KR20210085571A - Touch Film And Touch Display Device Using The Same - Google Patents

Abstract

In a touch display device according to an embodiment of the present specification, provided is a touch film comprising: a touch sensor; a second insulating pattern disposed on an upper part of the touch sensor; a first insulating pattern disposed on a lower part of the touch sensor; a first transparent electrode pattern disposed between the touch sensor and the first insulating pattern; and a second transparent electrode pattern disposed between the touch sensor and the second insulating pattern. Therefore, a compensation speed can be improved by performing sensing and compensation for each N line using a gain according to a driving time and an offset according to a temperature, and a compensation performance can be improved and an image quality can be improved by adjusting an N value.

Description

Touch Film And Touch Display Device Using The Same

The present specification relates to a display device, and more particularly, to a touch display device in which a transparent electrode and an auxiliary electrode are patterned on the outside of a touch film.

In line with the information age, the display field has also developed rapidly, and in response to this, a liquid crystal display device (LCD) as a flat panel display device (FPD) with the advantages of thinness, light weight, and low power consumption. ), plasma display panel device (PDP), organic light emitting diode display device (OLED), field emission display device (FED), etc. It is rapidly replacing the cathode ray tube (CRT).

Recently, a touch display device (or a touch screen) in which a touch panel is attached to such a display panel has been in the spotlight.

The touch display device is used as an output means for displaying an image, and is used as an input means for receiving a user's command by touching a specific part of the displayed image. It can be divided into a decompression method, an electrostatic method, an infrared method, an ultrasonic method, and the like.

That is, when the user touches the touch panel while viewing the image displayed on the display panel, the touch panel detects location information of the corresponding part and compares the detected location information with location information of the image to recognize the user's command.

Such a touch display device may be manufactured in a form in which a separate touch panel is attached to the display panel or the touch panel is formed on a substrate of the display panel to be integrated.

Among these touch display devices, in an add-on type touch display device, a film-type touch panel is attached to the display panel to complete the touch display device.

The film-type touch panel forms an insulating pattern on the upper and lower parts of the touch sensor, and when the tip is the same as the touch sensor, defects may occur at the boundary during punching. In addition, when the adhesive force between the insulating pattern and the touch sensor is low, there may be defects such as foreign matter. In addition, since the touch sensor may be exposed at the outer portion of the touch panel, problems such as static electricity failure may occur.

In order to solve the above-mentioned problems, the present specification relates to a touch display device that improves adhesion by patterning a transparent electrode and an auxiliary electrode on the periphery of a touch film, and improves static electricity generation during touch.

A touch display device according to an embodiment of the present specification includes a touch sensor, a second insulating pattern disposed above the touch sensor, a first insulating pattern disposed below the touch sensor, and a first insulating pattern disposed between the touch sensor and the first insulating pattern. 1 It is possible to provide a touch film including a transparent electrode pattern and a second transparent electrode pattern disposed between the touch sensor and the second insulating pattern.

In addition, the touch display device according to the embodiment of the present specification includes a display panel for displaying an image, a touch panel attached to the display panel for sensing a touch, and a heat sink emitting heat generated from the display panel under the display panel. Including, the touch panel may be in the form of a film in which the first and second insulating patterns of the photosensitive organic insulating material are formed on the upper and lower portions of the touch sensor and the touch sensor.

In addition to the technical problems of the present specification mentioned above, other features and advantages of the present specification will be described below or will be clearly understood by those of ordinary skill in the art to which this specification belongs from the description and description.

According to the embodiments of the present specification, since the first and second insulating patterns are formed inwardly spaced apart from the touch sensor, the boundary portion may be neatly cut during punching.

In addition, by forming the first and second transparent electrode patterns at the ends of the first and second insulating patterns, adhesion to the touch sensor is increased, so that defects in the generation of foreign substances at the boundary are minimized, and yield and productivity can be improved.

In addition, by electrically connecting the first and second transparent electrode patterns of high resistance through the first and second auxiliary electrode patterns of low resistance, electrostatic characteristics may be further improved.

The effect according to the present invention is not limited by the contents exemplified above, and more various effects are included in the present invention.

1 is a diagram illustrating a touch display device according to embodiments of the present specification.
2 is a cross-sectional view illustrating a display panel and a touch panel of a touch display device according to an embodiment of the present specification.
3 is a plan view illustrating a touch film in a touch display device according to an embodiment of the present specification.
4 is a view of a cross-section I-I' in the touch display device according to the embodiment of the present specification.
5 is a view of a section II-II' in the touch display device according to the embodiment of the present specification.
6 is a view of a section III-III' in the touch display device according to the embodiment of the present specification.

