Display device

Abstract

A display device is provided, comprising: a display substrate in which a plurality of sub-pixel regions are defined; a light emitting diode ("LED") located on the display substrate; a touch sensor electrode located on the display substrate and comprising at least one touch electrode; and a dyke separating the plurality of sub-pixel regions, wherein each of the plurality of sub-pixel regions may include a first region in which the LED is disposed and a second region in which the touch sensor electrode is disposed.

Description

[0001] This application is a divisional application of the invention patent application "Display Device" with application date of March 21, 2017 and application number 201710169205.6. Technical Field

[0002] One or more exemplary embodiments relate to a display device. Background Art

[0003] A light emitting diode ("LED") is a type of semiconductor element, ie, a pn junction diode into which holes and electrons are injected when a forward bias is applied thereto and energy generated by the recombination of the holes and electrons is converted into light.

[0004] LEDs can be used in various types of mobile devices such as smart phones, laptops, digital cameras, camcorders, mobile information terminals, tablet personal computers, and watches, as well as in various types of electronic devices such as desktop computers, televisions ("TV") sets, outdoor billboards, exhibition display devices, automobile dashboards, and heads-up displays ("HUDs"). Summary of the invention

[0005] One or more exemplary embodiments include a display device that displays an image via a light emitting diode ("LED") and has a touch function that can be performed via a touch screen.

[0006] Additional exemplary embodiments will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the presented exemplary embodiments.

[0007] According to an exemplary embodiment of the invention, a display device may include: a display substrate having multiple sub-pixel areas; an LED located above the display substrate; a touch sensor electrode located above the display substrate and including at least one touch electrode; and a dam-like member separating the sub-pixel areas, wherein each of the multiple sub-pixel areas may include a first area where the LED is provided and a second area where the touch sensor electrode is provided.

[0008] According to one or more exemplary embodiments, each of the plurality of sub-pixel regions may be located in an opening surrounded by a dam, and a first region where an LED is disposed and a second region where a touch sensor electrode is disposed may be adjacent to each other in each sub-pixel region.

[0009] According to one or more exemplary embodiments, the LED may include a first contact electrode, a second contact electrode, and a pn diode arranged between the first contact electrode and the second contact electrode, wherein the first contact electrode may be arranged on the bottom of the LED and electrically connected to the first electrode connected to the thin film transistor, and the second contact electrode may be electrically connected to the second electrode arranged on the top of the LED.

[0010] According to one or more exemplary embodiments, the touch sensor electrodes and the first electrodes may be arranged on the same layer.

[0011] According to one or more exemplary embodiments, the touch sensor electrodes and the second electrodes may be arranged on the same layer.

[0012] According to one or more exemplary embodiments, a filling layer in which an LED is embedded may fill the opening, and a touch sensor electrode may be arranged on the filling layer.

[0013] According to one or more exemplary embodiments, the touch sensor electrodes may include electrodes operating in a self-capacitance method and sensing capacitance changes of a single touch electrode, and the touch sensor wiring may be electrically connected to the touch sensor electrodes, respectively, and exchange electrical signals of the touch sensor electrodes with an external device.

[0014] According to one or more exemplary embodiments, the touch sensor electrode and the first electrode can be arranged on the same layer and the filling layer can be arranged in the opening, the LED and the touch sensor electrode are embedded in the filling layer, and the touch sensor wiring electrically connected to the touch sensor electrode via the contact hole can be arranged on the filling layer.

[0015] According to one or more exemplary embodiments, a filling layer may be arranged in the opening and the LED may be embedded in the filling layer, a touch sensor electrode may be arranged on the filling layer, the touch sensor electrode and the second electrode may be on the same layer, and a touch sensor wiring may be arranged on the touch sensor electrode.

[0016] According to one or more exemplary embodiments, the touch sensor electrodes may include electrodes operating in a mutual capacitance method and sense a capacitance change occurring between a first touch electrode and a second touch electrode.

[0017] According to one or more exemplary embodiments, the first touch electrode and the second touch electrode may be arranged on the same layer as the first electrode or the second electrode.

[0018] According to one or more exemplary embodiments, a plurality of first touch electrodes may be electrically connected via connection wirings arranged on a different layer with respect to the first touch electrodes, and the second touch electrodes may be electrically connected to respective touch sensor wirings.

[0019] According to one or more exemplary embodiments, the first touch electrodes and the second touch electrodes may be separated on different layers.

[0020] According to one or more exemplary embodiments, the first touch electrode and at least one of a gate electrode, a source electrode, and a drain electrode provided in a thin film transistor may be disposed on the same layer, and the second touch electrode and the first electrode or the second electrode may be disposed on the same layer.

[0021] According to one or more exemplary embodiments, the touch sensor electrodes may include electrodes for sensing capacitance changes along an X-axis and a Y-axis intersecting the X-axis, and force sensing electrodes for sensing capacitance changes along a Z-axis perpendicular to the X-axis and the Y-axis together with the touch sensor electrodes may be arranged on the display substrate.

[0022] According to one or more exemplary embodiments, at least one of the functional layers covering the sub-pixel area may be disposed over the display substrate, and the force sensing electrode may be disposed over the at least one of the functional layers.

[0023] According to one or more exemplary embodiments, the force sensing electrodes may include a conductive polymer material.

[0024] According to one or more exemplary embodiments, a refractive index matching layer having a refractive index smaller than that of the force sensing electrode may be disposed on at least one surface of the force sensing electrode.

[0025] According to one or more exemplary embodiments, the embankment may include a first embankment and a second embankment arranged on the first embankment, the LED may be arranged in an opening surrounded by the first embankment, the second embankment surrounding the LED may be arranged on the first embankment, and the second embankment may be electrically connected to the LED on the second embankment.

[0026] According to one or more exemplary embodiments, a thin film transistor arranged at the bottom of the sub-pixel area may include a gate electrode, a source electrode and a drain electrode, the first touch electrode and at least one of the first electrode, the gate electrode, the source electrode and the drain electrode may be arranged on the same layer, and the second touch electrode and the second electrode may be arranged on the same layer. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] These and / or other exemplary embodiments will become apparent and more readily understood from the following description of exemplary embodiments taken in conjunction with the accompanying drawings, in which:

[0028] Figure 1 is a perspective view of an exemplary embodiment of a display device;

[0029] Figure 2 is a partially exploded perspective view of an exemplary embodiment of a touch screen panel;

[0030] Figure 3 is a plan view of a display device showing an exemplary embodiment of an arrangement of light emitting diodes ("LEDs") and touch sensor electrodes;

[0031] Figure 4 yes Figure 3 A cross-sectional view of a single sub-pixel in FIG.

[0032] Figure 5 is a cross-sectional view of another exemplary embodiment of a display device;

[0033] Figure 6 is a plan view of an exemplary embodiment of an arrangement of LEDs and touch sensor electrodes;

[0034] Figure 7 is a plan view of another exemplary embodiment of an arrangement of LEDs and touch sensor electrodes;

[0035] Figure 8 is a cross-sectional view of another exemplary embodiment of a single sub-pixel;

[0036] Fig. 9 is a cross-sectional view of another exemplary embodiment of a single sub-pixel;

[0037] Fig.10 is a plan view of another exemplary embodiment of an arrangement of LEDs and touch sensor electrodes;

[0038] Fig.11 is a plan view of another exemplary embodiment of an arrangement of LEDs and touch sensor electrodes;

[0039] Fig.12 yes Fig.11 A cross-sectional view of a single sub-pixel in FIG.

