KR20150044773A - Mold and touch window manufactured using the same - Google Patents

Mold and touch window manufactured using the same Download PDF

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Publication number
KR20150044773A
KR20150044773A KR20130124248A KR20130124248A KR20150044773A KR 20150044773 A KR20150044773 A KR 20150044773A KR 20130124248 A KR20130124248 A KR 20130124248A KR 20130124248 A KR20130124248 A KR 20130124248A KR 20150044773 A KR20150044773 A KR 20150044773A
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KR
South Korea
Prior art keywords
pattern
region
disposed
area
sub
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KR20130124248A
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Korean (ko)
Inventor
이정기
방정환
이준
홍범선
구찬규
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엘지이노텍 주식회사
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Priority to KR20130124248A priority Critical patent/KR20150044773A/en
Publication of KR20150044773A publication Critical patent/KR20150044773A/en

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    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/0412—Digitisers structurally integrated in a display

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Human Computer Interaction (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Position Input By Displaying (AREA)

Abstract

A mold according to an embodiment comprises: a substrate comprising a first region and a second region; A first pattern disposed in each of the first region and the second region and extending in one direction; And a second pattern disposed on the substrate.
A touch window according to an embodiment includes: a substrate; A first sub-pattern disposed on the substrate; A second subpattern disposed adjacent to the first subpattern; And an electrode layer disposed in the second sub pattern, wherein a part of the first sub pattern is staggered with respect to each other.

Description

MOLD AND TOUCH WINDOW MANUFACTURED USING THE SAME "

The present disclosure relates to molds and touch windows manufactured therefrom.

2. Description of the Related Art In recent years, a touch panel has been applied to an image displayed on a display device in various electronic products by a method of touching an input device such as a finger or a stylus.

The touch panel is typically divided into a resistive touch panel and a capacitive touch panel. The resistance film type touch panel senses that the resistance changes according to the connection between the electrodes when the pressure is applied to the input device, and the position is detected. A capacitance type touch panel senses a change in electrostatic capacitance between electrodes when a finger touches them, thereby detecting the position. Considering the convenience of the manufacturing method and the sensing power, recently, in a small model, the electrostatic capacity method has attracted attention.

Indium tin oxide (ITO), which is most widely used as a transparent electrode of a touch panel, is expensive and is physically easily hit by bending and warping of the substrate, thereby deteriorating the characteristics of the electrode. As a result, flexible) devices. In addition, when applied to a large size touch panel, a problem arises due to high resistance.

In order to solve such problems, active researches on alternative electrodes are under way. In particular, a metal material is formed in a mesh shape to replace ITO. When the mesh is formed, imprinting can be performed using a large-area mold having a nano pattern and a micro pattern. For such a large-area mold, it is necessary to form a large-size nano-pattern. However, it is technically and costly to form a large-sized nano-pattern at a time. Further, there is a problem in that when a laminated touch panel is manufactured, a plurality of cells are arrayed, which makes it difficult to accurately align the cells.

Embodiments are directed to providing a mold and a touch window with improved reliability.

A mold according to an embodiment comprises: a substrate comprising a first region and a second region; A first pattern disposed in each of the first region and the second region and extending in one direction; And a second pattern disposed on the substrate.

A touch window according to an embodiment includes: a substrate; A first sub-pattern disposed on the substrate; A second subpattern disposed adjacent to the first subpattern; And an electrode layer disposed in the second sub pattern, wherein a part of the first sub pattern is staggered with respect to each other.

Embodiments can provide large area molds. As a result, the mass productivity of the touch screen panel manufactured therefrom can be improved.

On the other hand, the embodiment is advantageous in terms of technical and price because the nanopattern is formed by using a plurality of small-area molds. In addition, the mass productivity can be improved.

1 is a perspective view of a mold according to an embodiment.
FIG. 2 is an enlarged view of FIG.
3 is a cross-sectional view showing a section cut along the line I-I 'in Fig.
FIGS. 4 to 6 are views for explaining a method for manufacturing the mold according to the embodiment.
FIGS. 7 to 15 are sectional views for explaining a touch window manufactured from the mold according to the embodiment.
16 is a plan view of a touch window made from a mold according to an embodiment.
17 is a perspective view of a mold according to another embodiment.
18 is an enlarged view of FIG. 17B on an enlarged scale.
19 to 21 are views for explaining a method for manufacturing a mold according to another embodiment.
22 to 25 are sectional views for explaining a touch window made from a mold according to another embodiment.
26 is a plan view of a touch window made from a mold according to another embodiment.
FIG. 27 is an enlarged view of FIG. 26C.

