JP2009080406A - Stage for manufacturing liquid crystal display - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a stage for manufacturing a liquid crystal display without causing chip or crack in a glass substrate when placing a liquid crystal cell on the stage or taking it out therefrom. <P>SOLUTION: The fixing stage 16 for placing a liquid crystal cell 10 includes a suction aperture 22, two left stoppers 26 provided on the left side of the fixing stage 16, upper stoppers 24, 24 provided above the fixing stage 16, and taking out dent parts 28, 30 provided on the right and left sides of the fixing stage 16. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a stage for manufacturing a liquid crystal display device used when other components are attached to a liquid crystal cell.

  When assembling a liquid crystal display device, it is necessary to attach a flexible substrate to the liquid crystal cell. In this case, the liquid crystal cell is placed on the stage, and the flexible substrate is placed on another stage, and both are aligned and fixed.

By the way, since the liquid crystal cell has a structure in which a glass substrate is bonded, it is necessary to prevent the glass substrate from being chipped or broken. Therefore, a structure for preventing chipping and cracking from the stage of cutting out the glass substrate has been proposed (see, for example, Patent Document 1).
JP-A-3-2720

  As described above, it is necessary to prevent the glass substrate constituting the liquid crystal cell from being chipped or broken, and even when a flexible substrate is attached to the liquid crystal cell, it is necessary to prevent such chipping or cracking.

  However, in a stage on which a conventional liquid crystal cell is placed, chipping or cracking may occur due to a stopper for positioning the liquid crystal cell on the stage. Further, when the liquid crystal cell is taken out from the stage, the glass substrate may be chipped or cracked depending on how the pressure is applied.

  In view of the above problems, the present invention provides a stage for manufacturing a liquid crystal display device in which a liquid crystal cell is placed on a stage and a glass substrate is not chipped or cracked when taken out.

  The present invention relates to a stage for manufacturing a liquid crystal display device for mounting a liquid crystal cell on which a glass substrate is bonded, suction means for sucking and fixing the liquid crystal cell to the stage, and one side of the liquid crystal cell Two stoppers formed in parallel on the stage for positioning the two sides, two stoppers formed in parallel on the stage for positioning one side adjacent to the one side, and the liquid crystal The liquid crystal display device manufacturing stage has a take-out recess provided in the stage corresponding to both side portions of the cell.

  According to the present invention, no chipping or cracking occurs in the glass substrate of the liquid crystal cell.

  Hereinafter, an embodiment of the present invention will be described with reference to FIGS.

  The liquid crystal cell 10 of the liquid crystal display device according to the present embodiment is used for a mobile phone, has a size of 2 to 3 inches, and includes an array substrate made of a glass plate and a counter substrate made of a glass plate. Is pasted through a liquid crystal layer. A case where the flexible substrate 12 is attached to the liquid crystal cell 10 will be described.

(1) Configuration of Manufacturing Device 14 First, based on FIG. 1, the configuration of manufacturing device 14 used when attaching flexible substrate 12 to liquid crystal cell 10 will be described based on FIG.

  The manufacturing apparatus 14 includes a fixed stage 16 for mounting the liquid crystal cell 10, a moving stage 18 for mounting the flexible substrate 12, and a work stage 20 provided between the fixed stage 16 and the moving stage 18. It is made up of.

  The fixed stage 16 is provided horizontally and its position is fixed. The size is slightly larger than that of the liquid crystal cell 10, and a plurality of suction holes 22 for sucking the liquid crystal cell 10 are formed in the central portion. Further, for positioning the upper side of the liquid crystal cell 10, two upper stoppers 24 and 24 are fixed by screws so as to protrude in parallel from the upper surface of the fixed stage 16. The upper stopper 24 is made of Teflon (registered trademark) or a peak material, and its tip is formed in a curved shape, and can contact the liquid crystal cell 10 in contact.

  On the left side of the fixed stage 16, two left stoppers 26 and 26 are fixed by screws so as to protrude from the upper surface of the fixed stage 16 in parallel for positioning the left side of the liquid crystal cell 10. The two left stoppers 26 are also made of Teflon (registered trademark) or a peak material, and the tip portion contacting the left side of the liquid crystal cell 10 has a curved shape and can be contacted.

  A takeout recess 28 is provided between the two left stoppers 26, 26. Further, a takeout recess 30 is also provided at a position opposite to the left takeout recess 28, that is, on the right side of the fixed stage 16.

  A plurality of suction holes 32 for fixing the flexible substrate 12 are provided on the upper surface of the moving stage 18. The moving stage 18 is movable in the vertical direction and the horizontal direction in order to position the flexible substrate 12 with respect to the liquid crystal cell 10.

