JP2002055329A - Liquid crystal display device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a liquid crystal display device made small in size and thin. SOLUTION: A liquid crystal panel 10 is held between a front frame 20 and a rear frame 30, and the rear frame 30 is held by fixing parts 41a, 41b, 41c, 41d formed at the front ends of both side faces of a back light unit 40. The fixing parts 22a, 22b, 22c, 22d, 22e and 22f formed on both ends of the front frame 20 and the fixing parts 41a, 41b, 41c and 41d of the back light unit 40 are alternately fixed to the outer faces of the fixing parts 32a, 32b formed on both ends of the rear frame 30 as in contact with the front and rear frames.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a liquid crystal display for displaying an image by irradiating light from behind a liquid crystal panel with a backlight device.

[0002]

2. Description of the Related Art A liquid crystal display device used for displaying computer images or the like uses light from a backlight device provided inside a liquid crystal panel in which a liquid crystal material is sealed, or reflected light from the outside. Display an image on the front of the LCD panel. Among them, in a liquid crystal display device using a backlight device, for example, a liquid crystal panel is held by two frames from the front and rear, and this liquid crystal panel unit includes:
A backlight unit containing the backlight device is fixed.

Hereinafter, an example of the structure of such a conventional liquid crystal display device will be described. FIG. 5 is an exploded perspective view showing a structural example of a conventional liquid crystal display device. Liquid crystal display device 100
Are a liquid crystal panel 110 for displaying an image and a liquid crystal panel 1
The front frame 120 holds the camera 10 from the front, the rear frame 130 holds the camera 10 from behind, and a backlight unit 140 containing a backlight device that irradiates the liquid crystal panel 110 with light. LCD panel 11
Reference numeral 0 denotes a general liquid crystal display panel in which, for example, a liquid crystal layer is sandwiched between an alignment film and a transparent electrode film before and after the liquid crystal layer, and a transparent plate and a polarizing plate are further laminated. Injection port 11 for sealed liquid crystal material
2 are provided. Each of the front frame 120 and the rear frame 130 is a pressed product made of a metal such as stainless steel or iron having a thickness of, for example, 0.3 mm. The front frame 120 has a front surface portion 121 which is a rectangular frame-shaped flat plate. Flat-shaped fixing portions 122a, 122b, 123a, 123b, and 123c each having an end bent and provided with a mounting hole are formed. Also, the rear frame 13
Similarly, 0 is a flat plate-shaped fixing portion 132a and 132b in which an end of a rear surface portion 131 which is a rectangular frame-shaped flat plate is bent to provide an attachment hole, and a fixing portion provided with a fixing protrusion. 133a, 133b and 133c are formed. The backlight unit 140 is made of metal,
A box-shaped frame made of plastic resin or the like has plate-shaped fixing portions 141a and 141b and fixing portions 141c and 141d protrudingly formed at upper ends of both side surfaces. In addition, a light irradiation surface 142 is provided on the upper surface, and a backlight device including a light source, a light guide plate, a diffusion sheet, a prism sheet, and the like is housed and held therein.

As shown in FIG. 5, a liquid crystal panel 110 is sandwiched and held between a front frame 120 and a rear frame 130. Here, for example, the distance between the fixing portions 122a and 122b provided at both ends of the front frame 120 is slightly larger than the distance between the fixing portions 132a and 132b at both ends of the rear frame 130, and the fixing portion 123a And 123b is slightly larger than the distance between fixing portions 133a and 133b. As a result, when the liquid crystal panel 110 is sandwiched,
Fixed portions 132a and 132b of rear frame 130
Are fixed portions 122a and 122 of the front frame 122.
b, and between the fixed portion 133a and the fixed portion 13
3b and 133c are a fixed part 123a and a fixed part 123.
b and 123c, and the fixing portion 133
The projections provided on a, 133b, and 133c are fitted and fixed in the mounting holes of the fixing portions 123a, 123b, and 123c. On the other hand, the backlight unit 1
For example, the fixing portions 141a and 141c provided in
Is slightly larger than the distance between the fixing portions 122a and 122b of the front frame 120, and the backlight unit is placed in a state where the front frame 120 and the rear frame 130 sandwich the liquid crystal panel 110. 140, the fixing portions 141a and 141b, and the fixing portion 1
41c and 141d. The fixing portions 141a, 141b, 141c, and 141d are provided with protrusions toward the inside. The protrusions fit into the mounting holes provided in the fixing portions 122a, 122b, 132a, and 132b, so that The unit frame 120, the rear frame 130, and the backlight unit 140 are integrally fixed.

