KR101841183B1 - Apparatus for machining light-guide plate using lazer - Google Patents

Abstract

The present invention relates to a laser processing device for a lighting and display panel with an added cleaning function. More specifically, the laser processing device for a lighting and display panel with the added cleaning function produces a high quality light guide plate by applying a cleaning device to a light guide plate processing device and cleaning the light guide plate when the light guide plate is drawn into the processing device and produces an excellent light guide plate by inspecting the appearance of the light guide plate when the light guide plate is taken out and checking whether an error factor has occurred. The laser processing device for a lighting and display panel with the added cleaning function comprises: a stage (120) on which a light guide plate is loaded on an upper surface thereof; a laser head (130) which receives a laser beam provided from a laser source and forms a predetermined pattern on the surface of the light guide plate loaded on the stage; a head driving unit (160) which has a motor for relatively reciprocating the laser head on the stage; a cleaning device (112) which is installed at the end of the stage, cleans the light guide plate, and guides a bar pattern to be formed in a state where dust is removed from the light guide plate; and a control unit (200) which detects an operation of the stage and outputs an alarm signal through an automatic alarm signal output unit (1000) when the cleaning device (112) is not operated during the operation of the stage.

Description

[0001] Apparatus for machining light-guide plate using laser [0002]

The present invention relates to a laser processing apparatus for a lighting and display panel to which a cleaning function is added. In particular, a cleaning apparatus is applied to a light guide plate processing apparatus to clean the light guide plate when the light guide plate is drawn into the processing apparatus, And checking the appearance of the light guide plate at the time of withdrawal to check whether or not an error factor has occurred, so that a high quality light guide plate can be manufactured. In addition, the pollution degree around the laser processing apparatus is checked, And to reduce the defect rate by guiding the light guide plate to take appropriate measures.

A light guide plate is a part that performs brightness and uniform lighting functions in an edge type flat panel illumination or a back light unit.

That is, the light guide plate refers to acryl assembled in a backlight unit that guides light to a liquid crystal (LCD panel) in a liquid crystal display (LCD). Light emitted from a cold cathode fluorescent lamp (CCFL) It is a type of plastic molded lens that serves to uniformly transfer the light onto the entire surface of the LCD panel.

As described above, the light guide plate is required to uniformly transmit the light emitted from the light source to the entire surface of the LCD panel, so that a certain pattern is formed on the surface of the light guide plate. The shape of the pattern may be a prism pattern, a checkerboard pattern, a polygonal pattern, a star pattern, a dot pattern, a bar pattern, or the like.

Among these patterns, a prism pattern, a checkerboard pattern, a polygonal pattern, a star pattern, and the like are not enough to be applied to a large-sized television because of difficulty in adjusting the brightness. Therefore, a dot pattern or a bar pattern is usually applied to a light guide plate used for a large television, for example, a large television set of about 50 inches or more.

On the other hand, a pressing method using a metal mold can be considered in forming a dot pattern or a bar pattern on the surface of the light guide plate. However, the method using the metal mold has difficulties in producing a metal mold, It is not easy to apply because it can not be formed constantly and precisely. Therefore, research and development of a light guide plate manufacturing apparatus using a laser is progressing in order to improve the precision of processing in the near future.

Hereinafter, a light guide plate manufacturing apparatus for forming a bar pattern on the surface of a light guide plate using a laser will be described.

In a conventional light guide plate manufacturing apparatus, a light guide plate is fixed on one stationary fixed stage, and then a light guide plate is fixed. Then, a laser beam is moved along the X axis and the Y axis with respect to the fixed light guide plate to form a bar pattern on the light guide plate . At this time, the movement (reciprocating drive) of the laser head is performed by a linear motor (linear).

For reference, the X axis may be the long side direction of the light guide plate, and the Y axis may be the short side direction of the light guide plate.

1, a laser generating apparatus 100 is arranged such that a laser beam is emitted to the outside, and a laser beam is emitted from an X-axis As shown in Fig.

The laser head 200 has a focus lens (not shown) therein and irradiates the laser beam emitted from the laser generator 100 to the back surface of the light guide plate P. [

The bracket 300 is configured to fixly support the laser head 200.

In this conventional light guide plate processing apparatus, since the laser head 200 is supported by the bracket 300, the optical path of the laser beam in the Z-axis direction, that is, the vertical direction is always kept constant.

However, when fine dust adheres to the light guide plate during the process of processing the light guide plate, there is a problem that it can not be easily processed in the process of processing.

That is, since the material of the light guide plate is a synthetic resin, there is a lot of dust sticking due to static electricity, and when the dust is not removed, the dust part is not processed properly during the precise pattern processing, The product was defective and operated as a factor to lower the yield.

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems and it is an object of the present invention to provide a light guide plate which is cleaned by using a cleaning device having an ion blower and a cleaning device incorporated therein, And it is an object of the present invention to provide a light guide plate of high quality and to output an alarm signal when the cleaning device does not operate at a point where the light guide plate pattern forming operation is performed, have.

In addition, when the contamination level around the processing apparatus is checked, if it exceeds the standard, it is informed to the outside so as to induce quick action, thereby reducing defects occurring in the panel processing process.

As means for achieving the above object,

The present invention includes a stage 120 on which a light guide plate is loaded on an upper surface thereof; A laser head 130 which receives a laser beam from a laser source and forms a predetermined pattern on the surface of the light guide plate loaded on the stage; A head driving unit 160 having a motor for reciprocally driving the laser head relative to the stage; A cleaning device 112 installed at an end of the stage for cleaning the light guide plate to guide the light guide plate to form a bar pattern with dust removed; Dust measuring means 2000 installed at one end of the stage for measuring dust; And a communication signal automatic output unit 1000 for outputting a notification signal to the outside when dust is detected by the dust measuring unit.

