KR102251876B1 - Touch window - Google Patents

Abstract

The touch window according to the first embodiment includes: a substrate; And an electrode disposed on the substrate, the electrode comprising: a first mesh line extending in a first direction and having a first width; A second mesh line extending in a direction different from the first direction and having a second width; And an intersection region where the first mesh line and the second mesh line intersect and have a third width, and the third width satisfies the following equation.
[Equation]
1st width <3rd width <2 * 1st width
The touch window according to the second embodiment includes: a substrate; And an electrode disposed on the substrate, wherein the electrode includes: a first mesh line extending in a first direction; And a second mesh line extending in a second direction different from the first direction and intersecting the first mesh line, wherein an angle of intersection between the first mesh line and the second mesh line is 60° to 120° to be.

Description

Touch window {TOUCH WINDOW}

The embodiment relates to a touch window.

Recently, in various electronic products, a touch window for inputting an image displayed on a display device by contacting an input device such as a finger or a stylus is applied.

For example, the touch window may detect a change in capacitance, etc. when a sensing electrode and a wiring electrode connected to the sensing electrode are disposed on a substrate and a region in which the sensing electrode is disposed is touched to detect a position. .

A metal material may be used as the material of the sensing electrode. Since such a metal material is not a transparent material, a sensing electrode may be formed by crossing a plurality of mesh lines having a fine line width.

At this time, depending on the difference between the crossing area of the mesh lines and the width or area of the mesh line, the difference may be visually recognized from the outside, resulting in a decrease in visibility, or due to the difference in the sheet resistance value, the touch efficiency decreases. There is this.

Accordingly, there is a need for a touch window having a new structure capable of solving the above problems.

The embodiment is to provide a touch window having improved reliability.

The touch window according to the first embodiment includes: a substrate; And an electrode disposed on the substrate, the electrode comprising: a first mesh line extending in a first direction and having a first width; A second mesh line extending in a direction different from the first direction and having a second width; And an intersection region where the first mesh line and the second mesh line intersect and have a third width, and the third width satisfies the following equation.

[Equation]

1st width <3rd width <2 * 1st width

The touch window according to the second embodiment includes: a substrate; And an electrode disposed on the substrate, wherein the electrode includes: a first mesh line extending in a first direction; And a second mesh line extending in a second direction different from the first direction and intersecting the first mesh line, wherein an angle of intersection between the first mesh line and the second mesh line is 60° to 120° to be.

The touch window according to the embodiment may control a width of intersecting mesh lines and a size of an intersecting area of the mesh lines.

In detail, by controlling the width of the mesh lines and the width of the crossing region at a constant size ratio, it is possible to prevent a decrease in visibility due to a difference between the width of the mesh lines and the width of the crossing region or decrease in efficiency due to non-uniform resistance.

In addition, by forming the shape of the mesh lines to be narrower as the shape of the mesh lines extends in the direction of the intersection area, it is possible to prevent the width of the intersection area from being excessively increased compared to the width of the mesh lines.

In addition, by controlling the intersection angle of the mesh lines to a certain range, it is possible to prevent the width of the intersection area from being excessively increased compared to the width of the mesh lines.

Accordingly, the touch window according to the embodiment may have improved reliability, visibility, and touch efficiency.

1 is a diagram illustrating a plan view of a touch window according to an embodiment.
FIG. 2 is an enlarged view of area A of FIG. 1.
3 to 5 are views showing an enlarged area B of FIG. 2.
FIG. 6 is an enlarged view of area C of FIG. 1.
FIG. 7 is an enlarged view of area D of FIG. 1.
8 to 15 are diagrams illustrating cross-sections of touch windows according to various types.
16 to 19 are diagrams illustrating a touch device in which a touch window and a display panel are combined according to an exemplary embodiment.
20 to 23 are diagrams illustrating an example of a touch device apparatus to which a touch device according to an embodiment is applied.

In the description of the embodiments, each layer (film), region, pattern, or structure is “on” or “under/under” the substrate, each layer (film), region, pad, or patterns. The description that "is formed in" includes all that are formed directly or through another layer. The standards for the top/top or bottom/bottom of each layer will be described based on the drawings.

Further, when a part is said to be "connected" with another part, this includes not only a case in which it is "directly connected", but also a case in which it is "indirectly connected" with another member interposed therebetween. In addition, when a certain part "includes" a certain component, it means that other components may be further provided without excluding other components unless specifically stated to the contrary.

In the drawings, the thickness or size of each layer (film), region, pattern, or structure may be modified for clarity and convenience of description, and thus the actual size is not entirely reflected.

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

Referring to FIG. 1, a touch window according to an embodiment may include a substrate 100, a sensing electrode 200, and a wiring electrode 300.

The substrate 100 may be rigid or flexible. For example, the substrate 100 may include glass or plastic. In detail, the substrate 100 includes chemically strengthened/semi-tempered glass such as soda lime glass or aluminosilicate glass, or polyimide (PI), polyethylene terephthalate (PET). , Reinforced or flexible plastics such as propylene glycol (PPG) polycarbonate (PC), or sapphire may be included.

