TWI715429B - Liquid crystal panel cutting device and liquid crystal panel cutting method - Google Patents

Abstract

A liquid crystal panel cutting device is used for cutting liquid crystal panels. The liquid crystal panel includes an upper plate, a lower plate and a liquid crystal interlayer. The liquid crystal panel cutting device includes a first cutter, a second cutter and a control member. The first cutter has a distance from each other. Two first cutter wheels, the second cutter has a second cutter wheel, the first cutter and the second cutter are opposite to each other, the second cutter wheel is located between the first cutter wheels, and the control member signals connect the first cutter and the second cutter Two cutters, the control component controls the first cutter to cut the upper plate downwards in the direction of gravity, and controls the second cutter to cut the lower plate upwards against the direction of gravity. The liquid crystal panel cutting device of the present invention solves the problems of material waste and production cost loss in the prior art. The invention also provides a method for cutting a liquid crystal panel.

Description

Liquid crystal panel cutting device and liquid crystal panel cutting method

The invention relates to a cutting device and a cutting method, and more particularly to a liquid crystal panel cutting device and a liquid crystal panel cutting method.

A liquid crystal panel usually includes two substrates and a liquid crystal sandwiched between them. As shown in FIG. 1, when the liquid crystal panel L is to be cut, the traditional method is to use two cutters T to cut the upper plate L1 and the lower plate L3 with some misalignment, so as to divide the liquid crystal panel L into left and right parts. Generally speaking, the right part with the cut down is a small edge part, and the liquid crystal is affected by gravity. The liquid crystal of the liquid crystal interlayer L2 of the right part will leak from the cut, so the right part will usually be discarded and cannot be used. When the two tools T in Fig. 1 are misplaced, the left part is discarded and cannot be used. Since the cut liquid crystal panel is not suitable for turning over, the traditional cutting method cannot cut the large liquid crystal panel into several small liquid crystal panels. If the traditional cutting method is used to cut the large liquid crystal panel into several A small LCD panel will cause waste of materials and loss of production costs.

Therefore, in order to solve various problems in the cutting of conventional liquid crystal panels, the present invention provides a liquid crystal panel cutting device and a liquid crystal panel cutting method.

To achieve the above and other objectives, the present invention provides a liquid crystal panel cutting device for cutting a liquid crystal panel. The liquid crystal panel includes an upper plate, a lower plate, and a liquid crystal interlayer disposed between the upper plate and the lower plate , The liquid crystal panel cutting device includes: a first cutter, with each other Two first cutter wheels separated by a distance; a second cutter having a second cutter wheel, the first cutter and the second cutter are facing each other and the second cutter wheel is located between the first cutter wheels; And a control member for signal connection with the first cutter and the second cutter, the control member controls the first cutter to cut the upper plate downward along a gravity direction, and controls the second cutter to cut upwards in the opposite direction to the gravity direction The lower board.

In an embodiment of the present invention, the second tool is configured to be slidable in a horizontal direction relative to the first tool.

In an embodiment of the present invention, the second cutter wheel of the second cutter is fixedly arranged between the two first cutter wheels of the first cutter in a horizontal direction.

In an embodiment of the present invention, the first cutter wheels are separated by 1 mm from each other.

In an embodiment of the present invention, the first tool further includes a cutter wheel spacing adjusting member connected to the first cutter wheels and the control member, and the cutter wheel spacing adjusting member is adjusted via the control member The distance between the first cutter wheels.

In one embodiment of the present invention, it further includes a liquid crystal panel sensing component, the liquid crystal panel signal is connected to the control component, and the liquid crystal panel sensing component senses whether the liquid crystal panel is placed on the first cutter and the first cutter. Between two tools.

