Display device and position input system including the same

Abstract

A display device and a position input system including the same are presented. In one embodiment, another display device comprises a display portion including a plurality of light-emitting regions, a plurality of touch electrodes disposed between the plurality of light-emitting regions to detect a touch, and a plurality of position code patterns formed by covering touch electrodes corresponding to preset position code pattern forming regions among the plurality of touch electrodes, wherein at least one direction width or width of the touch electrodes formed in the position code pattern forming regions is formed to be wider than at least one direction width or width of the position code pattern formed on the front surface.

Description

Technology Field

[0001] The present invention relates to a display device and a position input system including the same. Background Technology

[0002] As the information society develops, the demand for display devices for displaying images is increasing in various forms. For example, display devices are being applied to a wide range of electronic devices, such as smartphones, digital cameras, laptop computers, navigation systems, and smart televisions. Display devices may be flat panel display devices, such as Liquid Crystal Display Devices, Field Emission Display Devices, and Organic Light Emitting Display Devices. Among these flat panel display devices, light-emitting display devices include light-emitting elements in which each pixel of the display panel can emit light independently, thereby enabling the display of images without a backlight unit that provides light to the display panel.

[0003] Recent display devices support touch input using a part of the user's body (e.g., a finger) and touch input using an electronic pen. In particular, by detecting a pointer such as an electronic pen or its usage location, the display device can detect input using an electronic pen more precisely than when only touch input using a part of the user's body is used. The problem to be solved

[0004] The problem that the present invention aims to solve is to provide a display device capable of performing position coordinate input of a position input device, such as an electronic pen, using position code patterns of a display panel, and a position input system including the same.

[0005] In addition, the problem that the present invention aims to solve is to provide a display device and a position input system including the same that can resolve the visibility issue of position code patterns by improving the pattern width and shape of touch electrodes corresponding to the formation areas of the position code patterns.

[0006] The problems of the present invention are not limited to those mentioned above, and other unmentioned technical problems will be clearly understood by those skilled in the art from the description below. means of solving the problem

[0007] A display device according to one embodiment for solving the above problem comprises a display unit including a plurality of light-emitting regions, a plurality of touch electrodes disposed between the plurality of light-emitting regions to detect touch, and a plurality of position code patterns formed by covering touch electrodes corresponding to preset position code pattern forming regions among the plurality of touch electrodes, wherein at least one direction width or width of the touch electrodes formed in the position code pattern forming regions is formed to be wider than at least one direction width or width of the position code pattern formed on the front surface.

[0008] The plurality of light-emitting regions are arranged in a horizontal or vertical stripe structure or in a pentile matrix structure, and the plurality of touch electrodes include a plurality of driving electrodes, a plurality of sensing electrodes, and a plurality of dummy electrodes, and the plurality of driving electrodes, the plurality of sensing electrodes, and the plurality of dummy electrodes can be formed into a mesh structure that surrounds both the spaces between and the periphery of the plurality of light-emitting regions.

[0009] The area of ​​the touch electrodes formed in the above-mentioned location code pattern forming regions can be formed as a larger area than the area of ​​the location code patterns formed overlapping or correspondingly on the front surface.

[0010] The width of the position code patterns formed in at least one direction in the above position code pattern forming regions can be formed with the same width as the width of the plurality of touch electrodes formed in the surrounding regions where the position code patterns are not formed.

[0011] The width of the position code patterns formed in at least one direction in the position code pattern forming regions may be narrower than the width of the touch electrodes formed in the position code pattern forming regions and wider than the width of the plurality of touch electrodes formed in the surrounding regions where the position code patterns are not formed.

[0012] The width or area of ​​at least one of the X-axis and Y-axis directions and the first to fourth directions of the touch electrodes formed in the above-mentioned position code pattern forming regions is formed with a wider width than the width or area of ​​the X-axis and Y-axis directions and the first to fourth directions of the position code pattern formed on the front surface, and the X-axis and Y-axis directions are vertical and horizontal directions, and the first to fourth directions may be diagonal directions with respect to the X-axis and Y-axis directions.

[0013] The planar code pattern shape of the above position code patterns may be formed as at least one polygonal pattern shape among a rectangular pattern, a square pattern, a rhombus pattern, a pentagonal pattern, and a hexagonal pattern. The touch electrodes formed in the above position code pattern forming areas may be formed as at least one polygonal pattern shape among the rectangular pattern, a square pattern, a rhombus pattern, a pentagonal pattern, and a hexagonal pattern so that the above position code patterns overlap.

[0014] The planar code pattern shape of the above position code patterns may be formed as at least one polygonal closed-loop pattern shape among a rectangular pattern, a square pattern, a rhombus pattern, a pentagonal pattern, and a hexagonal pattern surrounding at least one of the plurality of light-emitting regions. The touch electrodes formed in the position code pattern forming regions may be formed as at least one polygonal closed-loop pattern shape among a rectangular pattern, a square pattern, a rhombus pattern, a pentagonal pattern, and a hexagonal pattern surrounding one light-emitting region so that the position code patterns overlap.

[0015] The touch electrodes formed in the above-mentioned location code pattern forming regions include protrusions that protrude in at least one lateral or vertical direction of the location code patterns, and the protrusions may be formed in at least one polygonal shape among a triangular shape, a square shape, and a trapezoidal shape. The width of the touch electrodes, including the width of the protrusions, may be formed to be wider than the width of the location code patterns.

[0016] The planar code pattern shape of the above position code patterns is formed as a planar mesh pattern shape by surrounding the outer edges and between the plurality of light-emitting regions formed in the above position code pattern forming regions, and the touch electrodes formed in the above position code pattern forming regions can be formed as a planar mesh pattern shape by surrounding the outer edges and between the plurality of light-emitting regions so that the above position code patterns overlap.

[0017] The planar code pattern shape of the above position code patterns can be formed as an open loop pattern shape that partially surrounds the outer edge of at least one light-emitting area formed in the above position code pattern forming regions. The touch electrodes formed in the above position code pattern forming regions can be formed as an open loop pattern shape that partially surrounds the outer edge of the at least one light-emitting area so that the above position code patterns overlap.

[0018] The planar code pattern shape of the above position code patterns may be formed as at least one pattern shape among a straight line and curve shape of a preset length between a plurality of light-emitting regions formed in the position code pattern forming regions, a cross pattern shape, and an irregular polygonal pattern shape with curvature. The touch electrodes formed in the above position code pattern forming regions may be formed as at least one pattern shape among a straight line and curve shape of a preset length between the plurality of light-emitting regions, a cross pattern shape, and an irregular polygonal pattern shape with curvature so that the position code patterns overlap.

[0019] The area, width in at least one direction, length in at least one direction, and width in at least one direction of each of the above-mentioned position code patterns may be formed differently from adjacent other position code patterns. The area, width in at least one direction, length in at least one direction, and width in at least one direction of each of the touch electrodes formed in the above-mentioned position code pattern forming regions may be formed differently from touch electrodes formed in adjacent other position code pattern forming regions.

[0020] In addition, a position input system of one embodiment for solving the above problem includes a display device for displaying an image and a position input device for inputting position coordinate data to the display device. The display device includes a display portion including a plurality of light-emitting regions, a plurality of touch electrodes disposed between the plurality of light-emitting regions to detect a touch, and a plurality of position code patterns formed by covering touch electrodes corresponding to preset position code pattern forming regions among the plurality of touch electrodes, wherein at least one direction width or width of the touch electrodes formed in the position code pattern forming regions may be formed wider than at least one direction width or width of the position code pattern formed on the front surface.

[0021] The above-described location input device may include a code detection unit that detects the location code pattern, a code processor that receives shape data for the location code pattern, extracts a data code corresponding to the shape of the location code pattern, and generates the location coordinate data corresponding to the data code, and a communication module that transmits the location coordinate data to the display device.

[0022] The plurality of light-emitting regions are arranged in a horizontal or vertical stripe structure or in a pentile matrix structure, and the plurality of touch electrodes include a plurality of driving electrodes, a plurality of sensing electrodes, and a plurality of dummy electrodes, and the plurality of driving electrodes, the plurality of sensing electrodes, and the plurality of dummy electrodes can be formed into a mesh structure that surrounds both the spaces between and the periphery of the plurality of light-emitting regions.

[0023] The area of ​​the touch electrodes formed in the above-mentioned location code pattern forming regions can be formed as a larger area than the area of ​​the location code patterns formed overlapping or correspondingly on the front surface.

[0024] The width of the position code patterns formed in at least one direction in the above position code pattern forming regions can be formed with the same width as the width of the plurality of touch electrodes formed in the surrounding regions where the position code patterns are not formed.

[0025] The width of the position code patterns formed in at least one direction in the position code pattern forming regions may be narrower than the width of the touch electrodes formed in the position code pattern forming regions and wider than the width of the plurality of touch electrodes formed in the surrounding regions where the position code patterns are not formed.

[0026] The width or area of ​​at least one of the X-axis and Y-axis directions and the first to fourth directions of the touch electrodes formed in the above-mentioned position code pattern forming regions is formed with a wider width than the width or area of ​​the X-axis and Y-axis directions and the first to fourth directions of the position code pattern formed on the front surface, and the X-axis and Y-axis directions are vertical and horizontal directions, and the first to fourth directions may be diagonal directions with respect to the X-axis and Y-axis directions. Effects of the invention

[0027] According to the display device and the position input system including the same according to the embodiments, position coordinate data of a position input device, such as an electronic pen, can be generated using position code patterns of a display panel without complex calculations and corrections, and position coordinate input of the position input device can be performed. In particular, a position input function based on accurate input coordinates can be performed, and costs can be reduced, power consumption reduced, and the driving process simplified.

[0028] In addition, according to the display device and the position input system including the same according to the embodiments, the visibility issue of position code patterns can be resolved by improving the pattern width and shape of the touch electrodes corresponding to the formation area of ​​the position code patterns.