[0005]

In general, a liquid crystal display device is used for information devices such as a notebook type word processor and a personal computer. Such demands are also strong in liquid crystal display devices. However, in the above-described liquid crystal display device 100, since the front frame 120 is sandwiched from the outside of the rear frame 130 to fix the liquid crystal panel 110 and the backlight unit 140 is further fixed from the outside, the holding of the liquid crystal panel 110 The thickness of the fixing portions 141a, 141b, 141c, and 141d of the backlight unit 140 is added to the thickness of the two frames of the front frame 120 and the rear frame 130. In a conventional liquid crystal display device, a type in which a backlight unit is sandwiched from the outside of a liquid crystal panel held by a frame as described above is generally used.
There is a limit to miniaturization and thinning.

The present invention has been made in view of such a problem, and provides a liquid crystal display device in which a frame for holding a liquid crystal panel and a backlight unit connected to the frame are reduced in size and thickness. The purpose is to:

[0007]

According to the present invention, in order to solve the above-mentioned problems, in a liquid crystal display device for displaying an image by irradiating light from behind a liquid crystal panel with a backlight device, a first rectangular frame is provided. A front frame in which both ends of the flat plate are bent rearward, a plurality of first plate-shaped fixing portions are formed on both sides at intervals, and the liquid crystal panel is pressed and held from the front; A second frame-shaped flat plate having a square shape is formed by bending both ends forward to form a second plate-shaped fixing portion, and the second plate-shaped fixing portion is formed by the first plate-shaped fixing portion. A rear frame that fits inside the unit and presses and holds the liquid crystal panel from behind, and upper ends of both side surfaces of the box-shaped frame body in which the backlight device is stored protrudes, and a plurality of Shape in which third plate-shaped fixing portions are formed at intervals A backlight that holds the rear frame by fitting the third plate-shaped fixing portion to the outside of the second plate-shaped fixing portion such that the third plate-shaped fixing portion is staggered with the first plate-shaped fixing portion; And a unit.

In such a liquid crystal display device, a plurality of first plate-shaped fixing portions provided on the front frame and a plurality of third plate-shaped fixing portions provided on the backlight unit are provided.
When being held by the rear frame, it alternately contacts the outer surface of the second plate-shaped fixing portion provided on the rear frame. The front and rear frames have a thickness of, for example, 0.3
In a contact portion of each plate-shaped fixing portion, for example, a protrusion provided on one of the contacting plate-shaped fixing portions is inserted into a mounting hole provided on the other. Thereby, the front frame and the backlight unit are fixed to the rear frame.

Further, according to the present invention, in a liquid crystal display device for displaying an image by irradiating light from behind a liquid crystal panel with a backlight device, both ends of a first frame-shaped flat plate having a rectangular shape are bent rearward, A plurality of first plate-shaped fixing portions have a shape formed with a space therebetween, and a front frame for holding the liquid crystal panel by pressing from the front, and both ends of a second frame-shaped flat plate having a square shape Is bent forward,
A plurality of second plate-shaped fixing portions have a shape formed with an interval therebetween, and the liquid crystal panel is pressed and held from behind, and the length between the opposed second plate-shaped fixing portions is reduced. A rear frame in which the length of the second plate-shaped fixing portion is the same as the length between the opposed first plate-shaped fixing portions, and the second plate-shaped fixing portion is alternately arranged with the first plate-shaped fixing portion when the liquid crystal panel is held. And a third plate-shaped fixing portion formed by projecting upper end portions of both side surfaces of the box-shaped frame body in which the backlight device is stored, and wherein the third plate-shaped fixing portion is There is provided a liquid crystal display device comprising: a backlight unit which fits outside the first and second plate-shaped fixing portions and holds the front frame and the rear frame.