The present invention further provides a method for cutting a liquid crystal panel. A liquid crystal panel cutting device is used to cut a liquid crystal panel. The liquid crystal panel includes an upper plate, a lower plate, and a liquid crystal interlayer disposed between the upper plate and the lower plate. The liquid crystal panel cutting device includes a first cutter and a second cutter. The first cutter and the second cutter face each other, and the first cutter has two first cutter wheels separated by a distance from each other. The second cutter has a The second cutter wheel is located between the first cutter wheels. The liquid crystal panel cutting method includes the following steps: making the first cutter cut the upper plate downward in a direction of gravity; making the second cutter Cut the lower plate upwards opposite to the direction of gravity, and the cut marks of the lower plate are located on the two sides of the upper plate. Between the cut marks; remove the part between the two cut marks of the upper plate; divide the liquid crystal panel into two liquid crystal panel parts according to the cut marks produced by the second cutter; and seal the two liquid crystal panel parts Cut the edges.

In an embodiment of the present invention, the method further includes the following steps: sensing whether the liquid crystal panel is placed between the first cutter and the second cutter.

Thereby, the liquid crystal panel cutting device and the liquid crystal panel cutting method of the present invention can prevent the liquid crystal of the cut liquid crystal panel from leaking, so that the two liquid crystal panel parts that are cut can be used for subsequent production. Cause material waste and reduce production costs.

100: LCD panel cutting device

100a: LCD panel cutting device

1: The first tool

11: The first knife wheel

12: Cutter wheel spacing adjustment component

2: Second tool

21: Second knife wheel

3: control component

4: LCD panel sensing component

d: distance

G: direction of gravity

H: horizontal direction

L: LCD panel

L1: Upper plate

L2: Liquid crystal interlayer

L3: Lower board

M: colloid

T: Tool

S101: Step

S102: Step

S103: steps

S104: Step

S105: Step

S106: Step

FIG. 1 is a schematic diagram of cutting a liquid crystal panel in the prior art.

FIG. 2 is a schematic diagram of a liquid crystal panel cutting device according to an embodiment of the invention.

FIG. 3 is a first schematic diagram of a liquid crystal panel cutting step according to an embodiment of the present invention.

FIG. 4 is a schematic diagram of the second step of cutting a liquid crystal panel according to an embodiment of the present invention.

5 is a schematic diagram of the third step of cutting a liquid crystal panel according to an embodiment of the present invention.

FIG. 6 is a fourth schematic diagram of the cutting step of a liquid crystal panel according to an embodiment of the present invention.

FIG. 7 is a flowchart of a method for cutting a liquid crystal panel according to an embodiment of the present invention.

FIG. 8 is a schematic diagram of a liquid crystal panel cutting device according to another embodiment of the invention.

Fig. 9 is a schematic diagram of a first cutter according to another embodiment of the present invention.

In order to fully understand the present invention, a detailed description of the present invention is given with the following specific embodiments and accompanying drawings. Those skilled in the art can understand the purpose, features and effects of the present invention from the content disclosed in this specification. It should be noted that the present invention can be implemented or applied through other different specific embodiments, and various details in this specification can also be based on different viewpoints and applications, and various modifications and changes can be made without departing from the spirit of the present invention. The following embodiments will further describe the related technical content of the present invention in detail, but the disclosed content is not intended to limit the scope of patent application of the present invention. The description is as follows: As shown in FIG. 1, the liquid crystal panel cutting device 100 of the embodiment of the present invention is used for cutting a liquid crystal panel L. The liquid crystal panel L includes an upper plate L1, a lower plate L3, and a liquid crystal interlayer L2 disposed between the upper plate L1 and the lower plate L3. In this embodiment, the upper plate L1 and the lower plate L3 are respectively a Thin-Film Transistor (TFT) array substrate and a color filter (CF). However, the present invention is not limited to this. The upper plate L1 and the lower plate L3 can be any plate-shaped members that can sandwich and house the liquid crystal interlayer L2.

The liquid crystal panel cutting device 100 includes: a first cutter 1, a second cutter 2 and a control member 3.

The first cutter 1 has two first cutter wheels 11 separated by a distance from each other.

The second cutter 2 has a second cutter wheel 21, the first cutter 1 and the second cutter 2 are arranged to face each other and the second cutter wheel 21 is located between the two first cutter wheels 11. In other words, the blade edges of the two first cutter wheel 11 and the second cutter wheel 21 face each other.