In the description of the embodiments, it is to be understood that each layer (film), area, pattern or structure may be referred to as being "on" or "under / under" Quot; includes all that is formed directly or through another layer. The criteria for top / bottom or bottom / bottom of each layer are described with reference to the drawings.

The thickness or the size of each layer (film), region, pattern or structure in the drawings may be modified for clarity and convenience of explanation, and thus does not entirely reflect the actual size.

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

First, a mold according to an embodiment and a touch window manufactured therefrom will be described with reference to FIGS. 1 to 16. FIG. 1 is a perspective view of a mold according to an embodiment. FIG. 2 is an enlarged view of FIG. 3 is a cross-sectional view showing a section cut along the line I-I 'in Fig. FIGS. 4 to 6 are views for explaining a method for manufacturing the mold according to the embodiment. FIGS. 7 to 15 are sectional views for explaining a touch window manufactured from the mold according to the embodiment. 16 is a plan view of a touch window made from a mold according to an embodiment.

Referring to FIGS. 1 to 3, the mold 10 according to the embodiment includes a substrate 11, a first pattern 21, a second pattern 31, and an align pattern 41.

The substrate 11 may include a first region 1A, a second region 2A, a third region 3A, and a fourth region 4A. The first region 1A, the second region 2A, the third region 3A, and the fourth region 4A are regions divided according to the first pattern 21. That is, each region is an area constituting the unit first pattern 21.

The first region 1A, the second region 2A, the third region 3A, and the fourth region 4A may be spaced apart from each other. Therefore, the first patterns 21 disposed in the first area 1A, the second area 2A, the third area 3A, and the fourth area 4A may be spaced apart from each other.

The area of the substrate 11 may be 30 cm (w) X 30 cm (h) or more. Specifically, the area of the substrate 11 may be 30 cm (w) X 30 cm (h) to 100 cm (w) X 100 cm (h). The area of the substrate 11 is an area where the exposure process for forming the first pattern 21 and the second pattern 31 can proceed at one time. The mass productivity of the touch screen panel manufactured from the large area base material 11 can be improved through such a large area base material 11.

The first region 1A includes a first pattern 21 extending in one direction. The first pattern 21 extends in one direction within the first region 1A. The first pattern 21 may be a linear pattern. The first pattern 21 may be disposed entirely within the first region 1A.

The line width w1 of the first pattern 21 may be several nm to several hundreds nm. The line width w1 of the first pattern 21 may be about 10 nm to 500 nm. Preferably, the line width w1 of the first pattern 21 may be about 100 nm to 200 nm. The first pattern 21 may have a negative shape.

The first pattern 21 may be formed by imprinting the first pattern 21 having a small area corresponding to each region. Therefore, the first pattern 21 is formed in each region through four first pattern 21 forming molds corresponding to the first region 1A, the second region 2A, the third region 3A, and the fourth region 4A The first pattern 21 can be formed.

Conventionally, a mold for forming the first pattern 21 having a large area is required to form the first pattern 21. However, such a large-area first pattern 21 forming mold is very disadvantageous in terms of technical and price. That is, for the large-area mold, it is very difficult to form the first pattern 21 having a large area at a time. However, in the embodiment, the first pattern 21 is formed using a mold having a small area corresponding to each divided area, which is advantageous from the technical and cost point of view. That is, since the first pattern 21 is formed using a plurality of small-area molds, the reliability is improved as compared with a case where the first pattern 21 is formed with a large-area mold at one time. In addition, the mass productivity can be improved.

The first region 1A includes a second pattern 31. [ The second pattern 31 may be arranged in a mesh shape in the first region 1A. That is, the second pattern 31 may include a mesh opening portion and a mesh front end portion. At this time, the mesh opening may have various shapes such as a square shape, a diamond shape, a pentagon, a hexagonal polygonal shape, or a circular shape.

The second pattern 31 may include unit second patterns 31U1, 31U2, 31U3, and 31U4. For example, as shown in FIG. 1, the unit second patterns 31U1, 31U2, 31U3, and 31U4 may be provided in the first region 1A. Each of the unit second patterns 31U1, 31U2, 31U3, and 31U4 may form an electrode portion included in one touch window. Four unit second patterns 31U1, 31U2, 31U3, and 31U4 are disposed in the first area 1A, the second area 2A, the third area 3A, and the fourth area 4A, respectively. However, the embodiment is not limited to this, and only one unit second pattern may be disposed in each of the regions 1A, 2A, 3A, and 4A. Accordingly, the unit second patterns 31U1, 31U2, 31U3, and 31U4 may be provided in various numbers within each region.

