Sensing panel and display device

Abstract

The present disclosure relates to a sensing panel and a display device, the sensing panel comprising: a sensing substrate; a first group of fingerprint sensing pixels disposed on a first region of the sensing substrate and connected to a plurality of fingerprint scanning lines and a plurality of first fingerprint receiving lines; and a first pen sensing pixel disposed on a second region of the sensing substrate and connected to the pen scanning lines, the first pen transmission lines, and the first pen receiving lines. The first pen sensing pixel comprises a first sensing coil surrounding the first region of the sensing substrate on which the first group of fingerprint sensing pixels is disposed. A portion of the first sensing coil is directly adjacent to a first fingerprint sensing pixel in the first group of fingerprint sensing pixels.

Description

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This patent application claims priority from Korean Patent Application No. 10-2019-0104943, filed on August 27, 2019, which is hereby incorporated by reference herein in its entirety. Technical Field

[0003] The present invention relates to a display device, and more particularly, to a display device having a sensing panel for sensing external input. Background Art

[0004] Multimedia display devices such as televisions, mobile phones, tablet computers, navigation units, and gaming units include a display device to display images. The display device includes an input sensing panel that provides a touch-based input method that allows users to easily and intuitively input information or commands in addition to conventional input methods such as buttons, keyboards, and mice.

[0005] In recent years, a method of using a fingerprint as one of biometric information has been proposed as a user authentication method for online banking, product purchase, and security, and demand for a touch display device having a fingerprint recognition function is growing.

[0006] Meanwhile, the electronic pen is used for users who are familiar with information input through a writing instrument or fine touch input for a specific application (for example, an application for sketching or drawing).

[0007] Therefore, the display device needs to detect various inputs, such as a touch input by a user's hand, a fingerprint input, and an electronic pen input. Summary of the Invention

[0008] The present disclosure provides a sensing panel including fingerprint sensing pixels and electronic pen sensing pixels.

[0009] The present disclosure provides a display device capable of sensing a fingerprint and an input through an electronic pen located on a front surface thereof.

[0010] According to an exemplary embodiment of the present invention, a sensing panel includes: a sensing substrate; a first group of fingerprint sensing pixels, the first group of fingerprint sensing pixels being arranged in a first area of ​​the sensing substrate and connected to a plurality of fingerprint scanning lines and a plurality of first fingerprint receiving lines; and a first pen sensing pixel, the first pen sensing pixel being arranged in a second area of ​​the sensing substrate and connected to the pen scanning lines, the first pen transmission lines, and the first pen receiving lines. The first pen sensing pixel includes a first sensing coil, the first sensing coil surrounding the first area of ​​the sensing substrate on which the first group of fingerprint sensing pixels is arranged. A portion of the first sensing coil is adjacent to a first fingerprint sensing pixel in the first group of fingerprint sensing pixels.

[0011] In an exemplary embodiment of the present invention, the first group of fingerprint sensing pixels includes x fingerprint sensing pixels arranged in a first direction and y fingerprint sensing pixels arranged in a second direction different from the first direction, where x is a positive integer and y is a positive integer.

[0012] In an exemplary embodiment according to the present invention, the sensing panel further includes: a second group of fingerprint sensing pixels, which are arranged on the third area of ​​the sensing substrate and connected to the multiple fingerprint scanning lines and the multiple second fingerprint receiving lines; and second pen sensing pixels, which are arranged on the fourth area of ​​the sensing substrate and connected to the pen scanning lines, the second pen transmission lines and the second pen receiving lines, wherein the second pen sensing pixels include a second sensing coil, which surrounds the third area of ​​the sensing substrate on which the second group of fingerprint sensing pixels is arranged, and a portion of the second sensing coil is directly adjacent to the second fingerprint sensing pixel in the second group of fingerprint sensing pixels.

[0013] In an exemplary embodiment according to the present invention, the first sensing coil is provided in a spiral shape, and the first region of the sensing substrate is provided within the spiral-shaped first sensing coil.

[0014] In an exemplary embodiment according to the present invention, the first area of ​​the sensing substrate on which the first group of fingerprint sensing pixels are disposed is configured to receive external light.

[0015] In an exemplary embodiment according to the present invention, one end of the first sensing coil is electrically connected to a ground voltage terminal, and the other end of the first sensing coil is electrically connected to the first pen sensing pixel.

[0016] In an exemplary embodiment according to the present invention, the sensing panel further includes a sensing scan driving circuit configured to apply a sensing scan signal to the plurality of fingerprint scan lines and the pen scan lines.

[0017] In an exemplary embodiment according to the present invention, the sensing panel further includes: a fingerprint scanning drive circuit; and a pen scanning drive circuit, wherein the plurality of fingerprint scanning lines are connected to the first group of fingerprint sensing pixels and the second group of fingerprint sensing pixels, the pen scanning lines are connected to the first pen sensing pixels and the second pen sensing pixels, the fingerprint scanning drive circuit is configured to apply a plurality of fingerprint scanning signals to the plurality of fingerprint scanning lines, and the pen scanning drive circuit is configured to apply a pen scanning signal to the pen scanning lines.

[0018] In an exemplary embodiment according to the present invention, the sensing substrate includes: a sensing area, the sensing area including the first area on which the first group of fingerprint sensing pixels are arranged and the second area on which the first pen sensing pixels are arranged, wherein the fingerprint scanning drive circuit is arranged on an area of ​​the sensing substrate adjacent to a first side of the sensing area, and the pen scanning drive circuit is arranged on an area of ​​the sensing substrate adjacent to a second side of the sensing area, the second side being opposite to the first side.

[0019] According to an exemplary embodiment of the present invention, a display device includes: a display panel having an input sensor for sensing external input and a display including pixels; a sensing panel disposed on one surface of the display panel to sense fingerprint and pen input; and a control circuit for controlling the sensing panel and receiving multiple fingerprint reception signals and multiple pen reception signals from the sensing panel. The sensing panel includes: a sensing substrate; a first group of fingerprint sensing pixels disposed on a first region of the sensing substrate and connected to multiple fingerprint scan lines and multiple first fingerprint reception lines; and a first pen sensing pixel disposed on a second region of the sensing substrate and connected to the pen scan lines, first pen transmission lines, and first pen reception lines. The first pen sensing pixel includes a first sensing coil surrounding the first region of the sensing substrate on which the first group of fingerprint sensing pixels is disposed. A portion of the first sensing coil is directly adjacent to a first fingerprint sensing pixel in the first group of fingerprint sensing pixels.

[0020] In an exemplary embodiment of the present invention, the first group of fingerprint sensing pixels includes x fingerprint sensing pixels arranged in a first direction and y fingerprint sensing pixels arranged in a second direction different from the first direction, where x is a positive integer and y is a positive integer.

[0021] In an exemplary embodiment according to the present invention, the display device further includes: a second group of fingerprint sensing pixels, which are arranged on the third area of ​​the sensing substrate and connected to the multiple fingerprint scanning lines and the multiple second fingerprint receiving lines; and second pen sensing pixels, which are arranged on the fourth area of ​​the sensing substrate and connected to the pen scanning lines, the second pen transmission lines and the second pen receiving lines, wherein the second pen sensing pixels include a second sensing coil, which surrounds the third area of ​​the sensing substrate on which the second group of fingerprint sensing pixels is arranged, and a portion of the second sensing coil is directly adjacent to the second fingerprint sensing pixel in the second group of fingerprint sensing pixels.

[0022] In an exemplary embodiment according to the present invention, the first sensing coil is provided in a spiral shape, and the first region of the sensing substrate is provided within the spiral-shaped first sensing coil.

[0023] In an exemplary embodiment according to the present invention, the first area of ​​the sensing substrate on which the first group of fingerprint sensing pixels are disposed is configured to receive external light.

[0024] In an exemplary embodiment according to the present invention, one end of the first sensing coil is electrically connected to a ground voltage terminal, and the other end of the first sensing coil is electrically connected to the first pen sensing pixel.

[0025] In an exemplary embodiment according to the present invention, the display device further includes a sensing scan driving circuit configured to apply a sensing scan signal to the plurality of fingerprint scan lines and the pen scan lines.

[0026] In an exemplary embodiment according to the present invention, the display device further includes: a fingerprint scanning drive circuit; and a pen scanning drive circuit, wherein the plurality of fingerprint scanning lines are connected to the first group of fingerprint sensing pixels and the second group of fingerprint sensing pixels, the pen scanning lines are connected to the first pen sensing pixels and the second pen sensing pixels, the fingerprint scanning drive circuit is configured to apply a plurality of fingerprint scanning signals to the plurality of fingerprint scanning lines, and the pen scanning drive circuit is configured to apply a pen scanning signal to the pen scanning lines.

[0027] In an exemplary embodiment according to the present invention, the sensing substrate includes: a sensing area, the sensing area including the first area on which the first group of fingerprint sensing pixels are arranged and the second area on which the first pen sensing pixels are arranged, wherein the fingerprint scanning drive circuit is arranged on an area of ​​the sensing substrate adjacent to a first side of the sensing area, and the pen scanning drive circuit is arranged on an area of ​​the sensing substrate adjacent to a second side of the sensing area, the second side being opposite to the first side.

[0028] In an exemplary embodiment according to the present invention, the control circuit includes: a fingerprint reading circuit, which is configured to apply a fingerprint scanning control signal to the fingerprint scanning drive circuit and receive the multiple fingerprint receiving signals from the multiple first fingerprint receiving lines and the multiple second fingerprint receiving lines; and a pen sensing circuit, which is configured to apply a pen scanning control signal to the pen scanning drive circuit, apply a pen transmission signal to the first pen transmission line and the second pen transmission line, and receive the multiple pen receiving signals from the first pen receiving line and the second pen receiving line.

[0029] In an exemplary embodiment according to the present invention, the sensing panel further includes a sensing layer in which the first group of fingerprint sensing pixels and the first pen sensing pixels are arranged.

[0030] In an exemplary embodiment according to the present invention, the display device further includes an optical layer disposed between the display panel and the sensing panel, wherein the optical layer includes one layer and a transmission pinhole penetrating the layer.

[0031] In an exemplary embodiment according to the present invention, the display panel further includes an optical layer disposed on one surface of the display, and the optical layer includes one layer and a transmission pinhole penetrating the layer.

[0032] In an exemplary embodiment according to the present invention, the sensing substrate includes optical sensing areas, each of the optical sensing areas is defined based on the viewing angle of a corresponding one of the transmission pinholes, the first area of ​​the sensing substrate corresponds to a corresponding one of the optical sensing areas, and the first area of ​​the sensing substrate has an area equal to or greater than the area of ​​the corresponding one of the optical sensing areas.