In addition, the substrate 100 may include a photoisotropic film. For example, the substrate 100 may include Cyclic Olefin Copolymer (COC), Cyclic Olefin Polymer (COP), photoisotropic polycarbonate (PC), or photoisotropic polymethylmethacrylate (PMMA).

Sapphire is a material that can be applied as a cover substrate due to its high surface strength and not only can dramatically increase the touch response speed due to its excellent electrical properties such as dielectric constant, but also can easily implement spatial touch such as hovering. Here, hovering refers to a technology that recognizes coordinates even at a distance from the display.

In addition, the substrate 100 may be bent while having a partially curved surface. That is, the substrate may be bent while partially having a flat surface and partially having a curved surface. In detail, the end of the substrate 100 may be bent while having a curved surface or a surface including a random curvature and may be bent or bent.

In addition, the substrate 100 may be a flexible substrate having flexible characteristics.

In addition, the substrate 100 may be a curved or bent substrate. That is, a touch window including the substrate may also be formed to have a flexible, curved or bent characteristic. For this reason, the touch window according to the embodiment is easy to carry, and may be changed into various designs.

A sensing electrode and a wiring electrode may be disposed on the substrate 100. That is, the substrate 100 may be a support substrate.

The substrate 100 may include a cover substrate. That is, the sensing electrode and the wiring electrode may be supported by the cover substrate. Alternatively, a separate cover substrate may be further disposed on the substrate 100. That is, the sensing electrode and the wiring electrode may be supported by a substrate, and the substrate 100 and the cover substrate may be laminated through an adhesive layer.

An effective area AA and a non-effective area UA may be defined on the substrate 100.

A display may be displayed in the effective area AA, and the display may not be displayed in the ineffective area UA disposed around the effective area AA.

In addition, the position of the input device (eg, a finger, etc.) may be sensed in at least one of the effective area AA and the non-effective area UA. When an input device such as a finger comes into contact with such a touch window, a difference in capacitance occurs at a portion where the input device is in contact, and a portion where the difference occurs may be detected as a contact position.

The sensing electrode 200 may be disposed on the substrate 100. For example, the sensing electrode 200 may be disposed on the effective area AA and the non-effective area UA of the substrate 100. Preferably, the sensing electrode 200 may be disposed on the effective area AA of the substrate 100.

The sensing electrode 200 may include a transparent conductive material to allow electricity to flow without interfering with the transmission of light. For example, the sensing electrode 200 may include indium tin oxide and indium zinc oxide. Metal oxides such as (indium zinc oxide), copper oxide, tin oxide, zinc oxide, and titanium oxide may be included.

Alternatively, the sensing electrode 200 may include a nanowire, a photosensitive nanowire film, a carbon nanotube (CNT), graphene, a conductive polymer, or a mixture thereof.

Alternatively, the sensing electrode 200 may include various metals. For example, the sensing electrode 200 is chromium (Cr), nickel (Ni), copper (Cu), aluminum (Al), silver (Ag), molybdenum (Mo). It may include at least one metal of gold (Au), titanium (Ti), and alloys thereof.

The sensing electrode 200 may have a mesh shape. For example, the sensing electrode 200 may include a plurality of mesh lines, and may include a mesh electrode disposed while the mesh lines cross each other in a mesh shape.

Referring to FIG. 2, the sensing electrode 200 may include a mesh line. In detail, the sensing electrode 200 may include a mesh line including a first mesh line 201 and a second mesh line 202. For example, the sensing electrode 200 extends in a first direction, a first mesh line 201 having a size of a first width W1 and a first mesh line 201 extending in a direction different from the first direction, and a second width A second mesh line 202 having a size of (W2) may be included.

The first mesh line 201 and the second mesh line 202 may be disposed to cross each other. In addition, the first mesh line 201 and the second mesh line 202 may include a plurality of mesh lines. Accordingly, the plurality of first mesh lines 201 and the plurality of second mesh lines 202 ) Are arranged to cross each other, the sensing electrode 200 may be formed in a mesh shape as a whole by the first mesh line 201 and the second mesh line 202.

As the first mesh line 201 and the second mesh line 202 intersect each other and are disposed, an intersection area CA may be formed in the mesh line. For example, the mesh line may include an intersection area CA having a size of a third width W3 and the first mesh line 201 and the second mesh line 202 crossing each other.

The sizes of the first width W1, the second width W2, and the third width W3 may be the same, similar, or different from each other. For example, the sizes of the first width W1 and the second width W2 may correspond to each other. That is, the sizes of the first width W1 and the second width W2 may be the same or similar to each other. For example, the sizes of the first width W1, the second width W2, and the third width W3 may be the same, similar, or different in a range of about 0.1 μm to about 10 μm.

Also, the size of the third width W3 may be larger than the size of at least one of the first width W1 and the second width W2.

In addition, the first width W1, the second width W2, and the third width W3 may be formed at a constant size ratio.

For example, the first width W1 and the third width W3 may have a size ratio as shown in Equation 1 below.

[Equation 1]

1st width <3rd width <2 * 1st width

That is, the size of the third width W3 may be greater than the size of the first width W1 and less than twice the size of the first width W1.