The dust measuring means may include an infrared transmitting means (A) for emitting infrared rays, a light receiving means for receiving light emitted from the infrared transmitting means and positioned to face the infrared transmitting means, (C) for controlling the input voltage of the infrared transmitting means (A) to increase when the output voltage of the infrared receiving means (B) is smaller than a set value, ); The infrared transmitting means A includes a plurality of moving electromagnets 2a, 2b and 2c which are wound around the actuator 3 so as to be spaced apart from each other by a predetermined distance and a plurality of moving electromagnets 2b and 2c which are arranged adjacent to the moving electromagnets 2a, An infrared transmitter converting means (2) comprising a plurality of stationary electromagnets (2d, 2e, 2f) fixedly installed; 2b and 2c and the fixing electromagnets 2d and 2e and 2f by flowing a current through the flow electromagnets 2a and 2b and 2c and the fixing electromagnets 2d and 2e and 2f, A transmission control unit 1 for generating a repulsive force and an attractive force between the first and second infrared transmitters 2e and 2f to drive the actuator 3, an infrared transmitter flow unit 4 installed at the lower end of the actuator for flowing the infrared transmitter back and forth, And a plurality of concave lens groups (5) for varying an output of an infrared transmitter installed in an infrared transmitter flow means, wherein the infrared transmitter flow means (4) An infrared ray transmission element 4a for outputting an infrared ray to the outside in proximity to the concave lens group 5 formed therein, a movement bar 4b for flowing the infrared ray transmission element 4a, Credit device It is characterized by comprising a solenoid (4c) to.

In addition, at the lower end of the actuator, first to third fitting holes 6a for adjusting operational sensitivity, and first to third weight adjusting pins 6b inserted in the fitting holes, And further includes a speed adjusting means (6).

The concave lens group 5 is designed to vary the degree of output of infrared light according to the depression angle of the center portion. When a lens having different degrees of depression is selected by the movement operation of the infrared transmitter conversion means, A third concave lens 5c which is provided at the very center of the working rod and has a depression angle of 25 degrees; A second concave lens 5b provided on the third concave lens 5c and having a concave angle of 15 degrees; A first concave lens 5a provided on the second concave lens 152 and having a depression angle of 5 degrees; A fourth concave lens 5d which is used when the infrared ray is to be output with a higher light output and is provided below the third concave lens 5c and has a concave angle of 35 degrees; And a fifth concave lens 5e, which is used when the infrared ray is to be output with a higher intensity, and which is provided below the fourth concave lens 5d and has a concave angle of 45 degrees.

In addition, the communication signal automatic output unit 1000 includes a power supply unit 1110 for applying power by its own power supply; A first switching transistor Q1 for switching a circuit according to a switching signal input to the base; A second switching transistor Q2 which operates in accordance with the operation of the first switching transistor and switches the power source output from the power source unit; A third switching transistor Q3 for switching a circuit according to a switching signal input to the base; A fourth switching transistor Q4 which is provided on the other side of the output terminal of the power supply unit and switches the power supply unit output from the power supply unit; A relay switch RY3 coupled to the output terminal of the fourth switching transistor and generating a magnetic force when the fourth switching transistor is switched; A first circuit connection switch (sw1) for performing a function of energizing the circuit while the iron wire is pulled by the relay switch; A second communication signal output power switch sw2 for inducing a communication signal to be output through the communication signal output unit 1150 by supplying power to the communication signal output control unit 1140 while the iron wire is pulled by the relay switch, Wow; The third switching transistor and the fourth switching transistor are switched to induce switching of the relay switch so that the first circuit connecting switch and the second communication signal output power source switch are switched, and then the third switching transistor and the fourth switching transistor A first circuit connection switch configured to turn off the transistor and to switch the first switching transistor and the second switching transistor so that the relay switch is turned off and simultaneously the first and second switching transistors are turned on, A communication control unit 1120 for maintaining the switching state of the switch and continuing the communication state; A circuit breaker 1131 for contacting the first circuit connection switch sw1 and relaying power from the second switching transistor to continue the flow of power; And a communication signal output control unit power supply unit for connecting the power supply to the communication signal output control unit 1140 to induce the communication device to operate when the circuit operation operating wire 1131 is turned on, A steel wire piece 1132; A first elastic holding means 1133 provided at the lower end of the circuit operation steel plate 1131 and guiding the first circuit connection switch sw1 and the circuit operation wire 1131 to be kept in the off state at all times when the relay switch is not operated )and; The first circuit connection switch (sw1) is installed above the first circuit connection switch (sw1). The first circuit connection switch (sw1) is spaced apart from the first elastic holding means by a predetermined distance. Even if the first circuit connection switch sw1 is switched and the operation of the relay switch is stopped while the first circuit connection switch sw1 is engaged with the first elastic holding means 1133 while the first circuit breaker 1131 is pulled and the first resilient holding means is overlapped, The operation state of the operating wire 1131 continues to maintain the power supply state through the first switching transistor and the second switching transistor. The second elastic holding means 1134 operates to automatically output the communication signal when the wire piece 1131 for circuit operation is operated by the operation of the relay switch. ; The second elastic holding means 1134 and the first elastic holding means 1133 are guided to be engaged with each other while maintaining a constant gap without being directly coupled with each other when the first and second elastic holding means 1134 and 1133 are engaged, Spacing means (1133a) for guiding the means (1134) so that they can be separated from each other naturally during disassembly; And a control unit for controlling the operation of the communication signal output unit by turning off the wire for the circuit operation and the wire for connecting the communication signal output control unit when the user operates the communication wire for interrupting the operation of the communication signal, And a manual operation switch 1135 for stopping the communication signal so that the communication signal is no longer outputted.