[0033] In an exemplary embodiment according to the present invention, the display includes a display area in which the pixels are arranged and a non-display area defined adjacent to the display area, the sensing substrate includes a sensing area, the sensing area includes the first area on which the first group of fingerprint sensing pixels are arranged and the second area on which the first pen sensing pixels are arranged, and the sensing area of ​​the sensing panel overlaps with the display area of ​​the display.

[0034] In an exemplary embodiment according to the present invention, the display device further includes: a circuit board, wherein the sensing panel further includes: a sensing pad, the sensing pad is arranged in a non-sensing area of ​​the sensing substrate adjacent to the sensing area, and the circuit board is electrically connected to the sensing panel through the sensing pad, and the control circuit is provided on the circuit board.

[0035] According to an exemplary embodiment of the present invention, a sensing panel includes: a sensing substrate; fingerprint sensing pixels, which are arranged on a first area of ​​the sensing substrate and connected to multiple fingerprint scanning lines and multiple fingerprint receiving lines; and pen sensing pixels, which are arranged on a second area of ​​the sensing substrate and connected to corresponding pen scanning lines, pen transmission lines and pen receiving lines, wherein the pen sensing pixels include sensing coils, which surround the first area of ​​the sensing substrate on which the fingerprint sensing pixels are arranged.

[0036] According to an exemplary embodiment of the present invention, a display device includes: a display panel, the display panel including an input sensor configured to sense external input and a display including pixels; a sensing panel, the sensing panel being arranged on one surface of the display panel to sense fingerprint and pen input; and a control circuit, the control circuit being configured to control the sensing panel and receive multiple fingerprint reception signals and multiple pen reception signals from the sensing panel, the sensing panel including: a sensing base layer; fingerprint sensing pixels, the fingerprint sensing pixels being arranged on a first area of ​​the sensing base layer and connected to multiple fingerprint scanning lines and multiple fingerprint receiving lines; and pen sensing pixels, the pen sensing pixels being arranged on a second area of ​​the sensing base layer and connected to corresponding pen scanning lines, pen transmission lines and pen receiving lines, wherein the pen sensing pixels include a sensing coil, the sensing coil surrounding the first area of ​​the sensing base layer on which the fingerprint sensing pixels are arranged. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] The above and other advantages of the present disclosure will become readily apparent by reference to the following detailed description when considered in conjunction with the accompanying drawings, in which:

[0038] Figure 1is a perspective view showing a display device according to an exemplary embodiment of the present disclosure;

[0039] Figure 2 is an exploded perspective view illustrating a display device according to an exemplary embodiment of the present disclosure;

[0040] Figure 3A and Figure 3B is a cross-sectional view illustrating a display device according to an exemplary embodiment of the present disclosure;

[0041] Figure 4 It shows Figure 1 A block diagram of the display device shown in ;

[0042] Figure 5 is a plan view illustrating a display unit according to an exemplary embodiment of the present disclosure;

[0043] Figure 6 is a plan view illustrating a touch sensing unit according to an exemplary embodiment of the present disclosure;

[0044] Figure 7 is a plan view showing a sensing panel according to an exemplary embodiment of the present disclosure;

[0045] Figure 8 is a diagram showing a connection relationship between a pen sensing pixel, a pen scanning drive circuit, and a pen sensing circuit, and a connection relationship between a fingerprint sensing pixel, a fingerprint sensing scanning circuit, and a fingerprint readout circuit;

[0046] Figure 9A is a view showing a circuit configuration of a sensing panel according to another exemplary embodiment of the present disclosure;

[0047] Figure 9B is a view showing a circuit configuration of a sensing panel according to another exemplary embodiment of the present disclosure;

[0048] Figure 10 is a circuit diagram showing a pen sensing pixel;

[0049] Figure 11 It shows Figure 10 A timing diagram of the operation of the pen sensing pixel shown in ;

[0050] Figure 12 is a circuit diagram showing a fingerprint sensing pixel;

[0051] Figure 13A is a perspective view showing a display device to explain a fingerprint sensing method of a sensing panel;

[0052] Figure 13B It shows Figure 13A A cross-sectional view of the display device shown in ;

[0053] Figure 13C is a diagram showing fingerprint sensing pixels, an optical sensing area, and a fingerprint sensing block of a sensing panel;

[0054] Figure 14A is a plan view showing fingerprint sensing pixels and pen sensing pixels arranged in a sensing panel;

[0055] Figure 14B is a plan view showing fingerprint scanning lines, fingerprint receiving lines, pen scanning lines, pen transmission lines, and pen receiving lines electrically connected to fingerprint sensing pixels and pen sensing pixels arranged in a sensing panel;

[0056] Figure 15 、 Figure 16A 、 Figure 16B 、 Figure 17A 、 Figure 17B 、 Figure 18A and Figure 18B is a circuit diagram illustrating a pen sensing pixel according to another exemplary embodiment of the present disclosure;

[0057] Figure 19 It shows Figure 17A A timing diagram of the operation of the pen sensing pixel shown in ;

[0058] Figure 20A and Figure 20B is a circuit diagram illustrating a pen sensing pixel according to another exemplary embodiment of the present disclosure;

[0059] Figure 21 It shows Figure 20A A timing diagram of the operation of the pen sensing pixel shown in ;

[0060] Figure 22 is an enlarged cross-sectional view illustrating a display unit according to an exemplary embodiment of the present disclosure; and

[0061] Figure 23 is an enlarged cross-sectional view illustrating a sensing panel according to an exemplary embodiment of the present disclosure. DETAILED DESCRIPTION

[0062] In the following description, it will be understood that when an element or layer is referred to as being “on,” “connected to” or “coupled to” another element or layer, it can be directly on, directly connected to or directly coupled to the other element or layer, or intervening elements or layers may be present.

[0063] The same reference numerals refer to the same elements throughout. In the drawings, the thickness, ratio, and size of components are exaggerated in order to effectively describe the technical contents.

[0064] As used herein, the term "and / or" includes any and all combinations of one or more of the associated listed items.

[0065] It will be understood that, although the terms first, second, etc. can be used in this article to describe various elements, components, regions, layers and / or parts, these elements, components, regions, layers and / or parts should not be restricted by these terms. These terms are only used to distinguish an element, component, region, layer or part from another element, component, region, layer or part. Therefore, without departing from the teachings of the present disclosure, the first element, component, region, layer or part discussed below can be referred to as the second element, component, region, layer or part. As used herein, unless the context clearly indicates otherwise, the singular "a kind of", "one" and "described (the)" are also intended to include plural forms.

[0066] For ease of description, spatially relative terms such as "below," "beneath," "down," "above," and "upper" may be used herein to describe the relationship of one element or feature to another element(s) or feature(s) as shown in the accompanying drawings.

[0067] Unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which the present disclosure belongs. It will also be understood that, unless expressly defined as such herein, terms such as those defined in general dictionaries should be interpreted as having a meaning consistent with their meaning in the context of the relevant art, and will not be interpreted in an idealized or overly formal sense.

[0068] It will be further understood that when used in this specification, the terms “include” and / or “comprise” indicate the presence of stated features, integers, steps, operations, elements and / or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components and / or groups thereof.

[0069] Hereinafter, the present disclosure will be explained in detail with reference to the accompanying drawings.

[0070] Figure 1 is a perspective view illustrating a display device DD according to an exemplary embodiment of the present disclosure.

[0071] Figure 1 A mobile terminal is shown as a representative example of a display device DD according to an exemplary embodiment of the present disclosure. The mobile terminal may include a tablet PC, a smart phone, a personal digital assistant (PDA), a portable multimedia player (PMP), a game unit, or a wrist-type electronic device, etc. However, it should not be limited thereto or thereby.

[0072] The display device DD of the present disclosure can be applied to large electronic products such as televisions or outdoor billboards, as well as small and medium-sized electronic products such as personal computers, notebook computers, car navigation units, and cameras. These are merely exemplary, and thus, the display device DD can be applied to other electronic devices as long as the other electronic devices do not depart from the concept of the present disclosure.

[0073] like Figure 1 As shown in FIG, a display device DD can display an image IM toward a third direction DR3 via a display surface that is substantially parallel to each of a first direction DR1 and a second direction DR2. The display surface on which the image IM is displayed may correspond to the front surface of the display device DD. The display device DD may include multiple distinct areas on the display surface. The display surface may include a display area DA on which the image IM is displayed and a non-display area NDA defined adjacent to the display area DA. The non-display area NDA may be referred to as a bezel area. As an example, the display area DA may have a quadrilateral shape. The non-display area NDA may surround the display area DA. However, this is merely exemplary, and the non-display area NDA may be provided adjacent to only one side of the display area DA, or the non-display area NDA may be omitted. Furthermore, although not shown in the drawings, the display device DD may have a partially curved shape. Thus, a portion of the display area DA may have a curved shape. For example, a portion of the display area DA may be curved, thereby enabling the display of images not only toward the third direction DR3 but also toward the first direction DR1.

[0074] The front surface (or upper surface, or first surface) and the rear surface (or lower surface, or second surface) of each member of the display device DD are defined relative to the direction in which the image IM is displayed. However, the directions indicated by the first direction DR1, the second direction DR2, and the third direction DR3 are relative to each other, and therefore, the directions indicated by the first direction DR1, the second direction DR2, and the third direction DR3 may be changed to other directions. Hereinafter, the first direction, the second direction, and the third direction may be referred to by the same reference numerals in the directions indicated by the first direction axis DR1, the second direction axis DR2, and the third direction axis DR3, respectively.

[0075] The display device DD according to an exemplary embodiment of the present disclosure can sense a first input TC1 applied from the outside by a user. The first input TC1 of the user can include various types of external inputs, such as a part of the user's body, light, heat, or pressure. In this exemplary embodiment, for example, it is assumed that the first input TC1 of the user is a touch input applied to the front surface by the user's hand. As described above, the first input TC1 of the user can be provided in various forms. In addition, the display device DD can sense the first input TC1 applied by the user to the side surface or the rear surface of the display device DD, depending on its structure, however, it should not be specifically limited.

[0076] In addition, the display device DD can sense a second input TC2 applied externally thereto. The second input TC2 may include input generated by an electronic input device, such as a stylus, a touch pen, an electronic pen, or an electronic sensing pen (e-pen), rather than input from the user's hand. In the following description, it is assumed that the second input TC2 is generated by an electronic pen EP. The electronic pen EP may include a tip TP formed of a conductive material. The display device DD can sense the second input TC2 by sensing electromagnetic resonance caused by electromagnetic induction generated between an internally generated magnetic field and the tip TP of the electronic pen EP.

[0077] In example embodiments, the fingerprint sensing operation for the first input TC1 and the sensing operation for the second input TC2 from the electronic pen EP may be performed substantially simultaneously.