In such a liquid crystal display device, the plurality of first plate-shaped fixing portions provided on the front frame and the plurality of second plate-shaped fixing portions provided on the rear frame are formed by a backlight unit. When held in the backlight unit, the backlight unit alternately contacts the inner surface of the third plate-shaped fixing portion provided in the backlight unit. The front frame and the rear frame are made of, for example, a metal having a thickness of less than 0.3 mm, and at a contact portion of each plate-shaped fixing portion, for example, a protrusion provided on one of the contacting plate-shaped fixing portions. Is inserted into a mounting hole provided on the other side, whereby the front frame and the rear frame are fixed to the backlight unit.

[0011]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is an exploded perspective view showing a structural example of the liquid crystal display device of the present invention.

The liquid crystal display device 1 includes a liquid crystal panel 10 for displaying an image, a front frame 20 for holding the liquid crystal panel 10 from the front, a rear frame 30 for holding the liquid crystal panel 10 from behind,
It is constituted by a backlight unit 40 in which a backlight device for irradiating the liquid crystal panel 10 with light is housed.
The liquid crystal panel 10 is, for example, a general liquid crystal display panel in which a liquid crystal layer is sandwiched between an alignment film and a transparent electrode film, and a transparent plate and a polarizing plate are further laminated, and a substrate 11 on which a driving device is mounted is connected. An injection port 12 for a liquid crystal material sealed with a resin is provided. Also, the front frame 20
The rear frame 30 has a thickness of, for example, 0.2 m.
m, which is a metal stamped product such as stainless steel or iron, and has a plurality of portions formed by bending an end of a rectangular flat plate and connecting and fixing it to another frame or the like. Further, the backlight unit 40 is a box-shaped frame made of metal, plastic resin, or the like, and has a similar plate-shaped fixed portion protruding from upper ends of both side surfaces. The backlight device housed in the backlight unit 40 has, for example, a light source such as a fluorescent tube arranged at an end, and guides light from the light source to the front with a light guide plate made of resin or the like, and guides the light. The light guide system is of a type in which light is emitted from a light irradiation surface 42 arranged parallel to the liquid crystal panel 10 on the upper surface of the backlight unit 40 by being diffused by a diffusion sheet and transmitted through the prism sheet.

Hereinafter, a mounting structure of the liquid crystal display device 1 will be described. In the front frame 20, flat ends 21a, 22b, and 22 each having a mounting hole formed by bending both ends of a front portion 21 that is a frame-shaped flat plate backward.
c, 22d, 22e and 22f are plural at both ends,
They are formed at a predetermined interval. This fixing part 22
a, 22b, 22c, 22d, 22e and 22f are:
In FIG. 1, it is provided at the end on the short side of the front surface portion 21, but is not limited thereto, and may be provided on the long side instead. Further, the front frame 20 is also formed with plate-shaped fixing portions 23a, 23b and 23c at the ends on the long sides. On the other hand, the rear frame 30 has a flat plate-shaped fixing portion 32a in which both ends of a frame-shaped flat rear surface portion 31 are bent forward, and a plurality of mounting holes and mounting projections are provided outward. And 32b are formed. In addition, a flat-shaped fixing portion 33a is also provided at the end on the long side,
33b and 33c are formed.

The fixing portions 32a and 32 of the rear frame 30
The plurality of projections provided on 2b correspond to the mounting holes provided on the fixing portions 22a, 22b, 22c, 22d, 22e and 22f of the front frame 20, respectively. The distance in the long side direction of the rear frame 30 is slightly shorter than the distance in the long side direction of the front frame 20. As a result, the fixing portions 32a and 32b of the rear frame 30 are
b, 22c, 22d, 22e, and 22f, the liquid crystal panel 10 is sandwiched and held between the front frame 20 and the rear frame 30. The front frame 20 and the rear frame 30 are fixed by fitting the projections provided on the rear frame 30 into the mounting holes of each fixing portion of the front frame 20. As described above, in the liquid crystal display device 1 described above, the front frame 20 and the rear frame 30 are fixed by the plurality of fixing portions, so that each frame maintains rigidity even as a thin metal having a thickness of less than 0.3 mm. be able to.

