Display device

Abstract

The utility model relates to a display device. A display panel of the display device includes emission areas and non-emission areas between adjacent ones of the emission areas. The sensing electrode is disposed on the non-emission area of the display panel. The light blocking member is disposed on a portion of the sensing electrode. The light blocking member absorbs light of a specific wavelength, and another portion of the sensing electrode that does not overlap the light blocking member reflects the light of the specific wavelength. When viewed on a plane, the light blocking member includes a first portion and a second portion having different line widths in a first direction.

Description

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This application claims priority to and the benefit of Korean Patent Application No. 10-2023-0055704 filed in the Korean Intellectual Property Office (KIPO) on April 27, 2023, which is incorporated herein by reference for the purpose of being fully set forth herein. Technical Field

[0003] Embodiments of the present invention relate to a display device and a touch input system including the display device. Background Art

[0004] Display devices are included in many types of electronic devices. Examples include smart phones, digital cameras, notebook computers, navigation devices, and smart TVs. These display devices may be flat panel devices such as liquid crystal display devices, field emission display devices, organic light emitting display devices, etc. In some flat panel display devices, each pixel may include a light emitting element capable of self-luminescence. In this case, an image may be displayed in a display panel without using a backlight unit.

[0005] In many of the above-mentioned display devices, input is performed using a part of the user's body (eg, a finger) or by using an input pen. When input is performed using the input pen, the display device can sense the input more accurately than input performed using a part of the user's body. Utility Model Content

[0006] One or more embodiments provide a display device capable of executing a function based on corresponding precise input coordinates. This can be achieved by generating input coordinate data of the input device without having to perform complex calculations and corrections when using the input device to determine the input to the display device. The present invention also provides a touch input system including the display device.

[0007] The technical problems to be solved by the present invention are not limited to the above-mentioned technical problems, and those skilled in the art will clearly understand other technical problems not mentioned from the following description.

[0008] In order to solve the above technical problems, a display device according to an embodiment of the present invention may include: a display panel including an emission area that emits light and a non-emission area between adjacent emission areas in the emission area; a sensing electrode disposed in the non-emission area of ​​the display panel; and a light blocking member disposed on a portion of the sensing electrode. The light blocking member may absorb light of a specific wavelength, and another portion of the sensing electrode that does not overlap with the light blocking member may reflect light of a specific wavelength. When viewed on a plane, the light blocking member may include a first portion and a second portion having different line widths in a first direction.

[0009] The light blocking member may absorb infrared rays and the sensing electrode may reflect infrared rays.

[0010] When viewed on a plane, the light blocking member may have a mesh structure that does not overlap with the emission area of ​​the display panel and surrounds at least one of the emission areas.

[0011] The light blocking member may be a coded pattern having positioning information determined by the arrangement of the light blocking member.

[0012] The coding pattern may include a first coding pattern and a second coding pattern formed to overlap each other, and when viewed on a plane, a size of the first coding pattern may be smaller than a size of the second coding pattern, and a line width of the first coding pattern may be larger than a line width of the second coding pattern.

[0013] When viewed on a plane, the second coding pattern may include a closed loop surrounding at least one of the emission areas, and the first coding pattern may not include a closed loop.

[0014] When viewed on a plane, the center of the area of ​​the first coding pattern and the center of the area of ​​the second coding pattern may be the same.

[0015] When viewed on a plane, a center of an area of ​​the first coding pattern and a center of an area of ​​the second coding pattern may be different from each other.

[0016] A plurality of light blocking members including the light blocking member may be arranged in rows and columns when viewed on a plane, and positioning information may be determined by arrangement positions of the plurality of light blocking members with respect to virtual lines corresponding to the rows and columns.

[0017] The first coding pattern and the second coding pattern may be positioned in the same direction based on a virtual line closest to the light blocking member among the virtual lines, and may be spaced apart by the same distance from the virtual line closest to the light blocking member.

[0018] The first coding pattern and the second coding pattern may be positioned in the same direction based on a virtual line closest to the light blocking member among the virtual lines, and may be spaced apart from the virtual line closest to the light blocking member by different distances.

[0019] When viewed on a plane, each of the first coding pattern and the second coding pattern may include a closed loop surrounding at least one of the emission regions.

[0020] The display panel may include: a substrate; a transistor disposed on the substrate; a light emitting element disposed on the transistor; and an encapsulation layer disposed on the substrate to cover the light emitting element. The sensing electrode may be disposed on the encapsulation layer.

[0021] The light blocking member may be disposed directly on the sensing electrode.

[0022] According to one or more embodiments, a touch input system according to an embodiment of the present invention may include: a display device that displays an image; and an input device that inputs a touch to the display device. The display device may include: a display panel including emission areas that each emit light and non-emission areas between adjacent emission areas in the emission area; a sensing electrode that is disposed in the non-emission area of ​​the display panel; and a light blocking member that is disposed on a portion of the sensing electrode and is spaced apart from each other. When viewed on a plane, each of the light blocking members may include a first portion and a second portion having different line widths in a first direction. The input device may capture images of some of the light blocking members and send positioning information determined by the arrangement of some of the light blocking members to the display device.

[0023] The light blocking member may absorb infrared rays, and another portion of the sensing electrode that does not overlap the light blocking member may reflect the infrared rays. The input device may capture images of some of the light blocking members using infrared rays.

[0024] The input device may include a camera which captures images of some of the light blocking members; a processor which obtains positioning information by analyzing the images of some of the light blocking members; and a communication module which transmits the positioning information to the display device.

[0025] The display device may further include: a communication unit receiving the positioning information from the communication module; and a main processor generating image data based on the positioning information. The display panel may display an image based on the image data.

[0026] Each of the light blocking members may include a first light blocking member having a first line width and a second light blocking member having a second line width smaller than the first line width, and a size of the first light blocking member may be smaller than a size of the second light blocking member when viewed on a plane.

[0027] When the input device is in contact with the display device, the input device can obtain positioning information based on only the first light blocking member. When the input device is spaced apart from the display device, the input device can obtain positioning information based on the first light blocking member and the second light blocking member.

[0028] According to one or more embodiments, a display device includes: a display panel, including an emission area and a non-emissive area; a coding pattern, arranged in at least one of the non-emissive areas, wherein the coding pattern includes a second code and a first code overlapping with the second code, the first code corresponds to a first light blocking area, and the second code corresponds to a second light blocking area, the second light blocking area has a different size from the first light blocking area, and the position of the center of the first light blocking area relative to at least one reference line indicating a position value and the position of the center of the second light blocking area relative to at least one reference line indicating a position value are the same or different.

[0029] The first encoding may have a first center, the second encoding may have a second center, and the first center may coincide with the second center. The first encoding may have a first center, the second encoding may have a second center, and the first center and the second center area may have different positioning. The first light blocking area may be between at least two adjacent emission areas of the pixel. The second light blocking area surrounds at least two adjacent emission areas of the pixel.

[0030] Details of other implementations are included in the detailed description and accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] The accompanying drawings illustrate exemplary embodiments of the inventive concept and, together with the description, serve to explain the principles of the inventive concept, wherein the accompanying drawings are included to provide a further understanding of the inventive concept and are incorporated in and constitute a part of this specification.

[0032] Figure 1 is a perspective view showing a display device according to an embodiment.

[0033] Figure 2 It is shown Figure 1 A cross-sectional view of an embodiment of a display device.

[0034] Figure 3 It is shown Figure 2 A plan view of an embodiment of a display unit of a display device.

[0035] Figure 4 is a plan view showing a touch sensing unit of a display device according to an embodiment.

[0036] Figure 5 According to the implementation method Figure 4 1 is an enlarged plan view of an area A1 of a touch sensing unit.

[0037] Figure 6 is an enlarged plan view of a portion of a display device according to an embodiment.

[0038] Figure 7It is shown along Figure 6 A cross-sectional view of an embodiment of a display device taken along line II'.

[0039] Figure 8 It shows that Figure 4 A plan view of an embodiment of a display device in which a region A1 is enlarged.

[0040] Fig. 9 is a plan view for explaining a light blocking member according to an embodiment.

[0041] Fig.10 It is shown along Figure 8 A cross-sectional view of an embodiment of a display device taken along line II-II'.

[0042] Fig.11 It is used to explain the embodiment according to Figure 8 Figure 1 shows a coding pattern of .

[0043] Fig.12 is a diagram showing contrast of a coding pattern according to a hovering distance according to an embodiment.

[0044] Fig.13 is a plan view showing a coding pattern according to an embodiment.

[0045] Fig.14 and Fig.15 is a plan view for explaining position coding according to arrangement of a light blocking member according to an embodiment.

[0046] Fig.16 It shows that Figure 4 FIG. 1 is a plan view of another embodiment of a display device in which an area A1 is enlarged.

[0047] Fig.17 is a plan view for explaining position coding according to arrangement of a light blocking member according to an embodiment.

[0048] Fig.18 is a perspective view showing a touch input system according to an embodiment.

[0049] Fig.19 is a diagram showing a method according to an embodiment of the present invention. Fig.18 Block diagram of a display device and an input device in a touch input system. DETAILED DESCRIPTION

[0050] Because the present invention allows various changes and many embodiments, specific embodiments will be shown in the drawings and described in detail in the written description. However, this is not intended to limit the present invention to a specific practical mode, and it should be understood that all changes, equivalents and substitutions that do not depart from the technical scope of the present invention are included in the present invention.

[0051] It will be understood that although the terms "first", "second", etc. may be used herein to describe various elements, these elements should not be limited by these terms. These terms are only used to distinguish one element from another element. For example, without departing from the scope of the present invention, the first element discussed below may be referred to as the second element. Similarly, the second element may also be referred to as the first element. In the present disclosure, unless the context clearly indicates otherwise, singular expressions are intended to also include plural expressions.