[0078] Figure 2 is an exploded perspective view illustrating a display device DD according to an exemplary embodiment of the present disclosure.

[0079] Reference Figure 2 The display device DD may include a display module DM and a sensing module SM. The display module DM may include a window member WM, a first adhesive member OCA1, a display panel DP, a panel circuit board P-FCB, a panel driving circuit PDC, and a touch sensing circuit TSC.

[0080] The window widget WM can provide Figure 1 . The front surface of the display device DD shown in FIG. The window member WM may include a glass substrate, a sapphire substrate, or a plastic substrate. The window member WM may also include a functional coating such as an anti-fingerprint layer, an anti-reflection layer, and a hard coating layer. As an example, the window member WM has a flat shape in the display area DA; however, the shape of the window member WM may vary. The edges of the window member WM facing each other in the first direction DR1 may have a curved surface.

[0081] The display panel DP is disposed on the rear surface of the window member WM and generates an image. The display panel DP may sense the user's first input TC1 (refer to Figure 1 In the present exemplary embodiment, as a representative example, the display panel DP has a flat display surface, however, the shape of the display panel DP may be changed. Edges of the display panel DP facing each other in the first direction DR1 may be bent from their center portions to provide a curved surface.

[0082] The display panel DP may include various display elements. For example, the display element may be a liquid crystal capacitor, an organic light-emitting element, an electrophoretic element, or an electrowetting element. The display element according to an exemplary embodiment may include a plurality of organic light-emitting diodes. For example, the display panel DP according to the present disclosure may be a flexible display panel, such as an organic light-emitting display panel.

[0083] The first adhesive member OCA1 may be disposed between the window member WM and the display panel DP. The first adhesive member OCA1 may be a transparent adhesive member, however, it should not be limited thereto or thereby.

[0084] One end of the panel circuit board P-FCB may be bonded to a pad arranged in an area of ​​the display panel DP to be electrically connected to the display panel DP. According to an exemplary embodiment, each of the panel driving circuit PDC and the touch sensing circuit TSC may be mounted on the panel circuit board P-FCB in a chip-on-film (COF) manner after being implemented in an integrated circuit IC. Although not shown separately, a plurality of passive components and a plurality of active components may be further mounted on the panel circuit board P-FCB. The panel circuit board P-FCB may apply an electrical signal to the display panel DP via a signal line. The panel circuit board P-FCB may be implemented in a flexible printed circuit board. Figure 2 In the embodiment, the panel driving circuit PDC and the touch sensing circuit TSC are mounted on one panel circuit board P-FCB, however, they should not be limited thereto or thereby. For example, the panel driving circuit PDC and the touch sensing circuit TSC may be mounted on two panel circuit boards, respectively.

[0085] The sensing module SM can be disposed on the rear surface of the display panel DP and can include a second adhesive member OCA2, a sensing panel SP, a sensing circuit board S-FCB, a fingerprint sensing circuit ROC, and a pen sensing circuit PSC. The fingerprint sensing circuit ROC and the pen sensing circuit PSC can control the operation of the sensing panel SP. For example, the fingerprint sensing circuit ROC can receive a fingerprint reception signal from the sensing panel SP, and the pen sensing circuit PSC can receive a pen reception signal from the sensing panel SP. In this exemplary embodiment, the sensing module SM is disposed on the rear surface of the display panel DP; however, the present disclosure should not be limited to or restricted in this regard. For example, the sensing module SM can be disposed on the upper surface of the display panel DP.

[0086] The second adhesive member OCA2 may be disposed between the display panel DP and the sensing panel SP. The second adhesive member OCA2 may be an optically transparent adhesive member, but is not limited to an optically transparent adhesive member.

[0087] exist Figure 2 In the embodiment, the first adhesive member OCA1 is included in the display module DM, and the second adhesive member OCA2 is included in the sensing module SM, however, the present disclosure should not be limited thereto or thereby.

[0088] The sensing panel SP may sense the amount of light emitted from the display panel DP through the window member WM to the outside and reflected by the user's hand to sense fingerprint information of the user.

[0089] One end of the sensing circuit board S-FCB can be bonded to a pad arranged in the area of ​​the sensing panel SP to electrically connect to the sensing panel SP. According to an exemplary embodiment, each of the fingerprint readout circuit ROC and the pen sensing circuit PSC can be implemented in an integrated circuit IC and then mounted on the sensing circuit board S-FCB in a chip-on-film (COF) manner. Although not shown separately, multiple passive components and multiple active components can be further mounted on the sensing circuit board S-FCB. The sensing circuit board S-FCB can apply electrical signals to the sensing panel SP via signal lines and can receive fingerprint sensing signals from the sensing panel SP. The sensing circuit board S-FCB can be implemented in a flexible printed circuit board.

[0090] In this exemplary embodiment, the panel circuit board P-FCB and the sensing circuit board S-FCB, which are respectively connected to one end of the display panel DP and one end of the sensing panel SP, may be arranged to face each other. However, the present disclosure should not be limited to or restricted in this regard. As another exemplary embodiment, the panel circuit board P-FCB and the sensing circuit board S-FCB may be arranged to be spaced apart from each other in the second direction DR2. For example, the panel circuit board P-FCB may be connected to one side of the display panel DP, and the sensing circuit board S-FCB may be connected to a side of the sensing panel SP corresponding to the other side of the display panel DP.

[0091] Apart from Figure 1 In addition to the display module DM and the sensing module SM shown in FIG, the display device DD may further include various components to control the operation of the display module DM and the sensing module SM. Figure 4 Circuit elements of the display device DD are described in detail.

[0092] The display device DD according to an exemplary embodiment of the present disclosure may further include a lower case BC. The window member WM and the lower case BC may be coupled to each other to accommodate the display module DM and the sensing module SM.

[0093] In example embodiments, the sensing panel SP may perform operations for Figure 1 The fingerprint sensing operation of the first input TC1 and the Figure 1 The sensing operation of the second input TC2 from the electronic pen EP.

[0094] Figure 3A is a cross-sectional view illustrating a display device DD according to an exemplary embodiment of the present disclosure.

[0095] Reference Figure 3A The display device DD may include a display module DM and a sensing module SM. The display module DM may include a window member WM, a first adhesive member OCA1, and a display panel DP. The display panel DP may include a touch sensing unit TSU and a display unit DU. According to another embodiment, the stacking order of the touch sensing unit TSU and the display unit DU may be changed. According to another embodiment, the window member WM may include an anti-reflection layer and a window layer.

[0096] The touch sensing unit TSU can sense Figure 1 As described above, the first input TC1 may be one of various types of external inputs such as touch, heat, pressure, or a combination thereof by the user's body. Therefore, the touch sensing unit TSU may be referred to as an input sensing unit (e.g., an input sensor).

[0097] The sensing module SM may include a sensing panel SP and a second adhesive member OCA2. The sensing panel SP may include a sensing base layer SBL and a sensing layer SL. The sensing module SM may further include an optical layer OCL and a third adhesive member OCA3 disposed on the upper surface of the sensing panel SP. The third adhesive member OCA3 combines the optical layer OCL and the sensing panel SP. The third adhesive member OCA3 may be an optically transparent adhesive member. The optical layer OCL may include a plurality of transmissive pinholes PH that transmit light received by the first input TC1 (refer to FIG. 1 ). Figure 1 For example, the transmissive pinhole PH may penetrate the optical layer OCL so that the light may travel to the sensing panel SP.

[0098] Figure 3B is a cross-sectional view illustrating a display device DD according to an exemplary embodiment of the present disclosure.

[0099] Reference Figure 3B The display device DD may include a display module DM and a sensing module SM. The display module DM may include a window member WM, a first adhesive member OCA1, and a display panel DP. The display panel DP may include a touch sensing unit TSU, a display unit DU, and an optical layer OCL. According to another embodiment, the window member WM may include an anti-reflection layer and a window layer.

[0100] The optical layer OCL may include a plurality of transmission pinholes PH, wherein the plurality of transmission pinholes PH transmit the first input TC1 (refer to Figure 1 ) is reflected by a fingerprint. The optical layer OCL will be described in detail later. Although not shown in the drawings, an adhesive member that bonds the display unit DU and the optical layer OCL may be provided between the display unit DU and the optical layer OCL. For example, a transmissive pinhole PH may penetrate the optical layer OCL so that light can travel to the sensing panel SP.

[0101] The touch sensing unit TSU can sense Figure 1 As described above, the first input TC1 may be one of various types of external inputs such as touch, heat, pressure, or a combination thereof by a user's body. Therefore, the touch sensing unit TSU may be referred to as an input sensing unit.

[0102] The sensing module SM may include a sensing panel SP and a second adhesive member OCA2. The sensing panel SP may include a sensing base layer SBL and a sensing layer SL.

[0103] Figure 4 It shows Figure 1 A block diagram of a display device DD is shown in FIG.

[0104] Reference Figure 4 The display device DD may include a display module DM, a power module PM, a first electronic module EM1, a second electronic module EM2, and a sensing module SM. The display module DM, the power module PM, the first electronic module EM1, the second electronic module EM2, and the sensing module SM may be electrically connected to each other. Figure 4 It is shown that the display module DM may include a display unit DU, a panel driving circuit PDC, a touch sensing unit TSU, and a touch sensing circuit TSC.

[0105] in addition, Figure 4 It is shown that the sensing module SM may include a sensing panel SP, a fingerprint readout circuit ROC, and a pen sensing circuit PSC. The configuration and function of the sensing module SM will be described later.

[0106] The power module PM supplies power required for the overall operation of the display device DD. The power module PM may include a normal battery module.

[0107] The first electronic module EM1 and the second electronic module EM2 may include various functional modules to drive the display device DD. The first electronic module EM1 may be directly mounted on a motherboard electrically connected to the display module DM, or the first electronic module EM1 may be mounted on a separate substrate and then electrically connected to the motherboard via a connector (not shown).

[0108] The first electronic module EM1 may include a control module CM, a wireless communication module TM, an image input module IIM, an audio input module AIM, a memory MM, and an external interface IF. Some of these modules may be electrically connected to the motherboard via a flexible circuit board without being mounted on the motherboard.

[0109] The control module CM can control the overall operation of the display device DD. The control module CM can be, but is not limited to, a controller such as a microprocessor. For example, the control module CM can activate or deactivate the display module DM. The control module CM can control other modules, such as the image input module IIM or the audio input module AIM, based on a touch signal provided by the display module DM. The control module CM can also perform user authentication based on a fingerprint signal provided by the sensing module SM.