Advantages and features of the present specification, and a method of achieving them will become apparent with reference to examples described below in detail in conjunction with the accompanying drawings. However, the present specification is not limited to the examples disclosed below, but will be implemented in various different forms, and only examples of the present specification allow the disclosure of the present specification to be complete, and it is common in the technical field to which the invention of the present specification belongs. It is provided to fully inform those with knowledge of the scope of the invention, and the invention of the present specification is only defined by the scope of the claims.

The shape, size, ratio, angle, number, etc. disclosed in the drawings for explaining an example of the present specification are exemplary and are not limited to the matters shown in the present specification. Like reference numerals refer to like elements throughout. In addition, in describing an example of the present specification, if it is determined that a detailed description of a related known technology may unnecessarily obscure the subject matter of the present specification, the detailed description thereof will be omitted.

When “includes,” “haves,” “consists of,” etc. mentioned in this specification are used, other parts may be added unless “only” is used. When a component is expressed in the singular, the case in which the plural is included is included unless otherwise explicitly stated.

In interpreting the components, it is interpreted as including an error range even if there is no separate explicit description.

In the case of a description of a positional relationship, for example, if the positional relationship of two parts is described as “on,” “on,” “under,” “next to,” etc., “directly” or “directly” One or more other parts may be placed between the two parts unless this is used.

In the case of a description of a temporal relationship, for example, when temporal precedence is described as “after,” “following,” “after,” “before”, etc., 'immediately' or 'directly' are not used. It may include a case where it is not more continuous.

Although the first, second, etc. are used to describe various elements, these elements are not limited by these terms. These terms are only used to distinguish one component from another. Accordingly, the first component mentioned below may be the second component within the spirit of the present specification.

The term “at least one” should be understood to include all possible combinations of one or more related items. For example, the meaning of “at least one of the first, second, and third items” means 2 of the first, second, and third items as well as each of the first, second, or third items. It may mean a combination of all items that can be presented from more than one.

Each feature of the various examples of the present specification may be partially or wholly combined or combined with each other, technically various interlocking and driving are possible, and each example may be implemented independently of each other or may be implemented together in a related relationship. .

Hereinafter, an example of a display device according to an embodiment of the present specification will be described in detail with reference to the accompanying drawings. In adding reference numerals to components of each drawing, the same components may have the same reference numerals as much as possible even though they are indicated in different drawings. And, since the scales of the components shown in the accompanying drawings have different scales from the actual for convenience of explanation, the scales shown in the drawings are not limited thereto.

1 is a diagram illustrating a touch display device according to embodiments of the present specification.

Referring to FIG. 1 , the touch display device 110 according to the embodiment of the present specification includes a display unit 120 and a touch unit 150 .

The display unit 120 includes a timing controller 122 , a data driver 124 , a gate driver 126 , and a display panel 128 , and an organic light emitting diode display device (OLED display device). Alternatively, it may be a liquid crystal display device (LCD device).

The timing controller 122 uses a plurality of timing signals, such as an image signal and a data enable signal, a horizontal synchronization signal, a vertical synchronization signal, and a clock, transmitted from an external system (not shown) such as a graphic card or a TV system to generate an image Data, a data control signal, and a gate control signal are generated, the generated image data and data control signal are transferred to the data driver 124 , and the generated gate control signal is transferred to the gate driver 126 .

The data driver 124 generates a data voltage (data signal) by using the data control signal and image data transmitted from the timing controller 122 , and applies the generated data voltage to the data line DL of the display panel 128 . accredit to

The gate driver 126 generates a gate voltage (gate signal) using the gate control signal transmitted from the timing controller 122 , and applies the generated gate voltage to the gate line GL of the display panel 128 . .

Here, the gate driver 126 is a gate-in-panel (GIP) formed together on the substrate of the display panel 128 on which the gate line GL, the data line DL, and the pixel P are formed. ) type.

The display panel 128 displays an image using a gate voltage and a data voltage, a gate line GL and a data line DL that cross each other to define a sub-pixel SP, a gate line GL, and and a sub-pixel SP connected to the data line DL.

When the display unit 120 is an organic light emitting diode display, the sub-pixel SP may include a switching thin film transistor, a driving thin film transistor, a storage capacitor, and a light emitting diode, and when the display unit 120 is a liquid crystal display, the sub-pixel ( SP) may include a thin film transistor, a storage capacitor, and a liquid crystal capacitor.