  The work stage 20 is disposed so that the lower end portion of the liquid crystal cell 10 and the upper end portion of the flexible substrate 12 overlap each other, and is a table for thermocompression bonding the liquid crystal cell 10 and the flexible substrate 12 with an anisotropic conductive film. Therefore, the work stage 20 is fixed, and a heat tool (not shown) is provided above the work stage 20 so as to be movable up and down.

(3) Work process Next, the process of connecting the flexible substrate 12 to the liquid crystal cell 10 using the manufacturing apparatus 14 having the above configuration will be described.

  As a first step, the liquid crystal cell 10 is placed on the fixed stage 16 by an operator's hand as shown in FIG. In this case, the upper side of the liquid crystal cell 10 is set to the positions of the two upper stoppers 24, 24, and the left side of the liquid crystal cell 10 is set to the positions of the two left stoppers 26, 26. At this time, the liquid crystal cell 10 is placed from the upper right side of the fixed stage 16. The reason is that the left stoppers 26 and 26 are provided on the left side so that the two left stoppers 26 and 26 can be used for positioning. Thereby, the liquid crystal cell 10 is positioned with respect to the fixed stage 16. This upper positioning is accurate because it is linearly determined by the two upper stoppers 24, 24. This left-side positioning is also accurate because it is determined linearly by the two left stoppers 26,26. In this positioned state, the liquid crystal cell 10 is securely fixed to the fixed stage 16 by performing suction from the suction hole 22. Since two upper stoppers 24 and two left stoppers 26 are provided, when the liquid crystal cell 10 is placed on the fixed stage 16, each side of the liquid crystal cell 10 is rotated at one place. Since the stoppers 24 and 26 do not hit each other so as to apply pressure, the liquid crystal cell 10 is not chipped or cracked. And since it can position by putting a finger | toe in the pair of recessed parts 28 and 30 for extraction at the time of this mounting operation | work, it is easy to work.

  As the second step, the flexible substrate 12 is placed on the moving stage 18, and suction is performed from the suction hole 32 to fix the flexible substrate 12 to the moving stage 18.

  As a third step, the movable stage 18 to which the flexible substrate 12 is fixed is moved in the vertical direction or the horizontal direction as shown in FIG.

  As a fourth step, the flexible substrate 12 is thermocompression bonded to the liquid crystal cell 10 via the anisotropic conductive film on the work stage 20 using a heat tool. Thereby, the liquid crystal cell 10 and the flexible substrate 12 are fixed.

  As the fifth step, the suction state from the suction hole 22 and the suction hole 32 is released, and then the operator takes his / her finger out into the recesses 28 and 30 and lifts the liquid crystal cell 10 from the fixed stage 16 to the liquid crystal cell. 10 and the flexible substrate 12 are removed. In this case, since two upper stoppers 24 and 24 and two left stoppers 26 and 26 are provided, the liquid crystal cell 10 does not rotate and pressure is not applied to one place. In addition, since the fingers are put in and removed from the pair of left and right recesses 28 and 30, the operation is easy to perform.

(Example of change)
The present invention is not limited to the above-described embodiments, and various modifications can be made without departing from the gist thereof.

  In the above embodiment, the fixed stage 16 in the case where the flexible substrate 12 is attached to the liquid crystal cell 10 has been described. However, the present invention can also be applied to the case where other components are attached to the liquid crystal cell 10.

  In the above embodiment, the upper stopper and the left stopper are provided, but two upper stoppers and two right stoppers may be provided.

It is a top view of manufacturing device 14 showing one embodiment of the present invention. It is a top view of the manufacturing apparatus of the state which mounted the liquid crystal cell on the fixed stage. It is a top view of the manufacturing apparatus of the state which mounted the liquid crystal cell which connected the flexible substrate.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Liquid crystal cell 12 Flexible substrate 14 Manufacturing apparatus 16 Fixed stage 18 Moving stage 20 Work stage 22 Suction hole 24 Upper stopper 26 Left stopper 28 Rejection recessed part 30 Rejection recessed part 32 Suction hole

Claims (4)

In a stage for manufacturing a liquid crystal display device for mounting a liquid crystal cell bonded with a glass substrate,
Suction means for sucking and fixing the liquid crystal cell to the stage;
Two stoppers formed in parallel on the stage for positioning one side of the liquid crystal cell;
Two stoppers formed in parallel on the stage for positioning one side adjacent to the one side;
A recess for removal provided on the stage corresponding to both sides of the liquid crystal cell;
A stage for manufacturing a liquid crystal display device comprising: Each of the stoppers supports the sides of the liquid crystal cell,
A stage for manufacturing a liquid crystal display device according to claim 1. The tip of each stopper is curved.
A stage for manufacturing a liquid crystal display device according to claim 1. The recess for extraction is formed between the two stoppers formed in parallel.
A stage for manufacturing a liquid crystal display device according to claim 1.

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