[0052] It will be further understood that the terms "comprises", "includes", "having" and the like used in the present disclosure specify the presence of stated features, wholes, steps, operations, elements, parts or combinations thereof, but do not exclude the presence or addition of one or more other features, wholes, steps, operations, elements, parts or combinations thereof. In addition, when a first part such as a layer, a film, a zone, a plate, etc. is "on" a second part, the first part may not only be "directly on" the second part, but also a third part may be between the first part and the second part. In addition, in the present disclosure, when a first part such as a layer, a film, a zone, a plate, etc. is formed on a second part, the direction in which the first part is formed is not limited to the upper direction of the second part, but may include the lateral direction or the lower direction of the second part. Conversely, when a first part such as a layer, a film, a zone, a plate, etc. is "under" a second part, the first part may not only be "directly under" the second part, but also a third part may be between the first part and the second part.

[0053] With reference to the embodiments described in detail below in conjunction with the accompanying drawings, the advantages and features of the present invention and methods for achieving them will become apparent. However, the present invention is not limited to the embodiments disclosed below and can be implemented in various different forms. In the following description, when the first part is connected to the second part, this includes not only the case where the first part is directly connected to the second part, but also the case where the third part is inserted between the first part and the second part and the first part and the second part are electrically connected to each other. In an embodiment of the present invention, the "connection" between two components may be meant to include both electrical connection and physical connection.

[0054] Hereinafter, a display device according to an embodiment of the present invention will be described with reference to the accompanying drawings related to the embodiments of the present invention.

[0055] Figure 1 is a perspective view showing a display device 10 according to an embodiment.

[0056] refer to Figure 1, the display device 10 can be applied to portable electronic devices such as mobile phones, smart phones, tablet personal computers (tablet PCs), mobile communication terminals, electronic notebooks, electronic books, portable multimedia players (PMPs), navigation devices, and ultra-mobile PCs (UMPCs). For example, the display device 10 can be used as a display unit of other types of electronic devices including but not limited to televisions, laptop computers, monitors, electronic billboards, or Internet of Things (IoT) devices. As other examples, the display device 10 can be applied to wearable devices such as smart watches, watch phones, glasses-type displays, and head-mounted displays (HMDs).

[0057] The display device 10 may have 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 corner portion where the short side in the X-axis direction and the long side in the Y-axis direction intersect may be formed to be rounded to have a predetermined curvature or to be formed at a right angle. The planar shape of the display device 10 may not be limited to a rectangle. For example, the planar shape of the display device 10 may be formed to have a shape similar to a polygon, a circle, or an ellipse.

[0058] The display device 10 may include a display panel 100 , a display driver 200 , a circuit board 300 , and a touch driver 400 .

[0059] The display panel 100 may include a main area MA and a sub-area SBA. The main area MA may include a display area DA and a non-display area NDA. The display area DA includes pixels that emit light to display an image. The non-display area NDA is partially or completely arranged around the display area DA. The display area DA may emit light from a plurality of emission areas or a plurality of opening areas. For example, each pixel of the display panel 100 may include a pixel circuit including a switching element, a pixel defining layer defining an emission area or an opening area, and a self-luminous element.

[0060] For example, the self-luminous element may include at least one of an organic light-emitting diode (including an organic light-emitting layer), a quantum dot light-emitting diode (including a quantum dot light-emitting layer), an inorganic light-emitting diode (including an inorganic semiconductor), and a micro light-emitting diode (MicroLED), but the present invention is not limited thereto.

[0061] The non-display area NDA may be an area outside the display area DA. The non-display area NDA may be defined as an edge area of ​​the main area MA of the display panel 100. The non-display area NDA may include a gate driver that provides a gate signal to a gate line and a fan-out line that connects the display driver 200 and the display area DA.

[0062] The sub-region SBA may extend from one side of the main region MA. The sub-region SBA may include a flexible material that can be bent, folded, or curled. 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 unit connected to the display driver 200 and the circuit board 300. In one embodiment, the sub-region SBA may be omitted, and the display driver 200 and the pad unit may be disposed in the non-display area NDA.

[0063] The display driver 200 may output a signal and a voltage for driving the display panel 100. The display driver 200 may provide a data voltage to the data line. In one embodiment, the display driver 200 may provide a power supply voltage to the power supply line, and may provide a gate control signal to the gate driver. The display driver 200 may be formed by an integrated circuit (IC) and may be mounted on the display panel 100 by a chip on glass (COG) method, a chip on plastic (COP) method, or an ultrasonic bonding method. For example, the display driver 200 may be disposed in a sub-region SBA, and may overlap with the main region MA in a thickness direction (Z-axis direction) by bending the sub-region SBA. For another example, the display driver 200 may be mounted on a circuit board 300.

[0064] The circuit board 300 may be attached to the pad unit of the display panel 100 through an anisotropic conductive film (ACF). Leads of the circuit board 300 may be electrically connected to the pad unit of the display panel 100. The circuit board 300 may be a flexible printed circuit board, a printed circuit board, or a flexible film such as a chip on film.

[0065] The touch driver 400 may be mounted on the circuit board 300. The touch driver 400 may be connected to the touch sensing unit of the display panel 100. The touch driver 400 may provide a touch drive signal to a plurality of touch electrodes of the touch sensing unit, and sense the amount of change in capacitance between the plurality of touch electrodes. For example, the touch drive signal may be a pulse signal having a predetermined frequency. The touch driver 400 may sense whether there is an input based on the amount of capacitance change between the plurality of touch electrodes, and may then calculate the corresponding input coordinates. The touch driver 400 may be formed by an integrated circuit (IC).

[0066] Figure 2 It is shown Figure 1 A cross-sectional view of an embodiment of a display device.

[0067] refer to Figure 2, the display panel 100 may include a display unit DU, a touch sensing unit TSU, and a polarizing film POL. The display unit DU may include a substrate SUB, a transistor layer TFTL, a light emitting element layer EML, and an encapsulation layer TFEL. The substrate SUB may be a base substrate or a base member. The substrate SUB may be a flexible substrate that can be bent, folded, or curled. For example, the substrate SUB may include a polymer resin such as polyimide (PI), but the present invention is not limited thereto. In another example, the substrate SUB may include a glass material or a metal material.

[0068] The transistor layer TFTL (or thin film transistor layer) may be disposed on the substrate SUB. The transistor layer TFTL may include a plurality of transistors (or thin film transistors) constituting a pixel circuit of each pixel. The transistor layer TFTL may also include a gate line, a data line, a power line, a gate control line, a fan-out line connecting the display driver 200 and the data line, and a lead connecting the display driver 200 and the pad unit. Each of the transistors may include a semiconductor region, a source electrode, a drain electrode, and a gate electrode. For example, when a gate driver is formed on one side of the non-display area NDA of the display panel 100, the gate driver may include a transistor.

[0069] The transistor layer TFTL may be disposed in the display area DA, the non-display area NDA, and the sub-area SBA. In the transistor layer TFTL, transistors of each of the pixels, gate lines, data lines, and power lines may be disposed in the display area DA. In the transistor layer TFTL, gate control lines and fan-out lines may be disposed in the non-display area NDA. In the transistor layer TFTL, lead lines may be disposed in the sub-area SBA.

[0070] The light emitting element layer EML may be disposed on the transistor layer TFTL. The light emitting element layer EML may include a plurality of light emitting elements and a pixel defining layer. Each of the plurality of light emitting elements includes a first electrode, a light emitting layer, and a second electrode stacked in sequence and emits light. The pixel defining layer defines a corresponding pixel in the pixel. The plurality of light emitting elements of the light emitting element layer EML may be disposed in the display area DA.

[0071] For example, the light-emitting layer may be an organic light-emitting layer including an organic material. The light-emitting layer may include a hole transport layer, an organic light-emitting layer, and an electron transport layer. When the first electrode receives a predetermined voltage through the transistor of the 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 transport layer and the electron transport layer, respectively. The holes and electrons combine with each other in the organic light-emitting layer to cause emission of light. For example, the first electrode may be an anode electrode and the second electrode may be a cathode electrode, but the present invention is not limited thereto.

[0072] For another example, the plurality of light emitting elements may include a quantum dot light emitting diode (including a quantum dot light emitting layer), an inorganic light emitting diode (including an inorganic semiconductor), or a micro light emitting diode.

[0073] The encapsulation layer TFEL may cover the upper surface and the side surface of the light emitting element layer EML and may protect the light emitting element layer EML. The encapsulation layer TFEL may include at least one inorganic layer and at least one organic layer for encapsulating the light emitting element layer EML.

[0074] The touch sensing unit TSU (or input sensing unit) may be provided on the encapsulation layer TFEL. The touch sensing unit TSU may include a plurality of touch electrodes and a touch line. The plurality of touch electrodes sense the touch of the user in a capacitive manner. The touch line connects the plurality of touch electrodes to the touch driver 400. For example, the touch sensing unit TSU may sense the touch of the user in a mutual capacitance method or a self-capacitance method.

[0075] For another example, the touch sensing unit TSU may be provided on a separate substrate provided on the display unit DU. In this case, the substrate supporting the touch sensing unit TSU may be a base member encapsulating the display unit DU.

[0076] A plurality of touch electrodes of the touch sensing unit TSU may be disposed in a touch sensor area overlapping the display area DA. A touch line of the touch sensing unit TSU may be disposed in a touch peripheral area overlapping the non-display area NDA.

[0077] The polarizing film POL may be disposed on the touch sensing unit TSU. The polarizing film POL may be attached to the touch sensing unit TSU by an optically transparent adhesive film (OCA film) or an optically transparent resin (OCR). For example, the polarizing film POL may include a phase delay film such as a linear polarizer and a λ / 4 wave plate (quarter wave plate). The phase delay film and the linear polarizer may be sequentially stacked on the touch sensing unit TSU.

[0078] Figure 3 It is shown Figure 2 1 is a plan view of an embodiment of a display unit DU of a display device 10.