The control member 3 signals the first cutter 1 and the second cutter 2. The control member 3 controls the first cutter 1 to cut the upper plate L1 downward along a gravity direction G, and controls the second cutter 2 to cut upward against the gravity direction G Lower board L3.

Next, please refer to FIG. 3 to FIG. 7 to illustrate the liquid crystal panel cutting method for cutting the liquid crystal panel L using the liquid crystal panel cutting device 100 of the present invention.

As shown in FIG. 3, first, in step S102, the control member 3 controls the two first cutter wheels 11 of the first cutter 1 to cut the upper plate L1 downward along the gravity direction G, while leaving two parallel cuts on the upper plate L1. Marks (shown by dotted lines), the parallel direction is perpendicular to the paper surface.

In step S103, the control member 3 controls the second cutter wheel 21 of the second cutter 2 to cut the lower plate L3 upward in the opposite direction of the gravity direction G, and the cut of the lower plate L3 is located between the two cuts of the upper plate L1.

Then, as shown in step S104 and FIG. 4, the part between the two cuts of the upper plate L1 is removed.

As shown in step S105 and FIG. 5, the liquid crystal panel L is divided into two liquid crystal panel components according to the cut marks produced by the second cutter 2. Since the liquid crystal interlayer L2 is supported by the lower plate L3 below, the liquid crystal does not leak.

Finally, as shown in step S106 and FIG. 6, the cut edges of the two liquid crystal panel components are sealed with glue M. The colloid M may be an ultraviolet curable glue or any conventionally used colloid, and the present invention is not limited thereto.

Through the liquid crystal panel cutting device 100 and the liquid crystal panel cutting method of the present invention, the liquid crystal of the cut liquid crystal panel L can be prevented from leaking, and the two liquid crystal panel parts that are cut can be used for subsequent production. Cause material waste and reduce production costs.

Further, in one embodiment, as shown in FIG. 2, the second tool 2 has a higher degree of freedom, and is configured to be able to slide along a horizontal direction H relative to the first tool 1. The horizontal direction H is a direction perpendicular to the direction of gravity G. During the liquid crystal panel cutting operation, the control member 3 adjusts the position of the second cutter wheel 21 of the second cutter 2 so that the second cutter wheel 21 is located between the two first cutter wheels 11 in the horizontal direction H. position. In addition, the second cutter wheel 21 of the second cutter 2 can be adjusted in the horizontal direction H by being driven by a linear motor, hydraulic cylinder or pneumatic cylinder. Furthermore, the two first cutter wheels 11 of the first cutter 1 can also be adjusted in the horizontal direction H by being driven by a linear motor, hydraulic cylinder or pneumatic cylinder.

Further, in an opposite embodiment, as shown in FIG. 8, the second cutter wheel 21 of the second cutter 2 of the liquid crystal panel cutting device 100a is fixedly arranged on the two first cutters of the first cutter 1 in the horizontal direction H. Between round 11. In other words, the second cutter wheel 21 can only move along the gravity direction G or opposite to the gravity direction G, and its positional relationship with the two first cutter wheels 11 in the horizontal direction H is fixed, and the cutting operation is performed. At this time, there is no need to rely on the control member 3 to readjust the position of the second cutter wheel 21 of the second cutter 2.

Further, in one embodiment, the two first cutter wheels 11 of the first cutter 1 are separated by 1 mm from each other to reduce material waste, but the invention is not limited to this.

Further, in one embodiment, as shown in FIG. 9, the first tool 1 further includes a cutter wheel spacing adjusting member 12, which is connected to the two first cutter wheels 11 of the first tool 1 and the control member 3. . The cutter wheel spacing adjusting member 12 adjusts the distance d between the two first cutter wheels 11 of the first tool 1 according to the instruction of the control member 3. The cutter wheel spacing adjusting member 12 is, for example, a combination of a stepping motor and a gear or a screw, and the distance d between the two first cutter wheels 11 is adjusted accordingly by using the motor to rotate forward or reverse. However, the present invention is not limited to this. The present invention can also use other mechanical means such as linear motors, hydraulic cylinders or pneumatic cylinders to adjust the distance d between the two first cutter wheels 11.

