Display device, touch system, and touch panel

Abstract

The invention relates to a display device, a touch system and a touch panel. The display device comprises a touch panel, comprising first dummy electrodes extending in a first direction and connected to each other, second dummy electrodes extending in a second direction crossing the first direction and connected to each other, first sensing electrodes disposed between the first dummy electrodes and electrically floating with the first dummy electrodes, and second sensing electrodes disposed between the second dummy electrodes and electrically floating with the second dummy electrodes; and a touch panel driver that drives the touch panel.

Description

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This application claims the priority of Korean Patent Application No. 10-2023-0166856 filed in the Korean Intellectual Property Office on November 27, 2023, the contents of which are incorporated herein by reference in their entirety. Technical Field

[0003] Embodiments of the present disclosure relate to a display device, a touch system including the display device, and a touch panel. More specifically, embodiments of the present disclosure relate to a display device including a touch panel, a touch system including the display device, and a touch panel. Background Art

[0004] Electronic devices that provide images to users, such as smart phones, digital cameras, notebook computers, navigation systems, and smart TVs, include display devices that display images. The display devices generate images and provide the images to users through display screens.

[0005] The display device includes a display panel that displays an image, a touch panel that is disposed on the display panel and detects a user's touch, and a digitizer that is disposed under the display panel and detects a touch of a pen. The digitizer may be implemented using an electromagnetic method or an electromagnetic resonance method.

[0006] The digitizer includes a plurality of coils. When the user moves the pen on the display device, the pen is driven by an AC signal that generates an oscillating magnetic field, and the oscillating magnetic field induces a signal in the coil. The position of the pen is detected by the signal induced in the coil. The digitizer determines the position of the pen by detecting the electromagnetic changes that occur when the pen approaches.

[0007] Two input devices such as a touch panel and a digitizer may be used separately, which increases the thickness of the display device. A technology for reducing the thickness of the display device is desired. Summary of the invention

[0008] An embodiment of the present disclosure provides a display device that can detect a first object and a second object through a touch panel.

[0009] An embodiment of the present disclosure provides a touch system including a display device.

[0010] An embodiment of the present disclosure provides a touch panel.

[0011] An embodiment of the present disclosure provides a display device, including: a touch panel, including first dummy electrodes extending in a first direction and connected to each other, second dummy electrodes extending in a second direction crossing the first direction and connected to each other, first sensing electrodes arranged between the first dummy electrodes and electrically floating with the first dummy electrodes, and second sensing electrodes arranged between the second dummy electrodes and electrically floating with the second dummy electrodes; and a touch panel driver, driving the touch panel.

[0012] The first dummy electrodes may be connected to each other through a connection line, at least two of the first dummy electrodes and the connection line may surround the first sensing electrode, the second dummy electrodes may be connected to each other through a connection line, and at least two of the second dummy electrodes and the connection line may surround the second sensing electrode.

[0013] The first dummy electrode and the first sensing electrode may be formed on the same layer.

[0014] The first dummy electrode, the second dummy electrode, the first sensing electrode, and the second sensing electrode may be formed on the same layer.

[0015] The first sensing electrode may include a first sub-sensing electrode and a second sub-sensing electrode, and at least one of the first dummy electrodes may be disposed between the first sub-sensing electrode and the second sub-sensing electrode.

[0016] The first dummy electrode and the second dummy electrode may be connected to each other.

[0017] The touch panel driver may detect coordinates of a first object in a first touch period of one frame, and may detect coordinates of a second object in a second touch period of one frame.

[0018] The touch panel driver may transmit a touch driving signal to the first sensing electrode in a first touch period, receive a first touch sensing signal from the second sensing electrode in the first touch period, and detect coordinates of the first object based on the first touch sensing signal.

[0019] The touch panel driver may receive a 2-1st touch sensing signal from the first sensing electrode in the second touch period, receive a 2-2nd touch sensing signal from the second sensing electrode in the second touch period, and detect coordinates of the second object based on the 2-1st touch sensing signal and the 2-2nd touch sensing signal.

[0020] The touch panel driver may detect the coordinates of the second object in the second direction based on the 2-1 th touch sensing signal, and detect the coordinates of the second object in the first direction based on the 2-2 th touch sensing signal.

[0021] The second object may generate an eddy current in at least one of the first dummy electrode and the second dummy electrode.

[0022] The frequency of the first touch period may be less than the frequency of the second touch period.

[0023] The touch panel driver may include: a receiver that receives a signal from the touch panel; a transmitter that transmits a signal to the touch panel; a switch part that selectively connects the first sensing electrode to the receiver or the transmitter; and a sensing controller that controls the receiver, the transmitter, and the switch part.

[0024] The switch portion may connect the first sensing electrode to the transmitter in the first touch period, and may connect the first sensing electrode to the receiver in the second touch period.

[0025] The second touch period may include a first sub-touch period and a second sub-touch period; and the touch panel driver may transmit a touch signal to the first sensing electrode in the first sub-touch period, receive a 2-1 touch sensing signal from the first sensing electrode in the second sub-touch period, receive a 2-2 touch sensing signal from the second sensing electrode in the second sub-touch period, and detect the coordinates of the second object based on the 2-1 touch sensing signal and the 2-2 touch sensing signal.

[0026] Another embodiment of the present disclosure provides a touch system, including: a display device; and an input device, generating eddy current in the display device. The display device includes: a touch panel, including first dummy electrodes extending in a first direction and connected to each other, second dummy electrodes extending in a second direction crossing the first direction and connected to each other, first sensing electrodes disposed between the first dummy electrodes and electrically floating with the first dummy electrodes, and second sensing electrodes disposed between the second dummy electrodes and electrically floating with the second dummy electrodes; and a touch panel driver, driving the touch panel.

[0027] The input device may include: an input device driving portion that generates a magnetic field generating signal; a power supply portion that supplies power to the input device driving portion; and a magnetic field generating portion that generates a magnetic field corresponding to the magnetic field generating signal.

[0028] The input device driving portion may generate a magnetic field generating signal based on the pressure of the input device.

[0029] The input device may further include: a pressure measuring part which measures the pressure of the input device.

[0030] The input device may provide a pressure of the input device to the display device.

[0031] The input device may indicate to the display device whether power is supplied to the input device driving portion.

[0032] The input device may further include: a wireless communication section that performs wireless communication.

[0033] The touch period during which the coordinates of the input device are detected may include a first sub-touch period and a second sub-touch period. The touch panel driver may transmit a touch signal to the first sensing electrode in the first sub-touch period, receive a 2-1st touch sensing signal from the first sensing electrode in the second sub-touch period, receive a 2-2nd touch sensing signal from the second sensing electrode in the second sub-touch period, and detect the coordinates of the input device based on the 2-1st touch sensing signal and the 2-2nd touch sensing signal.

[0034] The input device may include: a receiving part that receives a signal corresponding to the touch signal; a transmitting part that transmits the magnetic field generating signal to the magnetic field generating part; and a switching part that selectively connects the input device driving part to the receiving part or the transmitting part.

[0035] The input device driving part may control the switching part, and when the input device receives a signal corresponding to the touch signal, the switching part may connect the input device driving part to the transmission part.

[0036] Another embodiment of the present disclosure provides a touch panel, including: first dummy electrodes extending in a first direction and connected to each other; second dummy electrodes extending in a second direction intersecting the first direction and connected to each other; first sensing electrodes arranged between the first dummy electrodes and electrically floating with the first dummy electrodes; second sensing electrodes arranged between the second dummy electrodes and electrically floating with the second dummy electrodes; and a touch panel driver detecting coordinates of a first object in a first touch period of a frame and detecting coordinates of a second object in a second touch period of a frame.

[0037] The display device according to the embodiment of the present disclosure can detect the touch (or input) of the first object and the second object without a separate input device such as a digitizer. Therefore, the thickness of the display device can be reduced and the cost of the display device can be reduced.

[0038] However, the effects of the embodiments of the present disclosure are not limited to the above-described effects and may be variously extended without departing from the spirit and scope of the embodiments of the present disclosure. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] Figure 1 A touch system according to an embodiment of the present disclosure is shown.

[0040] Figure 2 A touch system according to an embodiment of the present disclosure is shown.

[0041] Figure 3 yes Figure 1A cross-sectional view of a display device.

[0042] Figure 4 yes Figure 3 Cross-section of an electronic panel.

[0043] Figure 5 yes Figure 4 A cross-sectional view of a display panel.

[0044] Figure 6 yes Figure 4 A top plan view of a portion of an electronics panel.

[0045] Figure 7 yes Figure 4 Cross-section of an electronic panel.

[0046] Figure 8 yes Figure 4 A top plan view of a portion of an electronics panel.