[0079] refer to Figure 3 , the display unit DU may include a display area DA and a non-display area NDA. The display area DA may be an area where an image is displayed. For example, the display area DA may be a central area of ​​the display panel 100. The display area DA may include a plurality of pixels SP, a plurality of gate lines GL, a plurality of data lines DL, and a plurality of power lines VL. Each of the plurality of pixels SP may be defined as a minimum unit for outputting light.

[0080] The plurality of gate lines GL may provide gate signals (received from the gate driver 210) to the plurality of pixels SP. The plurality of gate lines GL may extend in the X-axis direction and may be spaced apart from each other in the Y-axis direction crossing the X-axis direction.

[0081] The plurality of data lines DL may provide data voltages (received from the display driver 200) to the plurality of pixels SP. The plurality of data lines DL may extend in the Y-axis direction and may be spaced apart from each other in the X-axis direction.

[0082] The plurality of power lines VL may provide a power voltage (received from the display driver 200) to the plurality of pixels SP. Here, the power voltage may be at least one of a driving voltage, an initialization voltage, and a reference voltage. The 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, but the present invention is not limited thereto.

[0083] The non-display area NDA may partially or completely surround the display area DA. The non-display area NDA may include a gate driver 210, a fan-out line FOL, and a gate control line GCL. The gate driver 210 may generate a plurality of gate signals based on a gate control signal, and may sequentially provide the plurality of gate signals to a plurality of gate lines GL according to a set order.

[0084] The fan-out line FOL may extend from the display driver 200 to the display area DA at a corresponding angle. The fan-out line FOL may provide a data voltage received from the display driver 200 to the plurality of data lines DL.

[0085] The gate control line GCL may extend from the display driver 200 to the gate driver 210. The gate control line GCL may provide the gate driver 210 with a gate control signal received from the display driver 200.

[0086] The sub-area SBA may include a display driver 200, a display pad area DPA, and a first touch pad area TPA1 and a second touch pad area TPA2. The display driver 200 may output a signal and a voltage for driving the display panel 100 to the fan-out line FOL. The display driver 200 may provide a data voltage to the data line DL through a corresponding fan-out line FOL in the fan-out line FOL. The data voltage may be provided to a plurality of pixels SP, and the brightness of light emitted by the plurality of pixels SP may be determined. The display driver 200 may provide a gate control signal to the gate driver 210 through the gate control line GCL.

[0087] The display pad area DPA, the first touch pad area TPA1, and the second touch pad area TPA2 may be disposed at the edge of the sub-area SBA. The display pad area DPA, the first touch pad area TPA1, and the second touch pad area TPA2 may be electrically connected to the circuit board 300 (for example, reference 1 to FIG. 1 ) through a low resistance and high reliability material such as an anisotropic conductive film or SAP (self-assembled anisotropic conductive paste). Figure 2 ).

[0088] The display pad area DPA may include a plurality of display pad units DP. The plurality of display pad units DP may be formed by a circuit board 300 (eg, referring to Figure 2 ) is connected to a graphic system. A plurality of display pad units DP may be connected to the circuit board 300 to receive digital video data and provide the digital video data to the display driver 200.

[0089] Figure 4 is a plan view showing a touch sensing unit TSU of the display device 10 according to an embodiment.

[0090] refer to Figure 4 , the touch sensing unit TSU may include a touch sensor area TSA that senses a user's touch and a touch peripheral area TPA that is partially or completely 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.

[0091] The touch sensor area TSA may include a plurality of touch electrodes SEN (or sensing electrodes) and a plurality of dummy electrodes DME. The plurality of touch electrodes SEN may form mutual capacitance or self capacitance to sense the touch of an object or a person.

[0092] The plurality of touch electrodes SEN may include a plurality of drive electrodes TE and a plurality of sensing electrodes RE. The plurality of drive electrodes TE may be arranged in the X-axis direction and the Y-axis direction. The plurality of drive electrodes TE may be spaced apart from each other in the X-axis direction and the Y-axis direction. The drive electrodes TE adjacent to each other in the Y-axis direction may be electrically connected to each other through the bridge electrode CE.

[0093] A plurality of driving electrodes TE may be connected to the first touch pad unit TP1 through a driving line TL. The driving line TL may include a lower driving line TLa and an upper driving line TLb. For example, the driving electrode TE disposed below the touch sensor area TSA may be connected to the first touch pad unit TP1 through the lower driving line TLa. The driving electrode TE disposed above the touch sensor area TSA may be connected to the first touch pad unit TP1 through the upper driving line TLb. The lower driving line TLa may pass through the lower side of the touch peripheral area TPA and extend to the first touch pad unit TP1. The upper driving line TLb may extend to the first touch pad unit TP1 via the upper side, the left side, and the lower side of the touch peripheral area TPA. The first touch pad unit TP1 may be connected to the touch driver 400 through the circuit board 300.

[0094] The bridge electrode CE may be bent at least once. For example, the bridge electrode CE may have an angle bracket shape ("<" or ">"), but the planar shape of the bridge electrode CE is not limited thereto. The drive electrodes TE adjacent to each other in the Y-axis direction may be connected to each other through a plurality of bridge electrodes CE. Even if one of the bridge electrodes CE is disconnected, the drive electrodes TE may be stably connected to each other through the remaining bridge electrodes CE. The drive electrodes TE adjacent to each other may be connected to each other through two bridge electrodes CE, but the number of bridge electrodes CE is not limited thereto.

[0095] The bridge electrode CE may be arranged on a different layer from the plurality of drive electrodes TE and the plurality of sensing electrodes RE. The sensing electrodes RE adjacent to each other in the X-axis direction may be electrically connected to each other through a connection portion arranged on the same layer as the plurality of drive electrodes TE or the plurality of sensing electrodes RE. The drive electrodes TE adjacent to each other in the Y-axis direction may be electrically connected to each other through a bridge electrode CE arranged on a different layer from the plurality of drive electrodes TE or the plurality of sensing electrodes RE. Therefore, even if the bridge electrode CE overlaps with the plurality of sensing electrodes RE in the Z-axis direction, the plurality of drive electrodes TE and the plurality of sensing electrodes RE may be insulated from each other. Mutual capacitance may be formed between the drive electrode TE and the sensing electrode RE.

[0096] The plurality of sensing electrodes RE may extend in the X-axis direction and may 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. The sensing electrodes RE adjacent to each other in the X-axis direction may be electrically connected to each other through a connection portion.

[0097] A plurality of sensing electrodes RE may be connected to the second touch pad unit TP2 through a sensing line RL. For example, the sensing electrode RE disposed on the right side of the touch sensor area TSA may be connected to the second touch pad unit TP2 through a sensing line RL. The sensing line RL may extend to the second touch pad unit TP2 via the right side and the lower side of the touch peripheral area TPA. The second touch pad unit TP2 may be connected to the touch driver 400 through the circuit board 300.

[0098] Each of the plurality of dummy electrodes DME may be surrounded by the driving electrode TE or the sensing electrode RE. Each of the plurality of dummy electrodes DME may be spaced apart from and insulated from the driving electrode TE or the sensing electrode RE. Therefore, the dummy electrode DME may be electrically floated.

[0099] The display pad area DPA, the first touch pad area TPA1, and the second touch pad area TPA2 may be disposed at an 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 through a low resistance and high reliability material such as (but not limited to) an anisotropic conductive film or SAP.

[0100] The first touch pad area TPA1 may be disposed on one side of the display pad area DPA and may include a plurality of first touch pad units TP1. The plurality of first touch pad units TP1 may be electrically connected to a touch driver 400 disposed on the circuit board 300. The plurality of first touch pad units TP1 may provide touch drive signals to the plurality of drive electrodes TE through the plurality of drive lines TL.

[0101] The second touch pad area TPA2 may be disposed on the other side (or opposite side) of the display pad area DPA, and may include a plurality of second touch pad units TP2. The plurality of second touch pad units TP2 may be electrically connected to a touch driver 400 disposed on the circuit board 300. The touch driver 400 may receive a touch sensing signal through a plurality of sensing lines RL connected to the plurality of second touch pad units TP2, and may sense a change in mutual capacitance between the driving electrode TE and the sensing electrode RE.

[0102] In another example, the touch driver 400 may provide a touch drive signal to each of the plurality of drive electrodes TE and the plurality of sensing electrodes RE, and may receive a touch sensing signal from each of the plurality of drive electrodes TE and the plurality of sensing electrodes RE. The touch driver 400 may sense a change in the amount of charge in each of the plurality of drive electrodes TE and the plurality of sensing electrodes RE based on the touch sensing signal.

[0103] Figure 5 According to the implementation method Figure 4 FIG. 1 is an enlarged plan view of an area A1 of the touch sensing unit TSU. Figure 6 is an enlarged plan view of a portion of the display device 10 according to the embodiment. Figure 5 compared to, Figure 6 Further emission areas EA1 to EA3 are shown.

[0104] refer to Figure 5 and Figure 6 , a plurality of driving electrodes TE and a plurality of sensing electrodes RE (and Figure 4 A plurality of dummy electrodes DME) may be disposed on the same layer and may be spaced apart from each other according to a predetermined pattern.

[0105] 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 to each other in the Y-axis direction may be electrically connected to each other through at least one of the bridge electrodes CE.

[0106] A plurality of sensing electrodes RE may extend in the X-axis direction and may be spaced apart from each other in the Y-axis direction. A plurality of sensing electrodes RE may be arranged in the X-axis direction and the Y-axis direction. Sensing electrodes RE adjacent to each other in the X-axis direction may be electrically connected to each other through a connecting portion RCE. For example, the connecting portion RCE of the sensing electrode RE may be disposed within the shortest distance between the driving electrodes TE adjacent to each other.

