CN213122496U

CN213122496U - Liquid crystal display bonding device

Info

Publication number: CN213122496U
Application number: CN202021599062.6U
Authority: CN
Inventors: 钟长本; 黄焕杰; 黄建威; 司斌; 李伟界
Original assignee: Truly Huizhou Smart Display Ltd
Current assignee: Truly Huizhou Smart Display Ltd
Priority date: 2020-08-04
Filing date: 2020-08-04
Publication date: 2021-05-04
Anticipated expiration: 2030-08-04

Abstract

The utility model relates to a LCD laminating technical field discloses a LCD laminating device, including support frame, lower platen and push down the subassembly, lower platen sets up on the support frame, and first recess has been seted up to lower platen, and first recess has first annular inclined plane, and the push down subassembly includes platen, driving piece and boss, the driving piece set up in on the support frame, go up the platen and set up on the driving piece, the boss sets up on last platen, and the second recess has been seted up to the boss, and the boss has second annular inclined plane, and the driving piece is used for driving the direction removal of platen to being close to lower platen on to make the first annular inclined plane of first recess laminate each other with the second annular inclined plane of second recess to make first recess and second recess enclose into airtight region. The device can save the counterpoint laminating time and improve laminating precision stability to improve production efficiency and product yield.

Description

Liquid crystal display bonding device

Technical Field

The utility model relates to a LCD laminating technical field especially relates to a LCD laminating device.

Background

Nowadays, people are in the information age, the dependence of people's daily life on the display is gradually improved, and liquid crystal displays with high resolution, high contrast and high image quality are more and more favored by people. The liquid crystal display has the advantages of excellent comprehensive performances of brightness, contrast, power consumption, service life, volume, weight and the like, good large-scale production characteristics, high automation degree and wide development space, and is a mainstream product in the new century rapidly.

The liquid crystal CELL (CELL) engineering is a major part of the manufacturing process of liquid crystal displays, namely, CF and TFT glass substrates are attached and bonded together, and liquid crystal is put in a gap between the two glass substrates (in a CELL) and the thickness of the CELL is controlled. At present, the CELL engineering in the industry is mainly performed by using an odf (one Drop Fi l) process, namely, liquid crystal is firstly dropped on a glass substrate, then a box is pasted in a vacuum environment, and finally the box is formed after UV curing.

The bonding process of the TFT substrate and the CF substrate mainly comprises the following steps: carrying in the substrate, roughly aligning, precisely aligning, pressing, breaking vacuum and roughly standing to check the precision. Among the existing laminating device, the problems of long laminating takt time and unstable laminating precision mainly exist. Because a large amount of time is consumed for coarse alignment and fine alignment, the tact time from the bonding to the UV curing is long, and if the liquid crystal is in a vacuum state for a long time, the liquid crystal component can be lost, so that the product performance is influenced; if the laminating precision is unstable, liquid crystal leakage can be caused, namely, in the vacuumizing process, partial components can flow out along with gas in the cavity, particularly around the substrate, the periphery is seriously subjected to insufficient filling, and serious quality hidden troubles are caused to products.

SUMMERY OF THE UTILITY MODEL

The utility model aims at overcoming the weak point among the prior art, providing a LCD's laminating device, can save counterpoint laminating time and improve laminating precision stability to improve production efficiency and product yield.

The purpose of the utility model is realized through the following technical scheme:

a liquid crystal display bonding apparatus, comprising:

a support frame;

the lower bedplate is arranged on the support frame and provided with a first groove, and the first groove is provided with a first annular inclined plane;

the pressing assembly comprises an upper platen, a driving piece and a boss, the driving piece is arranged on the support frame, the upper platen is arranged on the driving piece, the boss is arranged on the upper platen, a second groove is formed in the boss, the boss is provided with a second annular inclined surface, the driving piece is used for driving the upper platen to move towards the direction close to the lower platen, so that the first annular inclined surface of the first groove is attached to the second annular inclined surface of the second groove, and the first groove and the second groove are enclosed into a sealed area.

In one of them embodiment, LCD laminating device still includes the jacking subassembly, and the jacking subassembly includes lifting driving piece and a plurality of jacking post, and the lifting driving piece sets up on the support frame, and the lifting driving piece is connected with each jacking post, and a plurality of connecting holes have been seted up to lower platen, and each jacking post respectively one-to-one wears to establish each connecting hole.

In one embodiment, the jacking assembly further includes a jacking plate disposed on the lifting driving member, and each jacking column is disposed on the jacking plate.

In one embodiment, the lift drive is a pneumatic cylinder.