As described above, according to the present invention, when a light guide plate is pulled into or taken out of a processing apparatus, a light guide plate is manufactured in a clean state by using a cleaning device including an ion blower and a cleaning device, In addition, when the cleaning device is not operated at the point where the light guide plate pattern forming operation is performed, an alarm signal is outputted to induce the operator to quickly correct the error factor.

In addition, if the pollution level around the processing apparatus is checked and the standard is exceeded, it is informed to the outside, and quick action is induced to reduce defects occurring in the panel processing process.

1 is a block diagram of a conventional light pipe manufacturing apparatus.
2 is a schematic plan view of a light guide plate manufactured by a light guide plate manufacturing apparatus according to an embodiment of the present invention.
3 is a block diagram of a light guide plate manufacturing apparatus applied to the present invention.
FIGS. 4 and 5 are perspective views illustrating a process of fabricating a light guide plate by the light guide plate manufacturing apparatus of FIG. 3, respectively; FIG.
Fig. 6 is a block diagram of a dust measuring means and a communication signal automatic output section of the present invention; Fig.
7 is a conceptual diagram of an infrared transmitting means and an infrared receiving means constituting the dust measuring means of the present invention.
8 is a conceptual diagram for measuring dust using infrared ray transmitting means and infrared ray receiving means of the present invention.
9 is a conceptual diagram of the operation for the flow of the infrared ray transmitting means of the present invention.
10 is a conceptual view showing the angle measurement of the concave lens of the present invention.
11 is a configuration view of a first concave lens applied to the present invention.
FIG. 12 is a second negative lens configuration applied to the present invention; FIG.
13 is a third negative lens configuration applied to the present invention.
FIG. 14 is a fourth negative lens configuration applied to the present invention. FIG.
15 is a configuration view of a fifth concave lens applied to the present invention.
16 is a graph showing an optical intensity graph according to the concave lens center depression angle of the present invention.
17 is a circuit diagram of a communication signal automatic output section of the present invention.
18 is an enlarged view of the main part of Fig.
19 is a diagram illustrating an example of the operation of the communication signal automatic output section of the present invention.

The operation principle of the preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings and description. It should be understood, however, that the drawings and the following detailed description are exemplary and explanatory and are intended to provide further explanation of the invention, and are not to be construed as limiting the present invention.

In the following description of the present invention, a detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear. The terms used below are defined in consideration of the functions of the present invention, which may vary depending on the user, intention or custom of the operator. Therefore, the definition should be based on the contents throughout the present invention.

It is to be understood that both the foregoing general description and the following detailed description of the present invention are exemplary and explanatory and are intended to provide further explanation of the invention as claimed. The configuration is omitted as much as possible, and a functional configuration that should be additionally provided for the present invention is mainly described.

Those skilled in the art will readily understand the functions of the components that have been used in the prior art among the functional configurations that are not shown in the following description, The relationship between the elements and the components added for the present invention will also be clearly understood.

In order to efficiently explain the essential technical features of the present invention, the following embodiments properly modify the terms so that those skilled in the art can clearly understand the present invention, It is by no means limited.

As a result, the technical idea of the present invention is determined by the claims, and the following embodiments are merely illustrative of the technical idea of the present invention in order to efficiently explain the technical idea of the present invention to a person having ordinary skill in the art to which the present invention belongs. .

2 is a schematic plan view of a light guide plate manufactured by a light guide plate manufacturing apparatus according to an embodiment of the present invention.

3 is a block diagram of a light guide plate manufacturing apparatus applied to the present invention.

FIGS. 4 and 5 are perspective views illustrating a process of fabricating a light guide plate by the light guide plate manufacturing apparatus of FIG. 3, respectively; FIG.

Fig. 6 is a block diagram of a dust measuring means and a communication signal automatic output section of the present invention; Fig.

7 is a conceptual diagram of an infrared transmitting means and an infrared receiving means constituting the dust measuring means of the present invention.

8 is a conceptual diagram for measuring dust using infrared ray transmitting means and infrared ray receiving means of the present invention.

9 is a conceptual diagram of the operation for the flow of the infrared ray transmitting means of the present invention.

10 is a conceptual view showing the angle measurement of the concave lens of the present invention.

11 is a configuration view of a first concave lens applied to the present invention.

FIG. 12 is a second negative lens configuration applied to the present invention; FIG.

13 is a third negative lens configuration applied to the present invention.

FIG. 14 is a fourth negative lens configuration applied to the present invention. FIG.

15 is a configuration view of a fifth concave lens applied to the present invention.

16 is a graph showing an optical intensity graph according to the concave lens center depression angle of the present invention.

17 is a circuit diagram of a communication signal automatic output section of the present invention.

18 is an enlarged view of the main part of Fig.

19 is a diagram illustrating an operation example of the communication signal automatic output section of the present invention,

1 is a schematic plan view of a light guide plate manufactured by a light guide plate manufacturing apparatus according to a first embodiment of the present invention.