[0107] A plurality of bridge electrodes CE may be arranged on a different layer from the drive electrode TE and the sensing electrode RE. The bridge electrode CE may include a first portion CEa and a second portion CEb. For example, the first portion CEa of the bridge electrode CE may be connected to the drive electrode TE arranged on one side through a first contact hole CNT1, and may extend in a third direction DR3. The second portion CEb of the bridge electrode CE may be bent (or arranged at a certain angle) from the first portion CEa in an area overlapping with the sensing electrode RE, may extend in a second direction DR2, and may be connected to the drive electrode TE arranged on the other side through a first contact hole CNT1. Hereinafter, the first direction DR1 may be a direction between the X-axis direction and the Y-axis direction, the second direction DR2 may be a direction between the opposite direction of the Y-axis direction and the X-axis direction, the third direction DR3 may be a direction opposite to the first direction DR1, and the fourth direction DR4 may be a direction opposite to the second direction DR2. Therefore, each of the plurality of bridge electrodes CE may connect adjacent drive electrodes TE in the drive electrode TE that are adjacent to each other in the Y-axis direction.

[0108] For example, when viewed on a plane, the plurality of driving electrodes TE and the plurality of sensing electrodes RE (and Figure 4A plurality of dummy electrodes DME) may be formed in a grid structure. When viewed on a plane, a plurality of drive electrodes TE and a plurality of sensing electrodes RE may surround each of the first emission area EA1, the second emission area EA2, and the third emission area EA3 of the pixel group PG. Therefore, the plurality of drive electrodes TE and the plurality of sensing electrodes RE may not overlap with the first emission area EA1, the second emission area EA2, and the third emission area EA3. In addition, the plurality of bridge electrodes CE may not overlap with the first emission area EA1, the second emission area EA2, and the third emission area EA3. Therefore, the display device 10 can prevent the brightness of light emitted from the first emission area EA1, the second emission area EA2, and the third emission area EA3 from being reduced by the touch sensing unit TSU.

[0109] Each of the plurality of driving electrodes TE may include a first portion TEa extending in the first direction DR1 and a second portion TEb extending in the second direction DR2. Each of the plurality of sensing electrodes RE may include a first portion REa extending in the first direction DR1 and a second portion REb extending in the second direction DR2.

[0110] Each of the plurality of pixels may include first to third sub-pixels, and each of the first to third sub-pixels may include a first emission area EA1, a second emission area EA2, and a third emission area EA3. For example, the first emission area EA1 may emit light of a first color (e.g., red light), the second emission area EA2 may emit light of a second color (e.g., green light), and the third emission area EA3 may emit light of a third color (e.g., blue light), but in another embodiment, light of different color combinations may be emitted.

[0111] In one embodiment, one pixel group PG may include one first emission area EA1, two second emission areas EA2, and one third emission area EA3 to represent a white grayscale, but the configuration of the pixel group PG is not limited thereto. For example, the white grayscale may be represented by a combination of light emitted from one first emission area EA1, light emitted from two second emission areas EA2, and light emitted from one third emission area EA3. As will be discussed in more detail below, the light blocking member (or area) may be arranged in a predetermined manner relative to the emission areas EA1, EA2, and EA3.

[0112] Figure 7 is a diagram showing a method according to an embodiment of the present invention. Figure 6 A cross-sectional view of an embodiment of the display device 10 taken along line II' of FIG. Figure 7 , the display panel 100 may include a display unit DU, a touch sensing unit TSU, and a polarizing film POL.

[0113] The display unit DU may include a substrate SUB, a transistor layer TFTL, a light emitting element layer EML, and an encapsulation layer TFEL. The substrate SUB may be a base substrate or a base member.

[0114] The transistor layer TFTL may include a first buffer layer BF1, a light blocking layer BML, a second buffer layer BF2, a transistor TFT, a gate insulating layer GI, a first interlayer insulating layer ILD1, a capacitor electrode CPE, a second interlayer insulating layer ILD2, a first connection electrode CNE1, a first passivation layer PAS1, a second connection electrode CNE2, and a second passivation layer PAS2.

[0115] The first buffer layer BF1 may be disposed on the substrate SUB. The first buffer layer BF1 may include an inorganic layer capable of preventing air or moisture from penetrating. For example, the first buffer layer BF1 may include a plurality of inorganic layers alternately stacked.

[0116] The light blocking layer BML may be disposed on the first buffer layer BF1. For example, the light blocking layer BML may be formed of a single layer or multiple layers made of any one of molybdenum (Mo), aluminum (Al), chromium (Cr), gold (Au), titanium (Ti), nickel (Ni), neodymium (Nd), copper (Cu), and alloys thereof. In another example, the light blocking layer BML may be an organic layer including a black pigment.

[0117] The second buffer layer BF2 may cover the first buffer layer BF1 and the light blocking layer BML. The second buffer layer BF2 may include an inorganic layer capable of preventing air or moisture from penetrating. For example, the second buffer layer BF2 may include a plurality of inorganic layers alternately stacked.

[0118] A transistor TFT (eg, a thin film transistor) may be disposed on the second buffer layer BF2 and may be included in a pixel circuit provided for each of the plurality of pixels. For example, the transistor TFT may be a driving transistor or a switching transistor of the pixel circuit.

[0119] The transistor TFT may include a semiconductor region ACT, a source electrode SE, a drain electrode DE, and a gate electrode GE. The semiconductor region ACT, the source electrode SE, and the drain electrode DE may be disposed on the second buffer layer BF2. The semiconductor region ACT, the source electrode SE, and the drain electrode DE may overlap the light blocking layer BML in the thickness direction. The semiconductor region ACT may overlap the gate electrode GE in the thickness direction and may be insulated from the gate electrode GE by the gate insulating layer GI. The source electrode SE and the drain electrode DE may be disposed by changing the material of the semiconductor region ACT to have conductivity.

[0120] The gate electrode GE may be disposed on the gate insulating layer GI. The gate electrode GE may overlap the semiconductor region ACT with the gate insulating layer GI interposed therebetween.

[0121] The gate insulating layer GI may be disposed on the semiconductor region ACT, the source electrode SE, and the drain electrode DE. For example, the gate insulating layer GI may cover the semiconductor region ACT, the source electrode SE, the drain electrode DE, and the second buffer layer BF2, and insulate the semiconductor region ACT and the gate electrode GE from each other. The gate insulating layer GI may include a contact hole through which the first connection electrode CNE1 passes.

[0122] The first interlayer insulating layer ILD1 may cover the gate electrode GE and the gate insulating layer GI. The first interlayer insulating layer ILD1 may include a contact hole through which the first connection electrode CNE1 passes. The contact hole of the first interlayer insulating layer ILD1 may be connected to the contact hole of the gate insulating layer GI and the contact hole of the second interlayer insulating layer ILD2.

[0123] The capacitor electrode CPE may be disposed on the first interlayer insulating layer ILD1 , and may overlap the gate electrode GE in a thickness direction, and the capacitor electrode CPE and the gate electrode GE may form a capacitor.

[0124] The second interlayer insulating layer ILD2 may cover the capacitor electrode CPE and the first interlayer insulating layer ILD1. The second interlayer insulating layer ILD2 may include a contact hole through which the first connection electrode CNE1 passes. The contact hole of the second interlayer insulating layer ILD2 may be connected to the contact hole of the first interlayer insulating layer ILD1 and the contact hole of the gate insulating layer GI.

[0125] The first connection electrode CNE1 may be disposed on the second interlayer insulating layer ILD2. The first connection electrode CNE1 may connect the drain electrode DE of the transistor TFT to the second connection electrode CNE2. The first connection electrode CNE1 may be inserted into a contact hole disposed in the second interlayer insulating layer ILD2, the first interlayer insulating layer ILD1, and the gate insulating layer GI to contact the drain electrode DE of the transistor TFT.

[0126] The first passivation layer PAS1 may cover the first connection electrode CNE1 and the second interlayer insulating layer ILD2. The first passivation layer PAS1 may protect the transistor TFT. The first passivation layer PAS1 may include a contact hole through which the second connection electrode CNE2 passes.

[0127] The second connection electrode CNE2 may be disposed on the first passivation layer PAS1. The second connection electrode CNE2 may connect the first connection electrode CNE1 and the pixel electrode AND of the light emitting element LED. The second connection electrode CNE2 may be inserted into a contact hole disposed in the first passivation layer PAS1 to contact the first connection electrode CNE1.

[0128] The second passivation layer PAS2 may cover the second connection electrode CNE2 and the first passivation layer PAS1. The second passivation layer PAS2 may include a contact hole through which the pixel electrode AND of the light emitting element LED passes.

[0129] The light emitting element layer EML may be disposed on the transistor layer TFTL. The light emitting element layer EML may include a light emitting element LED and a pixel defining layer PDL. The light emitting element LED may include a pixel electrode AND, a light emitting layer EL, and a common electrode CAT.

[0130] The pixel electrode AND may be disposed on the second passivation layer PAS2. The pixel electrode AND may be disposed to overlap one of the first emission area EA1, the second emission area EA2, and the third emission area EA3 defined by the pixel defining layer PDL. The pixel electrode AND may be connected to the drain electrode DE of the transistor TFT through the first connection electrode CNE1 and the second connection electrode CNE2.

[0131] The light emitting layer EL may be disposed on the pixel electrode AND. For example, the light emitting layer EL may be an organic light emitting layer made of an organic material, but the present invention is not limited thereto. When the light emitting layer EL is formed of an organic light emitting layer, the transistor TFT may apply a predetermined voltage to the pixel electrode AND of the light emitting element LED. When the common electrode CAT of the light emitting element LED receives a common voltage or a cathode voltage, holes and electrons may move to the light emitting layer EL through the hole transport layer and the electron transport layer, respectively, and may recombine with each other in the light emitting layer EL to emit light.

[0132] The common electrode CAT may be disposed on the light emitting layer EL. For example, the common electrode CAT may be implemented as a common electrode for all pixels, rather than being provided separately for each pixel. The common electrode CAT may be disposed on the light emitting layer EL in the first emission area EA1, the second emission area EA2, and the third emission area EA3, and may be disposed on the pixel defining layer PDL in areas other than the first emission area EA1, the second emission area EA2, and the third emission area EA3.