[0110] The wireless communication module TM can use Bluetooth or wireless local area network (WiFi) links to send and receive wireless signals to and from other terminals. The wireless communication module TM can also use universal communication lines to send and receive voice signals to and from a repeater. The wireless communication module TM may include a transmitter TM1 that modulates a signal to be transmitted and transmits the modulated signal; and a receiver TM2 that demodulates the signal applied thereto.

[0111] The image input module IIM can process image signals and convert them into image data that can be displayed by the display module DM. The audio input module AIM can receive external sound signals through a microphone in a recording mode or a voice recognition mode and convert the external sound signals into electronic voice data.

[0112] The external interface IF may serve as an interface between the control module CM and external devices such as an external charger, a wired / wireless data port, a card (eg, memory card and SIM / UIM card) slot, and the like.

[0113] The second electronic module EM2 may include an audio output module AOM, a light emitting module LM, a light receiving module LRM, and a camera module CMM. These modules may be mounted directly on the motherboard, may be electrically connected to the display module DM via a connector (not shown) after being mounted on a separate substrate, or may be electrically connected to the first electronic module EM1.

[0114] The audio output module AOM may convert audio data provided from the wireless communication module TM or audio data stored in the memory MM and may output the converted audio data to the outside.

[0115] The light emitting module LM can generate light and can output light. The light emitting module LM can emit infrared rays. The light emitting module LM may include an LED element. The light receiving module LRM can sense infrared rays. When infrared rays having a predetermined level or higher are sensed, the light receiving module LRM may be activated. The light receiving module LRM may include a complementary metal oxide semiconductor (CMOS) sensor. The infrared rays generated by the light emitting module LM and output from the light emitting module LM may be reflected by an external object such as a user's finger or face, and the reflected infrared rays may be incident on the light receiving module LRM. The camera module CMM captures an image of the external object.

[0116] Figure 5 is a plan view illustrating a display unit DU according to an exemplary embodiment of the present disclosure. Figure 5 The signal circuit diagram is shown schematically. Figure 5 Some components are omitted.

[0117] Reference Figure 5 , the display unit DU may include a display area DU-DA and a non-display area DU-NDA. In this exemplary embodiment, the non-display area DU-NDA may be defined along the edge of the display area DU-DA. The display area DU-DA and the non-display area DU-NDA of the display unit DU may correspond to Figure 1 The display device DD shown in FIG. 1 includes a display area DA and a non-display area NDA.

[0118] The display unit DU may include a scan drive circuit SDC, a plurality of signal lines SGL (hereinafter referred to as "signal lines"), a plurality of signal pads DU-PD (hereinafter referred to as "signal pads"), and a plurality of pixels PX (hereinafter referred to as "pixels"). The pixels PX may be arranged in the display area DU-DA. Each pixel PX may include an organic light emitting diode and a pixel drive circuit connected to the organic light emitting diode.

[0119] The scan drive circuit SDC can generate a plurality of scan signals (hereinafter referred to as "scan signals") and can sequentially output the scan signals to a plurality of scan lines GL (hereinafter referred to as "scan lines") described later. The scan drive circuit SDC can further output other control signals to the pixel drive circuit of the pixel PX.

[0120] As a pixel driving circuit of the pixel PX, the scan driving circuit SDC may include a plurality of thin film transistors formed through the same process, for example, a low temperature polysilicon (LTPS) process or a low temperature polycrystalline oxide (LTPO) process.

[0121] The signal lines SGL may include scan lines GL, data lines DL, power lines PL, and control signal lines CSL. Each scan line GL may be connected to a corresponding pixel in the pixels PX, and each data line DL may be connected to a corresponding pixel in the pixels PX. The power lines PL may be connected to the pixels PX. The control signal lines CSL may provide control signals to the scan drive circuit SDC.

[0122] The signal line SGL may overlap the display area DU-DA and the non-display area DU-NDA. The signal line SGL may include a pad portion and a line portion. The line portion may overlap the display area DU-DA and the non-display area DU-NDA. The pad portion may be connected to one end of the line portion. The pad portion may be provided in the non-display area DU-NDA and may overlap with a corresponding signal pad in the signal pads DU-PD. The area in the non-display area DU-NDA in which the signal pads DU-PD are arranged may be referred to as a "pad area NDA-PD."

[0123] The line portion connected to the pixel PX may substantially form a signal line SGL. The line portion may be connected to a transistor (not shown) of the pixel PX. The line portion may have a single-layer or multi-layer structure and may be formed as a single body, or may include two or more parts. The two or more parts may be provided on different layers and may be connected to each other via a contact hole defined by passing through an insulating layer provided between the two or more parts.

[0124] The display unit DU may further include a touch sensing pad TS-PD disposed in the pad area NDA-PD. The touch sensing pad TS-PD may be formed by the same process as the signal line SGL and may be disposed on the same layer as the signal line SGL.

[0125] The touch sensing pad TS-PD can be included with Figure 3A and Figure 3B The touch sensing pads TS-PD may be electrically insulated from the signal lines SGL of the display unit DU.

[0126] Figure 5 Also shown is a panel circuit board P-FCB electrically connected to the display unit DU. The panel circuit board P-FCB may be a rigid circuit board or a flexible circuit board. The panel circuit board P-FCB may be directly coupled to the display unit DU or may be connected to the display unit DU via another circuit board.

[0127] A panel drive circuit PDC may be provided on the panel circuit board P-FCB to control the operation of the display unit DU. Additionally, a touch sensing circuit TSC that controls the touch sensing unit TSU may be provided on the panel circuit board P-FCB. Each of the panel drive circuit PDC and the touch sensing circuit TSC may be mounted on the panel circuit board P-FCB in the form of an integrated chip. The panel circuit board P-FCB may include a circuit board pad PCB-PD electrically connected to the display unit DU. Although not shown in the drawings, the panel circuit board P-FCB may further include signal lines connecting the circuit board pad PCB-PD to the panel drive circuit PDC and to the touch sensing circuit TSC.

[0128] Figure 6 is a plan view illustrating a touch sensing unit TSU according to an exemplary embodiment of the present disclosure.

[0129] Reference Figure 6 , the touch sensing unit TSU can be set Figure 5 The touch sensing unit TSU can sense the first input TC1 (refer to Figure 1 ) to obtain information about the position and strength of the external touch input. The touch sensing unit TSU may include a touch area TA and a touch peripheral area TSA. In this exemplary embodiment, the touch peripheral area TSA may be defined along the edge of the touch area TA. The touch area TA and the touch peripheral area TSA may correspond to Figure 1 The display device DD includes a display area DA and a non-display area NDA.

[0130] The touch sensing unit TSU may include a plurality of first sensing electrodes SE1 , a plurality of second sensing electrodes SE2 , a plurality of sensing lines TL1 and TL2 , and a plurality of touch sensing pads TS-PD.

[0131] The first sensing electrode SE1 and the second sensing electrode SE2 may be arranged in the touch area TA. The touch sensing unit TSU may obtain information about a touch input according to a change in capacitance between the first sensing electrode SE1 and the second sensing electrode SE2.

[0132] The first sensing electrode SE1 may extend in the first direction DR1 and may be arranged in the second direction DR2. The first sensing electrode SE1 may include a plurality of first sensing patterns SP1 and a plurality of first connection patterns CP1.

[0133] The first sensing patterns SP1 forming one first sensing electrode may be arranged spaced apart from each other in the first direction DR1. For ease of illustration, the first sensing patterns SP1 are shown shaded. A first connection pattern CP1 may be provided between the first sensing patterns SP1 to connect two adjacent first sensing patterns SP1. In example embodiments, the first connection pattern CP1 may be provided between the first sensing patterns SP1 to connect two adjacent first sensing patterns SP1 in the first direction DR1.

[0134] The second sensing electrode SE2 may extend in the second direction DR2 and may be arranged in the first direction DR1. The second sensing electrode SE2 may include a plurality of second sensing patterns SP2 and a plurality of second connection patterns CP2.

[0135] The second sensing patterns SP2 forming one second sensing electrode may be arranged to be spaced apart from each other in the second direction DR2. The second connection pattern CP2 may be provided between the second sensing patterns SP2 to connect two second sensing patterns SP2 adjacent to each other. In example embodiments, the second connection pattern CP2 may be provided between the second sensing patterns SP2 to connect two second sensing patterns SP2 adjacent to each other in the second direction DR2.

[0136] The sensing lines TL1 and TL2 may be provided in the touch peripheral area TSA. The sensing lines TL1 and TL2 may include first sensing lines TL1 and second sensing lines TL2. The first sensing lines TL1 may be connected to the first sensing electrodes SE1, respectively. The second sensing lines TL2 may be connected to one end of the second sensing electrodes SE2, respectively.

[0137] The touch sensing pads TS-PD may be provided in the touch peripheral area TSA. The touch sensing pads TS-PD may include a first sensing pad TP1 and a second sensing pad TP2. The first sensing pad TP1 may be connected to a first sensing line TL1 to apply an external signal to the first sensing electrode SE1. The second sensing pad TP2 may be electrically connected to the second sensing electrode SE2 via a second sensing line TL2.

[0138] Figure 7 is a plan view illustrating a sensing panel according to an exemplary embodiment of the present disclosure.

[0139] Reference Figure 7 , the sensing panel SP can sense the first input TC1 (refer to Figure 1 ) reflected light to obtain the user's fingerprint information. In addition, the sensing panel SP can receive the second input TC2 (refer to Figure 1 ) signal to obtain the coordinate information of the second input TC2.

[0140] The sensing panel SP may include a sensing area SA and a non-sensing area NSA on the sensing base layer SBL. The non-sensing area NSA may be defined along an edge of the sensing area SA. The sensing area SA and the non-sensing area NSA of the sensing panel SP may correspond to Figure 1 . For example, the sensing area SA and the non-sensing area NSA of the sensing panel SP may be respectively connected to the display area DA and the non-display area NDA of the display device DD. Figure 1 The display area DA and the non-display area NDA of the display device DD shown in FIG. 8 overlap. Figure 1 The display area DA of the display device DD shown in FIG. Figure 5 The display area DU-DA of the display unit DU shown in FIG. Figure 6 The touch area TA of the touch sensing unit TSU shown in FIG. Figure 7 The sensing areas SA of the sensing panel SP shown in FIG may correspond to each other. For example, the touch area TA of the touch sensing unit TSU and the sensing area SA of the sensing panel SP may overlap with each other. Similarly, Figure 1 The non-display area NDA of the display device DD shown in FIG. Figure 5 The non-display area DU-NDA of the display unit DU shown in FIG. Figure 6 The touch peripheral area TSA of the touch sensing unit TSU shown in FIG. Figure 7 The non-sensing areas NSA of the sensing panel SP shown in FIG. 5 may correspond to each other. For example, the touch peripheral area TSA of the touch sensing unit TSU and the non-sensing area NSA of the sensing panel SP may overlap with each other.

