device, a touch screen or A more user-friendly interface such as a space remote controller can be provided. In addition, by being connected to the Internet and a computer by supporting a wired or wireless Internet function, it is possible to perform functions such as e-mail, web browsing, banking, or game. A standardized universal OS can be used for these various functions.

Accordingly, since various applications can be freely added or deleted in the display device described in the present invention, for example, on a general-purpose OS kernel, various user-friendly functions can be performed. The display device may be, for example, a network TV, an HBBTV, a smart TV, an LED TV, an OLED TV, and the like, and may also be applied to a smartphone in some cases.

1 is a block diagram illustrating the configuration of a display device 100 according to an embodiment of the present invention.

Referring to FIG. 1, the display device 100 includes a broadcast receiving module 130, an external device interface 135, a memory 140, a user input interface 150, a controller 170, a wireless communication module 173, A display module 180, an audio output module 185, and a power supply module 190 may be included.

The broadcast reception module 130 may include a tuner 131, a demodulator 132 and a network interface 133.

The tuner 131 may select a specific broadcasting channel according to a channel selection command. The tuner 131 may receive a broadcast signal for a selected specific broadcast channel.

The demodulator 132 may separate the received broadcast signal into a video signal, an audio signal, and a data signal related to the broadcast program, and restore the separated video signal, audio signal, and data signal into a form capable of being output.

The external device interface 135 may receive an application or an application list in an adjacent external device and transmit the received application to the memory 140 stored in the controller 170 .

The external device interface 135 may provide a connection path between the display device 100 and an external device. The external device interface 135 may receive at least one of video and audio output from an external device connected to the display device 100 by wire or wirelessly, and transmit the received image to the controller 170 . The external device interface 135 may include a plurality of external input terminals. The plurality of external input terminals may include an RGB terminal, one or more High Definition Multimedia Interface (HDMI) terminals, and component terminals.

An image signal of an external device input through the external device interface 135 may be output through the display module 180 . A voice signal of an external device input through the external device interface 135 may be output through the audio output module 185 .

An external device connectable to the external device interface 135 may be any one of a set-top box, a Blu-ray player, a DVD player, a game machine, a sound bar, a smart phone, a PC, a USB memory, and a home theater, but this is only an example.

The network interface 133 may provide an interface for connecting the display device 100 to a wired/wireless network including an internet network. The network interface 133 may transmit or receive data with other users or other electronic devices through a connected network or another network linked to the connected network.

In addition, some content data stored in the display device 100 may be transmitted to another user pre-registered in the display device 100 or a user selected from among other electronic devices or a selected electronic device.

The network interface 133 may access a predetermined web page through a connected network or another network linked to the connected network. That is, by accessing a predetermined web page through a network, data can be transmitted or received with a corresponding server.

Also, the network interface 133 may receive content or data provided by a content provider or network operator. That is, the network interface 133 may receive content and related information such as movies, advertisements, games, VOD, and broadcast signals provided from content providers or network providers through a network.

In addition, the network interface 133 may receive firmware update information and an update file provided by a network operator, and may transmit data to the Internet or a content provider or network operator.

The network interface 133 may select and receive a desired application among applications open to the public through a network.

The memory 140 stores programs for processing and controlling each signal in the controller 170, and may store signal-processed video, audio, or data signals.

In addition, the memory 140 may perform a function for temporarily storing a video, audio, or data signal input from the external device interface 135 or the network interface 133, and may perform a function for storing a predetermined image through a channel storage function. information can be stored.

The memory 140 may store an application input from the external device interface 135 or the network interface 133 or an application list.

The display device 100 may reproduce and provide content files (video files, still image files, music files, document files, application files, etc.) stored in the memory 140 to the user.

The user input interface 150 may transmit a signal input by a user to the controller 170 or may transmit a signal from the controller 170 to the user. For example, the user input interface 150 may be configured according to various communication methods such as Bluetooth, Ultra-Wideband (WB), ZigBee, Radio Frequency (RF) communication, or Infrared (IR) communication. , Control signals such as power on/off, channel selection, and screen setting may be received and processed from the remote controller 400, or a control signal from the controller 170 may be transmitted to the remote controller 400.

