JP2019197339A - Display device - Google Patents

Abstract

To provide a display device including a touch panel and capable of preventing occurrence of a pooling phenomenon even when mounted flatly.SOLUTION: A display device 1 comprises a display unit 120, a touch panel 110, a direct backlight 130, a backlight chassis 102, and a fixed plate 310 supporting the display device 1. The fixed plate 310 comprises a connection plate 311 connecting a first end part and a second end part of a rear surface of the backlight chassis 102. A prescribed interval t1 is formed between the connection plate 311 and the backlight chassis 102. The connection plate 311 comprises adjustment screws 315a and 315b for adjusting the prescribed interval t1. The adjustment screws 315a and 315b adjust the prescribed interval t1 so that the backlight chassis 102 curves to the rear surface side.SELECTED DRAWING: Figure 8B

Description

  The present invention relates to a display device including a touch panel.

  A display device with a touch panel that receives an instruction input (touch) from a user using the touch panel is widely used. In the display device, for example, when the touch panel is touched with a user's finger or a touch pen while displaying an image input from an external device or the like on a display unit (display), a handwritten character, a symbol, or the like is displayed at the touched position. You can write shapes. Conventionally, in such a display device, for example, in a meeting or the like, a display device that can be installed and used so that the display surface is parallel to the floor surface (installation surface) has been proposed. (For example, refer to Patent Document 1).

Japanese Patent Laying-Open No. 2015-176467

  When the display device is installed horizontally, the touch panel and the optical sheet are bent toward the inside (the floor surface direction) of the display device due to, for example, the weight of the touch panel and the optical sheet. For this reason, in the case of the direct backlight type in which the backlight is arranged on the back side of the display device, the optical sheet is locally pressed from the support member (support pin) that supports the optical sheet from the back side, and the unevenness Will occur. Accordingly, when a force is applied to the touch panel by touch input or the like, there is a problem that a so-called pooling phenomenon occurs because the orientation of the liquid crystal corresponding to the uneven portion is disturbed.

  An object of the present invention is to provide a display device having a touch panel that can prevent the occurrence of pooling even when installed horizontally.

  A display device according to an aspect of the present invention includes a display unit that displays an image, a touch panel that receives a touch operation on the display surface of the display unit, and a plurality of light sources that are arranged on the back side of the display unit and the touch panel. Including a backlight, a backlight chassis that houses the backlight, and a fixed plate that is attached to the back surface of the backlight chassis and supports the display device, and the fixed plate is a back surface of the backlight chassis. A connecting plate that connects a first end portion on the outer peripheral side and a second end portion on the outer peripheral side of the back surface of the backlight chassis, and a predetermined plate between the connecting plate and the back surface of the backlight chassis. An interval is formed, and the connecting plate includes an adjustment member that adjusts the predetermined interval, and the adjustment member is configured such that the backlight chassis is curved toward the back side. It said predetermined interval to adjust to.

  According to the present invention, in a display device including a touch panel, it is possible to prevent the occurrence of a pooling phenomenon even when installed horizontally.

FIG. 1 is a block diagram showing a configuration of a display device according to Embodiment 1 of the present invention. FIG. 2A is a diagram for explaining a pooling phenomenon that occurs in a conventional display device. FIG. 2B is a diagram for explaining a pooling phenomenon that occurs in a conventional display device. FIG. 2C is a diagram for explaining a pooling phenomenon that occurs in a conventional display device. FIG. 3 is a rear view of the display device according to the first embodiment of the present invention as viewed from the back side. FIG. 4 is a partial enlarged view of the display device in which a part of FIG. 3 (the part surrounded by the frame A) is enlarged. FIG. 5 is a partial side view of the display device viewed from the direction of arrow B in FIG. FIG. 6 is a side view of the display device viewed from the direction of arrow C in FIG. FIG. 7 is a side view of the display device viewed from the direction of arrow D in FIG. FIG. 8A is a diagram for explaining a configuration for preventing the occurrence of a pooling phenomenon in the display device according to the first embodiment of the present invention. FIG. 8B is a diagram for explaining a configuration for preventing the occurrence of a pooling phenomenon in the display device according to the first embodiment of the present invention. FIG. 9A is a diagram for explaining a configuration for preventing the occurrence of a pooling phenomenon in the display device according to the second embodiment of the present invention. FIG. 9B is a diagram for explaining a configuration for preventing the occurrence of a pooling phenomenon in the display device according to the second embodiment of the present invention.

