JPH043089A - Display device and production thereof - Google Patents

Abstract

PURPOSE:To prevent the direct contact with hard and brittle front surface plates and to fill the spacings between the joints of display units to eliminate the adverse influence on a display screen by providing packing bodies which have the same refractive indices as the refractive indices of the front surface plates and are transparent between the adjacent front surface plates of plural pieces of the display units. CONSTITUTION:Plural pieces of the display units 10 are so disposed in parallel in a housing 11 that the adjacent front surface plates 27 come into contact with each other. The front surface plates 27 are so arranged that the front surface parts thereof are positioned flush with each other. The display device is formed in such a manner. The packing bodies 80 which have the same refrac tive indices as the refractive indices of the front surface plates 27 and are transparent are provided between the adjacent front surface plates of plural pieces 20. The direct contact of the packing bodies 80 and the hard and brittle front surface plates 27 is prevented in this way and the chipping of the front surface plates 27 is prevented; in addition, the adverse influence on the display screen is eliminated by filling the spacings at the joints of the display units 20.

Description

Detailed Description of the Invention [Industrial Field of Application] The present invention relates to a display device (for example, This invention relates to improvements in matrix-type displays) and their manufacturing methods.

[Prior art] In recent years, PLZT (for example, (P ba-sx Lao-o
q) C'lro.

Research and development of PLZT light valves using ss Tlo, 1s) Oi) has become active. PLZ like this
Display bag using T light bulb! One of the things that forms a matrix type display (for example, a matrix display) is a
There is one in which LZT display units are arranged in parallel.

Conventionally, this type of display device is a PLZ as shown in FIG.
As shown in FIGS. 7 to 9, a plurality of T display units 10 were arranged in parallel in a housing 11 so that their display surfaces were aligned. That is, the reflective container 14 has a substantially semi-cylindrical shape and has an inner wall surface as a reflective surface for light from the display light source 12.
A light diffusing plate 16 and a polarizing plate 18 are placed on the display surface side which is the opening side of the
．． PLZT wafer 20.1TO film 22. Color filter 24. A polarizing plate 26 and a hard and brittle front plate 27 such as a glass plate are sequentially fixed to form a display section 28, and ICs 36, . FP equipped with ・, 38, ...
C (flexible printed circuit boards) 40 and 42 are attached to form the circuit part 44, and the circuit mounting body 30 is fixed to the back side of the reflective container 14, and the connection parts 40a and 42a of the FPCs 40 and 42 are connected to the ITO film 22. By connecting the electrodes of the PLZT wafer 20 and the FPC 4
PLZT display unit 1 by connecting drive circuits 0 and 42
0 was formed. The reflective container 14 and the circuit mounting body 30 are formed of thin stainless steel plates with thicknesses of 0.11 mm and 0.5 mm, respectively. And as shown in FIGS. 7 to 9.

A plurality of PLZT display units IO are arranged vertically and horizontally in parallel in the housing II so that the side surfaces of adjacent front plates 27, .
... to move the movable holding plate 56.58 to the PLZT display unit 1.
Adjust the PLZT display unit 10. by pushing it toward the 0, . ... circuit section 44. Adjust so that it does not move in the front and back direction by pressing ..., and then press front plate 2.
The front portions of 7, . . . are brought into contact with the inner surface of the front glass plate 13 attached to the housing 11. Reference numerals 62 and 64 are cushion materials, 66 is a back cover attached to the back side of the housing 11, and this back cover 66 has adjustment screws 60. ... and the PLZT display unit 10,
・Support rod 7 protruding from the end of the circuit section 44, .
0, . . , through the alignment holes 72.・・・
・A is formed. As described above, a plurality of PLZT display units 10 (for example, 800 pixels on a 4 am x 8 am display screen) having a predetermined number of pixels (
By arranging, for example, 24 pieces, a display screen of a predetermined size (for example, 15 inch size) is formed. In addition, in FIGS. 7 to 9, the PLZT display unit 10 is shown in a simplified diagram to simplify the display, and the front plate 27. A gap 74 formed between... is enlarged and displayed.

"Problem to be Solved by the Invention" However, in the conventional example, the adjacent front plates 27...
・There was no filling or cushioning material between them, and they were simply in contact with each other, so there were problems like those mentioned above.

(a) Since the front plate 27, which is hard and brittle like glass, must be arranged so that its side surfaces are almost in contact with each other, 1
The front plate 27.
... is likely to be chipped.

(b) Since the contact surface of a hard and brittle material such as glass has poor slippage, it is difficult to align the two display devices during manufacture.