[0029] The effects according to the embodiments are not limited to those exemplified above, and a wider variety of effects are included in this specification. Brief explanation of the drawing

[0030] FIG. 1 is a configuration diagram showing a position input system according to one embodiment of the present invention. FIG. 2 is a configuration block diagram specifically showing the display device and position input device illustrated in FIG. 1. FIG. 3 is a perspective view specifically showing the configuration of the display device illustrated in FIG. 1. FIG. 4 is a cross-sectional view specifically showing the configuration of the display device illustrated in FIG. 1 and FIG. 3. FIG. 5 is a plan view showing a display portion of a display device according to one embodiment. FIG. 6 is a plan view showing a touch sensing part of a display device according to one embodiment. FIG. 7 is an enlarged view specifically showing the pattern shape of the touch electrodes and position code patterns formed in the A1 region of FIG. 6. FIG. 8 is an enlarged view specifically showing an A1 region in which touch electrodes and position code patterns are arranged according to the first embodiment. FIG. 9 is an enlarged view specifically showing the pattern shape of the touch electrodes and position code patterns in the B1 region shown in FIG. 6. FIG. 10 is a cross-sectional view specifically illustrating the I-I' cross-sectional structure of FIG. 9 according to one embodiment. FIG. 11 is a cross-sectional view showing the II' cross-sectional structure of FIG. 10 in a simplified block format. FIG. 12 is a cross-sectional view showing the I-I' cross-sectional structure of FIG. 9 in a simplified block form according to another embodiment. FIG. 13 is an enlarged view specifically showing a B1 area in which touch electrodes and position code patterns are arranged according to a second embodiment. FIG. 14 is an enlarged view specifically showing a B1 area in which touch electrodes and position code patterns are arranged according to a third embodiment. FIG. 15 is an enlarged view specifically showing a B1 area in which touch electrodes and position code patterns are arranged according to the fourth embodiment. FIG. 16 is an enlarged view specifically showing a B1 area in which touch electrodes and position code patterns are arranged according to the fifth embodiment. FIGS. 17 and FIGS. 18 are perspective views showing a display device according to another embodiment of the present invention. FIGS. 19 and FIGS. 20 are perspective views showing a display device according to another embodiment of the present invention. Specific details for implementing the invention

[0031] The advantages and features of the present invention and the methods for achieving them will become clear by referring to the embodiments described below in detail together with the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below but may be implemented in various different forms. These embodiments are provided merely to ensure that the disclosure of the present invention is complete and to fully inform those skilled in the art of the scope of the invention, and the present invention is defined only by the scope of the claims.

[0032] When elements or layers are referred to as being "on" another element or layer, this includes cases where another layer or element is interposed directly on or in the middle of another element. Throughout the specification, the same reference numerals refer to the same components. Shapes, sizes, ratios, angles, numbers, etc., disclosed in the drawings for describing embodiments are exemplary and therefore the invention is not limited to the depicted details.

[0033] Although terms such as "first," "second," etc., are used to describe various components, it goes without saying that these components are not limited by these terms. These terms are used merely to distinguish one component from another. Therefore, it goes without saying that the first component mentioned below may also be the second component within the technical scope of the present invention.

[0034] The features of each of the various embodiments of the present invention may be combined or combined with one another, either partially or wholly, and may technically enable various interlocking and operation. Each embodiment may be implemented independently of one another or may be implemented together in an associated relationship.

[0035] Specific embodiments will be described below with reference to the attached drawings.

[0036] FIG. 1 is a configuration diagram showing a position input system according to one embodiment of the present invention. FIG. 2 is a configuration block diagram specifically showing the display device and the position input device shown in FIG. 1.

[0037] Referring to FIGS. 1 and 2, the display device (10) can be applied to portable electronic devices such as mobile phones, smartphones, tablet personal computers, mobile communication terminals, electronic notebooks, e-books, portable multimedia players (PMPs), navigation systems, and ultra mobile PCs (UMPCs). Alternatively, the display device (10) can be applied to a television, laptop, monitor, billboard, or display unit of the Internet of Things (IOT). As another example, the display device (10) can also be applied to wearable devices such as smart watches, watch phones, glasses displays, and head-mounted displays (HMDs).

[0038] The display device (10) may be an organic light-emitting display device using an organic light-emitting diode, a quantum dot light-emitting display device including a quantum dot light-emitting layer, an inorganic light-emitting display device including an inorganic semiconductor, and a micro light-emitting display device using a micro or nano light-emitting diode. In the following description, the display device (10) is described mainly as being an organic light-emitting display device, but is not limited thereto.

[0039] The display device (10) includes a display panel (100), a display driving unit (200), a touch driving unit (400), a main processor (500), and a communication unit (600).

[0040] The display device (10) utilizes a position input device (20), such as an electronic pen, as a means for inputting position coordinates. The display panel (100) of the display device (10) may include a display unit (DU) for displaying images and a touch sensing unit (TSU) for detecting touches from a human body part, such as a finger, and a touch pen.

[0041] The display unit (DU) of the display panel (100) includes a plurality of unit pixels and can display an image through the plurality of unit pixels. A touch sensing unit (TSU) can be mounted and attached to the front surface of the display panel (100). The touch sensing unit (TSU) includes a plurality of touch electrodes and can detect touches from a user's body part and a touch pen, etc., in a capacitive manner on the front surface of the display panel (100). Here, position code patterns are formed on some of the touch electrodes among the plurality of touch electrodes so that the position code patterns are detected by the position input device (20).

[0042] The position code patterns of the display panel (100) are composed of a light-blocking member that covers some of the multiple touch electrodes with a predetermined area to form a pre-set flat code shape. Accordingly, the position code patterns are detected by the position input device (20) according to the shape and size (or area) of the flat code pattern of the light-blocking member. The position code patterns formed by the light-blocking member absorb or block external light incident on the front. However, the remaining touch electrodes where position code patterns are not formed may reflect the external light incident on the front back to the front. Accordingly, as the difference in brightness between the position code patterns due to light blocking and the front brightness of the touch electrodes where position code patterns are not formed increases, the position code patterns may become visible to the user. In other words, a visibility issue may arise where the position code patterns are visible to the user.

[0043] In one embodiment, the visibility of location code patterns to the user's eye can be reduced by minimizing the difference in brightness between the area where location code patterns are formed and the front brightness of touch electrodes where location code patterns are not formed. To this end, the pattern width and area of ​​the touch electrodes formed in the area where location code patterns are patterned can be formed wider than the location code patterns. Accordingly, touch electrodes formed with a wider width than the location code patterns can reflect external light even in the area where location code patterns are formed. In this way, by the touch electrodes reflecting external light even in the area where location code patterns are formed, the difference in brightness between the area where location code patterns are formed and the front brightness of touch electrodes where location code patterns are not formed can be reduced.

[0044] The display driver (200) can output signals and voltages to drive the display unit (DU) of the display panel (100). The display driver (200) can supply data voltages to the data lines. The display driver (200) can supply power voltage to the power lines and supply gate control signals to the gate driver.

[0045] The touch driving unit (400) can be connected to the touch sensing unit (TSU). The touch driving unit (400) supplies a touch driving signal to a plurality of touch electrodes of the touch sensing unit (TSU) and can sense the amount of change in capacitance between the plurality of touch electrodes. The touch driving unit (400) can calculate whether a user has made a touch input and the touch coordinates based on the amount of change in capacitance between the plurality of touch electrodes.

[0046] The main processor (500) can control all functions of the display device (10). For example, the main processor (500) can supply digital video data to the display driver (200) so that the display panel (100) displays an image. Additionally, the main processor (500) can receive touch data from the touch driver (400), determine the user's touch coordinates, and then generate digital video data according to the touch coordinates or execute an application indicated by an icon displayed at the user's touch coordinates.

[0047] Meanwhile, the main processor (500) receives location coordinate data from the location input device (20) and determines the location coordinates of the pointer or placement direction of the location input device (20). Then, the main processor (500) can generate digital video data according to the pointer or placement location coordinates of the location input device (20), or execute an application indicated by an icon displayed at the placement location coordinates of the location input device (20).

[0048] The communication unit (600) can perform wired or wireless communication with an external device. For example, the communication unit (600) can transmit and receive communication signals with the communication module (24) of the location input device (20). The communication unit (600) may receive location coordinate data composed of data codes from the location input device (20) and may provide the location coordinate data to the main processor (500).

[0049] The position input device (20) may be positioned in the front direction of the display panel (100) depending on the user's use. The position input device (20) detects pointers or placement position coordinates in the front direction of the display panel (100) by recognizing position code patterns of the display panel (100) in the front direction of the display panel (100). Specifically, the position input device (20) detects light reflected from the position code patterns of the display panel (100) using an optical method. Then, based on the detected light, it can detect position code patterns and generate position coordinate data according to the position code patterns. Such a position input device (20) may be an electronic pen, such as a smart pen in the shape of a writing instrument, but is not limited to merely the form or structure of a writing instrument.

[0050] Specifically, the position 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).

[0051] A code detection unit (21) is positioned adjacent to the pen tip of a position input device (20) to detect position code patterns included in a display panel (100) of a display device (10). To this end, the code detection unit (21) includes a light emitting unit (21(a)) that emits infrared light using at least one infrared light source, and a light receiving unit (21(b)) that detects infrared light reflected from position code patterns using an infrared camera.

[0052] At least one infrared light source included in the emitting unit (21(a)) may be configured as an infrared LED array with a matrix structure. Additionally, the infrared camera of the receiving unit (21(b)) may include a filter that blocks wavelength bands other than infrared and passes infrared, a lens system that focuses infrared passing through the filter, and an optical image sensor that converts the optical image formed by the lens system into an electrical image signal and outputs it. The optical image sensor is configured as an array with a matrix structure, similar to the infrared LED array, and can provide shape data of the position code patterns to the code processor (23) according to the shape of the infrared reflected from the position code patterns of the display unit (DU). In this way, the code detection unit (21) of the position input device (20) can continuously detect the position code patterns included in the display unit (DU) according to the user's control and movement, and continuously generate shape data of the position code patterns and provide it to the code processor (23).

[0053] The code processor (23) can continuously receive shape data of position code patterns from the code detection unit (21). For example, the code processor (23) can continuously receive shape data for position code patterns and can identify the arrangement structure and shape of the position code patterns. The code processor (23) can extract or generate a data code corresponding to the arrangement structure and shape of the position code patterns, and can combine the data codes to extract or generate position coordinate data corresponding to the combined data code. The code processor (23) can transmit the generated position coordinate data to the display device (10) through the communication module (24). In particular, the code processor (23) can receive shape data of the position code patterns and generate and convert data codes corresponding to each of the position code patterns, thereby rapidly generating coordinate data without complex calculations and corrections.

[0054] The communication module (24) can perform wired or wireless communication with an external device. For example, the communication module (24) can transmit and receive communication signals with the communication unit (600) of the display device (10). The communication module (24) can receive location coordinate data composed of data codes from the code processor (23) and can provide the location coordinate data to the communication unit (600).

[0055] The memory (25) can store data necessary for operating the position input device (20). The memory (25) stores shape data of position code patterns and data codes corresponding to each shape data and position code pattern. Additionally, the memory (25) stores data codes and position coordinate data corresponding to combinations of data codes. The memory (25) shares the data codes corresponding to each shape data and position code pattern, and the position coordinate data corresponding to combinations of data codes, with the code processor (23). Accordingly, the code processor (23) can combine data codes using the data codes and position coordinate data stored in the memory (25), and can extract or generate position coordinate data corresponding to the combined data codes.

[0056] FIG. 3 is a perspective view specifically showing the configuration of the display device illustrated in FIG. 1. FIG. 4 is a cross-sectional view specifically showing the configuration of the display device illustrated in FIG. 1 and FIG. 3.

