KR101355426B1 - Printing apparatus - Google Patents

Abstract

The printing apparatus according to the present invention has a pattern unit for forming a printing pattern on a running object, and a printing unit having a supply pattern corresponding to the printing pattern and supplying and printing a printing agent to the printing pattern formed on the object. It includes. According to this configuration, accurate pattern printing on the object can be performed.

Description

[0001] PRINTING APPARATUS [0002]

The present invention relates to a printing apparatus, and more particularly, to a printing apparatus capable of improving printing quality by forming a printing pattern on an object and supplying a printing agent in accordance with the printing pattern.

As a display means, a thin film transistor liquid crystal display (TFT-LCD) is a digital display means for displaying information through a very thin liquid crystal. The thin film transistor-liquid crystal display device displays image information by controlling the change of liquid crystal and the amount of light passing through the polarizing plate, and is employed in a computer monitor, a mobile phone, a television, a digital camera, and the like.

Such display means generally comprise a glass substrate, a liquid crystal, and a backlight unit (BLU). Here, the backlight unit emits light from the rear of the display unit based on the display direction of the liquid crystal display and includes an optical sheet for emitting light. One side of the optical sheet has a surface shape having a texture, such as a sawtooth, and the other side facing the one side has a smooth surface shape formed of a transparent polymer. Due to the shape of one side and the other side of such an optical sheet, a considerable amount of incident incident light is transmitted, and the remaining incident light that is not transmitted is totally reflected.

On the other hand, the optical sheet is printed to have a texture by a roll printing method. By the way, the roll printing method, in general, after patterning the optical sheet on one surface for the formation of the texture, it is printed by applying a printing agent such as electronic ink. By the way, when a printing agent is applied to a predetermined printing pattern patterned on the optical sheet, the printing agent is applied out of a desired pattern to cause printing failure. In addition, it is difficult to precisely control the printing pattern formed on the optical sheet, which is disadvantageous for forming the precision pattern.

Republic of Korea Patent Publication No. 10-0947182 Republic of Korea Patent Registration No. 10-1241117

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and an object thereof is to provide a printing apparatus capable of improving print quality with print precision.

The printing apparatus according to the present invention for achieving the above object has a pattern unit for forming a print pattern on a running object, and a supply pattern corresponding to the print pattern, and supplies a printing agent to the print pattern formed on the object And a printing unit for printing.

According to one side, the pattern unit includes a plurality of pattern rollers each having a different printing pattern formed on the outer circumferential surface, and a plurality of support rollers for pressing and supporting the object with the plurality of pattern rollers, respectively, the printing unit Includes a plurality of supply rollers each having a different supply pattern corresponding to a printing pattern of each of the plurality of pattern rollers on an outer circumferential surface thereof, and a plurality of printing members for supplying printing agents to the plurality of supply rollers, respectively.

According to one side, at least one of the plurality of pattern rollers to form a multi-layer print pattern on the object at the same time, a plurality of feed rollers corresponding to the number of layers of the multi-layer print pattern are arranged side by side on the driving path of the object The object is printed by supplying the printing agent in a plurality of supply patterns respectively corresponding to the layers of the multilayered printing pattern.

According to one side, the pattern unit includes a plurality of pattern portions for forming different printing patterns on different objects, respectively, wherein the printing unit is a different supply pattern corresponding to the different printing patterns of the different objects; And a plurality of printing units for printing different objects, respectively, wherein the different objects are printed and then pressed together to be integrated.

According to one side, the pattern unit includes a first pattern portion for forming a multilayered first print pattern on the first object, and a second pattern portion for forming a multilayered second print pattern on the second object, The printing unit may include: a first printing unit configured to supply first and second printing agents to the first object by supplying first and second printing agents in first and second supply patterns corresponding to each layer shape of the first printing pattern, and the first printing unit; And a second printing unit for supplying the third and fourth printing agents to the second object by printing the third and fourth printing agents in the third and fourth supply patterns corresponding to each layer shape of the two-printing pattern, wherein the first and second objects After each print, they are pressurized and integrated together.

According to one side, the first pattern portion includes a first pattern roller having the first printed pattern, and a first support roller for pressing and supporting the first object with respect to the first pattern roller, the second pattern The part includes a second pattern roller having the second print pattern, and a second support roller for pressing and supporting the first object with respect to the second pattern roller.

