Sticking device and sticking method

Abstract

The invention provides a sticking device and a sticking method with very high sticking position accuracy. The sticking device (1) of the present invention is provided with: a first table (2), which holds the first member (100) horizontally; a second table (20), which supports the second member below the first member; and a control unit . The second stage includes a sticking start side support stand (5) that supports the end of the second member including the sticking start end (200a), and a sticking end side support stand (3) that supports other parts of the second member. The controller makes the above-mentioned end of the second member closer to the first member than other parts by raising only the supporting table on the sticking start side, and then finely adjusts the position of the second table (3, 5) to perform the alignment of the two members. After aligning the position, the above-mentioned end portion of the second member is first attached to the first member by raising the second stage as a whole.

Description

technical field [0001] The present invention relates to a sticking device and a sticking method for sticking a film-shaped or sheet-like thinner second member constituting the display device to a first member constituting a display device such as a liquid crystal display or an organic EL display. Background technique [0002] In the manufacturing process of display devices such as liquid crystal displays and organic EL displays, a sticking device is used to stick a thin film or sheet-like second member (for example, a polarizing film) to a thick first member. Such a pasting device has conventionally been known in various forms, for example, Patent Document 1 discloses a pasting device using a so-called "roller pasting system". [0003] Such as Figure 11 As shown, the sticking device 300A described in Patent Document 1 includes: a plurality of free rollers 304 on which the first member 301 is placed; a first holding table 303 that absorbs and holds the first member 301 above...

AI Technical Summary

Problems solved by technology

In addition, the film-like or sheet-like second member may be curled due to residual stress during production, moisture absorption, etc.

[0009] Therefore, in the conventional pasting device 300A, if Figure 12 As shown, sometimes the sticking start end of the curled second member 302 is pasted at a position deviated from the specified position, so that the required high positional accuracy cannot be met.

In addition, since each member has a different degree of curl, it is difficult to eliminate the influence of curl by pre-adjusting the position of the first member 301 or the second member 302 in consideration of the degree of curl.

[0010] When the positional relationship between the first holding table 303 and the second holding table 305 is reversed up and down Figure 13 In the pasting device 300B shown, similarly to the pasting device 300A, there is a problem of positional displacement due to curling of the second member 302

In addition, in the pasting device 300B, the second member 302 is also curled due to its own weight, so it is more difficult to eliminate the influence of curling by adjusting the position of the first member 301 or the second member 302 in advance.

Images