The line width w2 of the second pattern 31 may be several 탆. For example, the line width w2 of the second pattern 31 may be about 1 탆 to 7 탆. In addition, the line width w2 of the second pattern 31 may be 1 탆 to 3 탆. The second pattern 31 may have a negative shape.

The second pattern 31 may be formed by a photolithography process. That is, the second pattern 31 may be formed through a series of processes such as exposure, development, and etching.

Also, the second pattern 31 may be formed by a laser etching process.

The first region 1A includes an alignment pattern 41. [ The alignment pattern 41 may be disposed at one end of the first region 1A.

The second region 2A, the third region 3A, and the fourth region 4A may be the same as or similar to the first region 1A. Although the substrate 11 is illustrated as having four regions of a first region 1A, a second region 2A, a third region 3A, and a fourth region 4A in the figure, But is not limited thereto. Thus, the substrate 11 may include regions of varying numbers and shapes.

Hereinafter, with reference to Figs. 4 to 6, a method for manufacturing the mold 10 according to the embodiment will be described.

4, a plurality of small-area molds 1A ', 2A', 3A ', and 4A' may be placed on the base material 11. As shown in FIG. Each of the small area molds 1A ', 2A', 3A ', and 4A' may include a first pattern 21 '. In FIG. 4, four small-area molds 1A ', 2A', 3A 'and 4A' are provided, but the embodiment is not limited thereto. Accordingly, the first pattern 21 can be formed through various numbers of small-area molds.

Referring to FIG. 5, the first pattern 21 may be formed by imprinting the small area molds 1A ', 2A', 3A ', and 4A'. That is, the first area 1A, the second area 2A, the third area 3A, and the third area 3A corresponding to the small area molds 1A ', 2A', 3A ', and 4A' The first pattern 21 may be formed in the fourth region 4A.

Referring to FIG. 6, a plurality of small area molds 1A '', 2A '', 3A '' and 4A '' may be positioned on the substrate 11 on which the first pattern 21 is formed. Each of the small area molds 1A '', 2A '', 3A '', and 4A '' may include a second pattern 31 '. A second pattern (see reference numeral 31 in FIG. 1) may be formed by imprinting the small area molds 1A '', 2A '', 3A '', and 4A ''. However, the embodiment is not limited to this, and as described above, the second pattern 31 may be formed by a photolithography process. That is, the second pattern 31 may be formed through a series of processes such as exposure, development, and etching. Also, the second pattern 31 may be formed by a laser etching process.

Hereinafter, a touch window manufactured using the mold 10 will be described. Referring to FIG. 7, the mold 10 according to the embodiment can be placed on the resin layer 200 '.

Referring to FIG. 8, the mold 10 may be imprinted on the resin layer 200 '. Referring to FIG. 9, the embossed first sub-pattern 211 and the second sub-pattern 212 may be fabricated through the imprinting process.

Referring to FIG. 10, an electrode material 220 'may be formed on the first sub pattern 211 and the second sub pattern 212. The electrode material 220 'may be formed by vapor deposition or plating.

Referring to FIG. 11, the electrode material 220 'may be etched. At this time, a difference in etching area occurs due to the difference in the bonding area between the structure of the first sub pattern 211 and the second sub pattern 212 and the electrode material 220 '. That is, since the bonding area of the second sub pattern 212 and the electrode material 220 'is larger than the bonding area of the first sub pattern 211 and the electrode material 220' The etching of the electrode material 220 'formed on the subpattern 212 occurs less. That is, according to the same etching rate, the electrode material 220 'formed on the second subpattern 212 remains, and the electrode material 220' formed on the first subpattern 211 is etched and removed do. Therefore, the electrode layer 220 may be formed only on the second sub-pattern 212, and the electrode layer 220 may be disposed in the second pattern.

12, a large-area first cell array 200 having a pattern corresponding to the mold 10 according to the embodiment may be formed.

Referring to FIG. 13, the electrode layer 220 may be patterned in the first cell array 200. That is, the electrode layer 220 may be patterned in a bar pattern extending in one direction.

14, the second cell array 300 may be fabricated through the process of FIGS. 7-13. Referring to FIG. At this time, the second cell array 300 may pattern the electrode layer 320 in the other direction crossing the first direction, unlike the first cell array 200.

The first cell array 200 and the second cell array 300 can be easily and precisely aligned through the alignment patterns 42 and 43.

Referring to FIG. 15, the aligned first cell array 200 and the second cell array 300 may be laminated together. Then, by cutting each unit cell, the touch window 100 can be manufactured.

16, the touch window 100 includes a valid area AA for sensing the position of an input device (e.g., a finger or the like), and a non-valid area UA ) Are defined.