[0141] The sensing panel SP may include a pen scanning driving circuit PSDC, a fingerprint scanning driving circuit FSDC, a plurality of pen sensing pixels PSX, a plurality of fingerprint sensing pixels FSX, a pen scanning control line PCL, pen scanning lines PSL1 to PSLm, pen transmission lines PTL1 to PTLi, pen receiving lines PRL1 to PRLi, a fingerprint scanning control line FCL, fingerprint scanning lines FSL1 to FSLn, fingerprint receiving lines FRL1 to FRLj, a first power line PL1, a second power line PL2, and a plurality of sensing pads SP-PD. Figure 7 In FIG. 4 , the sensing panel SP includes two power lines PL1 and PL2 , however, the sensing panel SP may further include a plurality of power lines to provide a plurality of voltages required for the operations of the pen sensing pixels PSX and the fingerprint sensing pixels FSX.

[0142] Pen sensing pixels PSX and fingerprint sensing pixels FSX may be disposed in the sensing area SA. Pen sensing pixels PSX may be connected to pen scan lines PSL1 to PSLm, pen transmission lines PTL1 to PTLi, pen reception lines PRL1 to PRLi, and a first power line PL1. Fingerprint sensing pixels FSX may be connected to fingerprint scan lines FSL1 to FSLn, fingerprint reception lines FRL1 to FRLj, and a second power line PL2.

[0143] The pen scanning driving circuit PSDC and the fingerprint scanning driving circuit FSDC may be disposed in the non-sensing area NSA. In an exemplary embodiment, the pen scanning driving circuit PSDC and the fingerprint scanning driving circuit FSDC may be disposed to be spaced apart from each other, with the sensing area SA interposed therebetween.

[0144] The sensing pad SP-PD may be arranged in the non-sensing area NSA. The sensing pad SP-PD may be electrically connected to the pen scan control line PCL, the pen transmission lines PTL1 to PTLi, the pen receiving lines PRL1 to PRLi, the fingerprint scan control line FCL, the fingerprint receiving lines FRL1 to FRLj, the first power line PL1, and the second power line PL2.

[0145] Figure 7 In addition, a sensing circuit board S-FCB electrically connected to the sensing panel SP is shown. The sensing circuit board S-FCB may be a rigid circuit board or a flexible circuit board. The sensing circuit board S-FCB may be directly coupled to the sensing panel SP or may be electrically connected to the sensing panel SP via another circuit board.

[0146] The sensing circuit board S-FCB may include a control circuit CC. The control circuit CC may include a fingerprint readout circuit (ROC) and a pen sensing circuit (PSC) that control the operation of the sensing panel SP. Furthermore, sensing board pads SF-PD may be provided in the sensing circuit board S-FCB. Although not shown in the drawings, the sensing circuit board S-FCB may further include signal lines connecting the sensing board pads SF-PD to the fingerprint readout circuit (ROC) and the pen sensing circuit (PSC).

[0147] The sensing board pads SF-PD of the sensing circuit board S-FCB can be connected to the sensing pads SP-PD of the sensing panel SP. Therefore, the fingerprint readout circuit ROC and the pen sensing circuit PSC of the sensing circuit board S-FCB can be electrically connected to the sensing panel SP via the sensing board pads SF-PD and the sensing pads SP-PD.

[0148] In an exemplary embodiment, each of the fingerprint readout circuit ROC and the pen sensing circuit PSC may be independently implemented in an integrated circuit IC and then mounted on the sensing circuit board S-FCB. According to another exemplary embodiment, the control circuit CC including the fingerprint readout circuit ROC and the pen sensing circuit PSC may be implemented in a single integrated circuit IC.

[0149] Figure 8 1 is a diagram showing the connection relationship between the pen sensing pixels PSX, the pen scanning drive circuit PSDC, and the pen sensing circuit PSC provided in the sensing panel SP, and the connection relationship between the fingerprint sensing pixels FSX, the fingerprint scanning drive circuit FSDC, and the fingerprint readout circuit ROC provided in the sensing panel SP. Figure 8 Although not shown in the figure, the sensing panel SP may further include power supply lines to supply voltages required for the operations of the pen sensing pixels PSX and the fingerprint sensing pixels FSX.

[0150] Reference Figure 8 , each pen sensing pixel PSX may be connected to a corresponding pen scan line among the pen scan lines PSL1 to PSLm, a corresponding pen transmission line among the pen transmission lines PTL1 to PTLi, and a corresponding pen receiving line among the pen receiving lines PRL1 to PRLi.

[0151] The pen sensing circuit PSC may provide a pen scanning control signal PCTRL to the pen scanning driving circuit PSDC via the pen scanning control line PCL. The pen scanning control signal PCTRL may include a scanning start signal and / or a clock signal to control the operation of the pen scanning driving circuit PSDC.

[0152] The pen scanning driving circuit PSDC can generate a plurality of pen scanning signals PS1 to PSm in synchronization with the pen scanning control signal PCTRL and can sequentially output the pen scanning signals PS1 to PSm to the pen scanning lines PSL1 to PSLm. The pen scanning driving circuit PSDC can further output another control signal to the pen sensing pixel PSX.

[0153] The fingerprint scanning drive circuit FSDC can generate a plurality of fingerprint scanning signals FS1 to FSn in synchronization with the fingerprint scanning control signal FCTRL and can sequentially output the fingerprint scanning signals FS1 to FSn to the fingerprint scanning lines FSL1 to FSLn. The fingerprint scanning drive circuit FSDC can further output another control signal to the fingerprint sensing pixel FSX.

[0154] In the present exemplary embodiment, the sensing panel SP includes one fingerprint scanning drive circuit FSDC and one pen scanning drive circuit PSDC. However, the present invention is not limited thereto or thereby. For example, the sensing panel SP may include two fingerprint scanning drive circuits and / or two pen scanning drive circuits disposed facing each other in the non-sensing area NSA, with the sensing area SA interposed between the two fingerprint scanning drive circuits and / or between the two pen scanning drive circuits.

[0155] The pen sensing circuit PSC may provide pen transmission signals PT1 to PTi to the pen transmission lines PTL1 to PTLi and may receive pen reception signals PR1 to PRi from the pen reception lines PRL1 to PRLi.

[0156] Each fingerprint sensing pixel FSX may be connected to a corresponding fingerprint scanning line among the fingerprint scanning lines FSL1 to FSLn and a corresponding fingerprint receiving line among the fingerprint receiving lines FRL1 to FRLj.

[0157] The fingerprint readout circuit ROC can provide a fingerprint scan control signal FCTRL to the fingerprint scan drive circuit FSDC via the fingerprint scan control line FCL. The fingerprint scan control signal FCTRL may include a scan start signal and / or a clock signal to control the operation of the fingerprint scan drive circuit FSDC.

[0158] The fingerprint scanning driving circuit FSDC may sequentially drive the fingerprint scanning lines FSL1 to FSLn in synchronization with the fingerprint scanning control signal FCTRL.

[0159] The fingerprint readout circuit ROC may receive fingerprint reception signals FR1 to FRj from the fingerprint reception lines FRL1 to FRLj.

[0160] like Figure 7 and Figure 8 As shown in FIG, the sensing panel SP may include fingerprint sensing pixels FSX and pen sensing pixels PSX. Thus, the sensing panel SP can sense a user's first fingerprint input TC1 and a second input TC2 from the electronic pen EP. Furthermore, because the fingerprint scanning drive circuit FSDC and fingerprint readout circuit ROC for driving the fingerprint sensing pixels FSX, and the pen scanning drive circuit PSDC and pen sensing circuit PSC for driving the pen sensing pixels PXS, operate independently, the sensing panel SP can receive the first input TC1 and the second input TC2 substantially simultaneously. For example, the sensing panel SP can perform a fingerprint sensing operation for the first input TC1 and a sensing operation for the second input TC2 from the electronic pen EP substantially simultaneously.

[0161] Figure 9A is a view illustrating a circuit configuration of a sensing panel SP2 according to an exemplary embodiment of the present disclosure.

[0162] exist Figure 7 and Figure 8 In the sensing panel SP shown in , a pen scanning driving circuit PSDC for driving the pen sensing pixels PSX and a fingerprint scanning driving circuit FSDC for driving the fingerprint sensing pixels FSX are provided separately from each other. Figure 9A In the case of the sensing panel SP2 shown in , all the pen sensing pixels PSX and fingerprint sensing pixels FSX can be driven by the sensing scan driving circuit SSDC.

[0163] The pen sensing circuit PSC can provide a scan control signal SCTRL to the sensing scan driver circuit SSDC via a scan control line SCL. The scan control signal SCTRL may include a scan start signal and / or a clock signal to control the operation of the sensing scan driver circuit SSDC. In some embodiments, the fingerprint readout circuit ROC may provide the scan control signal SCTRL to the sensing scan driver circuit SSDC instead of the pen sensing circuit PSC.

[0164] The sensing scan driving circuit SSDC may generate a plurality of sensing scan signals SS1 to SSk in synchronization with the scan control signal SCTRL and may sequentially output the sensing scan signals SS1 to SSk to the plurality of sensing scan lines SSL1 to SSLk.

[0165] exist Figure 8 The number of pen sensing pixels PSX and the number of fingerprint sensing pixels FSX shown in FIG are respectively Figure 9A In the case where the number of pen sensing pixels PSX and the number of fingerprint sensing pixels FSX shown in FIG are the same, Figure 9A The number (k) of the sensing scan lines SSL1 to SSLk shown in FIG. 1 may be the number (m) of the pen scan lines PSL1 to PSLm and the number (m) of the pen scan lines PSL1 to PSLm. Figure 8 The sum of the number (n) of the fingerprint scanning lines FSL1 to FSLn shown in (k=m+n, each of k, m and n is a natural number).

[0166] Figure 9A The configuration and operation of the pen sensing pixels PSX, fingerprint sensing pixels FSX, pen sensing circuit PSC, and fingerprint readout circuit ROC of the sensing panel SP2 shown in FIG. Figure 8 The corresponding configurations and operations described in are substantially the same, and therefore, details thereof will be omitted.

[0167] Figure 9B is a view illustrating a circuit configuration of a sensing panel SP3 according to an exemplary embodiment of the present disclosure.

[0168] exist Figure 9BIn the case of the sensing panel SP3 shown in , a plurality of pen sensing pixels PSX and a plurality of fingerprint sensing pixels FSX may be driven by the sensing scan driving circuit SSDC.