In addition, the sizes of the second width W2 and the third width W3 may have a size ratio as shown in Equation 2 below.

[Equation 2]

2nd width <3rd width <2 * 2nd width

That is, the size of the third width W3 may be greater than the size of the second width W2 and less than twice the size of the second width W2.

When the width of the crossing area is larger than twice the width of the first mesh line or the second mesh line, the crossing area may be visually recognized from the outside, so that visibility of the touch window may be deteriorated. In addition, when the width of the crossing area is less than the width of the first mesh line or the second mesh line, cracks may occur in the crossing area by ESD, and thus visibility of the touch window may be deteriorated.

3 to 5, the width of the mesh line may decrease as the mesh line extends in the direction of the intersection area.

For example, referring to FIG. 3, at least one of the first mesh line 201 and the second mesh line 202 extends in the crossing area CA direction, the narrower the width of the mesh line. I can. In detail, referring to FIG. 3, at least one of the first mesh line 201 and the second mesh line 202 may have a narrow width at one end in the direction of the crossing area CA. That is, the width of at least one of the first mesh line 201 and the second mesh line 202 may be narrowed at one end so that the planar area or cross-sectional area of the crossing area CA is reduced.

Referring to FIG. 4, at least one of the first mesh line 201 and the second mesh line 202 may have a narrow width at one end in the direction of the crossing area CA. For example, at least one of the first mesh line 201 and the second mesh line 202 may have a curved surface at one end in the direction of the crossing area CA and may have a narrow width. That is, at least one of the first mesh line 201 and the second mesh line 202 may have a curved surface at one end and narrow in width so that the planar area or cross-sectional area of the crossing area CA is reduced. have.

Referring to FIG. 5, at least one of the first mesh line 201 and the second mesh line 202 may have a narrow width at one end in the direction of the crossing area CA. For example, at least one of the first mesh line 201 and the second mesh line 202 may have an angle at one end in the direction of the crossing area CA and may have a narrow width. That is, at least one of the first mesh line 201 and the second mesh line 202 has an angle at one end so that the planar area or cross-sectional area of the crossing area CA is reduced, and the width is narrowed, Accordingly, one end of at least one of the first mesh line 201 and the second mesh line 202 may have a triangular shape.

As shown in FIGS. 3 to 5, at least one of the first mesh line 201 and the second mesh line 202 is arranged to have a narrower width as it extends in the direction of the intersection area CA. The plan area or cross-sectional area of the area CA may be reduced. The crossing area CA is an area where the first mesh line and the second mesh line overlap, and when the first mesh line and the second meridian line are formed, the width of the crossing area is compared to the mesh lines in width, area, etc. Can grow. Accordingly, the sheet resistance of the intersecting region and the mesh line becomes non-uniform, so that the overall efficiency may be lowered.

Accordingly, by arranging the widths of the mesh lines to become narrower as they extend in the direction of the crossing region, when the first mesh line and the second mesh line are arranged, it is possible to offset the width of the crossing region being larger than that of the mesh lines.

Accordingly, the surface resistance of the first mesh line, the second mesh line, and the crossing region is uniform to improve the efficiency of the touch window.

Referring to FIG. 6, an angle formed between the mesh lines and the intersection area may be formed in an angular range of a predetermined size.

For example, the first mesh line 201 and the second mesh line 202 disposed to cross each other may be disposed at a predetermined angle in the intersection area CA. In detail, the intersection angle θ of the first mesh line 201 and the second mesh line 202 may be about 60° to about 120°.

6, intersection angles θ of the first mesh line 201 and the second mesh line 202, that is, 4 intersecting the first mesh line 201 and the second mesh line 201 The crossing angle of the dog regions may be from about 60° to about 120°.

Accordingly, the four intersection angles θ of the first mesh line 201 and the second mesh line 202 may be formed with at least two obtuse angles and at least two acute angles.

When the intersecting angles θ between the first mesh line 201 and the second mesh line 202 are less than about 60° or exceeding about 120°, the first mesh line and the second mesh The width of the crossing region where the lines overlap is larger than the widths of the first mesh line and/or the second mesh line, and accordingly, sheet resistance may become non-uniform and visibility may decrease.

Referring to FIG. 7, at least one of the first mesh line 201 and the second mesh line 202 may include a straight line or a curved line.

For example, a plurality of first mesh lines 201 extending and arranged in a first direction are arranged to include a curved line and/or a straight line, and a plurality of second mesh lines extending and arranged in a direction different from the first direction Lines 202 may include and be arranged curved and/or straight lines.

The first mesh line 201 may include a first sub-first mesh line 201a and a second sub-first mesh line 201b. For example, the first mesh line 201 includes the first sub-first mesh line 201a and the second sub-first mesh line 201b that are spaced apart by a first separation distance D1. can do,

In addition, the second mesh line 202 may include a first sub second mesh line 202a and a second sub second mesh line 202b. For example, the second mesh line 202 includes the first sub-second mesh line 202a and the second sub-second mesh line 202b that are spaced apart by a second separation distance D2. can do,

At least one of the first sub-first mesh line 201a and the second sub-first mesh line 201b may include a straight line or a curved line. In addition, the first separation distance D1 between the first sub-first mesh line 201a and the second sub-first mesh line 201b may vary while extending in the first direction.