[0047] Fig. 9 Show Figure 8 Example of the switch section.

[0048] Fig.10 Show Figure 8 An example of a touch panel driver driving a touch panel.

[0049] Fig.11 Show Figure 8 An example in which a touch panel driver drives the touch panel in a first touch period.

[0050] Fig.12 and Fig.13 Show Figure 8 An example in which a touch panel driver drives the touch panel in the second touch period.

[0051] Fig.14 Show Figure 8 Examples of sensing electrodes and dummy electrodes.

[0052] Fig.15 yes Fig.14 An enlarged view of the first area A1.

[0053] Fig.16 Show Figure 8 Examples of sensing electrodes and dummy electrodes.

[0054] Fig.17 Show Figure 1 An example of an input device.

[0055] Fig.18 An example in which a touch panel driver of a touch system according to an embodiment of the present disclosure drives a touch panel is shown.

[0056] Fig.19 Show Fig.18 An example of an input device for a touch system. DETAILED DESCRIPTION

[0057] Hereinafter, embodiments of the present disclosure will be described in detail with reference to the accompanying drawings. In addition, the embodiments of the present invention may take different forms and are not limited to the embodiments set forth herein. The embodiments described herein are provided for the purpose of fully describing the technical features of the present invention so that those skilled in the art can easily practice the present invention.

[0058] Throughout the specification, when an element is described as being "connected" to another element, this includes not only "direct connection" but also "indirect connection" with another device between the element and the other element. The terms used herein are for the purpose of describing particular embodiments and are not intended to limit the scope of the present invention.

[0059] Hereinafter, embodiments of the present disclosure will be described in detail with reference to the accompanying drawings.

[0060] Figure 1 A touch system according to an embodiment of the present disclosure is shown.

[0061] refer to Figure 1 In an embodiment, the touch system includes a display device DD and an input device PN.

[0062] The display device DD can detect a first input of a first object (such as a part of a user's body) and a second input of a second object (such as an input device PN). The display device DD is activated according to the electrical signal. For example, the display device DD is one of a mobile phone, a tablet computer, a car navigation system, a game console, and a wearable device, but is not necessarily limited thereto. Figure 1 The case where the display device DD is a mobile phone is illustrated.

[0063] An active area 1000A and a peripheral area 1000NA are defined in the display device DD. The display device DD displays an image through the active area 1000A. The active area 1000A includes a surface defined by a first direction DR1 and a second direction DR2 crossing the first direction DR1. The peripheral area 1000NA surrounds the active area 1000A. An image is displayed in a third direction DR3 perpendicular to a plane defined by the first direction DR1 and the second direction DR2.

[0064] The display device DD may detect a first input. The first input is one of various types of external inputs such as a part of a user's body, light, heat, or pressure.

[0065] Figure 1The display device DD shown in FIG. 4 can detect a second input from an input device PN. The input device PN is a device other than the user's body. For example, the input device PN is one of an active electrostatic (AES) pen, an electromagnetic resonance (EMR) pen, a stylus pen, a touch pen, and an electronic pen.

[0066] Figure 2 FIG. 1 is a diagram illustrating a touch system according to an embodiment of the present disclosure. Figure 2 When the same or similar reference numerals are used as in the reference Figure 1 The components described are the same or similar components, and their description is omitted.

[0067] Figure 2 The display device DD-1 is shown folded at a predetermined angle. An active area 1000A-1 and a peripheral area 1000NA-1 are defined in the display device DD-1. Figure 2 In an embodiment, when the display device DD-1 is unfolded, the active area 1000A-1 includes a plane defined by the first direction DR1 and the second direction DR2.

[0068] The active area 1000A-1 includes a first area 1000A1, a second area 1000A2, and a third area 1000A3. The first area 1000A1, the second area 1000A2, and the third area 1000A3 are sequentially defined in the second direction DR2. The second area 1000A2 can be bent relative to a folding axis 1000FX extending in the first direction DR1. Therefore, the first area 1000A1 and the third area 1000A3 can be referred to as non-foldable areas, and the second area 1000A2 can be referred to as a foldable area.

[0069] When the display device DD-1 is folded, the first area 1000A1 and the third area 1000A3 may face each other. Therefore, in the fully folded state, the active area 1000A-1 is not exposed to the outside, which may be referred to as an inner fold. However, this is an example, and the operation of the display device DD-1 is not necessarily limited thereto.

[0070] For example, when the display device DD-1 is folded, the first area 1000A1 and the third area 1000A3 may face opposite directions. Therefore, in a fully folded state, the active area 1000A-1 is exposed to the outside, which may be referred to as an outer fold.

[0071] In an embodiment, the display device DD-1 is capable of performing one of an inner folding operation and an outer folding operation. In an embodiment, the display device DD-1 is capable of performing both an inner folding operation and an outer folding operation. For example, the same area (e.g., the second area 1000A2) of the display device DD-1 can be folded inwardly or folded outwardly.

[0072] Despite Figure 2 In the embodiment, one foldable region and two non-foldable regions are illustrated as examples, but the number of foldable regions and the number of non-foldable regions are not necessarily limited thereto. For example, in some embodiments, the display device DD-1 includes two or more non-foldable regions and a plurality of foldable regions disposed between adjacent non-foldable regions.

[0073] Figure 2 The folding axis 1000FX is shown to extend in the first direction DR1, but the embodiments of the present disclosure are not necessarily limited thereto. For example, in some embodiments, the folding axis 1000FX extends in the second direction DR2. For example, the first area 1000A1, the second area 1000A2, and the third area 1000A3 are sequentially arranged along the first direction DR1.

[0074] Figure 3 yes Figure 1 A cross-sectional view of a display device.

[0075] refer to Figure 3 In an embodiment, the display device DD includes an electronic panel EP, an impact absorbing layer ISL, a panel protection layer PPL, a first conductive sheet CTS1, a second conductive sheet CTS2, a window WIN, a window protection layer WP, a hard coating layer HC, and first to sixth adhesive layers AL1 to AL6.

[0076] The electronic panel EP may display an image, sense the first input and the second input described above, and reduce the reflectivity of external light. The electronic panel EP includes a display panel, a touch panel, and an anti-reflection layer, and will be referred to below. Figure 4 Describe the configuration of the electronic panel EP.

[0077] The impact absorbing layer ISL is disposed above the electronic panel EP. The impact absorbing layer ISL protects the electronic panel EP by absorbing external impact. The impact absorbing layer ISL may be manufactured in the form of a stretch film.

[0078] The impact absorbing layer ISL includes a flexible plastic material. The flexible plastic material may be a synthetic resin film. For example, the impact absorbing layer ISL includes a flexible plastic material such as polyimide (PI) or polyethylene terephthalate (PET).

[0079] The panel protection layer PPL is disposed under the electronic panel EP. The panel protection layer PPL protects the lower part of the electronic panel EP. The panel protection layer PPL includes a flexible plastic material. For example, the panel protection layer PPL includes polyethylene terephthalate (PET).

[0080] The first conductive sheet CTS1 is disposed under the panel protection layer PPL. The second conductive sheet CTS2 is disposed under the first conductive sheet CTS1. The first conductive sheet CTS1 and the second conductive sheet CTS2 each include metal.

[0081] The first conductive sheet CTS1 includes a ferromagnetic material. For example, the first conductive sheet CTS1 is a ferrite sheet. The second conductive sheet CTS2 includes a diamagnetic material. For example, the second conductive sheet CTS2 is a copper sheet. The first conductive sheet CTS1 and the second conductive sheet CTS2 shield the electronic panel EP from an external magnetic field applied to the lower part of the display device DD.

[0082] The window WIN is disposed above the impact absorbing layer ISL. The window WIN protects the electronic panel EP from external scratches. The window WIN is optically transparent. The window WIN may include glass. However, the embodiment is not necessarily limited thereto, and the window WIN may include a synthetic resin film.

[0083] The window WIN may have a multi-layer structure or a single-layer structure. For example, in some embodiments, the window WIN includes a plurality of synthetic resin films bonded with an adhesive, or in some embodiments includes a glass substrate and a synthetic resin film bonded with an adhesive.

[0084] The window protection layer WP is disposed over the window WIN. The window protection layer WP includes a flexible plastic material such as polyimide or polyethylene terephthalate. The hard coating layer HC is disposed on an upper surface of the window protection layer WP.

[0085] The printing layer PIT is disposed on the lower surface of the window protection layer WP. The printing layer PIT is black, but the color of the printing layer PIT is not necessarily limited thereto. The printing layer PIT is adjacent to the edge of the window protection layer WP. The printing layer PIT overlaps the non-display area NDA. The non-display area NDA overlaps the reference Figure 1 The described peripheral area 1000NA corresponds.