The touch unit 150 includes a touch driving unit 152 and a touch panel 154 , and a mutual capacitance type touch device will be described as an example.

The touch driving unit 152 transmits the touch driving voltage to the plurality of touch transmitting wirings TL of the touch panel 154 and receiving the touch sensing voltage from the plurality of touch receiving wirings RL of the touch panel 154, A touch position is calculated by analyzing the received touch sensing voltage.

The touch panel 154 includes a plurality of touch transmission wirings TL, a plurality of touch reception wirings RL, a plurality of first connection wirings 156 , a plurality of second connection wirings 158 , and a plurality of third connections. It includes a wiring 160 .

The plurality of touch transmission wirings TL may be spaced apart from each other in parallel, and the plurality of touch reception wirings RL may be spaced apart from each other in parallel.

The plurality of first connection wirings 156 are connected to one end of the plurality of touch receiving wirings RL in a single routing method, and the plurality of second connection wirings 158 and the plurality of third connection wirings ( 160 may be respectively connected to both ends of the plurality of touch transmission wirings TL in a double routing method.

The plurality of touch transmission wirings TL receive the touch driving voltage from the touch driving unit 152 through the plurality of second connection wirings 158 and the plurality of third connection wirings 160 , and the touch driving voltage is applied to the plurality of touches. It can be sequentially transmitted to the transmission line (TL).

The plurality of touch transmitting wirings TL and the plurality of touch receiving wirings RL intersect each other to form a plurality of mutual capacitances corresponding to the plurality of intersection points, and the plurality of mutual capacitances changes depending on whether the user touches them. .

The plurality of touch receiving wirings RL transmits a touch sensing voltage corresponding to a change in a plurality of mutual capacitances to the touch driving unit 152 through the plurality of first connection wirings 156 , and the touch sensing voltage is applied to the plurality of touches. It can be transmitted sequentially or simultaneously from the receiving wiring (RL).

In such a touch display device 110 , after manufacturing the display panel 128 and the touch panel 154 , the touch panel 154 is attached to the display panel 128 , and the timing controller 122 , the data driver 124 , The touch display device 110 may be completed by attaching the gate driver 126 to the display panel 128 and the touch driver 152 to the touch panel 154 .

A cross-sectional structure of such a touch display device 110 will be described with reference to FIG. 2 .

2 is a cross-sectional view illustrating a display panel and a touch panel of a touch display device according to an embodiment of the present specification.

FIG. 2 will be described with reference to FIG. 1 , but the organic light emitting diode display panel 128 will be described as an example.

Referring to FIG. 2 , the touch display device 110 according to the embodiment of the present specification includes a display panel 128 , a touch panel 154 , a cover glass 176174 , and a heat sink 144178 .

Specifically, the substrate 130 includes a pixel P made of red, green, and blue sub-pixels SPr, SPg, and SPb. For example, the substrate 130 is made of a flexible material such as polyimide. can be made with

An array layer 132 is disposed on the substrate 130, and the array layer 132 of each of the red, green, and blue sub-pixels SPr, SPg, and SPb includes a switching thin film transistor, a driving thin film transistor, and a storage capacitor. can

A diode layer 134 is disposed on the array layer 132, and the diode layer 134 includes red, green, and blue light emitting diodes 134r, which are respectively disposed in the red, green, and blue sub-pixels SPr, SPg, and SPb. 134g and 134b), and the red, green, and blue light emitting diodes 134r, 134g, and 134b may each include a first electrode (anode), a light emitting layer, and a second electrode (cathode).

A first electrode of each of the red, green, and blue light emitting diodes 134r, 134g, and 134b of the diode layer 134 may be connected to a source electrode of the driving TFT of the array layer 132 .

An encapsulation layer 136 is disposed on the diode layer 134 , and the encapsulation layer 134 may include a plurality of organic material layers and a plurality of inorganic material layers that prevent external oxygen or moisture from permeating.

The substrate 130 , the array layer 132 , the diode layer 134 , and the encaps layer 136 may have a thickness of about 0.044 mm.

A polarization layer 138 is disposed on the encapsulation layer 136 . The polarization layer 138 serves to minimize external light being reflected from the array layer 132 and the diode layer 134 and emitted to the outside again. .