(c) Gap 74 between adjacent front plates 27, .・
... is created, and the refractive index of this gap 74, ... is the same as that of the front plate 2.
7. . . , the joints between the plurality of PLZT display units 10, . . . arranged in parallel are noticeable and have an adverse effect on the display screen.

The present invention has been made in view of the above-mentioned problems, and allows a plurality of display units to be easily aligned and arranged within a housing, and prevents the front panel of the display unit from being chipped during arrangement or transportation. It is an object of the present invention to provide a display device in which joints between a plurality of display units are not noticeable, and a method for manufacturing the same.

F! Means for Solving Problem 11 J A display device according to the present invention arranges a plurality of display units each having a hard and brittle front panel in parallel in a housing so that the side surfaces of adjacent front panels substantially touch each other. In a display device in which the front parts of the front plates are aligned.

The present invention is characterized in that a transparent filling body having a refractive index substantially the same as that of the front plate is provided between the adjacent front plates.

In order to more reliably prevent the front plate from being chipped due to vibrations during transportation, the filling body is made of an elastic material made of dried grease-like silicon.

A method for manufacturing a display device according to the present invention includes arranging a plurality of display units each having a hard and brittle front plate in parallel in a housing so that the side parts of adjacent front plates are almost in contact with each other. In the display device configured to align the display units, before arranging the plurality of display units in parallel within the housing,
The present invention is characterized in that a filler material is coated on side portions of the adjacent front plates, the refractive index of which is approximately the same as that of the front plate when dry, and which becomes transparent when dry.

In order to more reliably prevent the front panel from being chipped during manufacturing, the filling material is made of grease-like silicon that becomes elastic when dry.

"Operation" A plurality of display units are arranged in parallel in a housing so that adjacent front plates are almost in contact with each other, and aligned so that the front parts of the front plates are on the same surface to form one display device. At this time,
between the adjacent front panels.

Since the refractive index is almost the same as that of the front plate and a transparent filling body is provided, this filling body prevents direct contact with the hard and brittle front plate and prevents the front plate from chipping. To prevent a display screen from being adversely affected by filling gaps between joints of display units. If the filling body is made of an elastic material made of dried grease-like silicon, it is possible to more reliably prevent the front plate from being chipped due to vibrations during transportation or the like.

``Example'' Figures 1 to 4 show an example of the display device and its manufacturing method according to the present invention. In these figures, the same parts as those in Figures 6 to 9 are The same code shall be used. 1 to 4, 10 is the PLZT display unit shown in the PLZT display unit diagram in FIG.
It is a display unit.

First, the entire front part and part of the side part of the display part 28 including the front plate 27 of the PLZT display unit 10 are provided with a fourth
As shown in the figure, grease-like silicon 80 as a filling material is uniformly applied. Next, as shown in FIGS. 1 to 3, a plurality of PLZT display units 10 coated with the grease-like silicon 80 are attached to the front plate 27.・
. . have the same front surface and are adjacent to each other.
... are arranged in parallel in the vertical and horizontal directions in the casing 11 so that their side surfaces are almost in contact with each other. At this time, the front plate 27,...
Since a grease-like silicone 80 is applied as a filling material between the front plates 27, . . . , the front plates 27, .・・・
・Direct contact between the two can be prevented. And adjustment screw 5
2,...,54. PL the movable holding plate 56.58 with...
Adjust the ZT display unit 10 so that it does not move vertically or horizontally by pushing it toward the side, and adjust the adjustment screw 60.
PLZT display unit 10. ... circuit section 4
4. Adjust so that it does not move in the front-back direction by pressing 27. After a predetermined period of time has elapsed after forming the first assembly, the grease-like silicon 80 dries and the refractive index changes to that of the front glass plate 13 attached to the housing 11. It is almost the same as the front plate 27.27, and is an elastic transparent filling body.・
...between and front plate 27. ... and the front glass plate 13 are adhesively fixed.

62 and 64 are cushion materials, and 66 is a back cover attached to the back side of the housing 11. This back cover 66 has screw holes 68. ..., and the circuit section 44 of the PLZT display unit ]0, ... Positioning holes 72, . . . are formed in which support rods 70, . For ease of illustration, in FIGS. 1 to 3, the gaps between the front plates 27, . . . and the grease-like silicon filled in these gaps are shown in FIGS. 8
Enlarge and display 0.