In addition, at least one of the first sub-second mesh line 202a and the second sub-second mesh line 202b may include a straight line or a curved line. In addition, the second separation distance D2 between the first sub-second mesh line 202a and the second sub-second mesh line 202b may vary while extending in the second direction.

For example, the first separation distance D1 may increase while extending in the first direction, and the second separation distance D2 may increase while extending in the second direction. Alternatively, the first separation distance D1 may increase while extending in the first direction, and the second separation distance D2 may decrease while extending in the second direction. Alternatively, the first separation distance D1 may decrease while extending in the first direction, and the second separation distance D2 may increase while extending in the second direction. Alternatively, the first separation distance D1 may decrease while extending in the first direction, and the second separation distance D2 may decrease while extending in the second direction.

Alternatively, the first separation distance D1 may change randomly while extending in the first direction, and the second separation distance D2 may also change randomly while extending in the second direction.

The sensing electrode 200 includes the first mesh line 201 and the second mesh line 202 intersecting each other, and accordingly, a region in which a mesh line is not disposed on the substrate, that is, an opening OA Can be formed.

The opening OA may be formed in various shapes. For example, the mesh opening OA may have various shapes such as a square, diamond, pentagon, hexagonal polygonal shape or circular shape.

The opening OA may have a random shape. For example, as the first separation distance D1 and the second separation distance D2 vary while extending in the first direction and the second direction, respectively, the opening OA formed by the mesh lines The shape of may also be formed in different shapes by a difference between the first separation distance D1 and the second separation distance D2.

That is, the mesh line including the first mesh line and the second mesh line may be randomly extended while including a curved line or a straight line, and the opening formed by the first mesh line and the second mesh line is also Each can be formed in a random shape.

According to the extension of the random mesh line and the shape of the opening, it is possible to control so that the width of the mesh line and the intersection area where the mesh lines intersect are uniform. Therefore, it is possible to prevent a decrease in efficiency and a decrease in visibility due to a difference in non-uniform width.

The wiring electrode 300 may be disposed on the substrate 100. For example, the wiring electrode 300 may be disposed on at least one of the effective area and the non-effective area UA of the substrate 100.

In addition, the wiring electrode 300 may be connected to and disposed with the sensing electrode 200. For example, one end of the wiring electrode 300 is connected to the sensing electrode 200, and the other end is connected to and disposed with a printed circuit board (not shown in the drawing) disposed on the ineffective area UA. I can.

Accordingly, the touch signal sensed by the sensing electrode is transmitted to the printed circuit board on which the driving chip is mounted through the wiring electrode, and transmitted to the main board chip through the driving chip to perform a touch operation.

Although not shown in the drawing, a printing layer may be further disposed on the non-effective area UA of the substrate 100. In addition, the wiring electrode 300 may be disposed on the printed layer.

The printed layer may be formed by coating a material having a predetermined color so that the wiring electrode disposed on the ineffective area and a printed circuit board connecting the wiring electrode to an external circuit are not visible from the outside.

The printing layer may have a color suitable for a desired appearance, for example, may exhibit black or white, including black or white pigment. Alternatively, various color films such as red and blue may be expressed by using various color films.

In addition, a desired logo or the like may be formed on the printing layer in various ways. Such a printed layer may be formed by vapor deposition, printing, wet coating, or the like.

The printing layer may be disposed in at least one layer. For example, the outer dummy layer may be disposed as one layer or may be disposed as at least two layers having different widths.

The wiring electrode 300 may include a conductive material. For example, the wiring electrode 300 may include the same material as the sensing electrode 200 described above.

In addition, the wiring electrode 300 may be formed in a mesh shape by a plurality of mesh lines crossing each other. Since the mesh lines of the wiring electrode 300 are the same as or similar to the mesh lines of the sensing electrode described above, the following description will be omitted.

Hereinafter, a touch window according to various embodiments according to an arrangement position of an electrode will be described with reference to FIGS. 8 to 12.

Referring to FIG. 8, the touch window according to the embodiment may include a cover substrate 110 and a substrate 100.

The cover substrate 110 may be disposed on the substrate 100. The cover substrate 110 may include the same or similar material to the substrate 100 described above.

The cover substrate 110 and the substrate 100 may be laminated. For example, as an example of a transparent adhesive layer between the cover substrate 110 and the substrate 100, an optical transparent adhesive (OCA) or the like is disposed, and the cover substrate 110 and the substrate 100 are laminated. I can.

A sensing electrode may be disposed on the substrate 100. For example, a first sensing electrode 210 and a second sensing electrode 220 extending in different directions may be disposed on the effective area of the substrate 100. The first sensing electrode 210 and the second sensing electrode 220 may be directly disposed on the substrate 100 or may be disposed on the resin layer after the resin layer is disposed on the substrate 100. have.

In detail, the first sensing electrode 210 extending in one direction is disposed on one surface of the substrate 100 and extending in a direction different from the first sensing electrode 210, that is, in a direction different from the first sensing electrode 210. 2 The sensing electrode 220 may be disposed on the other surface opposite to the one surface of the substrate 100.