[Embodiment 1]
Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings. In addition, the following embodiment is an example which actualized this invention, Comprising: There is no character which limits the technical scope of this invention.

  As shown in FIG. 1, the display device 1 according to the first embodiment of the present invention includes a touch panel display 100, a backlight 130, a control device 200, and a touch pen (not shown). The control device 200 is a computer that is connected to the touch panel display 100 and controls the touch panel display 100. The control device 200 may be configured integrally with the touch panel display 100. The touch pen is connected to the control device 200 via a network (wired communication or wireless communication). Note that the touch pen may be omitted.

  The touch panel display 100 includes a touch panel 110 and a display unit 120 (display panel).

  The display unit 120 is a display that displays an image, for example, a liquid crystal display.

  Touch panel 110 accepts a touch operation on the display surface of display unit 120. The touch panel 110 may be a capacitive touch panel or a pressure-sensitive touch panel. That is, the touch panel 110 may be an apparatus that can appropriately accept a user's touch operation such as a touch. The touch panel 110 may be disposed in front of the display unit 120 or in the display unit 120.

  The backlight 130 is disposed on the back side of the touch panel display 100. As will be described later (FIG. 8A and the like), the backlight 130 includes an optical sheet 101 disposed on the back side of the touch panel display 100, and a plurality of LEDs 104 (in the present invention) arranged in a plane on the back side of the optical sheet 101. An example of a light source), a plurality of support members 105 (support pins) arranged at a predetermined interval on the back side of the optical sheet 101, and an LED substrate 103 on which the LEDs 104 and the support members 105 are mounted. That is, the backlight 130 is a direct type backlight in which a plurality of LEDs 104 are arranged on the back side of the touch panel display 100. The support member 105 has a function of limiting an excessive deformation by limiting a movable range when the optical sheet 101 is deformed due to heat or the like. The optical sheet 101, the LED 104, the support member 105, and the LED substrate 103 constituting the backlight 130 are accommodated in the backlight chassis 102.

  The touch pen is a pen for a user to perform a touch operation (input) on the touch panel display 100. The user performs a touch operation on the touch panel display 100 with a touch pen or a finger.

  As illustrated in FIG. 1, the control device 200 includes a storage unit 220, an I / F 230, and a control unit 210. The storage unit 220 stores a computer program that can be executed by the control device 200. The controller 210 is composed of a CPU (Central Processing Unit). When activation of the control device 200 is instructed by a user operation (for example, when a power button (not shown) is pressed), the control unit 210 reads a computer program from the storage unit 220 and executes it. Thereby, the control apparatus 200 starts.

  Further, for example, pen software is installed in the storage unit 220 as a computer program that can be executed by the control device 200. When activation of pen software is instructed by a user operation while the control device 200 is activated, the control unit 210 reads the pen software from the storage unit 220 and executes it. As a result, the pen software is activated on the control device 200.

  The I / F 230 is an interface for connecting an external device (not shown) such as a personal computer (PC), a multifunction peripheral, or a projector to the display device 1.

  The control unit 210 includes an input detection unit 211 and a display control unit 212. For example, the control unit 210 controls display of an object such as an image drawn / input on the touch panel display 100, or controls display of an image input from another external device.

  The input detection unit 211 detects the input position of the touch operation on the touch panel display 100. Specifically, the input detection unit 211 detects position coordinates input (designated) by the touch pen or the user's finger on the touch panel 110 (on the display surface).

  The display control unit 212 causes the display unit 120 to display information such as an image. For example, the display control unit 212 causes the display unit 120 to display an image input from an external device. Further, the display control unit 212 causes the display unit 120 to display an input locus based on the position coordinates detected by the input detection unit 211.

  The display device 1 according to the first embodiment is installed (vertical installation) so that the display surface is perpendicular (perpendicular) to the floor surface (installation surface), or the display surface is oblique to the floor surface. It is possible to install (tilt installation) as shown, or install (flat installation) so that the display surface is parallel (horizontal) to the setting surface. For example, the display device 1 may include an angle adjustment mechanism that can adjust the angle of the display surface with respect to the floor surface from a vertical angle to a horizontal angle. The user can use the display device 1 by adjusting the angle by an angle adjustment mechanism.

  Here, a pooling phenomenon that occurs when a conventional display device is installed horizontally will be described. 2A, 2B, and 2C are side views showing a state in which a conventional display device is installed flat.