[0040] Fig.13 is a cross-sectional view of another exemplary embodiment of a display device;

[0041] Fig.14 is a cross-sectional view of another exemplary embodiment of a display device;

[0042] Fig.15 is a cross-sectional view of another exemplary embodiment of a display device;

[0043] Fig.16 is a cross-sectional view of another exemplary embodiment of a display device;

[0044] Fig.17 is a cross-sectional view of another exemplary embodiment of a display device;

[0045] Fig.18 is a cross-sectional view of another exemplary embodiment of a display device;

[0046] Fig.19 is a cross-sectional view of another exemplary embodiment of a single sub-pixel;

[0047] Fig. 20 is a cross-sectional view of another exemplary embodiment of a single sub-pixel. DETAILED DESCRIPTION

[0048] Reference will now be made in detail to the exemplary embodiments, examples of which are shown in the accompanying drawings, in which the same reference numerals always represent the same elements. In this regard, the exemplary embodiments may have different forms and should not be construed as being limited to the descriptions set forth herein. Therefore, the exemplary embodiments are described below only by reference to the accompanying drawings to explain the exemplary embodiments of the specification. A statement such as "at least one (kind) of..." modifies the entire column of elements, rather than the individual elements of the column, when it follows a column of elements.

[0049] Because the present invention allows for various changes and many exemplary embodiments, the exemplary embodiments will be shown in the drawings and described in detail in the written description. However, this is not intended to limit the invention to a specific mode of practice, and it will be understood that all changes, equivalents and substitutes that do not depart from the spirit and technical scope of the present invention are included in the present invention. In the description of the invention, some detailed explanations of the related art are omitted when it is considered that some detailed explanations of the related art will unnecessarily obscure the essence of the invention.

[0050] It will be understood that when an element is referred to as being “on” another element, it can be directly on the other element or intervening elements may be present therebetween. In contrast, when an element is referred to as being “directly on” another element, there are no intervening elements present.

[0051] Although terms such as "first", "second", etc. may be used to describe various components, these components are not necessarily limited to the above terms. The above terms are only used to distinguish one component from another.

[0052] The terms used herein are for the purpose of describing specific embodiments only and are not intended to be limiting. As used herein, unless the context clearly indicates otherwise, the singular forms "one", "a kind" and "the" are intended to include plural forms including "at least one of...". As used herein, the term "and / or" includes any and all combinations of one or more of the relevant listed items. It will also be understood that the terms "include" and / or "comprising" when used in this specification indicate the presence of the stated features, regions, wholes, steps, operations, elements and / or components, but do not exclude the presence or addition of one or more other features, regions, wholes, steps, operations, elements, components and / or their groups.

[0053] In addition, relative terms such as "below" or "bottom" and "above" or "top" may be used herein to describe the relationship of one element to another element as shown in the accompanying drawings. It will be understood that the relative terms are intended to encompass different orientations of the device in addition to the orientation depicted in the accompanying drawings. In an exemplary embodiment, when the device in one of the accompanying drawings is turned over, the elements described as being on the "lower" side of the other elements will then be positioned on the "upper" side of the other elements. Therefore, depending on the specific orientation of the drawings, the exemplary term "below" may include both "below" and "above" orientations. Similarly, when the device in one of the accompanying drawings is turned over, the elements described as being "below" or "under" the other elements will then be positioned "above" the other elements. Therefore, the exemplary terms "below" or "under" may include both above and below orientations.

[0054] As used herein, "about" or "approximately" includes the stated value and means within an acceptable range of deviation for the particular value determined by one of ordinary skill in the art, taking into account the measurement being discussed and the errors associated with the measurement of the particular quantity (i.e., the limitations of the measurement system). For example, "about" may mean within one or more standard deviations, or within ±30%, ±20%, ±10%, or ±5% of the stated value.

[0055] The terms used in the specification are only used to describe exemplary embodiments and are not intended to limit the invention. Unless the context clearly indicates a different meaning, expressions used in the singular include expressions in the plural. In the specification, it will be understood that terms such as "include", "have" and "include" are intended to indicate the presence of features, quantities, steps, actions, components, parts or combinations thereof disclosed in the specification, without excluding the possibility that one or more other features, quantities, steps, actions, components, parts or combinations thereof may exist or may be added.

[0056] The invention will now be described more fully with reference to the accompanying drawings, in which exemplary embodiments of the invention are shown. Like reference numerals in the drawings denote like elements, and thus their repeated description will be omitted.

[0057] Figure 1 is a perspective view of a display apparatus 100 according to an exemplary embodiment.

[0058] Reference Figure 1 , the display device 100 may include a display panel 110. The display panel 110 may include an active area AA on which an image is displayed and a non-active area IAA extending outward from the active area AA. According to an exemplary embodiment, the non-active area IAA may surround the active area AA.

[0059] According to an exemplary embodiment, the active area AA may extend in a length direction of the display panel 110, but the invention is not limited thereto. According to an exemplary embodiment, the display panel 110 may be a rigid panel or a flexible panel.

[0060] The display apparatus 100 may include a touch screen panel (“TSP”) that recognizes a position where a user contacts the display apparatus 100 .

[0061] Figure 2 is a partially exploded perspective view of a TSP 200 according to an exemplary embodiment.

[0062] Reference Figure 2 , the TSP 200 may include a plurality of touch sensor electrodes 230 . The plurality of touch sensor electrodes 230 may include a plurality of first touch electrodes 210 and a plurality of second touch electrodes 220 .

[0063] According to an exemplary embodiment, the TSP 200 is a plurality of touch sensor electrodes 230 arranged on a Figure 1 An on-cell TSP is provided in the display panel 110. However, the structure of the TSP is not limited thereto.

[0064] According to another exemplary embodiment, for example, the TSP 200 may have a plurality of touch sensor electrodes 230 arranged in Figure 1 The structure of the TSP may be an in-cell TSP structure inside the display panel 110 or a hybrid TSP structure which is a combination of the external TSP structure and the in-cell TSP structure. Therefore, the structure of the TSP is not limited to only one type.

[0065] The plurality of first touch electrodes 210 and the plurality of second touch electrodes 220 may be alternately arranged on the substrate 201 with respect to each other. The substrate 201 may be arranged on Figure 1 The encapsulation substrate in the display panel 110 in the embodiment of the present invention. The plurality of first touch electrodes 210 and the plurality of second touch electrodes 220 may be arranged in directions crossing each other. Each of the first touch electrodes 210 may be a transmission electrode, and each of the second touch electrodes 220 may be a reception electrode.

[0066] According to an exemplary embodiment, the TSP 200 may have a mutual capacitance sensing structure that measures capacitance changes at points where a plurality of touch sensor electrodes 230 cross each other. However, the structure of the TSP 200 is not limited thereto. According to another exemplary embodiment, the structure of the TSP 200 may be a self-capacitance sensing structure that measures capacitance changes at each pixel for touch recognition via a single touch sensor electrode 230. Therefore, the structure of the TSP 200 is not limited to only one type.

[0067] The plurality of first touch electrodes 210 and the plurality of second touch electrodes 220 may be arranged on the same layer on the substrate 201. In another exemplary embodiment, the plurality of first touch electrodes 210 and the plurality of second touch electrodes 220 may be separated from each other on different layers.

