WO2015027526A1

WO2015027526A1 - Breaking device for liquid crystal panel and breaking method

Info

Publication number: WO2015027526A1
Application number: PCT/CN2013/082927
Authority: WO
Inventors: 邓鸿韬; 洪宗义
Original assignee: 深圳市华星光电技术有限公司
Priority date: 2013-08-29
Filing date: 2013-09-04
Publication date: 2015-03-05
Also published as: CN103412432A; CN103412432B

Abstract

A breaking device for a liquid crystal panel and a breaking method using the breaking device, the breaking device comprising a plurality of groups of breaking units (200), and the breaking units (200) are used for applying a downward pressure to a residual material (120) of a cut liquid crystal panel (100) so as to carry out breaking, wherein each of the groups of breaking units (200) comprises a plurality of rolling wheels (210, 220). By controlling the plurality of rolling wheels (210, 220) to roll on the residual material (120) of the cut liquid crystal panel (100) in a certain direction and at a certain speed, and by applying a downward pressure to the residual material, the residual material (120) is separated from an effective panel (110) of the cut liquid crystal panel (100) and tends to fall naturally, thereby preventing the residual material (120) from scratching the effective panel (110) in the process of separation, and reducing the rate of defects of the liquid crystal panel (100) in the process of cutting.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to the field of manufacturing liquid crystal displays, and more particularly to a liquid crystal panel splitting device and a method of using the same.

A background LCD, or LCD (Liquid Crystal Book Display), is a flat, ultra-thin display device consisting of a number of colored or black-and-white pixels placed in front of a light source or reflective surface. LCD monitors have low power consumption and are characterized by high image quality, small size, and light weight, so they are favored by everyone and become the mainstream of displays. Generally, the main body of the liquid crystal display is a liquid crystal cell, and is mainly composed of two transparent substrates and a liquid crystal sealed between the substrates. At present, the liquid crystal display is mainly a Thin Film Transistor (TFT) liquid crystal display, and the fabrication of a general thin film transistor liquid crystal display can be roughly divided into three parts: a thin film transistor array (TFT Array) preparation process and a color filter plate preparation process, Liquid crystal display unit assembly (LC Cell Assembly) preparation process, liquid crystal display module (Liquid Crystal Module, LCM) preparation process. In the processing of the liquid crystal panel, it is common to first process a large large panel, and then cut the large panel into a desired small-sized panel. In this process, it is mainly divided into two steps of cutting and splitting: cutting is to use a cutter wheel with a certain hardness, under a certain pressure, across the surface of the liquid crystal panel to form a deep cutting groove on the surface; then the splitting process , separating the effective panel and the residual material of the cut liquid crystal panel. The currently used splitting process involves the separation of effective panels and residues. The separation of the residual material can be carried out by means of a clamp of the residual material, and the separation of the residual material is relatively stable, which will reduce the scratch between the residual material and the effective panel, and reduce the liquid crystal panel in the cracking process. loss. However, with the development of the liquid crystal panel in the direction of large size, the number of residual material clips used in the splitting process will increase, so that the level between several residual material clips cannot be guaranteed, thus increasing the probability of line scratching. Thereby reducing the yield. Another way to use the split of the residual material is to use the roller to assist the split, as shown in Figure 1 and Figure 2. As shown, the cut liquid crystal panel 100 includes an effective panel 110 and a residual material 120. The splitting unit 200 provided with a roller applies a downward pressure to the residual material 120, and along the opposite direction of the cutting, that is, along the residual material. The first end 120A of 120 is scrolled in the direction of the second end 120B. The residual material 120 is naturally dropped by the downward pressure and its own gravity, so that it is less likely to cause line scratches. Therefore, the use of scrolling to assist the split is a common way of currently large-size LCD panels.