  As shown in FIG. 2A, the optical sheet 101, the LED 104, the support member 105, and the LED substrate 103 are accommodated in the backlight chassis 102. On the back surface of the backlight chassis 102, an installation base 500 for installing and fixing the display device is attached. The installation table 500 has a structure conforming to the VESA (Video Electronics Standards Association) (registered trademark) standard, and is fixed to the center of the back surface of the backlight chassis 102 with screws.

  When the display device is installed horizontally, as shown in FIG. 2B, the touch panel display 100 and the optical sheet 101 bend around the center portion due to the weight of the touch panel display 100 and the optical sheet 101. FIG. 2A shows a state where the bending does not occur. As shown in FIGS. 2A and 2B, when the touch panel display 100 and the optical sheet 101 are bent, the interval S1 between the optical sheet 101 and the backlight chassis 102 is narrowed.

  When used in the state of FIG. 2B, the touch panel display 100 and the optical sheet 101 are further bent, and the optical sheet 101 is locally pressed from the support member 105 as shown in FIG. Thereby, when force is applied to the touch panel display 100 by touch input or the like, the orientation of the liquid crystal corresponding to the uneven portion is disturbed, and a pooling phenomenon occurs. In particular, in the above-described configuration, since the installation base 500 has a structure that supports only the central portion of the display device from below, the outer peripheral side of the display device is easily bent downward due to its own weight, thereby further reducing the interval S1. Further, when the touch panel display 100 is increased in size (for example, 80 inches), the weight of the display device is increased, and the interval S1 is further reduced, so that the pooling phenomenon appears more remarkably. Further, when the display device is installed in a flat position, the user may use it while wearing a hand or elbow on the touch panel display 100. In this case, since a further force is applied to the display surface of the touch panel display 100, the pooling phenomenon appears more remarkably.

  On the other hand, the display device 1 according to the first embodiment has a configuration capable of preventing the occurrence of the pooling phenomenon even when installed flat.

  FIG. 3 is a rear view of the display device 1 as viewed from the back side. Fixing plates 310 and 320 are provided on the back surface of the backlight chassis 102 of the display device 1. The fixed plate 310 is disposed on one long side of the backlight chassis 102 (upper side in FIG. 3), and the fixed plate 320 is disposed on the other long side of the backlight chassis 102 (lower side in FIG. 3). ing.

  The fixing plate 310 is a reinforcing plate 312a (invention of the present invention) that is screwed to an outer peripheral end (an example of the first end of the present invention) on one short side (right side in FIG. 3) of the back surface of the backlight chassis 102. Of the first reinforcing plate), a handle portion 313a fixed to the reinforcing plate 312a with screws, and an outer peripheral end portion (on the left side in FIG. 3) on the other short side of the back surface of the backlight chassis 102 (of the present invention). The reinforcing plate 312b (an example of the second reinforcing plate of the present invention) fixed to the reinforcing plate 312b, the handle portion 313b fixed to the reinforcing plate 312b, and the reinforcing plates 312a and 312b. And a connecting plate 311 having one end 311a screwed to the reinforcing plate 312a and the other end 311b screwed to the reinforcing plate 312b. The connecting plate 311 includes plates 314a and 314b, an adjustment screw 315a inserted into a through hole (screw hole) of the plate 314a, and an adjustment screw 315b inserted into a through hole (screw hole) of the plate 314b. Yes.

  Similarly, the fixing plate 320 is a reinforcing plate 322a that is screw-fixed to an outer peripheral end portion (one example of the first end portion of the present invention) on one short side (right side in FIG. 3) of the back surface of the backlight chassis 102. (An example of the first reinforcing plate of the present invention), a handle portion 323a screwed to the reinforcing plate 322a, and an outer peripheral end on the other short side (left side in FIG. 3) of the back surface of the backlight chassis 102 ( An example of the reinforcing plate 322b (an example of the second reinforcing plate of the present invention) fixed to the reinforcing plate 322b, a handle portion 323b fixed to the reinforcing plate 322b, and the reinforcing plates 322a and 322b. And a connecting plate 321 having one end 321a screwed to the reinforcing plate 322a and the other end 321b screwed to the reinforcing plate 322b. The connecting plate 321 includes plates 324a and 324b, an adjustment screw 325a inserted into a through hole (screw hole) of the plate 324a, and an adjustment screw 325b inserted into a through hole (screw hole) of the plate 324b. Yes. The handle portions 313a, 313b, 323a, and 323b are portions that the user grips when installing the display device 1 or adjusting the angle.