For example, the polarization layer 138 may include a quarter wavelength layer and a linear polarization layer sequentially disposed on the encap layer 136 , and may have a thickness of about 0.191 mm.

A back plate 140 is disposed under the substrate 130 , and the back plate 140 serves to support and protect the substrate 130 .

For example, the back plate 140 may be made of plastic such as polyethylene terephthalate (PET), and may have a thickness of about 0.15 mm.

The substrate 130 , the array layer 132 , the diode layer 134 , the encaps layer 136 , the polarization layer 138 , and the back plate 140 constitute the display panel 128 .

A touch panel 154 and a cover glass 174 are sequentially disposed on the display panel 128, a first adhesive film 170 is disposed between the touch panel 154 and the cover glass 174, and a polarizing layer A second adhesive film 172 is disposed between the 138 and the touch panel 154 .

For example, the touch panel 154 may have a thickness of about 0.116 mm, and the cover glass 174 may have a thickness of about 1.30 mm.

In addition, the first and second adhesive films 170 and 172 may be made of an optically clear adhesive (OCA), respectively, and may each have a thickness of about 0.20 mm.

A heat sink 178 is disposed under the display panel 128 , and an adhesive layer 176 is disposed between the back plate 140 and the heat sink 178 .

The heat sink 178 serves to dissipate heat generated from the display panel 128. For example, the heat sink 178 may be made of a metal material having relatively high thermal conductivity, such as aluminum (Al). It may have a thickness of 0.33 mm.

In addition, the adhesive layer 176 may be made of a pressure sensitive adhesive (PSA) and may have a thickness of about 0.05 mm.

Such a touch display device 110 is manufactured using a touch film ( 180 of FIG. 3 ) including a touch panel 154 , which will be described with reference to FIGS. 3 to 6 .

3 is a plan view illustrating a touch film in a touch display device according to an embodiment of the present specification.

Referring to FIG. 3 , the touch film 180 used for manufacturing the touch display device 110 according to the embodiment of the present specification includes a touch sensor 187 , first and second insulating patterns 181 and 182 , It includes first and second transparent electrode patterns 183a and 184a and first and second auxiliary electrode patterns 185a and 186a.

The touch sensor 187 includes a plurality of touch transmission wirings (TL), a plurality of touch reception wirings (RL), a plurality of first connection wirings 156 , a plurality of second connection wirings 158 , and a plurality of third connection wirings. 160, wherein the plurality of touch transmission wirings TL and the plurality of touch reception wirings RL are transparent conductive such as indium tin oxide (ITO) or indium zinc oxide (IZO). It is made of a material, and at least one of the plurality of first connection wirings 156 , the plurality of second connection wirings 158 , and the plurality of third connection wirings 160 may be formed of a conductive material such as a metal.

A first transparent electrode pattern 183a is disposed under the touch sensor 187 , and a first insulating pattern 181 is disposed under the first transparent electrode pattern 183a .

A second transparent electrode pattern 184a is disposed on the touch sensor 187 , and a second insulating pattern 182 is disposed on the second transparent electrode pattern 184a .

Each of the first and second insulating patterns 181 and 182 may be made of an organic insulating material such as photoacryl (PAC), and may have a thickness in the range of about 6 μm to about 10 μm, respectively.

The first and second insulating patterns 181 and 182 may be formed by punching to suit the shape of the touch film 180 . In this case, when the first and second insulating patterns 181 and 182 are punched, a defect may occur in that the boundary portion is not neatly cut. Accordingly, to prevent this, the touch sensor 187 may be formed inwardly based on the edge.

In other words, the second insulating pattern 182 has a rectangular shape, the first insulating pattern 181 has a rectangular portion having the same size as the second insulating pattern 182 , and a protrusion 181a protruding from an edge of the rectangular portion. may include.

The first and second insulating patterns 181 and 182 are formed to have a size smaller than that of the touch sensor 187 , so that four sides of the first insulating pattern 181 and four sides of the rectangular portion of the second insulating pattern 182 are touch-sensitive. The sensor 187 may be disposed to be spaced apart from the four sides by the first width w1 inward.

As described above, as the sizes of the first and second insulating patterns 181 and 182 are smaller than the sizes of the touch sensor 187 , it may occur when the boundary between the first and second insulating patterns 181 and 182 is punched out. Process defects are minimized and yield and productivity are improved.

For example, the first width w1 may be a value in a range of about 0.5 mm to about 2.0 mm, for example, a value in a range of about 1.3 mm to about 1.5 mm.