In addition, the user input interface 150 may transfer a control signal input from a local key (not shown) such as a power key, a channel key, a volume key, and a setting key to the controller 170 .

An image signal processed by the controller 170 may be input to the display module 180 and displayed as an image corresponding to the corresponding image signal. Also, an image signal processed by the controller 170 may be input to an external output device through the external device interface 135 .

The audio signal processed by the controller 170 may be output as audio to the audio output module 185 . Also, the voice signal processed by the controller 170 may be input to an external output device through the external device interface 135 .

In addition, the controller 170 may control overall operations within the display device 100 .

In addition, the controller 170 may control the display device 100 according to a user command input through the user input interface 150 or an internal program, and connects to a network to display an application or an application list desired by the user on the display device ( 100) can be downloaded within.

The controller 170 enables the channel information selected by the user to be output through the display module 180 or the audio output module 185 together with the processed video or audio signal.

In addition, the controller 170 receives a video signal from an external device, for example, a camera or camcorder, input through the external device interface 135 according to an external device video playback command received through the user input interface 150. Alternatively, the audio signal can be output through the display module 180 or the audio output module 185.

Meanwhile, the controller 170 may control the display module 180 to display an image, for example, a broadcast image input through the tuner 131 or an external input image input through the external device interface 135. , or an image input through the network interface 133 or an image stored in the memory 140 may be controlled to be displayed on the display module 180 . In this case, the image displayed on the display module 180 may be a still image or a moving image, and may be a 2D image or a 3D image.

In addition, the controller 170 can control content stored in the display device 100, received broadcasting content, or external input content input from the outside to be reproduced, including a broadcast image of the content, an external input image, an audio file, It can be in various forms, such as still images, connected web screens, and wireless files.

The wireless communication module 173 may communicate with an external device through wireless communication. The wireless communication module 173 may perform short range communication with an external device. To this end, the wireless communication module 173 includes Bluetooth™, Radio Frequency Identification (RFID), Infrared Data Association (IrDA), Ultra-Wideband (UWB), ZigBee, Near Field Communication (NFC), Wi -Local communication may be supported using at least one of wireless-fidelity (Fi), Wi-Fi Direct, and wireless universal serial bus (USB) technologies. The wireless communication module 173 may be used between the display device 100 and a wireless communication system, between the display device 100 and other display devices 100, or between the display device 100 through wireless area networks. Wireless communication between the display device 100 and the network where the external server is located may be supported. The local area network may be a local area wireless personal area network (Wireless Personal Area Networks).

Here, the other display device 100 is a wearable device capable of exchanging (or interlocking) data with the display device 100 according to the present invention (for example, a smart watch), smart glasses (smart glass), head mounted display (HMD), and a mobile terminal such as a smart phone. The wireless communication module 173 may detect (or recognize) a communicable wearable device around the display device 100 . Furthermore, if the detected wearable device is a device authorized to communicate with the display device 100 according to the present invention, the controller 170 transmits at least a portion of the data processed by the display device 100 to the wireless communication module 173. It can be transmitted to the wearable device through Accordingly, a user of the wearable device may use data processed by the display device 100 through the wearable device.

The display module 180 converts the video signal, data signal, OSD signal processed by the controller 170 or the video signal, data signal, etc. received from the external device interface 135 into R, G, and B signals, respectively, and converts them into driving signals. can create

On the other hand, since the display device 100 shown in FIG. 1 is only one embodiment of the present invention, some of the illustrated components may be integrated, added, or omitted according to the use of the display device 100 actually implemented. there is.

That is, if necessary, two or more components may be combined into one component, or one component may be subdivided into two or more components. In addition, functions performed in each block are for explaining an embodiment of the present invention, and the specific operation or device does not limit the scope of the present invention.

According to another embodiment of the present invention, the display device 100 does not include a tuner 131 and a demodulator 132, as shown in FIG. 1, and uses a network interface 133 or an external device interface 135. It is also possible to receive and play an image through .

For example, the display device 100 is separated into an image processing device such as a set-top box for receiving broadcast signals or content according to various network services and a content reproducing device that reproduces content input from the image processing device. can be implemented

In this case, a method of operating a display device according to an embodiment of the present invention to be described below includes not only the display device 100 as described with reference to FIG. 1 , but also an image processing device or a display module such as the separated set-top box ( 180) and a content playback device having an audio output module 185.