[0057] Referring to FIGS. 3 and 4, the display device (10) may be formed in a planar shape similar to a rectangle. For example, the display device (10) may have a planar shape similar to a rectangle having a short side in the X-axis direction and a long side in the Y-axis direction. The corners where the short side in the X-axis direction and the long side in the Y-axis direction meet may be formed rounded to have a predetermined curvature or formed at a right angle. The planar shape of the display device (10) is not limited to a rectangle and may be formed similarly to other polygons, circles, or ellipses. The display panel (100) may be formed flat, but is not limited thereto. For example, the display panel (100) includes curved surfaces formed at the left and right ends that have a constant curvature or a changing curvature. The display panel (100) may be formed flexibly to allow bending, folding, and rolling.

[0058] A display panel (100) may include a main area (MA) and a sub area (SBA). The main area (MA) includes a display area (DA) that displays an image and a non-display area (NDA) which is a peripheral area of ​​the display area (DA). The display area (DA) may emit light from a plurality of unit pixels and a plurality of aperture areas (or light-emitting areas) corresponding to each unit pixel. The display panel (100) may include a pixel circuit including switching elements, a pixel defining film that defines a light-emitting area or an aperture area, and a self-light-emitting element, etc. The non-display area (NDA) may be an outer area of ​​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 gate wirings, and fan-out wirings (not shown) that connect the display driver (200) and the display area (DA).

[0059] In the display area (DA) of the display panel (100), a plurality of unit pixels are arranged in first and second directions (X-axis and Y-axis directions), and each unit pixel includes a plurality of sub-pixels. The plurality of unit pixels display an image using the plurality of sub-pixels. The plurality of sub-pixels may be arranged in a Pentile matrix structure. Alternatively, the plurality of sub-pixels may be arranged in a vertical or horizontal stripe structure. The display area (DA) in which the plurality of unit pixels are arranged may occupy most of the area of ​​the main area (MA).

[0060] The non-display area (NDA) may be an outer area of ​​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 gate wires, and fan-out wires (not shown) that connect the display driver (200) and the display area (DA).

[0061] A sub-region (SBA) may extend from one side of a main region (MA). The sub-region (SBA) may include a flexible material capable of bending, folding, rolling, etc. For example, when the sub-region (SBA) is bent, the sub-region (SBA) may overlap with the main region (MA) in the thickness direction (Z-axis direction). The sub-region (SBA) may include a pad portion connected to a display driving unit (200) and a circuit board (300). Optionally, the sub-region (SBA) may be omitted, and the display driving unit (200) and the pad portion may be placed in a non-display area (NDA).

[0062] The display driving unit (200) is formed as an integrated circuit (IC) and can be mounted on the display panel (100) using a COG (Chip on Glass) method, a COP (Chip on Plastic) method, or an ultrasonic bonding method. For example, the display driving unit (200) can be placed in a sub-region (SBA) and can be overlapped with the main area (MA) in the thickness direction (Z-axis direction) by bending the sub-region (SBA). As another example, the display driving unit (200) can be mounted on a circuit board (300).

[0063] The circuit board (300) can be attached to the pad portion of the display panel (100) by means of an anisotropic conductive film (ACF). The lead wires of the circuit board (300) can be electrically connected to the pad portion of the display panel (100). The circuit board (300) may be a flexible film such as a flexible printed circuit board, a printed circuit board, or a chip-on-film.

[0064] The touch driving unit (400) may be mounted on the circuit board (300). The touch driving unit (400) may be formed as an integrated circuit (IC). As described above, the touch driving unit (400) supplies a touch driving signal to a plurality of touch electrodes of the touch sensing unit (TSU) and can sense the amount of change in capacitance between the plurality of touch electrodes. Here, the touch driving signal may be a pulse signal having a predetermined frequency. The touch driving unit (400) calculates whether a touch input is made from a user's body part, such as a finger, and the touch coordinates based on the amount of change in capacitance between the plurality of touch electrodes.

[0065] Referring to FIG. 4, the display panel (100) may include a cross-sectional 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 element layer (EML), and an encapsulation layer (TFEL).

[0066] 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).

[0067] A thin-film transistor layer (TFTL) may be disposed on a substrate (SUB). The thin-film transistor layer (TFTL) may include a plurality of thin-film transistors that constitute a pixel circuit of pixels. The thin-film transistor layer (TFTL) may further include gate lines, data lines, power lines, gate control lines, fan-out lines connecting the display driver (200) and the data lines, and lead lines connecting the display driver (200) and the pad lines. If 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.

[0068] The thin-film transistor layer (TFTL) can be placed in a display area (DA), a non-display area (NDA), and a sub-area (SBA). The thin-film transistors, gate wiring, data wiring, and power wiring of each pixel of the thin-film transistor layer (TFTL) can be placed in the display area (DA). The gate control wiring and fan-out wiring of the thin-film transistor layer (TFTL) can be placed in the non-display area (NDA). The lead wiring of the thin-film transistor layer (TFTL) can be placed in the sub-area (SBA).

[0069] A light-emitting element layer (EML) may be disposed on a thin-film transistor layer (TFTL). The light-emitting element layer (EML) may include a plurality of light-emitting elements that emit light by sequentially stacking a first electrode, a light-emitting layer, and a second electrode, and a pixel defining film that defines pixels. The plurality of light-emitting elements of the light-emitting element layer (EML) may be disposed in a display area (DA). The light-emitting layer may be an organic light-emitting layer comprising an organic material. The light-emitting layer may include a hole transporting layer, an organic light-emitting layer, and an electron transporting layer. When the first electrode receives a predetermined voltage through a thin-film transistor of the thin-film transistor layer (TFTL) and the second electrode receives a cathode voltage, holes and electrons may move to the organic light-emitting layer through the hole transporting layer and the electron transporting layer, respectively, and may combine with each other in the organic light-emitting layer to emit light. For example, the first electrode may be an anode electrode and the second electrode may be a cathode electrode, but is not limited thereto.

[0070] As another example, a plurality of light-emitting elements may include a quantum dot light-emitting diode comprising a quantum dot light-emitting layer or an inorganic light-emitting diode comprising an inorganic semiconductor.

[0071] The encapsulation layer (TFEL) can cover the upper surface and side surface of the light-emitting element layer (EML) and can protect the light-emitting element layer (EML). The encapsulation layer (TFEL) may include at least one inorganic film and at least one organic film for encapsulating the light-emitting element layer (EML).

[0072] A touch sensing unit (TSU) may be disposed on an 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 wiring connecting the plurality of touch electrodes to a touch driving unit (400). For example, the touch sensing unit (TSU) may sense a user's touch in a self-capacitance manner or a mutual capacitance manner.

[0073] As another example, the touch sensing unit (TSU) may be disposed on a separate substrate placed on the display unit (DU). In this case, the substrate supporting the touch sensing unit (TSU) may be a base member that encapsulates the display unit (DU).

[0074] Multiple touch electrodes of the touch sensing unit (TSU) may be placed in a touch sensor area that overlaps with the display area (DA). The touch wiring of the touch sensing unit (TSU) may be placed in a touch peripheral area that overlaps with the non-display area (NDA).

[0075] A sub-region (SBA) of the display panel (100) may extend from one side of the main region (MA). The sub-region (SBA) may include a flexible material capable of bending, folding, rolling, etc. For example, when the sub-region (SBA) is bent, the sub-region (SBA) may overlap with the main region (MA) in the thickness direction (Z-axis direction). The sub-region (SBA) may include a pad portion connected to the display driving unit (200) and the circuit board (300).

[0076] FIG. 5 is a plan view showing a display portion of a display device according to one embodiment.

[0077] Referring to FIG. 5, the display area (DA) of the display unit (DU) is an area for displaying images and can be defined as the central area of ​​the display panel (100). The display area (DA) may include a plurality of subpixels (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 subpixels (SP) can be defined as a minimum unit for outputting light.

[0078] A plurality of gate wires (GL) can supply a gate signal received from a gate driver (210) to a plurality of subpixels (SP). The plurality of gate wires (GL) can be extended in the X-axis direction and can be spaced apart from each other in the Y-axis direction intersecting the X-axis direction.

[0079] A plurality of data lines (DL) can supply data voltage received from a display driving unit (200) to a plurality of subpixels (SP). The plurality of data lines (DL) can be extended in the Y-axis direction and can be spaced apart from each other in the X-axis direction.

[0080] A plurality of power lines (VL) can supply power voltage received from a display driving unit (200) to a plurality of pixels (SP). Here, the power voltage may be at least one of a driving voltage, an initialization voltage, and a reference voltage. A plurality of power lines (VL) may extend in the Y-axis direction and may be spaced apart from each other in the X-axis direction.

[0081] 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 wiring (FOL), and gate control wiring (GCL). The gate driver (210) may generate a plurality of gate signals based on a gate control signal and may sequentially supply the plurality of gate signals to a plurality of gate wiring (GL) according to a set order.

[0082] Fan-out wires (FOL) can extend from the display driver (200) to the display area (DA). The fan-out wires (FOL) can supply data voltage received from the display driver (200) to a plurality of data wires (DL).

[0083] The gate control wiring (GCL) can be extended from the display driver (200) to the gate driver (210). The gate control wiring (GCL) can supply a gate control signal received from the display driver (200) to the gate driver (210).

[0084] The sub-region (SBA) may include a display driving unit (200), a display pad area (DPA), and first and second touch pad areas (TPA1, TPA2).

[0085] The display driver (200) can output signals and voltages to drive the display panel (100) to the fan-out wires (FOL). The display driver (200) can supply a data voltage to the data wire (DL) through the fan-out wires (FOL). The data voltage can be supplied to a plurality of sub-pixels (SP) and can determine the brightness of the plurality of sub-pixels (SP). The display driver (200) can supply a gate control signal to the gate driver (210) through the gate control wire (GCL).

[0086] The display pad area (DPA), the first touch pad area (TPA1), and the second touch pad area (TPA2) may be positioned 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) may be electrically connected to the circuit board (300) using a low-resistance, high-reliability material such as an anisotropic conductive film or SAP.

[0087] The display pad area (DPA) may include a plurality of display pad sections (DPP). The plurality of display pad sections (DPP) may be connected to the main processor (500) through the circuit board (300). The plurality of display pad sections (DPP) may be connected to the circuit board (300) to receive digital video data and supply digital video data to the display driving unit (200).

[0088] FIG. 6 is a plan view showing a touch sensing part of a display device according to one embodiment.

[0089] 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 with the display area (DA) of the display unit (DU), and the touch peripheral area (TPA) may overlap with the non-display area (NDA) of the display unit (DU).

[0090] 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 magnetic capacitance to detect the touch of an object or a person. The plurality of touch electrodes (SEN) may include a plurality of driving electrodes (TE) and a plurality of sensing electrodes (RE).

[0091] A plurality of driving electrodes (TE) may be arranged in the X-axis direction and the Y-axis direction. A 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 in the Y-axis direction may be electrically connected through a plurality of connecting electrodes (CE).