If the first width w1 is smaller than about 0.5 mm, the boundary portion of the first and second insulating patterns 181 and 182 may be located within the punching error range during the punching process, so the boundary portion cannot be neatly cut during cutting. may occur, and when the first width w1 is greater than about 2.0 mm, the touch sensor 187 may be excessively exposed in the first and second insulating patterns 181 and 182 , and thus the touch sensitivity may be affected.

The touch film 180 may be in a state of a component formed by rolling before the attachment process to the display panel 128 . At this time, since the adhesive force between the first and second insulating patterns 181 and 182 and the touch sensor 187 is low, the first and second insulating patterns 181 and 182 may be formed inside the touch sensor 187 . In this case, the adhesive force is further lowered, so that a large amount of foreign matter may be generated at the boundary portion. Accordingly, in order to improve this, first and second transparent electrode patterns 183a and 184a may be additionally disposed at the boundary of four sides of the first and second insulating patterns 181 and 182 .

Since the first and second transparent electrode patterns 183a and 184a disposed at the boundary of four sides of the first and second insulating patterns 181 and 182 have higher adhesive strength than the touch sensor 187 , the first and second insulating patterns It is disposed on the touch sensor 187 at the boundary of the four sides of (181, 182) to improve adhesion and improve foreign matter defect.

In addition, the first and second transparent electrode patterns 183a and 184a may be formed of a material having a high resistance. Accordingly, the first and second auxiliary electrode patterns 185a and 186a made of a low-resistance material may be further disposed to be electrically connected to the first and second transparent electrode patterns 183a and 184a. However, since the first and second auxiliary electrode patterns 185a and 186a may have lower adhesion with the first and second insulating patterns 181 and 182 than the first and second transparent electrode patterns 183a and 184a, It may be arranged in an island shape in some areas. As described above, the first and second auxiliary electrode patterns 185a and 186a disposed at the boundary of the four sides of the first and second insulating patterns 181 and 182 are 4 of the first and second insulating patterns 181 and 182 . By electrically connecting the first and second transparent electrode patterns 183a and 184a disposed at the boundary of the sides to the ground wiring, static electricity defects that may occur at the edge during a touch operation may be improved.

In addition, as the size of the corner of the first insulating pattern 181 becomes larger than the size of the corner of the second insulating pattern 182 due to the protrusion 181a of the first insulating pattern 181 , the first insulating pattern 181 ), the peeling force of the first insulating pattern 181 is greater than the peeling force of the second insulating pattern 182 in the peeling process of starting peeling from the edge of the second insulating pattern 182 corresponding to the protrusion 181a. Defects in the peeling process such as whole peeling are minimized and yield and productivity are improved.

Although the example in which the protrusion 181a of the first insulating pattern 181 is formed at all corners of the rectangular portion of the first insulating pattern 181 is not limited thereto, the protrusion 181a of the first insulating pattern 181 is not limited thereto. may be formed at one or more corners of the rectangular portion of the first insulating pattern 181 , or the protrusion 181a of the first insulating pattern 181 may be formed on one of four sides of the rectangular portion of the first insulating pattern 181 . , in this case, in the peeling process, the peeling of the second insulating pattern 182 may be started from a portion corresponding to the protrusion 181a of the first insulating pattern 181 .

4 is a view of a cross-section I-I' in the touch display device according to the embodiment of the present specification. 5 is a view of a section II-II' in the touch display device according to the embodiment of the present specification. 6 is a view of a section III-III' in the touch display device according to the embodiment of the present specification.

4 to 6 are cross-sectional views taken along the cutting line I-I' to III-III' of FIG. 3, which will be described with reference to FIG. 3 together.

Referring to FIG. 4A , a corner portion of the touch film 180 along the cutting line I-I' in FIG. 3 is a touch sensor 187 , first and second insulating patterns 181 and 182 , and first and second auxiliary portions. Electrode patterns 185a and 186a may be disposed.

A first insulating pattern 181 may be formed at a lower portion with respect to the touch sensor 187 to have a protrusion 181a extending to an end of the touch sensor 187 . A first auxiliary electrode pattern 185a having a low resistance component may be disposed between the first insulating pattern 181 and the protrusion 181a and the touch sensor 187 .

A second insulating pattern 182 may be formed on the upper portion of the touch sensor 187 from an edge of the touch sensor 187 to a point spaced apart by a first width w1 inward. A second auxiliary electrode pattern 186a of a low resistance component may be disposed between the second insulating pattern 182 and the touch sensor 187 to partially overlap the second insulating pattern 182 .