The above detailed description should not be construed as limiting in all respects and should be considered illustrative. The scope of the present invention should be determined by reasonable interpretation of the appended claims, and all changes within the equivalent scope of the present invention are included in the scope of the present invention.

2 is a schematic cross-sectional view of a display device 100 according to an embodiment of the present invention.

Referring to FIG. 2 , the display device 100 includes a liquid crystal panel 210, a bonding member 220, a panel guide 230, a backlight unit 240, a cover bottom 250, and a rear cover 260. do.

The liquid crystal panel 210 includes a color filter array substrate 212, a TFT array substrate 214, and a liquid crystal layer (not shown) interposed therebetween. In addition, the liquid crystal panel 210 includes a front polarizing member 211 attached to the front surface of the color filter array substrate 212 and the rear surface of the TFT array substrate 214 so that light passing through the liquid crystal panel 210 is cross-polarized. A rear polarizing member 215 is further included.

In the liquid crystal panel 210, liquid crystal pixels constituting a pixel unit are arranged in a matrix form, and an image is formed by selectively adjusting the light transmittance of the liquid crystal pixels according to image signal information transmitted through a driver driving circuit (not shown). will do

The color filter array substrate 212 includes a color filter and a common electrode in which red (R), green (G), and blue (B) pixels are repeatedly formed with the black matrix 213 as a boundary. The common electrode is made of a transparent conductive material such as indium tin oxide (ITO) or indium zinc oxide (IZO).

The black matrix 213 may be provided without pixels around an active area forming an image in the liquid crystal panel 210 to form a bezel area of the liquid crystal panel 210 .

2 shows only the black matrix 213 forming the bezel area. However, since the black matrix 213 forms a boundary between pixels, it is not limited to the bezel area.

The TFT array substrate 214 has a plurality of gate lines and a plurality of data lines formed in a matrix form, and thin film transistors (TFTs) are formed at intersections of the gate lines and the data lines.

The signal voltage transmitted from the driver driving circuit is applied between the pixel electrode and the common electrode of the color filter array substrate 212 through a thin film transistor (TFT), and the liquid crystal between the pixel electrode and the common electrode is aligned according to the signal voltage. This determines the transmittance of light.

The liquid crystal panel 210 may be fixed to the panel guide 230 by the bonding member 220 provided along the circumference of the rear surface.

The bonding member 220 may be provided around the rear surface corresponding to the bezel area of the liquid crystal panel 210 .

In detail, the panel guide 230 may include a mounting portion 231 on which the rear circumference of the liquid crystal panel 210 is seated and a side wall portion 232 covering a side surface of the liquid crystal panel 210 .

The panel guide 230 may wrap the side surface of the liquid crystal panel 210 in a state in which the liquid crystal panel 210 is fixed to form the appearance of the display device 100 .

The structure is a cinema type liquid crystal module (LDM), and the display device 100 surrounds the panel guide 230 and covers the gap between the panel guide 230 and the liquid crystal panel 210 from the front. may not be provided.

A cinema type liquid crystal module (LDM) may have a light leakage problem in that the gap between the panel guide 230 and the liquid crystal panel 210 is exposed on the front side, which is examined together with the structure coupled to the rear cover 260. see.

The backlight unit 240 may include a light source unit 242 that generates light and a light guide plate 241 that provides light generated from the light source unit 242 to the front of the liquid crystal panel 210 .

In addition, the light guide plate 241 is attached to the rear surface of the light guide plate 241 to reflect the light emitted backward to improve the efficiency of light and a reflective sheet (not shown) stacked on the front surface of the light guide plate 241 to prevent the light from being emitted from the light guide plate 241. It may include a plurality of optical sheets (not shown) that scatter emitted light.

The plurality of optical sheets may include a diffusion sheet for diffusing light incident from the light guide plate 241 and a prism sheet for condensing light.

As the material of the light guide plate 241, PMMA (Polymethymethacrylate), which is not easily deformed or broken due to its high strength and has good transmittance, can be used.