In one of the implementation modes, the liquid crystal display laminating device further comprises a vacuum assembly, the vacuum assembly comprises a vacuum box body and a vacuum pump, the vacuum box body is arranged on the lower platen, a vacuum cavity is formed in the vacuum box body, a plurality of adsorption through holes are formed in the lower platen, each adsorption through hole is communicated with the vacuum cavity, and the vacuum pump is arranged on the vacuum box body.

In one of them embodiment, the driving piece includes x axle driver, y axle driver and z axle driver, and the x axle driver sets up on the support frame, and the y axle driver sets up on the x axle driver, and the z axle driver sets up on the y axle driver, and the upper platen sets up on the z axle driver, and the x axle driver is used for driving the y axle driver along horizontal lateral shifting, and the y axle driver is used for driving the z axle driver along horizontal vertical removal, and the z axle driver is used for driving the upper platen to move to being close to or keeping away from lower platen direction.

In one embodiment, the x-axis driver includes a first cylinder, a first connecting rod disposed at an output end of the first cylinder, and a first pushing block disposed at an end of the first connecting rod away from the first cylinder.

In one embodiment, the first annular inclined surface has an inclination angle of 30 ° to 60 °.

In one embodiment, the liquid crystal display attaching device further comprises a scanning assembly, the scanning assembly comprises a scanner and a scanning support, the positioning scanning support is arranged on the upper platen, and the scanner is fixed on the upper platen through the scanning support.

In one embodiment, the support frame includes a mounting cabinet and a bottom plate, and the mounting cabinet is disposed on the bottom plate.

The utility model discloses compare in prior art's advantage and beneficial effect as follows:

the utility model relates to a liquid crystal display laminating device, through set up first annular inclined plane on first recess and set up second annular inclined plane on the second recess, in the process that the upper platen moves down, make first annular inclined plane and second annular inclined plane laminate each other, and then make the CF base plate placed on the upper platen realize accurate counterpoint with the TFT base plate of putting on the lower platen, and finally accomplish the operation of laminating each other, need not calculate the matching nature of TFT base plate and CF base plate many times when accurate counterpoint, saved counterpoint laminating time, avoid the liquid crystal to be in the vacuum state for a long time, lead to the loss of liquid crystal component, thereby influence the product performance; meanwhile, the fluctuation of the laminating precision caused by various abnormalities of the equipment is effectively prevented, the impact deformation of the atmosphere on the substrate during vacuum breaking is avoided, and the stability of the laminating precision is improved. Therefore, the liquid crystal display laminating device provided by the invention can save the alignment laminating time and improve the laminating precision stability, thereby improving the production efficiency and the product yield.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

Fig. 1 is a schematic structural view of a liquid crystal display bonding apparatus according to an embodiment of the present invention.

FIG. 2 is a schematic view of the LCD bonding apparatus shown in FIG. 1 viewed from another angle.

Fig. 3 is a schematic structural view of an upper platen of the lcd bonding apparatus shown in fig. 1.

Detailed Description

In order to facilitate understanding of the present invention, the present invention will be described more fully hereinafter with reference to the accompanying drawings. The preferred embodiments of the present invention are shown in the drawings. The invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not represent the only embodiments.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

In one embodiment, please refer to fig. 1, a liquid crystal display bonding apparatus includes: a support frame 100, a lower platen 200, a hold-down assembly 300, a lift-up assembly 400, a vacuum assembly 500, and a scanning assembly. It should be noted that the supporting frame 100 is used to fix the lower platen 200 and the pressing assembly 300, the lower platen 200 is used to fix and limit the TFT substrate, the pressing assembly 300 is used to fix and drive the CF substrate to move toward the lower platen 200, the jacking assembly 400 is used to support the CF substrate, so that the rubber frame surface of the CF substrate does not contact with the lower platen 200, the vacuum assembly 500 is used to evacuate, so that the TFT substrate and the CF substrate are vacuum bonded, and the scanning assembly 600 is used to roughly align the TFT substrate and the CF substrate.

Referring to fig. 2, the lower platen 200 is disposed on the supporting frame 100, the lower platen 200 is disposed with a first groove 210, the first groove 210 has a first annular inclined surface 211, and in this embodiment, an inclination angle of the first annular inclined surface 211 is 30 ° to 60 °. Preferably, the inclination angle of the first annular slope 211 is 45 °. Specifically, the side wall of the first groove is provided with a first annular inclined surface.

Referring to fig. 2 and 3, the pressing assembly 300 includes an upper platen 310, a driving member 320, and a boss 330, the driving member 320 is disposed on the supporting frame 100, the upper platen 310 is disposed on the driving member 320, the boss 330 is disposed on the upper platen 310, the boss 330 is disposed with a second recess 331, the boss 330 has a second annular inclined surface 332, and the driving member 320 is configured to drive the upper platen 310 to move toward the lower platen 200, so that the first annular inclined surface 211 of the first recess 210 and the second annular inclined surface 332 of the second recess 331 are attached to each other, and the first recess 210 and the second recess 331 enclose a sealed area. Specifically, the side wall of the boss is provided with a second annular inclined surface.