[0133] The common electrode CAT may receive a common voltage, which may be, for example, a predetermined low potential voltage. When the pixel electrode AND receives a voltage corresponding to the data voltage and the common electrode CAT receives a low potential voltage, a potential difference may be formed between the pixel electrode AND and the common electrode CAT. This potential difference causes the light emitting layer EL to emit light.

[0134] The pixel defining layer PDL may define a first emission area EA1, a second emission area EA2, and a third emission area EA3. The pixel defining layer PDL may separate and insulate a pixel electrode AND of each of the plurality of light emitting elements LED.

[0135] The encapsulation layer TFEL may be disposed on the common electrode CAT to cover the plurality of light emitting elements LED. The encapsulation layer TFEL may include at least one inorganic layer and may prevent oxygen or moisture from penetrating into the light emitting element layer EML. The encapsulation layer TFEL may include at least one organic layer and may protect the light emitting element layer EML from foreign matter such as dust.

[0136] The touch sensing unit TSU may be disposed on the encapsulation layer TFEL. The touch sensing unit TSU may include a third buffer layer BF3, a bridge electrode CE, a first insulating layer SIL1, a driving electrode TE, a sensing electrode RE, and a second insulating layer SIL2. The third buffer layer BF3 may be disposed on the encapsulation layer TFEL. The third buffer layer BF3 may have insulating properties and optical properties. The third buffer layer BF3 may include at least one inorganic layer. In one embodiment, the third buffer layer BF3 may be omitted.

[0137] The bridge electrode CE may be disposed on the third buffer layer BF3. The bridge electrode CE may be disposed on a different layer from the driving electrode TE and the sensing electrode RE, and may connect the driving electrodes TE adjacent to each other in the Y-axis direction.

[0138] The first insulating layer SIL1 may at least partially cover the bridge electrode CE and the third buffer layer BF3. The first insulating layer SIL1 may have insulating properties and optical properties. For example, the first insulating layer SIL1 may be an inorganic layer including at least one of a silicon nitride layer, a silicon oxynitride layer, a silicon oxide layer, a titanium oxide layer, and an aluminum oxide layer.

[0139] The driving electrode TE and the sensing electrode RE may be disposed on the first insulating layer SIL1. Each of the driving electrode TE and the sensing electrode RE may not overlap with the first emission area EA1, the second emission area EA2, and the third emission area EA3. Each of the driving electrode TE and the sensing electrode RE may be formed of a single layer, which may be made of, for example, molybdenum (Mo), titanium (Ti), copper (Cu), aluminum (Al), or indium tin oxide (ITO). In one embodiment, each of the driving electrode TE and the sensing electrode RE may be formed of a stacked structure of aluminum and titanium (Ti / Al / Ti), a stacked structure of aluminum and ITO (ITO / Al / ITO), an APC alloy, or a stacked structure of an APC alloy and ITO (ITO / APC / ITO).

[0140] The second insulating layer SIL2 may cover the driving electrode TE, the sensing electrode RE, and the first insulating layer SIL1. The second insulating layer SIL2 may have insulating properties and optical properties. The second insulating layer SIL2 may be formed of, for example, the same material as that of the first insulating layer SIL1.

[0141] The polarizing film POL may be disposed on the touch sensing unit TSU.

[0142] Figure 8 It shows that Figure 4 A plan view of an embodiment of the display device 10 is shown with an area A1 enlarged. Fig. 9 1 is a plan view for explaining a light blocking member BK according to an embodiment. For ease of description, Fig. 9 Only the driving electrode TE (or the touch electrode SEN) and the light blocking member BK are shown. Fig.10 It is shown along Figure 8 A cross-sectional view of an embodiment of the display device 10 taken along line II-II'. For ease of description, Fig.10 The light emitting element layer EML and the transistor layer TFTL (and the substrate SUB) are briefly shown, but Fig.10 The display device 10 may include a reference Figure 8 The light emitting element layer EML and the transistor layer TFTL are described.

[0143] refer to Figures 5 to 10 , Figure 8 The region A1 may further include a light blocking member BK (or a coding pattern CP), and configurations similar to those described above will be briefly described or omitted. According to one or more embodiments, the light blocking member BK may be referred to as a light blocking region.

[0144] refer to Figures 8 to 10, the touch sensing unit TSU may further include a light blocking member BK covering some of the plurality of touch electrodes SEN. As will be described in more detail below, the light blocking member BK may be a position code (or code) having positioning information determined by the shape, arrangement, etc. of the light blocking member BK (refer to Fig.14 ). The position code may be arranged in a specific direction at the intersection of one or more virtual lines (eg, reference lines) arranged at a predetermined period (eg, reference lines). Fig.14 ). The value of the position encoding may be determined by the position of the light blocking member BK relative to one or more virtual lines. The virtual lines may correspond to rows and columns. For example, the rows and columns may be defined by pixels in the display panel 100 (e.g., overlapping with rows and columns of pixels), or may be predetermined reference lines corresponding to rows and columns of the light blocking member BK. Hereinafter, when describing positioning information or position encoding, the light blocking member BK will be referred to as a coding pattern CP.

[0145] The light blocking member BK may cover the upper surface and the side surface of the touch electrode SEN. The light blocking member BK may cover a portion of the driving electrode TE or a portion of the sensing electrode RE. Fig.10 As shown in , the light blocking member BK may be directly disposed on the driving electrode TE (or the touch electrode SEN) and may contact the driving electrode TE.

[0146] like Figure 8 As shown in , when viewed on a plane, the light blocking member BK may surround at least one of the first emission area EA1, the second emission area EA2, and the third emission area EA3. In this case, when viewed on a plane, the light blocking member BK may have a mesh structure.

[0147] When viewed in plan (or section), for example Fig.10 As shown in , the light blocking member BK may be disposed in the non-emission area BA between the first emission area EA1, the second emission area EA2, and the third emission area EA3, and may not overlap with the first emission area EA1, the second emission area EA2, and the third emission area EA3. Therefore, the display device 10 may prevent the brightness of the light emitted from the first emission area EA1, the second emission area EA2, and the third emission area EA3 from being reduced due to the light blocking member BK.

[0148] In an embodiment, the light blocking member BK may have a closed loop shape. In this case, the recognition sensitivity of the light blocking member BK (or the code pattern CP) may be improved compared to an open loop shape or a line shape.

[0149] The light blocking member BK may absorb light of a specific wavelength, and the touch electrode SEN may reflect light of a specific wavelength. For example, the light blocking member BK may include an infrared absorbing material or an ultraviolet absorbing material, and the plurality of touch electrodes SEN may include an infrared reflecting material or an ultraviolet reflecting material. For example, the light blocking member BK may include an inorganic black pigment or an organic black pigment. The inorganic black pigment may be carbon black, and the organic black pigment may include at least one of lactam black, perylene black, and aniline black, but the present invention is not limited thereto. Therefore, when the camera captures the touch sensing unit TSU using infrared or ultraviolet rays, the light blocking member BK covering a portion of the touch electrode SEN may be distinguished from another portion of the touch electrode SEN not covered by the light blocking member BK. Since the camera (or an input device including the camera) uses infrared or ultraviolet rays to identify the light blocking member BK (or the coding pattern CP), the image quality of the display device 10 may not be degraded when the light blocking member BK (or the coding pattern CP) is identified.

[0150] The coding pattern CP may be arranged throughout the entire area of ​​the touch sensor area TSA of the touch sensing unit TSU. Each coding pattern CP may have positioning information according to a specific standard. The coding pattern CP may be captured by a camera close to the front of the display device 10 and may be identified by the captured video or image. At least one coding pattern CP (or a combination of coding patterns CP) may correspond to the value of a predetermined data code. For example, a coding pattern CP arranged at a specific location may correspond to a data code specified at the corresponding location. For example, at least one coding pattern CP (or a combination of coding patterns CP) may have positioning information according to a specific standard and may correspond to a predetermined data code on a 1:1 basis.

[0151] The display device 10 may receive input from an input device (such as an input pen) by including a light blocking member BK (or a coding pattern CP having positioning information determined by the shape, arrangement, etc. of the light blocking member BK) covering some of the plurality of touch electrodes SEN. Here, the input pen may decode the input coordinates based on an image (e.g., coding pattern CP) captured by a built-in camera. For example, the input pen may be a smart pen, an electromagnetic pen, or an active pen, but the present invention is not limited thereto.

[0152] The display device 10 can perform a corresponding function based on accurate input coordinates by receiving coordinate data generated using data encoding without having to perform complex calculations and corrections. For example, the display device 10 can reduce costs and power consumption and can simplify the driving process. In addition, since the display device 10 includes a light blocking member BK covering a portion of the touch electrode SEN, the size of the display device 10 can be unrestricted, and the display device 10 can be applied to all electronic devices having a touch function.

[0153] In some embodiments, the coding pattern CP may include a first coding pattern CP_M (or a main coding pattern) and a second coding pattern CP_S (or an auxiliary coding pattern). The light blocking member BK may include a first light blocking member BK_M (or a first portion or a first light blocking area) corresponding to the first coding pattern CP_M and a second light blocking member BK_S (or a second portion or a second light blocking area) corresponding to the second coding pattern CP_S. The first light blocking member BK_M (or a first portion) and the second light blocking member BK_S (or a second portion) may have different line widths in the width direction. As will be described later, when the input device touches or is adjacent to the display device 10, the input coordinates may be determined based on the first coding pattern CP_M. When the input device is separated from the display device 10 (e.g., hovering), the input coordinates may be determined based on the combined shape of the first coding pattern CP_M and the second coding pattern CP_S (i.e., the coding pattern CP).

[0154] refer to Figure 8 and Fig. 9 , the coding pattern CP may be formed by overlapping the first coding pattern CP_M and the second coding pattern CP_S. The first coding pattern CP_M may have the first positioning information, and the second coding pattern CP_S may have the second positioning information. Fig.14 Description is made, but in one embodiment, the first positioning information and the second positioning information may be the same.