In addition, the light guide plate 241 may be provided in a wedge shape with an inclined lower surface and a flat upper surface, or a plate type in which both lower and upper surfaces are parallel.

Here, the light source unit 242 uses any one of a cold cathode fluorescent lamp (CCFL), an external electrode fluorescent lamp (EEEL), and a light emitting diode (LED) element. Here, A case in which a light emitting diode device (LED device) is applied is taken as an example.

The LED device (light source unit 242) is a side viewing type device, and emits light from one side of the light guide plate 241 toward the light incident surface.

The cover bottom 250 covers the rear surface of the backlight unit 240 and may be fixed to the panel guide 230 . 2 , the cover bottom 250 has a rectangular box shape with an open top, and components of the backlight unit 240 can be accommodated therein.

At this time, the panel guide 230 may surround the cover bottom 250 along the side of the cover bottom 250 and fix the cover bottom 250 .

The rear cover part 260 covers the rear surface of the cover bottom 250, and the electrical part (not shown) provided in the display device 100 is accommodated between the cover bottom 250 and the back cover part 260. space can be created.

The rear cover portion 260 may be formed with a thin thickness using electro galvanized steel (EGI).

The rear cover 260 prevents the rear appearance of the display device 100 from being messy, and without screws (or screws for fixing through the rear cover 260 to facilitate attaching and detaching the rear cover 260). by minimizing ) can be fixed.

Hereinafter, a method and structure of combining the rear cover 260 without screws (or by minimizing screws) will be looked at.

3 is an enlarged cross-sectional view of part A of FIG. 2, and FIG. 4 is a perspective view of the guide panel 230 of FIG. 3 viewed from another direction.

The rear cover part 260 may include a back plate 262 covering the rear surface of the cover bottom 250 and a cover hook 261 provided around the back plate 262.

The cover hook 261 may include an extension portion 2612 that is bent in the front direction around the back plate 262 and extends, and an insertion portion 2611 that is bent inward at an end of the extension portion 2612 .

In the rear cover 260, the insert 2611 is hooked and fixed to a latch 233 provided on the panel guide 230, and is detachable from the panel guide 230 by the elasticity of the rear cover 260 itself. It can be.

Specifically, the latch 233 may be provided on the rear edge of the display device 100 (see FIG. 2 ) along the side wall portion 232 of the panel guide 230 .

However, the method and structure of coupling the back cover 260 to the panel guide 230 as shown in FIGS. 3 and 4 may cause a light leakage problem in a display device in which the guide panel 230 is externalized.

Specifically, in the display device in which the guide panel 230 is externalized, a gap between the side wall portion 262 of the guide panel 230 and the side surface of the liquid crystal panel 210 is exposed on the front side.

In this case, as the external force acts on the guide panel 230 in the process of attaching and detaching the rear cover 260, a gap widens, or the bonding member 220 and the guide panel 230 or the bonding member 220 The adhesive portion between the and the liquid crystal panel 210 may come off.

In addition, since the rear cover part 260 provides an external force inward to the rear end of the guide panel 230 in a state coupled to the guide panel 230, it is possible to provide force for widening the front gap.

That is, when the latch 233 for fixing the rear cover 260 is provided at the rear end of the guide panel 230, the external force and the rear cover 260 are detached by the rear cover 260 itself. In the process of doing it, an external force may cause a problem of light leaking through the gap.

In addition, when the latch 233 protrudes outward from the rear end of the side wall portion 232 of the guide panel 230, it can be easily damaged, and when the latch 233 portion is damaged, the guide panel 230 There may be problems with replacing the whole thing.

Accordingly, a structure in which the rear cover 260 is detached from the cover bottom 250 without screws (or by minimizing screws) according to the present invention will be looked at.

5 is an enlarged cross-sectional view of part A of FIG. 2 according to an embodiment of the present invention.

The display device according to the present invention includes a liquid crystal panel 210 that selectively outputs color for each pixel, a backlight unit 240 that emits light to the rear surface of the liquid crystal panel 210, and a backlight unit that covers the rear surface of the backlight unit 240. A panel guide 230 including a cover bottom 250, a mounting portion 231 on which the rear circumference of the liquid crystal panel 210 is seated, and a side wall portion 232 covering the side surfaces of the liquid crystal panel 210 and the cover bottom , the back plate 262 covering the rear surface of the cover bottom 250 and the back cover portion 260 including the cover hook 261 provided around the back plate 262, and the rear circumference of the cover bottom 250 It is coupled to, and may include a holder 270 to which the cover hook 261 is detachable.