[0086] The first adhesive layer AL1 is disposed between the window protection layer WP and the window WIN. The window protection layer WP and the window WIN are bonded to each other through the first adhesive layer AL1. The first adhesive layer AL1 covers the printed layer PIT.

[0087] The second adhesive layer AL2 is disposed between the window WIN and the impact absorbing layer ISL. The window WIN and the impact absorbing layer ISL are bonded to each other through the second adhesive layer AL2.

[0088] The third adhesive layer AL3 is disposed between the impact absorbing layer ISL and the electronic panel EP. The impact absorbing layer ISL and the electronic panel EP are bonded to each other through the third adhesive layer AL3.

[0089] The fourth adhesive layer AL4 is disposed between the electronic panel EP and the panel protection layer PPL. The electronic panel EP and the panel protection layer PPL are bonded to each other through the fourth adhesive layer AL4.

[0090] The fifth adhesive layer AL5 is disposed between the panel protection layer PPL and the first conductive sheet CTS1. The panel protection layer PPL and the first conductive sheet CTS1 are bonded to each other through the fifth adhesive layer AL5.

[0091] The sixth adhesive layer AL6 is disposed between the first conductive sheet CTS1 and the second conductive sheet CTS2. The first conductive sheet CTS1 and the second conductive sheet CTS2 are bonded to each other through the sixth adhesive layer AL6.

[0092] The first to sixth adhesive layers AL1 to AL6 each include at least one of a pressure sensitive adhesive (PSA) and an optically clear adhesive (OCA), but the type of adhesive is not necessarily limited thereto.

[0093] Figure 4 yes Figure 3 Cross-section of an electronic panel.

[0094] refer to Figure 4 In an embodiment, the electronic panel EP includes a display panel DP, a touch panel ISP disposed on the display panel DP, and an anti-reflection layer RPL disposed on the touch panel ISP. The display panel DP is a flexible display panel. For example, the display panel DP includes a flexible substrate and a plurality of elements disposed on the flexible substrate.

[0095] In an embodiment, the display panel DP is a light-emitting display panel. However, the embodiments of the present disclosure are not necessarily limited to the above-mentioned types of display panels DP. For example, the display panel DP is one of an organic light-emitting display panel, a quantum dot display panel, a micron LED display panel, and a nano LED display panel. The light-emitting layer of the organic light-emitting display panel includes an organic light-emitting material. The light-emitting layer of the quantum dot display panel includes quantum dots and / or quantum rods. The light-emitting layer of the micron LED display panel includes micron LEDs. The light-emitting layer of the nano LED display panel includes nano LEDs. In the following, the display panel DP will be described as an organic light-emitting display panel.

[0096] Touch panel ISP is included below in Figure 8 When manufacturing the electronic panel EP, the touch panel ISP is directly formed on the display panel DP.

[0097] The anti-reflection layer RPL is disposed on the touch panel ISP. When the electronic panel EP is manufactured, the anti-reflection layer RPL is directly formed on the touch panel ISP. The anti-reflection layer RPL is an anti-reflection film for external light. The anti-reflection layer RPL reduces the reflectivity of external light incident on the display panel DP.

[0098] In an embodiment, the touch panel ISP is directly formed on the display panel DP, and the anti-reflection layer RPL is directly formed on the touch panel ISP, but the embodiments of the present disclosure are not necessarily limited thereto. For example, in some embodiments, the touch panel ISP is manufactured separately and attached to the display panel DP through an adhesive layer, and the anti-reflection layer RPL is manufactured separately and attached to the touch panel ISP through an adhesive layer.

[0099] Figure 5 yes Figure 4 A cross-sectional view of a display panel.

[0100] refer to Figure 5 The display panel DP includes a substrate SUB, a circuit element layer DP-CL disposed on the substrate SUB, a display element layer DP-OLED disposed on the circuit element layer DP-CL, and a thin film encapsulation layer TFE disposed on the display element layer DP-OLED.

[0101] The substrate SUB includes a display area DA and a non-display area NDA around the display area DA. The substrate SUB includes a flexible plastic material such as polyimide (PI).

[0102] The substrate SUB provides a base surface on which the circuit element layers DP-CL are disposed. The substrate SUB is one of a glass substrate, a metal substrate, and a polymer substrate. However, the embodiment is not necessarily limited thereto, and in some embodiments, the substrate SUB is one of an inorganic layer, an organic layer, and a composite material layer.

[0103] The substrate SUB has a multi-layer structure. For example, the substrate SUB includes a first synthetic resin layer, a silicon oxide (SiO x ) layer, an amorphous silicon (a-Si) layer disposed on the silicon oxide layer, and a second synthetic resin layer disposed on the amorphous silicon layer. The silicon oxide layer and the amorphous silicon layer may be referred to as a base barrier layer.

[0104] Each of the first synthetic resin layer and the second synthetic resin layer includes a polyimide-based resin. In addition, each of the first synthetic resin layer and the second synthetic resin layer may include at least one of an acrylic resin, a methacrylic resin, a polyisoprene resin, a vinyl resin, an epoxy resin, a urethane resin, a cellulose resin, a siloxane resin, a polyamide resin, and a perylene resin. In this specification, the "~~" resin includes a functional group of "~~".

[0105] The circuit element layer DP-CL is disposed on the substrate SUB. The circuit element layer DP-CL includes an insulating layer, a semiconductor pattern, a conductive pattern, and a signal line. The insulating layer, the semiconductor layer, and the conductive layer may be formed on the substrate SUB by coating or deposition, and then the insulating layer, the semiconductor layer, and the conductive layer are selectively patterned by a plurality of photolithography processes. Accordingly, the semiconductor pattern, the conductive pattern, and the signal line in the circuit element layer DP-CL are formed.

[0106] The display element layer DP-OLED is disposed on the circuit element layer DP-CL. The display element layer DP-OLED is disposed in the display area DA. The display element layer DP-OLED includes the following Figure 6 , and are provided in the display area DA. Each of the pixels includes a light emitting element connected to a transistor provided in the circuit element layer DP-CL.

[0107] The thin film encapsulation layer TFE is disposed on the circuit element layer DP-CL and covers the display element layer DP-OLED. The thin film encapsulation layer TFE includes an inorganic layer and an organic layer between the inorganic layers. The inorganic layer protects the pixel from moisture and oxygen. The organic layer protects the pixel from foreign matter such as dust particles.

[0108] Figure 6 yes Figure 4 A top plan view of a portion of an electronics panel.

[0109] refer to Figure 6 In an embodiment, the electronic panel EP (see Figure 4 ) includes a display panel DP, a scan driver SDV, a data driver DDV, a light emitting driver EDV and a plurality of first pads PD1.

[0110] In a plan view, the display panel DP has a rectangular shape having long sides extending in the first direction DR1 and short sides extending in the second direction DR2, but the shape of the display panel DP is not necessarily limited thereto. The display panel DP includes a display area DA and a non-display area NDA surrounding the display area DA.

[0111] The display panel DP includes a plurality of pixels PX, a plurality of scan lines SL1 to SLm, a plurality of data lines DL1 to DLn, a plurality of emission lines EL1 to ELm, first and second control lines CSL1 and CSL2, first and second power lines PL1 and PL2, and a connection line CNL. m and n are positive integers.

[0112] The pixels PX are arranged in the display area DA. The scanning driver SDV and the light emitting driver EDV are arranged in the non-display area NDA on the opposite side of the display area DA adjacent to the long side of the display panel DP. The data driver DDV is arranged in the non-display area NDA adjacent to one of the short sides of the display panel DP. When viewed in a plan view, the data driver DDV is adjacent to the lower end of the display panel DP.

[0113] The scan lines SL1 to SLm extend in the second direction DR2 and are connected to the pixels PX and the scan driver SDV. The data lines DL1 to DLn extend in the first direction DR1 and are connected to the pixels PX and the data driver DDV. The emission lines EL1 to ELm extend in the second direction DR2 and are connected to the pixels PX and the emission driver EDV.

[0114] The first power line PL1 extends in the first direction DR1 and is disposed in the non-display area NDA. The first power line PL1 is disposed between the display area DA and the light emitting driver EDV.

[0115] The connection line CNL extends in the second direction DR2, is arranged in the first direction DR1, and is connected to the first power line PL1 and the pixel PX. The first voltage is transmitted to the pixel PX through the first power line PL1 and the connection line CNL connected to each other.

[0116] The second power line PL2 is disposed in the non-display area NDA and extends along the long side of the display panel DP and another short side of the display panel DP where the data driver DDV is not disposed. The second power line PL2 is disposed outside the scan driver SDV and the light emitting driver EDV and between the scan driver SDV and the light emitting driver EDV and the edge of the display panel DP.