[0155] Furthermore, in an embodiment, the first coding pattern CP_M and the second coding pattern CP_S (or the first light blocking member BK_M and the second light blocking member BK_S) may have different sizes (or different areas) and different line widths. Figure 8 and Fig. 9 As shown in , when viewed on a plane, the size of the first coding pattern CP_M may be smaller than the size of the second coding pattern CP_S. Fig.10 As shown in , the line width W1 of the first coding pattern CP_M may be greater than the line width W2 of the second coding pattern CP_S.

[0156] The line width W1 of the first coding pattern CP_M and the line width W2 of the second coding pattern CP_S can be set within a range that does not cover the viewing angle of the light emitting element LED (or pixel). For example, when light is emitted from the light emitting element LED within a range up to a reference angle θ relative to the substrate SUB (for example, see Fig.10 ), the line width W1 of the first coding pattern CP_M can be set to a maximum value within a range in which the first coding pattern CP_M does not block light, and the line width W2 of the second coding pattern CP_S can be set to be smaller than the line width W1 of the first coding pattern CP_M.

[0157] In an embodiment, the first coding pattern CP_M and the second coding pattern CP_S may have different planar shapes. For example, when viewed on a plane, the second coding pattern CP_S may include a closed loop surrounding at least one of the first emission area EA1, the second emission area EA2, and the third emission area EA3, and according to one example, the second coding pattern CP_S may have a diamond planar shape as a whole. The first coding pattern CP_M may not include a closed loop, and may, for example, have a dot shape or an X shape as a whole. However, the present invention is not limited to this, and the first coding pattern CP_M and the second coding pattern CP_S may have the same or similar planar shapes (for example, refer to Fig.16 ).

[0158] Fig.11 It is used to explain the embodiment according to Figure 8 Figure 2 shows a coding pattern CP. Fig.12 is a diagram showing the contrast of the coding pattern CP according to the hovering distance. Fig.13 is a plan view showing the coding pattern CP. Fig.13 Can be used with Figure 8 correspond.

[0159] refer to Figures 11 to 13 , the input device 20 may include a camera 21 , and may decode the input coordinates based on an image of the display device 10 captured by the camera 21 .

[0160] Depending on the distance (or hovering distance) between the input device 20 and the display device 10, the depth of focus may vary, and the contrast in the captured image and the number of coding patterns CP may vary. When the display device 10 includes only the first coding pattern CP_M (or the first light blocking member BK_M) or the second coding pattern CP_S (or the second light blocking member BK_S), there may be limitations on the expression positioning.

[0161] Hereinafter, the first case CASE1 and the second case CASE2 will be described in sequence. First, in the first case CASE1, the input device 20 may be in contact with the display device 10 (i.e., the hovering distance is 0), and the camera 21 of the input device 20 and the display device 10 may be spaced apart by about A. For example, A may be about 23.6 mm. In this case, the first image IMAGE1 of the display device 10 may be obtained by the camera 21, and the coding pattern CP (e.g., a plurality of points in the first image IMAGE1) may be identified.

[0162] For example, refer to Fig.13 In the first case CASE1, an image of the first area AA1 may be obtained by a sensor (eg, a sensor having a size of about 40 μm) in the camera 21. Substantially only the first light blocking member BK_M (or the first coding pattern CP_M) may exist in the first area AA1.

[0163] refer to Fig.12 , in a comparative example in which the display device 10 includes only the first light blocking member BK_M (i.e., the first coding pattern CP_M), the first curve CURVE1 may represent the ratio (or area ratio) of the light blocking member BK in an image obtained by one sensor in the camera 21 or the contrast of the coding pattern CP. In an embodiment in which the display device 10 includes the first light blocking member BK_M (i.e., the first coding pattern CP_M) and the second light blocking member BK_S (i.e., the second coding pattern CP_S), the second curve CURVE2 may represent the ratio of the light blocking member BK in an image obtained by one sensor in the camera 21 or the contrast of the coding pattern CP.

[0164] When the hovering distance is 0, the ratio (or contrast) of the light blocking member BK may be the same or relatively high in the first and second curves CURVE1 and CURVE2. Therefore, the coding pattern CP may be accurately recognized regardless of the presence or absence of the second light blocking member BK_S (or the second coding pattern CP_S).

[0165] Next, in the second case CASE2, the input device 20 may be spaced apart from the display device 10 by a distance B (i.e., the hovering distance is B). In this case, the camera 21 of the input device 20 and the display device 10 may be spaced apart by about "A+B". For example, B may be about 10 mm. In this case, the second image IMAGE2 of the display device 10 may be obtained by the camera 21, and in some cases, the coding pattern CP may not be properly recognized.

[0166] For example, refer to Fig.13In the second case CASE2, an image of the second area AA2 may be obtained by one sensor in the camera 21. Components other than the first light blocking member BK_M (or the first coding pattern CP_M) may further exist in the second area AA2.

[0167] When the hovering distance is B, Fig.12 In the first curve CURVE1 and the second curve CURVE2, the ratio (or contrast) of the light blocking member BK can be relatively low. For example, based on the case where the hovering distance is 0, the ratio (or contrast) of the light blocking member BK in the first curve CURVE1 can be reduced by about 20%, and the ratio (or contrast) of the light blocking member BK in the second curve CURVE2 can be reduced by about 10%. Therefore, for an embodiment that also includes a second light blocking member BK_S (or a second coding pattern CP_S), the value of the second curve CURVE2 can be higher than the value of the first curve CURVE1 that does not include the second light blocking member BK_S (or the second coding pattern CP_S). Therefore, in a state where the hovering distance is greater than 0, the coding pattern CP that also includes the second coding pattern CP_S can be more accurately identified.

[0168] As another example, when the input device 20 is spaced apart from the display device 10 by C (ie, the hovering distance is C), the third area AA3 (refer to Fig.13 ) image. When the hovering distance is C, Fig.12 In the first curve CURVE1 and the second curve CURVE2, the ratio (or contrast) of the light blocking member BK may be lower. For example, based on the case where the hovering distance is 0, the ratio (or contrast) of the light blocking member BK in the first curve CURVE1 may be reduced by about 35%, and the ratio (or contrast) of the light blocking member BK in the second curve CURVE2 may be reduced by about 20%. In this case, the coding pattern CP including only the first coding pattern CP_M cannot be accurately identified.

[0169] As described above, when the coding pattern CP includes the second coding pattern CP_S in addition to the first coding pattern CP_M, the coding pattern CP can be more accurately recognized even in the hovering state of the input device 20 .

[0170] Meanwhile, when the coding pattern CP includes only the second coding pattern CP_S without the first coding pattern CP_M, recognition rate of the coding pattern CP may be relatively low because a ratio (or area ratio) of the light blocking member BK in an image or a contrast of the coding pattern CP is generally low.

[0171] In addition, when the size of the first coding pattern CP_M is as large as the size of the second coding pattern CP_S, the first coding pattern CP_M can be recognized even in the hovering state of the input device 20. However, the first coding pattern CP_M (i.e., the first coding pattern CP_M having a relatively large and thick line width) itself may be visually recognized by the user, or may deteriorate the light emitting characteristics of the display device 10. In addition, even when the input device 20 contacts or is adjacent to the display device 10 at an angle other than vertically, the coding pattern CP must be recognized. However, when the coding pattern CP (particularly the first coding pattern CP_M) is large, the distance between the coding pattern CP and other coding patterns CP may not be ensured.

[0172] That is, by reducing or minimizing the size of the first coding pattern CP_M having a large line width, it is possible to reduce or minimize the degradation of the luminous characteristics (e.g., viewing angle characteristics and white angle correlation) of the display device 10. In addition, the input performance (especially the input performance in the hovering state) can be maintained or improved by additionally using the second coding pattern CP_S having a relatively small line width.

[0173] Fig.14 and Fig.15 1 is a plan view for explaining position coding according to the arrangement of the light blocking member BK according to the embodiment. For the convenience of description, Fig.14 Only reference is shown Figure 8 The driving electrode TE (or the touch electrode SEN) and the light blocking member BK described above will be briefly described or omitted.

[0174] refer to Fig.14 and Fig.15 When viewed on a plane, the light blocking members BK11 to BK22 (or the coding pattern CP) may be arranged substantially in rows and columns. Positioning information may be determined by positions of the light blocking members BK11 to BK22 based on virtual lines (reference lines) L_H1, L_H2, L_V1, and L_V2 corresponding to rows and columns.

[0175] The first position code CODE_M may be composed of main light blocking members BK_M11 to BK_M22 (or the first light blocking member BK_M and the main coding pattern CP_M).

[0176] The eleventh main light blocking member BK_M11 may be adjacent to or aligned with at least one of the first horizontal line L_H1 and the first vertical line L_V1. In one embodiment, the eleventh main light blocking member BK_M11 may be located on the first horizontal line L_H1 and may be located on the right side of the first vertical line L_V1. In this case, the eleventh main light blocking member BK_M11 may have a value corresponding to "right".

[0177] The twelfth main light blocking member BK_M12 may be adjacent to or aligned with at least one of the first horizontal line L_H1 and the second vertical line L_V2. In one embodiment, the twelfth main light blocking member BK_M12 may be located on the first horizontal line L_H1 and may be located on the left side of the second vertical line L_V2. In this case, the twelfth main light blocking member BK_M12 may have a value corresponding to "left".

[0178] The twenty-first main light blocking member BK_M21 may be adjacent to or aligned with at least one of the second horizontal line L_H2 and the first vertical line L_V1. In one embodiment, the twenty-first main light blocking member BK_M21 may be located below the second horizontal line L_H2 and may be located on the first vertical line L_V1. In this case, the twenty-first main light blocking member BK_M21 may have a value corresponding to "lower".

[0179] The twenty-second main light blocking member BK_M22 may be adjacent to or aligned with at least one of the second horizontal line L_H2 and the second vertical line L_V2. In one embodiment, the twenty-second main light blocking member BK_M22 may be located above the second horizontal line L_H2 and may be located on the first vertical line L_V1. In this case, the twenty-second main light blocking member BK_M22 may have a value corresponding to "up".