As shown in this figure, the light guide plate 1, which is made of a substantially rectangular plate, is a component that is assembled in a backlight unit for guiding light to a liquid crystal (LCD panel) in a liquid crystal display to be.

The light guide plate 1 may be made of a pressure-sensitive acrylic or a cast acrylic. A plurality of LED coupling portions 3 are formed on the circumference of the light guide plate 1, to which a plurality of LEDs (not shown) are coupled. A large number of patterns 2 are formed on the surface of the light guide plate 1 as means for uniformly diffusing light from the LEDs in the entire area of the light guide plate 1. [

In the case of this embodiment, the pattern 2 formed on the light guide plate 1 is formed in a bar pattern by a laser, in particular, a carbon dioxide gas laser. Since the bar pattern is advantageous in luminance control, it is sufficient to be applied to a large television requiring a sharp and clear picture, for example, a large television of about 50 inches or more.

However, since the scope of the present invention is not limited thereto, the pattern 2 may be a dot pattern. In addition, the type of the laser that substantially processes the pattern 2 may also be applied to a laser having properties other than carbon dioxide gas laser.

As shown in these drawings, the light guide plate manufacturing apparatus of this embodiment comprises a device body 110, a stage 120 on which two first and second light guide plates 1a and 1b are loaded, A laser head 130 which receives a laser provided from a laser light source (not shown) and forms a bar pattern 2 on the surfaces of the first and second light guide plates 1a and 1b loaded on the stage 120, And a head driving unit 160 having a belt 164 for movably supporting the laser head 130 relative to the stage 120 and driving the laser head 130 to relatively reciprocate.

The apparatus main body 110 is a part for supporting the movable stage 120 and other components except for the base plate 140.

The apparatus main body 110 is disposed so as to be erected in an intersecting direction with respect to the base plate 140. Most of the apparatus main body 110 is made of a metal material like the base plate 140, but may be partially made of stone.

The apparatus main body 110 is further provided with a cleaning device 112 for removing dust generated in the first and second light guide plates 1a and 1b when the bar pattern 2 is processed.

The cleaning device 112 incorporates an ion blower and a cleaning device, and guides the light guide plate 1 to be cleanly cleaned to easily form a bar pattern.

The stage 120 is a place where the first and second light guide plates 1a and 1b are loaded. In this embodiment, the stage 120 is manufactured as a dual moving stage 120 which can be manufactured not only in a large area where two first and second light guide plates 1a and 1b are loaded but also in the Y axis direction do. Hereinafter, the stage 120 will be referred to as a moving stage 120.

However, since the scope of the present invention is not limited thereto, three or more light guide plates 1 may be loaded on the upper surface of the movable stage 120. However, when the pattern 2 is formed by the laser after the three light guide plates 1 are loaded on the upper surface of the movable stage 120, it is not easy to control the amount of laser light uniformly. Therefore, It may be difficult to form a uniform pattern (2) on both of the surfaces (1).

Therefore, in the case of the light guide plate 1 applied to a large television set of about 50 inches, it may be advantageous to load the two first and second light guide plates 1a and 1b on the upper surface of the movable stage 120 as in this embodiment . However, the scope of the present invention is not limited thereto. It has been experimentally demonstrated that productivity is increased by 30% or more when the pattern 2 is formed simultaneously on the two first and second light guide plates 1a and 1b.

Two first and second light guide plate loading portions 121a and 121b on which two first and second light guide plates 1a and 1b are respectively loaded are provided on the upper surface of the movable stage 120. [ The first and second light guide plate loading portions 121a and 121b may be provided in the form of two areas on the upper surface of the moving stage 120 processed in one disc shape as in the present embodiment, May be provided one by one in two separate stages (not shown) that are separately separated.

A plurality of vacuum suction holes 122 are formed on the surface of the moving stage 120 so that the first and second light guide plates 1a and 1b loaded on the first and second light guide plate loading portions 121a and 121b are vacuum- .

A plurality of weight reduction grooves 123 are formed between the vacuum absorption holes 122 so as to be recessed from the surface of the moving stage 120.

The weight reducing groove 123 reduces the total weight of the moving stage 120 made of a metal material, thereby reducing the consumption of electric power required for moving the moving stage 120, and reducing the manufacturing cost of the moving stage 120 .

For example, as in the present embodiment, in order for two light guide plates 1a and 1b of approximately 50 inches in size to be loaded on the moving stage 120, the size of the moving stage 120 must be large, However, when the weight reduction groove 123 is formed on the surface of the moving stage 120 as in the present embodiment, it is sufficient to solve various problems due to the high weight.

The top surface structure of the moving stage 120 will be briefly described. An alignment portion 124 is provided on the upper surface of the movable stage 120 to align the loading positions of the first and second light guide plates 1a and 1b when the first and second light guide plates 1a and 1b are loaded.

The alignment section 124 includes a plurality of reference alignment ribs 124a provided on the front surface of the moving stage 120 along the Y axis direction and a plurality of reference alignment ribs 124b formed on the side surface of the moving stage 120, An aligning rib 124b for alignment, and a movable pressing pad 124c.

The reference alignment rib 124a forms a reference of the loading position for the first and second light guide plates 1a and 1b while the front side walls of the first and second light guide plates 1a and 1b are closely attached along the Y axis direction .

The side alignment ribs 124b align the first and second light guide plates 1a and 1b together with the reference alignment rib 124a while the left and right side walls of the first and second light guide plates 1a and 1b are in close contact with each other. . As described above, the side-aligning ribs 124b are arranged in the direction intersecting the reference-aligning ribs 124a, and are arranged in a region between the first and second light-guide plate loading portions 121a and 121b .