[0117] In addition, the second power line PL2 extends toward the display area DA and is connected to the pixel PX. A second voltage having a level lower than that of the first voltage is transmitted to the pixel PX through the second power line PL2.

[0118] The first control line CSL1 is connected to the scan driver SDV and extends toward the lower end of the display panel DP. The second control line CSL2 is connected to the light emitting driver EDV and extends toward the lower end of the display panel DP. The data driver DDV is disposed between the first control line CSL1 and the second control line CSL2.

[0119] The first pad PD1 is disposed in the non-display area NDA adjacent to the lower end of the display panel DP and is closer to the lower end of the display panel DP than the data driver DDV. The data driver DDV, the first power line PL1, the second power line PL2, the first control line CSL1, and the second control line CSL2 are connected to the first pad PD1. The data lines DL1 to DLn are connected to the data driver DDV, and the data driver DDV is connected to the first pads PD1 corresponding to the data lines DL1 to DLn, respectively.

[0120] In addition, the display device DD further includes a timing controller for controlling the operation of the scan driver SDV, the data driver DDV, and the light emitting driver EDV, and a voltage generating part for generating a first voltage and a second voltage. The timing controller and the voltage generating part are connected to the first pad PD1 through a printed circuit board. In an embodiment, the timing controller and / or the voltage generating part are integrated with the data driver DDV.

[0121] The scan driver SDV generates a plurality of scan signals, and the scan signals are transmitted to the pixels PX through the scan lines SL1 to SLm. The data driver DDV generates a plurality of data voltages, and the data voltages are transmitted to the pixels PX through the data lines DL1 to DLn. The light emitting driver EDV generates a plurality of light emitting signals, and the light emitting signals are transmitted to the pixels PX through the light emitting lines EL1 to ELm.

[0122] The pixel PX receives a data voltage in response to the scan signal, and displays an image by emitting light having brightness corresponding to the data voltage in response to the light emission signal.

[0123] Figure 7 Graphics Figure 4 Cross-section of an electronic panel.

[0124] refer to Figure 7 In an embodiment, the pixel PX includes a transistor TR and a light emitting element OLED. The light emitting element OLED includes a first electrode AE ​​(or anode), a second electrode CE (or cathode), a hole control layer HCL, an electron control layer ECL and a light emitting layer EML.

[0125] The transistor TR and the light emitting element OLED are disposed on the substrate SUB. Although one transistor TR is illustrated as an example, basically, the pixel PX may include a plurality of transistors for driving the light emitting element OLED and at least one capacitor.

[0126] The display area DA includes a light emitting area LA corresponding to each of the pixels PX and a non-light emitting area NLA around the light emitting area LA. The light emitting element OLED is disposed in the light emitting area LA.

[0127] The buffer layer BFL is disposed on the substrate SUB, and the buffer layer BFL is an inorganic layer. The semiconductor pattern is disposed on the buffer layer BFL. The semiconductor pattern includes at least one of polycrystalline silicon, amorphous silicon, and metal oxide.

[0128] The semiconductor pattern may be doped with an N-type dopant or a P-type dopant. The semiconductor pattern includes a high-doping region and a low-doping region. The conductivity of the high-doping region is greater than that of the low-doping region, and the high-doping region serves as a source S and a drain D of the transistor TR. The low-doping region substantially corresponds to an active region A (or channel) of the transistor TR.

[0129] The source S, active area A and drain D of the transistor TR are formed by the semiconductor pattern. The first insulating layer INS1 is disposed on the buffer layer BFL and the semiconductor pattern. The gate G of the transistor TR is disposed on the first insulating layer INS1. The second insulating layer INS2 is disposed on the first insulating layer INS1 and the gate G. The third insulating layer INS3 is disposed on the second insulating layer INS2.

[0130] The connection electrode CNE includes a first connection electrode CNE1 and a second connection electrode CNE2 connecting the transistor TR and the light emitting element OLED. The first connection electrode CNE1 is disposed on the third insulating layer INS3 and connected to the drain electrode D through a first contact hole CH1 formed in the first to third insulating layers INS1 to INS3.

[0131] The fourth insulating layer INS4 is disposed on the third insulating layer INS3 and the first connection electrode CNE1. The fifth insulating layer INS5 is disposed on the fourth insulating layer INS4. The second connection electrode CNE2 is disposed on the fifth insulating layer INS5. The second connection electrode CNE2 is connected to the first connection electrode CNE1 through a second contact hole CH2 formed in the fourth insulating layer INS4 and the fifth insulating layer INS5.

[0132] The sixth insulating layer INS6 may be disposed on the fifth insulating layer INS5 and the second connection electrode CNE2. Layers from the buffer layer BFL to the sixth insulating layer INS6 may be defined as a circuit element layer DP-CL. The first to sixth insulating layers INS1 to INS6 may each be an inorganic layer or an organic layer.

[0133] The first electrode AE ​​is disposed on the sixth insulating layer INS6. The first electrode AE ​​is connected to the second connection electrode CNE2 through a third contact hole CH3 formed in the sixth insulating layer INS6. A pixel defining layer PDL including an opening PX_OP exposing a predetermined portion of the first electrode AE ​​is disposed on the first electrode AE ​​and the sixth insulating layer INS6.

[0134] The hole control layer HCL is disposed on the first electrode AE ​​and the pixel definition layer PDL. The hole control layer HCL includes a hole transport layer and a hole injection layer.

[0135] The light emitting layer EML is disposed on the hole control layer HCL. The light emitting layer EML is disposed in a region corresponding to the opening PX_OP. The light emitting layer EML may include an organic material and / or an inorganic material. The light emitting layer EML generates one of red light, green light, and blue light.

[0136] The electron control layer ECL is disposed on the light emitting layer EML and the hole control layer HCL. The electron control layer ECL includes an electron transport layer and an electron injection layer. The hole control layer HCL and the electron control layer ECL are commonly disposed in the light emitting area LA and the non-light emitting area NLA.

[0137] The second electrode CE is disposed on the electronic control layer ECL. The second electrode CE is commonly disposed throughout the pixels PX. The layer of the light emitting element OLED and the pixel defining film PDL may be defined as a display element layer DP-OLED.

[0138] The thin film encapsulation layer TFE is disposed on the second electrode CE and covers the pixel PX. The thin film encapsulation layer TFE includes a first encapsulation layer EN1 disposed on the second electrode CE, a second encapsulation layer EN2 disposed on the first encapsulation layer EN1, and a third encapsulation layer EN3 disposed on the second encapsulation layer EN2.

[0139] The first encapsulation layer EN1 and the third encapsulation layer EN3 include inorganic insulating layers and protect the pixels PX from moisture and oxygen. The second encapsulation layer EN2 includes an organic insulating layer and protects the pixels PX from foreign substances such as dust particles.

[0140] A first voltage is applied to the first electrode AE ​​through the transistor TR, and a second voltage lower than the first voltage is applied to the second electrode CE. Holes and electrons injected into the emission layer EML recombine to form excitons, and when the excitons transition to a ground state, the light emitting element OLED emits light.

[0141] The touch panel ISP is disposed on the thin film encapsulation layer TFE. The touch panel ISP is directly formed on the upper surface of the thin film encapsulation layer TFE.

[0142] The touch panel ISP includes a base layer BSL, a first conductive pattern CTL1, a second conductive pattern CTL2 disposed on the first conductive pattern CTL1, and an insulating layer TINS. The base layer BSL may be disposed on the thin film encapsulation layer TFE. The base layer BSL includes an inorganic insulating layer. At least one inorganic insulating layer is disposed on the thin film encapsulation layer TFE as the base layer BSL.

[0143] The first conductive pattern CTL1 is disposed on the base layer BSL. The insulating layer TINS ​​is disposed on the base layer BSL and covers the first conductive pattern CTL1. The insulating layer TINS ​​may include an inorganic insulating layer or an organic insulating layer. The second conductive pattern CTL2 is disposed on the insulating layer TINS.

[0144] The first and second conductive patterns CTL1 and CTL2 overlap the non-light emitting area NLA. In addition, the first and second conductive patterns CTL1 and CTL2 are disposed in the non-light emitting area NLA between the light emitting areas LA and have a mesh shape.

[0145] The second conductive pattern CTL2 forms the above-described sensing electrode of the touch panel ISP and the second conductive pattern CTL2 formed in the following description. Figure 8 For example, the second conductive pattern CTL2 in a grid shape is separated in a predetermined area to form a sensing electrode and a dummy electrode. For example, the sensing electrode and the dummy electrode are formed in the same layer, and the sensing electrode and the dummy electrode are electrically floating. In other words, the sensing electrode is electrically disconnected from the dummy electrode.