[0180] The first position code CODE_M (first positioning information or first code) can be determined by a combination of the main light blocking members BK_M11 to BK_M22 (or their values). As can be seen from the above description, none of the main light blocking members in the first position code CODE_M overlaps any of the intersections of the vertical line and the horizontal line.

[0181] Similar to the first position code CODE_M, the second position code CODE_A may be composed of auxiliary light blocking members BK_S11 to BK_S22 (or a second light blocking member BK_S and an auxiliary coding pattern CP_S). However, unlike the first position code CODE_M, the auxiliary light blocking members BK_S11 to BK_S22 overlap with the intersection of the vertical line and the horizontal line. For example, the eleventh auxiliary light blocking member BK_S11 may be adjacent to or aligned with at least one of the first horizontal line L_H1 and the first vertical line L_V1. In one embodiment, the eleventh auxiliary light blocking member BK_S11 may be located on the first horizontal line L_H1, and most of the eleventh auxiliary light blocking member BK_S11 may be located on the right side of the first vertical line L_V1, for example, the center point of the eleventh auxiliary light blocking member BK_S11 is located on the right side of the first vertical line L_V1. In this case, the eleventh auxiliary light blocking member BK_S11 may have a value corresponding to "right".

[0182] The twelfth auxiliary light blocking member BK_S12 may be adjacent to or aligned with at least one of the first horizontal line L_H1 and the second vertical line L_V2. In one embodiment, the twelfth auxiliary light blocking member BK_S12 may be located on the first horizontal line L_H1, and (at least the center point) may be located on the left side of the second vertical line L_V2. In this case, the twelfth auxiliary light blocking member BK_S12 may have a value corresponding to "left".

[0183] The twenty-first auxiliary light blocking member BK_S21 may be adjacent to the second horizontal line L_H2 and the first vertical line L_V1. The twenty-first auxiliary light blocking member BK_S21 (e.g., at least a center point thereof) may be located below the second horizontal line L_H2 and may be located on the first vertical line L_V1. In this case, the twenty-first auxiliary light blocking member BK_S21 may have a value corresponding to "lower".

[0184] The 22nd auxiliary light blocking member BK_S22 may be adjacent to the second horizontal line L_H2 and the second vertical line L_V2. The 22nd auxiliary light blocking member BK_S22 (e.g., at least a center point thereof) may be located above the second horizontal line L_H2 and may be located on the first vertical line L_V1. In this case, the 22nd auxiliary light blocking member BK_S22 may have a value corresponding to "up".

[0185] The second position code CODE_A (second positioning information or second code) may be determined by a combination of the auxiliary light blocking members BK_S11 to BK_S22 (or their values). The second position code CODE_A may have the same value (or decoded value) as the first position code CODE_M.

[0186] The position code CODE may be composed of light blocking members BK11 to BK22 based on a combination of a first position code CODE_M and a second position code CODE_A. For example, the eleventh light blocking member BK11 may include the eleventh main light blocking member BK_M11 and the eleventh auxiliary light blocking member BK_S11 at the same positions where the eleventh main light blocking member BK_M11 and the eleventh auxiliary light blocking member BK_S11 appear in the first position code CODE_M and the second position code CODE_A, respectively. The twelfth light blocking member BK12 may include the twelfth main light blocking member BK_M12 and the twelfth auxiliary light blocking member BK_S12. The twenty-first light blocking member BK21 may include the twenty-first main light blocking member BK_M21 and the twenty-first auxiliary light blocking member BK_S21. The twenty-second light blocking member BK22 may include the twenty-second main light blocking member BK_M22 and the twenty-second auxiliary light blocking member BK_S22. Therefore, the position code CODE may include a first position code CODE_M and a second position code CODE_A having the same value (or decoded value).

[0187] In an embodiment, the center of the area of ​​the main light blocking member (the first light blocking member BK_M or the first coding pattern CP_M) may be the same as the center of the area of ​​the auxiliary light blocking member (the second light blocking member BK_S or the second coding pattern CP_S). Fig.14 As shown in FIG. 1 , in the eleventh light blocking member BK11 , the center of the region of the eleventh main light blocking member BK_M11 may be identical to the center of the region of the eleventh auxiliary light blocking member BK_S11 overlapping the eleventh main light blocking member BK_M11 .

[0188] For example, based on a virtual line closest to the light blocking member among the virtual lines L_H1, L_H2, L_V1, and L_V2, the main light blocking member (first light blocking member BK_M or first coding pattern CP_M) and the auxiliary light blocking member (second light blocking member BK_S or second coding pattern CP_S) may be located in the same direction and may be spaced apart from the virtual line by the same distance. Fig.14 As shown in , in the eleventh light blocking member BK11, the eleventh main light blocking member BK_M11 and the eleventh auxiliary light blocking member BK_S11 can be located on the right side of the first vertical line L_V1, and the eleventh main light blocking member BK_M11 and the eleventh auxiliary light blocking member BK_S11 (or the centers of their areas) can be located at the same distance from the first vertical line L_V1.

[0189] In another embodiment, the center of the area of ​​the main light blocking member (the first light blocking member BK_M or the first coding pattern CP_M) may be different from the center of the area of ​​the auxiliary light blocking member (the second light blocking member BK_S or the second coding pattern CP_S). Fig.15 As shown in FIG. 1 , in the eleventh light blocking member BK11 , the eleventh main light blocking member BK_M11 overlaps the eleventh auxiliary light blocking member BK_S11 . However, the center of the area of ​​the eleventh main light blocking member BK_M11 may be different from the center of the area of ​​the eleventh auxiliary light blocking member BK_S11 .

[0190] In other words, based on the virtual line closest to the light blocking member among the virtual lines L_H1, L_H2, L_V1, and L_V2, the main light blocking member (first light blocking member BK_M or first coding pattern CP_M) and the auxiliary light blocking member (second light blocking member BK_S or second coding pattern CP_S) may be located in the same direction and may be spaced apart from the virtual line by different distances. Fig.15 As shown in , in the eleventh light blocking member BK11, the centers of the eleventh main light blocking member BK_M11 and the eleventh auxiliary light blocking member BK_S11 may be located on the right side of the first vertical line L_V1, and the center of the eleventh main light blocking member BK_M11 may be spaced farther from the first vertical line L_V1 than the center of the eleventh auxiliary light blocking member BK_S11.

[0191] Similarly, the center of the twelfth main light blocking member BK_M12 may be spaced farther from the second vertical line L_V2 than the center of the twelfth auxiliary light blocking member BK_S12. The center of the twenty-first main light blocking member BK_M21 may be spaced farther from the second horizontal line L_H2 than the center of the twenty-first auxiliary light blocking member BK_S21. The center of the twenty-second main light blocking member BK_M22 may be spaced farther from the second horizontal line L_H2 than the center of the twenty-second auxiliary light blocking member BK_S22.

[0192] Considering Figure 6 According to the different sizes of the emission areas EA1 to EA3 shown in FIG. 1 , the positions of the main light blocking members BK_M11 to BK_M22 having a relatively large line width may be variously changed.

[0193] Fig.16 It shows that Figure 4 FIG. 1 is a plan view of another embodiment of the display device 10 in which an area A1 is enlarged.

[0194] refer to Figure 8 and Fig.16, in addition to the shape of the light blocking member BK (or the coding pattern CP) or the arrangement position of the first light blocking member BK_M (or the first coding pattern CP_M), Fig.16 The implementation method can be basically the same as Figure 8 Therefore, reference will be omitted. Figure 8 A description of the described configuration.

[0195] The coding pattern CP may include a first coding pattern CP_M (or main coding pattern) and a second coding pattern CP_S (or auxiliary coding pattern). The light blocking member BK may include a first light blocking member BK_M (or first portion) corresponding to the first coding pattern CP_M and a second light blocking member BK_S (or second portion) corresponding to the second coding pattern CP_S.

[0196] In an embodiment, the first coding pattern CP_M and the second coding pattern CP_S may have the same or similar planar shapes. For example, when viewed on a plane, the second coding pattern CP_S may include a closed loop portion surrounding at least one of the first emission area EA1, the second emission area EA2, and the third emission area EA3, and may have a rhombus planar shape as a whole. Similarly, the first coding pattern CP_M may include a closed loop portion surrounding at least one of the first emission area EA1, the second emission area EA2, and the third emission area EA3, and may have a rhombus planar shape as a whole. When the first coding pattern CP_M has a closed loop shape, the recognition sensitivity of the first coding pattern CP_M (and the coding pattern CP including the first coding pattern CP_M) can be further improved compared to the point shape or line shape discussed above. In other embodiments, the shape (and size) of the first coding pattern CP_M may be different. In this case, the shape (and size) of the first coding pattern CP_M can be variously changed within the range of reducing or minimizing the degradation of the luminous characteristics of the display device 10.

[0197] Fig.17 1 is a plan view for explaining position coding according to arrangement of a light blocking member BK according to an embodiment.

[0198] refer to Fig.14 , Fig.15 and Fig.17 , in addition to the shapes of the main light blocking members BK_M11 to BK_M22 (the first light blocking members BK_M or the first coding patterns CP_M), Fig.17 The implementation method can be basically the same as Fig.15 Therefore, reference will be omitted. Fig.14 and Fig.15Since each of the main light blocking members BK_M11 to BK_M22 is substantially the same as that of the reference Fig.16 The described first light blocking member BK_M is the same or similar, and thus a repeated description will be omitted.

[0199] like Fig.17 As shown in , the center of the area of ​​the main light blocking member (the first light blocking member BK_M or the first coding pattern CP_M) may be different from the center of the area of ​​the auxiliary light blocking member (the second light blocking member BK_S or the second coding pattern CP_S). For example, in the eleventh light blocking member BK11, the center of the area of ​​the eleventh main light blocking member BK_M11 may be different from the center of the area of ​​the eleventh auxiliary light blocking member BK_S11.