The distance in the short side direction of the rear frame 30 is slightly shorter than the distance in the short side direction of the front frame 20, and the fixed portions 33a, 33
b and 33c are fixed portions 23a of the front frame 20,
Both frames are fixed by fitting into the inside of 23b and 23c, and fitting the projection on the rear frame 30 side into the mounting hole on the front frame 20 side. Thereby, the joint strength between the two frames is increased, and the frame rigidity is increased. Further, since the sealing resin attached to the injection port 12 of the liquid crystal panel 10 is in a state of protruding outside,
The fixing portions 23a and 33a do not cover the long sides of each frame, but have a gap formed in a part thereof, from which the sealing resin of the inlet 12 protrudes. Further, the substrate 11 of the liquid crystal panel 10 protruding to the outside similarly to the above,
The substrate 11 protrudes from a gap provided between b and 33b and the fixing portions 23c and 33c.

As described above, the front frame 20 and the rear frame 30 which hold the liquid crystal panel 10 and are integrated therewith are integrated.
Are held by the backlight unit 40. The backlight unit 40 has plate-shaped fixing portions 41a, 41b, 41c, and 4 having a shape protruding from upper ends of both side surfaces.
1d are formed at predetermined intervals. Each fixing part is provided with a protrusion for mounting inward,
Each of the protrusions is provided on a fixing portion 32a of the rear frame 30.
And 32b, respectively. The distance in the long side direction of the backlight unit 40 is slightly shorter than the distance in the long side direction of the rear frame 30, and is equal to the distance in the long side direction of the front frame 20. As a result, the fixing portions 32a and 32b of the rear frame 30 are respectively fitted between the fixing portions 41a and 41b of the backlight unit 40 and the fixing portions 41c and 41d, and the projections are fitted into the mounting holes. Unit 40 and rear frame 30
And are fixed.

FIG. 2 shows how the fixing portions are joined at this time. FIG. 2 is a partially enlarged view of a side surface in a state where the front frame 20, the rear frame 30, and the backlight unit 40 are connected. As described above, the fixing portions 22a, 22 provided on the short sides of the front frame 20
The fixing portions 41a and 41b provided on the short sides of the backlight unit 40, b and 22c are formed at predetermined intervals. For this reason, when the front frame 20 and the backlight unit 40 are connected to the rear frame 30, the fixed portions of the front frame 20 and the backlight unit 40 are engaged with each other alternately as shown in FIG. In this state, it is connected to the fixed portion 32a of the rear frame 30 indicated by oblique lines.

FIG. 3 is a sectional view of the liquid crystal display device 1 as viewed from the direction indicated by the arrow A in FIG. In FIG. 3, the fixing portions 32a and 32a of the rear frame 30 holding the liquid crystal panel 10 are shown.
b, fixing portions 22b and 2 of the front frame 20
2e overlap and are fixed. In addition, the fixing portion 22
Similarly, the fixing portions 41a and 41c of the backlight unit 40 are fixed behind the screens b and 22c. As described above, the distance in the long side direction of the front frame 20 is equal to the distance in the long side direction of the backlight unit 40, and these fixed portions are engaged in front and rear (up and down in the figure) as shown in FIG. , The number of overlapping frames at the connection portion is 2
The width in the long side direction where the connection surfaces of the front frame 20, the rear frame 30, and the backlight unit 40 exist are reduced as compared with the related art. Therefore,
Due to the structure in which the fixing parts are engaged, the front frame 20
It is possible to reduce the width in the long side direction while minimizing the thickness from the front portion 21 to the rear surface of the backlight unit 40. In addition, since a plurality of fixing parts are engaged from the front and back in a meshed state, even if the thickness of the metal used for each frame is less than 0.3 mm, the rigidity of each frame can be maintained and the outer shape can be reduced. Becomes

Further, the connection of the front frame, the rear frame and the backlight unit may be made by the structure of the second embodiment shown below. FIG. 4 shows how the respective fixing portions are joined in the second embodiment.