[0146] In an embodiment, the second conductive pattern CTL2 is formed as follows: Figure 8 However, the embodiments of the present disclosure are not necessarily limited thereto. For example, in an embodiment, the connecting line is formed by a separate conductive pattern.

[0147] A portion of the second conductive pattern CTL2 is connected to the first conductive pattern CTL1. The first conductive pattern CTL1 forms a structure to be described below. Fig.15 , which connects a portion of the second conductive pattern CTL2. For example, the first conductive pattern CTL1 connects a portion of the separated second conductive pattern CTL2 in the form of a bridge. However, the first conductive pattern CTL1 does not necessarily have to be formed under the second conductive pattern CTL2.

[0148] The anti-reflection layer RPL is disposed on the second conductive pattern CTL2. The anti-reflection layer RPL includes a black matrix BM, a plurality of color filters CF, and a planarization insulating layer PINS. The black matrix BM overlaps the non-emission area NLA, and the color filters CF overlap the emission areas LA, respectively.

[0149] The black matrix BM is disposed on the insulating layer TINS ​​and covers the second conductive pattern CTL2. The black matrix BM includes an opening B_OP overlapping the light emitting area LA and the opening PX_OP. The black matrix BM absorbs and blocks light. The width of the opening B_OP is greater than the width of the opening PX_OP. In an embodiment, the anti-reflection layer RPL replaces the black matrix BM by overlapping different types of color filters CF.

[0150] The color filters CF are disposed on the insulating layer TINS ​​and the black matrix BM. The color filters CF are disposed in the openings B_OP, respectively. The planarization insulating layer PINS is disposed on the color filters CF. The planarization insulating layer PINS provides a flat upper surface. The planarization insulating layer PINS includes an organic insulating layer.

[0151] When external light propagating toward the display panel DP is reflected from the display panel DP back to an external user, the user may visually recognize the external light like a mirror. In order to prevent this phenomenon, the anti-reflection layer RPL includes a plurality of color filters CF that display the same color as the pixels PX of the display panel DP. The color filters CF filter the external light into the same color as the pixels PX. Therefore, the external light is not visually recognized by the user.

[0152] Figure 8 yes Figure 4 a top plan view of a portion of an electronic panel, and Fig. 9 Show Figure 8 Example of the switch section.

[0153] For better understanding and ease of illustration, Fig. 9 Only the first sensing electrode SE1 , the receiver 200 , the transmitter 100 , and the switching part 300 are shown.

[0154] refer to Figure 7 and Figure 8 In an embodiment, the electronic panel EP includes a touch panel ISP and a touch panel driver 10 driving the touch panel ISP.

[0155] The touch panel ISP includes a base layer BSL, sensing electrodes SE1 and SE2, dummy electrodes DE1 and DE2, lines CL1 and CL2 electrically connected to the sensing electrodes SE1 and SE2, respectively, pads PD2 and PD3 electrically connecting the lines CL1 and CL2 to the touch panel driver 10, respectively, and a connection line DCL connecting the dummy electrodes DE1 and DE2.

[0156] The active area AA and the peripheral area NAA adjacent to the active area AA are defined in the base layer BSL. When viewed in a plan view, the active area AA is aligned with the display area DA (see FIG. 1 ). Figure 6 ) overlaps, and the peripheral area NAA overlaps with the non-display area NDA (see Figure 6 )overlapping.

[0157] The sensing electrodes SE1 and SE2 are disposed in the active area AA, and the second pad PD2 and the third pad PD3 are disposed in the peripheral area NAA. When viewed in a plan view, the second pad PD2 and the third pad PD3 are adjacent to the lower end of the touch panel ISP. However, the embodiments of the present disclosure are not necessarily limited to the above-mentioned positions of the second pad PD2 and the third pad PD3.

[0158] The first sensing electrode SE1 and the first dummy electrode DE1 extend in the first direction DR1 and are spaced apart in the second direction DR2. The first sensing electrode SE1 is connected to the second pad PD2 through the first line CL1. The second pad PD2 electrically connects the first sensing electrode SE1 to the touch panel driver 10.

[0159] The second sensing electrode SE2 and the second dummy electrode DE2 extend in the second direction DR2 and are spaced apart in the first direction DR1. The second sensing electrode SE2 is connected to the third pad PD3 through the second line CL2. The third pad PD3 electrically connects the second sensing electrode SE2 to the touch panel driver 10.

[0160] The first dummy electrodes DE1 are connected to each other through the connection line DCL, and at least two of the first dummy electrodes DE1 and the connection line DCL surround each first sensing electrode SE1. The connection line DCL is not connected to the first line CL1 or the second line CL2. For example, the first dummy electrode DE1 forms a coil surrounding the first sensing electrode SE1. Therefore, an eddy current may be formed in the first dummy electrode DE1 by a second object approaching the first sensing electrode SE1.

[0161] The first dummy electrode DE1 and the first sensing electrode SE1 are electrically floating. Therefore, a capacitor may be formed between the first dummy electrode DE1 and the first sensing electrode SE1. Fig.12 The 2-1st touch sensing signal shown in is generated in the first sensing electrode SE1 due to the eddy current flowing through the first dummy electrode DE1.

[0162] The second dummy electrodes DE2 are connected to each other through the connection line DCL, and at least two of the second dummy electrodes DE2 and the connection line DCL surround each second sensing electrode SE2. For example, the second dummy electrode DE2 forms a coil surrounding the second sensing electrode SE2. Therefore, an eddy current may be formed in the second dummy electrode DE2 by a second object approaching the second sensing electrode SE2.

[0163] The second dummy electrode DE2 and the second sensing electrode SE2 are electrically floating. Therefore, a capacitor may be formed between the second dummy electrode DE2 and the second sensing electrode SE2. Fig.13 The 2-2 th touch sensing signal shown in is generated in the second sensing electrode SE2 due to the eddy current flowing through the second dummy electrode DE2.

[0164] although Figure 8The second dummy electrode DE2 and the second sensing electrode SE2 are shown to be disposed on the first dummy electrode DE1 and the first sensing electrode SE1, but the embodiments of the present disclosure are not necessarily limited thereto. For example, as will be described below Fig.15 As shown in FIG. 1 , the first sensing electrode SE1 and the second sensing electrode SE2 and the first dummy electrode DE1 and the second dummy electrode DE2 may be disposed on the same layer. Figure 8 In the region where one of the first sensing electrode SE1 and the second sensing electrode SE2 crosses the other electrode, one of the first sensing electrode SE1 and the second sensing electrode SE2 is connected to the other electrode by Fig.15 For example, in Figure 8 In the region where one of the first dummy electrode DE1 and the second dummy electrode DE2 crosses the other electrode, one of the first dummy electrode DE1 and the second dummy electrode DE2 is formed by Fig.15 For example, the connection electrode is formed of the first conductive pattern CTL1. However, the embodiments of the present disclosure are not necessarily limited to the above-described method in which each electrode is connected in the intersection region.

[0165] refer to Figure 8 and Fig. 9 In an embodiment, the touch panel driver 10 includes a transmitter 100, a receiver 200, a switch part 300, and a sensing controller 400 that controls the transmitter 100, the receiver 200, and the switch part 300. In an embodiment, the various components of the touch panel driver 10 are formed as circuits. However, the embodiments of the present disclosure are not necessarily limited thereto, and in other embodiments of the present disclosure, the touch panel driver 10 may be implemented in the form of hardware, software, firmware, or an application specific integrated circuit (ASIC).

[0166] The transmitter 100 transmits a signal to the touch panel ISP. The receiver 200 receives a signal from the touch panel ISP. A detailed description of these will be provided below.

[0167] The switch part 300 selectively connects the first sensing electrode SE1 to the transmitter 100 or the receiver 200. For example, the switch part 300 includes a switch that connects the corresponding first sensing electrode SE1 to the transmitter 100 or the receiver 200. Each switch is controlled by the sensing controller 400.

[0168] Fig.10 Show Figure 8 An example of a touch panel driver driving a touch panel, Fig.11 Show Figure 8 An example in which a touch panel driver drives the touch panel in a first touch period, and Fig.12 and Fig.13 Show Figure 8 An example in which a touch panel driver drives the touch panel in the second touch period.

[0169] For better understanding and ease of illustration, Fig.11 The dummy electrodes DE1 and DE2 are omitted; Fig.12 The second sensing electrode SE2, the second dummy electrode DE2 and the transmitter 100 are omitted; and Fig.13 The first sensing electrode SE1, the first dummy electrode DE1, the transmitter 100, and the switch part 300 are omitted.

