JPH0673729U - Liquid crystal cell fixing device - Google Patents

Abstract

(57) [Abstract] [Purpose] The present invention is intended for a device for fixing a liquid crystal cell, which can reduce the weight of a module. [Structure] A liquid crystal cell 1 and a structure for fixing the liquid crystal cell 1 are provided with a plurality of holes 71 on an upper surface and a lower surface, and each of the holes 7 is formed.
1 communicates with an internal hole 72 provided inside, and on the side surface,
The heat-sealing tube 8 communicating with the inner hole 72 is fixed via a cell fixing rubber 7 and the air in the inner hole 72 is sucked and reduced from the heat-sealing tube 8 to be fixed.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a liquid crystal cell fixing device used for fixing a liquid crystal cell in a liquid crystal display device.

[0002]

[Prior art]

 As shown in FIG. 4, the conventional liquid crystal cell fixing structure fixes the liquid crystal cell 1 directly to the backlight 2 in the transmissive type, and fixes the liquid crystal cell 1 to the structure around the backlight 2 in the reflective liquid crystal. In this case, the liquid crystal cell 1 is fixed via a pressing rubber 3 using a rigid metal fixing frame 4. The fixed frame 4 is fixed to the outer case or the backlight 2 with screws, claws or the like.

[0003]

[Problems to be solved by the device]

 However, in the above-mentioned conventional technique, A. Since the liquid crystal cell is fixed to the rigid fixed frame, the fixed frame is heavy, and there is a problem that the weight as a whole becomes heavy. B. When the fixing frame is fixed to another structure, if there is misalignment, it takes time to reassemble. C. When the liquid crystal cell is fixed to the fixing frame, it is pressed by the pressing rubber, so there is a problem that the gap of the liquid crystal cell near the pressing rubber becomes thin and a problem occurs.

Therefore, the present invention has been devised in view of the problems of the above-mentioned conventional techniques, and an object thereof is to provide a fixing device for a liquid crystal cell, which can reduce the weight of a module.

[0005]

[Means for Solving the Problems]

 In order to achieve the above object, in the liquid crystal cell fixing device according to the present invention, the liquid crystal cell and the structure for fixing the liquid crystal cell are provided with a plurality of holes on the upper surface and the lower surface, and each hole is provided inside. The inner hole is communicated with the inner hole, and the side of the inner hole is fixed with a cell fixing rubber provided with a heat-sealing tube that communicates with the inner hole. It is characterized by that.

[0006]

[Action]

 As shown in Fig. 4, the cell fixing rubber is placed outside the effective display area of the liquid crystal cell, and after aligning the liquid crystal cell with a backlight or a fixing base (not shown), the heat sealing tube is used to move the inner hole. The air is sucked and decompressed to fix the liquid crystal cell, the cell fixing rubber and the back light, and then the end of the heat fusion tube is sealed and fixed using a heating jig.

[0007]

【Example】

 An embodiment will be described with reference to FIGS. 1 to 3. In the backlight 2 and other structures, a liquid crystal driver 5 is fixed via a bus substrate 6, and the backlight 2 and the liquid crystal cell 1 are for cell fixing. It is fixed via the rubber 7. The cell fixing rubber 7 is made of an adhesive material such as silicon rubber, and the upper and lower surfaces of the cell fixing rubber 7 have holes 71 of φ0.5 mm to φ0.3 mm as shown in FIG. Several to several dozen are drilled. Further, each of the holes 71 is formed so as to communicate with an internal hole 72 provided inside. The cell fixing rubber 7 is arranged outside the effective display portion of the liquid crystal cell 1 as shown in FIG.

Further, at least one side surface of the cell fixing rubber 7 is made of a material such as PP (polypropylene) that is fused at 200 ° C. or lower, and is a heat-fusible tube that can be fused by heat. 8 is provided, and the air in the inner hole 72 is sucked and decompressed from the heat-sealing tube 8 so that it can be fixed to the backlight 2 (FIG. 2). The heat fusion tube 8 is taken out from a portion where a plurality of liquid crystal drivers 5 are arranged, a corner portion or the like.

At the end of the heat-sealing tube 8, the air in the inner hole 72 is sucked and decompressed to fix the liquid crystal cell 1, the cell fixing rubber 7 and the backlight 2 and then a heat treatment tool such as a soldering iron. Can be sealed by using.

[0010]

[Effect of device]

 Since the present invention is configured as described above, it has the following effects. A. Since the liquid crystal cell and the backlight are fixed via a cell fixing rubber that can be sucked and decompressed, a heavy fixing frame is not required and the module can be made lighter. B. The cell fixing rubber can also be used as a temporary fixing means for a liquid crystal cell. C. Even if the fixing frame is misaligned when it is fixed to another structure, it can be reassembled in a short time. D. Since the liquid crystal cell is fixed to the backlight by the pressure difference, the problem that the gap becomes thin does not occur at the fixed position.

[Brief description of drawings]

FIG. 1 is a perspective view of a cell fixing rubber.

FIG. 2 is a sectional view of a main part of a cell fixing rubber.

FIG. 3 is an explanatory view showing a liquid crystal cell fixing device of the present invention.

FIG. 4 is an explanatory diagram showing a conventional liquid crystal cell fixing device.

[Explanation of symbols]

 1 Liquid crystal cell 2 Backlight 5 Liquid crystal driver 7 Cell fixing rubber 71 Hole 72 Inner hole 8 Thermal fusion tube

Claims (1)

[Scope of utility model registration request] 1. A liquid crystal cell and a structure for fixing the liquid crystal cell,
A plurality of holes are provided on the upper surface and the lower surface, each hole is made to communicate with the internal hole provided inside, and fixed on the side surface with a cell fixing rubber provided with a heat fusion tube communicating with the internal hole Then, the device for fixing the liquid crystal cell is characterized in that the air in the inner hole is sucked and decompressed from the heat fusion tube to fix the liquid crystal cell.