However, there are certain problems with the existing method of using a scroll wheel to assist the split. As shown in Fig. 3, since the current cutting uses a high-permeability wheel cutter, some of the residual material will be cracked quickly after cutting, and the liquid crystal panel 100 currently used is large, and the cutter head is cut, the second end 120B Part of the residual material is prone to cracking and hanging down, but does not completely separate from the effective panel 110; when the roller rolls, since the roller rolls along the first end 120A of the residue 120 toward the second end 120B, When the roller rolls at a position close to the first end 120A, the residue of the first end 120A portion falls downward, which may cause the residual material that has been sagged and sag in the vicinity of the second end 120B to rebound and hit effectively. The panel 110, thereby scratching the effective panel 110, increases the defective rate of the product and increases the production cost. SUMMARY OF THE INVENTION In order to solve the above problems in the prior art, the present invention provides a splitting device for a liquid crystal panel and a method for using the same, which is simple and flexible, and is suitable for various properties and various cuttings. Parameter LCD panel. In order to achieve the above object, the present invention provides a liquid crystal panel splitting apparatus comprising a plurality of sets of splitting units for applying a downward pressure to a residual material of the liquid crystal panel after cutting, wherein each set of splitting units The first roller and the second roller; the splitting device further includes a power mechanism, the power mechanism provides power to the splitting unit; the first roller and the second roller are respectively connected to the power through a connecting rod a mechanism that controls the first roller and the second roller to move in a horizontal or vertical direction. Wherein, the power mechanism respectively controls the magnitude of the pressure applied by the first roller and the second roller to the residual material, and the starting position, the ending position, the rolling speed and the rolling direction of the movement. In another embodiment, the present invention provides a slitting device for a liquid crystal panel, comprising a plurality of sets of splitting units, wherein the splitting unit is configured to apply a downward pressure to the residual material of the liquid crystal panel after cutting to perform splitting, wherein Each set of splitting units includes a plurality of rollers. Wherein the splitting device further includes a power mechanism, the power mechanism provides power to the splitting unit, and the plurality of rollers are respectively connected to the power mechanism through a connecting rod, and the power mechanism controls The plurality of rollers are moved in a horizontal direction or a vertical direction. Wherein each of the sets of splitting units comprises a first roller and a second roller. Wherein, the power mechanism respectively controls the magnitude of the pressure applied by the first roller and the second roller to the residual material, and the starting position, the ending position, the rolling speed and the rolling direction of the movement. Another object of the present invention is to provide a splitting method for a liquid crystal panel, comprising the splitting device provided by the present invention as described above, the step comprising: transferring the cut liquid crystal panel to the splitting device to control the splitting unit The plurality of axles roll on the residue of the liquid crystal panel and apply a certain pressure to disengage the residue from the effective panel in the liquid crystal panel. The splitting device further includes a power structure, and the power mechanism provides power to the splitting unit; wherein each of the splitting units includes a first roller and a second roller, and the first roller and the second roller respectively pass through a a connecting rod is coupled to the power mechanism, the power mechanism respectively controlling a magnitude of pressure applied by the first roller and the second roller to the residual material, and a starting position, a ending position, a rolling speed, and a rolling on the residual material Scroll direction. Wherein, under the control of the power mechanism, the first roller and the second roller respectively roll toward each other from the first end and the second end of the residual material. The first roller and the second roller respectively roll back from the first end and the second end of the residual material under the control of the power mechanism. Wherein, under the control of the power mechanism, the first roller rolls from a first end of the residual material to an intermediate portion of the residual material, and the second roller passes from an intermediate portion of the residual material The second end of the residue is rolled. Wherein, under the control of the power mechanism, the first roller rolls from the second end of the residual material to the intermediate portion of the residual material, and the second roller passes from the middle portion of the residual material The first end of the residue is rolled. Advantageous Effects: The splitting device provided by the present invention and the splitting method using the same, by controlling a plurality of rollers to roll in a certain direction and speed on the residue of the liquid crystal panel after cutting and applying downward pressure to the residual material The detachment from the effective panel of the liquid crystal panel after cutting tends to fall naturally, avoiding scratching of the effective panel during the detachment process, and reducing the defect rate of the liquid crystal panel during cutting; meanwhile, the cleavage device structure Simple, easy to implement, and its splitting method is simple and flexible, can be applied to different cuts Cutting parameters and different properties of glass are suitable for large-scale industrial production, and thus can be widely used in the field of manufacturing liquid crystal displays. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a schematic view of a prior art roller rolling splitting device. Fig. 2 is a schematic view showing a state of good rupture when the lobes are formed by the lobing device of Fig. 1. Fig. 3 is a schematic view showing a state of a crack in which a split is performed by using the splitting device of Fig. 1. FIG. 4 is a schematic diagram of a splitting device according to an embodiment of the present invention. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS As described above, the present invention is directed to a defect in the prior art, and provides a splitting device for a liquid crystal panel, comprising a plurality of sets of splitting units for applying a residual force to a residual material of the liquid crystal panel after cutting The lower pressure thereby causes the split, wherein each set of split units includes a plurality of rollers. The splitting device provided by the invention and the splitting method using the same, by controlling a plurality of rollers to roll in a certain direction and speed on the residual material of the liquid crystal panel after cutting and applying downward pressure to the residual material and after cutting The detachment between the effective panels of the liquid crystal panel tends to fall naturally, avoiding the scratching of the effective panel during the detachment of the residual material, and reducing the defective rate of the liquid crystal panel during cutting. In order to better explain the technical features of the present invention, the following detailed description will be made in conjunction with the embodiments and the accompanying drawings. As shown in FIG. 4, the splitting device in this embodiment includes a plurality of sets of splitting units 200 (only one of which is shown in the drawing) for applying the residual material 120 of the liquid crystal panel 100 after cutting. The downward pressure thereby causes the splitting, wherein each of the sets of splitting units 200 includes two rollers, namely a first roller 210 and a second roller 220. The splitting device further includes a power mechanism (not shown), the power mechanism provides power to the splitting unit 200; the first roller 210 and the second roller 220 pass through a connecting rod (not shown) The power mechanism is coupled to the power mechanism to control the first roller 210 and the second roller 220 to move in a horizontal direction or a vertical direction, wherein the horizontal movement is used to adjust the first roller 210 And the starting position of the movement of the second roller 220, the vertical movement is used to adjust the distance between the first roller 210 and the second roller 220 and the residual material 120 of the liquid crystal panel after cutting, and then adjust The pressure applied to the residue 120. At the same time, the power mechanism can also control the rolling direction, the rolling speed and the ending position of the first roller 210 and the second roller 220. In this embodiment, the power mechanism is a servo motor. In this embodiment, a splitting method using the splitting device is further provided, the method comprising: transferring the cut liquid crystal panel 100 to the splitting device; and the power mechanism respectively adjusting the first roller 210 and the second roller The position of the 220 in the horizontal and vertical directions is placed at the initial position of the upper surface of the residual material 120 of the liquid crystal panel 100 after cutting; the power mechanism controls the first roller 210 and the second roller 220 to be preset according to the preset The parameters are rolled on the residue 120 of the liquid crystal panel 100 after cutting and a downward pressure is applied. In this embodiment, the power mechanism can set the magnitude of the pressure applied by the roller and the parameters of the starting position, the ending position, the rolling speed and the rolling direction of the movement, thereby adjusting the splitting effect so that it can correspond to different cutting parameters. And different nature of the glass. The power mechanism can respectively control the initial position and the rolling direction of the first roller 210 and the second roller 220 to be selected as follows: (1) the power mechanism controls the first roller 210 and the first The two rollers 220 may respectively roll from the first end 120A and the second end 120B of the residue 120; (2) the first roller 210 and the second roller 220 may also be respectively from the residual material 120 The middle portion is rolled back toward the first end 120A and the second end 120B of the residue 120; (3) the first roller 210 is rolled from the first end 120A of the residue 120 toward the middle of the residue 120 At the same time, the power mechanism controls the second roller 220 to roll from the middle of the residual material 120 to the second end 120B of the residual material 120; (4) the first roller 210 is from the residual material 120 The middle portion rolls toward the first end 120A of the residue 120, and the power mechanism controls the second roller 220 to roll from the second end 120B of the residue 120 toward the middle of the residue 120. Finally, the splitting device and the splitting method using the same according to the present invention, by controlling a plurality of rollers to roll in a certain direction and speed on the residual material of the liquid crystal panel after cutting and applying downward pressure thereto, The detachment between the residual material and the effective panel of the liquid crystal panel after cutting tends to fall naturally, thereby avoiding the scratching of the effective panel during the detachment of the residual material, and reducing the defective rate of the liquid crystal panel during cutting. At the same time, the splitting device has a simple structure and is easy to implement, and the splitting method is simple and flexible, and can be applied to different cutting parameters and different properties of glass, and is suitable for large-scale industrial production, so it can be widely used in the manufacturing field of liquid crystal displays. . It should be noted that, in this context, relational terms such as first and second are used merely to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply these entities or operations. There is any such actual relationship or order between them. Moreover, the terms "including", "comprising" or "comprising" or "comprising" are intended to encompass a non-exclusive Processes, methods, articles, or devices include not only those elements but also other elements not specifically listed, or elements that are inherent to such processes, methods, articles, or devices. An element defined by the phrase "comprising a ..." does not exclude the presence of additional elements in the process, method, item, or device that comprises the element.