[0068] A pair of first touch electrodes 210 disposed adjacent to each other on the substrate 201 may be electrically connected to each other via a first touch connector 211. A pair of second touch electrodes 220 disposed adjacent to each other on the substrate 201 may be electrically connected to each other via a second touch connector 221. The pair of second touch electrodes 220 may be connected to the second touch connector 221 disposed on a different layer via a contact hole 241 to avoid interference with the first touch electrodes 210.

[0069] An insulating layer 250 covering the plurality of first touch electrodes 210 and the plurality of second touch electrodes 220 may be disposed on the substrate 201 .

[0070] When an input tool such as a user's finger or a pen approaches or contacts the substrate 201 , the TSP 200 may detect a touch position by measuring a capacitance change between the first touch electrode 210 and the second touch electrode 220 .

[0071] Research and development on a display device including a TSP having a plurality of micro LEDs has been conducted.

[0072] Figure 3 is a plan view of an arrangement of LEDs 325 and touch sensor electrodes 326 of a display device 300 according to an exemplary embodiment. Figure 4 yes Figure 3 A cross-sectional view of a single sub-pixel of the display device 300 is shown.

[0073] According to an exemplary embodiment, each of the sub-pixels of the display device 300 may include at least one thin film transistor ("TFT") and at least one micro LED. However, the TFT is not necessarily limited to Figure 3 A structure is feasible, the number and structure of which can be varied in various ways.

[0074] Reference Figure 3 and Figure 4 , the display device 300 may include a plurality of sub-pixel regions 301. The sub-pixel regions 301 may be separated from each other along the X-axis and Y-axis directions on the display substrate 311. The sub-pixel regions 301 may be separated from each other by at least one layer of banks 323. The sub-pixel regions 301 may include a first region 302 where an LED 325 is disposed (e.g., placed) and a second region 303 where a touch sensor electrode 326 is placed.

[0075] In an exemplary embodiment, for example, the display substrate 311 may be any one of a rigid glass substrate, a flexible glass substrate, and a flexible polymer substrate. In an exemplary embodiment, for example, the display substrate 311 may be transparent, translucent, or opaque.

[0076] The buffer layer 312 may be disposed on the display substrate 311. The buffer layer 312 may completely cover the top surface of the display substrate 311. The buffer layer 312 may include an inorganic layer or an organic layer. The buffer layer 312 may be a single layer or a multi-layer.

[0077] The TFT may be disposed on the buffer layer 312. The TFT may include a semiconductor active layer 313, a gate electrode 318, a source electrode 320, and a drain electrode 321. According to an exemplary embodiment, the TFT may be a top gate type. However, the invention is not limited thereto, and the TFT may be other types such as a bottom gate type.

[0078] The semiconductor active layer 313 may be disposed on the buffer layer 312 .

[0079] The semiconductor active layer 313 may include a source region 314 and a drain region 315 positioned by doping n-type impurity ions or p-type impurity ions. The region between the source region 314 and the drain region 315 may be a channel region 316 not doped with impurities. In an exemplary embodiment, for example, the semiconductor active layer 313 may be an organic semiconductor, an inorganic semiconductor, or amorphous silicon. In another exemplary embodiment, for example, the semiconductor active layer 313 may be an oxide semiconductor.

[0080] The gate insulating layer 317 may be disposed on the semiconductor active layer 313. The gate insulating layer 317 may include an inorganic layer. The gate insulating layer 317 may be a single layer or a multi-layer.

[0081] The gate electrode 318 may be disposed on the gate insulating layer 317. The gate electrode 318 may include a material having good conductivity. The gate electrode 318 may be a single layer or a multi-layer.

[0082] An interlayer insulating layer 319 may be disposed on the gate electrode 318. The interlayer insulating layer 319 may include an inorganic layer or an organic layer.

[0083] The source electrode 320 and the drain electrode 321 may be disposed on the interlayer insulating layer 319. In detail, a contact hole may be defined by removing a portion of the gate insulating layer 317 and a portion of the interlayer insulating layer 319. Then, the source electrode 320 may be electrically connected to the source region 314 via the contact hole, and the drain electrode 321 may be electrically connected to the drain region 315 via the contact hole.

[0084] The planarization layer 322 may be disposed on the source electrode 320 and the drain electrode 321. The planarization layer 322 may include an inorganic layer or an organic layer.

[0085] A dike 323 of at least one layer separating the sub-pixel regions 301 may be arranged on the planarization layer 322. The dike 323 may include an inorganic layer or an organic layer. The dike 323 may be transparent or opaque. The dike 323 may include a light absorbing material, a light reflecting material, or a light scattering material. The dike 323 may be used as a light blocking layer with low light transmittance.

[0086] The opening 324 may be defined above the TFT by removing a portion of the dike 323. The first electrode 333 may be arranged on the planarization layer 322 exposed by removing a portion of the dike 323. The first electrode 333 may be electrically connected to the drain electrode 321 via a contact hole defined in the planarization layer 322. The first electrode 333 may include a transparent electrode or a metal electrode. The first electrode 333 may have various patterns. In an exemplary embodiment, for example, the first electrode 333 may be patterned in an island shape.

[0087] The sub-pixel region 301 may include a first region 302 where an LED 325 is placed and a second region 303 where a touch sensor electrode 326 is placed. The LED 325 and the touch sensor electrode 326 may be arranged in the sub-pixel region 301.

[0088] In detail, each of the sub-pixel regions 301 may be located in an opening 324 surrounded by a dam-shaped member 323. A first region 302 in which an LED 325 is placed and a second region 303 in which a touch sensor electrode 326 is placed may be arranged adjacent to each other in each of the sub-pixel regions 301. According to an exemplary embodiment, a size of the second region 303 may be larger than a size of the first region 302.

[0089] LED 325 may emit light in a specific wavelength band covering a range from ultraviolet ("UV") rays to visible light. In an exemplary embodiment, for example, LED 325 may be a micro LED. According to an exemplary embodiment, for example, LED 325 may be a red LED, a green LED, a blue LED, a white LED, or a UV LED.

[0090] The LED 325 may include a first contact electrode 328 , a second contact electrode 329 , and a pn diode 327 disposed between the first contact electrode 328 and the second contact electrode 329 .

[0091] The pn diode 327 may include a p-doped layer 330 on the bottom, an n-doped layer 331 on the top, and at least one quantum well layer 332 disposed between the p-doped layer 330 and the n-doped layer 331. In another exemplary embodiment, the doped layer 331 on the top may be a p-doped layer, and the doped layer 330 on the bottom may be an n-doped layer.

[0092] The first contact electrode 328 may be arranged on the p-doped layer 330 located on the bottom. The first contact electrode 328 may be electrically connected to the first electrode 333. The second contact electrode 329 may be arranged on the n-doped layer 331 located on the top. The second contact electrode 329 may be electrically connected to the second electrode 334. The second electrode 334 may include a transparent electrode or a metal electrode. The second electrode 334 may include patterns of various shapes. According to an exemplary embodiment, the second electrode 334 may be a common electrode.

[0093] The touch sensor electrode 326 may be arranged in the second region 303 of each of the sub-pixel regions 301. The touch sensor electrode 326 may include a metal layer. In the case of a transparent display device, the touch sensor electrode 326 may include a transparent conductive layer such as an indium tin oxide ("ITO") layer.

[0094] The touch sensor electrodes 326 may be connected to Figure 2 The touch sensor electrode 326 may extend to the adjacent sub-pixel region 301. According to an exemplary embodiment, the touch sensor electrode 326 may be Figure 2 A portion of the first touch electrode 210 or the second touch electrode 220 in FIG.