[0092] A plurality of driving electrodes (TE) may be connected to a first touch pad section (TP1) through a driving wire (TL). The driving wire (TL) may include a lower driving wire (TLa) and an upper driving wire (TLb). For example, some driving electrodes (TE) positioned on the lower side of the touch sensor area (TSA) may be connected to the first touch pad section (TP1) through the lower driving wire (TLa), and other driving electrodes (TE) positioned on the upper side of the touch sensor area (TSA) may be connected to the first touch pad section (TP1) through the upper driving wire (TLb). The lower driving wire (TLa) may extend past the lower side of the touch peripheral area (TPA) to the first touch pad section (TP1). The upper driving wire (TLb) may extend to the first touch pad section (TP1) via the upper, left, and lower sides of the touch peripheral area (TPA). The first touch pad section (TP1) can be connected to the touch driving section (400) through the circuit board (300).

[0093] The connecting electrode (CE) may be bent at least once. For example, the connecting electrode (CE) may have a bracket shape (“<” or “>”), but the planar shape of the connecting electrode (CE) is not limited thereto. Driving electrodes (TE) adjacent to each other in the Y-axis direction may be electrically connected by a plurality of connecting electrodes (CE), and even if any one of the plurality of connecting electrodes (CE) is disconnected, the driving electrodes (TE) can be stably connected through the remaining connecting electrodes (CE). Driving electrodes (TE) adjacent to each other may be connected by two connecting electrodes (CE), but the number of connecting electrodes (CE) is not limited thereto.

[0094] A connecting electrode (CE) may be disposed on a different layer from a plurality of driving electrodes (TE) and a plurality of sensing electrodes (RE). Sensing electrodes (RE) adjacent to each other in the X-axis direction may be electrically connected through a connecting portion disposed on the same layer as the plurality of driving electrodes (TE) or the plurality of sensing electrodes (RE). 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. The plurality of sensing electrodes (RE) may be arranged in the X-axis direction and the Y-axis direction, and sensing electrodes (RE) adjacent to each other in the X-axis direction may be electrically connected through a connecting portion.

[0095] Driving electrodes (TE) adjacent in the Y-axis direction can be electrically connected to a plurality of driving electrodes (TE) or a plurality of sensing electrodes (RE) through connecting electrodes (CE) disposed on different layers. The connecting electrodes (CE) can be formed on the back layer (or lower layer) of the layer where the driving electrodes (TE) and sensing electrodes (RE) are formed. The connecting electrodes (CE) are electrically connected to each adjacent driving electrode (TE) through a plurality of contact holes. Accordingly, even if the connecting electrodes (CE) overlap with the plurality of sensing electrodes (RE) in the Z-axis direction, the plurality of driving electrodes (TE) and the plurality of sensing electrodes (RE) can be insulated from each other. Mutual capacitance can be formed between the driving electrode (TE) and the sensing electrode (RE).

[0096] A plurality of sensing electrodes (RE) may be connected to a second touch pad section (TP2) via sensing wiring (RL). For example, some of the sensing electrodes (RE) positioned to the right of the touch sensor area (TSA) may be connected to the second touch pad section (TP2) via sensing wiring (RL). The sensing wiring (RL) may extend to the second touch pad section (TP2) via the right and lower sides of the touch peripheral area (TPA). The second touch pad section (TP2) may be connected to a touch driving unit (400) via a circuit board (300).

[0097] 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 spaced apart from and insulated from the driving electrode (TE) or the sensing electrode (RE). Thus, the dummy electrodes (DE) may be electrically floating.

[0098] Position code patterns in the shape of a flat code are formed at preset intervals on some front regions of at least one of the plurality of driving electrodes (TE), the plurality of sensing electrodes (RE), and the plurality of dummy electrodes (DE).

[0099] The display pad area (DPA), the first touch pad area (TPA1), and the second touch pad area (TPA2) may be positioned 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) may be electrically connected to the circuit board (300) using a low-resistance, high-reliability material such as an anisotropic conductive film or SAP.

[0100] A first touch pad area (TPA1) may be disposed on one side of a display pad area (DPA) and may include a plurality of first touch pad sections (TP1). The plurality of first touch pad sections (TP1) may be electrically connected to a touch driving section (400) disposed on a circuit board (300). The plurality of first touch pad sections (TP1) may supply touch driving signals to a plurality of driving electrodes (TE) through a plurality of driving wires (TL).

[0101] 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 sections (TP2). The plurality of second touch pad sections (TP2) may be electrically connected to a touch driving unit (400) disposed on a circuit board (300). The touch driving unit (400) may receive a touch sensing signal through a plurality of sensing wires (RL) connected to the plurality of second touch pad sections (TP2) and may sense a change in mutual capacitance between a driving electrode (TE) and a sensing electrode (RE).

[0102] In another example, the touch driving unit (400) can supply a touch driving signal to each of a plurality of driving electrodes (TE) and a plurality of sensing electrodes (RE), and can receive a touch sensing signal from each of the plurality of driving electrodes (TE) and a plurality of sensing electrodes (RE). The touch driving unit (400) can sense the change in charge of each of the plurality of driving electrodes (TE) and a plurality of sensing electrodes (RE) based on the touch sensing signal.

[0103] FIG. 7 is an enlarged view specifically showing the pattern shape of the touch electrodes and location code patterns formed in the A1 region of FIG. 6. FIG. 8 is an enlarged view specifically showing the A1 region in which the touch electrodes and location code patterns according to the first embodiment are arranged.

[0104] 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 placed on the same layer and may be spaced apart from each other.

[0105] Multiple driving electrodes (TE) may be arranged in the X-axis direction and the Y-axis direction. Multiple driving electrodes (TE) may be spaced apart from each other in the X-axis direction and the Y-axis direction. Driving electrodes (TE) adjacent in the Y-axis direction may be electrically connected through a connecting electrode (CE).

[0106] A plurality of sensing electrodes (RE) may be extended in the X-axis direction and 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 the Y-axis direction, and sensing electrodes (RE) adjacent in the X-axis direction may be electrically connected. For example, the sensing electrodes (RE) may be electrically connected through a connection part, and the connection part may be positioned within the shortest distance between adjacent driving electrodes (TE).

[0107] A plurality of connecting electrodes (CE) may be disposed on a different layer from the driving electrode (TE) and the sensing electrode (RE), for example, on the back layer. The connecting electrode (CE) may include a first portion (CEa) and a second portion (CEb). For example, the first portion (CEa) of the connecting electrode (CE) may be connected to the driving electrode (TE) disposed on one side through a first contact hole (CNT1) and extend to a third direction (DR3). The second portion (CEb) of the connecting electrode (CE) may be bent from the first portion (CEa) in an area overlapping with the sensing electrode (RE) and extend to a second direction (DR2), and may be connected to the driving electrode (TE) disposed on the other side through the first contact hole (CNT1). In the following, 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, the third direction (DR3) is 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 connecting electrodes (CE) can connect adjacent driving electrodes (TE) in the Y-axis direction.

[0108] As described above, each unit pixel (PX) may include first to third subpixels or first to fourth subpixels, and each of the first to fourth subpixels may include first to fourth light-emitting regions (EA1, EA2, EA3, EA4). For example, the first light-emitting region (EA1) may emit light of a first color or red light, the second light-emitting region (EA2) may emit light of a second color or green light, and the third light-emitting region (EA3) may emit light of a third color or blue light. The fourth light-emitting region (EA4) may emit light of a fourth color or any one of the first to third colors, but is not limited thereto.

[0109] Each unit pixel (PX) can express a white gradation through the first to third light-emitting regions (EA1 to EA3) or the first to fourth light-emitting regions (EA1, EA2, EA3, EA4). Additionally, various color gradations, such as white, can be expressed by a combination of light emitted from the first to third light-emitting regions (EA1, EA2, EA3) or the first to fourth light-emitting regions (EA1, EA2, EA3, EA4).

[0110] Depending on the arrangement structure of the first to third subpixels or the first to fourth subpixels, a plurality of driving electrodes (TE), a plurality of sensing electrodes (RE), and a plurality of dummy electrodes (DE) may be formed as a planar mesh structure or a net structure.

[0111] A plurality of driving electrodes (TE), a plurality of sensing electrodes (RE), and a plurality of dummy electrodes (DE) may surround the space between and the periphery of each of the first to third light-emitting regions (EA1, EA2, EA3) or the first to fourth light-emitting regions (EA1, EA2, EA3, EA4) that form a unit pixel (PX) on a plane. Accordingly, the plurality of driving electrodes (TE), a plurality of sensing electrodes (RE), and a plurality of dummy electrodes (DE) may not overlap with the first to fourth light-emitting regions (EA1, EA2, EA3, EA4). A plurality of connecting electrodes (CE) may also not overlap with the first to fourth light-emitting regions (EA1, EA2, EA3, EA4). Accordingly, the display device (10) can prevent the brightness of light emitted from the first to fourth light-emitting regions (EA1, EA2, EA3, EA4) from being reduced by the touch sensing unit (TSU).

[0112] Each of the plurality of driving electrodes (TE) is formed to include a first portion (TEa) extended in a first direction (DR1) and a second portion (TEb) extended in a second direction (DR2), so as not to overlap with the first to fourth light-emitting regions (EA1, EA2, EA3, EA4). Additionally, each of the plurality of sensing electrodes (RE) is formed to include a first portion (REa) extended in a first direction (DR1) and a second portion (REb) extended in a second direction (DR2), so as not to overlap with the first to fourth light-emitting regions (EA1, EA2, EA3, EA4). The plurality of dummy electrodes (DE) are also formed so as not to overlap with the first to fourth light-emitting regions (EA1, EA2, EA3, EA4).

[0113] Position code patterns (CPs) are formed on a portion of the front surface of each of a plurality of dummy electrodes (DE), a plurality of driving electrodes (TE), and a plurality of sensing electrodes (RE) corresponding to preset position code pattern forming regions (CPDs). Specifically, position code patterns (CPs) may be formed at a preset interval (e.g., about 300 μm interval) on portions of the front surface of the plurality of dummy electrodes (DE), a plurality of driving electrodes (TE), and a plurality of sensing electrodes (RE). Each position code pattern (CP) is formed as a planar code shape or a planar code pattern shape of a preset size. The position code patterns (CPs) are formed to block or absorb infrared light applied from the position input device (20) to minimize the reflectance of infrared light, and can be recognized as a position code pattern (CP) by the position input device (20) according to the planar code shape with minimized infrared light reflectance.

[0114] The planar code shape of the position code patterns (CP) may be formed as at least one polygonal pattern shape among a rectangle, square, circle, semicircle, sector, and rhombus, or as a pattern shape formed by combining multiple polygonal pattern shapes. Additionally, the planar code shape of the position code patterns (CP) may be formed as a closed loop pattern shape such as a rectangle, square, rhombus, pentagon, or hexagon by surrounding at least one light-emitting area. Alternatively, the planar code pattern shape of the position code patterns (CP) may be formed as an open loop pattern shape that surrounds only a portion of at least one light-emitting area. Furthermore, the planar code shape of the position code patterns (CP) may be formed as a straight line or curved pattern shape of a preset length. Meanwhile, if the position code patterns (CP) surround both the space between and the perimeter of multiple light-emitting areas rather than a single light-emitting area, the shape of each position code pattern (CP) may be formed as a planar mesh pattern structure and a net pattern structure.