[0170] exist Figures 11 to 13 In the embodiment, the input signal and the output signal of each of the transmitter 100 and the receiver 200 are shown by the same reference numerals, but are not necessarily the same. For example, each of the transmitter 100 and the receiver 200 outputs the received signal at a different frequency (such as an output frequency or an input frequency).

[0171] Fig.12 It is shown that the coordinates (such as x-axis coordinates) of the second object OBJ2 in the second direction DR2 are detected in the second touch period TP2, and Fig.13 It is shown that the coordinates (such as the y-axis coordinates) of the second object OBJ2 in the first direction DR1 are detected in the second touch period TP2.

[0172] refer to Figures 10 to 13 In the embodiment, the touch panel ISP is provided by the touch panel driver 10 (refer to Figure 8 ) is driven in a time division manner and includes a first touch period TP1 and a second touch period TP2. The touch panel driver 10 (see Figure 8 ) The coordinates of the first object OBJ1 are detected in a first touch period TP1 of one frame FR, and the coordinates of the second object OBJ2 are detected in a second touch period TP2 of one frame FR. The first touch period TP1 and the second touch period TP2 may be repeated.

[0173] In an embodiment, the frequency of the first touch period TP1 is less than the frequency of the second touch period TP2. For example, in one frame FR, the first touch period TP1 is repeated once, and the second touch period TP2 is repeated four times. For example, the frequency of the first touch period TP1 is 120 Hz, and the frequency of the second touch period TP2 is 480 Hz.

[0174] refer to Fig.10 and Fig.11, the first sensing electrode SE1 and the second sensing electrode SE2 are driven in the first touch period TP1 to detect the first input from the first object OBJ1. For example, in the first touch period TP1, the touch panel ISP is driven in a mutual capacitance method. For example, the touch panel driver 10 (see Figure 8 ) transmits the touch drive signal TDS to the first sensing electrode SE1 during the first touch period TP1, and receives the first touch sensing signal TSS1 from the second sensing electrode SE2. Capacitance is formed between the first sensing electrode SE1 and the second sensing electrode SE2. When the first input is received by the touch panel ISP, the capacitance may change. The touch panel driver 10 (see Figure 8 ) detects the first input based on the change in capacitance. For example, the touch panel driver 10 (see Figure 8 ) detects the coordinates of the first object OBJ1 based on the first touch sensing signal TSS1.

[0175] For example, the sensing controller 400 outputs the third control signal CON3 controlling the switching part 300 to the switching part 300. In the first touch period TP1, the switching part 300 connects the first sensing electrode SE1 to the transmitter 100 based on the third control signal CON3.

[0176] For example, the sensing controller 400 outputs the first control signal CON1 including the output frequency and the touch drive signal TDS to the transmitter 100. The transmitter 100 transmits the touch drive signal TDS to each first sensing electrode SE1 at the output frequency. However, the output frequency of each of the first sensing electrodes SE1 does not necessarily have to be the same.

[0177] For example, the sensing controller 400 outputs the second control signal CON2 including the input frequency to the receiver 200. The receiver 200 receives the first touch sensing signal TSS1 from the second sensing electrode SE2 at the input frequency. The receiver 200 transmits the first touch sensing signal TSS1 received at the input frequency to the sensing controller 400.

[0178] refer to Fig.10 and Fig.12 In the embodiment, in the second touch period TP2, the second object OBJ2 generates an eddy current EC in the first dummy electrode DE1. For example, when the second object OBJ2 is an input device PN that generates a magnetic field and the second object OBJ2 is close to the touch panel ISP, the eddy current EC is generated. The first sensing electrode SE1 forms a capacitor with the first dummy electrode DE1. Due to the eddy current EC generated in the first dummy electrode DE1, the 2-1st touch sensing signal TSS2-1 is generated in the first sensing electrode SE1. The touch panel driver 10 (see Figure 8) detects the second input based on the 2-1st touch sensing signal TSS2-1. For example, the touch panel driver 10 (see Figure 8 ) detects the coordinates of the second object OBJ2 in the second direction DR2 based on the 2-1 th touch sensing signal TSS2-1.

[0179] For example, the sensing controller 400 outputs the third control signal CON3 controlling the switching part 300 to the switching part 300. In the second touch period TP2, the switching part 300 connects the first sensing electrode SE1 to the receiver 200 based on the third control signal CON3.

[0180] For example, the sensing controller 400 outputs the second control signal CON2 including the input frequency to the receiver 200. The receiver 200 receives the 2-1st touch sensing signal TSS2-1 from the first sensing electrode SE1 at the input frequency. The receiver 200 transmits the 2-1st touch sensing signal TSS2-1 received at the input frequency to the sensing controller 400.

[0181] In an embodiment, the input frequency in the second touch period TP2 matches the generation frequency of the magnetic field of the second object OBJ2. However, embodiments of the present disclosure are not necessarily limited thereto.

[0182] refer to Fig.10 and Fig.13 In the embodiment, in the second touch period TP2, the second object OBJ2 generates an eddy current EC in the second dummy electrode DE2. For example, when the second object OBJ2 is an input device PN that generates a magnetic field and the second object OBJ2 is close to the touch panel ISP, the eddy current EC is generated. The second sensing electrode SE2 forms a capacitor with the second dummy electrode DE2. Due to the eddy current EC generated in the second dummy electrode DE2, the 2-2 touch sensing signal TSS2-2 is generated in the second sensing electrode SE2. The touch panel driver 10 (see Figure 8 ) detects the second input based on the 2-2 touch sensing signal TSS2-2. For example, the touch panel driver 10 (see Figure 8 ) detects the coordinates of the second object OBJ2 in the first direction DR1 based on the 2-2 th touch sensing signal TSS2-2.

[0183] For example, the sensing controller 400 outputs the second control signal CON2 including the input frequency to the receiver 200. The receiver 200 receives the 2-2nd touch sensing signal TSS2-2 from the second sensing electrode SE2 at the input frequency. The receiver 200 transmits the 2-2nd touch sensing signal TSS2-2 received at the input frequency to the sensing controller 400.

[0184] In an embodiment, the input frequency in the second touch period TP2 matches the generation frequency of the magnetic field of the second object OBJ2. However, embodiments of the present disclosure are not necessarily limited thereto.

[0185] Fig.14 Show Figure 8 An example of a sensing electrode and a dummy electrode, and Fig.15 Show Fig.14 An enlarged view of the first area A1.

[0186] refer to Figure 8 , Fig.14 and Fig.15 In the embodiment, the sensing electrodes SE1 and SE2 and the dummy electrodes DE1 and DE2 are separated in a predetermined area by a second conductive pattern CTL2 (see Figure 7 ) is formed. For example, Fig.15 As shown in FIG. 1 , the first sensing electrode SE1 , the second sensing electrode SE2 , the first dummy electrode DE1 , and the second dummy electrode DE2 are electrically floated from each other due to a predetermined area.

[0187] The first conductive pattern CTL1 (see Figure 7 ) forms a connection electrode BCE connecting a portion of the second conductive pattern CTL2. For example, the second sensing electrode SE2 extends in the second direction DR2 while being electrically floated with the first sensing electrode SE1 and the first dummy electrode DE1 through the connection electrode BCE. For example, the second dummy electrode DE2 extends in the second direction DR2 while being electrically floated with the first sensing electrode SE1 and the first dummy electrode DE1 through the connection electrode BCE.

[0188] The first sensing electrode SE1 includes a first first sub-sensing electrode SE1_S1 and a first second sub-sensing electrode SE1_S2. At least one first dummy electrode DE1 is disposed between the first first sub-sensing electrode SE1_S1 and the first second sub-sensing electrode SE1_S2.

[0189] The second sensing electrode SE2 includes a second first sub-sensing electrode SE2_S1 and a second second sub-sensing electrode SE2_S2. At least one second dummy electrode DE2 is disposed between the second first sub-sensing electrode SE2_S1 and the second second sub-sensing electrode SE2_S2. The first first sub-sensing electrode SE1_S1 and the second first sub-sensing electrode SE2_S1 may be referred to as first sub-sensing electrodes, and the first second sub-sensing electrode SE1_S2 and the second second sub-sensing electrode SE2_S2 may be referred to as second sub-sensing electrodes.

[0190] Fig.16 Graphics Figure 8 Examples of sensing electrodes and dummy electrodes.