According to one side, the first printing unit, the first and second printing rollers having first and second supply patterns respectively corresponding to each layer of the first printing pattern, and the first and second printing rollers And first and second supply members for supplying the first and second printing agents, respectively, wherein the second printing part includes third and fourth supply patterns corresponding to each layer of the second printing pattern, respectively. Third and fourth printing rollers, and third and fourth supplying members for supplying the first and second printing agents to the third and fourth printing rollers, respectively.

The printing apparatus according to the present invention having the above-described configuration can improve printing accuracy by supplying a printing agent with a supply pattern corresponding to the printing pattern after forming the printing pattern on the object.

In addition, a plurality of printing agents can be supplied and printed with a plurality of supply patterns corresponding to complex printing patterns, thereby ensuring print diversity and contributing to print quality improvement.

1 is a configuration diagram schematically showing a printing apparatus according to an embodiment of the present invention,
FIG. 2 is a sectional view schematically showing an enlarged first pattern portion shown in FIG. 1;
3 is a cross-sectional view schematically showing an enlarged first printing unit shown in FIG. 1;
4 is a cross-sectional view schematically showing an enlarged second pattern portion shown in FIG. 1;
FIG. 5 is a sectional view schematically showing an enlarged second printing unit shown in FIG. 1, and
6 is a cross-sectional view schematically illustrating the pressurization unit shown in FIG. 1.

Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings.

Referring to FIG. 1, a printing apparatus 1 according to a preferred embodiment of the present invention includes a pattern unit 10 and a printing unit 40.

For reference, the printing apparatus 1 described in the present invention is illustrated to manufacture a backlight unit (BLU) of a thin film transistor liquid crystal display (TFT-LCD). However, the present invention is not necessarily limited thereto, and it can be applied to manufacturing various electronic components using electronic ink.

The pattern unit 10 forms the print patterns 21a and 31a on the moving objects O1 and O2. The pattern unit 10 includes first and second pattern portions (20, 30). For reference, the object O1 or O2 includes a flexible substrate, but is not limited thereto.

As shown in FIGS. 1 and 2, the first pattern part 20 includes a first pattern roller 21 having a first printing pattern 21a formed on an outer circumferential surface thereof, and a first object with a first pattern roller 21. And a first supporting roller 22 for pressing and supporting (O1).

As shown in FIGS. 1 and 4, the second pattern part 30 includes a second pattern roller 31 having a second printing pattern 31a formed on an outer circumferential surface thereof, and a second pattern roller 31 having a second pattern roller 31. It includes a second support roller 32 for pressing and supporting the object (O2).

Here, the first and second printed patterns 21a and 31a have different pattern shapes, but are illustrated as having a multilayer structure. However, the present invention is not limited thereto, and modifications of the first and second printing patterns 21a and 31a having a pattern shape of a three-layer structure or a single layer structure may be possible. In addition, it is not illustrated only by said pattern unit (10) comprises a first and second pattern portions (20, 30), modified examples can comprising in response to the desired printed matter yield one or three or more pattern parts of Do.

The printing unit 40 has supply patterns 51a, 53a, 61a, and 63a corresponding to the first and second print patterns 31a, and the first and second objects O1 and O2. Printing agent P1 (P2) (P3) (P4) is supplied and printed. To this end, the printing unit 40 includes first and second printing parts 50 and 60. The number of the printing units 50 and 60 may be variable to correspond to the pattern units 20 and 30.

As shown in FIG. 3, the first print unit 50 may include first and second prints using first and second supply patterns 51a and 53a corresponding to each layer shape of the first print pattern 21a. P1 and P2 are supplied to print the first object O1. To this end, the first printing unit 50 is a first printing roller 51 having the first supply pattern 51a, a first printing agent P1 to supply the first printing roller 51 to the first printing roller 51. The second printing roller 53 having the supply member 52, the second supply pattern 53a, and the second supply member 54 supplying the second printing agent P2 to the second printing roller 53. It includes. Here, the first and second supply members 52 and 54 have a roller shape, respectively, and the first and second printing agents P1 and P2 from the first and second supply sources 52a and 54a. Each of them is supplied to the first and second supply patterns 51a and 53a of the first and second printing rollers 51 and 53.