In addition, a wiring electrode connected to the first sensing electrode 210 and the second sensing electrode 220 may be disposed on the ineffective region of the substrate 100.

The first sensing electrode 210, the second sensing electrode 220, and the wiring electrode may include a plurality of mesh lines disposed to cross each other. Since the mesh lines are the same as or similar to the description of the mesh lines described above, the following description will be omitted.

9 and 10, the touch window according to the embodiment may include a cover substrate 110.

The cover substrate 110 may include the same or similar material to the substrate 100 described above.

A sensing electrode may be disposed on the cover substrate 110. For example, a first sensing electrode 210 and a second sensing electrode 220 extending in different directions may be disposed on the effective area of the cover substrate 110. The first sensing electrode 210 and the second sensing electrode 220 are directly disposed on the cover substrate 110 or a resin layer is disposed on the cover substrate 110 and then disposed on the resin layer. can do.

In detail, the first sensing electrode 210 extending in one direction is disposed on one surface of the cover substrate 110, and extends in a direction different from the first sensing electrode 210, that is, in a direction different from one direction. The second sensing electrode 220 may be disposed on one surface of the cover substrate 110. That is, the first sensing electrode 210 and the second sensing electrode 220 may be disposed on the same surface of the cover substrate.

For example, referring to FIG. 9, a first sensing electrode 210 extending in one direction and a second unit sensing electrode 220a and 220b spaced apart from each other are disposed on the cover substrate 110, and An insulating layer 250 may be disposed on the first sensing electrode 210 and the second unit sensing electrodes 220a and 220b. In this case, the insulating layer 250 is partially disposed on the second unit sensing electrodes 220a and 220b, or by forming a hole on the insulating layer 250 to form the second unit sensing electrodes 220a and 220b. Can be placed while exposing.

Subsequently, a bridge electrode 230 is disposed on the insulating layer 250 to connect the exposed surfaces of the second unit sensing electrodes 220a and 220b to connect the second unit sensing electrodes 220a and 220b to the second unit sensing electrodes 220a and 220b. It can be connected in one direction and another.

Alternatively, referring to FIG. 10, a plurality of bridge electrodes 230 spaced apart from each other may be disposed on the cover substrate 110, and an insulating layer 250 may be disposed on the bridge electrode 230. At this time, the insulating layer 250 is disposed while surrounding the bridge electrode 230, forming a hole, or partially enclosing the bridge electrode 230, thereby being disposed while exposing the bridge electrode 230. I can.

Subsequently, the first sensing electrode 210 and the second unit sensing electrodes 220a and 220b may be disposed on the insulating layer 250. For example, the first sensing electrode 210 may be disposed on the insulating layer 250, and the second unit sensing electrodes 220a and 220b may be disposed in contact with the exposed bridge electrode 230. . Accordingly, the first sensing electrode 210 may be extended and disposed in one direction, and the second sensing electrode 220 may be connected and disposed in a direction different from the one direction.

In addition, a wiring electrode connected to the first sensing electrode 210 and the second sensing electrode 220 may be disposed on the ineffective region of the cover substrate 110.

The first sensing electrode 210, the second sensing electrode 220, and the wiring electrode may include a plurality of mesh lines disposed to cross each other. Since the mesh lines are the same as or similar to the description of the mesh lines described above, the following description will be omitted.

11 and 12, the touch window according to the embodiment may include a cover substrate 110 and a substrate 100.

The cover substrate 110 may be disposed on the substrate 100. The cover substrate 110 may include the same or similar material to the substrate 100 described above.

The cover substrate 110 and the substrate 100 may be laminated. For example, as an example of a transparent adhesive layer between the cover substrate 110 and the substrate 100, an optical transparent adhesive (OCA) or the like is disposed, and the cover substrate 110 and the substrate 100 are laminated. I can.

A sensing electrode may be disposed on the substrate 100. For example, a first sensing electrode 210 and a second sensing electrode 220 extending in different directions may be disposed on the effective area of the substrate 100. The first sensing electrode 210 and the second sensing electrode 220 may be directly disposed on the substrate 100 or may be disposed on the resin layer after the resin layer is disposed on the substrate 100. have.

In detail, the first sensing electrode 210 extending in one direction is disposed on one surface of the substrate 100 and extending in a direction different from the first sensing electrode 210, that is, in a direction different from the first sensing electrode 210. 2 The sensing electrode 220 may be disposed on one surface of the substrate 100. That is, the first sensing electrode 210 and the second sensing electrode 220 may be disposed on the same surface of the substrate.

Since the arrangement of the first sensing electrode 210 and the second sensing electrode 220 is the same as or similar to those of FIGS. 9 and 10 described above, the following description will be omitted.

In addition, a wiring electrode connected to the first sensing electrode 210 and the second sensing electrode 220 may be disposed on the ineffective region of the substrate 100.

The first sensing electrode 210, the second sensing electrode 220, and the wiring electrode may include a plurality of mesh lines disposed to cross each other. Since the mesh lines are the same as or similar to the description of the mesh lines described above, the following description will be omitted.