[0095] The touch sensor electrode 326 may be disposed on the same layer as the layer on which the first electrode 333 is disposed. The touch sensor electrode 326 may include the same material as that of the first electrode 333 and may be obtained through the same process as that of the first electrode 333. In other exemplary embodiments, the touch sensor electrode 326 may be patterned using another metal material.

[0096] According to an exemplary embodiment, the touch sensor electrode 326 may be electrically connected to the first electrode 333. In another exemplary embodiment, the touch sensor electrode 326 may apply a separate electrical signal.

[0097] The touch sensor electrode 326 may be driven via a mutual capacitance method or a self capacitance method according to a connection method.

[0098] In the case of the mutual capacitance method, the touch sensor electrodes 326 may be sensing electrodes such as Figure 2 The plurality of touch electrodes may be arranged on the same layer above the display substrate 311. In another exemplary embodiment, the plurality of touch electrodes may be separated on different layers above the display substrate 311.

[0099] In the case of a self-capacitance method, the touch sensor electrode 326 may be an electrode that senses a capacitance change of a single touch electrode by using the single touch electrode.

[0100] According to an exemplary embodiment, a ground wiring (not shown) may also be arranged in the second region 303 of the sub-pixel area 301 .

[0101] The filling layer 335 may be filled in the opening 324. The LED 325 and the touch sensor electrode 326 may be embedded in the filling layer 335. In an exemplary embodiment, the filling layer 335 may include an organic material, but the invention is not limited thereto.

[0102] Likewise, the LED 325 may be disposed in the first region 302 of the sub-pixel region 301. The touch sensor electrode 326 may be disposed in the second region 303 of the sub-pixel region 301.

[0103] Hereinafter, the same reference numerals in the drawings shown above may denote the same components performing the same functions. Therefore, repeated descriptions will be omitted, and only main specific parts of each exemplary embodiment will be selectively described.

[0104] Figure 5 is a cross-sectional view of a display device 500 according to another exemplary embodiment.

[0105] Reference Figure 5 , the sub-pixel region 301 may include a first region 302 where the LED 325 is placed and a second region 303 where the touch sensor electrode 526 is placed. A filling layer 335 may be filled in the opening 324 from which a portion of the dam 323 is removed.

[0106] The LED 325 may be embedded in the filling layer 335. The touch sensor electrode 526 may be arranged on the filling layer 335. The touch sensor electrode 526 and the second electrode 334 may be arranged on the same layer. The touch sensor electrode 526 may include the same material as that of the second electrode 334 and may be obtained via the same process as that of the second electrode 334. The touch sensor electrode 526 may be driven via a mutual capacitance method or a self-capacitance method according to a connection method.

[0107] According to an exemplary embodiment, the ground wiring 536 may also be arranged in the second region 303 of the sub-pixel region 301. The ground wiring 536 and the touch sensor electrode 526 may be arranged on the same layer. The ground wiring 536 may eliminate noise caused by pixel driving. When the ground wiring 536 is arranged, capacitance may be reduced, and noise may be subsequently reduced.

[0108] The ground wiring 536 may receive an electrical signal from a power line through which a constant current flows. In another exemplary embodiment, a ground voltage may be applied to the ground wiring 536. In another exemplary embodiment, the ground wiring 536 may be in a floating state.

[0109] Figure 6 is a plan view of an arrangement of LEDs 325 and touch sensor electrodes 626 according to an exemplary embodiment.

[0110] Reference Figure 6 , the LED 325 and the touch sensor electrode 626 of the display device 600 may be arranged in each of the sub-pixel regions 601. Each LED 325 may be arranged in each sub-pixel region 601, and the touch sensor electrode 626 may extend to an adjacent sub-pixel region 601. Each of the sub-pixel regions 601 may include a first region 602 where the LED 325 is placed and a second region 603 where the touch sensor electrode 626 is placed.

[0111] The area of ​​the touch sensor electrode 626 can be enlarged by enlarging the gap g between a pair of LEDs 325 that involve different light emission and are adjacent to each other in the X-axis direction. When the area of ​​the touch sensor electrode 626 is increased, touch sensitivity can be improved.

[0112] According to an exemplary embodiment, the LED 325 arranged in each sub-pixel may include at least one of a red LED, a green LED, a blue LED, a white LED, and a UV LED. In another exemplary embodiment, a color filter layer having a hue corresponding to each LED 325 may also be arranged above the LED 325.

[0113] Figure 7 is a plan view of an arrangement of LEDs and touch sensor electrodes according to another exemplary embodiment.

[0114] Reference Figure 7 , the display device 700 may include a plurality of sub-pixel regions 701. The sub-pixel regions 701 may be separated from each other in the X-axis and Y-axis directions. The sub-pixel region 701 may include a first region 702 where the LED 325 is placed and a second region 703 where the touch sensor electrode 726 is placed. The touch sensor electrode 726 may extend to an adjacent sub-pixel region 701.

[0115] According to an exemplary embodiment, the touch sensor electrode 726 may have a self-capacitance sensing structure. The touch sensor electrode 726 may be an electrode that senses a capacitance change in a single touch electrode. The touch sensor wiring 727 may be arranged on the touch sensor electrode 726. For example, in an exemplary embodiment, a plurality of touch sensor wirings 727 may be arranged in the sub-pixel area 701 arranged along the Y-axis direction.

[0116] The touch sensor wiring 727 may extend in the Y-axis direction and may be electrically connected to the respective touch sensor electrodes 726 arranged continuously in the Y-axis direction. The touch sensor wiring 727 may be electrically connected to the touch sensor electrodes 726 and an external device (not shown). The changed capacitance may be transferred from a single touch sensor electrode 726 to an external device via the touch sensor wiring 727, and a sensor voltage generated by the external device may be transferred to the touch sensor electrode 726.

[0117] According to an exemplary embodiment, the touch sensor wiring 727 may be directly or indirectly connected to the touch sensor electrode 726 on the touch sensor electrode 726 .

[0118] Reference Figure 8 , the sub-pixel region 301 of the display device 800 may include a first region 302 where the LED 325 is placed and a second region 303 where the touch sensor electrode 826 is placed. The filling layer 335 may be filled in the opening 324 defined by removing a portion of the dam 323 .

[0119] The touch sensor electrode 826 and the first electrode 333 may be arranged on the same layer. The touch sensor wiring 827 may be arranged on the filling layer 335. The touch sensor wiring 827 may be arranged in the second region 303. The touch sensor wiring 827 may be electrically connected to the touch sensor electrode 826 via a contact hole 828 defined in the filling layer 335.

[0120] According to an exemplary embodiment, the touch sensor wiring 827 may be included on the same layer as at least one of the gate electrode 318, the source electrode 320, and the drain electrode 321. However, the current exemplary embodiment is not limited to a single location.

[0121] Reference Fig. 9 , the sub-pixel region 301 of the display device 900 may include a first region 302 where the LED 325 is placed and a second region 303 where the touch sensor electrode 926 is placed. The filling layer 335 may be filled in the opening 324 defined by removing a portion of the dam 323 .

[0122] The touch sensor electrode 926 may be disposed on the filling layer 335. The touch sensor electrode 926 and the second electrode 334 may be disposed on the same layer. The touch sensor wiring 927 may be disposed on the touch sensor electrode 926. The touch sensor wiring 927 may be directly connected to the touch sensor electrode 926.