FIG. 4 is an enlarged view of the connection portion viewed from the inside of each frame in which the liquid crystal panel is accommodated, that is, a view of the connection portion shown in FIG. 2 from the back of the screen.
In this embodiment, both ends of the front portion 51 of the front frame 50 are bent rearward, and a plurality of flat plate-like fixing portions 52a and 52b having mounting holes are formed at both ends at predetermined intervals. It is formed. Also, the rear frame 6
Both ends of the rear surface portion 61 are bent forward, and a plurality of flat fixing portions 62a and the like similarly provided with mounting holes are formed at both ends at predetermined intervals. On the other hand, in the backlight unit 70, plate-shaped fixing portions 71a and the like are formed at predetermined intervals so as to protrude from upper ends of both side surfaces. The distance between both ends of the front frame 50 and the rear frame 60 where the fixing portions are formed is equal to each other, and is slightly shorter than the distance between both ends of the backlight unit 70. Further, the fixing between the fixing portions is performed by fitting the protrusions into the mounting holes as in the first embodiment. The three hatched portions shown in the figure are, from the top, the front part 51 of the front frame 50, the rear part 61 of the rear frame 60, and the backlight unit 7 from the top.
0 shows a cross section of the front part 72.

As shown in FIG. 2, the fixing portions 52a and 52b of the front frame 50 and the fixing portion 62a of the rear frame 60 are fixed to the fixing portion 71 of the backlight unit 70.
It is alternately contacted and fixed to the inside of a from the front and rear. As a result, the number of overlapping frames at the connection portion is suppressed to two, and the distance between both ends where the connection surfaces of the front frame 50, the rear frame 60, and the backlight unit 70 exist is reduced as compared with the related art. You. Therefore, the structure in which the fixing portions engage with each other makes it possible to reduce the width of the front portion 51 while minimizing the thickness from the front portion 51 of the front frame 50 to the rear surface of the backlight unit 70. ing. In addition, since the plurality of fixing portions are fixed from the front and back in a meshed state, the rigidity of each frame can be maintained even if the thickness of the metal used for each frame is less than 0.3 mm, and the outer shape can be further reduced. it can.

The shape of each component of the liquid crystal display device described above is not limited to this. For example, the size and shape of the fixing portion formed in each frame and the backlight unit, the interval between the fixing portions, the size, the number, and the shape of the mounting holes provided in the fixing portion can be freely determined. In addition, the fixing method of each fixing portion can be performed by screwing or bonding.

[0023]

As described above, in the liquid crystal display device of the present invention, the plurality of first plate-shaped fixing portions provided on the front frame and the plurality of third plates provided on the backlight unit are provided. When the shape fixing part is held by the rear frame,
By alternately contacting the outer surface of the second plate-shaped fixing portion provided on the rear frame, the number of contacts of each plate-shaped fixing portion is suppressed to two, and the backlight from the front portion of the front frame is reduced. The width can be reduced while keeping the thickness to the rear of the unit to a minimum. Further, by fixing the front frame and the rear frame with a plurality of plate-shaped fixing portions, each frame has a thickness of 0.3 mm.
The rigidity of the frame can be maintained even if it is made of a metal having a size of less than 1 mm, and the external dimensions of the apparatus are reduced.

In the liquid crystal display device of the present invention, the plurality of first plate-shaped fixing portions provided on the front frame and the plurality of second plate-shaped fixing portions provided on the rear frame are connected to the back. When being held by the light unit, the inner surface of the third plate-shaped fixing portion provided on the backlight unit is alternately contacted, so that the number of contacts of each plate-shaped fixing portion is suppressed to two. The width can be reduced while the thickness from the front surface of the front frame to the rear surface of the backlight unit is kept to a minimum. Further, by fixing the front frame and the rear frame with a plurality of plate-shaped fixing portions, it is possible to maintain frame rigidity even when each frame is made of metal having a thickness of less than 0.3 mm,
The external dimensions of the device are reduced.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view showing a structural example of a liquid crystal display device of the present invention.

FIG. 2 is a view showing a state of joining of respective fixing portions in the liquid crystal display device of the present invention.

FIG. 3 is a cross-sectional view of the liquid crystal display device as viewed from an arrow A shown in FIG.

FIG. 4 is a diagram showing a state of joining of fixing parts in a second embodiment of the liquid crystal display device.