Referring to FIG. 13, the touch window according to the embodiment may include a cover substrate 110 and a substrate 100.

The cover substrate 110 may be disposed on the substrate 100. The cover substrate 110 may include the same or similar material to the substrate 100 described above.

The cover substrate 110 and the substrate 100 may be laminated. For example, as an example of a transparent adhesive layer between the cover substrate 110 and the substrate 100, an optical transparent adhesive (OCA) or the like is disposed, and the cover substrate 110 and the substrate 100 are laminated. I can.

A sensing electrode may be disposed on the cover substrate 110 and the substrate 100. For example, the first sensing electrode 210 may be disposed on the effective area of the cover substrate 110, and the second sensing electrode 220 may be disposed on the effective area of the substrate 100. The first sensing electrode 210 and the second sensing electrode 220 are directly disposed on the cover substrate 110 and the substrate 100, or on the cover substrate 110 and the substrate 100. After the resin layer is disposed, it may be disposed on the resin layer.

In detail, the first sensing electrode 210 extending in one direction is disposed on one surface of the cover substrate 110, and extends in a direction different from the first sensing electrode 210, that is, in a direction different from one direction. The second sensing electrode 220 may be disposed on one surface of the substrate 100.

In addition, wiring electrodes connected to the first sensing electrode 210 and the second sensing electrode 220 may be disposed on the cover substrate 110 and the non-effective region of the substrate 100.

The first sensing electrode 210, the second sensing electrode 220, and the wiring electrode may include a plurality of mesh lines disposed to cross each other. Since the mesh lines are the same as or similar to the description of the mesh lines described above, the following description will be omitted.

Referring to FIG. 14, the touch window according to the embodiment may include a cover substrate 110, a first substrate 101, and a second substrate 102.

The cover substrate 110 may be disposed on the first substrate 101. In addition, the first substrate 101 may be disposed on the second substrate 102. That is, the cover substrate 110, the first substrate 101, and the second substrate 102 may be arranged in order.

The cover substrate 110 may include the same or similar material to the substrate 100 described above.

The cover substrate 110, the first substrate 101, and the second substrate 102 may be laminated. For example, as an example of a transparent adhesive layer between the cover substrate 110 and the first substrate 101 and between the first substrate 101 and the second substrate 102, an optically transparent adhesive (OCA) ) And the like, and the first substrate 101 and the second substrate 102 may be laminated.

A sensing electrode may be disposed on the first substrate 101 and the second substrate 102. For example, the first sensing electrode 210 may be disposed on the effective area of the first substrate 101, and the second sensing electrode 220 may be disposed on the effective area of the second substrate 102.

In detail, the first sensing electrode 210 extending in one direction is disposed on one surface of the first substrate 101 and extends in a direction different from the first sensing electrode 210, that is, in a direction different from one direction. The second sensing electrode 220 may be disposed on one surface of the second substrate 102. The first sensing electrode 210 and the second sensing electrode 220 may be directly disposed on the first substrate 101 and the second substrate 102, or the first substrate 101 and the second After the resin layer is disposed on the substrate 102, it may be disposed on the resin layer.

In addition, wiring electrodes connected to the first sensing electrode 210 and the second sensing electrode 220 may be disposed on the ineffective regions of the first substrate 101 and the second substrate 102, respectively.

The first sensing electrode 210, the second sensing electrode 220, and the wiring electrode may include a plurality of mesh lines disposed to cross each other. Since the mesh lines are the same as or similar to the description of the mesh lines described above, the following description will be omitted.

Referring to FIG. 15, the touch window according to the embodiment may include a cover substrate 110 and a substrate 100.

The cover substrate 110 may be disposed on the substrate 100. The cover substrate 110 may include the same or similar material to the substrate 100 described above.

The cover substrate 110 and the substrate 100 may be laminated. For example, as an example of a transparent adhesive layer between the cover substrate 110 and the substrate 100, an optical transparent adhesive (OCA) or the like is disposed, and the cover substrate 110 and the substrate 100 are laminated. I can.

A sensing electrode may be disposed on the substrate 100. For example, a first sensing electrode 210 and a second sensing electrode 220 extending in different directions may be disposed on the effective area of the substrate 100. The first sensing electrode 210 and the second sensing electrode 220 may be directly disposed on the substrate 100 or may be disposed on the resin layer after the resin layer is disposed on the substrate 100. have.

In detail, the first sensing electrode 210 extending in one direction is disposed on one surface of the substrate 100 and extending in a direction different from the first sensing electrode 210, that is, in a direction different from the first sensing electrode 210. 2 The sensing electrode 220 may be disposed on one surface of the substrate 100. That is, the first sensing electrode 210 and the second sensing electrode 220 may be disposed on the same surface of the substrate 100.

The first sensing electrode 210 and the second sensing electrode 220 may be disposed on the substrate 100 to be spaced apart from each other. Accordingly, as shown in FIGS. 9 and 11 described above, separate insulating layers and bridge electrodes are not disposed, and only sensing electrodes may be disposed on the substrate.

In addition, wiring electrodes connected to the first sensing electrode 210 and the second sensing electrode 220 may be disposed on the ineffective region of the substrate 100.