[0169] The pen sensing circuit PSC can provide a scan control signal SCTRL to the sensing scan driver circuit SSDC via a scan control line SCL. The scan control signal SCTRL may include a scan start signal and / or a clock signal to control the operation of the sensing scan driver circuit SSDC. In some embodiments, the fingerprint readout circuit ROC may provide the scan control signal SCTRL to the sensing scan driver circuit SSDC instead of the pen sensing circuit PSC.

[0170] The sensing scan driving circuit SSDC may generate a plurality of sensing scan signals SS1 to SSx in synchronization with the scan control signal SCTRL and may sequentially output the sensing scan signals SS1 to SSx to the plurality of sensing scan lines SSL1 to SSLx.

[0171] Some of the sensing scan lines SSL1 to SSLx may be commonly connected to the pen sensing pixels PSX and the fingerprint sensing pixels FSX. For example, the pen sensing pixels PSX and the fingerprint sensing pixels FSX may be commonly connected to the sensing scan line SSL1, and the pen sensing pixels PSX and the fingerprint sensing pixels FSX may be commonly connected to the sensing scan line SSLx.

[0172] exist Figure 9A The number of pen sensing pixels PSX and the number of fingerprint sensing pixels FSX shown in FIG are respectively Figure 9B In the case where the number of pen sensing pixels PSX and the number of fingerprint sensing pixels FSX shown in FIG are the same, Figure 9B The number (x) of the sensing scan lines SSL1 to SSLx shown in FIG may be less than Figure 9A The number (k) of the sensing scan lines SSL1 to SSLk shown in FIG (k>x, each of k and x is a natural number) may be smaller than the number (k) by 2 in example embodiments.

[0173] Hereinafter, for convenience of explanation, the sensing scan line connected to the fingerprint sensing pixel FSX will be referred to as a “fingerprint scan line”, and the sensing scan line connected to the pen sensing pixel PSX will be referred to as a “pen scan line”, however, the fingerprint scan line and the pen scan line may be Figure 9A and Figure 9B A sensing scan driving circuit SSDC is shown to drive, Figure 9A A sensing scan driving circuit SSDC and Figure 9B There is no difference between the one sensing scan driving circuit SSDC shown in FIG.

[0174] Figure 10 is a circuit diagram showing a pen sensing pixel PSXab. Figure 11 It shows Figure 10 : A timing diagram of the operation of the pen sensing pixel PSXab shown in FIG.

[0175] Figure 10 The pen sensing pixel PSXab shown in FIG. 5 may be electrically connected to the a-th pen scan line PSLa, the b-th pen transmission line PTLb, and the b-th pen receiving line PRLb.

[0176] Reference Figure 10 , the pen sensing pixel PSXab may include a first switching transistor PST1, a second switching transistor PST2, and a sensing coil LL (or inductor). The first switching transistor PST1 may include a first electrode connected to the pen transmission line PTLb, a second electrode connected to the gate electrode of the second switching transistor PST2, and a gate electrode connected to the pen scanning line PSLa. The second switching transistor PST2 may include a first electrode connected to the first power line PL1, a second electrode connected to one end of the sensing coil LL, and a gate electrode connected to the second electrode of the first switching transistor PST1. The second electrode of the second switching transistor PST2 may also be connected to the pen receiving line PRLb. The first power line PL1 may receive a power supply voltage VDD. One end of the sensing coil LL may be connected to the second electrode of the second switching transistor PST2, and the other end of the sensing coil LL may be connected to the ground voltage terminal VSS.

[0177] exist Figure 10 In the exemplary embodiment shown in , each of the first switching transistor PST1 and the second switching transistor PST2 may be a p-type metal oxide semiconductor (PMOS) transistor, however, it should not be limited thereto or thereby. According to an embodiment, each of the first switching transistor PST1 and the second switching transistor PST2 may be an n-type metal oxide semiconductor (NMOS) transistor.

[0178] Reference Figure 10 and Figure 11 , when a pen scan signal PSa having an effective level (e.g., a low level) is applied to the pen scan line PSLa during the transmission period TX, the first switching transistor PST1 can be turned on. For example, when a predetermined pen transmission signal PTb is applied to the pen transmission line PTLb, the second switching transistor PST2 can be repeatedly turned on and off by the pen transmission signal PTb, and current can flow through the sensing coil LL, thereby forming a magnetic field. The size of the resonant signal sensed at one end of the sensing coil LL can change according to the presence or absence of the second input TC2. Pen sensing circuit PSC (refer to Figure 8) can receive the pen reception signal PRb via the pen reception line PRLb. For example, the pen sensing circuit PSC (refer to Figure 8 ) can receive the pen reception signal PRb via the pen reception line PRLb during the reception period RX according to the level of the resonance signal. As described above, the pen sensing pixel PSXab of the present disclosure can receive the pen reception signal PRb via the electromagnetic resonance (EMR) method. Figure 1 The electronic pen EP shown in FIG receives a second input TC2 .

[0179] Figure 12 is a circuit diagram showing a fingerprint sensing pixel FSXcd.

[0180] Figure 12 The fingerprint sensing pixel FSXcd shown in FIG may be electrically connected to the cth fingerprint scanning line FSLc and the dth fingerprint receiving line FRLd.

[0181] Reference Figure 12 The fingerprint sensing pixel FSXcd may include a switching transistor ST, a capacitor CST, and a photodiode PD. The switching transistor ST may include a first electrode connected to the fingerprint receiving line FRLd, a second electrode connected to one end of the capacitor CST, and a gate electrode connected to the fingerprint scanning line FSLc. One end of the capacitor CST may be connected to the second electrode of the switching transistor ST, and the other end of the capacitor CST may be connected to the first voltage line PL21 to which a first voltage VCST is applied. The photodiode PD may include an anode connected to the second voltage line PL22 and a cathode connected to the second electrode of the switching transistor ST.

[0182] When light is applied to the photodiode PD, current may flow through the photodiode PD, and the voltage level may be almost proportional to the amount of light. The charge generated by the photodiode PD may be charged into the capacitor CST. When a fingerprint scan signal FSc having a low level is received through the fingerprint scan line FSLc, the switching transistor ST may be turned on, and the charge charged in the capacitor CST may be discharged, thereby outputting a fingerprint sensing signal through the fingerprint reception line FRLd.

[0183] Figure 12 The fingerprint sensing pixel FSXcd shown in FIG is merely exemplary, and the present disclosure should not be limited thereto or thereby. According to an embodiment, the fingerprint sensing pixel FSXcd may include two switching transistors.

[0184] Figure 13A is a perspective view showing a display device DD to explain a fingerprint sensing method of a sensing panel.

[0185] Figure 13A Only shown Figure 3BSome components of the display device DD related to fingerprint sensing operations are shown in FIG. The display device DD may include a window member WM, a display panel DP, an optical layer OCL, and a sensing panel SP. The sensing panel SP may include a sensing base layer SBL and a sensing layer SL. The optical layer OCL may be disposed between the display panel DP and the sensing panel SP.

[0186] Reference Figures 7 to 12 The described fingerprint sensing pixels FSX, pen sensing pixels PSX, fingerprint scanning driving circuit FSDC, and pen scanning driving circuit PSDC may be disposed on the sensing layer SL over the sensing base layer SBL.

[0187] In addition, the fingerprint sensing pixel FSX may be a fingerprint sensor operated in an optical manner, wherein the fingerprint is recognized by sensing light reflected by valleys between ridges by an image sensor. The optical layer OCL may include a light source that transmits light received by the first input TC1 (refer to FIG. Figure 1 ) of the fingerprint. For example, the transmissive pinholes PH of the optical layer OCL may be transmissive. In example embodiments, each transmissive pinhole PH may have a diameter DI, and the transmissive pinholes PH may be spaced apart from each other by a pitch W. On the other hand, the portion of the optical layer OCL where the transmissive pinholes PH are not formed may include an opaque material to block light traveling thereto. In addition, according to example embodiments, the optical layer OCL may be formed of a material having a low reflectivity. In example embodiments, the optical layer OCL may have a predetermined thickness T.

[0188] In an exemplary embodiment, the optical layer OCL may be disposed substantially parallel to the display panel DP and the sensing panel SP. Each transmissive pinhole PH of the optical layer OCL may overlap with some fingerprint sensing pixels FSX provided to the sensing panel SP. Therefore, light from the pixels of the display panel DP may be provided to the fingerprint input area FIA defined on the window member WM. By the first input TC1 (refer to Figure 1 ) can travel back to the fingerprint input area FIA and can be provided to the light sensing area OSA of the sensing panel SP within the field of view (i.e., viewing angle) formed by the transmission pinhole PH of the optical layer OCL. Therefore, even without a separate light guide member to control the path of the light reflected by the fingerprint of the first input TC1, light can still be provided to the sensing panel SP.

[0189] Figure 8 and Figure 12The fingerprint sensing pixel FSX shown in FIG can sense light reflected from different areas of the fingerprint and can generate an electrical signal corresponding to the sensed light. Each fingerprint sensing pixel FSX can generate an electrical signal corresponding to light reflected from the ridges of the fingerprint, or can generate an electrical signal corresponding to light reflected from the valleys between the ridges of the fingerprint. Figure 12 ) can differ in the amount of light sensed depending on the shape of the fingerprint through which the light is reflected, and can generate electrical signals having different levels depending on the amount of light sensed. For example, each of the fingerprint reception signals FR1 to FRj from the fingerprint sensing pixel FSX may include contrast information (or image information), and the fingerprint readout circuit ROC can perform processing operations on the fingerprint reception signals FR1 to FRj to determine whether the area corresponding to each fingerprint sensing pixel FSX is a ridge or a valley, and can form an overall fingerprint image by combining the determined information.

[0190] Figure 13B It shows Figure 13A A cross-sectional view of the display device shown in FIG.

[0191] Reference Figure 13A and Figure 13B The shape and size of each of the fingerprint input areas FIA1 and FIA2 and each of the optical sensing areas OSA1 and OSA2 corresponding to the transmissive pinhole PH can be determined based on the distance (object distance) OD between the window member WM and the optical layer OCL, the distance (image distance) ID between the optical layer OCL and the sensing panel SP, the thickness T of the optical layer OCL, the diameter DI of the transmissive pinhole PH, and the shape of the transmissive pinhole PH. The fingerprint input areas FIA1 and FIA2 and the optical sensing areas OSA1 and OSA2 may correspond to the transmissive pinholes PH1 and PH2, respectively. In example embodiments, the sensing base layer SBL may include the optical sensing areas OSA1 and OSA2. Each of the optical sensing areas OSA1 and OSA2 may be defined based on the viewing angle of a corresponding one of the transmissive pinholes PH1 and PH2.