In the above embodiment, as shown in FIG. 4, a grease-like silicone 80 is uniformly applied to the entire front part and part of the side parts of the display part 28 including the front plate 27 of the PLZT display unit 10. , adjacent front plates 27, ... and between the front plates 2
7, ... and the front glass plate 13 are formed with a transparent filling body having a refractive index almost the same as that of the front plate and having the shape of an elastic body. However, the present invention is not limited to this. , a grease-like silicone as a filling material is applied to at least the side surface of the front panel of the display unit, and a transparent filler in the form of an elastic body is provided between adjacent front panels and has a refractive index substantially the same as that of the front panel. It is fine as long as it can be done. For example, as shown in FIG. 5, the outer periphery of the front part of the front plate 27 corresponding to the front edge of the display part 28 of the PLZT display unit 10 and the side part of the front plate 27 of the display part 28 Grease-like silicon 80 may be uniformly applied to a portion of the side surface. Alternatively, although not shown, the grease-like silicon 80 may be uniformly applied only to the side surface of the front plate 27 of the PLZT display unit 10.

In the above embodiment, grease-like silicone, which becomes an elastic body when dried, is used as the filling material, and after applying the grease-like silicone to at least the side surface of the adjacent front plate,
Although a plurality of display units are arranged in parallel within a housing to more reliably prevent the front panel from being chipped during manufacturing of the display device, the present invention is not limited to this. Instead, the filling material may be a substance equivalent to grease-like silicon, as long as it has a refractive index that is almost the same as that of the front plate when dry and is transparent when dry. .

In the embodiment described above, the filling body is provided between adjacent front plates in order to more reliably prevent the front plates from being chipped due to vibrations during transportation or the like.

It is made of an elastic material made of dried grease-like silicon, but
The present invention is not limited to this, and the filling body provided between adjacent front plates may have a refractive index substantially the same as that of the front plate, and may be a transparent filling body.

"Effects of the Invention" As described above, in the display device according to the present invention, a transparent filling body having almost the same refractive index as the front plate is provided between adjacent front plates of a plurality of display units. ,
This filler prevents the hard and brittle front plate from coming into direct contact, prevents the front plate from chipping, and fills the gaps between the joints of the plurality of display units so as not to adversely affect the display screen. If the filling body is made of an elastic material made of dried grease-like silicon, it is possible to more reliably prevent the front plate from being chipped due to vibrations during transportation or the like.

In addition, as described above, in the method for manufacturing a display device according to the present invention, the side surfaces of adjacent front plates of a plurality of display units have a refractive index that is almost the same as that of the front plate when dry, and a transparent layer when dry. After applying a filler material of Improve the sliding between. This simplifies the alignment of multiple display units during the manufacturing of display devices, prevents chipping of the front panel, and allows the filling material to be made of grease-like silicon that becomes elastic when dry. In this case, it is possible to more reliably prevent the front plate from being chipped during manufacturing of the device.

[Brief explanation of drawings]

1 to 4 show an embodiment of the display device and its manufacturing method according to the present invention. FIG. 1 is a front view of the display device with the gap between the front panels exaggerated, and FIG. The figure is a partially cutaway rear view of the figure 1, figure 3 is a partially cutaway right side view of figure 1, and figure 4 shows the PLZT display unit of figure 6 as shown in WiJ! FIG. 5 is a perspective view corresponding to FIG. 4 in another embodiment, and FIGS. 6 to 9 show conventional examples. , FIG. 6 is a plan view of the P LZ T display unit, FIG. 7 is a front view of the display device, FIG. 8 is a rear view of FIG. 7 with a part cut away, and FIG. 9 is a partially cut away view. FIG. 7 is a right side view of FIG. 7 with a cutout; 10. PLZT display unit, 11... housing, 13.
・Front glass plate, 12. Display light source, 14. Reflective container, 20. PLZT wafer, 27. Hard and brittle front plate.
28...Display section, 44...Circuit section, 80...Grease-like silicon (filling material that becomes a predetermined filling body when dried)
. Applicant Fujitsu General Ltd.

Claims (4)

[Claims] (1) Multiple display units with hard and brittle front plates,
In a display device in which the front panels of the front panels are arranged in parallel in a housing so that the side panels of the adjacent front panels are substantially in contact with each other, and the front panels of the front panels are aligned, the refractive index between the adjacent front panels is approximately the same as that of the front panel. A display device characterized by being provided with an identical and transparent filling body. (2) The display device according to claim 1, wherein the filling body is an elastic body made of dried grease-like silicon. (3) A plurality of display units having hard and brittle front plates,
In the display device, the plurality of display units are arranged in parallel within the housing so that the front sides of the front plates are aligned so that the side faces of adjacent front plates are substantially in contact with each other. A method for manufacturing a display device, characterized in that: first, a filler material whose refractive index when dried is approximately the same as that of the front plate and which becomes transparent when dry is applied to a side surface of the adjacent front plate. . (4) The method for manufacturing a display device according to claim 3, wherein the filling material is a grease-like silicone that becomes an elastic body when dried.