[0115] As described above, the position code patterns (CPs) formed by the light-blocking material absorb or block external light incident on the front. However, the remaining touch electrodes (SENs) where the position code patterns (CPs) are not formed can reflect the external light incident on the front back to the front. Accordingly, to reduce the difference in external light reflectance between the position code pattern formation areas (CPDs) and the surrounding areas where the position code patterns (CPs) are not formed, the pattern width or area of ​​the touch electrodes (SENs) that overlap or correspond to the position code patterns (CPs) can be formed wider than the width or area of ​​the position code patterns (CPs). Additionally, the area of ​​the touch electrodes (SENs) formed in the position code pattern formation areas (CPDs) can be formed as a larger area than the area of ​​the position code pattern (CP) formed overlapping or corresponding to the front.

[0116] Specifically, the width of the touch electrodes (SEN) formed in the position code pattern forming regions (CPDs) may be formed with a width greater than the width of at least one direction of the position code pattern (CP). For example, the width or width of at least one direction among the X-axis and Y-axis directions and the first to fourth directions (DR1 to DR4) of the touch electrodes (SEN) may be formed with a width greater than the width or width of the X-axis and Y-axis directions and the first to fourth directions (DR1 to DR4) of the position code pattern (CP). In this case, the X-axis and Y-axis directions are vertical and horizontal directions, and the first to fourth directions (DR1 to DR4) may be diagonal directions with respect to the X-axis and Y-axis directions.

[0117] The planar pattern shape of the touch electrodes (SEN) formed in each of the position code pattern forming regions (CPDs) can be formed as a shape corresponding to the planar code shape of each of the position code patterns (CP). That is, the planar pattern shape of the touch electrodes (SEN) formed in each of the position code pattern forming regions (CPDs) can be formed as at least one polygonal pattern shape among a rectangle, a square, a circle, a semicircle, a sector, and a rhombus, corresponding identically to the planar code shape of each of the position code patterns (CP). Here, the width of the touch electrodes (SEN) formed in the position code pattern forming regions (CPDs) is formed to be wider than the width of at least one direction of the position code pattern (CP).

[0118] FIG. 9 is an enlarged view specifically showing the pattern shape of the touch electrodes and position code patterns in the B1 region shown in FIG. 6.

[0119] Referring to FIG. 9, in addition to driving electrodes (TE) and sensing electrodes (RE), dummy electrodes (DE) may be formed in the preset position code pattern forming regions (CPD), and position code patterns (CP) may also be formed at preset intervals of about 300 μm on a portion of the front of the dummy electrodes (DE).

[0120] The width, size, and length of at least one direction of the position code patterns (CP) can be set and formed to correspond to the size, detection area, array structure, etc. of each light receiving part (21(b)) or each optical image sensor included in the code detection part (21) of the position input device (20).

[0121] The width of the dummy electrodes (DE) formed in the position code pattern forming regions (CPD) can also be formed to be wider than the width of the position code patterns (CP), just like the driving electrodes (TE) and sensing electrodes (RE). Accordingly, external light can be reflected to at least one side of the position code pattern (CP) or to the front of the dummy electrodes (DE) protruding in the upward and downward directions.

[0122] The planar pattern shape of the dummy electrodes (DE), which corresponds to the planar code shape of the position code patterns (CP) and is formed with a wider width than the position code patterns (CP), may be formed as at least one polygonal pattern shape among a rectangle, a square, a circle, a semicircle, a sector, and a rhombus, or may be formed as a pattern shape in which multiple polygonal pattern shapes are combined. For example, the planar pattern shape of the dummy electrodes (DE), which corresponds to the planar code shape of the position code patterns (CP) and is formed with a wider width, may be formed as a rhombus pattern shape surrounding at least one light-emitting region (EA1). At this time, the width or area of ​​at least one direction among the X-axis and Y-axis directions and the first to fourth directions (DR1 to DR4) of the dummy electrodes (DE) formed corresponding to each of the position code patterns (CP) may be formed with a wider width than the width or area of ​​the X-axis and Y-axis directions and the first to fourth directions (DR1 to DR4) of the position code patterns (CP). FIG. 9 illustrates an example in which the width of the dummy electrodes (DE) in the first to fourth directions (DR1 to DR4) is formed to be wider than the width of the position code pattern (CP) in the first to fourth directions (DR1 to DR4).

[0123] In this way, the planar pattern shape of the dummy electrodes (DE), formed with a wider width corresponding to the planar code shape of the position code patterns (CP), can be formed as a closed loop pattern shape such as a rectangle, square, rhombus, pentagon, or hexagon surrounding at least one light-emitting region (EA1).

[0124] FIG. 10 is a cross-sectional view specifically illustrating the I-I' cross-sectional structure of FIG. 9 according to one embodiment. FIG. 11 is a cross-sectional view showing the II' cross-sectional structure of FIG. 10 in a simplified block format.

[0125] Referring to FIGS. 10 and 11, a barrier film (BR) may be disposed on a substrate (SUB). The substrate (SUB) may be made of an insulating material such as a 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.

[0126] The barrier film (BR) is a film for protecting 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 a substrate (SUB) that is vulnerable to moisture permeability. The barrier film (BR) may be composed of a plurality of inorganic films that are alternately stacked. For example, the barrier film (BR) may be formed as a multilayer film in which one or more inorganic films selected from a silicon nitride layer, a silicon oxynitride layer, a silicon oxide layer, a titanium oxide layer, and an aluminum oxide layer are alternately stacked.

[0127] 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).

[0128] The active layer (ACT1), source electrode (S1), and drain electrode (D1) of 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-crystal silicon, low-temperature polycrystalline silicon, amorphous silicon, or oxide semiconductor. The active layer (ACT1) that overlaps with 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 drain electrode (D1) are regions that do not overlap with the gate electrode (G1) in the third direction (Z-axis direction), and may have conductivity by doping silicon semiconductor or oxide semiconductor with ions or impurities.

[0129] A gate insulating film (130) may be disposed on the active layer (ACT1), source electrode (S1), and drain electrode (D1) of a thin-film transistor (ST1). The gate insulating film (130) may be formed of an inorganic film, for example, a silicon nitride layer, a silicon oxynitride layer, a silicon oxide layer, a titanium oxide layer, or an aluminum oxide layer.

[0130] A gate electrode (G1) of a thin-film transistor (ST1) may be disposed on the gate insulating film (130). The gate electrode (G1) may overlap with the active layer (ACT1) in a third direction (Z-axis direction). The gate electrode (G1) may be formed as a single layer or a multilayer made of any one of molybdenum (Mo), aluminum (Al), chromium (Cr), gold (Au), titanium (Ti), nickel (Ni), neodymium (Nd), and copper (Cu), or an alloy thereof.

[0131] A first interlayer insulating film (141) may be disposed on the gate electrode (G1) of a thin-film transistor (ST1). The first interlayer insulating film (141) may be formed of an inorganic film, for example, a silicon nitride layer, a silicon oxynitride 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.

[0132] A capacitor electrode (CAE) may be disposed on the first interlayer insulating film (141). The capacitor electrode (CAE) may overlap with 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 may 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) may be formed as a single layer or a multilayer made of any one of molybdenum (Mo), aluminum (Al), chromium (Cr), gold (Au), titanium (Ti), nickel (Ni), neodymium (Nd), and copper (Cu), or an alloy thereof.

[0133] A second interlayer insulating film (142) may be disposed on the capacitor electrode (CAE). The second interlayer insulating film (142) may be formed of an inorganic film, for example, a silicon nitride layer, a silicon oxynitride 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.

[0134] A first anode connection electrode (ANDE1) may be disposed on the second interlayer insulating film (142). The first anode connection electrode (ANDE1) may be connected to the drain electrode (D1) of a thin-film transistor (ST1) through a first connection contact hole (ANCT1) penetrating the gate insulating film (130), the first interlayer insulating film (141), and the second interlayer insulating film (142). The first anode connection electrode (ANDE1) may be formed as a single layer or a multilayer made of any one of molybdenum (Mo), aluminum (Al), chromium (Cr), gold (Au), titanium (Ti), nickel (Ni), neodymium (Nd), and copper (Cu), or an alloy thereof.

[0135] A first flattening film (160) for flattening the step difference caused by the thin-film transistor (ST1) may be disposed on the first anode connection electrode (ANDE1). The first flattening film (160) may be formed from an organic film such as an acrylic resin, an epoxy resin, a phenolic resin, a polyamide resin, or a polyimide resin.

[0136] A second anode connecting electrode (ANDE2) may be disposed on the first flattening film (160). The second anode connecting electrode (ANDE2) may be connected to the first anode connecting electrode (ANDE1) through a second connecting contact hole (ANCT2) that penetrates the first flattening film (160). The second anode connecting electrode (ANDE2) may be formed as a single layer or a multilayer made of any one of molybdenum (Mo), aluminum (Al), chromium (Cr), gold (Au), titanium (Ti), nickel (Ni), neodymium (Nd), and copper (Cu), or an alloy thereof.

[0137] A second planarization film (180) may be disposed on the second anode connection electrode (ANDE2). The second planarization film (180) may be formed from an organic film such as an acrylic resin, an epoxy resin, a phenolic resin, a polyamide resin, or a polyimide resin.

[0138] Light-emitting elements (LELs) and a bank (190) may be disposed on the second planarization film (180). Each of the light-emitting elements (LELs) includes a pixel electrode (171), a light-emitting layer (172), and a common electrode (173).

[0139] The pixel electrode (171) can be placed on the second planarization film (180). The pixel electrode (171) can be connected to the second anode connection electrode (ANDE2) through a third connection contact hole (ANCT3) that penetrates the second planarization film (180).

[0140] In a top emission structure that emits light in the direction of a common electrode (173) based on a light-emitting layer (172), the pixel electrode (171) can be formed of a highly reflective metallic material such as a stacked structure of aluminum and titanium (Ti / Al / Ti), a stacked structure of aluminum and ITO (Indium Tin Oxide) (ITO / Al / ITO), an APC alloy, and a stacked structure of APC alloy and ITO (ITO / APC / ITO). The APC alloy is an alloy of silver (Ag), palladium (Pd), and copper (Cu).

[0141] A bank (190) may be formed to partition a pixel electrode (171) on a second planarization film (180) to define first to third light-emitting regions (EA1 to EA3). A bank (190) may be positioned to cover the edges of the pixel electrode (171). A bank (190) may be formed from an organic film such as an acrylic resin, an epoxy resin, a phenolic resin, a polyamide resin, or a polyimide resin.

[0142] Each of the first to third light-emitting regions (EA1 to EA3) represents a region in which a pixel electrode (171), a light-emitting layer (172), and a common electrode (173) are sequentially stacked, and a hole from the pixel electrode (171) and an electron from the common electrode (173) combine with each other in the light-emitting layer (172) to produce light.

[0143] A light-emitting layer (172) may be disposed on the pixel electrode (171) and the bank (190). The light-emitting layer (172) may include an organic material and emit a predetermined color. For example, the light-emitting layer (172) includes a hole transporting layer, an organic material layer, and an electron transporting layer.