[0192] like Figure 13A As shown in FIG, the transmissive pinholes PH may be arranged to be spaced apart from each other by a predetermined distance in the first direction DR1 and the second direction DR2. Figure 13B As shown in , due to the distance (ie, the interval W) between the centers of the two adjacent transmissive pinholes PH1 and PH2 , a non-optical sensing area NOSA may exist between the two adjacent optical sensing areas OSA1 and OSA2 .

[0193] Figure 13Cis a view showing fingerprint sensing pixels, an optical sensing area, and a fingerprint sensing block of a sensing panel.

[0194] Reference 13A to 13C , an optical sensing area OSA can be defined in the sensing base layer SBL and the sensing layer SL by the transmissive pinhole PH. The optical area SA of the sensing panel SP (refer to Figure 7 ) may include a fingerprint sensing area FSA that can sense a fingerprint and a non-fingerprint sensing area NFSA defined adjacent to the fingerprint sensing area FSA. The non-optical sensing area NOSA (refer to Figure 13B ) may overlap with the non-fingerprint sensing area NFSA. One optical sensing area OSA may overlap with a plurality of fingerprint sensing pixels FSX of the fingerprint sensing area FSA. In the following description, the fingerprint sensing pixels FSX overlapping with the optical sensing area OSA will be referred to as a "fingerprint sensing block" FSB, which may also be referred to as an area of ​​the sensing base layer SBL. The fingerprint sensing block FSB may have an area equal to or greater than that of the optical sensing area OSA. For example, each fingerprint sensing block FSB may include four fingerprint sensing pixels FSX arranged in a first direction DR1 and four fingerprint sensing pixels FSX arranged in a second direction DR2. As shown in FIG. Figure 13A and Figure 13B As described above, the number of fingerprint sensing pixels included in a fingerprint sensing block can be determined based on the size of the optical sensing area OSA, which is determined by the distance OD between the window member WM and the optical layer OCL, the distance ID between the optical layer OCL and the sensing panel SP, the thickness T of the optical layer OCL, the diameter DI of the transmissive pinhole PH, and the shape of the transmissive pinhole PH. The size and shape of the fingerprint sensing block FSB and the number of fingerprint sensing pixels included in the fingerprint sensing block FSB are merely exemplary and can be varied in various ways. The sensing base layer SBL may include optical sensing areas OSA1 and OSA2. The optical sensing areas OSA1 and OSA2 may be defined based on the viewing angle of a corresponding one of the transmissive pinholes PH1 and PH2. The first area of ​​the sensing base layer SBL may correspond to a corresponding one of the optical sensing areas OSA1 and OSA2. The first area of ​​the sensing base layer SBL may have an area equal to or larger than the corresponding one of the optical sensing areas OSA1 and OSA2.

[0195] Therefore, the sensing panel SP may be divided into a fingerprint sensing area FSA in which the fingerprint sensing pixels FSX are arranged and a non-fingerprint sensing area NFSA in which the fingerprint sensing pixels FSX are not arranged.

[0196] Figure 14Ais a plan view showing fingerprint sensing pixels and pen sensing pixels arranged in a sensing panel. Figure 14B 1 is a plan view showing fingerprint scanning lines, fingerprint receiving lines, pen scanning lines, pen transmission lines, and pen receiving lines electrically connected to fingerprint sensing pixels and pen sensing pixels arranged in a sensing panel. Figure 14A and Figure 14B , fingerprint sensing pixels FSX11 to FSX88 may be arranged in the fingerprint sensing area FSA. The fingerprint sensing block FSB11 may include sixteen fingerprint sensing pixels FSX11 to FSX14, FSX21 to FSX24, FSX31 to FSX34, and FSX41 to FSX44, the fingerprint sensing block FSB12 may include sixteen fingerprint sensing pixels FSX15 to FSX18, FSX25 to FSX28, FSX35 to FSX38, and FSX45 to FSX48, the fingerprint sensing block FSB21 may include sixteen fingerprint sensing pixels FSX51 to FSX54, FSX61 to FSX64, FSX71 to FSX74, and FSX81 to FSX84, and the fingerprint sensing block FSB22 may include sixteen fingerprint sensing pixels FSX55 to FSX58, FSX65 to FSX68, FSX75 to FSX78, and FSX85 to FSX88. As described above, Figure 14A and Figure 14B The sizes and shapes of the fingerprint sensing blocks FSB11 to FSB22 and the numbers of fingerprint sensing pixels included in the fingerprint sensing blocks FSB11 to FSB22 shown in FIG. 1 are merely exemplary and may be changed in various ways.

[0197] The pen sensing pixels PSX11 and PSX12 may be provided in the non-fingerprint sensing area NFSA. Figure 14A and Figure 14B In the exemplary embodiment shown in , the pen sensing pixel PSX11 may be provided in the non-fingerprint sensing area NFSA adjacent to the upper left corner of the corresponding fingerprint sensing pixel FSX11 among the fingerprint sensing pixels FSX11 to FSX88 in a first diagonal direction, and the pen sensing pixel PSX12 may be provided in the non-fingerprint sensing area NFSA adjacent to the upper left corner of the corresponding fingerprint sensing pixel FSX15 among the fingerprint sensing pixels FSX11 to FSX88 in the first diagonal direction and adjacent to the upper right corner of the corresponding fingerprint sensing pixel FSX14 among the fingerprint sensing pixels FSX11 to FSX44 in a second diagonal direction different from the first diagonal direction. However, this is merely exemplary, and each of the pen sensing pixels PSX11 and PSX12 may be provided at any position adjacent to the corresponding fingerprint sensing pixel FSX11 to FSX88 in the non-fingerprint sensing area NFSA.

[0198] in addition, Figure 10 A first switching transistor PST1 and a second switching transistor PST2 may be provided in each of the pen sensing pixels PSX11 and PSX12 . Figure 10 Each of the sensing coils LL1 and LL2 may be provided in a non-fingerprint sensing area NFSA located around at least one of the fingerprint sensing blocks FSB11 to FSB22. For example, the pen sensing pixel PSX11 and the sensing coil LL1 connected thereto may correspond to Figure 10 The pen sensing pixel PSXab shown in FIG, and the pen sensing pixel PSX12 and the sensing coil LL2 connected thereto may correspond to Figure 10 The pen sensing pixel PSXab is shown.

[0199] The sensing coil LL1 may be arranged in a spiral shape around the fingerprint sensing blocks FSB11 and FSB21 in a non-fingerprint sensing area NFSA. One end of the sensing coil LL1 may be electrically connected to the pen sensing pixel PSX11, and the other end of the sensing coil LL1 may be connected to the ground voltage terminal VSS. The sensing coil LL2 may be arranged in a spiral shape around the fingerprint sensing blocks FSB12 and FSB22 in a non-fingerprint sensing area NFSA. One end of the sensing coil LL2 may be electrically connected to the pen sensing pixel PSX12, and the other end of the sensing coil LL2 may be connected to the ground voltage terminal VSS. In an example embodiment, a portion of the sensing coil LL1 may be directly adjacent to the fingerprint sensing pixel FSX11 of the fingerprint sensing block FSB11. In an example embodiment, a portion of the sensing coil LL2 may be directly adjacent to the fingerprint sensing pixel FSX15 of the fingerprint sensing block FSB12.

[0200] In an exemplary embodiment, each of the sensing coils LL1 and LL2 may have a line width of approximately 480 μm, and the distance between the respective lines may be approximately 480 μm. In addition, the line VSSL connected between the ground voltage terminal VSS and the sensing coils LL1 and LL2 may be provided on a layer different from the layer on which the spiral lines LL1a and LL2a are provided, and may be insulated from the spiral lines LL1a and LL2a.

[0201] As described above, since the pen sensing pixels PSX11 and PSX12 and the fingerprint sensing pixels FSX11 to FSX88 are provided in the sensing panel SP, the first touch TC1 (refer to FIG. Figure 1 ) fingerprint and due to the second touch TC2 (refer to Figure 1) pen input. In addition, since the pen sensing pixels PSX11 and PSX12 and the sensing coils LL1 and LL2 are provided in the non-fingerprint sensing area NFSA, the resolution of the fingerprint sensing pixels FSX11 to FSX88 is not reduced due to the presence of the pen sensing pixels PSX11 and PSX12.

[0202] like Figure 14B As shown in , the pen scan lines PSL1 and PSL2, the pen transmission lines PTL1 and PTL2, and the pen receiving lines PRL1 and PRL2 can be disposed adjacent to the pen sensing pixels PSX11 and PSX12. The fingerprint scan lines FSL1 to FSL8 and the fingerprint receiving lines FRL1 to FRL8 can be disposed adjacent to the fingerprint sensing pixels FSX11 to FSX88.

[0203] The pen scan lines PSL1 and PSL2 , the pen transmission lines PTL1 and PTL2 , the pen reception lines PRL1 and PRL2 , the fingerprint scan lines FSL1 to FSL8 , and the fingerprint reception lines FRL1 to FRL8 may be insulated from each other and from the sensing coils LL1 and LL2 .

[0204] Figure 15 、 Figure 16A 、 Figure 16B 、 Figure 17A 、 Figure 17B 、 Figure 18A 、 Figure 18B 、 Figure 20A as well as Figure 20B is a circuit diagram illustrating a pen sensing pixel according to an exemplary embodiment of the present disclosure.

[0205] exist Figure 15 、 Figure 16A 、 Figure 16B 、 Figure 17A 、 Figure 17B 、 Figure 18A 、 Figure 18B 、 Figure 20A as well as Figure 20B In the Figure 10 , and thus a detailed description of the same elements will be omitted.

[0206] Reference Figure 15 The pen sensing pixel PSXab1 may include a first switching transistor PST1, a second switching transistor PST2, a capacitor C, and a sensing coil LL. Figure 10 The pen sensing pixel PSXab shown in FIG is different. Figure 15The pen sensing pixel PSXab1 shown in FIG may further include a capacitor C. One end of the capacitor C may be connected to the first power line PL1 receiving the power voltage VDD, and the other end of the capacitor C may be connected to the gate electrode of the second switching transistor PST2 .

[0207] In an exemplary embodiment, each of the first and second switching transistors PST1 and PST2 may be a PMOS transistor, however, it should not be limited thereto or thereby. In an exemplary embodiment, each of the first and second switching transistors PST1 and PST2 may be an NMOS transistor.