[0191] refer to Figure 6 , Figure 8 and Fig.16 In the embodiment, the pixel PX has various structures. For example, Fig.16 As shown in FIG. 1 , when the pixel PX has a diamond pixel (DIAMOND ) structure, the sensing electrodes SE1 and SE2 avoid the diamond-shaped light-emitting area. However, the embodiments of the present disclosure are not necessarily limited to the above structure of the pixel PX, and the shapes of the sensing electrodes SE1 and SE2 and the dummy electrodes DE1 and DE2 vary according to the structure of the pixel PX.

[0192] Fig.17 Show Figure 1 An example of an input device.

[0193] refer to Fig.10 , Fig.12 , Fig.13 and Fig.17 In an embodiment, a second input from the input device PN is detected in the second touch period TP2. The input device PN generates an eddy current in at least one of the dummy electrodes DE1 and DE2.

[0194] The input device PN includes a housing PNH, a pen tip PNT, a button portion BUT, a power supply portion PN100, an input device driving portion PN200, a communication portion PN300, a magnetic field generating portion PN400, a pressure measuring portion PN500 and a wireless communication portion PN600.

[0195] The housing PNH has a pen shape. An accommodation space is formed inside the housing PNH. A power supply part PN100, an input device driving part PN200, a communication part PN300, a magnetic field generating part PN400, a pressure measuring part PN500, and a wireless communication part PN600 are accommodated in the accommodation space inside the housing PNH.

[0196] The pen tip PNT is provided at the end of the housing PNH. For example, a part of the pen tip PNT is exposed to the outside by the housing PNH, and the rest of the pen tip PNT is inserted into the housing PNH.

[0197] The power supply part PN100 supplies power PW to the input device driving part PN200. The power supply part PN100 includes a battery or a large-capacity capacitor.

[0198] The button portion BUT blocks the power PW supplied to the input device driving portion PN200. For example, a user may turn on / off the input device PN through the button portion BUT.

[0199] The input device driving part PN200 generates a magnetic field generating signal MGS. The magnetic field generating part PN400 generates a magnetic field MF corresponding to the magnetic field generating signal MGS. The input device driving part PN200 adjusts the generating frequency and intensity of the magnetic field MF through the magnetic field generating signal MGS.

[0200] For example, the magnetic field generating part PN400 includes a coil. For example, the magnetic field generating signal MGS is transmitted to the coil to generate a magnetic field MF, and the generated magnetic field MF is output from the input device PN through the pen tip PNT. For example, when the input device PN approaches the sensing electrodes SE1 and SE2, eddy currents are formed in the dummy electrodes DE1 and DE2. For example, when the input device PN is away from the sensing electrodes SE1 and SE2 surrounded by the dummy electrodes DE1 and DE2 in which the eddy currents are formed, eddy currents are generated in the coil, and the power supply part PN100 is charged by the eddy currents.

[0201] In an embodiment, the input device PN further includes a pressure measuring part PN500 measuring the pressure PS of the input device PN, and the input device driving part PN200 generates a magnetic field generating signal MGS based on the pressure PS of the input device PN.

[0202] For example, the input device driving part PN200 adjusts the magnetic field generating signal MGS according to the pressure PS of the input device PN. That is, the 2-1st touch sensing signal TSS2-1 and the 2-2nd touch sensing signal TSS2-2 vary according to the pressure PS of the input device PN. Therefore, when the second input is detected, the display device DD (see Figure 1 ) detects not only the coordinates of the second input, but also the intensity of the second input.

[0203] The communication part PN300 transmits the received signal to at least one of the components of the input device PN. For example, the communication part PN300 transmits the magnetic field generation signal MGS to the magnetic field generation part PN400. Fig.17 In the embodiment, the input signal and output signal of the communication part PN300 are indicated by the same reference numerals, but they are not necessarily the same. For example, the communication part PN300 converts the magnetic field generation signal MGS into a current that generates a magnetic field MF of a specific frequency and / or a specific strength when the magnetic field generation signal MGS flows through the coil.

[0204] The wireless communication part PN600 performs wireless communication with an external device. For example, the wireless communication part PN600 performs Bluetooth communication with the external device. For example, the wireless communication part PN600 transmits information about the control of the magnetic field MF to the display device DD (see Figure 1 ) or with a display device DD (see Figure 1) host system for communication. For example, the wireless communication part PN600 transmits whether the power PW is supplied to the input device driving part PN200 to the display device DD (see Figure 1 ) or with a display device DD (see Figure 1 ) host system for communication.

[0205] In the embodiment, the input device PN further includes a pressure measuring portion PN500 that measures the pressure PS of the input device PN, and the pressure PS of the input device PN is transmitted to the display device DD (see Figure 1 For example, the wireless communication part PN600 transmits the pressure PS of the input device PN to the display device DD (see Figure 1 ). Display device DD (see Figure 1 ) directly compares the pressure PS of the input device PN with the detected second input. In this case, the magnetic field generation signal MGS generated by the input device driving part PN200 is not affected by the pressure PS of the input device PN. In an embodiment, the input device driving part PN200 provides the pressure PS of the input device PN to the display device DD (see Figure 1 For example, the input device driving part PN200 provides the pressure PS of the input device PN to the display device DD through the communication part PN300 and the wireless communication part PN600 (see Figure 1 ) or with a display device DD (see Figure 1 ) host system for communication. In the embodiment, the pressure measuring part PN500 provides the pressure PS of the input device PN to the display device DD through the communication part PN300 and the wireless communication part PN600 (see Figure 1 ) or with a display device DD (see Figure 1 ) communicates with the host system without going through the input device driving part PN200.

[0206] Fig.18 An example of driving a touch panel by a touch panel driver of a touch system according to an embodiment of the present disclosure is shown, and Fig.19 Show Fig.18 An example of an input device for a touch system.

[0207] In addition to the input device PN and the first and second sub touch periods STP1 and STP2, the touch system according to the embodiment is different from the touch system according to the embodiment. Figure 1 The touch systems of the embodiments are substantially the same, and thus the same drawing numbers and reference numerals are used for the same or similar components, and redundant descriptions are omitted.

[0208] exist Fig.19In the embodiment, the input signal and the output signal of each of the receiving part PN810 and the transmitting part PN820 are indicated by the same reference numerals, but they are not necessarily the same. For example, each of the receiving part PN810 and the transmitting part PN820 can output the received signal at different frequencies.

[0209] exist Fig.19 In the embodiment, the input signal and the output signal of the communication part PN300 are indicated by the same reference numerals, but they are not necessarily the same. For example, the communication part PN300 converts the magnetic field generation signal MGS into a current that generates a magnetic field MF of a specific frequency and / or a specific strength when the magnetic field generation signal MGS flows through the coil. For example, the communication part PN300 converts the signal ITCS corresponding to the touch signal into a signal that can be recognized by the input device driving part PN200.

[0210] refer to Figure 8 , Fig.18 and Fig.19 In the embodiment, the touch panel ISP is driven by the touch panel driver 10 in a time-division manner in the first touch period TP1 and the second touch period TP2. The touch panel driver 10 detects the first object OBJ1 in the first touch period TP1 of one frame FR (see Fig.11 ) and detects the coordinates of the second object OBJ2 (see FIG. 1 ) such as the input device PN in the second touch period TP2 of one frame FR. Fig.12 The first touch period TP1 and the second touch period TP2 are repeated.

[0211] The second touch period TP2 includes a first sub-touch period STP1 and a second sub-touch period STP2. In the first sub-touch period STP1, the touch panel driver 10 detects whether the input device PN touches the touch panel ISP (or inputs through the touch panel ISP). When the input device PN touches the touch panel ISP (or inputs through the touch panel ISP) in the first sub-touch period STP1, the input device PN generates a magnetic field MF in the second sub-touch period STP2.

[0212] The input device PN includes a shell PNH, a pen tip PNT, a button part BUT, a power supply part PN100, an input device driving part PN200, a communication part PN300, a magnetic field generating part PN400, a pressure measuring part PN500, a switch part PN700, a receiving part PN810, a transmitting part PN820 and a capacitance forming part PN900.

[0213] Already referenced Fig.17Descriptions of the housing PNH, pen tip PNT, button portion BUT, power supply portion PN100, input device driving portion PN200, communication portion PN300, magnetic field generating portion PN400 and pressure measuring portion PN500 are provided, so redundant descriptions thereof will be omitted.

[0214] When the input device PN approaches the touch panel ISP, the capacitance forming part PN900 forms a capacitance with the first sensing electrode SE1. For example, the capacitance forming part PN900 includes a conductive material. For example, the capacitance forming part PN900 includes an electrode.

[0215] The touch panel driver 10 outputs a touch signal to the first sensing electrode SE1 in the first sub touch period STP1. The receiving part PN810 receives a signal ITCS corresponding to the touch signal generated by the capacitance between the capacitance forming part PN900 and the first sensing electrode SE1.