  4 is a partially enlarged view of the display device 1 in which a part of FIG. 3 (the portion surrounded by the frame A) is enlarged, and FIG. 5 is a partial side view of the display device 1 as viewed from the direction of arrow B in FIG. It is. FIG. 6 is a side view of the display device 1 as seen from the direction of arrow C in FIG.

  The end portion of the backlight chassis 102 is formed of a strong sheet metal, and the load resistance performance is high. As shown in FIGS. 4 and 5, the reinforcing plate 312 a is screwed to the end of the backlight chassis 102. The same applies to the other reinforcing plates 312b, 322a, and 322b. The connecting plate 311 is screwed to the reinforcing plates 312a and 312b, and the connecting plate 321 is screwed to the reinforcing plates 322a and 322b. Therefore, the fixed plate 310 is firmly fixed on one side of the back surface of the backlight chassis 102, and the fixed plate 320 is firmly fixed on the other side of the back surface of the backlight chassis 102. That is, the display device 1 is supported as a whole by supporting the end portions of the display device 1 by the fixing plates 310 and 320 as shown in FIG. The central portions of the connecting plates 311 and 321 are not directly fixed to the backlight chassis 102, and a predetermined interval is formed between the back surface of the backlight chassis 102. The connecting plate 311 is fixed to the backlight chassis 102 via adjustment screws 315a and 315b, and the connecting plate 321 is fixed to the backlight chassis 102 via adjustment screws 325a and 325b. The adjusting screws 315a, 315b, 325a, and 325b are disposed near the center of the back surface of the backlight chassis 102 (position conforming to the VESA standard). The adjustment screws 315a, 315b, 325a, and 325b are examples of the adjustment member of the present invention.

  Note that the reinforcing plates 312a, 312b, 322a, and 322b may be omitted from the fixing plates 310 and 320. In this case, the end portions of the connecting plates 311 and 321 may be directly fixed to the end portions on the outer peripheral side of the back surface of the backlight chassis 102. That is, the end 311a of the connecting plate 311 is directly fixed to the end of the backlight chassis 102 (the right end in FIG. 2), and the end 311b of the connecting plate 311 is the end of the backlight chassis 102 (the left end in FIG. 2). ), The end 321a of the connecting plate 321 is directly fixed to the end of the backlight chassis 102 (the right end in FIG. 2), and the end 321b of the connecting plate 321 is the end of the backlight chassis 102 (see FIG. 2 may be directly fixed to the left end).

  FIG. 7 is a side view of the display device 1 as seen from the direction of arrow D in FIG. The adjustment screw 315b has a screw portion inserted into a through-hole of the plate 314b, a screw head fixed to the plate 314b (fixing plate 310), and a screw tip (and a screw portion) according to the VESA standard of the backlight chassis 102. Is screwed into a screw hole 102p provided in the. Four screw holes 102p are provided at positions conforming to the VESA standard. A predetermined interval t <b> 1 is formed between the plate 314 b (fixed plate 310) and the backlight chassis 102. As described above, both ends of the display device 1 are supported by the fixing plates 310 and 320, and the predetermined interval t1 is formed between the fixing plates 310 and 320 and the back surface of the backlight chassis 102. By turning (tightening) the adjusting screw 315b in the tightening direction, the interval t1 (distance) is narrowed, and the backlight chassis 102 supports both ends (an example of the first end and the second end of the present invention). Then, it bends (bends) in the direction of the arrow shown in FIG. Thus, the adjustment screw 315b has an adjustment function for adjusting the distance t1 between the plate 314b and the backlight chassis 102.

  Similarly, the adjustment screw 325b has a screw portion inserted into a through hole of the plate 324b, a screw head fixed to the plate 324b (fixing plate 320), and a screw tip (and a screw portion) as a screw hole 102p of the backlight chassis 102. Are screwed together. A predetermined interval t1 is formed between the plate 324b and the backlight chassis 102. By turning the adjustment screw 325b in the tightening direction, the interval t1 is narrowed, and the backlight chassis 102 is bent in the direction of the arrow with both ends as fulcrums. Thus, the adjustment screw 325b has an adjustment function for adjusting the interval t1 between the plate 324b and the backlight chassis 102. The same applies to the adjustment screws 315a and 325a. In other words, the adjusting screws 315a, 315b, 325a, and 325b adjust the predetermined interval t1 so that the backlight chassis 102 is curved to the back side with both ends as fulcrums.