[0123] Fig.10 is a plan view of an arrangement of LEDs 325 and touch sensor electrodes 1026 according to another exemplary embodiment.

[0124] Reference Fig.10 , the display device 1000 may include a plurality of sub-pixel regions 1001. The sub-pixel regions 1001 may be separated from each other in the X-axis and Y-axis directions. The sub-pixel region 1001 may include a first region 1002 where the LED 325 is placed and a second region 1003 where the touch sensor electrode 1026 is placed. The touch sensor electrode 1026 may extend to an adjacent sub-pixel region 1001.

[0125] According to an exemplary embodiment, the touch sensor electrode 1026 may have a mutual capacitance sensing structure. The touch sensor electrode 1026 may be an electrode that senses a capacitance change generated between the first touch electrode 1028 and the second touch electrode 1029. The first touch electrode 1028 and the second touch electrode 1029 may be arranged on the same layer.

[0126] The first touch electrodes 1028 and the second touch electrodes 1029 may be alternately arranged in the X-axis direction. A pair of first touch electrodes 1028 separated from each other in the X-axis direction and having the second touch electrode 1029 therebetween may be electrically connected to each other via a connection wiring 1027 arranged on a different layer relative to the first touch electrodes 1028. According to an exemplary embodiment, the connection wiring 1027 may include the same material as that of at least one of the gate electrode, the source electrode, and the drain electrode. In another exemplary embodiment, the connection wiring 1027 may be electrically connected to any one of the gate electrode, the source electrode, and the drain electrode.

[0127] The second touch electrodes 1029 may be connected to separate touch sensor wirings, respectively, or may be directly connected to a touch integrated circuit (“IC”) on one edge of the display device 1000 .

[0128] Fig.11 is a plan view of an arrangement of LEDs and touch sensor electrodes according to another exemplary embodiment, Fig.12 yes Fig.11 Cross-sectional view of a single sub-pixel in FIG.

[0129] Reference Fig.11 and Fig.12 , the display device 1100 may include a plurality of sub-pixel regions 1101. The sub-pixel regions 1101 may be separated from each other in the X-axis and Y-axis directions. The sub-pixel region 1101 may include a first region 1102 where the LED 325 is placed and a second region 1103 where the touch sensor electrode 1126 is placed. The touch sensor electrode 1126 may extend to an adjacent sub-pixel region 1101.

[0130] According to an exemplary embodiment, the touch sensor electrode 1126 may have a mutual capacitance sensing structure. The touch sensor electrode 1126 may include a first touch electrode 1128 and a second touch electrode 1129. The first touch electrode 1128 and the second touch electrode 1129 may be alternately arranged in the X-axis direction. Fig.10 Unlike shown, the first touch electrodes 1128 and the second touch electrodes 1129 may be separated from each other on different layers.

[0131] The first touch electrode 1128, which may be a metal electrode, and a single electrode disposed on the TFT may be a metal electrode disposed on the same layer. In an exemplary embodiment, for example, the first touch electrode 1128 and the source electrode 320 or the drain electrode 321 may be disposed on the same layer. The first touch electrode 1128 may include the same material as the source electrode 320 or the drain electrode 321 in the same process as the source electrode 320 or the drain electrode 321. In another exemplary embodiment, the first touch electrode 1128, which may be a metal electrode, and the gate electrode 318 may be disposed on the same layer.

[0132] The second touch electrode 1129 and the first electrode 333 may be arranged on the same layer. The second touch electrode 1129 may include the same material as the first electrode 333 in the same process as the first electrode 333. In another exemplary embodiment, the second touch electrode 1129 and the second electrode 334 may be arranged on the same layer and may include the same material in the same process.

[0133] In another exemplary embodiment, the first touch electrode 1128 may include a separate metal layer (e.g., a transparent conductive layer), and the second touch electrode 1129 and at least one of the gate electrode 318, the source electrode 320, the drain electrode 321, the first electrode 333 and the second electrode 334 may be arranged on the same layer.

[0134] Fig.13 is a cross-sectional view of a display device 1300 according to another exemplary embodiment.

[0135] Reference Fig.13 , a first functional layer 1301 encapsulating the sub-pixel area 301 may be arranged on the display substrate 311. According to an exemplary embodiment, the first functional layer 1301 may be an encapsulation layer, but it is not limited thereto. A second functional layer 1303 may be arranged above the first functional layer 1301 with a medium layer 1302 therebetween. The second functional layer 1303 may be a window cover, but it is not limited thereto.

[0136] The medium layer 1302 may receive pressure caused by a user's contact and may be a material having a buffering function. According to an exemplary embodiment, the medium layer 1302 may be an air layer, but is not limited thereto. A spacer 1304 maintaining a cell gap may be disposed between the first functional layer 1301 and the second functional layer 1303. A sealant 1305 may be applied to edges where the first functional layer 1301 and the second functional layer 1303 may face each other.

[0137] The sub-pixel region 301 may include a first region 302 where an LED 325 is placed and a second region 303 where a touch sensor electrode 326 is placed. The touch sensor electrode 326 and the first electrode 333 may be arranged on the same layer. In another exemplary embodiment, the touch sensor electrode 326 and the second electrode 334 may be arranged on the same layer.

[0138] The touch sensor electrode 326 may correspond to an electrode that senses capacitance changes on an X-axis and a Y-axis intersecting the X-axis. A force sensing electrode 1306 that forms capacitance on a Z-axis perpendicular to the X-axis and the Y-axis with the touch sensor electrode 326 and senses pressure according to capacitance changes may also be disposed on the display substrate 311. According to an exemplary embodiment, the force sensing electrode 1306 may be disposed on one surface of the second functional layer 1303 facing the first functional layer 1301.

[0139] Since capacitance is generated between the touch sensor electrode 326 and the force sensing electrode 1306, it is possible to sense capacitance changes on the Z-axis. In detail, when the input tool is pressed, the applied force can be sensed according to capacitance changes between the touch sensor electrode 326 and the force sensing electrode 1306.

[0140] The force sensing electrode 1306 may be patterned in a specific pattern on the second functional layer 1303. In detail, the force sensing electrode 1306 may be patterned in a plurality of patterns having mutually different areas to sense each position according to the force applied to the display device 1300. In another exemplary embodiment, the force sensing electrode 1306 may be completely disposed on the second functional layer 1303 to sense only the force.

[0141] In an exemplary embodiment, the force sensing electrode 1306 may include a conductive polymer material such as poly(3,4-ethylenedioxythiophene) ("PEDOT"), polyacetylene, and polypyrrole. Since the force sensing electrode 1306 has a unit area resistance greater than 100 times that of a transparent conductive layer such as an ITO layer while maintaining conductivity, the force sensing electrode 1306 may be applied to an electrode of a TSP.

[0142] A connector 1307 electrically connected to the force sensing electrode 1306 may be disposed between the first functional layer 1301 and the second functional layer 1303. The connector 1307 may be connected to a pad on the display substrate 311 via a contact hole 1308 defined in the first functional layer 1301 and may transfer a force sensing signal to an external device.

[0143] Likewise, a structure in which positions on the X-axis and the Y-axis are sensed using the touch sensor electrodes 326 and force on the Z-axis is sensed using the force sensing electrodes 1306 may be applied to various display devices.