It is apparent that the scope of the present invention is not limited to the specific embodiment of the invention, and various modifications and changes can be made thereto without departing from the spirit and scope of the invention. Thus, it is intended that the present invention cover the modifications and modifications of the invention

Claims

claims

1. A liquid crystal panel splitting device, including multiple groups of splitting units. The splitting units are used to exert downward pressure on the residual material of the cut liquid crystal panel to split, wherein each group of splitting units includes a first roller and a second roller; the split device also includes a power mechanism, the power mechanism provides power to the split unit; the first roller and the second roller are respectively connected to the power mechanism through a connecting rod, and the power mechanism controls The first roller and the second roller move in a horizontal direction or a vertical direction.

2. The splitting device according to claim 1, wherein the power mechanism controls the amount of pressure exerted by the first roller and the second roller on the residual material, as well as the starting position, ending position, and rolling speed of the movement. and scroll direction.

3. A liquid crystal panel splitting device, including multiple groups of splitting units. The splitting units are used to exert downward pressure on the residual material of the cut liquid crystal panel to split, wherein each group of splitting units includes a plurality of rollers.

4. The splitting device according to claim 3, wherein the splitting device further includes a power mechanism, the power mechanism provides power to the splitting unit; the plurality of rollers are each connected to the splitting unit through a connecting rod. Power mechanism, the power mechanism controls the movement of the plurality of rollers in a horizontal direction or a vertical direction.

5. The splitting device according to claim 4, wherein each group of splitting units includes a first roller and a second roller.

6. The splitting device according to claim 5, wherein the power mechanism controls the amount of pressure exerted by the first roller and the second roller on the residual material, as well as the starting position, end position, and rolling speed of the movement. and scroll direction.

7. A method for splitting a liquid crystal panel, wherein a splitting device is used to split the cut liquid crystal panel. The splitting device includes multiple sets of splitting units, and each set of splitting units includes multiple rollers; the splitting method includes the steps: The cut liquid crystal panel is transferred to the splitting device, and multiple rollers of the splitting unit are controlled to roll on the residual material of the liquid crystal panel and apply pressure to the residual material, so that the residual material and the liquid crystal panel The effective panel is detached.

8. The splitting method according to claim 7, wherein the splitting device further includes a power mechanism, the power mechanism provides power to the splitting unit; the plurality of rollers are each connected to the splitting unit through a connecting rod. Power mechanism, the power mechanism controls the plurality of rollers to move in a horizontal direction or a vertical direction. move.

9. The splitting method according to claim 8, wherein each group of splitting units includes a first roller and a second roller; the power mechanism respectively controls the first roller and the second roller to apply pressure to the residual material. size as well as the starting position, ending position, rolling speed and rolling direction of rolling on the residual material.

10. The splitting method according to claim 9, wherein the power mechanism controls the first roller and the second roller to roll toward each other from the first end and the second end of the residual material respectively.

11. The splitting method according to claim 9, wherein the power mechanism controls the first roller and the second roller to move from the middle of the residual material to the first end and the second end of the residual material respectively. Back roll.

12. The splitting method according to claim 9, wherein: the power mechanism controls the first roller to roll from the first end of the residual material to the middle of the residual material; the power mechanism controls the third roller. The two rollers roll from the middle of the residual material to the second end of the residual material.

13. The splitting method according to claim 9, wherein: the power mechanism controls the first roller to roll from the middle of the residual material to the first end of the residual material; the power mechanism controls the first roller. The two rollers roll from the second end of the residual material to the middle of the residual material.