Here, the electrode unit 210 may be formed in the effective area AA to sense the input device. A wiring 400 electrically connecting the electrode unit 210 may be formed in the non-effective area UA. An external circuit or the like connected to the wiring 400 may be located in the ineffective area UA.

The electrode unit 210 may sense whether an input device such as a finger is in contact. The electrode units 210 are arranged in a mesh shape. Specifically, the electrode unit 210 includes a mesh opening OA and a mesh line LA.

Since the electrode part 210 has a mesh shape, the pattern of the electrode part 210 on the effective area AA can be made invisible. That is, even if the electrode unit 210 is formed of metal, the pattern can be made invisible. Also, even if the electrode unit 210 is applied to a touch window of a large size, the resistance of the touch window can be lowered.

The electrode unit may include a first sub pattern 211, a second sub pattern 212, and an electrode layer 220 as described above with reference to FIG.

The first sub pattern 211 is disposed in the mesh opening OA. The second sub pattern 212 is disposed on the mesh line portion LA. Accordingly, the second sub patterns 212 are arranged in a mesh shape. The first sub pattern 211 and the second sub pattern 212 may be embossed.

The electrode layer 220 is disposed on the second sub-pattern 212. The electrode layer 220 may be disposed entirely on the second sub pattern 212. That is, the electrode layer 220 may be disposed while surrounding the second sub pattern 212.

The electrode layer 220 is disposed on the mesh line LA and the electrode layer 220 is disposed on the mesh. The electrode layer 220 may include various metals having excellent electrical conductivity. For example, the electrode layer 220 may include Cu, Au, Ag, Al, Ti, Ni, or an alloy thereof.

Then, the wiring 400 is formed in the ineffective area UA. The wiring 400 may apply an electrical signal to the electrode unit 210. The wiring 400 may be formed in the ineffective area UA so as not to be seen.

The wiring 400 may be formed together with the mold when the first sub pattern 211 and the second sub pattern 212 are formed.

Meanwhile, although not shown in the drawing, a circuit board connected to the wiring 400 may further be positioned. As the circuit board, various types of printed circuit boards can be applied. For example, a flexible printed circuit board (FPCB) or the like can be applied.

Hereinafter, a mold according to another embodiment and a touch window manufactured therefrom will be described with reference to FIGS. 17 to 27. FIG. For the sake of clarity and conciseness, the same or similar parts as those described above will not be described in detail. 17 is a perspective view of a mold according to another embodiment. 18 is an enlarged view of FIG. 17B on an enlarged scale. 19 to 21 are views for explaining a method for manufacturing a mold according to another embodiment. 22 to 25 are sectional views for explaining a touch window made from a mold according to another embodiment. 26 is a plan view of a touch window made from a mold according to another embodiment. FIG. 27 is an enlarged view of FIG. 26C.

17 and 18, the substrate 11 of the mold according to another embodiment may include a first region 1B and a second region 2B. The first region 1B includes a first pattern 25 extending in one direction. The second region 2B includes a first pattern 26 extending in one direction.

The first region 1B and the second region 2B may be in contact with each other. Accordingly, a tangent line L1 at which the first region 1B and the second region 2B are in contact can be defined.

The first pattern 25 disposed in the first region 1B and the first pattern 26 disposed in the second region 2B may be staggered with respect to the tangent line L1. That is, the first pattern 25 disposed in the first region 1B and the first pattern 26 disposed in the second region 2B are staggered from each other.

The unit second patterns 35 may be disposed over the first region 1B and the second region 2B. That is, the unit second patterns 35 may be disposed in both the first region 1B and the second region 2B.

Hereinafter, with reference to Figs. 19 to 21, a method for manufacturing a mold according to another embodiment will be described.

First, referring to FIG. 19, a plurality of small-area molds 1B ', 2B'... Can be placed on the substrate 11. Each of the small area molds 1B ', 2B',... May include a first pattern 25 ', 26'. In FIG. 4, eight small molds 1B ', 2B',... Are shown, but the embodiment is not limited thereto. Accordingly, the first patterns 25 and 26 can be formed through various numbers of small-area molds.

20, the first patterns 25 and 26 can be formed by imprinting the small-area molds 1B 'and 2B' The first patterns 25 and 26 may be formed in the first region 1B and the second region 2B corresponding to the first regions 1B ', 2B', and so on.