As shown in FIG. 5, the second print part 60 may include third and fourth prints using third and fourth supply patterns 61a and 63a corresponding to each layer shape of the second print pattern 31a. (P3) and P4 are supplied to print the second object O2. To this end, the second printing unit 60 is a third printing roller 61 having a third supply pattern 61a and a third printing agent P3 supplied to the third printing roller 61. The fourth printing roller 63 having the supply member 62, the fourth supply pattern 63a, and the fourth supply member 64 supplying the fourth printing agent P4 to the fourth printing roller 63. It includes. Here, the third and fourth supply members 62 and 64 also have a roller shape, respectively, and the third and fourth printing agents P3 and P4 are formed from the third and fourth supply sources 62a and 64a. It is supplied to the third and fourth printing rollers (61, 63).

The first and second print portions 50 and 60 both superimpose and print the first and second print patterns 21a and 31a of the multilayer structure on the first and second objects O1 and O2. . To this end, the first and second printing rollers 51 and 53 are arranged side by side on the movement path of the first object O1, and the third and fourth printing rollers 61 and 63 are also made of The two objects O2 are arranged side by side on the movement path. In addition, the first to fourth supply patterns 51a, 53a, 61a, and 63a correspond to the respective layer shapes of the first and second print patterns 21a and 31a.

Meanwhile, the first and second objects O1 and O2 printed by the first and second printing units 50 and 60 are, as illustrated in FIGS. 1 and 6, the first and second pressing rollers. By passing through the pressurizing unit 70 including the 71 and 72, it mutually presses and is integrated.

The printing operation of the printing apparatus 1 according to the present invention having the above configuration will be described with reference to FIGS. 1 to 6.

First, the printing operation of the first object O1 will be described. Referring to FIG. 2, the first object O1 passes through between the first pattern roller 21 and the first support roller 22 of the first pattern portion 20. Then, the first printing pattern 21a provided on the first pattern roller 21 is formed on the first object O1. In this case, the first printing pattern 21a has a multilayer shape.

When the first print pattern 21a is formed on the first object O1, the first print pattern 21a is printed via the first print unit 50 as illustrated in FIG. 3. Specifically, the first object O1 is formed by the first printing agent P1 supplied to the first supply pattern 51a of the first printing roller 51 by passing through the first printing roller 51. The first print pattern 21a formed on the first object O1 is first printed with the first supply pattern 51a. Here, the first supply pattern 51a corresponds to one layer shape of the multilayered first printing pattern 21a formed on the first object O1.

The second printing agent P2 is supplied by the first object O1 printed in the first supply pattern 51a via the second printing roller 53 arranged in parallel with the first printing roller 51. The first printing pattern 21a formed on the first object O1 is overprinted by the second supply pattern 53a of the second printing roller 53. In this case, the second supply pattern 53a corresponds to the two-layer shape of the first print pattern 21a. As a result, pattern printing corresponding to the first printing pattern 21a is completed on the first object O1.

Next, the printing operation of the second object O2 will be described. Referring to FIG. 4, the second object O2 passes between the second pattern roller 31 and the second support roller 32 of the second pattern portion 30. As a result, a multilayered second printing pattern 31a provided on the second pattern roller 31 is formed on the second object O2. For reference, the first and second print patterns 21a and 31a are different from each other.

When the second print pattern 31a is formed on the second object O2, as shown in FIG. 5, the second print pattern 31a is printed via the second print unit 60. Specifically, the second object O2 is formed by the third printing agent P3 supplied to the third supply pattern 61a of the third printing roller 61 by passing through the third printing roller 61. The second print pattern 31a formed on the second object O2 is printed. Here, the second supply pattern 61a corresponds to the one-layer shape of the second print pattern 31a.

The second object O2 printed in the third supply pattern 61a passes through the fourth printing roller 63 arranged in parallel with the third printing roller 61. Therefore, the second printing pattern 31a formed on the second object O2 is overlapped and printed by the fourth supply pattern 63a of the fourth printing roller 63 to which the fourth printing agent P4 is supplied. . In this case, the fourth supply pattern 63a corresponds to the two-layer shape of the second print pattern 31a. Therefore, pattern printing corresponding to the second printing pattern 31a provided in the second pattern roller 31 on the second object O2 is completed.

For reference, the printing operation of each of the first and second objects O1 and O2 has been separately described, but as shown in FIG. 1, the printing operations of the first and second objects O2 may be simultaneously performed.