The side alignment alignment ribs 124b serve to align the first and second light guide plates 1a and 1b and form a dummy space between the first and second light guide plates 1a and 1b And also serves as a tolerance management function for the first and second light guide plates 1a and 1b.

In the meantime, according to the present invention, a dust measuring means is installed at one end of a stage 110 to detect dust through the dust measuring means 2000, and when dust above a reference level is detected, the dust is outputted through an alarm signal, Induce that dust is contaminated above the standard. In addition, by properly responding to the administrator, it is possible to reduce the panel defect rate due to the peripheral pollution of the apparatus.

The data measured by the dust measuring unit 2000 is transmitted to the dust measuring control unit 3000 and the dust measuring control unit 3000 displays the data measured by the dust measuring unit on the display 4000.

The dust measuring means 2000 of the present invention includes an infrared transmitting means (A) for emitting infrared rays, a receiving means for receiving the light emitted from the infrared transmitting means and positioned to face the infrared transmitting means, (D) for controlling the input voltage of the infrared ray transmitting means (A) to increase when the output voltage of the infrared ray receiving means (B) is smaller than a predetermined value, an infrared ray receiving means (C).

The infrared transmitting unit A receives the infrared transmitting control signal from the dust measuring control unit C, determines the infrared transmitting amount, and outputs the changed infrared transmitting amount.

That is, when the result of the infrared ray receiving means B is transmitted to the dust measurement control section C, the dust measurement control section C predicts the dust generation amount based on the data of the infrared ray receiving means B, And outputs a control signal to the infrared ray transmitting means (A) to adjust the infrared ray transmission amount to induce the output.

That is, the light amount data outputted from the infrared ray receiving means is read by the dust measurement control unit, and the light amount of the infrared light emitting means is automatically controlled based on the read light amount data, so that the sensitivity adjustment is automatically maintained constant. So that the measurement can be performed while maintaining the sensitivity state.

In other words, the dust measurement control section C determines that the degree of contamination is high when the amount of received light of the infrared ray receiving means B is low, and outputs a control signal to increase the light amount of the infrared ray transmitting means A If the amount of light received by the infrared ray receiving means C is too high, a contamination-free state or a precise measurement becomes difficult. Therefore, a control signal is outputted so as to lower the light amount of the infrared ray transmitting means A That is, it is necessary to keep the amount of infrared transmission light in an appropriate state. The infrared ray amount measured through the infrared ray receiving means is accurate and the dust amount can be more precisely predicted. Therefore, the dust amount data measured by the dust measurement control unit of the present invention can output the dust measurement result with high reliability.

In the present invention, when the dust measurement control unit C outputs a control signal in order to facilitate the change of the light amount of the infrared ray transmission unit, the transmission control unit 1 recognizes the control signal and drives the infrared ray transmitter conversion unit to perform the most appropriate infrared ray transmission .

The infrared transmitter converting means 2 includes a plurality of moving electromagnets 2a, 2b and 2c which are wound around the actuator 3 and are mounted with a predetermined distance therebetween and fixed to a position adjacent to the moving electromagnets 2a, 2b and 2c And a plurality of stationary electromagnets 2d, 2e, 2f to be installed,

When a signal from the transmission control section 1 is applied, current flows through the floating electromagnets 2a, 2b, 2c and the fixed electromagnets 2d, 2e, 2f to form magnetic poles , 2c and the fixed electromagnets 2d, 2e, 2f to generate the repulsive force and attracting force to drive the actuator 3.

The actuator 3 is provided with a plurality of concave lens groups for limiting the infrared ray output by the flow of the infrared transmitter converting means 2.

The infrared transmitter flow means 4 for performing this operation includes an infrared ray transmission element 4a for outputting infrared rays to the outside in proximity to the concave lens group 5 formed on the outer peripheral edge of one side of the actuator 3 in the longitudinal direction, A moving bar 4b for moving the infrared ray transmitting element 4a and a solenoid 4c for moving the infrared ray transmitting element to the left and right by moving the moving bar.

In the configuration described above, when the actuator 3 is moved, the infrared ray transmitting element 4a flows to the left and right due to application of power to the solenoid 4c.

A plurality of the infrared transmitting lens groups 5 are arranged on the working rods and are designed so that the degree of output of the infrared light is varied according to the depression angle of the center portion. The infrared ray of different intensity can be outputted.

The second concave lens 5c disposed above the third concave lens 5c when the infrared light is to be output with a small amount of light, and the second concave lens 5c provided above the third concave lens 5c, And outputs light through the first concave lens 5a provided above the second concave lens 5b when the infrared ray is to be output by further reducing the amount of infrared light. When the infrared ray is to be outputted with higher light intensity, light is output through the fourth concave lens 5d provided below the third concave lens 5c. When the infrared ray is to be outputted with higher intensity, And outputs the light through a fifth concave lens 5e provided below the second concave lens 5d.

The concave lens group is designed to have a different degree of output of infrared light depending on the depression angle of the central portion, and a lens having different degrees of depression can be selected by the movement of the infrared transmitter conversion means to output infrared light of different intensity The third concave lens 5c is basically provided at the center of the working rod and forms a depression angle of 25 degrees.

The second concave lens 5b is used for outputting a slightly reduced amount of infrared light and is provided above the third concave lens 5c to form a depression angle of 15 degrees.