The first and second auxiliary electrode patterns 185a and 186a are disposed to be spaced apart from the edge of the touch sensor 187 inward by a second width w2 and may have a third width w3.

Accordingly, the second insulating pattern 182 is formed to be smaller in the upper structure than the first insulating pattern 181 in the lower structure of the touch sensor 187 , and the peeling force of the first insulating pattern 181 is the second It becomes greater than the peeling force of the insulating pattern 182, and according to the upper structure of the step shape, defects in the peeling process such as peeling can be minimized and yield and productivity can be improved.

Referring to FIG. 5 , the touch film 180 along the cutting line II-II′ of FIG. 3 includes a touch sensor 187 , first and second insulating patterns 181 and 182 , and a first auxiliary electrode pattern layer 185 . ), a touch transmission wiring TL, a touch reception wiring RL, and second and third connection wirings 158 and 160 may be disposed.

When the touch film 180 is combined with the display panel 128 , the touch film 180 is equally divided according to the display area AA and the non-display area NA of the display panel 128 , and the display area AA of the touch film 180 . ), the touch transmission wiring TL and the touch reception wiring RL are disposed, and the non-display area NA of the touch film 180 is the first connecting the touch transmission wiring TL and the touch reception wiring RL. to the third connection wiring (156, 158, 160) is disposed routing area (RA), and routing area (RA) from the outside than the first and second insulating patterns (181, 182) including an area where the ends are arranged do.

A first insulating pattern 181 may be formed in a lower portion with respect to the touch sensor 187 from an edge of the touch sensor 187 to a point spaced apart by a first width w1 inward. A touch transmission wiring TL formed of the same material as the first transparent electrode pattern 183a of the touch sensor 187 is disposed between the first insulating pattern 181 and the touch sensor 187 in the display area AA. In the routing area RA, the second connection wiring 158 is respectively connected to both ends of the touch transmission wiring TL by a double routing method and formed of the same material as the first transparent electrode pattern 183a. Alternatively, the third connection wiring 160 may be disposed. The first auxiliary electrode pattern layer 185 having a low resistance component is disposed on the second connection wiring 158 or the third connection wiring 160 to more effectively transmit the touch transmission signal.

A second insulating pattern 182 may be formed on the upper portion of the touch sensor 187 from an edge of the touch sensor 187 to a point spaced apart by a first width w1 inward. A touch receiving wiring RL formed of the same material as the second transparent electrode pattern 184a of the touch sensor 187 is disposed between the second insulating pattern 182 and the touch sensor 187 in the display area AA. can be In the routing area RA of the side where the touch driving unit 152 is located, a first connection wiring 156 formed of the same material as the second transparent electrode pattern 184a is disposed, and at one end of the touch receiving wiring RL. It can be connected by a single routing method. A second auxiliary electrode pattern layer 186 (not shown) of a low resistance component is disposed on the first connection wiring 156 to more effectively transmit the touch reception signal.

A portion of each and the first and second transparent electrode patterns 183a and 184a overlap between the touch sensor 187 and the first and second insulating patterns 181 and 182 in the outer region of the routing area RA. can be arranged as much as possible. The first and second transparent electrode patterns 183a and 184a are disposed to be spaced apart from the edge of the touch sensor 187 inward by a fourth width w4 and may have a fifth width w5.

Referring to FIG. 6 , the touch film 180 along the cutting line III-III' of FIG. 3 includes a touch sensor 1870187, first and second insulating patterns 181 and 182, and first and second transparent electrode patterns. 183a and 184a and first and second auxiliary electrode patterns 185a and 186a may be disposed.

A first insulating pattern 181 may be formed in a lower portion with respect to the touch sensor 187 from an edge of the touch sensor 187 to a point spaced apart by a first width w1 inward. A first transparent electrode pattern 183a is disposed between the first insulating pattern 181 and the touch sensor 187 , and the first auxiliary electrode pattern 185a of a low resistance component formed in an island shape is formed as a first transparent electrode. It may be disposed to be electrically connected to the pattern 183a.

A second insulating pattern 182 may be formed on the upper portion of the touch sensor 187 from an edge of the touch sensor 187 to a point spaced apart by a first width w1 inward. A second transparent electrode pattern 184a is disposed between the second insulating pattern 182 and the touch sensor 187 so as to overlap a portion of the second insulating pattern 182, and is made of a low-resistance component formed in an island shape. The second auxiliary electrode pattern 186a may be electrically connected to the second transparent electrode pattern 184a and may be disposed to overlap a portion of the second insulating pattern 182 .