Further, in one embodiment, as shown in FIG. 2, the liquid crystal panel cutting device 100 further includes a liquid crystal panel sensing member 4, and the liquid crystal panel sensing member 4 is signally connected to the control member 3. As shown in step S101 of FIG. 7, the liquid crystal panel sensing component 4 senses whether a liquid crystal panel L is placed between the first cutter 1 and the second cutter 2. If so, the control member 3 executes the subsequent liquid crystal panel cutting method. In this embodiment, the liquid crystal panel sensing member 4 is a contact sensing member, and when touched, it sends a signal to Control component 3. However, the present invention is not limited to this. The liquid crystal panel sensing member 4 may also be a sensing member in other forms or using other scientific principles, such as an optical sensing member, an electrical sensing member, or other types of mechanical sensing members.

The present invention has been disclosed in the above embodiments. However, those skilled in the art should understand that the embodiments are only used to describe the present invention and should not be interpreted as limiting the scope of the present invention. It should be noted that all changes and substitutions equivalent to this embodiment should be included in the scope of the present invention. Therefore, the protection scope of the present invention should be defined by the scope of the patent application.

100: LCD panel cutting device

1: The first tool

11: The first knife wheel

2: Second tool

21: Second knife wheel

3: control component

4: LCD panel sensing component

G: direction of gravity

H: horizontal direction

L1: Upper plate

L2: Liquid crystal interlayer

L3: Lower board

Claims (6)

A liquid crystal panel cutting device is used for cutting a liquid crystal panel. The liquid crystal panel includes an upper plate, a lower plate and a liquid crystal interlayer arranged between the upper plate and the lower plate. The liquid crystal panel cutting device includes: a first A tool has two first cutter wheels separated by a distance; a second cutter has a second cutter wheel, the first cutter and the second cutter are facing each other and the second cutter wheel is fixed in a horizontal direction Is arranged between the first cutter wheels; and a control member that signals the first cutter and the second cutter, the control member controls the first cutter to cut the upper plate downward in a direction of gravity, and controls the The second cutter cuts the lower plate upwards opposite to the gravity direction. The liquid crystal panel cutting device according to claim 1, wherein the first cutter wheels are separated from each other by 1 mm. The liquid crystal panel cutting device according to claim 1, wherein the first cutter further includes a cutter wheel spacing adjusting member connected to the first cutter wheels and the control member, and the cutter wheel spacing adjusting member passes through The control member adjusts the distance between the first cutter wheels. The liquid crystal panel cutting device according to claim 1, further comprising a liquid crystal panel sensing member, the liquid crystal panel sensing member is signally connected to the control member, and the liquid crystal panel sensing member senses whether the liquid crystal panel is placed on the Between the first tool and the second tool. A method for cutting a liquid crystal panel. A liquid crystal panel cutting device is used to cut a liquid crystal panel. The liquid crystal panel includes an upper plate, a lower plate, and a liquid crystal interlayer arranged between the upper plate and the lower plate. The liquid crystal panel cutting device It includes a first cutter and a second cutter, the first cutter and the second cutter are facing each other, and the first cutter has two first cutter wheels separated by a distance from each other, and the second cutter has a second cutter wheel , The second cutter wheel is located between the first cutter wheels, and the liquid crystal panel cutting method includes the following steps: making the first cutter cut the upper plate downward in a direction of gravity; making the second cutter opposite to the The lower plate is cut upward in the direction of gravity, and the cut of the lower plate is located between the two cuts of the upper plate; the part between the two cuts of the upper plate is removed; the cut made by the second cutter The liquid crystal panel is divided into two liquid crystal panel components; and the cutting edge of the two liquid crystal panel components is sealed. The liquid crystal panel cutting method according to claim 5 further includes the following steps: sensing whether the liquid crystal panel is placed between the first cutter and the second cutter.

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