[0216] The switch portion PN700 selectively connects the input device driving portion PN200 to the receiving portion PN810 or the transmitting portion PN820. The switch portion PN700 connects the input device driving portion PN200 to transmit or receive a signal through the communication portion PN300.

[0217] The receiving part PN810 transmits the received signal to the input device driving part PN200 through the communication part PN300. The input device driving part PN200 detects whether the input device PN touches the touch panel ISP (or inputs through the touch panel ISP) based on the signal ITCS corresponding to the touch signal.

[0218] The input device driving part PN200 controls the switching part PN700. For example, the input device driving part PN200 transmits a control signal for controlling the switching part PN700 to the switching part PN700.

[0219] When the input device PN touches the touch panel ISP (or input is performed through the touch panel ISP), the input device driving part PN200 transmits the magnetic field generating signal MGS to the magnetic field generating part PN400. For example, when the input device driving part PN200 receives the signal ITCS corresponding to the touch signal, the input device driving part PN200 controls the switch part PN700 so that the switch part PN700 connects the input device driving part PN200 to the transmission part PN820. In addition, the input device driving part PN200 transmits the magnetic field generating signal MGS to the magnetic field generating part PN400 through the communication part PN300 and the transmission part PN820.

[0220] When the input device PN touches the touch panel ISP (or inputs through the touch panel ISP), the operation in the second sub touch period STP2 is the same as the reference period STP2. Fig.12 and Fig.13 The operations in the second touch period TP2 described are substantially the same, and thus redundant descriptions will be omitted.

[0221] When the input device PN does not touch the touch panel ISP (or does not input through the touch panel ISP), the input device driving part PN200 does not transmit the magnetic field generation signal MGS to the magnetic field generating part PN400. For example, when the input device driving part PN200 does not receive the signal ITCS corresponding to the touch signal in the first sub touch period STP1, the input device driving part PN200 is connected to the receiving part PN810 in the second sub touch period STP2.

[0222] Embodiments of the present disclosure may be incorporated into a display device and an electronic device including the display device. For example, embodiments of the present disclosure may be incorporated into a digital TV, a 3D TV, a mobile phone, a smart phone, a VR device, a PC (such as a tablet computer and a laptop computer), a home electronic device, a PDA, a PMP, a digital camera, a music player, a portable game console, a navigation system, etc.

[0223] While the embodiments of the present disclosure have been described in connection with what are presently considered to be practical embodiments, it will be understood that the embodiments are not limited to the disclosed embodiments, but on the contrary are intended to cover various modifications and equivalents included within the spirit and scope of the claims.

Claims

1. A display device, comprising: A touch panel comprising first dummy electrodes extending in a first direction and connected to each other, second dummy electrodes extending in a second direction crossing the first direction and connected to each other, first sensing electrodes disposed between the first dummy electrodes and electrically floating with the first dummy electrodes, and second sensing electrodes disposed between the second dummy electrodes and electrically floating with the second dummy electrodes; and A touch panel driver drives the touch panel.

2. The display device according to claim 1, wherein: The first dummy electrodes are connected to each other through connection lines, At least two of the first dummy electrodes and the connecting line surround the first sensing electrode, The second dummy electrodes are connected to each other through the connection line, and At least two of the second dummy electrodes and the connecting line surround the second sensing electrode.

3. The display device according to claim 1, wherein: The first dummy electrode and the first sensing electrode are formed on the same layer.

4. The display device according to claim 3, wherein: The first dummy electrode, the second dummy electrode, the first sensing electrode, and the second sensing electrode are formed on the same layer.

5. The display device according to claim 1, wherein: The first sensing electrode includes a first sub-sensing electrode and a second sub-sensing electrode, and At least one of the first dummy electrodes is disposed between the first sub-sensing electrode and the second sub-sensing electrode.

6. The display device according to claim 1, wherein: The first dummy electrode and the second dummy electrode are connected to each other.

7. The display device according to any one of claims 1 to 6, wherein: The touch panel driver detects coordinates of a first object in a first touch period of one frame, and detects coordinates of a second object in a second touch period of the one frame.

8. The display device according to claim 7, wherein: The touch panel driver transmits a touch driving signal to the first sensing electrode in the first touch period, receives a first touch sensing signal from the second sensing electrode in the first touch period, and detects the coordinates of the first object based on the first touch sensing signal.

9. The display device according to claim 7, wherein: The touch panel driver receives a 2-1 touch sensing signal from the first sensing electrode in the second touch period, receives a 2-2 touch sensing signal from the second sensing electrode in the second touch period, and detects the coordinates of the second object based on the 2-1 touch sensing signal and the 2-2 touch sensing signal.

10. The display device according to claim 9, wherein: The touch panel driver detects the coordinates of the second object in the second direction based on the 2-1st touch sensing signal, and detects the coordinates of the second object in the first direction based on the 2-2nd touch sensing signal.

11. The display device according to claim 7, wherein: The second object generates an eddy current in at least one of the first dummy electrode and the second dummy electrode.

12. The display device according to claim 7, wherein: A frequency of the first touch period is smaller than a frequency of the second touch period.

13. The display device according to claim 7, wherein: The touch panel driver comprises: a receiver, receiving a signal from the touch panel; A transmitter, transmitting a signal to the touch panel; a switch portion that selectively connects the first sensing electrode to the receiver or the transmitter; and A sensing controller controls the receiver, the transmitter and the switch part.

14. The display device according to claim 13, wherein: The switch portion connects the first sensing electrode to the transmitter in the first touch period, and connects the first sensing electrode to the receiver in the second touch period.

15. The display device according to claim 7, wherein: The second touch period includes a first sub-touch period and a second sub-touch period, and The touch panel driver transmits a touch signal to the first sensing electrode in the first sub-touch period, receives a 2-1 touch sensing signal from the first sensing electrode in the second sub-touch period, receives a 2-2 touch sensing signal from the second sensing electrode in the second sub-touch period, and detects the coordinates of the second object based on the 2-1 touch sensing signal and the 2-2 touch sensing signal.

16. A touch system comprising: Display device; and input device, generating eddy currents in the display device, Wherein, the display device comprises: A touch panel comprising first dummy electrodes extending in a first direction and connected to each other, second dummy electrodes extending in a second direction crossing the first direction and connected to each other, first sensing electrodes disposed between the first dummy electrodes and electrically floating with the first dummy electrodes, and second sensing electrodes disposed between the second dummy electrodes and electrically floating with the second dummy electrodes; and A touch panel driver drives the touch panel.

17. The touch system according to claim 16, wherein: The input device comprises: An input device driving part generates a magnetic field generating signal; a power supply section that supplies power to the input device driving section; and The magnetic field generating section generates a magnetic field corresponding to the magnetic field generating signal.

18. The touch system according to claim 17, wherein: The input device driving section generates the magnetic field generation signal based on a pressure of the input device.

19. The touch system according to claim 18, wherein: The input device further comprises: A pressure measuring section measures the pressure of the input device.

20. The touch system according to claim 18, wherein: The input device provides the pressure of the input device to the display device.

21. The touch system according to claim 17, wherein: The input device indicates to the display device whether power is supplied to the input device driving section.

22. The touch system according to claim 17, wherein: The input device further comprises: The wireless communication section performs wireless communication.

23. The touch system according to claim 17, wherein: A touch period during which the coordinates of the input device are detected includes a first sub-touch period and a second sub-touch period, and The touch panel driver transmits a touch signal to the first sensing electrode in the first sub-touch period, receives a 2-1st touch sensing signal from the first sensing electrode in the second sub-touch period, receives a 2-2nd touch sensing signal from the second sensing electrode in the second sub-touch period, and detects the coordinates of the input device based on the 2-1st touch sensing signal and the 2-2nd touch sensing signal.

24. The touch system according to claim 23, wherein: The input device comprises: A receiving part, receiving a signal corresponding to the touch signal; a transmitting section that transmits the magnetic field generating signal to the magnetic field generating section; and A switch section selectively connects the input device driving section to the receiving section or the transmitting section.

25. The touch system according to claim 24, wherein: The input device driving section controls the switch section, and When the input device receives the signal corresponding to the touch signal, the switch portion connects the input device driving portion to the transmission portion.

26. A touch panel comprising: first dummy electrodes extending in a first direction and connected to each other; second dummy electrodes extending in a second direction crossing the first direction and connected to each other; a first sensing electrode disposed between the first dummy electrodes and electrically floating with the first dummy electrodes; a second sensing electrode disposed between the second dummy electrodes and electrically floating with the second dummy electrodes; and A touch panel driver detects coordinates of a first object in a first touch period of one frame and detects coordinates of a second object in a second touch period of the one frame.

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