[0144] A 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 formed commonly in the first light-emitting region (EA1), the second light-emitting region (EA2), and the third light-emitting region (EA3). A capping layer may be formed on the common electrode (173).

[0145] In the upper light-emitting structure, the common electrode (173) can be formed from a transparent conductive material (TCO) such as ITO or IZO that can transmit light, or a semi-transmissive conductive material such as magnesium (Mg), silver (Ag), or an alloy of magnesium (Mg) and silver (Ag). When the common electrode (173) is formed from a semi-transmissive conductive material, the light emission efficiency can be increased by the micro cavity.

[0146] An encapsulation layer (TFEL) may be disposed on the common electrode (173). The encapsulation layer (TFEL) includes at least one inorganic film to prevent oxygen or moisture from penetrating the light-emitting element layer (EML). Additionally, the encapsulation layer (TFEL) includes at least one organic film to protect the light-emitting element layer (EML) from foreign substances such as dust. For example, the encapsulation layer (TFEL) includes a first encapsulation inorganic film (TFE1), an encapsulation organic film (TFE2), and a second encapsulation inorganic film (TFE3).

[0147] A first encapsulating inorganic film (TFE1) may be disposed on a common electrode (173), an encapsulating organic film (TFE2) may be disposed on the first encapsulating inorganic film (TFE1), and a second encapsulating inorganic film (TFE3) may be disposed on the encapsulating organic film (TFE2). The first encapsulating inorganic film (TFE1) and the second encapsulating inorganic film (TFE3) may be formed as a multilayer film in which one or more inorganic films selected from a silicon nitride layer, a silicon oxynitride layer, a silicon oxide layer, a titanium oxide layer, and an aluminum oxide layer are alternately stacked. The encapsulating organic film (TFE2) may be an organic film such as an acrylic resin, an epoxy resin, a phenolic resin, a polyamide resin, or a polyimide resin.

[0148] A touch sensing unit (TSU) may be disposed on the encapsulation layer (TFEL). The touch sensing unit (TSU) includes a first touch insulating film (TINS1), a connecting electrode (CE), a second touch insulating film (TINS2), a driving electrode (TE), a sensing electrode (RE), and a third touch insulating film (TINS3).

[0149] The first touch insulating film (TINS1) may be formed of an inorganic film, for example, a silicon nitride layer, a silicon oxynitride layer, a silicon oxide layer, a titanium oxide layer, or an aluminum oxide layer.

[0150] A connecting electrode (CE) may be disposed on the first touch insulating film (TINS1). The connecting electrode (CE) may be formed as a single layer or a multilayer made of any one of molybdenum (Mo), aluminum (Al), chromium (Cr), gold (Au), titanium (Ti), nickel (Ni), neodymium (Nd), and copper (Cu), or an alloy thereof.

[0151] A second touch insulating film (TINS2) is disposed on a first touch insulating film (TINS1) comprising connecting electrodes (CE). The second touch insulating film (TINS2) may be formed of an inorganic film, for example, a silicon nitride layer, a silicon oxynitride layer, a silicon oxide layer, a titanium oxide layer, or an aluminum oxide layer. Alternatively, the second touch insulating film (TINS2) may be formed of an organic film such as an acrylic resin, an epoxy resin, a phenolic resin, a polyamide resin, or a polyimide resin.

[0152] Driving electrodes (TE) and sensing electrodes (RE) may be disposed on the second touch insulating film (TINS2). In addition, not only the driving electrodes (TE) and sensing electrodes (RE), but also the dummy electrodes (DE) shown in FIG. 4, the first touch driving wires (TL1), the second touch driving wires (TL2), and the touch sensing wires (RL) may be disposed on the second touch insulating film (TINS2).

[0153] Referring to FIG. 11, the width (DEw1) of the driving electrodes (TE), sensing electrodes (RE), and dummy electrodes (DE) formed in the position code pattern forming regions (CPD) is formed with a wider width than the width (DEw2) of the driving electrodes (TE), sensing electrodes (RE), and dummy electrodes (DE) formed in other surrounding regions where the position code pattern (CP) is not formed.

[0154] The driving electrodes (TE), sensing electrodes (RE), and dummy electrodes (DE) are formed of conductive metal electrodes, and the conductive metal electrodes are formed of any one of molybdenum (Mo), aluminum (Al), chromium (Cr), 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 a net structure so as not to overlap with the light-emitting regions (EA1 to EA4). Each driving electrode (TE) and sensing electrode (RE) may partially overlap with the connecting electrode (CE) in the third direction (Z-axis direction). The driving electrode (TE) may be connected to the connecting electrode (CE) through a touch contact hole (TCNT1) penetrating the second touch insulating film (TINS2).

[0155] A light-blocking member is applied to the front surface of a second touch insulating film (TINS2) comprising driving electrodes (TE), sensing electrodes (RE), and dummy electrodes (DE). The applied light-blocking member is then patterned into a shape of the driving electrodes (TE), sensing electrodes (RE), and dummy electrodes (DE) and a preset planar code shape. Specifically, the light-blocking member can be formed into position code patterns (CP) in preset position code pattern formation areas (CPD) by performing an exposure and patterning process using a mask. In this way, position code patterns (CP) are formed by a patterning process in a portion of the front surface of the driving electrodes (TE), sensing electrodes (RE), and dummy electrodes (DE) corresponding to the position code pattern formation areas (CPD). At this time, the formation width (CPw) of the position code patterns (CP) can be formed with a narrower width than the formation width (DEw1) of the driving electrodes (TE), sensing electrodes (RE), and dummy electrodes (DE) formed in the position code pattern formation areas (CPD).

[0156] The formation width (CPw) of at least one direction of the position code patterns (CP) may be formed with the same width as the formation width (DEw2) of the driving electrodes (TE), sensing electrodes (RE), and dummy electrodes (DE) formed in other surrounding areas where the position code patterns (CP) are not formed. Alternatively, the formation width (CPw) of at least one direction of the position code patterns (CP) may be narrower than the formation width (DEw1) of the driving electrodes (TE), sensing electrodes (RE), and dummy electrodes (DE) formed in the position code pattern formation areas (CPD), and wider than the formation width (DEw2) of the driving electrodes (TE), sensing electrodes (RE), and dummy electrodes (DE) formed in surrounding areas where the position code patterns (CP) are not formed.

[0157] A light-shielding member patterned with position code patterns (CPs) may be formed from materials including infrared or ultraviolet absorbing materials. For example, the light-shielding member may be formed from a material including an inorganic or organic pigment. Here, the inorganic pigment may be a pigment containing at least one compound among carbon black, cyanin, polymethine, anthraquinone, and phthalocyanine-based compounds. On the other hand, the organic pigment may include at least one material among lactam black, perylene black, and aniline black, but is not limited thereto.

[0158] A third touch insulating film (TINS3) is formed on each driving electrode (TE) and sensing electrode (RE) including position code patterns (CP). The third touch insulating film (TINS3) can serve to flatten the step formed by the driving electrodes (TE), sensing electrodes (RE), and connecting electrodes (CE). To this end, the third touch insulating film (TINS3) may be formed of an inorganic film, namely a silicon nitride layer, a silicon oxynitride layer, a silicon oxide layer, a titanium oxide layer, or an aluminum oxide layer. Alternatively, the third touch insulating film (TINS3) may be formed of an organic film such as an acrylic resin, an epoxy resin, a phenolic resin, a polyamide resin, or a polyimide resin.

[0159] A plurality of color filter layers (CFL1, CFL3, CFL4) may be formed on the touch sensing unit (TSU). For example, a plurality of color filter layers (CFL1, CFL3, CFL4) may be formed in a planar shape on the third touch insulating film (TINS3).

[0160] FIG. 12 is a cross-sectional view showing the I-I' cross-sectional structure of FIG. 9 in a simplified block form according to another embodiment.

[0161] Referring to FIG. 12, a plurality of color filter layers (CFL1, CFL3, CFL4) may be formed on the touch sensing unit (TSU), but the plurality of color filter layers (CFL1, CFL3, CFL4) may be formed on the second touch insulating film (TINS2) by covering the position code patterns (CP).

[0162] In other words, a plurality of color filter layers (CFL1, CFL3, CFL4) may each be formed on the second touch insulating film (TINS2) by covering the first to fourth light-emitting regions (EA1, EA2, EA3, EA4), position code patterns (CP), driving electrodes (TE), sensing electrodes (RE), and dummy electrodes (DE). Here, the first color filter (CFL1) may be placed on the first light-emitting region (EA1) that emits a first color light, the second color filter (not shown) may be placed on the second light-emitting region (EA2) that emits a second color light, and the third color filter (CFL3) may be placed on the third light-emitting region (EA3) that emits a third color light. Additionally, the second color filter (not shown) may also be placed on the fourth light-emitting region that emits a second color light.

[0163] On the other hand, a separate polarizing film may be formed on the first to fourth light-emitting regions (EA1, EA2, EA3, EA4), including the position code patterns (CP), instead of a plurality of color filter layers (CFL1, CFL3, CFL4).

[0164] FIG. 13 is an enlarged view specifically showing a B1 area in which touch electrodes and position code patterns are arranged according to a second embodiment.

[0165] Referring to FIG. 13, position code patterns (CP) are formed at preset intervals on the front of dummy electrodes (DE), including driving electrodes (TE) and sensing electrodes (RE).

[0166] The width, size, and length of at least one direction of the position code patterns (CP) can be set and formed to correspond to the size, detection area, arrangement, etc. of each light receiving unit (21(b)) or each optical image sensor included in the code detection unit (21) of the position input device (20).

[0167] The planar code shape of the position code patterns (CP) formed in the position code pattern forming regions (CPD) can be formed as at least one polygonal closed-loop pattern shape, such as a rectangular pattern, square pattern, rhombus pattern, pentagonal pattern, or hexagonal pattern, surrounding at least one light-emitting region (EA1, EA2, EA3, EA4). Accordingly, the planar pattern shapes of the driving electrodes (TE), sensing electrodes (RE), and dummy electrodes (DE) can also be formed as at least one polygonal closed-loop pattern shape, such as a rectangular pattern, square pattern, rhombus pattern, pentagonal pattern, or hexagonal pattern, surrounding at least one light-emitting region (EA1, EA2, EA3, EA4) so ​​that the position code patterns (CP) overlap.

[0168] The width (DEw) of the driving electrodes (TE), sensing electrodes (RE), and dummy electrodes (DE), which are formed corresponding to the planar code shapes of the position code patterns (CP), is formed to be wider than the width (CPw) of the position code patterns (CP). Accordingly, external light can be reflected in the front direction of the driving electrodes (TE), sensing electrodes (RE), and dummy electrodes (DE) that protrude in at least one lateral or vertical direction of the position code pattern (CP).