The first sensing electrode 210, the second sensing electrode 220, and the wiring electrode may include a plurality of mesh lines disposed to cross each other. Since the mesh lines are the same as or similar to the description of the mesh lines described above, the following description will be omitted.

Hereinafter, a touch device in which the touch window and the display panel described above are combined will be described with reference to FIGS. 16 to 19.

16 and 17, the touch device according to the embodiment may include a touch window disposed on the display panel 500.

In detail, referring to FIG. 16, the touch device may be formed by combining the cover substrate 110 and the display panel 500. The cover substrate 110 and the display panel 500 may be adhered to each other through an adhesive layer 600. For example, the cover substrate 110 and the display panel 500 may be laminated to each other through an adhesive layer 600 including an optically transparent adhesive (OCA).

Alternatively, referring to FIG. 17, when the substrate 100 is further disposed on the cover substrate 110, the touch device may be formed by combining the substrate 100 and the display panel 500. The substrate 100 and the display panel 500 may be adhered to each other through an adhesive layer 600. For example, the substrate 100 and the display panel 500 may be laminated to each other through an adhesive layer 600 including an optically transparent adhesive (OCA).

The display panel 500 may include a first' substrate 510 and a second' substrate 520.

When the display panel 500 is a liquid crystal display panel, the display panel 500 includes a first' substrate 510 including a thin film transistor (TFT) and a pixel electrode, and a second including color filter layers. 'The substrate 520 may be formed in a structure in which a liquid crystal layer is interposed therebetween.

In addition, in the display panel 500, a thin film transistor, a color filter, and a black matrix are formed on the first' substrate 510, and the second' substrate 520 is the first' substrate 510 with a liquid crystal layer interposed therebetween. ) May be a liquid crystal display panel having a color filter on transistor (COT) structure bonded to each other. That is, a thin film transistor may be formed on the first ′ substrate 510, a protective layer may be formed on the thin film transistor, and a color filter layer may be formed on the protective layer. Further, a pixel electrode in contact with the thin film transistor is formed on the first' substrate 510. In this case, in order to improve the aperture ratio and simplify the mask process, the black matrix may be omitted, and the common electrode may be formed to serve as the black matrix.

In addition, when the display panel 500 is a liquid crystal display panel, the display device may further include a backlight unit that provides light from a rear surface of the display panel 500.

When the display panel 500 is an organic light emitting display panel, the display panel 500 includes a self-luminous device that does not require a separate light source. In the display panel 500, a thin film transistor is formed on a first' substrate 510, and an organic light emitting device in contact with the thin film transistor is formed. The organic light-emitting device may include an anode, a cathode, and an organic light-emitting layer formed between the anode and the cathode. In addition, a second substrate 620 serving as an encapsulation substrate for encapsulation on the organic light emitting device may be further included.

Referring to FIG. 18, the touch device according to the embodiment may include a touch panel integrally formed with the display panel 600. That is, a substrate supporting at least one sensing electrode may be omitted.

In detail, at least one sensing electrode may be disposed on at least one surface of the display panel 500. That is, at least one sensing electrode may be formed on at least one surface of the first' substrate 510 or the second' substrate 520.

In this case, at least one sensing electrode may be formed on the upper surface of the substrate disposed thereon.

Referring to FIG. 18, a first sensing electrode 210 may be disposed on one surface of the cover substrate 110. In addition, a first wiring connected to the first sensing electrode 210 may be disposed. Also, a second sensing electrode 220 may be disposed on one surface of the display panel 500. In addition, a second wire connected to the second sensing electrode 220 may be disposed.

An adhesive layer 600 is disposed between the cover substrate 110 and the display panel 500, so that the cover substrate and the display panel 500 may be laminated to each other.

In addition, a polarizing plate may be further included under the cover substrate 110. The polarizing plate may be a linear polarizing plate or an anti-reflection polarizing plate. For example, when the display panel 500 is a liquid crystal display panel, the polarizing plate may be a linear polarizing plate. In addition, when the display panel 500 is an organic light emitting display panel, the polarizing plate may be a polarizing plate for preventing reflection of external light.

In the touch device according to the embodiment, at least one substrate supporting the sensing electrode may be omitted. For this reason, it is possible to form a thin and light touch device.

Next, a touch device according to another exemplary embodiment will be described with reference to FIG. 19. A description overlapping with the above-described embodiments may be omitted. The same reference numerals are assigned to the same configuration.

Referring to FIG. 19, the touch device according to the embodiment may include a touch panel integrally formed with the display panel 500. That is, a substrate supporting at least one sensing electrode may be omitted.

For example, a sensing electrode disposed in an effective area to serve as a sensor for sensing a touch, and a wire for applying an electrical signal to the sensing electrode may be formed inside the display panel. In detail, at least one sensing electrode or at least one wire may be formed inside the display panel.

The display panel includes a first' substrate 510 and a second' substrate 520. At this time, at least one of the first sensing electrode 210 and the second sensing electrode 220 is disposed between the first' substrate 510 and the second' substrate 520. That is, at least one sensing electrode may be disposed on at least one surface of the first' substrate 510 or the second' substrate 520.