The first concave lens 5a is used when it is required to further reduce the amount of infrared light and is disposed above the second concave lens 5b and forms a depression angle of 5 degrees.

The fourth concave lens 5d is used when it is necessary to output the infrared ray with a higher light output, and is provided at the lower side of the third concave lens 5c and forms a depression angle of 35 degrees.

The fifth concave lens 5e is used when it is necessary to increase the output of the infrared light to a greater extent and is provided below the fourth concave lens 5d and forms a concave angle of 45 degrees.

When the infrared light needs to be increased, the actuator 3 is raised and the actuator 3 is lowered when the infrared light needs to be reduced.

The first fixing electromagnet 2d, the first moving electromagnet 2a, the second fixing electromagnet 2e, the second floating electromagnet 2b, and the second fixing electromagnet 2b are controlled by the transmission control unit 1, (2f) - the third floating electromagnet (2c) is given a repulsive force signal and the second fixing electromagnet (2e) - the first floating electromagnet (2a), the third fixing exclusive magnet When the attracting force is applied to the electromagnet 2b, the actuator 3 is lowered to place the first mounting electromagnet 2a in the position of the second fixing electromagnet 2e and the second mounting electromagnet 2a in the position of the third fixing electromagnet 2f. The mounting electromagnet 2b is positioned. Accordingly, when the operating rod is lowered by one step, the infrared ray transmission element 4a comes close to the second concave lens 5b and outputs infrared light through the second concave lens 5b.

The first fixing electromagnet 2d-the first moving electromagnet 2a, the second fixing electromagnet 2e-the second floating electromagnet 2b, and the second fixing electromagnet 2b are controlled by the transmission control unit 1 in the control for the one- The third fixed electromagnet 2f and the third floating electromagnet 2c are given a repulsive force signal and the first fixed electromagnet 2d-the second floating electromagnet 2b and the second fixed exclusive magnet 2d- When the actuating signal is applied to the third moving electromagnet 2c, the actuator 3 is raised so that the second mounting electromagnet 2b is positioned at the position of the first fixing electromagnet 2d and the second mounting electromagnet 2b is positioned at the position of the second fixing electromagnet 2e The third mounting electromagnet 2c is located. Accordingly, when the operating rod is raised by one step, the infrared transmitting element comes close to the fourth concave lens 5d and outputs infrared light through the fourth concave lens 5d.

The first moving electromagnet 2a is positioned at the same position as the third fixing electromagnet 2f when the operation rod is lowered for two steps and accordingly the infrared transmitting element 4a is positioned at the same position as the first concave lens 5a, And the third moving electromagnet 2c is positioned at the same position as the first fixing electromagnet 2d in the control for raising the actuator 3 in two steps, The light is output through the fifth concave lens 5e.

The present invention is further characterized in that a motion speed adjusting means 6 is further provided and is formed at the lower end of the actuator 3 so as to form a plurality of fitting holes 6a in the actuator 3, The movement speed of the actuator 3 can be adjusted by inserting a weight adjusting pin 6b for adjusting the weight of the actuator in the hole.

That is, the weight adjusting pin 6b is inserted into the fitting hole 6a. If one weight adjusting pin is provided, the working rod is light and thus it is possible to flow rapidly. When the three weight adjusting pins are installed, Slow flow is possible.

The movement speed control means controls whether the movement of the actuator 3 is fast or slow. If the actuator 3 moves too fast, the sensitivity increases. If the actuator 3 moves too slowly, So that the user can selectively control the movement of the actuator 3.

That is, if the user wants to increase the sensitivity, only one weight control pin 6b is inserted and coupled, and if the sensitivity is to be lowered, up to three weight control pins 6b are inserted and coupled.

It is needless to say that the number of the fitting holes 6a and the weight adjusting pins 6b may be varied according to need. In the embodiment of the present invention, three fitting holes 6a and three weight adjusting pins 6b ), So that the explanation can be made more convenient.

In addition, according to the present invention, when dust is detected as a reference or more and a notification situation occurs, the control unit 3000 displays the notification status through the automatic communication signal output unit 1000 and prompts the user to solve the problem quickly, The first switching transistor sw1 and the second switching transistor sw2 are connected in parallel to the power supply line 1110. The power supply unit 1110 includes a power supply unit 1110, a first switching transistor, a second switching transistor, a third switching transistor, a fourth switching transistor, A second circuit connection switch (sw2), and a communication control section (1120).

The power source unit 1110 applies power to its own power source.

The first switching transistor Q1 switches the circuit according to a switching signal input to the base.

The second switching transistor Q2 operates in accordance with the operation of the first switching transistor and switches the power source output from the power source unit.

The third switching transistor Q3 switches the circuit according to a switching signal input to the base.

The fourth switching transistor Q4 is provided on the other side of the output terminal of the power supply unit to switch the power supply unit output from the power supply unit.

The relay switch RL1 is coupled to the output terminal of the fourth switching transistor and generates a magnetic force when the fourth switching transistor is switched.

The first circuit connection switch sw1 performs a function of energizing the circuit by pulling the iron piece by the relay switch.

The second communication signal output power switch sw2 serves to induce a communication signal to be output through the communication signal output unit 1150 by supplying power to the communication signal output control unit 1140 while the iron wire is pulled by the relay switch do.