FIG. 5 is an exploded perspective view showing a structural example of a conventional liquid crystal display device.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Liquid crystal display device, 10 ... Liquid crystal panel, 11 ... Substrate, 12 ... Injection port, 20 ... Front frame, 21 ...
Front part, 22a, 22b, 22c, 22d, 22e, 2
2f, 23a, 23b, 23c: fixed portion, 30: rear frame, 31: rear surface portion, 32a, 32b, 33
a, 33b, 33c: fixed portion, 40: backlight unit, 41a, 41b, 41c, 41d: fixed portion, 42: light irradiation surface

 ────────────────────────────────────────────────── ─── Continuing on the front page (72) Inventor Hirokazu Nakayoshi 6-35 Kita-Shinagawa, Shinagawa-ku, Tokyo Sony Corporation F-term (reference) 2H089 HA40 QA11 2H091 FA23Z FA41Z LA11 5G435 AA00 AA18 BB12 EE04 EE05 EE25 KK05

Claims (8)

[Claims] 1. A liquid crystal display device for displaying an image by irradiating light from behind a liquid crystal panel with a backlight device, wherein both ends of a rectangular first frame-shaped flat plate are bent rearward, and a plurality of rectangular frame-like flat plates are provided on both sides. The first plate-shaped fixing portion has a shape formed with a space therebetween, and a front frame for holding the liquid crystal panel from the front and holding the liquid crystal panel from the front, and both ends of a second rectangular frame-shaped flat plate are bent forward. The second plate-shaped fixing portion is formed, and the second plate-shaped fixing portion is fitted inside the first plate-shaped fixing portion, and the liquid crystal panel is moved from behind. A rear frame for holding down and holding, and upper ends of both side surfaces of the box-shaped frame body in which the backlight device is housed protrude, and a plurality of third plate-shaped fixing portions are formed on both sides at an interval. Having a shape, wherein the third plate-shaped fixing part is the first plate-shaped fixing part. And a backlight unit that fits outside the second plate-shaped fixing portion so as to be alternate with the backlight unit and holds the rear frame. 2. The liquid crystal display device according to claim 1, wherein the front frame and the rear frame are made of metal having a thickness of less than 0.3 mm. 3. Between the first and second plate-shaped fixing portions,
2. The fixing device according to claim 1, wherein the second and third plate-shaped fixing portions are fixed by inserting a protrusion provided on one of them into a mounting hole provided on the other. 3. The liquid crystal display device as described in the above. 4. An end of the first and second frame-shaped flat plates, on which the first and second plate-shaped fixing portions are not provided, are provided on the front frame and the rear frame, respectively. Fourth and fifth plate-shaped fixing portions that are fitted to each other are provided at positions where the substrate is connected to the liquid crystal panel and the liquid crystal injection portion provided on the liquid crystal panel is released. The liquid crystal display device according to claim 1, wherein: 5. A liquid crystal display device for displaying an image by irradiating light from behind a liquid crystal panel with a backlight device, wherein both ends of a rectangular first frame-shaped flat plate are bent rearward, and a plurality of rectangular frame-like flat plates are provided on both sides. The first plate-shaped fixing portion has a shape formed with a space therebetween, and a front frame for holding the liquid crystal panel from the front and holding the liquid crystal panel from the front, and both ends of a second rectangular frame-shaped flat plate are bent forward. A plurality of second plate-shaped fixing portions having a shape formed with an interval therebetween, holding the liquid crystal panel from behind and holding the liquid crystal panel between the opposing second plate-shaped fixing portions; The length is the same as the length between the opposed first plate-shaped fixing portions, and the second plate-shaped fixing portion is alternately arranged with the first plate-shaped fixing portion when the liquid crystal panel is held. A rear frame, and a box-shaped housing in which the backlight device is stored. A third plate-shaped fixing portion is formed by projecting upper end portions of both side surfaces of the frame body, and the third plate-shaped fixing portion is provided outside the first and second plate-shaped fixing portions. And a backlight unit that fits and holds the front frame and the rear frame. 6. The liquid crystal display device according to claim 5, wherein the front frame and the rear frame are made of metal having a thickness of less than 0.3 mm. 7. between the first and third plate-shaped fixing portions,
The space between the second and third plate-shaped fixing portions is fixed by inserting a protrusion provided on one of the two into a mounting hole provided on the other. The liquid crystal display device as described in the above. 8. The front frame and the rear frame have rear ends and front ends of the first and second frame-shaped flat plates on which the first and second plate-shaped fixing portions are not provided. Fourth and fifth plate-shaped fixing portions that are fitted to each other are provided at positions where the substrate is connected to the liquid crystal panel and the liquid crystal injection portion provided on the liquid crystal panel is released. The liquid crystal display device according to claim 5, wherein: