KR20240025084A - Display device and touch input system including the same - Google Patents

Abstract

Regarding a display device and a touch input system including the same, the display device according to an embodiment includes a display unit including a plurality of light-emitting areas, a plurality of touch electrodes disposed between the plurality of light-emitting areas to detect a touch, and a plurality of touch electrodes. It includes a plurality of grid patterns separated from electrodes in a preset shape or formed integrally with the plurality of touch electrodes, and a plurality of code patterns formed in a preset code shape on partial front areas corresponding to the plurality of touch electrodes, The grid patterns are patterns that become grid reference points of grid reference lines formed in the touch input device, and are formed at positions corresponding to the grid reference points.

Description

Display device and touch input system including same {DISPLAY DEVICE AND TOUCH INPUT SYSTEM INCLUDING THE SAME}

The present invention relates to a display device and a touch input system including the same.

As the information society develops, the demand for display devices for displaying images is increasing in various forms. For example, display devices are applied to various electronic devices such as smartphones, digital cameras, laptop computers, navigation systems, and smart televisions. The display device may be a flat panel display device such as a liquid crystal display device, a field emission display device, or an organic light emitting display device. Among these flat display devices, a light emitting display device includes a light emitting element in which each pixel of the display panel can emit light on its own, allowing images to be displayed without a backlight unit providing light to the display panel.

Recent display devices support touch input using a part of the user's body (eg, finger) and touch input using an electronic pen. By detecting touch input using an electronic pen, the display device can detect touch input more precisely than when only using touch input using a part of the user's body.

The problem to be solved by the present invention is to provide a display device that can more accurately perform touch input using grid patterns and code patterns of a display panel, and a touch input system including the same.

The problems of the present invention are not limited to the problems mentioned above, and other technical problems not mentioned will be clearly understood by those skilled in the art from the description below.

A display device according to an embodiment to solve the above problem includes a display unit including a plurality of light-emitting areas, a plurality of touch electrodes disposed between the plurality of light-emitting areas to detect a touch, and separated from the plurality of touch electrodes in a preset shape. a plurality of grid patterns formed integrally with the plurality of touch electrodes, and a plurality of code patterns formed in a preset code shape on partial front areas corresponding to the plurality of touch electrodes, wherein the plurality of grid patterns are Patterns that become grid reference points of grid reference lines formed in an input device may be formed at positions corresponding to the grid reference points.

The plurality of grid patterns may be formed in an island shape separated from the plurality of touch electrodes at the positions of the grid reference points.

The plurality of grid patterns are formed so that the width or area in at least one of the horizontal, vertical, and diagonal directions on a plane is wider than the width or area of each of the plurality of touch electrodes, so that the light reflectance is higher than that of the surrounding touch electrodes. It can be formed as follows.

The plurality of grid patterns are each formed in a polygonal, circular, or elliptical shape between adjacent light-emitting areas, or have a closed loop of one of a rectangle, square, circle, or diamond surrounding at least one light-emitting area. It may be formed into a shape or may be formed into a mesh structure between and surrounding a plurality of light emitting areas.

The plurality of code patterns may include a light blocking member that covers some of the plurality of touch electrodes with a preset area to form a preset planar code shape.

The plurality of code patterns may be formed between the plurality of grid patterns at preset intervals so as not to overlap each of the plurality of grid patterns.

The plurality of code patterns may be formed in a closed loop shape of a rectangle, square, circle, or diamond surrounding at least one light-emitting area, or may be formed in a mesh structure between and around a plurality of light-emitting areas. .

The plurality of code patterns may be formed to have a width wider than the front and side widths of the plurality of touch electrodes.

A touch input system according to an embodiment for solving the above problem includes a display device that displays an image, and a touch input device that inputs a touch to the display device. The display device includes a display unit including a plurality of light-emitting areas, a plurality of touch electrodes disposed between the plurality of light-emitting areas to detect a touch, and separated from the plurality of touch electrodes in a preset shape or integrated with the plurality of touch electrodes. and a plurality of grid patterns formed in a preset code shape on some front areas corresponding to the plurality of touch electrodes, wherein the plurality of grid patterns are used to calculate touch coordinates in the touch input device. Patterns that become grid reference points of grid reference lines formed for the grid may be formed at positions corresponding to the grid reference points.

The plurality of grid patterns may be formed in an island shape separated from the plurality of touch electrodes at the positions of the grid reference points.

The plurality of grid patterns are formed so that the width or area in at least one of the horizontal, vertical, and diagonal directions on a plane is wider than the width or area of each of the plurality of touch electrodes, so that the light reflectance is higher than that of the surrounding touch electrodes. It can be formed as follows.

The plurality of grid patterns are each formed in a polygonal, circular, or elliptical shape between adjacent light-emitting areas, or have a closed loop of one of a rectangle, square, circle, or diamond surrounding at least one light-emitting area. It may be formed into a shape or may be formed into a mesh structure between and surrounding a plurality of light emitting areas.

The plurality of code patterns may include a light blocking member that covers some of the plurality of touch electrodes with a preset area to form a preset planar code shape.

The plurality of code patterns may be formed between the plurality of grid patterns at preset intervals so as not to overlap each of the plurality of grid patterns.

The plurality of code patterns may be formed in a closed loop shape of a rectangle, square, circle, or diamond surrounding at least one light-emitting area, or may be formed in a mesh structure between and around a plurality of light-emitting areas. .

The plurality of code patterns may be formed to have a width wider than the front and side widths of the plurality of touch electrodes.

The touch input device includes a code detector that detects grid pattern shape data and code pattern shape data by detecting the plurality of grid patterns and the plurality of code patterns, and the shape and arrangement of the plurality of grid patterns and the plurality of code patterns. It may include a code processor that identifies each structure and extracts coordinate data.

The code detector generates the grid pattern shape data according to the amount of reflected light reflected from the plurality of grid patterns, the reflection shape, and the arrangement position, and the code according to the reflection shape reflected from the plurality of code patterns and the arrangement position. Pattern shape data can be generated and output.

The code processor may extract and form the plurality of grid reference lines by connecting the arrangement positions of the plurality of grid patterns with a straight line based on the arrangement positions of the plurality of grid patterns included in the grid pattern shape data.

The code processor may match and compare the plurality of grid reference lines with the code pattern shape data, extract touch position coordinates and coordinate data according to the comparison result, and transmit the touch position coordinates and coordinate data to the display device. there is.

According to the display device according to embodiments of the present invention and the touch input system including the same, grid patterns and code patterns can be formed on the display panel without adding a separate work process such as using an additional mask, thereby reducing manufacturing costs. can save.

In addition, according to the display device and the touch input system including the same according to embodiments of the present invention, touch coordinate data of the touch input device is more accurately generated without complex calculations and corrections using the grid patterns and code patterns of the display panel. And, touch input of the touch input device can be performed. In particular, touch input functions can be performed using more accurate input coordinates without errors due to tilt, etc., and power consumption can be reduced and the driving process can be simplified.

Effects according to the embodiments are not limited to the contents exemplified above, and further various effects are included in the present specification.

1 is a configuration diagram showing a touch input system according to an embodiment of the present invention.
FIG. 2 is a block diagram specifically showing the touch input device and display device shown in FIG. 1.
FIG. 3 is a perspective view specifically showing the configuration of the display device shown in FIG. 2.
FIG. 4 is a cross-sectional view specifically showing the configuration of the display device shown in FIG. 2.
FIG. 5 is a plan view illustrating a display unit of a display device according to an exemplary embodiment.
Figure 6 is a plan view showing a touch sensing unit of a display device according to an embodiment.
Figure 7 is an enlarged view specifically showing area A1 of Figure 6.
FIG. 8 is an enlarged view illustrating in detail the structure of the connection portion of the connection electrode and the sensing electrodes of FIG. 7.
FIG. 9 is an enlarged view showing the arrangement structure of grid patterns and code patterns formed in area B1 of FIG. 6 according to an embodiment.
Figure 10 is an enlarged view specifically showing the C1 area of Figure 9.
Figure 11 is a cross-sectional view specifically showing the section II' of Figure 10.
FIG. 12 is a diagram showing the detected shape and arrangement position of the grid patterns shown in FIG. 9.
FIG. 13 is a diagram showing the detected shape and arrangement position of the code patterns shown in FIG. 9.
FIG. 14 is a diagram for explaining a method of forming a plurality of grid reference lines according to the arrangement positions of the grid patterns shown in FIG. 12.
FIG. 15 is a diagram for explaining a method of detecting touch position coordinates according to a comparison result of the arrangement positions of a plurality of grid reference lines and code patterns shown in FIG. 14.
FIG. 16 is an enlarged view showing the arrangement structure of grid patterns and code patterns formed in area B1 of FIG. 6 according to another embodiment.
FIG. 17 is an enlarged view specifically showing the C1 region of FIG. 16.
FIG. 18 is a diagram showing the detected shape and arrangement position of the grid patterns shown in FIG. 16.
FIG. 19 is a diagram showing the detected shape and arrangement position of the code patterns shown in FIG. 16.
FIG. 20 is a diagram for explaining a method of forming a plurality of grid reference lines according to the arrangement positions of the grid patterns shown in FIG. 18.
FIG. 21 is a diagram for explaining a method of detecting touch position coordinates according to a comparison result of the arrangement positions of a plurality of grid reference lines and code patterns shown in FIGS. 18 and 19.
22 and 23 are perspective views showing a display device according to another embodiment of the present invention.
24 and 25 are perspective views showing a display device according to another embodiment of the present invention.

The advantages and features of the present invention and methods for achieving them will become clear by referring to the embodiments described in detail below along with the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below and will be implemented in various different forms. The present embodiments only serve to ensure that the disclosure of the present invention is complete and that common knowledge in the technical field to which the present invention pertains is not limited. It is provided to fully inform those who have the scope of the invention, and the present invention is only defined by the scope of the claims.

When an element or layer is referred to as “on” another element or layer, it includes instances where the element or layer is directly on top of or intervening with the other element. Like reference numerals refer to like elements throughout the specification. The shape, size, ratio, angle, number, etc. disclosed in the drawings for explaining the embodiments are illustrative and the present invention is not limited to the details shown.

Although first, second, etc. are used to describe various components, these components are of course not limited by these terms. These terms are merely used to distinguish one component from another. Therefore, it goes without saying that the first component mentioned below may also be a second component within the technical spirit of the present invention.

Each feature of the various embodiments of the present invention can be combined or combined with each other, partially or entirely, and various technological interconnections and operations are possible, and each embodiment can be implemented independently of each other or together in a related relationship. It may be possible.

Hereinafter, specific embodiments will be described with reference to the attached drawings.

1 is a configuration diagram showing a touch input system according to an embodiment of the present invention. FIG. 2 is a block diagram specifically showing the touch input device and display device shown in FIG. 1.

1 and 2, the display device 10 may be used in a mobile phone, a smart phone, a tablet personal computer (PC), a mobile communication terminal, an electronic notebook, an e-book, or a portable portable media (PMP) device. It can be applied to portable electronic devices such as Multimedia Player, navigation, and UMPC (Ultra Mobile PC). For example, the display device 10 may be applied as a display unit for a television, laptop, monitor, billboard, or Internet of Things (IOT). For another example, the display device 10 can be applied to wearable devices such as smart watches, watch phones, glasses-type displays, and head mounted displays (HMDs). there is.

The display device 10 includes a display panel 100, a display driver 200, a touch driver 400, a main processor 500, and a communication unit 600. And, the touch input device 20 includes a code detection unit 21, a piezoelectric sensor 22, a code processor 23, a communication module 24, and a memory 25.

The display device 10 uses the touch input device 20 as a touch input mechanism. The display panel 100 of the display device 10 may include a display unit (DU) that displays an image, and a touch sensing unit (TSU) that detects human body parts such as fingers and the touch input device 20. .

The display unit DU of the display panel 100 includes a plurality of pixels and can display an image through the plurality of pixels. The touch sensing unit (TSU) of the display panel 100 may be formed on the front portion of the display panel 100.

The touch sensing unit (TSU) includes a plurality of touch electrodes and can sense the user's touch using a capacitive method. In addition, when forming a plurality of touch electrodes, the touch sensing unit (TSU) includes a plurality of grid patterns formed of the same material through the same process as the plurality of touch electrodes, and a plurality of grid patterns formed by patterning on some of the touch electrodes of the plurality of touch electrodes. It further includes code patterns. These grid patterns and code patterns of the touch sensing unit (TSU) are sensed by the touch input device 20 when the touch input device 20 detects infrared light reflection.

The plurality of grid patterns are patterns that serve as grid reference points of grid reference lines when forming a plurality of grid reference lines for calculating position coordinates in the touch input device 20, and are formed integrally with a plurality of touch electrodes or from a plurality of touch electrodes. Can be formed separately.

A plurality of grid patterns may be formed at preset grid reference point positions to form a plurality of grid reference lines. The plurality of grid patterns may be formed to protrude in at least one direction from the plurality of touch electrodes at each grid reference point location. Alternatively, the plurality of grid patterns may be separated from the plurality of touch electrodes at each reference point location and may be formed in a shape having a preset circular, oval, or polygonal area. Each grid pattern may have a width or area greater than the width of each touch electrode in at least one of the horizontal, vertical, and diagonal directions on the plane. Accordingly, the light reflectance of each grid pattern can be formed to be higher than that of surrounding touch electrodes.

Code patterns in the form of flat codes are formed and arranged at preset intervals on a portion of the front surface of some of the plurality of touch electrodes. The code patterns of the display panel 100 are made of a light blocking member that covers some of the plurality of touch electrodes to a predetermined area to form a preset planar code shape. Code patterns are sensed by the touch input device 20 according to the shape of the planar code of the light blocking member and the size of the planar code.

Meanwhile, the code patterns may not be formed directly on the front surface of the touch patterns, but may be formed on a separate transparent film and placed on the front surface of the touch sensing unit (TSU) together with the transparent film. In this case, code patterns may be formed to correspond to the placement positions of the touch electrodes on the transparent film. The formation structure of the code patterns disposed on the top or front of the touch sensing unit (TSU) can be applied in various structures and is not limited to any one embodiment. However, hereinafter, an example in which code patterns are formed directly on some areas of the front surface of the touch patterns will be described, and the detailed formation structure of the code patterns will be described in more detail later with reference to the attached drawings.

The display driver 200 may output signals and voltages for driving the display unit DU. The display driver 200 may supply data voltages to data wires. The display driver 200 may supply power voltage to the power wiring and supply gate control signals to the gate driver.

The touch driver 400 may be connected to a touch sensing unit (TSU). The touch driver 400 may supply a touch drive signal to a plurality of touch electrodes of the touch sensing unit (TSU) and sense the amount of change in capacitance between the plurality of touch electrodes. The touch driver 400 may determine whether a user has touched a touch and calculate touch coordinates based on the amount of change in capacitance between a plurality of touch electrodes.

The main processor 500 can control all functions of the display device 10. For example, the main processor 500 may supply digital video data to the display driver 200 so that the display panel 100 displays an image. For example, the main processor 500 receives touch data from the touch driver 400, determines the user's touch coordinates, and then generates digital video data according to the touch coordinates or generates digital video data indicated by the icon displayed at the user's touch coordinates. You can run the application. As another example, the main processor 500 receives coordinate data from the touch input device 20, determines the touch coordinates of the touch input device 20, and then generates digital video data according to the touch coordinates or generates digital video data according to the touch input device ( You can run the application indicated by the icon displayed at the touch coordinates in 20).

The communication unit 600 can perform wired or wireless communication with external devices. For example, the communication unit 600 may transmit and receive communication signals with the communication module 24 of the touch input device 20. The communication unit 600 may receive coordinate data consisting of a data code from the touch input device 20 and provide the coordinate data to the main processor 500.

The touch input device 20 is used as a touch input device and may be configured as an electronic pen such as a smart pen. The touch input device 20 is an electronic pen that detects display light of the display panel 100 or light reflected from the display panel 100 using an optical method, and is included in the display panel 100 based on the detected light. It is possible to detect grid patterns and code patterns and generate coordinate data. The touch input device 20 may be an electronic pen in the shape of a writing instrument, but is not limited simply to the shape or structure of the writing instrument.

The code detection unit 21 of the touch input device 20 is disposed adjacent to the pen tip of the touch input device 20 and detects grid patterns and code patterns included in the display panel 100. To this end, the code detection unit 21 includes at least one light emitting unit 21(a) that emits infrared light using at least one infrared light source, and an infrared camera that transmits the infrared light reflected from the code patterns and grid patterns. It includes at least one light receiving unit 21(b) that detects.

At least one infrared light source included in the light emitting unit 21(a) may be configured as an infrared LED array in a matrix structure. In addition, the infrared camera of the light receiving unit 21(b) includes a filter that blocks wavelength bands other than infrared rays and passes infrared rays, a lens system that focuses infrared rays that have passed through the filter, and an optical image formed by the lens system into an electrical image signal. It may include an optical image sensor that converts and outputs the image. The optical image sensor is composed of a matrix-structured array like an infrared LED array, and provides shape data of grid patterns and code patterns to the code processor 23 according to the shape and amount of reflected light reflected from the grid patterns and code patterns. can do. In this way, the code detection unit 21 of the touch input device 20 continuously detects grid patterns and code patterns according to the user's control and movement, and continuously generates shape data of the grid patterns and code patterns to process the code. It can be provided as (23).

The code processor 23 may continuously receive shape data of grid patterns and code patterns from the code detector 21. The code processor 23 continuously receives shape data for the grid patterns and code patterns, identifies the shapes and arrangement structures of the grid patterns and code patterns, and extracts or generates coordinate data.

Specifically, the code processor 23 receives shape data for grid patterns and extracts and forms a plurality of grid reference lines based on the arrangement positions of the grid patterns. Then, by matching and comparing the plurality of grid reference lines with the shape data of the code patterns, touch position coordinates and coordinate data according to the result of comparing the arrangement positions of the plurality of grid reference lines and the code patterns are extracted. The code processor 23 transmits coordinate data including touch position coordinates to the display device 10 through the communication module 24. In this way, the code processor 23 continuously generates touch position coordinates and coordinate data corresponding to the shape as a result of comparing the arrangement positions of a plurality of grid reference lines and code patterns, thereby quickly generating coordinate data in real time without complex calculations and corrections. can be created.

The communication module 24 can perform wired or wireless communication with an external device. For example, the communication module 24 may transmit and receive communication signals with the communication unit 600 of the display device 10. The communication module 24 may receive coordinate data including touch position coordinates from the code processor 23 and provide the coordinate data to the communication unit 600 .

The memory 25 may store data necessary for driving the touch input device 20. The memory 25 stores a shape image or shape data as a result of comparing the arrangement positions of a plurality of grid reference lines and code patterns, and touch position coordinates and coordinate data corresponding to the shape image or shape data. The memory 25 shares with the code processor 23 a shape image or shape data as a result of comparing the arrangement positions of a plurality of grid reference lines and code patterns, and touch position coordinates and coordinate data corresponding to the shape image or shape data. Accordingly, the code processor 23 matches and compares the arrangement positions of the plurality of grid reference lines and code patterns. Also, by matching and comparing the comparison result with the arrangement position comparison result shape image or shape data stored in the memory 25, touch position coordinates and coordinate data according to the comparison result can be extracted.

FIG. 3 is a perspective view specifically showing the configuration of the display device shown in FIG. 2. And, FIG. 4 is a cross-sectional view specifically showing the configuration of the display device shown in FIG. 2.

Referring to FIGS. 3 and 4 , the display device 10 may have a planar shape similar to a square. For example, the display device 10 may have a planar shape similar to a square with a short side in the X-axis direction and a long side in the Y-axis direction. The corner where the short side in the X-axis direction and the long side in the Y-axis direction meet may be rounded to have a predetermined curvature or may be formed at a right angle. The planar shape of the display device 10 is not limited to a square, and may be similar to other polygons, circles, or ovals.

The display panel 100 may include a main area (MA) and a sub area (SBA).

The main area MA may include a display area DA including pixels that display an image, and a non-display area NDA disposed around the display area DA. The display area DA may emit light from a plurality of light-emitting areas or a plurality of opening areas. For example, the display panel 100 may include a pixel circuit including switching elements, a pixel defining layer defining a light emitting area or an opening area, and a self-light emitting element.

The non-display area (NDA) may be an area outside the display area (DA). The non-display area NDA may be defined as an edge area of the main area MA of the display panel 100. The non-display area NDA may include a gate driver (not shown) that supplies gate signals to the gate wires, and fan-out wires (not shown) connecting the display driver 200 and the display area DA. there is.

The sub area SBA may extend from one side of the main area MA. The sub-area SBA may include a flexible material capable of bending, folding, rolling, etc. For example, when the sub-area SBA is bent, the sub-area SBA may overlap the main area MA in the thickness direction (Z-axis direction). The sub-area SBA may include a display driver 200 and a pad portion connected to the circuit board 300. Optionally, the sub area SBA may be omitted, and the display driver 200 and the pad unit may be placed in the non-display area NDA.

The display driver 200 may be formed of an integrated circuit (IC) and mounted on the display panel 100 using a chip on glass (COG) method, a chip on plastic (COP) method, or an ultrasonic bonding method. For example, the display driver 200 may be disposed in the sub-area SBA, and may overlap the main area MA in the thickness direction (Z-axis direction) by bending the sub-area SBA. For another example, the display driver 200 may be mounted on the circuit board 300.

The circuit board 300 may be attached to the pad portion of the display panel 100 using an anisotropic conductive film (ACF). Lead wires of the circuit board 300 may be electrically connected to the pad portion of the display panel 100. The circuit board 300 may be a flexible printed circuit board, a printed circuit board, or a flexible film such as a chip on film.

The touch driver 400 may be mounted on the circuit board 300. The touch driver 400 may be formed as an integrated circuit (IC). As described above, the touch driver 400 may supply a touch drive signal to a plurality of touch electrodes of the touch sensing unit (TSU) and sense the amount of change in capacitance between the plurality of touch electrodes. Here, the touch driving signal may be a pulse signal with a predetermined frequency. The touch driver 400 calculates whether a touch input is made by a part of the user's body, such as a finger, and the touch coordinates based on the amount of change in capacitance between the plurality of touch electrodes.

Referring to FIG. 4 , the display panel 100 may include a display unit (DU), a touch sensing unit (TSU), and a polarizing film (not shown). The display unit DU may include a substrate SUB, a thin film transistor layer (TFTL), a light emitting device layer (EML), and an encapsulation layer (TFEL).

The substrate SUB may be a base substrate or a base member. The substrate (SUB) may be a flexible substrate capable of bending, folding, rolling, etc. For example, the substrate (SUB) may include a glass material or a metal material, but is not limited thereto. As another example, the substrate (SUB) may include a polymer resin such as polyimide (PI).

The thin film transistor layer (TFTL) may be disposed on the substrate (SUB). The thin film transistor layer (TFTL) may include a plurality of thin film transistors constituting a pixel circuit of pixels. The thin film transistor layer (TFTL) includes gate wires, data wires, power wires, gate control wires, fan out wires connecting the display driver 200 and the data wires, and connecting the display driver 200 and the pad unit. It may further include lead wires. When the gate driver is formed on one side of the non-display area NDA of the display panel 100, the gate driver may also include thin film transistors.

The thin film transistor layer TFTL may be disposed in the display area DA, non-display area NDA, and sub-area SBA. Thin film transistors, gate wires, data wires, and power wires of each pixel of the thin film transistor layer TFTL may be disposed in the display area DA. Gate control wires and fan-out wires of the thin film transistor layer (TFTL) may be disposed in the non-display area (NDA). Lead wires of the thin film transistor layer TFTL may be disposed in the sub-area SBA.

The light emitting device layer (EML) may be disposed on the thin film transistor layer (TFTL). The light emitting device layer (EML) may include a plurality of light emitting devices that emit light by sequentially stacking a first electrode, an light emitting layer, and a second electrode, and a pixel defining layer that defines pixels. A plurality of light emitting devices of the light emitting device layer (EML) may be disposed in the display area (DA). The light-emitting layer may be an organic light-emitting layer containing an organic material. The light emitting layer may include a hole transport layer, an organic light emitting layer, and an electron transport layer. When the first electrode receives a predetermined voltage through the thin film transistor of the thin film transistor layer (TFTL) and the second electrode receives the cathode voltage, holes and electrons can be moved to the organic light-emitting layer through the hole transport layer and electron transport layer, respectively. and can emit light by combining with each other in the organic light-emitting layer. For example, the first electrode may be an anode electrode and the second electrode may be a cathode electrode, but are not limited thereto.

For another example, the plurality of light emitting devices may include quantum dot light emitting diodes including a quantum dot light emitting layer or inorganic light emitting diodes including an inorganic semiconductor.

The encapsulation layer (TFEL) can cover the top and side surfaces of the light emitting device layer (EML) and protect the light emitting device layer (EML). The encapsulation layer TFEL may include at least one inorganic layer and at least one organic layer to encapsulate the light emitting device layer EML.

The touch sensing unit (TSU) may be disposed on the encapsulation layer (TFEL). The touch sensing unit (TSU) may include a plurality of touch electrodes for detecting a user's touch in a capacitive manner, and touch wires connecting the plurality of touch electrodes and the touch driver 400. For example, the touch sensing unit (TSU) may sense the user's touch using a self-capacitance method or a mutual capacitance method.

For another example, the touch sensing unit (TSU) may be disposed on a separate substrate disposed on the display unit (DU). In this case, the substrate supporting the touch sensing unit (TSU) may be a base member that seals the display unit (DU).

A plurality of touch electrodes of the touch sensing unit (TSU) may be disposed in a touch sensor area that overlaps the display area (DA). The touch wires of the touch sensing unit (TSU) may be arranged in a touch peripheral area that overlaps the non-display area (NDA).

The sub area SBA of the display panel 100 may extend from one side of the main area MA. The sub-area SBA may include a flexible material capable of bending, folding, rolling, etc. For example, when the sub-area SBA is bent, the sub-area SBA may overlap the main area MA in the thickness direction (Z-axis direction). The sub-area SBA may include a display driver 200 and a pad portion connected to the circuit board 300.

FIG. 5 is a plan view illustrating a display unit of a display device according to an exemplary embodiment.

Referring to FIG. 5 , the display area DA of the display unit DU is an area for displaying an image and may be defined as the central area of the display panel 100. The display area DA may include a plurality of pixels SP, a plurality of gate wires GL, a plurality of data wires DL, and a plurality of power wires VL. Each of the plurality of pixels (SP) may be defined as the minimum unit that outputs light.

The plurality of gate wires GL may supply gate signals received from the gate driver 210 to the plurality of pixels SP. The plurality of gate wires GL may extend in the X-axis direction and may be spaced apart from each other in the Y-axis direction that intersects the X-axis direction.

The plurality of data lines DL may supply data voltages received from the display driver 200 to the plurality of pixels SP. The plurality of data lines DL may extend in the Y-axis direction and may be spaced apart from each other in the X-axis direction.

The plurality of power lines (VL) may supply the power voltage received from the display driver 200 to the plurality of pixels (SP). Here, the power supply voltage may be at least one of a driving voltage, an initialization voltage, and a reference voltage. The plurality of power wirings (VL) may extend in the Y-axis direction and may be spaced apart from each other in the X-axis direction.

The non-display area (NDA) of the display unit (DU) may surround the display area (DA). The non-display area NDA may include a gate driver 210, fan out lines FOL, and gate control lines GCL. The gate driver 210 may generate a plurality of gate signals based on the gate control signal and sequentially supply the plurality of gate signals to the plurality of gate wires GL in a set order.

The fan out wires FOL may extend from the display driver 200 to the display area DA. The fan out lines FOL may supply the data voltage received from the display driver 200 to the plurality of data lines DL.

The gate control line (GCL) may extend from the display driver 200 to the gate driver 210. The gate control line (GCL) may supply the gate control signal received from the display driver 200 to the gate driver 210.

The sub-area SBA may include the display driver 200, the display pad area DPA, and the first and second touch pad areas TPA1 and TPA2.

The display driver 200 may output signals and voltages for driving the display panel 100 to the fan-out lines (FOL). The display driver 200 may supply the data voltage to the data line DL through the fan-out lines FOL. The data voltage may be supplied to the plurality of pixels SP, and the luminance of the plurality of pixels SP may be determined. The display driver 200 may supply a gate control signal to the gate driver 210 through the gate control line (GCL).

The display pad area DPA, the first touch pad area TPA1, and the second touch pad area TPA2 may be disposed at the edge of the sub-area SBA. The display pad area (DPA), the first touch pad area (TPA1), and the second touch pad area (TPA2) are electrically connected to the circuit board 300 using a low-resistance, high-reliability material such as an anisotropic conductive film or SAP. You can.

The display pad area DPA may include a plurality of display pad portions DPP. A plurality of display pad units (DPP) may be connected to the main processor 500 through the circuit board 300. The plurality of display pad units (DPP) are connected to the circuit board 300 and can receive digital video data and supply digital video data to the display driver 200 .

Figure 6 is a plan view showing a touch sensing unit of a display device according to an embodiment.

Referring to FIG. 6 , the touch sensing unit (TSU) may include a touch sensor area (TSA) that detects a user's touch, and a touch peripheral area (TPA) disposed around the touch sensor area (TSA). The touch sensor area TSA may overlap the display area DA of the display unit DU, and the touch peripheral area TPA may overlap the non-display area NDA of the display unit DU.

The touch sensor area TSA may include a plurality of touch electrodes SEN and a plurality of dummy electrodes DE. The plurality of touch electrodes (SEN) may form mutual capacitance or self-capacitance to detect the touch of an object or person. The plurality of touch electrodes (SEN) may include a plurality of driving electrodes (TE) and a plurality of sensing electrodes (RE).

A plurality of driving electrodes TE may be arranged in the X-axis direction and the Y-axis direction. The plurality of driving electrodes TE may be spaced apart from each other in the X-axis direction and the Y-axis direction. Driving electrodes (TE) adjacent to each other in the Y-axis direction may be electrically connected through a plurality of connection electrodes (CE).

The plurality of driving electrodes TE may be connected to the first touch pad unit DTP1 through the driving wiring TL. The driving wiring (TL) may include a lower driving wiring (TLa) and an upper driving wiring (TLb). For example, some of the driving electrodes TE disposed below the touch sensor area TSA may be connected to the first touch pad part DTP1 through the lower driving wiring TLa, and the touch sensor area TSA ), some of the other driving electrodes TE disposed on the upper side may be connected to the first touch pad part DTP1 through the upper driving wiring TLb. The lower driving wire (TLa) may extend beyond the bottom of the touch peripheral area (TPA) to the first touch pad portion (DTP1). The upper driving line TLb may extend to the first touch pad portion DTP1 via the upper, left, and lower sides of the touch peripheral area TPA. The first touch pad unit (DTP1) may be connected to the touch driver 400 through the circuit board 300.

The connection electrode CE may be bent at least once. For example, the connection electrode CE may have an angle bracket shape (“<” or “>”), but the planar shape of the connection electrode CE is not limited to this. Drive electrodes (TE) adjacent to each other in the Y-axis direction may be electrically connected by a plurality of connection electrodes (CE), and even if one of the plurality of connection electrodes (CE) is disconnected, the drive electrodes (TE) are connected to the remaining connection electrodes (CE). CE) can be connected stably. Driving electrodes (TE) adjacent to each other may be connected by two connection electrodes (CE), but the number of connection electrodes (CE) is not limited to this.

The connection electrode (CE) may be disposed on a different layer from the plurality of driving electrodes (TE) and the plurality of sensing electrodes (RE). Sensing electrodes RE adjacent to each other in the That is, the plurality of sensing electrodes RE may extend in the X-axis direction and be spaced apart from each other in the Y-axis direction. A plurality of sensing electrodes RE may be arranged in the X-axis direction and Y-axis direction, and sensing electrodes RE adjacent to the X-axis direction may be electrically connected through a connection portion.

Driving electrodes (TE) adjacent to each other in the Y-axis direction may be electrically connected to a plurality of driving electrodes (TE) or a plurality of sensing electrodes (RE) through a connection electrode (CE) disposed on a different layer. The connection electrodes (CE) may be formed on a rear layer (or lower layer) of the layer on which the driving electrodes (TE) and the sensing electrodes (RE) are formed. The connection electrodes (CE) are electrically connected to each adjacent driving electrode (TE) through a plurality of contact holes. Accordingly, even if the connection electrodes CE overlap the plurality of sensing electrodes RE in the Z-axis direction, the plurality of driving electrodes TE and the plurality of sensing electrodes RE may be insulated from each other. Mutual capacitance may be formed between the driving electrode (TE) and the sensing electrode (RE).

The plurality of sensing electrodes RE may be connected to the second touch pad unit TP2 through the sensing wire RL. For example, some of the sensing electrodes RE disposed on the right side of the touch sensor area TSA may be connected to the second touch pad unit TP2 through the sensing wire RL. The sensing line RL may extend to the second touch pad portion TP2 via the right and lower sides of the touch peripheral area TPA. The second touch pad unit TP2 may be connected to the touch driver 400 through the circuit board 300 .

Each of the plurality of dummy electrodes DE may be surrounded by a driving electrode TE or a sensing electrode RE. Each of the plurality of dummy electrodes DE may be insulated from the driving electrode TE or the sensing electrode RE. Accordingly, the dummy electrode DE may be electrically floating.

Each grid pattern is formed in such a way that at least one electrode among the plurality of driving electrodes (TE), the plurality of sensing electrodes (RE), and the plurality of dummy electrodes (DE) protrudes from each grid reference point position. In addition, a plurality of grid patterns may be formed in a separated form at each grid reference point position from at least one electrode of the plurality of driving electrodes (TE), the plurality of sensing electrodes (RE), and the plurality of dummy electrodes (DE). It may be possible. In addition, code patterns in the shape of a flat code are formed at preset intervals on some areas of the front surface of at least one electrode among the plurality of driving electrodes (TE), the plurality of sensing electrodes (RE), and the plurality of dummy electrodes (DE). do.

The display pad area DPA, the first touch pad area TPA1, and the second touch pad area TPA2 may be disposed at the edge of the sub-area SBA. The display pad area (DPA), the first touch pad area (TPA1), and the second touch pad area (TPA2) are electrically connected to the circuit board 300 using a low-resistance, high-reliability material such as an anisotropic conductive film or SAP. You can.

The first touch pad area TPA1 may be disposed on one side of the display pad area DPA and may include a plurality of first touch pad units DTP1. The plurality of first touch pad units DTP1 may be electrically connected to the touch driver 400 disposed on the circuit board 300. The plurality of first touch pad units DTP1 may supply touch driving signals to the plurality of driving electrodes TE through the plurality of driving wires TL.

The second touch pad area TPA2 may be disposed on the other side of the display pad area DPA and may include a plurality of second touch pad units DTP2. The plurality of second touch pad units DTP2 may be electrically connected to the touch driver 400 disposed on the circuit board 300. The touch driver 400 may receive a touch sensing signal through a plurality of sensing wires (RL) connected to a plurality of second touch pad units (DTP2), and may detect the interaction between the driving electrode (TE) and the sensing electrode (RE). Changes in capacitance can be sensed.

For another example, the touch driver 400 may supply a touch driving signal to each of the plurality of driving electrodes (TE) and the plurality of sensing electrodes (RE), and the plurality of driving electrodes (TE) and the plurality of sensing electrodes (RE). ) A touch sensing signal can be received from each. The touch driver 400 may sense the amount of change in charge of each of the plurality of driving electrodes (TE) and the plurality of sensing electrodes (RE) based on the touch sensing signal.

Figure 7 is an enlarged view specifically showing area A1 of Figure 6. And, FIG. 8 is an enlarged view specifically showing the structure of the connection portion of the connection electrode and the sensing electrodes of FIG. 7.

Referring to FIGS. 7 and 8 , a plurality of driving electrodes (TE), a plurality of sensing electrodes (RE), and a plurality of dummy electrodes (DE) may be disposed on the same layer and may be spaced apart from each other.

A plurality of driving electrodes TE may be arranged in the X-axis direction and the Y-axis direction. The plurality of driving electrodes TE may be spaced apart from each other in the X-axis direction and the Y-axis direction. Driving electrodes (TE) adjacent to each other in the Y-axis direction may be electrically connected through a connection electrode (CE).

The plurality of sensing electrodes RE may extend in the X-axis direction and be spaced apart from each other in the Y-axis direction. A plurality of sensing electrodes RE may be arranged in the X-axis direction and Y-axis direction, and sensing electrodes RE adjacent to each other in the X-axis direction may be electrically connected. For example, the sensing electrodes RE may be electrically connected through a connection portion, and the connection portion may be disposed within the shortest distance between the driving electrodes TE adjacent to each other.

The plurality of connection electrodes (CE) may be disposed on a different layer from the driving electrode (TE) and the sensing electrode (RE), for example, a back layer. The connection electrode CE may include a first part CEa and a second part CEb. For example, the first portion (CEa) of the connection electrode (CE) may be connected to the driving electrode (TE) disposed on one side through the first contact hole (CNT1) and extend in the third direction (DR3). The second part (CEb) of the connection electrode (CE) may be bent from the first part (CEa) in an area overlapping with the sensing electrode (RE) and extend in the second direction (DR2), and the first contact hole (CNT1) ) can be connected to the driving electrode (TE) disposed on the other side. Hereinafter, the first direction DR1 is a direction between the X-axis direction and the Y-axis direction, the second direction DR2 is a direction between the opposite direction of the Y-axis direction and the X-axis direction, and the third direction DR3 may be a direction opposite to the first direction DR1, and the fourth direction DR4 may be a direction opposite to the second direction DR2. Accordingly, each of the plurality of connection electrodes (CE) can connect adjacent driving electrodes (TE) in the Y-axis direction.

Each pixel group PG may include first to third sub-pixels or first to fourth sub-pixels, and each of the first to fourth sub-pixels includes first to fourth emission areas EA1, EA2, EA3, EA4) may be included. For example, the first emission area EA1 may emit light of a first color or red light, the second emission area EA2 may emit light of a second color or green light, and the third emission area EA2 may emit light of a second color or green light. The light emitting area EA3 may emit third color light or blue light. Additionally, the fourth light emitting area EA4 may emit light of the fourth color or light of any one of the first to third colors, but is not limited thereto.

One pixel group PG may express a white grayscale through the first to third emission areas EA1 to EA3 or the first to fourth emission areas EA1 to EA4. Additionally, gradations of various colors, such as white, can be expressed by combining the light emitted from the first to third emission areas (EA1 to EA3) or the first to fourth emission areas (EA1 to EA4).

Depending on the arrangement structure of the first to third sub-pixels or the first to fourth sub-pixels, a plurality of driving electrodes (TE), a plurality of sensing electrodes (RE), and a plurality of dummy electrodes (DE) are meshed on the plane ( It can be formed into a mesh structure or a mesh structure.

A plurality of driving electrodes (TE), a plurality of sensing electrodes (RE), and a plurality of dummy electrodes (DE) are formed in the first to third emission areas (EA1 to EA3) or the first to third emission areas (EA1 to EA3) forming the pixel group (PG) on a plane. It may surround and surround each of the fourth light emitting areas EA1 to EA4. Accordingly, the plurality of driving electrodes TE, the plurality of sensing electrodes RE, and the plurality of dummy electrodes DE may not overlap the first to fourth emission areas EA1 to EA4. The plurality of connection electrodes CE may also not overlap the first to fourth light emitting areas EA1 to EA4. Accordingly, the display device 10 can prevent the luminance of light emitted from the first to fourth emission areas EA1 to EA4 from being reduced by the touch sensing unit TSU.

Each of the plurality of driving electrodes TE is formed to include a first part TEa extending in the first direction DR1 and a second part TEb extending in the second direction DR2, 4 It may not overlap with the emission areas (EA1 to EA4). In addition, each of the plurality of sensing electrodes RE is formed to include a first part REa extending in the first direction DR1 and a second part REb extending in the second direction DR2, It may not overlap with the fourth to fourth light emitting areas EA1 to EA4. The plurality of dummy electrodes DE are also formed so as not to overlap the first to fourth light emitting areas EA1 to EA4.

FIG. 9 is an enlarged view showing the arrangement structure of grid patterns and code patterns formed in area B1 of FIG. 6 according to an embodiment. And, Figure 10 is an enlarged view specifically showing the C1 area of Figure 9.

Referring to FIGS. 9 and 10, the plurality of grid patterns (GT) are patterns that serve as grid reference points of grid reference lines formed in the touch input device 20, and include a plurality of dummy electrodes (DE) and a plurality of driving electrodes. (TE) and a plurality of sensing electrodes (RE) may be formed simultaneously of the same material.

The plurality of grid patterns GT may be formed in a circular or elliptical shape at grid reference point positions at predetermined intervals (for example, approximately 300 ㎛ intervals). Specifically, each grid pattern (GT) is horizontal (e.g., X-axis direction), vertical (e.g., Y-axis direction), and diagonal direction (e.g., DR4 to DR5 axis direction) on a plane. The width or area in at least one direction may be wider than the widths of each of the dummy electrodes (DE), driving electrodes (TE), and sensing electrodes (RE). Accordingly, the infrared light reflectance of each grid pattern (GT) may be higher than that of each of the dummy electrodes (DE), driving electrodes (TE), and sensing electrodes (RE).

As shown in FIG. 10, each grid pattern (GT) formed with a width wider than the width of the dummy electrodes (DE), driving electrodes (TE), and sensing electrodes (RE) is disposed between the light emitting areas. In this case, the planar shape of each grid pattern GT may be formed into a polygonal shape, a circle shape, or an elliptical shape between adjacent light emitting areas.

In contrast, when each grid pattern (GT) is formed to surround at least one light-emitting area, the planar shape of each grid pattern (GT) is a rectangle, square, circle, or diamond surrounding at least one light-emitting area. It may be formed in a closed loop shape, such as. In addition, when each grid pattern (GT) is formed in a shape that surrounds and between a plurality of light-emitting areas, the planar shape of each grid pattern (GT) is a mesh structure that surrounds and between a plurality of light-emitting areas. And it may be formed into a mesh structure.

The plurality of code patterns CP are spaced at predetermined intervals (for example, about 300㎛ intervals) on some areas on the front surfaces of the plurality of dummy electrodes DE, the plurality of driving electrodes TE, and the plurality of sensing electrodes RE. ) is formed. The plurality of code patterns CP may be formed between the plurality of grid patterns GT so as not to overlap each other.

The code patterns CP are formed of light-blocking members made of a material that absorbs light, and each light-blocking member includes at least one of a plurality of driving electrodes (TE), a plurality of sensing electrodes (RE), and a plurality of dummy electrodes (DE). It is formed by covering some areas of the front of one electrode with a flat code shape of a preset size. In this case, it may be formed by covering not only a portion of the front of each electrode but also the front and at least one side.

The planar code shape of the code patterns CP may be formed into a mesh structure or network structure on a plane by surrounding and surrounding a plurality of light emitting regions instead of a single light emitting region. Alternatively, the flat code shape of the code patterns CP may be formed in a closed loop shape, such as a rectangle, square, circle, or diamond, surrounding at least one light emitting area. Alternatively, the flat code shape of the code patterns CP may be formed in an open loop shape that only partially surrounds at least one light emitting area. At this time, the flat code shape of the code patterns CP may be formed in a straight line or curved shape with a preset length. Hereinafter, an example in which the planar shapes of the code patterns CP are formed as a planar mesh structure by surrounding the space between and around the plurality of light emitting areas, respectively, will be described.

Figure 11 is a cross-sectional view specifically showing the section II' of Figure 10.

Referring to FIG. 11, a barrier film (BR) may be disposed on the substrate (SUB). The substrate (SUB) may be made of an insulating material such as polymer resin. For example, the substrate (SUB) may be made of polyimide. The substrate SUB may be a flexible substrate capable of bending, folding, rolling, etc.

The barrier film (BR) is a film that protects the transistors of the thin film transistor layer (TFTL) and the light emitting layer 172 of the light emitting element layer (EML) from moisture penetrating through the substrate (SUB), which is vulnerable to moisture penetration. The barrier film (BR) may be composed of a plurality of inorganic films stacked alternately. For example, the barrier film (BR) may be formed as a multilayer in which one or more inorganic layers of a silicon nitride layer, a silicon oxy nitride layer, a silicon oxide layer, a titanium oxide layer, and an aluminum oxide layer are alternately stacked.

Thin film transistors ST1 may be disposed on the barrier film BR. Each thin film transistor (ST1) includes an active layer (ACT1), a gate electrode (G1), a source electrode (S1), and a drain electrode (D1).

The active layer (ACT1), source electrode (S1), and drain electrode (D1) of the thin film transistors (ST1) may be disposed on the barrier film (BR). The active layer ACT1 of the thin film transistor ST1 includes polycrystalline silicon, single crystalline silicon, low-temperature polycrystalline silicon, amorphous silicon, or an oxide semiconductor. The active layer ACT1 overlapping the gate electrode G1 in the third direction (Z-axis direction), which is the thickness direction of the substrate SUB, may be defined as a channel region. The source electrode (S1) and the drain electrode (D1) are areas that do not overlap with the gate electrode (G1) in the third direction (Z-axis direction), and may be conductive by doping ions or impurities into a silicon semiconductor or oxide semiconductor. .

A gate insulating layer 130 may be disposed on the active layer (ACT1), source electrode (S1), and drain electrode (D1) of the thin film transistor (ST1). The gate insulating layer 130 may be formed of an inorganic layer, for example, a silicon nitride layer, a silicon oxy nitride layer, a silicon oxide layer, a titanium oxide layer, or an aluminum oxide layer.

The gate electrode G1 of the thin film transistor ST1 may be disposed on the gate insulating film 130. The gate electrode G1 may overlap the active layer ACT1 in the third direction (Z-axis direction). The gate electrode (G1) is made of any one of molybdenum (Mo), aluminum (Al), chromium (Cr), gold (Au), titanium (Ti), nickel (Ni), neodymium (Nd), and copper (Cu). It can be formed as a single layer or multiple layers made of an alloy.

A first interlayer insulating film 141 may be disposed on the gate electrode G1 of the thin film transistor ST1. The first interlayer insulating layer 141 may be formed of an inorganic layer, for example, a silicon nitride layer, a silicon oxy nitride layer, a silicon oxide layer, a titanium oxide layer, or an aluminum oxide layer. The first interlayer insulating film 141 may be formed of a plurality of inorganic films.

A capacitor electrode (CAE) may be disposed on the first interlayer insulating film 141. The capacitor electrode CAE may overlap the gate electrode G1 of the first thin film transistor ST1 in the third direction (Z-axis direction). Since the first interlayer insulating film 141 has a predetermined dielectric constant, a capacitor can be formed by the capacitor electrode CAE, the gate electrode G1, and the first interlayer insulating film 141 disposed between them. The capacitor electrode (CAE) is made of any one of molybdenum (Mo), aluminum (Al), chromium (Cr), gold (Au), titanium (Ti), nickel (Ni), neodymium (Nd), and copper (Cu). It can be formed as a single layer or multiple layers made of an alloy.

A second interlayer insulating film 142 may be disposed on the capacitor electrode CAE. The second interlayer insulating layer 142 may be formed of an inorganic layer, for example, a silicon nitride layer, a silicon oxy nitride layer, a silicon oxide layer, a titanium oxide layer, or an aluminum oxide layer. The second interlayer insulating film 142 may be formed of a plurality of inorganic films.

A first anode connection electrode ANDE1 may be disposed on the second interlayer insulating film 142. The first anode connection electrode ANDE1 is connected to the thin film transistor ST1 through the first connection contact hole ANCT1 penetrating the gate insulating film 130, the first interlayer insulating film 141, and the second interlayer insulating film 142. It may be connected to the drain electrode (D1). The first anode connection electrode (ANDE1) is made of molybdenum (Mo), aluminum (Al), chromium (Cr), gold (Au), titanium (Ti), nickel (Ni), neodymium (Nd), and copper (Cu). It may be formed as a single layer or multiple layers made of one or an alloy thereof.

A first planarization film 160 may be disposed on the first anode connection electrode ANDE1 to flatten the step caused by the thin film transistor ST1. The first planarization film 160 is formed of an organic film such as acryl resin, epoxy resin, phenolic resin, polyamide resin, and polyimide resin. It can be.

A second anode connection electrode ANDE2 may be disposed on the first planarization film 160. The second anode connection electrode ANDE2 may be connected to the first anode connection electrode ANDE1 through the second connection contact hole ANCT2 penetrating the first planarization film 160. The second anode connection electrode (ANDE2) is made of molybdenum (Mo), aluminum (Al), chromium (Cr), gold (Au), titanium (Ti), nickel (Ni), neodymium (Nd), and copper (Cu). It may be formed as a single layer or multiple layers made of one or an alloy thereof.

A second planarization film 180 may be disposed on the second anode connection electrode ANDE2. The second planarization film 180 is formed of an organic film such as acryl resin, epoxy resin, phenolic resin, polyamide resin, and polyimide resin. It can be.

Light emitting elements (LEL) and the bank 190 may be disposed on the second planarization film 180. Each of the light emitting elements (LEL) includes a pixel electrode 171, a light emitting layer 172, and a common electrode 173.

The pixel electrode 171 may be disposed on the second planarization film 180. The pixel electrode 171 may be connected to the second anode connection electrode ANDE2 through the third connection contact hole ANCT3 penetrating the second planarization film 180.

In a top emission structure that emits light in the direction of the common electrode 173 based on the light emitting layer 172, the pixel electrode 171 has a stacked structure of aluminum and titanium (Ti/Al/Ti), aluminum and ITO (Indium Tin). It can be formed of metal materials with high reflectivity, such as a laminated structure of oxide (ITO/Al/ITO), APC alloy, and a laminated structure of APC alloy and ITO (ITO/APC/ITO). APC alloy is an alloy of silver (Ag), palladium (Pd), and copper (Cu).

The bank 190 may be formed to partition the pixel electrode 171 on the second planarization film 180 to define the first to third emission areas EA1 to EA3. The bank 190 may be arranged to cover the edge of the pixel electrode 171. The bank 190 may be formed of an organic film such as acrylic resin, epoxy resin, phenolic resin, polyamide resin, or polyimide resin. .

In each of the first to third light-emitting areas EA1 to EA3, a pixel electrode 171, a light-emitting layer 172, and a common electrode 173 are sequentially stacked to generate holes from the pixel electrode 171 and the common electrode 173. It represents a region where electrons from the light emitting layer 172 combine with each other to emit light.

A light emitting layer 172 may be disposed on the pixel electrode 171 and the bank 190. The light emitting layer 172 may contain an organic material and emit light of a predetermined color. For example, the light emitting layer 172 includes a hole transporting layer, an organic material layer, and an electron transporting layer.

The common electrode 173 may be disposed on the light emitting layer 172. The common electrode 173 may be disposed to cover the light emitting layer 172. The common electrode 173 may be a common layer commonly formed in the first emission area (EA1), the second emission area (EA2), and the third emission area (EA3). A capping layer may be formed on the common electrode 173.

In the upper light-emitting structure, the common electrode 173 is made of a transparent metal material (TCO, Transparent Conductive Material) such as ITO or IZO that can transmit light, or magnesium (Mg), silver (Ag), or magnesium (Mg) and silver. It can be formed of a semi-transmissive conductive material such as an alloy of (Ag). When the common electrode 173 is formed of a translucent metal material, light output efficiency can be increased due to a micro cavity.

An encapsulation layer (TFEL) may be disposed on the common electrode 173. The encapsulation layer (TFEL) includes at least one inorganic layer to prevent oxygen or moisture from penetrating into the light emitting device layer (EML). Additionally, the encapsulation layer TFEL includes at least one organic layer to protect the light emitting device layer EML from foreign substances such as dust. For example, the encapsulation layer TFEL includes a first encapsulation inorganic layer TFE1, an organic encapsulation layer TFE2, and a second inorganic encapsulation layer TFE3.

The first encapsulation inorganic layer (TFE1) is disposed on the common electrode 173, the encapsulation organic layer (TFE2) is disposed on the first encapsulation inorganic layer (TFE1), and the second encapsulation inorganic layer (TFE3) is the encapsulation organic layer (TFE3). It may be placed on a membrane (TFE2). The first encapsulating inorganic film (TFE1) and the second encapsulating inorganic film (TFE3) are alternately stacked with one or more inorganic films selected from the group consisting of a silicon nitride layer, a silicon oxy nitride layer, a silicon oxide layer, a titanium oxide layer, and an aluminum oxide layer. It can be formed as a multilayer. The encapsulation organic film (TFE2) may be an organic film such as acrylic resin, epoxy resin, phenolic resin, polyamide resin, or polyimide resin.

A touch sensing unit (TSU) may be disposed on the encapsulation layer (TFEL). The touch sensing unit (TSU) includes a first touch insulating layer (TINS1), a connection electrode (CE), a second touch insulating layer (TINS2), a driving electrode (TE), a sensing electrode (RE), and a third touch insulating layer (TINS3). Includes.

The first touch insulating layer TINS1 may be formed of an inorganic layer, for example, a silicon nitride layer, a silicon oxy nitride layer, a silicon oxide layer, a titanium oxide layer, or an aluminum oxide layer.

A connection electrode (CE) may be disposed on the first touch insulating layer (TINS1). The connection electrode (CE) is made of any one of molybdenum (Mo), aluminum (Al), chromium (Cr), gold (Au), titanium (Ti), nickel (Ni), neodymium (Nd), and copper (Cu). It can be formed as a single layer or multiple layers made of an alloy. When forming the connection electrode (CE), grid patterns (GT) may be formed simultaneously with the same metal material as the connection electrode (CE). That is, the connection electrodes CE and the grid patterns GT may be formed simultaneously on the first touch insulating layer TINS1 through the same patterning process.

A second touch insulating layer TINS2 is disposed on the first touch insulating layer TINS1 including connection electrodes CE and grid patterns GT. The second touch insulating layer TINS2 may be formed of an inorganic layer, for example, a silicon nitride layer, a silicon oxy nitride layer, a silicon oxide layer, a titanium oxide layer, or an aluminum oxide layer. Alternatively, the second touch insulating film TINS2 is an organic film such as acryl resin, epoxy resin, phenolic resin, polyamide resin, or polyimide resin. can be formed.

Driving electrodes TE and sensing electrodes RE may be disposed on the second touch insulating layer TINS2. When forming the driving electrodes TE and the sensing electrodes RE, grid patterns GT may be formed simultaneously. That is, the driving electrodes TE, sensing electrodes RE, and grid patterns GT may be formed simultaneously on the second touch insulating layer TINS2 through the same patterning process. In addition, in addition to the driving electrodes TE and the sensing electrodes RE, the dummy electrodes DE shown in FIG. 4, the first touch driving wires TL1, the second touch driving wires TL2, And touch sensing wires RL may be disposed on the second touch insulating layer TINS2.

The driving electrodes (TE), sensing electrodes (RE), and dummy electrodes (DE) are formed of conductive metal electrodes, and the conductive metal electrodes include molybdenum (Mo), aluminum (Al), chromium (Cr), and gold (Au). , titanium (Ti), nickel (Ni), neodymium (Nd), and copper (Cu) or an alloy thereof. The driving electrodes TE, sensing electrodes RE, and dummy electrodes DE are formed in a mesh structure or mesh structure so as not to overlap the light emitting areas EA1 to EA4. Each of the driving electrode (TE) and the sensing electrode (RE) may partially overlap the connection electrode (CE) in the third direction (Z-axis direction). The driving electrode TE may be connected to the connection electrode CE through the touch contact hole TCNT1 penetrating the second touch insulating layer TINS2.

A light blocking member is applied to the entire surface of the second touch insulating layer TINS2 including the driving electrodes TE, sensing electrodes RE, and dummy electrodes DE. Then, the applied light blocking member is patterned into the shapes of the driving electrodes (TE), sensing electrodes (RE), and dummy electrodes (DE) and a preset planar code shape. Specifically, the light blocking member may be formed into code patterns CP by performing an exposure and patterning process using a mask. In this way, code patterns CP are formed on the front areas of the driving electrodes TE, the sensing electrodes RE, and the dummy electrodes DE through the patterning process.

Light blocking members formed of code patterns CP may be formed of materials containing infrared or ultraviolet absorbing materials. For example, the light blocking member may be formed of a material containing an inorganic or organic pigment. Here, the inorganic pigment may be a pigment containing at least one of carbon black, cyanine, polymethine, anthraquinone, and phthalocyanine-based compounds. there is. On the other hand, the organic pigment may include at least one of Lactam Black, Perylene Black, and Aniline Black, but is not limited thereto.

A third touch insulating layer TINS3 is formed on each of the driving electrodes TE and the sensing electrodes RE including the code patterns CP. The third touch insulating layer TINS3 may serve to flatten the steps formed by the driving electrodes TE, the sensing electrodes RE, and the connection electrodes CE. To this end, the third touch insulating layer TINS3 may be formed of an inorganic layer, that is, a silicon nitride layer, a silicon oxy nitride layer, a silicon oxide layer, a titanium oxide layer, or an aluminum oxide layer. In contrast, the third touch insulating film (TINS3) is made of organic materials such as acryl resin, epoxy resin, phenolic resin, polyamide resin, and polyimide resin. It may also be formed into a membrane.

A plurality of color filter layers (CFL1, CFL3, and CFL4) may be formed on the touch sensing unit (TSU). As an example, a plurality of color filter layers (CFL1, CFL3, and CFL4) may be formed in a planar shape on the third touch insulating layer (TINS3).

FIG. 12 is a diagram showing the detected shape and arrangement position of the grid patterns shown in FIG. 9.

Referring to FIG. 12, the code detection unit 21 of the touch input device 20 emits infrared light to the display panel 100 and detects touch electrodes (SEN), grid patterns (GT), and code patterns (CP). Detect infrared light reflected from the field. The code detection unit 21 detects grid patterns (GT) and code patterns (CP) from an optical image formed in response to the amount of infrared light reflected from the touch electrodes (SEN), grid patterns (GT), and code patterns (CP). Shape images and shape data for objects can be detected.

The code detection unit 21 detects shape images and shape data for the grid patterns (GT) from the optical image. Specifically, the code detection unit 21 has the highest infrared light reflectance among the touch electrodes (SEN), grid patterns (GT), and code patterns (CP), and thus the shape and arrangement position of the grid patterns (GT) with a large amount of infrared light. is detected from the optical image, and shape data for the grid patterns (GT) is provided to the code processor 23.

The code detection unit 21 of the touch input device 20 continuously detects grid patterns (GT) according to the user's control and movement, and continuously generates shape data containing the shape and position information of the grid patterns (GT). Thus, it can be provided to the code processor 23.

FIG. 13 is a diagram showing the detected shape and arrangement position of the code patterns shown in FIG. 9.

Referring to FIG. 13, the code detection unit 21 detects code patterns (CP) from an optical image formed in response to the amount of infrared light reflected from the touch electrodes (SEN), grid patterns (GT), and code patterns (CP). Shape images and shape data can be detected.

Specifically, the code detection unit 21 determines the shape and arrangement position of the code patterns (CP) with the lowest infrared light reflectance among the touch electrodes (SEN), grid patterns (GT), and code patterns (CP) and thus have a small amount of infrared light. is detected from the optical image, and shape data for the code patterns (CP) is provided to the code processor 23.

The code detection unit 21 of the touch input device 20 continuously detects code patterns (CP) according to the user's control and movement, and continuously generates shape data containing the shape and position information of the code patterns (CP). Thus, it can be provided to the code processor 23.

FIG. 14 is a diagram for explaining a method of forming a plurality of grid reference lines according to the arrangement positions of the grid patterns shown in FIG. 12. And, FIG. 15 is a diagram for explaining a method of detecting touch position coordinates according to the result of comparing the arrangement positions of a plurality of grid reference lines and code patterns shown in FIG. 14.

Referring to FIGS. 14 and 15 , the code processor 23 continuously receives shape data of grid patterns (GT) and code patterns (CP) from the code detector 21. Then, the shape and arrangement structure of the grid patterns (GT) and code patterns (CP) are identified, respectively, to extract or generate coordinate data.

Specifically, the code processor 23 connects the arrangement positions of the grid patterns (GT) with a straight line based on the arrangement positions of the grid patterns (GT) included in the shape data of the grid patterns (GT) to form a plurality of grid reference lines ( GTL1 to GTLn) can be generated.

As shown in FIG. 15, the code processor 23 matches and compares the plurality of grid reference lines (GTL1 to GTLn) with the shape data of the code patterns (CP). At this time, the code processor 23 matches and compares the arrangement positions of the plurality of grid reference lines (GTL1 to GTLn) and the code patterns (CP). And the code processor 23 compares the matched comparison result shape image or shape data with the arrangement position comparison result shape image or shape data stored in the memory 25, thereby extracting touch position coordinates and coordinate data according to the comparison result. can do.

The code processor 23 transmits coordinate data including touch position coordinates to the display device 10 through the communication module 24. In this way, the code processor 23 continuously generates touch position coordinates and coordinate data corresponding to the shape as a result of comparing the arrangement positions of the plurality of grid reference lines (GTL1 to GTLn) and the code patterns (CP), thereby performing complex calculations and corrections. Coordinate data can be quickly generated in real time without any need.

FIG. 16 is an enlarged view showing the arrangement structure of grid patterns and code patterns formed in area B1 of FIG. 6 according to another embodiment. FIG. 17 is an enlarged view specifically showing area C1 of FIG. 16.

Referring to FIGS. 16 and 17, the plurality of grid patterns (GT) include a plurality of dummy electrodes (DE) and a plurality of driving electrodes ( TE) and a plurality of sensing electrodes (RE) may be formed in the form of a circular or oval island separated from each other. A plurality of grid patterns (GT) may be arranged at least two at grid reference point positions.

The plurality of grid patterns (GT) are oriented in at least one of horizontal (e.g., X-axis direction), vertical (e.g., Y-axis direction), and diagonal directions (e.g., DR4 to DR5 axis directions) on a plane. The width or area may be formed to be wider than the widths of each of the dummy electrodes (DE), driving electrodes (TE), and sensing electrodes (RE). Accordingly, the infrared light reflectance of each grid pattern (GT) may be higher than that of each of the dummy electrodes (DE), driving electrodes (TE), and sensing electrodes (RE).

As shown in FIG. 17, each grid pattern (GT) formed with a width wider than the width of the dummy electrodes (DE), driving electrodes (TE), and sensing electrodes (RE) is disposed between the light emitting areas. In this case, the planar shape of each grid pattern GT may be formed into a polygonal shape, a circle shape, or an elliptical shape between adjacent light emitting areas.

The plurality of code patterns CP may be formed between the plurality of grid patterns GT so as not to overlap each other.

The plurality of code patterns (CP) are formed of light-shielding members made of a material that absorbs light, and the formation width of each code pattern (CP) is determined by a plurality of driving electrodes (TE), a plurality of sensing electrodes (RE), and a plurality of It may be formed to have the same width as the front width of at least one of the dummy electrodes DE. In this case, the plurality of code patterns CP cover a portion of the front surface of at least one of the driving electrodes TE, the sensing electrodes RE, and the dummy electrodes DE.

The formation width of each code pattern CP may be the same as the front and side widths of at least one of the driving electrodes TE, the sensing electrodes RE, and the dummy electrodes DE. You can. In this case, the plurality of code patterns CP cover the front surface and a portion of the side area of at least one of the driving electrodes TE, the sensing electrodes RE, and the dummy electrodes DE.

FIG. 18 is a diagram showing the detected shape and arrangement position of the grid patterns shown in FIG. 16.

Referring to FIG. 18, the code detection unit 21 of the touch input device 20 emits infrared light to the display panel 100 and detects touch electrodes (SEN), grid patterns (GT), and code patterns (CP). Detect infrared light reflected from the field. The code detection unit 21 detects grid patterns (GT) and code patterns (CP) from an optical image formed in response to the amount of infrared light reflected from the touch electrodes (SEN), grid patterns (GT), and code patterns (CP). Shape images and shape data for objects can be detected.

The code detection unit 21 detects shape images and shape data for the grid patterns (GT) from the optical image. Specifically, the code detection unit 21 has the highest infrared light reflectance among the touch electrodes (SEN), grid patterns (GT), and code patterns (CP), and thus the shape and arrangement position of the grid patterns (GT) with a large amount of infrared light. is detected from the optical image, and shape data for the grid patterns (GT) is provided to the code processor 23.

The code detection unit 21 of the touch input device 20 continuously detects grid patterns (GT) according to the user's control and movement, and continuously generates shape data containing the shape and position information of the grid patterns (GT). Thus, it can be provided to the code processor 23.

FIG. 19 is a diagram showing the detected shape and arrangement position of the code patterns shown in FIG. 16.

Referring to FIG. 19, the code detector 21 detects code patterns (CP) from an optical image formed in response to the amount of infrared light reflected from the touch electrodes (SEN), grid patterns (GT), and code patterns (CP). Shape images and shape data can be detected.

Specifically, the code detection unit 21 determines the shape and arrangement position of the code patterns (CP) with the lowest infrared light reflectance among the touch electrodes (SEN), grid patterns (GT), and code patterns (CP) and thus have a small amount of infrared light. is detected from the optical image, and shape data for the code patterns (CP) is provided to the code processor 23.

The code detection unit 21 of the touch input device 20 continuously detects code patterns (CP) according to the user's control and movement, and continuously generates shape data containing the shape and position information of the code patterns (CP). Thus, it can be provided to the code processor 23.

FIG. 20 is a diagram for explaining a method of forming a plurality of grid reference lines according to the arrangement positions of the grid patterns shown in FIG. 18. And, FIG. 21 is a diagram for explaining a method of detecting touch position coordinates according to a result of comparing the arrangement positions of a plurality of grid reference lines and code patterns shown in FIGS. 18 and 19.

Referring to FIGS. 20 and 21 , the code processor 23 continuously receives shape data of grid patterns (GT) and code patterns (CP) from the code detector 21. Then, the shape and arrangement structure of the grid patterns (GT) and code patterns (CP) are identified, respectively, to extract or generate coordinate data.

Specifically, the code processor 23 connects the arrangement positions of the grid patterns (GT) with a straight line based on the arrangement positions of the grid patterns (GT) included in the shape data of the grid patterns (GT) to form a plurality of grid reference lines ( GTL1 to GTLn) can be generated.

As shown in FIG. 21, the code processor 23 matches and compares the plurality of grid reference lines (GTL1 to GTLn) with the shape data of the code patterns (CP). At this time, the code processor 23 matches and compares the arrangement positions of the plurality of grid reference lines (GTL1 to GTLn) and the code patterns (CP). And the code processor 23 compares the matched comparison result shape image or shape data with the arrangement position comparison result shape image or shape data stored in the memory 25, thereby extracting touch position coordinates and coordinate data according to the comparison result. can do.

The code processor 23 transmits coordinate data including touch position coordinates to the display device 10 through the communication module 24. In this way, the code processor 23 continuously generates touch position coordinates and coordinate data corresponding to the shape as a result of comparing the arrangement positions of the plurality of grid reference lines (GTL1 to GTLn) and the code patterns (CP), thereby performing complex calculations and corrections. Coordinate data can be quickly generated in real time without any need.

22 and 23 are perspective views showing a display device according to another embodiment of the present invention.

22 and 23 illustrate that the display device 10 is a foldable display device that is folded in the first direction (X-axis direction). The display device 10 can maintain both a folded state and an unfolded state. The display device 10 may be folded using an in-folding method in which the front surface is disposed on the inside. When the display device 10 is bent or folded in an in-folding manner, the front surfaces of the display devices 10 may be arranged to face each other. Alternatively, the display device 10 may be folded using an out-folding method in which the front surface is disposed on the outside. When the display device 10 is bent or folded in an out-folding manner, the back surfaces of the display device 10 may be arranged to face each other.

The first non-folding area NFA1 may be disposed on one side, for example, on the right side of the folding area FDA. The second non-folding area NFA2 may be disposed on the other side of the folding area FDA, for example, on the left side. A touch sensing unit (TSU) according to an embodiment of the present specification may be formed and disposed on the first non-folding area (NFA1) and the second non-folding area (NFA2), respectively.

The first folding line FOL1 and the second folding line FOL2 extend in the second direction (Y-axis direction), and the display device 10 can be folded in the first direction (X-axis direction). Because of this, the length of the display device 10 in the first direction (X-axis direction) can be reduced by approximately half, making it convenient for the user to carry the display device 10.

Meanwhile, the extension direction of the first folding line FOL1 and the extension direction of the second folding line FOL2 are not limited to the second direction (Y-axis direction). For example, the first folding line FOL1 and the second folding line FOL2 extend in the first direction (X-axis direction), and the display device 10 may be folded in the second direction (Y-axis direction). . In this case, the length of the display device 10 in the second direction (Y-axis direction) may be reduced by approximately half. Alternatively, the first folding line FOL1 and the second folding line FOL2 may extend in a diagonal direction of the display device 10 between the first direction (X-axis direction) and the second direction (Y-axis direction). You can. In this case, the display device 10 may be folded into a triangular shape.

When the first folding line FOL1 and the second folding line FOL2 extend in the second direction (Y-axis direction), the length of the folding area FDA in the first direction (X-axis direction) is extended in the second direction ( It may be shorter than the length in the Y-axis direction. Additionally, the length of the first non-folding area NFA1 in the first direction (X-axis direction) may be longer than the length of the folding area FDA in the first direction (X-axis direction). The length of the second non-folding area NFA2 in the first direction (X-axis direction) may be longer than the length of the folding area FDA in the first direction (X-axis direction).

The first display area DA1 may be disposed on the front of the display device 10 . The first display area DA1 may overlap the folding area FDA, the first non-folding area NFA1, and the second non-folding area NFA2. Therefore, when the display device 10 is unfolded, an image can be displayed in the front direction in the folding area (FDA), the first non-folding area (NFA1), and the second non-folding area (NFA2) of the display device 10. there is.