The communication controller 1120 switches the third switching transistor and the fourth switching transistor to switch the relay switch so that the first circuit connection switch and the second communication signal output power switch are switched, A first circuit connection switch configured to switch the first switching transistor and the second switching transistor while turning off the switching transistor and the fourth switching transistor and to turn off the relay switch and simultaneously to be interlocked with the first switching transistor and the second switching transistor And maintains the communication state by continuing the switching state of the second communication signal output power switch.

In addition, the present invention is characterized in that it comprises a circuit board 1131 for operation, a wire piece 1132 for connection to a power supply for operating a communication signal control unit, a first resilient holding means 1133, a second resilient holding means 1134, (1133a), and a manual operation switch (1135).

The circuit-operating piece 1131 contacts the first circuit connection switch sw1 and relays the power delivered from the second switching transistor to continue the flow of power.

The communication signal output control unit power connection iron piece 1132 is designed to operate in conjunction with the circuit operation iron piece 1131. When the circuit operation iron piece 1131 is turned on, power is supplied to the communication signal output control unit 1140 Thereby inducing the communication device to operate.

The first elastic holding means 1133 is provided at the lower end of the circuit operation steel plate 1131 so that the first circuit connection switch sw1 and the circuit operation wire 1131 are always kept in the off state when the relay switch is not operated .

The second elastic holding means 1134 is installed on the upper portion of the first circuit connecting switch sw1 and is spaced apart from the first elastic holding means by a predetermined distance. When the relay switch is operated, the circuit breaker 1131 is pulled to be coupled with the first resilient holding means 1133 while the first resilient holding means is overlapped, and at the same time, the first circuit connecting switch sw1 is switched Even if the operation of the relay switch is stopped, the state of attaching the circuit breaker 1131 continues to maintain the power supply state through the first switching transistor and the second switching transistor. At this time, when the circuit breaker 1131 is operated by the operation of the relay switch, the communication piece 1132 is automatically operated to output the communication signal to the outside.

The gap maintaining means 1133a guides the second elastic holding means 1134 and the first elastic holding means 1133 to be engaged with each other while maintaining a constant gap without being directly coupled to each other when the first elastic holding means 1134 and the first elastic holding means 1133 are engaged, 1133 and the second resilient holding means 1134 can be more smoothly separated from each other by the action of the gap maintaining means at the time of disassembly. If the gap maintaining means is not present, the first elastic holding means 1133 and the second elastic holding means 1134 are directly attached to each other, so that mutual separation becomes difficult later. Accordingly, in the present invention, the first elastic holding means 1133 and the second elastic holding means 1134 can be easily separated by further providing the gap holding means 1133a.

The manual operation switch 1135 is connected to a wire for circuit operation and a wire for connection to a communication signal output control unit. When the user operates the wire to interrupt the operation of the communication signal, So that the operation of the communication signal output unit is stopped so that the communication signal is no longer output.

Hereinafter, the operation of the communication signal automatic output unit 1000 will be described.

First, a control relation for outputting a communication signal will be described. In the control unit, a power is applied to the third switching transistor and the fourth switching transistor to operate the relay switch RL1. Accordingly, the first circuit connection switch sw1 and the communication signal output power switch sw2 are turned on by the operation of the relay switch, and the power is applied to the communication signal output control unit 1140 to display the communication signal.

When the first circuit connection switch sw1 is operated, the control unit interrupts the operation of the third switching transistor and the fourth switching transistor to cut off the operation of the relay switch, and simultaneously operates the first switching transistor and the second switching transistor.

On the other hand, if the operator turns off the first circuit connecting switch and the communication signal output power switch in the middle of outputting the communication signal, the control unit recognizes this, and then the third switching transistor and the fourth switching transistor are operated, It is possible to keep the closed circuit while moving the iron piece and at the same time return the power outputted to the communication signal control part 1140 to continuously operate the communication signal output part 1150.

That is, according to the present invention, if the notification factor is not solved, the communication signal is continuously output to induce the notification factor to be solved.

That is, when a switching signal is applied to the third switching transistor, the fourth switching transistor, the first switching transistor, and the second switching transistor in the control unit, the communication signal is automatically output by returning the power source again, It is possible to induce the operator to reliably solve the cause of the communication signal.

If it is no longer necessary to output a communication signal, the control unit no longer applies a power supply signal to the first switching transistor, the second switching transistor, the third switching transistor, and the fourth switching transistor. ) Can be manually operated by a user to interrupt the communication signal.

1, 1a, 1b: light guide plate
2: Bar pattern
110:
112: Cleaning device
130: common laser head
140: base plate
150: stage moving part
160:
200:
1000: Communication signal automatic output section
2000: Dust measuring means
3000: dust measurement control unit
4000:

Claims (5)

A stage 120 on which a light guide plate is loaded on an upper surface;
A laser head 130 which receives a laser beam from a laser source and forms a predetermined pattern on the surface of the light guide plate loaded on the stage;
A head driving unit 160 having a motor for reciprocally driving the laser head relative to the stage;
A cleaning device 112 installed at an end of the stage for cleaning the light guide plate to guide the light guide plate to form a bar pattern with dust removed;
Dust measuring means 2000 installed at one end of the stage for measuring dust;
And a communication signal automatic output unit (1000) for outputting a notification signal to the outside when dust is detected by the dust measuring unit as a reference or abnormality;