  That is, in the display device 1, the amount of deflection (interval t <b> 1) of the display device 1 including the backlight chassis 102 can be adjusted by adjusting the four adjustment screws 315 a, 315 b, 325 a, and 325 b.

  8A and 8B are diagrams schematically illustrating a state in which the display device 1 is bent when the adjustment screws 315a, 315b, 325a, and 325b are adjusted. 8A and 8B show a state where the display device 1 is installed flat on the installation table 500. FIG. The installation base 500 is fixed to the connection plates 311 and 321 of the fixing plates 310 and 320 by screws, for example.

  As shown in FIG. 8A, the fixing plate 310 has the reinforcing plates 312 a and 312 b at both ends firmly fixed to the end of the backlight chassis 102 with screws. Screw heads of adjustment screws 315 a and 315 b arranged at the center of the fixing plate 310 are fixed to the connecting plate 311, and the screw portions are screwed into the screw holes 102 p of the backlight chassis 102.

  In the state shown in FIG. 8A, when the adjustment screws 315a and 315b are turned (tightened) in the tightening direction, as shown in FIG. 8B, the interval t1 between the connecting plate 311 of the fixing plate 310 and the backlight chassis 102 is narrowed. The backlight chassis 102 is bent (bent) by being pulled downward (in the direction of the arrow) with both ends serving as fulcrums. Here, the touch panel display 100 and the optical sheet 101 bend downward due to their own weights. Even if the touch panel display 100 and the optical sheet 101 are bent downward due to their own weights, the backlight chassis 102 is curved downward by the adjusting screws 315a and 315b, so that there is a predetermined gap between the optical sheet 101 and the backlight chassis 102. Is formed (maintained). That is, even after the touch panel display 100 and the optical sheet 101 are bent (see FIG. 8B), the interval s1 is maintained (secured) in a state before the bending is generated (see FIG. 8A).

  As described above, by adjusting the distance t1 with the adjusting screws 315a, 315b, 325a, and 325b, the distance (distance) between the optical sheet 101 and the support member 105 is adjusted, and the distance between the optical sheet 101 and the support member 105 is adjusted. A predetermined interval is secured. For this reason, generation | occurrence | production of a pooling phenomenon can be prevented. According to the above-described configuration, the interval t1 can be adjusted according to the amount of deflection of the touch panel display 100 and the optical sheet 101 even when the display device 1 is enlarged (for example, 80 inches) or thinned. Therefore, the occurrence of pooling phenomenon can be prevented. When the optical sheet 101 and the support member 105 are assembled so as to be in contact with each other in a vertically installed state, the adjustment screws 315a, 315b, 325a, and 325b are used so that the pressing force at the contact portion does not change. The interval t1 is adjusted.

  In the display device 1 according to the first embodiment, adjustment of the amount of bending (bending amount) of the backlight chassis 102 by the adjustment screw is performed by four adjustment screws. The distance between the optical sheet 101 and the backlight chassis 102 (s1 in FIG. 8B) can be adjusted by tightening the four adjustment screws 315a, 315b, 325a, and 325b.

  The display device of the present invention is not limited to the above-described configuration. For example, the reinforcing plate 312a of the fixing plate 310 is screwed to the end portion (an example of the first end portion of the present invention) on one long side (upper side in FIG. 3) of the back surface of the backlight chassis 102, and the reinforcing plate 312b may be screwed to an end (an example of the second end of the present invention) on the other long side (the lower side in FIG. 3) on the back surface of the backlight chassis 102.

[Embodiment 2]
In the display device 1 according to the second embodiment, the adjustment screws 315a, 315b, 325a, and 325b are arranged at the end portions of the fixing plates 310 and 320. Taking the fixing plate 310 as an example, for example, as shown in FIG. The spacer SP has, for example, a hollow shape, and a screw is inserted into the spacer SP, and the fixing plate 310 and the vicinity of the center of the backlight chassis 102 (position conforming to the VESA standard) are fixed by the screw. Thereby, in the spacer SP portion (near the center), the interval between the fixed plate 310 and the backlight chassis 102 is maintained at a predetermined interval. Further, adjustment screws 315 a and 315 b arranged at the end of the fixing plate 310 are screwed into the screw holes 102 p at the end of the back surface of the backlight chassis 102.