The back cover 260 may be detachable from the holder 270 through its own tension. At this time, the holder 270 is provided around the rear surface of the cover bottom 250 to prevent external force generated in the process of attaching and detaching the rear cover 260 from acting on the panel guide 230 .

Looking in detail at the structure in which the rear cover 260 is attached to and detached from the holder 270 through its own tension, the cover hook 261 of the back cover 260 is in the front direction around the back plate 262 It may include an extension part 2612 bent and extended and an insertion part 2611 bent inward at an end of the extension part. At this time, the holder 270 may have an inlet portion 271 into which the insertion portion 2611 is inserted into the outer surface of the holder 270 opposite the insertion portion 2611 . The present invention can prevent the holder 270 from being exposed to the outside through the above structure.

In a state in which the rear cover 260 is coupled to the cover bottom 250 through the holder 270, a gap between the rear cover 260 and the cover bottom 250 may be exposed to the outside.

Accordingly, the panel guide 230 of the present invention extends from the end of the side wall portion 232 toward the rear side and covers the boundary between the rear cover portion 260 and the cover bottom 250. The side shield 234 is further included. can do.

The side shield 234 protrudes in the rear direction at a height corresponding to h1 based on the plane including the rear surface of the cover bottom 250, and covers the boundary between the rear cover 260 and the cover bottom 250 there is.

The side shield 234 may include an inner chamfer 2341 at an end thereof to provide a space in which a user's hand can enter to separate the rear cover 260.

Since the holder 270 provided in the present invention is detachable from the cover bottom 250, the user can easily replace only the holder 270 when the holder 270 part is damaged.

The holder 270 of FIG. 5 has a structure fixed to the cover bottom 250 through a holder screw 280 according to an embodiment of the present invention, and the coupling structure will be reviewed through FIGS. 6 to 8 .

6 is a perspective view of the holder 270 of FIG. 5 viewed from another direction, FIG. 7 is a view showing a separated state of the holder 270 of FIG. 5, and FIG. 8 is a view of the holder 270 of FIG. It is a cross-sectional view showing a cross section viewed from the B-B' direction of Fig. 6.

The holder 270 according to an embodiment of the present invention further includes a holder screw 280 passing through the holder 270 and fixed to the cover bottom 250, and the cover bottom 250 protrudes from the rear surface of the holder ( 270) may further include a holder support part 251 supporting one side.

The holder support 251 can prevent the holder 270 from rotating along the C direction even if the holder 270 is fixed with a single holder screw 280, and in some cases is spaced apart from one side of the holder 270 as shown in FIG. and may be provided with a plurality of them.

The structure in which the holder 270 is fixed to the cover bottom 250 through the holder screw 280 has an advantage in that the holder 270 and the cover bottom 250 can be strongly coupled.

Accordingly, the holder 270 according to an embodiment of the present invention shown in FIG. 5 may be preferably provided along the upper edge of the rear surface of the cover bottom 250 . (See holder 270a in FIG. 13)

In this case, the holder support 251 may protrude from the rear surface of the cover bottom 250 to support the lower side of the holder 270 .

That is, the holder support 251 prevents rotation of the holder 270 coupled through the holder screw 280 and supports the lower side of the holder provided along the upper edge of the rear surface of the cover bottom 250 to prevent the holder screw 280 from rotating. ) It is possible to prevent the weight of the back cover (260, see FIG. 5) from being concentrated.

As shown in FIGS. 7 and 8 , the holder 270 fixed by the holder screw 280 further includes a holder hook 272 on a surface in contact with the rear surface of the cover bottom 250, and the cover port 250 ) may further include a hook hole 252 to which the holder hook 272 is detachable.

The holder hook 272 is also a structure that distributes the weight of the rear cover 260, and can prevent the holder 270 from being damaged.

The holder 270 of FIG. 9 is an enlarged cross-sectional view of portion A of FIG. 2 according to another embodiment of the present invention.