[0169] The driving electrodes (TE), sensing electrodes (RE), and dummy electrodes (DE), each formed corresponding to the planar code shapes of the position code patterns (CP), may include a protrusion protruding in at least one polygonal shape among a triangular shape, a square shape, and a trapezoidal shape in at least one lateral or vertical direction of the position code pattern (CP). Here, the width (DEw) of the electrodes (TE, RE, DE), including the width of the polygonal protrusion, may be formed to be wider than the width (CPw) of the position code patterns (CP).

[0170] The area, width in at least one direction, length in at least one direction, and width in at least one direction of each of the position code patterns (CP) may be formed differently from adjacent other position code patterns (CP). Accordingly, the area, width in at least one direction, length in at least one direction, and width in at least one direction of each driving electrode (TE), sensing electrode (RE), and dummy electrode (DE) corresponding to the planar code shape of the position code patterns (CP) may be formed differently from adjacent other driving electrodes (TE), sensing electrodes (RE), and dummy electrode (DE).

[0171] Additionally, the width or area in at least one direction among the X-axis and Y-axis directions and the first to fourth directions (DR1 to DR4) of the driving electrodes (TE), sensing electrodes (RE), and dummy electrodes (DE) corresponding to the planar code shapes of the position code patterns (CP) may be formed with a wider width or area than the width or area in the X-axis and Y-axis directions and the first to fourth directions (DR1 to DR4) of the position code patterns (CP). FIG. 13 illustrates an example in which the width in the first to fourth directions (DR1 to DR4) of the driving electrodes (TE), sensing electrodes (RE), and dummy electrodes (DE) corresponding to the planar code shapes of the position code patterns (CP) is formed with a wider width than the width in the first to fourth directions (DR1 to DR4) of the position code patterns (CP).

[0172] As described above, the widths of the driving electrodes (TE), sensing electrodes (RE), and dummy electrodes (DE) corresponding to the planar code shapes of the position code patterns (CP) are formed to be wider than the width of the position code patterns (CP) by a preset width or more, so that external light from the front can be reflected, just like in the surrounding areas where the position code patterns (CP) are not formed. Accordingly, the visibility of the position code patterns (CP) to the user's eyes can be reduced.

[0173] FIG. 14 is an enlarged view specifically showing a B1 area in which touch electrodes and position code patterns are arranged according to a third embodiment.

[0174] Referring to FIG. 14, the planar code shape of the position code patterns (CP) can be formed as a planar mesh pattern shape by surrounding the outer edges and between the plurality of light-emitting regions (EA1, EA2, EA3, EA4). Accordingly, the planar pattern shapes of the driving electrodes (TE), sensing electrodes (RE), and dummy electrodes (DE) corresponding to the planar code shape of the position code patterns (CP) can also be formed as a planar mesh pattern shape by surrounding the outer edges and between the plurality of light-emitting regions (EA1, EA2, EA3, EA4) formed in the position code pattern forming regions (CPD).

[0175] As described above, the area, width in at least one direction, length in at least one direction, and width in at least one direction of each of the position code patterns (CP) can be formed differently from adjacent other position code patterns (CP). Accordingly, the area, width in at least one direction, length in at least one direction, and width in at least one direction of each driving electrode (TE), sensing electrode (RE), and dummy electrode (DE) corresponding to the planar code shape of the position code patterns (CP) can be formed differently from adjacent other driving electrodes (TE), sensing electrodes (RE), and dummy electrode (DE).

[0176] Additionally, the width or area in at least one direction among the X-axis and Y-axis directions and the first to fourth directions (DR1 to DR4) of the driving electrodes (TE), sensing electrodes (RE), and dummy electrodes (DE) corresponding to the planar code shapes of the position code patterns (CP) may be formed with a wider width or area than the width or area in the X-axis and Y-axis directions and the first to fourth directions (DR1 to DR4) of the position code patterns (CP). At this time, the driving electrodes (TE), sensing electrodes (RE), and dummy electrodes (DE) formed corresponding to the planar code shapes of the position code patterns (CP) may be formed to protrude in at least one polygonal shape among a triangular shape, a square shape, and a trapezoidal shape in at least one lateral direction or up and down direction of the position code pattern (CP).

[0177] FIG. 15 is an enlarged view specifically showing a B1 area in which touch electrodes and position code patterns are arranged according to the fourth embodiment.

[0178] Referring to FIG. 15, the planar code shape of the position code patterns (CP) can be formed as an open loop pattern shape that partially surrounds the outer edge of at least one light-emitting region (EA1, EA2, EA3, EA4). Accordingly, the planar pattern shapes of the driving electrodes (TE), sensing electrodes (RE), and dummy electrodes (DE) corresponding to the planar code shape of the position code patterns (CP) can also be formed as an open loop pattern shape that partially surrounds the outer edge of at least one light-emitting region (EA1, EA2, EA3, EA4) formed in the position code pattern forming regions (CPD).

[0179] The width or area in at least one direction among the X-axis and Y-axis directions and the first to fourth directions (DR1 to DR4) of the driving electrodes (TE), sensing electrodes (RE), and dummy electrodes (DE) corresponding to the planar code shapes of the position code patterns (CP) can be formed with a width or area greater than the width or area in the X-axis and Y-axis directions and the first to fourth directions (DR1 to DR4) of the position code patterns (CP). In this way, the width of the driving electrodes (TE), sensing electrodes (RE), and dummy electrodes (DE) corresponding to the planar code shapes of the position code patterns (CP) is formed with a width greater than or equal to a preset width than the width of the position code patterns (CP), so that external light from the front surface can be reflected, just like in the surrounding areas where the position code patterns (CP) are not formed. Accordingly, the visibility of the position code patterns (CP) to the user's eyes can be reduced.

[0180] On the other hand, the position input device (20) emits infrared light to the display unit (DU) and can continuously generate shape data of position code patterns (CP) according to the amount and shape of the infrared light reflected from the display unit (DU). Then, the position input device (20) can identify the structure and shape of the position code patterns (CP) and extract a data code corresponding to the structure and shape of the position code patterns (CP). In this way, the position input device (20) can combine the extracted data code and generate and transmit position coordinate data corresponding to the combined data code.

[0181] FIG. 16 is an enlarged view specifically showing a B1 area in which touch electrodes and position code patterns are arranged according to the fifth embodiment.

[0182] Referring to FIG. 16, the planar code shape of the position code patterns (CP) can be formed as at least one pattern shape among a straight or curved shape of a preset length, a cross pattern shape, or an irregular polygonal pattern shape with a predetermined curvature. Accordingly, the planar pattern shapes of the driving electrodes (TE), sensing electrodes (RE), and dummy electrodes (DE) corresponding to the planar code shape of the position code patterns (CP) can also be formed as at least one pattern shape among a straight or curved shape of a preset length, a cross pattern shape, or an irregular polygonal pattern shape with a predetermined curvature.

[0183] The area, width in at least one direction, length in at least one direction, and width in at least one direction of each position code pattern (CP) may be formed differently from other position code patterns (CP). Additionally, the widths of the driving electrodes (TE), sensing electrodes (RE), and dummy electrodes (DE) corresponding to the planar code shapes of the position code patterns (CP) are formed with a width greater than or equal to a preset width than the width of the position code patterns (CP).

[0184] The widths of the driving electrodes (TE), sensing electrodes (RE), and dummy electrodes (DE) corresponding to the planar code shapes of the position code patterns (CP) are formed to be wider than the width of the position code patterns (CP), so as to reflect external light from the front surface, similar to the surrounding areas where the position code patterns (CP) are not formed. Accordingly, the visibility of the position code patterns (CP) to the user's eyes can be reduced.

[0185] FIGS. 17 and FIGS. 18 are perspective views showing a display device according to another embodiment of the present invention.

[0186] FIGS. 17 and 18 illustrate that the display device (10) is a foldable display device that folds in a first direction (X-axis direction). The display device (10) can maintain both a folded state and an unfolded state. The display device (10) can be folded in an in-folding manner in which the front surface is positioned inward. When the display device (10) is bent or folded in an in-folding manner, the front surfaces of the display device (10) can be positioned to face each other. Alternatively, the display device (10) can be folded in an out-folding manner in which the front surface is positioned outward. When the display device (10) is bent or folded in an out-folding manner, the back surfaces of the display device (10) can be positioned to face each other.

[0187] The first non-folding area (NFA1) may be positioned on one side of the folding area (FDA), for example, on the right side. The second non-folding area (NFA2) may be positioned 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 positioned on the first non-folding area (NFA1) and the second non-folding area (NFA2), respectively.

[0188] The first folding line (FOL1) and the second folding line (FOL2) are extended in the second direction (Y-axis direction), and the display device (10) can be folded in the first direction (X-axis direction). As a result, 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).

[0189] 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) may 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 the diagonal direction of the display device (10) corresponding to the first direction (X-axis direction) and the second direction (Y-axis direction). In this case, the display device (10) may be folded into a triangular shape.

[0190] When the first folding line (FOL1) and the second folding line (FOL2) extend in the second direction (Y-axis direction), the length of the first direction (X-axis direction) of the folding region (FDA) may be shorter than the length of the second direction (Y-axis direction). Additionally, the length of the first direction (X-axis direction) of the first non-folding region (NFA1) may be longer than the length of the first direction (X-axis direction) of the folding region (FDA). The length of the first direction (X-axis direction) of the second non-folding region (NFA2) may be longer than the length of the first direction (X-axis direction) of the folding region (FDA).

[0191] The first display area (DA1) may be positioned on the front of the display device (10). The first display area (DA1) may overlap with 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 may be displayed in the front direction from the folding area (FDA), the first non-folding area (NFA1), and the second non-folding area (NFA2) of the display device (10).

[0192] The second display area (DA2) may be placed on the back surface of the display device (10). The second display area (DA2) may overlap with the second non-folding area (NFA2). Therefore, when the display device (10) is folded, an image may be displayed in the front direction from the second non-folding area (NFA2) of the display device (10).

[0193] FIGS. 17 and 18 illustrate that a through hole (TH) in which a camera (SDA) or the like is formed is placed in the first non-folding area (NFA1), but is not limited thereto. The through hole (TH) or the camera (SDA) may be placed in the second non-folding area (NFA2) or the folding area (FDA).

[0194] FIGS. 19 and FIGS. 20 are perspective views showing a display device according to another embodiment of the present invention.

[0195] FIGS. 19 and 20 illustrate that the display device (10) is a foldable display device that folds in a second direction (Y-axis direction). The display device (10) can maintain both a folded state and an unfolded state. The display device (10) can be folded in an in-folding manner in which the front surface is positioned inward. When the display device (10) is bent or folded in an in-folding manner, the front surfaces of the display device (10) can be positioned to face each other. Alternatively, the display device (10) can be folded in an out-folding manner in which the front surface is positioned outward. When the display device (10) is bent or folded in an out-folding manner, the back surfaces of the display device (10) can be positioned to face each other.

[0196] 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) is 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 positioned on one side of the folding area (FDA), for example, on the lower side. The second non-folding area (NFA2) may be positioned on the other side of the folding area (FDA), for example, on the upper side.

[0197] 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.