[0144] Reference Fig.14 , the display device 1400 may be an organic light emitting display device. In detail, a display unit 1402 including a TFT and an organic LED may be arranged on a display substrate 1401, a touch sensor electrode 1403 may be arranged on the display unit 1402, and a first functional layer 1404 corresponding to an encapsulation may be arranged on the touch sensor electrode 1403. A second functional layer 1406 corresponding to a window cover may be arranged above the first functional layer 1404 with a medium layer 1405 therebetween. A force sensing electrode 1407 may be arranged on one surface of the second functional layer 1406 facing the first functional layer 1404.

[0145] The touch sensor electrodes 1403 may be connected to pads on the display substrate 1401 via contact holes 1408 defined in the display unit 1402 and may transmit sensing signals to an external device. In addition, the force sensing electrodes 1407 may be connected to the connector 1409 and may transmit force sensing signals to an external device.

[0146] The above structure can sense the applied force based on the change in capacitance between the touch sensor electrode 1403 and the force sensing electrode 1407 .

[0147] Reference Fig.15 , the display device 1500 may be an organic light emitting display device. In detail, a display unit 1502 including a TFT and an organic LED may be arranged on a display substrate 1501. Fig.14 1502. A first functional layer 1504 corresponding to an encapsulation may be disposed on the display unit 1502. A touch sensor electrode 1503 may be disposed on the first functional layer 1504. A second functional layer 1506 corresponding to a window cover may be disposed over the touch sensor electrode 1503 with the medium layer 1505 therebetween. A force sensing electrode 1507 may be disposed on one surface of the second functional layer 1506. The force sensing electrode 1507 may be connected to a connector 1509 and may transmit a force sensing signal to an external device.

[0148] The above structure can sense the applied force based on the change in capacitance between the touch sensor electrode 1503 and the force sensing electrode 1507 .

[0149] Reference Fig.16 , the display device 1600 may be a liquid crystal display device. In detail, a display unit 1602 including a liquid crystal display element may be arranged on a display substrate 1601, and a touch sensor electrode 1603 may be arranged on the display unit 1602. A functional layer 1604 corresponding to a color filter substrate may be arranged on the touch sensor electrode 1603, and a force sensing electrode 1605 may be arranged on the functional layer 1604. The force sensing electrode 1605 may be connected to a connector 1606 and may transmit a force sensing signal to an external device.

[0150] The above structure can sense the applied force via the capacitance change between the touch sensor electrode 1603 and the force sensing electrode 1605.

[0151] Reference Fig.17 , the display device 1700 may be a liquid crystal display device. In detail, a display unit 1702 including a liquid crystal display element may be disposed on a display substrate 1701. Fig.16 1704, a first functional layer 1704 corresponding to a color filter substrate may be disposed on the display unit 1702, and a touch sensor electrode 1703 may be disposed on the first functional layer 1704. A second functional layer 1708 such as a window cover may be disposed over the touch sensor electrode 1703 with a medium layer 1707 therebetween. A force sensing electrode 1705 may be disposed on one surface of the second functional layer 1708. The force sensing electrode 1705 may be connected to a connector 1706 and may transmit a force sensing signal to an external device.

[0152] The above structure can sense the applied force via the capacitance change between the touch sensor electrode 1703 and the force sensing electrode 1705.

[0153] Reference Fig.18 , the display device 1800 may include a display substrate 1801. The display unit 1802 may be arranged on the display substrate 1801. The display unit 1802 may include a micro LED. The touch sensor electrode 1803 may be arranged on the display unit 1802. In another exemplary embodiment, the display unit 1802 may include an LCD element or an organic LED. In another exemplary embodiment, a functional layer such as a color filter substrate or an encapsulation layer may be arranged on the display unit 1802.

[0154] A functional layer 1809 corresponding to the window cover may be disposed over the touch sensor electrodes 1803 with the intermediary layer 1810 therebetween. A force sensing electrode 1805 may be disposed on the functional layer 1809 facing the touch sensor electrodes 1803.

[0155] According to an exemplary embodiment, the medium layer 1810 may include an air layer. A refractive index matching layer ("RIML") 1806 may be disposed on at least one surface of the force sensing electrode 1805 to improve reflectivity affected by the air layer. The RIML 1806 may include a first RIML 1807 disposed on one surface of the force sensing electrode 1805 facing the touch sensor electrode 1803 and a second RIML 1808 disposed on the other surface of the force sensing electrode 1805 facing the functional layer 1809.

[0156] In an exemplary embodiment, for example, RIML 1806 may include silicon oxide (SiO 2 ) or silicon nitride (SiN x ). The refractive index of the first RIML 1807 and the refractive index of the second RIML 1808 may be smaller than the refractive index of the force sensing electrode 1805. The RIML 1806 having a low refractive index and the force sensing electrode 1805 having a high refractive index are alternately arranged on the medium layer 1810. Therefore, the refractive index of the display device 1800 may be improved, and the poor transmittance of the touch sensor electrode 1803 may be improved.

[0157] Fig.19 is a cross-sectional view of a single sub-pixel according to another exemplary embodiment.

[0158] Reference Fig.19 , the display device 1900 may include a plurality of sub-pixel regions 301. The sub-pixel region 301 may include a first region 302 where an LED 325 is placed and a second region 303 where a touch sensor electrode 1926 is placed. The touch sensor electrode 1926 may extend to an adjacent sub-pixel region 301.

[0159] According to an exemplary embodiment, the touch sensor electrode 1926 may include a first touch electrode 1927 and a second touch electrode 1928. The first touch electrode 1927 and the first electrode 333 may be arranged on the same layer. In another exemplary embodiment, the first touch electrode 1927 and at least one of the gate electrode 318, the source electrode 320, and the drain electrode 321 arranged on the TFT may be arranged on the same layer.

[0160] The first bank 1903 may be disposed on the outer circumference of the sub-pixel region 301. The LED 325 and the first touch electrode 1927 may be disposed in the opening 324 from which a portion of the first bank 1903 is removed.

[0161] The second dam 1904 may be further disposed on the first dam 1903. The second dam 1904 may embed the LED 325 and the first touch electrode 1927. The second dam 1904 may planarize the top surface of the LED 325.

[0162] The second electrode 334 may be electrically connected to the LED 325 on the second bank 1904. The second touch electrode 1928 and the second electrode 334 may be disposed on the same layer. The touch sensor electrode 1926 may correspond to an electrode that senses a capacitance change between the first touch electrode 1927 and the second touch electrode 1928.

[0163] The color filter 1901 may be disposed over the LED 325. The color filter 1901 may convert light emitted from the LED 325 or increase color purity.

[0164] The black matrix 1902 may be disposed on the periphery of the color filter 1901. The black matrix 1902 may surround the periphery of the LED 325. In another exemplary embodiment, the black matrix 1902 may be disposed between adjacent sub-pixel areas 301. Since the color filter 1901 and the black matrix 1902 are disposed, a planarization plate is not required and reflection of external light may be improved.

[0165] The encapsulation layer 1905 may be disposed on the outermost circumference of the display substrate 311 to protect each element disposed on the display substrate 311. The encapsulation layer 1905 may include a stack of at least one inorganic material and at least one organic material. In another exemplary embodiment, the encapsulation layer 1905 may include an inorganic material.

[0166] Fig. 20 is a cross-sectional view of a single sub-pixel according to another exemplary embodiment.