It should be noted that, by arranging the first annular inclined surface 211 on the first groove 210 and the second annular inclined surface 332 on the second groove 331, in the process that the upper platen 310 moves downward, the first annular inclined surface 211 and the second annular inclined surface 332 are attached to each other, wherein the sizes of the first groove 210 and the second groove 331 are consistent with the sizes of the substrates, so when the first annular inclined surface 211 and the second annular inclined surface 332 are completely attached, the CF substrate placed on the second groove 331 and the TFT substrate placed on the first groove realize accurate alignment, and finally, the mutual attachment operation is completed, the matching between the TFT substrate and the CF substrate does not need to be calculated for many times during accurate alignment, the alignment and attachment time is saved, and the phenomenon that liquid crystal components are lost due to long-time vacuum state of the liquid crystal, thereby affecting the product performance; meanwhile, the fluctuation of the laminating precision caused by various abnormalities of the equipment is effectively prevented, the impact deformation of the atmosphere on the substrate during vacuum breaking is avoided, and the stability of the laminating precision is improved. Therefore, the liquid crystal display laminating device provided by the invention can save the alignment laminating time and improve the laminating precision stability, thereby improving the production efficiency and the product yield.

Referring to fig. 1 and 2, the jacking assembly 400 includes a lifting driving member 410 and a plurality of jacking pillars 420, the lifting driving member 410 is disposed on the supporting frame 100, the lifting driving member 410 is connected to each jacking pillar 420, the lower platen 200 is provided with a plurality of connecting holes, and each jacking pillar 420 is correspondingly inserted through each connecting hole. The lift drive 410 is a pneumatic cylinder.

It should be noted that in the step of bonding the CF substrate and the TFT substrate, the CF substrate is first moved into the first groove 210 for limiting, at this time, the lifting driving element 410 drives the lifting column 420 to lift, the CF substrate is coated with the glue frame before the bonding step, the glue frame of the CF substrate faces downward during the bonding process, the lift pins 420 are thus raised for supporting the CF substrate, so that the CF substrate frame surface is not in contact with the lower platen 200, then, the pressing assembly 300 moves downward to drive the upper platen 310 to be attached to the lower platen 200, the lifting driving member 410 drives the lifting column 420 upward to move the CF substrate into the second recess 331 for fixing, after the CF substrate is fixed, the pressing assembly 300 moves upward, the upper platen 310 is separated from the lower platen 200, then, the TFT substrate is moved into the first groove 210, and the lifting driving member 410 drives the lifting column 420 to move downward, so that the TFT substrate completely falls into the first groove 210 for fixing. Thereby completing the fixing of the TFT substrate and the CF substrate.

Referring to fig. 1 and 2, the vacuum assembly 500 includes a vacuum box 510 and a vacuum pump 520, the vacuum box 510 is disposed on the lower platen 200, a vacuum chamber is formed in the vacuum box 510, a plurality of suction holes 220 are formed in the lower platen 200, each suction hole 220 is communicated with the vacuum chamber, and the vacuum pump 520 is disposed on the vacuum box 510. After the first annular inclined surface 211 and the second annular inclined surface 332 are attached to each other, the first groove 210 and the second groove 331 enclose a sealed area, and when the vacuum pump 520 vacuumizes the vacuum box 510, air in the sealed area is pumped away through the adsorption through holes 220 and the vacuum cavity, so that a vacuum environment is formed in the sealed area, and the TFT substrate and the CF substrate in the grooves are attached to each other.

Further, vacuum assembly 500 still includes brokenly the vacuum valve, and after TFT base plate and CF base plate accomplished the vacuum laminating, opens brokenly the vacuum valve and brokenly the vacuum to the airtight region, because first recess 210 and second recess 331 size are unanimous with the base plate size, therefore the base plate is fixed in completely in the airtight region, has avoided the impact deformation of atmosphere to the base plate during brokenly the vacuum, has improved the precision stability, reduces the product defective rate.

The scanning component comprises a scanner and a scanning support, the scanning support is arranged on the upper platen, the scanner is arranged on the scanning support, and the scanner is used for detecting the position of the TFT substrate and outputting a position signal.

Further, the driving member 320 includes an x-axis driver, a y-axis driver and a z-axis driver, the x-axis driver is disposed on the supporting frame 100, the y-axis driver is disposed on the x-axis driver, the z-axis driver is disposed on the y-axis driver, the upper platen is disposed on the z-axis driver, the x-axis driver is configured to drive the y-axis driver to move horizontally and laterally, the y-axis driver is configured to drive the z-axis driver to move horizontally and vertically, and the z-axis driver is configured to drive the upper platen 310 to move toward or away from the lower platen 200. The driving unit 320 receives the position signal of the TFT substrate output by the scanning assembly 600, and drives the x-axis driver and the y-axis driver according to the position signal of the TFT substrate, so that the vertical position of the CF substrate fixed by the upper platen 310 corresponds to the TFT substrate, thereby completing the coarse alignment between the TFT substrate and the CF substrate.