[0198] On the other hand, the folding region (FDA) may be a region bent with a predetermined curvature at the first folding line (FOL1) and the second folding line (FOL2). Therefore, the first folding line (FOL1) may be the boundary between the folding region (FDA) and the first non-folding region (NFA1), and the second folding line (FOL2) may be the boundary between the folding region (FDA) and the second non-folding region (NFA2).

[0199] As shown in FIGS. 19 and 20, the first folding line (FOL1) and the second folding line (FOL2) are extended in the first direction (X-axis direction), and the display device (10) can be folded in the second direction (Y-axis direction). As a result, the length of the display device (10) in the second direction (Y-axis direction) can be reduced by approximately half, so that the user can conveniently carry the display device (10).

[0200] 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) may 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 the diagonal direction of the display device (10) corresponding to the first direction (X-axis direction) and the second direction (Y-axis direction). In this case, the display device (10) may be folded into a triangular shape.

[0201] When the first folding line (FOL1) and the second folding line (FOL2) are extended in the first direction (X-axis direction) as shown in FIGS. 19 and 20, the length of the second direction (Y-axis direction) of the folding area (FDA) may be shorter than the length of the first direction (X-axis direction). Additionally, the length of the second direction (Y-axis direction) of the first non-folding area (NFA1) may be longer than the length of the second direction (Y-axis direction) of the folding area (FDA). The length of the second direction (Y-axis direction) of the second non-folding area (NFA2) may be longer than the length of the second direction (Y-axis direction) of the folding area (FDA).

[0202] The first display area (DA1) may be positioned on the front of the display device (10). The first display area (DA1) may overlap with 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 may be displayed in the front direction from the folding area (FDA), the first non-folding area (NFA1), and the second non-folding area (NFA2) of the display device (10).

[0203] The second display area (DA2) may be placed on the back surface of the display device (10). The second display area (DA2) may overlap with the second non-folding area (NFA2). Therefore, when the display device (10) is folded, an image may be displayed in the front direction from the second non-folding area (NFA2) of the display device (10).

[0204] In FIGS. 19 and 20, a through hole (TH) in which a camera (SDA), etc. is placed is exemplified as being placed in a second non-folding area (NFA2), but is not limited thereto. The through hole (TH) may be placed in a first non-folding area (NFA1) or a folding area (FDA).

[0205] 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 may be implemented in other specific forms without changing the technical concept or essential features thereof. Therefore, the embodiments described above should be understood as illustrative in all respects and not restrictive. Explanation of the symbols

[0206] 10: Display device 20: Position input device 21: Code detection unit 23: Code processor 100: Display panel 200: Display drive unit 300: Circuit board 400: Touch driver 500: Main Processor 600: Communications Unit CP: Location Code Pattern CPD: Location Code Pattern Formation Area

Claims

Claim 1 A display device comprising: a display portion including a plurality of light-emitting regions; a plurality of touch electrodes disposed between the plurality of light-emitting regions to detect touch; and a plurality of position code patterns formed by covering touch electrodes corresponding to preset position code pattern forming regions among the plurality of touch electrodes, wherein at least one direction width or width of the touch electrodes formed in the position code pattern forming regions is formed wider than at least one direction width or width of the position code pattern formed on the front surface, and the formation width of the first touch sensor region where the position code patterns are formed is greater than the formation width of the second touch sensor region formed in surrounding regions where the position code patterns are not formed, and the first touch sensor region and the second touch sensor region each include a plurality of driving electrodes, a plurality of sensing electrodes, and a plurality of dummy electrodes. Claim 2 A display device according to claim 1, wherein the plurality of light-emitting regions are arranged in a horizontal or vertical stripe structure or in a pentile matrix structure, and the plurality of touch electrodes include a plurality of driving electrodes, a plurality of sensing electrodes, and a plurality of dummy electrodes, and the plurality of driving electrodes, the plurality of sensing electrodes, and the plurality of dummy electrodes are formed in a mesh structure that surrounds both the spaces between and the periphery of the plurality of light-emitting regions. Claim 3 In claim 2, a display device wherein the area of ​​the touch electrodes formed in the position code pattern forming regions is larger than the area of ​​the position code patterns formed overlapping or correspondingly on the front surface. Claim 4 In claim 3, the width of the position code patterns formed in at least one direction in the position code pattern forming regions is formed to be the same width as the width of the plurality of touch electrodes formed in the surrounding regions where the position code patterns are not formed. Claim 5 A display device according to claim 3, wherein the width of the position code patterns formed in at least one direction in the position code pattern forming regions is narrower than the width of the touch electrodes formed in the position code pattern forming regions and wider than the width of the plurality of touch electrodes formed in the surrounding regions where the position code patterns are not formed. Claim 6 A display device according to claim 3, wherein the width or area of ​​at least one of the X-axis and Y-axis directions and the first to fourth directions of the touch electrodes formed in the position code pattern forming regions is formed with a wider width than the width or area of ​​the X-axis and Y-axis directions and the first to fourth directions of the position code pattern formed on the front surface, wherein the X-axis and Y-axis directions are vertical and horizontal directions, and the first to fourth directions are diagonal directions with respect to the X-axis and Y-axis directions. Claim 7 A display device according to claim 6, wherein the planar code pattern shape of the position code patterns is formed as at least one polygonal pattern shape among a rectangular pattern, a square pattern, a rhombus pattern, a pentagonal pattern, and a hexagonal pattern, and the touch electrodes formed in the position code pattern forming regions are formed as at least one polygonal pattern shape among the rectangular pattern, a square pattern, a rhombus pattern, a pentagonal pattern, and a hexagonal pattern so as to overlap the position code patterns. Claim 8 A display device according to claim 6, wherein the planar code pattern shape of the position code patterns is formed as at least one polygonal closed loop pattern shape among a rectangular pattern, a square pattern, a rhombus pattern, a pentagonal pattern, and a hexagonal pattern surrounding at least one of the plurality of light-emitting regions, and the touch electrodes formed in the position code pattern forming regions are formed as at least one polygonal closed loop pattern shape among a rectangular pattern, a square pattern, a rhombus pattern, a pentagonal pattern, and a hexagonal pattern surrounding the one light-emitting region so as to overlap the position code patterns. Claim 9 In claim 6, the touch electrodes formed in the position code pattern forming regions include protrusions that protrude in at least one lateral or vertical direction of the position code patterns, the protrusions are formed in at least one polygonal shape among a triangular shape, a square shape, and a trapezoidal shape, and the width of the touch electrodes, including the width of the protrusions, is formed to be wider than the width of the position code patterns. Claim 10 A display device according to claim 6, wherein the planar code pattern shape of the position code patterns is formed as a planar mesh pattern shape surrounding the outer edge and between the plurality of light-emitting regions formed in the position code pattern forming regions, and the touch electrodes formed in the position code pattern forming regions are formed as a planar mesh pattern shape surrounding the outer edge and between the plurality of light-emitting regions so that the position code patterns overlap. Claim 11 A display device according to claim 6, wherein the planar code pattern shape of the position code patterns is formed as an open loop pattern shape that partially surrounds the outer edge of at least one light-emitting area formed in the position code pattern forming regions, and the touch electrodes formed in the position code pattern forming regions are formed as an open loop pattern shape that partially surrounds the outer edge of the at least one light-emitting area so as to overlap the position code patterns. Claim 12 A display device according to claim 6, wherein the planar code pattern shape of the position code patterns is formed as at least one pattern shape among a straight line and curve shape of a predetermined length between a plurality of light-emitting regions formed in the position code pattern forming regions, a cross pattern shape, and an irregular polygonal pattern shape with curvature, and the touch electrodes formed in the position code pattern forming regions are formed as at least one pattern shape among a straight line and curve shape of a predetermined length between the plurality of light-emitting regions, a cross pattern shape, and an irregular polygonal pattern shape with curvature so as to overlap the position code patterns. Claim 13 A display device according to claim 6, wherein the area, width in at least one direction, length in at least one direction, and width in at least one direction of each of the position code patterns are formed differently from adjacent other position code patterns, and the area, width in at least one direction, length in at least one direction, and width in at least one direction of each of the touch electrodes formed in the position code pattern forming regions are formed differently from the touch electrodes formed in adjacent other position code pattern forming regions. Claim 14 A position input system comprising: a display device for displaying images; and a position input device for inputting position coordinate data to the display device, wherein the display device comprises: a display portion including a plurality of light-emitting regions; a plurality of touch electrodes disposed between the plurality of light-emitting regions to detect touch; and a plurality of position code patterns formed by covering touch electrodes corresponding to preset position code pattern forming regions among the plurality of touch electrodes, wherein at least one direction width or width of the touch electrodes formed in the position code pattern forming regions is formed wider than at least one direction width or width of the position code pattern formed on the front surface, and the formation width of the first touch sensor region where the position code patterns are formed is greater than the formation width of the second touch sensor region formed in surrounding regions where the position code patterns are not formed, and the first touch sensor region and the second touch sensor region include a plurality of driving electrodes, a plurality of sensing electrodes, and a plurality of dummy electrodes. Claim 15 In claim 14, the position input device comprises: a code detection unit that detects the position code pattern; a code processor that receives shape data for the position code pattern, extracts a data code corresponding to the shape of the position code pattern, and generates the position coordinate data corresponding to the data code; and a communication module that transmits the position coordinate data to the display device. Claim 16 In claim 14, the plurality of light-emitting regions are arranged in a horizontal or vertical stripe structure or in a pentile matrix structure, and the plurality of touch electrodes include a plurality of driving electrodes, a plurality of sensing electrodes, and a plurality of dummy electrodes, and the plurality of driving electrodes, the plurality of sensing electrodes, and the plurality of dummy electrodes are formed in a mesh structure that surrounds both the spaces between and the periphery of the plurality of light-emitting regions, in a position input system. Claim 17 In claim 16, a position input system in which the area of ​​the touch electrodes formed in the position code pattern forming regions is formed to be larger than the area of ​​the position code patterns formed overlapping or correspondingly on the front surface. Claim 18 In claim 17, the position input system wherein the width of the position code patterns formed in at least one direction in the position code pattern forming regions is formed to be the same width as the width of the plurality of touch electrodes formed in the surrounding regions where the position code patterns are not formed. Claim 19 A position input system according to claim 17, wherein the width of the formation of at least one direction of the position code patterns formed in the position code pattern forming regions is narrower than the width of the formation of the touch electrodes formed in the position code pattern forming regions and wider than the width of the formation of the plurality of touch electrodes formed in the surrounding regions where the position code patterns are not formed. Claim 20 A position input system according to claim 17, wherein the width or width of at least one of the X-axis and Y-axis directions and the first to fourth directions of the touch electrodes formed in the position code pattern forming regions is formed with a wider width than the width or width of the X-axis and Y-axis directions and the first to fourth directions of the position code pattern formed on the front surface, wherein the X-axis and Y-axis directions are vertical and horizontal directions, and the first to fourth directions are diagonal directions with respect to the X-axis and Y-axis directions.

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