[0167] Reference Fig. 20 , the display device 2000 may include a plurality of sub-pixel regions 301. The sub-pixel region 301 may include a first region 302 where an LED 325 is placed and a second region 303 where a touch sensor electrode 2026 is placed. The touch sensor electrode 2026 extends to an adjacent sub-pixel region 301. According to an exemplary embodiment, the touch sensor electrode 2026 may include a first touch electrode 2027 and a second touch electrode 2028. The first touch electrode 2027 and the first electrode 333 may be arranged on the same layer. In another exemplary embodiment, the first touch electrode 2027 and at least one of the gate electrode 318, the source electrode 320, and the drain electrode 321 provided in the TFT may be arranged on the same layer.

[0168] The first dam 2003 may be disposed on the outer circumference of the sub-pixel region 301. The first dam 2003 may extend to an adjacent sub-pixel region 301. The LED 325 and the first touch electrode 2027 may be disposed in the opening 324 provided by removing a portion of the first dam 2003.

[0169] The second dam 2004 may also be disposed on the first dam 2003. The second dam 2004 may embed the LED 325 and the first touch electrode 2027. The second dam 2004 may be independently disposed on each sub-pixel region 301 so that the LED 325 is embedded.

[0170] According to an exemplary embodiment, the second dam 2004 may extend from the first area 302 where the LED 325 is placed to the second area 303 where the touch sensor electrode 2026 is placed. In another exemplary embodiment, the second dam 2004 may be disposed only on the first area 302 including the LED 325.

[0171] According to an exemplary embodiment, the second dam 2004 may include a scattering material or a color conversion material.

[0172] The second electrode 334 may be electrically connected to the LED 325 on the second bank 2004. The second touch electrode 2028 and the second electrode 334 may be disposed on the same layer. The touch sensor electrode 2026 may correspond to an electrode that senses a capacitance change between the first touch electrode 2027 and the second touch electrode 2028.

[0173] The color filter 2001 may be disposed above the LED 325. The color filter 2001 may convert light emitted from the LED 325 or increase color purity.

[0174] The black matrix 2002 may be disposed on the periphery of the color filter 2001. According to an exemplary embodiment, the black matrix 2002 may surround the periphery of the LED 325. In another exemplary embodiment, the black matrix 2002 may be disposed between adjacent sub-pixel areas 301.

[0175] The encapsulation layer 2005 may be disposed on the outermost circumference of the display substrate 311 to protect each element disposed on the display substrate 311. The encapsulation layer 2005 may include a stacked layer of at least one inorganic material and at least one organic material.

[0176] It should be understood that the exemplary embodiments described herein should be understood in a descriptive sense only and not for limiting purposes. The features in each exemplary embodiment or the description of the exemplary embodiment should generally be considered applicable to other similar features or exemplary embodiments in other exemplary embodiments.

[0177] Although one or more exemplary embodiments have been described with reference to the drawings, people skilled in the art will understand that various changes in form and details may be made without departing from the spirit and scope defined by the claims.

Claims

1. An organic light emitting diode display, comprising: substrate; a buffer layer, located on the substrate; A plurality of thin film transistors are located on the buffer layer, wherein the thin film transistors include an active layer, a gate electrode, a source electrode and a drain electrode; A plurality of pixels, including a plurality of light-emitting layers located between a lower electrode and an upper electrode on the substrate; An encapsulation layer, located on the plurality of pixels; A bank layer, located on the substrate, wherein the bank layer partially exposes the lower electrode; as well as a touch sensor unit including a plurality of touch sensor electrodes and a plurality of touch sensor wirings located on the substrate, a dummy pattern, located between the light emitting layer and the touch sensor electrode in a plan view and in a floating state; wherein the source electrode, the drain electrode and the touch sensor electrode are formed of the same material, and Wherein, the encapsulation layer includes at least one inorganic layer and at least one organic layer.

2. The organic light emitting diode display according to claim 1, in, The touch sensor electrodes are disposed between the plurality of light emitting layers.

3. A display device, comprising: a substrate, a plurality of sub-pixel regions being defined in the substrate; a light emitting diode, located on the substrate; touch sensor electrodes, located on the substrate; Touch sensor wirings, electrically connected to the touch sensor electrodes, respectively, and exchanging electrical signals of the touch sensor electrodes with an external device; a dummy pattern, located between the light emitting diode and the touch sensor electrode in a plan view and in a floating state; A bank-shaped member, separating the plurality of sub-pixel regions; as well as a color filter, located on the light emitting diode, Wherein, the touch sensor electrodes are formed of metal.

4. The display device of claim 3, further comprising a color conversion material located on the light emitting diode. The display device according to claim 3 , further comprising a scattering material located on the light emitting diode. 6 . The display device of claim 3 , further comprising a black matrix on an outer periphery of the color filter. 7 . The display device according to claim 3 , further comprising a light reflecting material on the bank-shaped member.

8. A display device, comprising: A substrate including a plurality of sub-pixel regions; A plurality of thin film transistors are located on the substrate, wherein the thin film transistors include an active layer, a gate electrode, a source electrode and a drain electrode; a plurality of light emitting diodes, located above the substrate; A touch sensor electrode located above the substrate; Touch sensor wiring connected to the touch sensor electrodes; a dummy pattern, located between the light emitting diode and the touch sensor electrode in a plan view and in a floating state; a bank-shaped member, separating the plurality of sub-pixel regions, Wherein, the light emitting diode is arranged in the sub-pixel area, Wherein, the touch sensor electrodes are arranged between the light emitting diodes, and The source electrode, the drain electrode and the touch sensor electrode are formed of the same material.

9. The display device of claim 8, further comprising a color filter and a color conversion material located on the light emitting diode.

10. The display device according to claim 8, further comprising a scattering material located on the light emitting diode.

11. A light emitting diode device, comprising: a substrate, a plurality of sub-pixel regions being defined in the substrate; a light emitting diode structure, located on the substrate; A plurality of thin film transistors are located on the substrate, wherein the thin film transistors include an active layer, a gate electrode, a source electrode and a drain electrode; A bank-shaped member, separating the plurality of sub-pixel regions; a touch sensor comprising a first sensor electrode and a second sensor electrode located on the substrate; Connecting wiring, located on the substrate; a dummy pattern, located on the substrate and between the light emitting diode structure and the touch sensor in a plan view; A color filter, located on the light emitting diode structure; as well as A black matrix, located on the periphery of the color filter, The light emitting diode structure includes: a first electrode; a light emitting diode connected to the first electrode; and a second electrode connected to the light emitting diode. wherein a pair of first sensor electrodes are electrically connected to each other via the connection wiring, wherein the connection wiring, the source electrode and the drain electrode are formed of the same material, wherein the touch sensor senses a capacitance change generated between one of the first sensor electrodes and one of the second sensor electrodes, wherein the first sensor electrode and the second sensor electrode are arranged on the same layer, wherein the first sensor electrode, the second sensor electrode and the dummy pattern are formed of the same material, wherein the dummy pattern is in a floating state, wherein the touch sensor, the connection wiring, the source electrode, the drain electrode and the dummy pattern include metal materials, wherein the bank-shaped member partially exposes the first electrode, wherein the dike-shaped member is opaque, and Wherein, the black matrix covers the top surface of the touch sensor.

12. The light emitting diode device according to claim 11, wherein: The first electrode and the touch sensor are formed of the same material.

13. The light emitting diode device according to claim 11, wherein: The first electrode and the touch sensor are located on the same layer.

14. The light emitting diode device according to claim 11, wherein: The second electrode and the touch sensor are formed of the same material.