  In this state, by rotating the adjusting screws 315a and 315b in the loosening direction, the end of the backlight chassis 102 is pushed out in the direction of the arrow away from the fixed plate 310 as shown in FIG. 9B. As a result, on the end side of the backlight chassis 102, the interval between the fixing plate 310 and the backlight chassis 102 is widened, and the backlight chassis 102 is curved. The touch panel display 100 and the optical sheet 101 are also pushed up in the direction of the arrow away from the fixed plate 310. Therefore, similarly to the above-described configuration, since a predetermined interval is ensured between the optical sheet 101 and the support member 105, the occurrence of the pooling phenomenon can be prevented.

  As described above, in the display device 1 according to the first and second embodiments, the adjustment screws 315a, 315b, 325a, and 325b (an example of the adjustment member of the present invention) are arranged so that the backlight chassis 102 is curved to the back side. It has a function of adjusting a predetermined distance between the connecting plates 311 and 321 and the back surface of the backlight chassis 102.

  A spacer having a predetermined height may be provided on the adjustment screw. For example, in the configuration shown in FIG. 8A, the interval t1 is fixed to the height of the spacer by inserting the adjusting screw through the spacer lower than the initial interval t1 and turning in the tightening direction. Thereby, the curved shape of the backlight chassis 102 can be made constant, and the trouble of adjusting the interval t1 can be saved. Note that the interval t1 may be adjusted by replacing the spacers with different heights.

  In the configuration in each of the above-described embodiments, the backlight chassis 102 is curved using four adjustment screws. However, the number of adjustment screws is not limited, and at least one adjustment screw may be provided. When one adjustment screw is used, the adjustment screw is attached to, for example, a central portion on the back surface of the backlight chassis 102.

1: Display device 100: Touch panel display 101: Optical sheet 102: Backlight chassis 102p: Screw hole 104: LED
105: Support member 110: Touch panel 120: Display unit 130: Backlight 310: Fixing plate 311: Connection plate 311a: Reinforcement plate 312b: Reinforcement plate 315a: Adjustment screw 315b: Adjustment screw 320: Fixation plate 321: Connection plate 322a: Reinforcement Plate 322b: Reinforcing plate 325a: Adjustment screw 325b: Adjustment screw 500: Installation base

Claims (7)

A display for displaying an image;
A touch panel that accepts a touch operation on the display surface of the display unit;
A backlight including a plurality of light sources arranged on the back side of the display unit and the touch panel;
A backlight chassis that houses the backlight;
A fixing plate attached to the back surface of the backlight chassis and supporting the display device;
With
The fixing plate includes a connecting plate that connects a first end portion on the outer peripheral side of the back surface of the backlight chassis and a second end portion on the outer peripheral side of the back surface of the backlight chassis,
A predetermined interval is formed between the connecting plate and the back surface of the backlight chassis,
The connecting plate includes an adjustment member that adjusts the predetermined interval,
The adjustment member adjusts the predetermined interval so that the backlight chassis is curved to the back side.
Display device. The adjustment member is disposed near the center of the back surface of the backlight chassis.
The display device according to claim 1. The adjustment member is composed of a screw,
The screw head of the screw is fixed to the fixing plate, and the screw portion of the screw is screwed into a screw hole provided on the back surface of the backlight chassis,
By turning the screw in the tightening direction, the predetermined interval near the center of the backlight chassis is narrowed, and the backlight chassis is moved to the back side with the first end and the second end as fulcrums. Curving,
The display device according to claim 1. The screw hole is provided at a position according to the VESA (Video Electronics Standards Association) standard.
The display device according to claim 3. The vicinity of the center of the backlight chassis is fixed to the fixing plate,
The adjustment member is disposed at an end of the back surface of the backlight chassis,
The adjustment member is composed of a screw,
The screw head of the screw is fixed to the fixing plate, and the screw portion of the screw is screwed into a screw hole provided in an end portion on the back surface of the backlight chassis,
By turning the screw in the loosening direction, the predetermined interval on the end side of the backlight chassis is widened, and the backlight chassis is curved to the back side.
The display device according to claim 1. The backlight includes an optical sheet and a support member that supports the optical sheet,
By adjusting the predetermined interval, the interval between the optical sheet and the support member is adjusted.
The display device according to any one of claims 1 to 5. The display device is installed such that the display surface is parallel or inclined with respect to the floor surface.
The display device according to any one of claims 1 to 6.

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