Referring to FIG. 19, a first sensing electrode 210 may be disposed on one surface of the cover substrate 110. In addition, a first wiring connected to the first sensing electrode 210 may be disposed. In addition, a second sensing electrode 220 and a second wiring may be formed between the first' substrate 510 and the second' substrate 520. That is, the second sensing electrode 220 and the second wiring may be disposed inside the display panel, and the first sensing electrode 210 and the first wiring may be disposed outside the display panel.

The second sensing electrode 220 and the second wiring may be disposed on an upper surface of the first' substrate 510 or a rear surface of the second' substrate 520.

In addition, a polarizing plate may be further included under the cover substrate 110.

When the display panel is a liquid crystal display panel, when the second sensing electrode is formed on the upper surface of the first substrate 610, the sensing electrode may be formed together with a thin film transistor (TFT) or a pixel electrode. . In addition, when the second sensing electrode is formed on the rear surface of the second' substrate 520, a color filter layer may be formed on the sensing electrode or a sensing electrode may be formed on the color filter layer. When the display panel is an organic light emitting display panel, when the second sensing electrode is formed on the upper surface of the first'substrate 510, the second sensing electrode may be formed together with a thin film transistor or an organic light emitting device. .

In the touch device according to the embodiment, at least one substrate supporting the sensing electrode may be omitted. For this reason, it is possible to form a thin and light touch device. In addition, it is possible to simplify a process and reduce cost by forming a sensing electrode and a wire together with an element formed on the display panel.

Hereinafter, an example of a display device to which a touch window according to the above-described embodiments is applied will be described with reference to FIGS. 20 to 23.

Referring to FIG. 20, as an example of a touch device device, a mobile terminal is shown. The mobile terminal may include an effective area AA and an invalid area UA. The effective area AA may sense a touch signal by a touch such as a finger, and a command icon pattern part and a logo may be formed in the ineffective area.

Referring to FIG. 21, the touch window may include a flexible touch window that is bent. Accordingly, the touch device device including the same may be a flexible touch device device. Thus, the user can bend or bend it by hand. Such a flexible touch window can be applied to a wearable touch or the like.

Referring to FIG. 22, such a touch window can be applied not only to touch device devices such as mobile terminals, but also to vehicle navigation.

In addition, referring to FIG. 23, such a touch window may be applied to a vehicle. That is, the touch window can be applied to various parts in the vehicle to which the touch window can be applied. Accordingly, it is applied not only to the PND (Personal Navigation Display), but also to an instrument panel (dashboard) to implement a CID (Center Information Display). However, the embodiment is not limited thereto, and of course, such a touch device device may be used in various electronic products.

Features, structures, effects, and the like described in the above-described embodiments are included in at least one embodiment of the present invention, and are not necessarily limited to only one embodiment. Furthermore, the features, structures, effects, and the like illustrated in each embodiment may be combined or modified for other embodiments by a person having ordinary knowledge in the field to which the embodiments belong. Therefore, contents related to such combinations and modifications should be construed as being included in the scope of the present invention.

In addition, although the embodiments have been described above, these are only examples and do not limit the present invention, and those of ordinary skill in the field to which the present invention pertains are illustrated above without departing from the essential characteristics of this embodiment. It will be seen that various modifications and applications that have not been made are possible. For example, each component specifically shown in the embodiments can be modified and implemented. And differences related to these modifications and applications should be construed as being included in the scope of the present invention defined in the appended claims.

Claims (10)

A substrate including an effective area and an inactive area; And
And a sensing electrode disposed on the effective area,
The sensing electrode comprises a metal,
The sensing electrode,
A first mesh line extending in a first direction and having a first width;
A second mesh line extending in a direction different from the first direction and having a second width; And
The first mesh line and the second mesh line intersect, have a third width, and include an intersection region defined as a region in which the metal is disposed,
The third width is a touch window that satisfies Equation 1 below.
[Equation 1]
1st width <minimum width of 3rd width <2 * 1st width The method of claim 1,
The size of the first width and the size of the second width correspond to each other. The method of claim 1,
The sensing electrode may include a first sensing electrode extending in one direction; And a second sensing electrode extending in a direction different from the one direction,
The first sensing electrode is disposed on one surface of the substrate,
The second sensing electrode is a touch window disposed on the other surface opposite to the one surface. The method of claim 1,
The sensing electrode may include a first sensing electrode extending in one direction; And a second sensing electrode extending in a direction different from the one direction,
The first sensing electrode and the second sensing electrode are disposed on the same surface of the substrate. The method of claim 1,
The intersection area includes a curved line. The method of claim 1,
The size of the first width and the second width is 0.1㎛ to 10㎛ touch window. The method of claim 1,
The third width is a touch window that satisfies Equation 2 below.
[Equation 2]
2nd width <minimum width of 3rd width <2 * 2nd width The method of claim 1,
The sensing electrode includes a plurality of openings formed by the first mesh line and the second mesh line,
The plurality of openings have different shapes. Display panel; And
A touch device comprising the touch window of any one of claims 1 to 8 disposed on the display panel. delete

Images