Wherein the dust measuring means comprises:
An infrared transmitting means (A) for emitting an infrared ray; an infrared ray receiving means for receiving the light emitted from the infrared ray transmitting means and determining the inflow of dust according to the degree of the receiving amount, (C) for controlling the input voltage of the infrared transmitting means (A) to increase when the output voltage of the infrared receiving means (B) is smaller than a set value;
The infrared transmitting means (A)
A plurality of moving electromagnets 2a, 2b and 2c wound around the actuator 3 so as to be spaced apart from each other by a predetermined distance and a plurality of fixed electromagnets fixedly installed at positions adjacent to the moving electromagnets 2a, 2d, 2e, 2f); 2b and 2c and the stationary electromagnets 2d and 2e by flowing a current to the moving electromagnets 2a and 2b and 2c and the fixing electromagnets 2d and 2e and 2f, (2f), and drives the actuator (3); An infrared transmitter flow means (4) provided at the lower end of the actuator (3) for flowing the infrared transmitter back and forth; And a concave lens group (5) for varying the output of an infrared transmitter installed in the infrared transmitter flow means;
The infrared transmitter flow means (4)
An infrared ray transmission element 4a for outputting an infrared ray to the outside in proximity to the concave lens group 5 formed on the outer peripheral edge of one side of the actuator 3 in the longitudinal direction, And a solenoid (4c) for moving the infrared ray transmitting element by moving the moving bar so that the infrared ray transmitting element moves left and right. The laser processing apparatus for a lighting and display panel added with a cleaning function. delete The method according to claim 1,
The actuator 3 includes first through third fitting holes 6a for adjusting operational sensitivity and first through third weight adjusting pins 6b inserted into the fitting holes. And a movement speed adjusting means (6) are further provided on the upper surface of the laser processing apparatus. The method according to claim 1,
The concave lens group (5)
And a lens having different degrees of depression is selected by a movement operation of the infrared transmitter converting means so as to be able to output infrared rays of different intensity,
A third concave lens 5c provided at the center of the working rod and having a concave angle of 25 degrees;
A second concave lens 5b provided on the third concave lens 5c and having a concave angle of 15 degrees;
A first concave lens 5a provided on the second concave lens 152 and having a depression angle of 5 degrees;
A fourth concave lens 5d which is used when the infrared ray is to be output with a higher light output and is provided below the third concave lens 5c and has a concave angle of 35 degrees;
And a fifth concave lens 5e which is used when the infrared ray is to be output with a higher light intensity and is disposed below the fourth concave lens 5d and has a concave angle of 45 degrees. And a laser processing device for a display panel. The method according to claim 1,
The communication signal automatic output unit 1000,
A power supply unit 1110 for applying a power supply by its own power supply;
A first switching transistor Q1 for switching a circuit according to a switching signal input to the base;
A second switching transistor Q2 which operates in accordance with the operation of the first switching transistor and switches the power source output from the power source unit;
A third switching transistor Q3 for switching a circuit according to a switching signal input to the base;
A fourth switching transistor Q4 which is provided on the other side of the output terminal of the power supply unit and switches the power supply unit output from the power supply unit;
A relay switch RY3 coupled to the output terminal of the fourth switching transistor and generating a magnetic force when the fourth switching transistor is switched;
A first circuit connection switch (sw1) for performing a function of energizing the circuit while the iron wire is pulled by the relay switch;
A second communication signal output power switch sw2 for inducing a communication signal to be output through the communication signal output unit 1150 by supplying power to the communication signal output control unit 1140 while the iron wire is pulled by the relay switch, Wow;
The third switching transistor and the fourth switching transistor are switched to induce switching of the relay switch so that the first circuit connecting switch and the second communication signal output power source switch are switched, and then the third switching transistor and the fourth switching transistor A first circuit connection switch configured to turn off the transistor and to switch the first switching transistor and the second switching transistor so that the relay switch is turned off and simultaneously the first and second switching transistors are turned on, A communication control unit 1120 for maintaining the switching state of the switch and continuing the communication state;
A circuit breaker 1131 for contacting the first circuit connection switch sw1 and relaying power from the second switching transistor to continue the flow of power;
And a communication signal output control unit power supply unit for connecting the power supply to the communication signal output control unit 1140 to induce the communication device to operate when the circuit operation operating wire 1131 is turned on, A steel wire piece 1132;
A first elastic holding means 1133 provided at the lower end of the circuit operation steel plate 1131 and guiding the first circuit connection switch sw1 and the circuit operation wire 1131 to be kept in the off state at all times when the relay switch is not operated )and;
The first circuit connection switch (sw1) is installed above the first circuit connection switch (sw1). The first circuit connection switch (sw1) is spaced apart from the first elastic holding means by a predetermined distance. Even if the first circuit connection switch sw1 is switched and the operation of the relay switch is stopped while the first circuit connection switch sw1 is engaged with the first elastic holding means 1133 while the first circuit breaker 1131 is pulled and the first resilient holding means is overlapped, The operation state of the operating wire 1131 continues to maintain the power supply state through the first switching transistor and the second switching transistor. The second elastic holding means 1134 operates to automatically output the communication signal when the wire piece 1131 for circuit operation is operated by the operation of the relay switch. ;
The second elastic holding means 1134 and the first elastic holding means 1133 are guided to be engaged with each other while maintaining a constant gap without being directly coupled with each other when the first and second elastic holding means 1134 and 1133 are engaged, Spacing means (1133a) for guiding the means (1134) so that they can be separated from each other naturally during disassembly;
And a control unit for controlling the operation of the communication signal output unit by turning off the wire for the circuit operation and the wire for connecting the communication signal output control unit when the user operates the communication wire for interrupting the operation of the communication signal, Further comprising a manual operation switch (1135) for stopping the outputting of the communication signal so that the communication signal is no longer outputted.

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