[0200] Based on the virtual line closest to the light blocking member among the virtual lines L_H1, L_H2, L_V1 and L_V2, the main light blocking member (the first light blocking member BK_M or the first coding pattern CP_M) and the auxiliary light blocking member (the second light blocking member BK_S or the second coding pattern CP_S) may be located in the same direction and may be spaced apart from the virtual line at different distances. For example, in the eleventh light blocking member BK11, the centers of the eleventh main light blocking member BK_M11 and the eleventh auxiliary light blocking member BK_S11 may be located on the right side of the first vertical line L_V1. In this case, the center of the eleventh main light blocking member BK_M11 may be spaced apart from the first vertical line L_V1 farther than the center of the eleventh auxiliary light blocking member BK_S11.

[0201] Similarly, the center of the twelfth main light blocking member BK_M12 may be spaced farther from the second vertical line L_V2 than the center of the twelfth auxiliary light blocking member BK_S12. The center of the twenty-first main light blocking member BK_M21 may be spaced farther from the second horizontal line L_H2 than the center of the twenty-first auxiliary light blocking member BK_S21. The center of the twenty-second main light blocking member BK_M22 may be spaced farther from the second horizontal line L_H2 than the center of the twenty-second auxiliary light blocking member BK_S22.

[0202] Fig.18 is a perspective view showing a touch input system according to an embodiment. Fig.19 It is shown that the Fig.18 1 is a block diagram of an embodiment of a display device 10 and an input device 20 in a touch input system.

[0203] refer to Fig.18 and Fig.19, the touch input system may include a display device 10 and an input device 20. The display device 10 may include a display panel 100, a display driver 200, a touch driver 400, a main processor 500, and a communication unit 600.

[0204] The display panel 100 may include a display unit DU and a touch sensing unit TSU. The display unit DU may include a plurality of pixels for displaying an image.

[0205] The touch sensing unit TSU may include a plurality of touch electrodes SEN for sensing a user's input (eg, a touch by a user's finger or a stylus) in a capacitive manner. The display device 10 may include a coding pattern CP (eg, a reference pattern). Figure 8 and Fig.16 ) to sense the touch of the input device 20. The coding pattern CP may have positioning information determined by the plane shape, arrangement, etc. of the light blocking member BK. At least one coding pattern CP or a combination of coding patterns CP may correspond to a value of a predetermined data code.

[0206] The display driver 200 may output signals and voltages for driving the display unit DU. The display driver 200 may provide data voltages to the data lines. The display driver 200 may provide power voltages to the power lines and may provide gate control signals to the gate driver.

[0207] The touch driver 400 may be connected to the touch sensing unit TSU. The touch driver 400 may provide a touch drive signal to a plurality of touch electrodes SEN of the touch sensing unit TSU, and sense the amount of change in capacitance between the plurality of touch electrodes SEN. The touch driver 400 may sense whether there is a user input based on the amount of change in capacitance between the plurality of touch electrodes SEN, and calculate the input coordinates.

[0208] The main processor 500 may control the operation of the display device 10. For example, the main processor 500 may provide digital video data to the display driver 200 so that the display panel 100 displays an image. For example, the main processor 500 may receive touch data from the touch driver 400 to determine the user's input coordinates, and then may generate digital video data according to the input coordinates or execute an application indicated by an icon displayed at the user's input coordinates. For another example, the main processor 500 may receive coordinate data from the input device 20 to determine the input coordinates of the input device 20, and then may generate digital video data according to the input coordinates or execute an application indicated by an icon displayed at the input coordinates of the input device 20.

[0209] The communication unit 600 may perform wired communication / wireless communication with an external device. For example, the communication unit 600 may send a communication signal to the communication module 24 of the input device 20 and receive a communication signal from the communication module 24 of the input device 20. The communication unit 600 may receive coordinate data composed of data codes from the input device 20 and provide the coordinate data to the main processor 500.

[0210] The input device 20 may include a camera 21, a piezoelectric sensor 22, a processor 23, a communication module 24, a memory 25, and a battery 26. For example, the input device 20 may be an input pen that generates coordinate data using an optical method. The input pen may be a smart pen, an electromagnetic pen, or an active pen, but the present invention is not limited thereto.

[0211] The camera 21 may be disposed in front of the input device 20. The camera 21 may capture the coding pattern CP. The camera 21 may continuously capture the coding pattern CP at corresponding positions along the movement of the input device 20. The camera 21 may provide the captured image to the processor 23.

[0212] The piezoelectric sensor 22 may sense pressure applied to the display device 10 by the input device 20. The piezoelectric sensor 22 may provide the processor 23 with pressure information of the input device 20.

[0213] The processor 23 may receive an image of the coding pattern CP captured by the camera 21. The processor 23 may convert the coding pattern CP into corresponding data codes, and may generate coordinate data by combining the data codes. The processor 23 may send the generated coordinate data to the display device 10 through the communication module 24.

[0214] The processor 23 can quickly generate coordinate data without complicated calculation and correction by receiving an image of a coding pattern CP and converting at least one coding pattern CP (or a combination of coding patterns CP) into data coding in a one-to-one manner. Therefore, the touch input system can perform corresponding functions based on precise input coordinates, reduce costs and power consumption, and simplify the driving process. In addition, the size of the touch input system can be unlimited, and the touch input system can be applied to all electronic devices with touch functions by including a plurality of coding patterns CP set on the touch sensing unit TSU, the color filter layer, or the wavelength conversion layer.

[0215] The communication module 24 may perform wired / wireless communication with an external device. For example, the communication module 24 may send and receive communication signals to and from the communication unit 600 of the display device 10. The communication module 24 may receive coordinate data consisting of data encoding from the processor 23, and may provide the coordinate data to the communication unit 600.

[0216] The memory 25 may store data for driving the input device 20. The input device 20 may convert at least one coding pattern CP (or a combination of coding patterns CP) into data codes in a one-to-one manner and directly provide the coordinate data to the display device 10. Therefore, a memory 25 having a relatively small capacity may be included.

[0217] In the display device and the touch input system according to the embodiment of the present invention, the light blocking member (ie, the coding pattern having positioning information) may include a first portion and a second portion having different line widths. The input device may quickly generate input coordinates using the light blocking member.

[0218] In addition, by reducing or minimizing the size of the first portion having a large line width (i.e., the first coding pattern), the degradation of the light emitting characteristics of the display device can be reduced or minimized. In addition, by using the second portion having a small line width (i.e., the second coding pattern), the input performance of the input device in the hovering state can be improved.

[0219] The effects according to the embodiments of the present invention are not limited to the above-described contents, and more various effects are included in the present disclosure.

[0220] Although the technical scope of the present disclosure has been described in detail according to the above-mentioned embodiments, it should be noted that the above-mentioned embodiments are for the purpose of description rather than for the purpose of limitation. In addition, it will be appreciated by those skilled in the art that various modifications may be made within the technical scope of the present disclosure. The embodiments may be combined to form additional embodiments.

Claims

1. A display device, characterized in that: include: A display panel comprising an emitting area and a non-emitting area between adjacent ones of the emitting areas, each of the emitting areas being configured to emit light; A sensing electrode, disposed in the non-emitting area of ​​the display panel; as well as a light blocking member disposed on a portion of the sensing electrode, wherein the light blocking member is configured to absorb light of a specific wavelength, and another portion of the sensing electrode that does not overlap with the light blocking member is configured to reflect the light of the specific wavelength, and Wherein, when viewed on a plane, the light blocking member includes a first portion and a second portion having different line widths in a first direction.

2. The display device according to claim 1, characterized in that The light blocking member is configured to absorb infrared rays, and the sensing electrode is configured to reflect infrared rays, wherein the light blocking member has a grid structure that does not overlap with the emission areas of the display panel and surrounds at least one of the emission areas, and Wherein, the light blocking member is a coded pattern having positioning information determined by the arrangement of the light blocking member.

3. The display device according to claim 2, characterized in that: The coding pattern includes a first coding pattern and a second coding pattern formed to overlap each other, The size of the first coding pattern is smaller than the size of the second coding pattern, and A line width of the first coding pattern is greater than a line width of the second coding pattern.

4. The display device according to claim 3, characterized in that: The second coding pattern comprises a closed loop surrounding at least one of the emission areas, and The first encoding pattern does not include a closed loop.

5. The display device according to claim 3, characterized in that: The center of the area of ​​the first coding pattern corresponds to the center of the area of ​​the second coding pattern.

6. The display device according to claim 3, characterized in that: The center of the area of ​​the first coding pattern and the center of the area of ​​the second coding pattern are located at different positions.

7. The display device according to claim 3, characterized in that: When viewed on a plane, a plurality of light blocking members including the light blocking member are arranged in rows and columns, The positioning information is determined by arrangement positions of the plurality of light blocking members with respect to virtual lines corresponding to the rows and the columns, and Based on a virtual line among the virtual lines that is closest to the light blocking member, the first coding pattern and the second coding pattern are positioned in the same direction and are spaced apart from the virtual line that is closest to the light blocking member by the same distance.

8. The display device according to claim 3, characterized in that: When viewed on a plane, a plurality of light blocking members including the light blocking member are arranged in rows and columns, The positioning information is determined by arrangement positions of the plurality of light blocking members with respect to virtual lines corresponding to the rows and the columns, and Based on a virtual line among the virtual lines that is closest to the light blocking member, the first coding pattern and the second coding pattern are positioned in the same direction and are spaced apart from the virtual line that is closest to the light blocking member by different distances.

9. The display device according to claim 3, characterized in that: Each of the first encoding pattern and the second encoding pattern includes a closed loop surrounding at least one of the transmit areas.

10. The display device according to claim 1, characterized in that: The display panel comprises: substrate; A transistor, disposed on the substrate; a light emitting element, disposed on the transistor; and an encapsulation layer, arranged on the substrate to cover the light emitting element, wherein the sensing electrode is arranged on the encapsulation layer, Wherein, the light blocking member is directly disposed on the sensing electrode.

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