The first and second objects O2 printed by the first and second print patterns 21a and 31a enter each other between the first and second pressing rollers 71 and 72 as shown in FIG. Pressurized and integrated.

On the other hand, the object and the pressure roller in the environment, that is, the appropriate temperature (heat) involved when forming (molding) the initial desired shape on the object or pressing and bonding the first and second objects (01, 02). It is given to the forming roller, and it is necessary to cope with the change of the volume of the object. Accordingly, although not shown in the drawings, it is preferable to further include a temperature control unit for controlling the temperature of the object, heating or cooling the pressing roller and the forming roller.

In the present embodiment, the printing apparatus 1 prints and prints different print patterns 21a and 31a on different first and second objects O1 and O2, but the present invention is not limited thereto. Do not. That is, various modifications are possible in which the printing apparatus 1 supplies at least one printing agent with at least one supply pattern and prints a single layer or a multilayered printing pattern on one object.

As described above, although described with reference to the preferred embodiment of the present invention, those skilled in the art various modifications and variations of the present invention without departing from the spirit and scope of the invention described in the claims below I can understand that you can.

1: printing apparatus 10: pattern unit
20: first pattern portion 30: second pattern portion
40: printing unit 50: first printing unit
60: second printing unit 70: pressurizing unit

Claims (7)

A printing apparatus for forming a print pattern on a running object,
A pattern unit including a roller having a printing pattern formed on an outer circumferential surface thereof; And
A printing unit having a supply pattern corresponding to the printing pattern and including a roller for supplying and printing a printing agent to the printing pattern formed on the object; / RTI >
The pattern unit includes a plurality of pattern rollers each having a different printing pattern formed on the outer circumferential surface, and a plurality of support rollers for pressing and supporting the object with the plurality of pattern rollers, respectively,
The printing unit may include a plurality of supply rollers having different supply patterns corresponding to the print patterns of the plurality of pattern rollers on an outer circumferential surface thereof, and a plurality of printing members for supplying printing agents to the plurality of supply rollers, respectively. Including,
At least one of the plurality of pattern rollers simultaneously forms a multi-layer print pattern on the object,
A plurality of supply rollers corresponding to the number of layers of the multi-layered printing pattern are arranged side by side on the driving path of the object, and the printing agent is supplied to the plurality of supply patterns corresponding to each layer of the multi-layered printing pattern to supply the printing agent. Printing apparatus for printing an object. delete delete The method of claim 1,
The pattern unit includes a plurality of pattern parts for forming different print patterns on different objects, respectively,
The printing unit includes a plurality of printing units which respectively print the different objects in different supply patterns corresponding to the different printing patterns of the different objects.
The different objects are printed after each other, the press is integrated with each other. A printing apparatus for forming a print pattern on a running object,
A pattern unit including a roller having a printing pattern formed on an outer circumferential surface thereof; And
A printing unit having a supply pattern corresponding to the printing pattern and including a roller for supplying and printing a printing agent to the printing pattern formed on the object; / RTI >
The pattern unit includes a first pattern portion for forming a multilayered first print pattern on the first object, and a second pattern portion for forming a multilayered second print pattern on the second object,
The printing unit may include: a first printing unit configured to supply first and second printing agents to the first object by supplying first and second printing agents in first and second supply patterns corresponding to each layer shape of the first printing pattern, and the first printing unit; And a second printing unit for supplying the third and fourth printing agents to the second object by supplying the third and fourth printing agents to the third and fourth supply patterns corresponding to each layer shape of the two-printing pattern.
And the first and second objects are respectively pressurized after being printed to be integrated. The method of claim 5,
The first pattern portion includes a first pattern roller having the first print pattern, and a first support roller for pressing and supporting the first object with respect to the first pattern roller.
And the second pattern part includes a second pattern roller including the second printing pattern, and a second support roller to pressurize and support the first object with respect to the second pattern roller. The method of claim 5,
The first printing unit may include first and second printing rollers each having first and second supply patterns corresponding to respective layers of the first printing pattern, and the first and second printing rollers. First and second supply members for supplying a second printing agent, respectively,
The second printing unit may include third and fourth printing rollers each having third and fourth supply patterns corresponding to each layer of the second printing pattern, and the first and fourth printing rollers. And a third and fourth supply member for supplying the second printing agent, respectively.

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