Referring to FIG. 9 focusing on differences from FIG. 5 , FIG. 9 discloses a holder 270 according to another embodiment according to the present invention. Unlike the holder 270 of FIG. 5 , the holder 270 of FIG. 9 may be detached from the cover bottom 250 without a holder screw 280 .

The holder 270 of FIG. 9 has a structure fixed to the cover bottom 250 by slidingly coupling the holder hook 272 (see FIG. 10) to the hook hole 252 (see FIG. 10) according to another embodiment of the present invention. Through 10 to 11, the bonding structure is examined in detail.

10 is a perspective view of the holder 270 of FIG. 9 viewed from another direction, FIG. 11 is a view showing a separated state of the holder 270 of FIG. 9, and FIG. 12 is a view of the holder 270 of FIG. It is a cross-sectional view showing a cross section viewed from the direction D-D' of 10.

The holder 270 according to another embodiment of the present invention further includes a holder hook 272 bent in one direction (E) on a surface in contact with the rear surface of the cover bottom 250, and the cover bottom 250 is a holder hook ( 272) is inserted into the hook hole 252 coupled by sliding in one direction (E) and the side surface 2701 in one direction (E) of the holder 270 and the side surface 2701 in one direction (E) with the holder 270 being coupled. ) may further include a holder support 251 supporting the side surface 2702 opposite to

In the holder 270 according to another embodiment of the present invention, the holder hook 272 is fixed to the cover bottom 250 by the holder support parts 251 on both sides in a state in which the holder hook 272 is slidably coupled to the holder hole 252. Can be fixed on the back.

The holder 270 according to another embodiment of the present invention may be advantageous in that it can be easily coupled in a sliding manner, but the fixing force fixed to the rear surface of the cover bottom 250 may be weak.

Therefore, the holder 270 according to another embodiment of the present invention may be preferably provided along the rear side edge of the cover bottom 250 . This is to prevent the holder 270 from being directly loaded with the load of the rear cover 260 . (See holder 270b in FIG. 13)

In this case, the holder support 251 may support upper and lower sides of the holder 250 .

That is, the holder 270 according to another embodiment of the present invention obtains a holder hook 272 bent in an upward or downward direction, and the holder 270 slides in an upward or downward direction and is coupled to the holder hole 252 It may be fixed by the holder support part 251 supporting the upper side and the lower side.

The holder support part 251 supporting the lower side can prevent the holder 270 from being easily damaged by dispersing an external force acting on the holder hook 272 of the holder 270 .

However, in some cases, the holder 270 according to another embodiment of the present invention may further include a holder screw 280 that penetrates the holder 270 and is fixed to the cover bottom 250 .

FIG. 13 is a rear view illustrating positions of the holder 270a according to FIG. 5 and the holder 270b according to FIG. 9 .

The holder 270a according to FIG. 5 may be provided at an upper edge of the rear surface of the cover bottom 250, and the holder 270b according to FIG. 9 may be provided along the side edge of the rear surface of the cover bottom 250.

Since the holder 270b according to FIG. 9 is provided along the rear side edge to withstand the load of the rear cover 260, it may be provided longer than the holder 270a of FIG. 5 along the edge.

The back cover 260 may be fixed to the cover bottom 250 (see FIGS. 5 or 9) by screws 290 in addition to the holders 270a and 270b.

Although the rear cover part 260 according to the present invention discloses an embodiment in which it is attached to and detached from the holders 270a and 270b by its own tension, in the process of separating from the cover bottom 250, a certain amount of force is applied. , the rear cover 260 may be irreversibly bent.

Therefore, it is possible to consider a structure in which the rear cover 260 is coupled to the cover bottom 250 in a sliding manner rather than its own tension.

14 is a view for explaining another embodiment in which the rear cover 260 of the present invention is coupled.

The holder 270b provided along the side edge of the rear side of the cover bottom 250 may have an inlet 271 (see FIG. 10) outwardly in a rail shape.

Therefore, the rear cover portion 260 may be attached to and detached from the cover bottom 250 by moving the insertion portion 2611 (see FIG. 9 ) in the vertical direction (F) while being inserted into the inlet portion 271 .