15. The light emitting diode device according to claim 11, wherein: The second electrode and the touch sensor are located on the same layer.

16. The light emitting diode device according to claim 11, wherein: The source electrode, the drain electrode, and the touch sensor are formed of the same material.

17. The light emitting diode device of claim 11, further comprising a scattering material on the light emitting diode.

18. The light emitting diode device of claim 11, further comprising a light reflecting material on the bank.

19. The LED device of claim 11, further comprising a color conversion material on the LED structure.

20. A light emitting diode device, comprising: Flexible polymer substrate; a buffer layer, located on the flexible polymer substrate and completely covering the top surface of the flexible polymer substrate; A plurality of thin film transistors are located on the buffer layer, wherein the thin film transistors include an active layer, a gate electrode, a source electrode and a drain electrode; A light emitting diode structure is disposed on the plurality of thin film transistors; a touch sensor comprising a first sensor electrode and a second sensor electrode on the flexible polymer substrate; A connection wiring, located on the flexible polymer substrate, comprising a plurality of connection wirings; a dummy pattern disposed on the flexible polymer substrate and located between the light emitting diode structure and the touch sensor in a plan view; as well as a bank layer, located on the flexible polymer substrate, The light emitting diode structure includes: a first electrode; and a light emitting diode connected to the first electrode. Wherein, the light emitting diode comprises a plurality of light emitting diodes, wherein the plurality of light emitting diodes and the touch sensor are not overlapped in a plan view, wherein the bank layer is disposed on the first electrode and partially exposes the first electrode, wherein a pair of first sensor electrodes are electrically connected to each other via the connection wiring, wherein the connection wiring and the pair of first sensor electrodes are arranged on different layers, wherein the connection wiring, the source electrode and the drain electrode are formed of the same material, wherein the touch sensor senses a capacitance change generated between one of the first sensor electrodes and one of the second sensor electrodes, wherein the first sensor electrode, the second sensor electrode and the dummy pattern are arranged on the same layer, wherein the dummy pattern is in a floating state, wherein the touch sensor, the connection wiring, the source electrode, the drain electrode and the dummy pattern include metal materials, Part of the plurality of first sensor electrodes is disposed between adjacent light emitting diodes among the plurality of light emitting diodes. Part of the plurality of second sensor electrodes is disposed between adjacent light emitting diodes among the plurality of light emitting diodes. wherein, in a plan view, each of the first sensor electrodes and each of the second sensor electrodes at least partially surrounds the plurality of light emitting diodes, and Each of the first sensor electrodes and each of the second sensor electrodes are arranged to pass through at least the adjacent light emitting diodes among the plurality of light emitting diodes.

21. The light emitting diode device according to claim 20, wherein: The connection wiring, the dummy pattern, and the touch sensor are formed of the same material.

22. The light emitting diode device according to claim 20, wherein: The connection wiring, the dummy pattern, and the touch sensor are located on the same layer.

23. The light emitting diode device according to claim 20, wherein: The source electrode, the drain electrode, the connection wiring, the dummy pattern, and the touch sensor are formed of the same material.

24. A light emitting diode device, comprising: A flexible polymer substrate including a pixel area and a touch area; a buffer layer, located on the flexible polymer substrate and completely covering the top surface of the flexible polymer substrate; a light emitting diode structure disposed in the pixel region on the flexible polymer substrate; A plurality of thin film transistors are located on the buffer layer, wherein the thin film transistors include an active layer, a gate electrode, a source electrode and a drain electrode; A touch sensor comprising a first sensor electrode and a second sensor electrode disposed in the touch region on the flexible polymer substrate; a connection wiring, located on the flexible polymer substrate in the touch area; as well as a dummy pattern, arranged in the touch area on the flexible polymer substrate, and located between the light emitting diode structure and the touch sensor in a plan view, Wherein, the light emitting diode structure comprises: a first electrode; a light emitting diode connected to the first electrode; a second electrode connected to the light emitting diode; and a bank layer, located on the first electrode, wherein the bank layer partially exposes the first electrode, wherein the light emitting diode and the touch sensor are not overlapped in a plan view, wherein a pair of first sensor electrodes are electrically connected to each other via the connection wiring, wherein the connection wiring, the source electrode and the drain electrode are formed of the same material, wherein the touch sensor senses a capacitance change generated between one of the first sensor electrodes and one of the second sensor electrodes, wherein the first sensor electrode, the second sensor electrode and the dummy pattern are arranged on the same layer, wherein the dummy pattern is in a floating state, wherein the touch sensor, the connection wiring, the source electrode, the drain electrode, and the dummy pattern include metal materials, and In a plan view, the connection wiring and at least one of the first sensor electrode and the second sensor electrode are in a grid shape.

25. A light emitting diode device, comprising: substrate; A plurality of thin film transistors are located on the substrate; A display unit including a plurality of light emitting diodes located on the substrate, each light emitting diode being electrically connected to one of the plurality of thin film transistors; as well as A touch sensor comprising a first sensor electrode and a second sensor electrode spaced apart from the first sensor electrode in a plan view, wherein one of the first sensor electrodes includes a first portion and a second portion, the first portion extending mainly along a first direction in a plan view, the second portion extending mainly along a second direction intersecting the first direction in a plan view, and the first portion and the second portion directly contact each other at a point where the first direction and the second direction intersect, wherein one of the second sensor electrodes comprises a third portion and a fourth portion, the third portion extending mainly along the first direction in a plan view, and the fourth portion extending mainly along the second direction in a plan view, wherein the second portion of the one first sensor electrode is disposed between a pair of light emitting diodes among the plurality of light emitting diodes that are directly adjacent to each other in the first direction in a plan view, wherein one of the pair of light emitting diodes comprises a first side and a second side opposite to the first side, the first side facing the second portion of the one first sensor electrode in a plan view, and the second side facing the fourth portion of the one second sensor electrode in a plan view, and Wherein, the light emitting diode device further includes a dummy pattern, and the dummy pattern is in a floating state and is arranged on the substrate.

26. The light emitting diode device according to claim 25, wherein: The one of the pair of light emitting diodes is directly adjacent to the fourth portion of the one second sensor electrode.

27. The light emitting diode device according to claim 25, wherein: The third portion and the fourth portion of the one second sensor electrode are in direct contact with each other at a point where the first direction and the second direction intersect.

28. The light emitting diode device according to claim 25, further comprising connecting wiring, in, A pair of the first sensor electrodes are electrically connected to each other via one of the connection wirings, and The touch sensor senses a capacitance change generated between the first sensor electrode and the second sensor electrode.

29. The light emitting diode device according to claim 28, wherein The first sensor electrode and the second sensor electrode are arranged in the same layer, and The connection wiring is arranged on a different layer from the first sensor electrode and the second sensor electrode.

30. The light emitting diode device according to claim 28, wherein: The thin film transistor includes an active layer, a gate electrode, a source electrode and a drain electrode, and The first sensor electrode, the second sensor electrode, the connection wiring, the source electrode, and the drain electrode include metal materials.

31. The light emitting diode device of claim 25, further comprising a pad on the substrate and electrically connected to the touch sensor, in, The touch sensor is electrically connected to the pad via a contact hole defined in the display unit.

32. The light emitting diode device of claim 25, wherein: The first sensor electrodes, the second sensor electrodes, and the dummy patterns are arranged on the same layer.

33. The light emitting diode device according to claim 25, wherein: At least one of the plurality of light emitting diodes comprises an organic light emitting diode.

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