Since the first and second auxiliary electrode patterns 185a and 186a are made of a material having a low resistance such as copper (Cu) or aluminum (Al), the first and second transparent electrode patterns 183a and 184a having a high sheet resistance are formed. ) and lowers the resistance, so it is more advantageous to discharge static electricity.

At this time, the first and second auxiliary electrode patterns 185a and 186a are disposed to be spaced apart from the edge of the touch sensor 187 inward by a second width w2, and have a third width w3. , the first and second transparent electrode patterns 183a and 184a may be disposed to be spaced apart from the edge of the touch sensor 187 inward by a fourth width w4, and may have a fifth width w5. .

The first and second transparent electrode patterns 183a and 184a have higher adhesion to the first and second insulating patterns 181 and 182 than the first and second auxiliary electrode patterns 185a and 186a. Accordingly, by forming the third width w3 of the first and second auxiliary electrode patterns 185a and 186a smaller than the fifth width w5 of the first and second transparent electrode patterns 183a and 184a, the first and a contact area between the second insulating patterns 181 and 182 and the first and second transparent electrode patterns 183a and 184a may be formed to increase.

In addition, the centers of the first and second transparent electrode patterns 183a and 184a and the first and second auxiliary electrode patterns 185a and 186a may be identically disposed, and from the edge of the touch sensor 187 . In each of the second width w2 and the fourth width w4 spaced apart from each other, the second width w2 is formed to be larger than the fourth width w4, and the second transparent electrode is positioned above the touch sensor 187 . The pattern 184a, the second auxiliary electrode pattern 186a, and the second insulating pattern 182 may be configured in a step shape. Therefore, since the first and second insulating patterns 181 and 182 are spaced apart from each other inward compared to the touch sensor 187 in the upper and lower portions of the touch sensor 187, the boundary portion can be neatly cut during punching. In addition, by forming the first and second transparent electrode patterns 183a and 184a at the ends of the first and second insulating patterns 181 and 182 , adhesion to the touch sensor 187 can be increased. Accordingly, a defect in the generation of foreign matter at the boundary is minimized, and yield and productivity can be improved. In addition, by electrically connecting the first and second transparent electrode patterns 183a and 184a of high resistance through the first and second auxiliary electrode patterns 185a and 186a of low resistance, electrostatic characteristics may be further improved.

The touch display device according to the embodiment of the present specification may be described as follows.

A touch display device according to an embodiment of the present specification includes a touch sensor, a second insulating pattern disposed above the touch sensor, a first insulating pattern disposed below the touch sensor, and a first insulating pattern disposed between the touch sensor and the first insulating pattern. 1 It is possible to provide a touch film including a transparent electrode pattern and a second transparent electrode pattern disposed between the touch sensor and the second insulating pattern.

In the touch display device according to the embodiment of the present specification, the first and second transparent electrode patterns may partially overlap the first and second insulating patterns.

In the display device according to the exemplary embodiment of the present specification, the size of the first insulating pattern may be larger than the size of the second insulating pattern.

In the touch display device according to the embodiment of the present specification, four sides of the first and second insulating patterns may be disposed to be spaced apart from each other inwardly from the four sides of the touch sensor.

In the touch display device according to the embodiment of the present specification, the first insulating pattern may include a rectangular portion and at least one protrusion protruding from the rectangular portion.

The touch display device according to the embodiment of the present specification may further include first and second auxiliary electrode patterns disposed in an island shape on the first and second transparent electrode patterns.

In the touch display device according to the embodiment of the present specification, the first and second auxiliary electrode patterns may be electrically connected to the first and second transparent electrode patterns to prevent static electricity.

In the touch display device according to the embodiment of the present specification, the first and second auxiliary electrode patterns may have lower resistance than the first and second transparent electrode patterns.

In the touch display device according to the embodiment of the present specification, the first and second auxiliary electrode patterns may be disposed to have a smaller area than the first and second transparent electrode patterns.

In the touch display device according to the embodiment of the present specification, the first and second transparent electrode patterns may have higher adhesion than the first and second auxiliary electrode patterns.

A touch display device according to an embodiment of the present specification includes a display panel for displaying an image, a touch panel attached to the display panel for sensing a touch, and a heat sink emitting heat generated from the display panel under the display panel, , the touch panel may be in the form of a film in which first and second insulating patterns of a photosensitive organic insulating material are formed on the upper and lower portions of the touch sensor and the touch sensor.