It is apparent to those skilled in the art that the present invention can be embodied in other specific forms without departing from the spirit and essential characteristics of the present invention.

The above detailed description should not be construed as limiting in all respects and should be considered illustrative. The scope of the present invention should be determined by reasonable interpretation of the appended claims, and all changes within the equivalent scope of the present invention are included in the scope of the present invention.

100: display device 210: liquid crystal panel
211: front polarizing member 212: color filter array substrate
213: black matrix 214: TFT array substrate
215: rear polarization member 220: bonding member
230: panel guide 231: seating part
232: side wall portion 233: latch
234: side shield 2341: chamfer
240: backlight unit 241: light guide plate
242: light source unit 250: cover bottom
251: holder support 252: hook hole
260: rear cover 261: cover hook
2611: insertion part 2612: extension part
262: back plate 270, 270a, 270b: holder
2701 side in one direction 2702 side opposite to one direction
271: inlet part 272: holder hook
280: holder screw 290: screw

Claims (11)

A liquid crystal panel that selectively outputs color for each pixel;
a backlight unit emitting light to the rear surface of the liquid crystal panel;
a cover bottom covering a rear surface of the backlight unit;
a panel guide including a seating portion on which the rear circumference of the liquid crystal panel is seated and a sidewall portion covering side surfaces of the liquid crystal panel and the cover bottom;
a back cover portion including a back plate covering the rear surface of the cover bottom and a cover hook provided around the back plate; and,
A holder coupled to the circumference of the rear surface of the cover bottom and detachable from the cover hook,
the holder
Further comprising a holder screw fixed to the cover bottom through the holder,
The cover bottom
A display device comprising a holder support protruding from a rear surface to support one side of the holder.
According to claim 1,
The panel guide
The display device further comprises a side shield extending from the end of the side wall in the rear direction and covering a boundary between the rear cover and the bottom of the cover.
According to claim 2,
The side shield
A display device comprising an inner chamfer at an end.
According to claim 1,
The cover hook is
an extension portion that is bent and extended from the circumference of the back plate in a front direction; and,
Including; an insertion portion bent inwardly at an end of the extension portion,
the holder
A display device, characterized in that it comprises an inlet portion into which the insertion portion is inserted on an outer surface of the holder opposite to the insertion portion.
According to claim 1,
the holder
Further comprising a holder hook bent in one direction on a surface in contact with the rear surface of the cover bottom,
The cover bottom
a hook hole coupled by sliding in the one direction while the holder hook is inserted; and
The display device further comprises a holder support for supporting a side surface of the holder in one direction and a side surface opposite to the one direction of the holder while the holder is coupled thereto.
According to claim 1,
The holder support
A display device, characterized in that a plurality of spaced apart from one side of the holder is provided.
According to claim 1,
the holder
It is provided along the rear upper edge of the cover bottom,
The holder support
Display device, characterized in that for supporting the lower side of the holder.
According to claim 1,
the holder
Further comprising a holder hook on a surface in contact with the rear surface of the cover bottom,
The cover bottom
The display device further comprises a hook hole through which the holder hook is detachable.
A liquid crystal panel that selectively outputs color for each pixel;
a backlight unit emitting light to the rear surface of the liquid crystal panel;
a cover bottom covering a rear surface of the backlight unit;
a panel guide including a seating portion on which the rear circumference of the liquid crystal panel is seated and a sidewall portion covering side surfaces of the liquid crystal panel and the cover bottom;
a back cover portion including a back plate covering the rear surface of the cover bottom and a cover hook provided around the back plate; and,
A holder coupled to the circumference of the rear surface of the cover bottom and detachable from the cover hook,
the holder
Further comprising a holder hook bent in one direction on a surface in contact with the rear surface of the cover bottom,
The cover bottom
a hook hole coupled by sliding in the one direction while the holder hook is inserted; and,
The display device further comprising a; holder support for supporting a side surface of the holder in one direction and a side surface opposite to the one direction of the holder while the holder is coupled.
According to claim 9,
the holder
It is provided along the rear side edge of the cover bottom,
The holder support
Display device, characterized in that for supporting the upper side and the lower side of the holder.
According to claim 9,
the holder
The display device further comprises a holder screw that passes through the holder and is fixed to the cover bottom.

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