21, a plurality of small area molds 1B '', 2B '', 3B '' and 4B '' can be placed on the substrate 11 on which the first patterns 25 and 26 are formed . Each of the small area molds 1B '', 2B '', 3B '', 4B '' may include a second pattern 35 '. The second pattern (see reference numeral 35 in FIG. 17) may be formed by imprinting the small area molds 1A '', 2A '', 3A '', and 4A ''. However, the embodiment is not limited to this, and as described above, the second pattern 35 may be formed by a photolithography process. That is, the second pattern 35 may be formed through a series of processes such as exposure, development, and etching. Also, the second pattern 35 may be formed by a laser etching process.

Referring to FIG. 22, a first cell array 250 may be fabricated through the mold. The first cell array 250 includes a substrate 130, first sub patterns 251 and 253, a second sub pattern 252, and an electrode layer 260.

The substrate 130 includes a first region 1C and a second region 2C. At this time, a tangent line L2 in contact with the first region 1C and the second region 2C may be defined.

Some of the first sub patterns 251 and 253 may be offset from each other. Specifically, the first sub-pattern 251 arranged in the first region 1C and the first sub-pattern 253 arranged in the second region 2C can be displaced from each other at the tangent line L2 have.

Referring to FIG. 23, the electrode layer 260 may be patterned in the first cell array 250. That is, the electrode layer 260 may be patterned in a bar pattern extending in one direction.

24, a second cell array 270 may be fabricated. At this time, the second cell array 270 may pattern the electrode layer 360 in the other direction crossing the first direction, unlike the first cell array 250.

The first cell array 250 and the second cell array 270 can be easily and accurately aligned through the alignment patterns 42 and 43.

Referring to FIG. 25, the aligned first cell array 250 and the aligned second cell array 270 may be laminated together. Then, by cutting each unit cell, the touch window 120 can be manufactured.

Referring to Figs. 26 and 27, the touch window 120 includes a first region 1C and a second region 2C. At this time, a tangent line L2 in contact with the first region 1C and the second region 2C may be defined.

Some of the first sub patterns 251 and 253 may be offset from each other. Specifically, the first sub-pattern 251 arranged in the first region 1C and the first sub-pattern 253 arranged in the second region 2C can be displaced from each other at the tangent line L2 have.

The features, structures, effects and the like described in the foregoing embodiments are included in at least one embodiment of the present invention and are not necessarily limited to one embodiment. Further, the features, structures, effects, and the like illustrated in the embodiments may be combined or modified in other embodiments by those skilled in the art to which the embodiments belong. Therefore, it should be understood that the present invention is not limited to these combinations and modifications.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is clearly understood that the same is by way of illustration and example only and is not to be construed as limiting the scope of the present invention. It can be seen that various modifications and applications are possible. For example, each component specifically shown in the embodiments may be modified and implemented. It is to be understood that the present invention may be embodied in many other specific forms without departing from the spirit or essential characteristics thereof.

Claims (12)

A substrate comprising a first region and a second region;
A first pattern disposed in each of the first region and the second region and extending in one direction; And
And a second pattern disposed on the substrate. The method according to claim 1,
Wherein the line width of the first pattern is thinner than the line width of the second pattern. The method according to claim 1,
And an alignment pattern disposed in each of the first region and the second region. The method according to claim 1,
Wherein the first pattern and the second pattern are intaglio shapes. The method according to claim 1,
Wherein the first region and the second region are spaced apart. The method according to claim 1,
And a third region disposed apart from the first region and the second region, the third region including a first pattern and a second pattern. The method according to claim 1,
Wherein the substrate has an area of 30 cm X 30 cm to 100 cm X 100 cm. The method according to claim 1,
Wherein the first region and the second region contact each other. The method according to claim 1,
Wherein the first pattern disposed in the first region and the first pattern disposed in the second region are staggered from each other. 10. The method of claim 9,
Wherein the unit second pattern is disposed over the first region and the second region. Board;
A first sub-pattern disposed on the substrate;
A second subpattern disposed adjacent to the first subpattern; And
And an electrode layer disposed in the second sub-pattern,
Wherein a portion of the first subpattern is staggered. Touch window; And
And a driver disposed on the touch window,
The touch window includes:
A first sub-pattern disposed on the substrate;
A second subpattern disposed adjacent to the first subpattern; And
And an electrode layer disposed in the second sub-pattern,
Wherein a portion of the first subpattern is staggered with respect to each other.
KR20130124248A 2013-10-17 2013-10-17 Mold and touch window manufactured using the same KR20150044773A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11610872B2 (en) 2020-10-16 2023-03-21 Samsung Electronics Co., Ltd. Micro light emitting device array and method of manufacturing the same

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11610872B2 (en) 2020-10-16 2023-03-21 Samsung Electronics Co., Ltd. Micro light emitting device array and method of manufacturing the same

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