Furthermore, the x-axis driver comprises a first cylinder first connecting rod and a first pushing block, the first connecting rod is arranged at the output end of the first cylinder, and the first pushing block is arranged at one end of the first connecting rod, which is far away from the first cylinder. In this manner, the upper platen 310 may be moved in a horizontal lateral direction by the x-axis drive.

Furthermore, the y-axis driver comprises a second cylinder second connecting rod and a second pushing block, the second connecting rod is arranged at the output end of the second cylinder, and the second pushing block is arranged at one end, far away from the second cylinder, of the second connecting rod. In this manner, the upper platen 310 may be moved vertically in the horizontal direction by the y-axis drive.

Furthermore, the z-axis driver comprises a third cylinder, a third connecting rod and a third pushing block, the third connecting rod is arranged at the output end of the third cylinder, and the third pushing block is arranged at one end of the third connecting rod, which is far away from the third cylinder. In this manner, the upper platen 310 can be moved toward or away from the lower platen 200 by the z-axis drive.

Further, the supporting frame 100 includes a mounting cabinet 110 and a bottom plate 120, the mounting cabinet is disposed on the bottom plate, and the mounting cabinet is used for preventing dust. So, through setting up installation cabinet and bottom plate, can be so that whole device structure is more stable.

Compared with the prior art, the utility model discloses at least, following advantage has:

The above embodiments only represent some embodiments of the present invention, and the description thereof is more specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. A liquid crystal display bonding apparatus, comprising:

a support frame;

the lower bedplate is arranged on the support frame and provided with a first groove, and the first groove is provided with a first annular inclined plane; and

the pressing assembly comprises an upper platen, a driving piece and a boss, the driving piece is arranged on the supporting frame, the upper platen is arranged on the driving piece, the boss is arranged on the upper platen, a second groove is formed in the boss, the boss is provided with a second annular inclined surface, the driving piece is used for driving the upper platen to move towards the direction close to the lower platen, so that the first annular inclined surface of the first groove is attached to the second annular inclined surface of the second groove, and the first groove and the second groove are enclosed into a sealed area.

2. The device of claim 1, further comprising a jacking assembly, wherein the jacking assembly comprises a lifting driving member and a plurality of jacking pillars, the lifting driving member is disposed on the supporting frame, the lifting driving member is connected to each of the jacking pillars, the lower platen has a plurality of connecting holes, and each of the jacking pillars is correspondingly inserted into each of the connecting holes.

3. The apparatus of claim 2, wherein the lifting assembly further comprises a lifting plate disposed on the lifting driving member, and each of the lifting pillars is disposed on the lifting plate.

4. The apparatus of claim 2, wherein the lifting actuator is a pneumatic cylinder.

5. The apparatus of claim 1, further comprising a vacuum assembly, wherein the vacuum assembly comprises a vacuum box and a vacuum pump, the vacuum box is disposed on the lower platen, a vacuum cavity is disposed in the vacuum box, the lower platen has a plurality of adsorption through holes, each of the adsorption through holes is communicated with the vacuum cavity, and the vacuum pump is disposed on the vacuum box.

6. The apparatus of claim 1, wherein the driving member comprises an x-axis driver, a y-axis driver, and a z-axis driver, the x-axis driver is disposed on the supporting frame, the y-axis driver is disposed on the x-axis driver, the z-axis driver is disposed on the y-axis driver, the upper platen is disposed on the z-axis driver, the x-axis driver is configured to drive the y-axis driver to move horizontally and laterally, the y-axis driver is configured to drive the z-axis driver to move horizontally and vertically, and the z-axis driver is configured to drive the upper platen to move toward or away from the lower platen.

7. The apparatus of claim 6, wherein the x-axis driver comprises a first cylinder, a first connecting rod disposed at an output end of the first cylinder, and a first pushing block disposed at an end of the first connecting rod away from the first cylinder.

8. The apparatus of claim 1, wherein the first annular inclined plane has an inclination angle of 30 ° to 60 °.

9. The lcd bonding apparatus of claim 1, further comprising a scanning assembly, wherein the scanning assembly comprises a scanner and a scanning bracket, the scanning bracket is disposed on the upper platen, and the scanner is disposed on the scanning bracket.

10. The apparatus of claim 1, wherein the supporting frame comprises a mounting cabinet and a bottom plate, and the mounting cabinet is disposed on the bottom plate.