Features, structures, effects, etc. described in the above-described examples of the present specification are included in at least one example of the present specification, and are not necessarily limited to only one example. Furthermore, features, structures, effects, etc. illustrated in at least one example of the present specification may be combined or modified with respect to other examples by those of ordinary skill in the art to which this specification belongs. Accordingly, the contents related to such combinations and modifications should be interpreted as being included in the scope of the present specification.

The present specification described above is not limited to the above-described embodiments and the accompanying drawings, and it is common in the technical field to which this specification belongs that various substitutions, modifications, and changes are possible without departing from the technical matters of the present specification. It will be clear to those who have the knowledge of Therefore, the scope of the present specification is indicated by the following claims, and all changes or modifications derived from the meaning and scope of the claims and their equivalent concepts should be construed as being included in the scope of the present specification.

110: touch display device
120: display unit
122: timing control unit
128: display panel
150: touch unit
152: touch driving unit
154: touch panel

Claims (20)

touch sensor;
a second insulating pattern disposed on the touch sensor;
a first insulating pattern disposed under the touch sensor;
a first transparent electrode pattern disposed between the touch sensor and the first insulating pattern; and
a second transparent electrode pattern disposed between the touch sensor and the second insulating pattern; Including, a touch film.
The method of claim 1,
The first and second transparent electrode patterns overlap a portion of the first and second insulating patterns, the touch film.
The method of claim 1,
The size of the first insulating pattern is larger than the size of the second insulating pattern, the touch film.
The method of claim 1,
Four sides of the first and second insulating patterns are arranged to be spaced apart from each other inwardly from the four sides of the touch sensor, a touch film.
The method of claim 1,
The first insulating pattern includes a rectangular portion and at least one protrusion protruding from the rectangular portion, the touch film.
6. The method according to any one of claims 2 to 5,
The touch film further comprising first and second auxiliary electrode patterns disposed in an island shape on the first and second transparent electrode patterns.
7. The method of claim 6,
The first and second auxiliary electrode patterns are electrically connected to the first and second transparent electrode patterns to prevent static electricity, the touch film.
7. The method of claim 6,
The resistance of the first and second auxiliary electrode patterns is lower than the resistance of the first and second transparent electrode patterns, the touch film.
7. The method of claim 6,
The first and second auxiliary electrode patterns are disposed to have a smaller area than the first and second transparent electrode patterns, the touch film.
7. The method of claim 6,
The first and second transparent electrode patterns have higher adhesive strength than the first and second auxiliary electrode patterns, a touch film.
a display panel for displaying an image;
a touch panel attached to the display panel and sensing a touch; and
a heat sink dissipating heat generated from the display panel under the display panel; including,
The touch panel is
It is a film type in which first and second insulating patterns of a photosensitive organic insulating material are formed on the touch sensor and the upper and lower parts of the touch sensor.
, touch display.
12. The method of claim 11,
The touch panel is
a first transparent electrode pattern disposed between the touch sensor and the first insulating pattern; and
a second transparent electrode pattern disposed between the touch sensor and the second insulating pattern; further comprising,
The first and second transparent electrode patterns overlap a portion of the first and second insulating patterns, the touch display device.
13. The method of claim 12,
The size of the first insulating pattern is larger than the size of the second insulating pattern, the touch display device.
13. The method of claim 12,
4 sides of the first and second insulating patterns are disposed to be spaced apart from each other inwardly from the 4 sides of the touch sensor.
13. The method of claim 12,
The first insulating pattern includes a rectangular portion and at least one protrusion protruding from the rectangular portion.
16. The method according to any one of claims 13 to 15,
The touch display device further comprising first and second auxiliary electrode patterns disposed in an island shape on the first and second transparent electrode patterns.
17. The method of claim 16,
The first and second auxiliary electrode patterns are electrically connected to the first and second transparent electrode patterns to prevent static electricity.
17. The method of claim 16,
The first and second auxiliary electrode patterns have a lower resistance than the first and second transparent electrode patterns.
17. The method of claim 16,
The first and second auxiliary electrode patterns are arranged to have a smaller area than the first and second transparent electrode patterns, the touch display device.
17. The method of claim 16,
The first and second transparent electrode patterns have higher adhesion than the first and second auxiliary electrode patterns, the touch display device.

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