The second display area DA2 may be disposed on the back of the display device 10 . The second display area DA2 may overlap the second non-folding area NFA2. Therefore, when the display device 10 is folded, an image can be displayed toward the front in the second non-folding area NFA2 of the display device 10.

22 and 23 illustrate that the through hole TH in which the camera SDA is formed is disposed in the first non-folding area NFA1, but the present invention is not limited thereto. The through hole TH or the camera SDA may be disposed in the second non-folding area NFA2 or the folding area FDA.

24 and 25 are perspective views showing a display device according to another embodiment of the present invention.

24 and 25 illustrate that the display device 10 is a foldable display device that is folded in the second direction (Y-axis direction). The display device 10 can maintain both the folded and unfolded states. The display device 10 may be folded using an in-folding method in which the front surface is disposed on the inside. When the display device 10 is bent or folded in an in-folding manner, the front surfaces of the display devices 10 may be arranged to face each other. Alternatively, the display device 10 may be folded using an out-folding method in which the front surface is disposed on the outside. When the display device 10 is bent or folded in an out-folding manner, the back surfaces of the display device 10 may be arranged to face each other.

The display device 10 may include a folding area (FDA), a first non-folding area (NFA1), and a second non-folding area (NFA2). The folding area FDA may be an area where the display device 10 is folded, and the first non-folding area NFA1 and the second non-folding area NFA2 may be areas where the display device 10 is not folded. The first non-folding area NFA1 may be disposed on one side, for example, on the lower side of the folding area FDA. The second non-folding area NFA2 may be disposed on the other side of the folding area FDA, for example, on the upper side.

A touch sensing unit (TSU) according to an embodiment of the present specification may be formed and disposed on the first non-folding area (NFA1) and the second non-folding area (NFA2), respectively.

On the other hand, the folding area FDA may be an area bent at a predetermined curvature in the first folding line FOL1 and the second folding line FOL2. Therefore, the first folding line FOL1 is the boundary between the folding area FDA and the first non-folding area NFA1, and the second folding line FOL2 is the boundary between the folding area FDA and the second non-folding area NFA2. It may be the boundary of .

The first folding line FOL1 and the second folding line FOL2 extend in the first direction (X-axis direction) as shown in FIGS. 24 and 25, and the display device 10 extends in the second direction (Y-axis direction). It can be folded. Because of this, the length of the display device 10 in the second direction (Y-axis direction) can be reduced by approximately half, making it convenient for the user to carry the display device 10.

Meanwhile, the extension direction of the first folding line FOL1 and the extension direction of the second folding line FOL2 are not limited to the first direction (X-axis direction). For example, the first folding line FOL1 and the second folding line FOL2 extend in the second direction (Y-axis direction), and the display device 10 may be folded in the first direction (X-axis direction). . In this case, the length of the display device 10 in the first direction (X-axis direction) may be reduced by approximately half. Alternatively, the first folding line FOL1 and the second folding line FOL2 may extend in a diagonal direction of the display device 10 between the first direction (X-axis direction) and the second direction (Y-axis direction). You can. In this case, the display device 10 may be folded into a triangular shape.

When the first folding line FOL1 and the second folding line FOL2 extend in the first direction (X-axis direction) as shown in FIGS. 24 and 25, the second direction (Y-axis direction) of the folding area FDA The length of may be shorter than the length in the first direction (X-axis direction). Additionally, the length of the first non-folding area NFA1 in the second direction (Y-axis direction) may be longer than the length of the folding area FDA in the second direction (Y-axis direction). The length of the second non-folding area NFA2 in the second direction (Y-axis direction) may be longer than the length of the folding area FDA in the second direction (Y-axis direction).

The first display area DA1 may be disposed on the front of the display device 10 . The first display area DA1 may overlap the folding area FDA, the first non-folding area NFA1, and the second non-folding area NFA2. Therefore, when the display device 10 is unfolded, an image can be displayed in the front direction in the folding area (FDA), the first non-folding area (NFA1), and the second non-folding area (NFA2) of the display device 10. there is.

The second display area DA2 may be disposed on the back of the display device 10 . The second display area DA2 may overlap the second non-folding area NFA2. Therefore, when the display device 10 is folded, an image can be displayed toward the front in the second non-folding area NFA2 of the display device 10.

24 and 25 illustrate that the through hole TH where the camera SDA is placed is located in the second non-folding area NFA2, but the present invention is not limited thereto. The through hole TH may be disposed in the first non-folding area NFA1 or the folding area FDA.

Although embodiments of the present invention have been described above with reference to the attached drawings, those skilled in the art will understand that the present invention can be implemented in other specific forms without changing its technical idea or essential features. You will be able to understand it. Therefore, the embodiments described above should be understood in all respects as illustrative and not restrictive.

10: display device 20: touch input device
21: code detection unit 23: code processor
100: display panel 200: display driving unit
300: circuit board 400: touch driving unit
500: main processor 600: communication department
CP: Chord Pattern GT: Multiple Grid Patterns

Claims (20)

A display unit including a plurality of light emitting areas;
a plurality of touch electrodes disposed between the plurality of light-emitting areas to detect a touch;
a plurality of grid patterns separated from the plurality of touch electrodes in a preset shape or formed integrally with the plurality of touch electrodes; and
It includes a plurality of code patterns formed in a preset code shape on some front areas corresponding to the plurality of touch electrodes,
The plurality of grid patterns are patterns that become grid reference points of grid reference lines formed in a touch input device, and are each formed at positions corresponding to the grid reference points.
According to claim 1,
The plurality of grid patterns are
A display device formed in an island shape separated from the plurality of touch electrodes at the positions of the grid reference points.
According to clause 2,
The plurality of grid patterns are
A display device in which the width or area in at least one of the horizontal, vertical, and diagonal directions on a plane is formed to be wider than the width or area of each of the plurality of touch electrodes, so that the light reflectance is higher than that of the surrounding touch electrodes.
According to clause 2,
The plurality of grid patterns are each formed in a polygonal, circular, or elliptical shape between adjacent light emitting areas, or
is formed in the shape of a closed loop, one of a rectangle, a square, a circle, or a diamond, surrounding at least one light-emitting area,
A display device formed in a mesh structure between and around a plurality of light-emitting areas.
According to clause 2,
The plurality of code patterns are
A display device comprising a light blocking member that covers some of the plurality of touch electrodes with a preset area to form a preset planar code shape.
According to clause 5,
The plurality of code patterns are
A display device formed between the plurality of grid patterns at preset intervals so as not to overlap each of the plurality of grid patterns.
According to clause 5,
The plurality of code patterns are
is formed in the shape of a closed loop, one of a rectangle, a square, a circle, or a diamond, surrounding at least one light-emitting area, or
A display device formed in a mesh structure between and around a plurality of light-emitting areas.
According to clause 5,
The plurality of code patterns are
A display device formed with a width wider than the front and side widths of the plurality of touch electrodes.
A display device that displays images; and
A touch input device that inputs a touch to the display device,
The display device is,
A display unit including a plurality of light emitting areas;
a plurality of touch electrodes disposed between the plurality of light-emitting areas to detect a touch;
a plurality of grid patterns separated from the plurality of touch electrodes in a preset shape or formed integrally with the plurality of touch electrodes; and
It includes a plurality of code patterns formed in a preset code shape on some front areas corresponding to the plurality of touch electrodes,
The plurality of grid patterns are patterns that serve as grid reference points of grid reference lines formed to calculate touch coordinates in the touch input device, and are each formed at positions corresponding to the grid reference points.
According to clause 9,
The plurality of grid patterns are
A touch input system formed in an island shape separated from the plurality of touch electrodes at the positions of the grid reference points.
According to claim 10,
The plurality of grid patterns are
A touch input system in which the width or area in at least one of the horizontal, vertical, and diagonal directions on a plane is formed to be wider than that of each of the plurality of touch electrodes, so that the light reflectance is higher than that of the surrounding touch electrodes.
According to claim 10,
The plurality of grid patterns are each formed in a polygonal, circular, or elliptical shape between adjacent light emitting areas, or
is formed in the shape of a closed loop, one of a rectangle, a square, a circle, or a diamond, surrounding at least one light-emitting area,
A touch input system formed in a mesh structure between and around a plurality of light-emitting areas.
According to claim 10,
The plurality of code patterns are
A touch input system comprising a light blocking member that covers some of the plurality of touch electrodes with a preset area to form a preset flat code shape.
According to claim 13,
The plurality of code patterns are
A touch input system formed between the plurality of grid patterns at preset intervals so as not to overlap each of the plurality of grid patterns.
According to claim 13,
The plurality of code patterns are
is formed in the shape of a closed loop, one of a rectangle, a square, a circle, or a diamond, surrounding at least one light-emitting area, or
A touch input system formed in a mesh structure between and around a plurality of light-emitting areas.
According to claim 13,
The plurality of code patterns are
A touch input system formed with a width wider than the front and side widths of the plurality of touch electrodes.
According to claim 10,
The touch input device is
a code detection unit detecting grid pattern shape data and code pattern shape data by detecting the plurality of grid patterns and the plurality of code patterns; and
A touch input system comprising a code processor that extracts coordinate data by identifying the shapes and arrangement structures of the plurality of grid patterns and the plurality of code patterns, respectively.
According to claim 17,
The code detection unit
Generating the grid pattern shape data according to the amount of reflected light reflected from the plurality of grid patterns, reflection shape, and arrangement position,
A touch input system that generates and outputs the code pattern shape data according to the reflection shape reflected from the plurality of code patterns and the arrangement position.
According to clause 18,
The code processor is
A touch input system for extracting and forming the plurality of grid reference lines by connecting the arrangement positions of the plurality of grid patterns with a straight line based on the arrangement positions of the plurality of grid patterns included in the grid pattern shape data.
According to clause 19,
The code processor is
Match and compare the plurality of grid reference lines with the code pattern shape data to extract touch position coordinates and coordinate data according to the comparison result,
A touch input system that transmits the touch location coordinates and the coordinate data to the display device.

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