[0208] Reference Figure 16A The pen sensing pixel PSXab21 may include a first switching transistor PST1, a second switching transistor PST2, a third switching transistor PST3, and a sensing coil LL. Figure 10 Compared with the pen sensing pixel PSXab shown in Figure 16A The pen sensing pixel PSXab21 shown in the figure may also include a third switching transistor PST3. The third switching transistor PST3 may include a first electrode receiving the second power supply voltage VDD2, a second electrode connected to the ground voltage terminal VSS, and a gate electrode connected to the second electrode of the second switching transistor PST2. The second electrode of the third switching transistor PST3 may also be connected to the pen receiving line PRLb. The third switching transistor PST3 can be turned on or off in response to a signal from one end of the sensing coil LL. One end of the sensing coil LL can be connected to the second electrode of the second switching transistor PST2, and the other end of the sensing coil LL can be connected to the ground voltage terminal VSS. In an exemplary embodiment, the power supply voltage VDD and the second power supply voltage VDD2 are described as being different from each other, however, they should not be limited to or thereby. The power supply voltage VDD and the second power supply voltage VDD2 may have substantially the same voltage level.

[0209] Reference Figure 16B The pen sensing pixel PSXab22 may include a first switching transistor PST1, a second switching transistor PST2, a third switching transistor PST3, a capacitor C, and a sensing coil LL. Figure 16A The pen sensing pixel PSXab21 shown in FIG is different. Figure 16B The pen sensing pixel PSXab22 shown in FIG may further include a capacitor C. One end of the capacitor C may be connected to the first power line PL1 receiving the power voltage VDD, and the other end of the capacitor C may be connected to the gate electrode of the second switching transistor PST2 .

[0210] Reference Figure 17AThe pen sensing pixel PSXab31 may include a first switching transistor PST1, a second switching transistor PST2, a third switching transistor PST3, and a sensing coil LL. Figure 10 Compared with the pen sensing pixel PSXab shown in Figure 17A The pen sensing pixel PSXab31 shown in FIG may further include a third switching transistor PST3. One end of the sensing coil LL may be connected to the second electrode of the second switching transistor PST2, and the other end of the sensing coil LL may be connected to the ground voltage terminal VSS. The third switching transistor PST3 may include a first electrode connected to one end of the sensing coil LL, a second electrode connected to the pen receiving line PRLb, and a gate electrode connected to the enable signal line ENLa. The third switching transistor PST3 may be turned on or off in response to an enable signal ENa applied thereto via the enable signal line ENLa.

[0211] Reference Figure 17B The pen sensing pixel PSXab32 may include a first switching transistor PST1, a second switching transistor PST2, a third switching transistor PST3, a capacitor C, and a sensing coil LL. Figure 17A The pen sensing pixel PSXab31 shown in FIG is different. Figure 17B The pen sensing pixel PSXab32 shown in FIG may further include a capacitor C. One end of the capacitor C may be connected to the first power line PL1 receiving the power voltage VDD, and the other end of the capacitor C may be connected to the gate electrode of the second switching transistor PST2 .

[0212] Figure 19 It shows Figure 17A : A timing diagram of the operation of the pen sensing pixel PSXab31 is shown in FIG.

[0213] Reference Figure 17A and Figure 19 , when a pen scan signal PSa having an effective level (e.g., a low level) is applied to the pen scan line PSLa during the transmission period TX, the first switching transistor PST1 can be turned on. For example, when a predetermined pen transmission signal PTb is applied to the pen transmission line PTLb, the second switching transistor PST2 can be repeatedly turned on and off by the pen transmission signal PTb, and thus, current can flow through the sensing coil LL, thereby forming a magnetic field. The size of the resonant signal sensed at one end of the sensing coil LL can change according to the presence or absence of the second input TC2. When the third switching transistor PST3 is turned on in response to the enable signal ENa having an effective level (e.g., a low level) during the transmission period TX, the pen sensing circuit PSC (reference Figure 8) can receive the resonant signal at one end of the sensing coil LL via the pen receiving line PRLb as a pen receiving signal PRb. Figure 8 ) receives the pen reception signal PRb only when the third switching transistor PST3 is turned on in response to the enable signal ENa, and thus the influence caused by noise can be minimized.

[0214] Reference Figure 18A The pen sensing pixel PSXab41 may include a first switching transistor PST1, a second switching transistor PST2, a third switching transistor PST3, a fourth switching transistor PST4, and a sensing coil LL. Figure 10 Compared with the pen sensing pixel PSXab shown in Figure 18A The pen sensing pixel PSXab41 shown in the figure may also include a third switching transistor PST3 and a fourth switching transistor PST4. One end of the sensing coil LL can be connected to the second electrode of the second switching transistor PST2, and the other end of the sensing coil LL can be connected to the ground voltage terminal VSS. The third switching transistor PST3 may include a first electrode receiving the second power supply voltage VDD2, a second electrode, and a gate electrode connected to one end of the sensing coil LL. The fourth switching transistor PST4 may include a first electrode connected to the second electrode of the third switching transistor PST3, a second electrode connected to the pen receiving line PRLb, and a gate electrode connected to the enable signal line ENLa. The third switching transistor PST3 can be turned on or off in response to the resonant signal at one end of the sensing coil LL. The fourth switching transistor PST4 can be turned on or off in response to the enable signal ENa applied thereto via the enable signal line ENLa.

[0215] Reference Figure 18B The pen sensing pixel PSXab42 may include a first switching transistor PST1, a second switching transistor PST2, a third switching transistor PST3, a fourth switching transistor PST4, a capacitor C, and a sensing coil LL. Figure 18A The pen sensing pixel PSXab41 shown in FIG is different. Figure 18B The pen sensing pixel PSXab42 shown in FIG may further include a capacitor C. One end of the capacitor C may be connected to the first power line PL1 receiving the power voltage VDD, and the other end of the capacitor C may be connected to the gate electrode of the second switching transistor PST2 .

[0216] Reference Figure 20A The pen sensing pixel PSXab51 may include a first switching transistor PST1, a second switching transistor PST2, a third switching transistor PST3, a fourth switching transistor PST4, a fifth switching transistor PST5, a first capacitor C1, and a sensing coil LL. Figure 10Compared with the pen sensing pixel PSXab shown in Figure 20A The pen sensing pixel PSXab51 shown in the figure may also include a third switching transistor PST3, a fourth switching transistor PST4, and a fifth switching transistor PST5, as well as a first capacitor C1. One end of the sensing coil LL may be connected to the second electrode of the second switching transistor PST2, and the other end of the sensing coil LL may be connected to the ground voltage terminal VSS. The third switching transistor PST3 may include a first electrode receiving the second power supply voltage VDD2, a second electrode connected to one end of the sensing coil LL, and a gate electrode receiving the reset signal RST. The fourth switching transistor PST4 may include a first electrode receiving the second power supply voltage VDD2, a second electrode, and a gate electrode connected to one end of the sensing coil LL. The fifth switching transistor PST5 may include a first electrode connected to the second electrode of the fourth switching transistor PST4, a second electrode connected to the pen receiving line PRLb, and a gate electrode connected to the enable signal line ENLa. The first capacitor C1 may be connected between one end of the sensing coil LL and the ground voltage terminal VSS.

[0217] The third switching transistor PST3 can be turned on or off in response to the reset signal RST. The fourth switching transistor PST can be turned on or off in response to the resonant signal at one end of the sensing coil LL. The fifth switching transistor PST5 can be turned on or off in response to the enable signal ENa applied thereto via the enable signal line ENLa.

[0218] Reference Figure 20B The pen sensing pixel PSXab52 may include a first switching transistor PST1, a second switching transistor PST2, a third switching transistor PST3, a fourth switching transistor PST4, a fifth switching transistor PST5, a first capacitor C1, a second capacitor C2, and a sensing coil LL. Figure 20A The pen sensing pixel PSXab51 shown in the figure is different. Figure 20B The pen sensing pixel PSXab52 shown in FIG may further include a second capacitor C2. One end of the second capacitor C2 may be connected to the first power line PL1 receiving the power voltage VDD, and the other end of the second capacitor C2 may be connected to the gate electrode of the second switching transistor PST2.

[0219] Reference Figure 20A and Figure 21, when a pen scan signal PSa having a valid level (e.g., a low level) is applied to the pen scan line PSLa during the transmission period TX, the first switching transistor PST1 can be turned on. For example, when a predetermined pen transmission signal PTb is applied to the pen transmission line PTLb, the second switching transistor PST2 can be repeatedly turned on and off by the pen transmission signal PTb, and thus, current can flow through the sensing coil LL, thereby forming a magnetic field. The size of the resonant signal sensed at one end of the sensing coil LL can change according to the presence or absence of the second input TC2. The fourth switching transistor PST4 can be repeatedly turned on and off during the receiving period RX according to the level of the resonant signal. When the fifth switching transistor PST5 is turned on in response to the enable signal ENa having a valid level (e.g., a low level), the pen sensing circuit PSC (reference Figure 8 ) can receive the resonance signal at one end of the sensing coil LL via the pen reception line PRLb as a pen reception signal PRb.

[0220] Before the reception period RX starts, at the rear of the transmission period TX, the reset signal RST may become an active level, for example, a low level. The third switching transistor PST3 of the pen sensing pixel PSXab51 may apply the second power supply voltage VDD2 to one end of the sensing coil LL in response to the reset signal RST, and thus, the resonant signal at one end of the sensing coil LL may be reset. In addition, since the pen sensing circuit PSC (refer to Figure 8 ) receives the pen reception signal PRb only when the third switching transistor PST3 is turned on in response to the enable signal ENa, and thus the influence caused by noise can be minimized.

[0221] exist Figure 15 、 Figure 16A 、 Figure 16B 、 Figure 17A 、 Figure 17B 、 Figure 18A 、 Figure 18B 、 Figure 20A as well as Figure 20B In the exemplary embodiment shown in , each of the first to fifth switching transistors PST1 to PST5 may be a PMOS transistor, however, it should not be limited thereto or thereby. According to another embodiment, each of the first to fifth switching transistors PST1 to PST5 may be an NMOS transistor.

[0222] Figure 22 is an enlarged cross-sectional view illustrating a display unit DU according to an exemplary embodiment of the present disclosure.

[0223] Reference Figure 22The display unit DU may include a base layer BL, a circuit element layer DP-CL, a display element layer DP-OLED, and an upper insulating layer TFL. The display unit DU may include multiple insulating layers, semiconductor patterns, conductive patterns, and signal lines. The insulating layers, semiconductor layers, and conductive layers may be formed through coating or deposition processes. The insulating layers, semiconductor layers, and conductive layers may then be selectively patterned through a photolithography process. The semiconductor patterns, conductive patterns, and signal lines included in the circuit element layer DP-CL and the display element layer DP-OLED may be formed through the aforementioned processes.

[0224] The base layer BL may include a synthetic resin film. The synthetic resin film may include a thermosetting resin. The base layer BL may have a multilayer structure. For example, the base layer BL may have a three-layer structure including a synthetic resin layer, an adhesive layer, and a synthetic resin layer. In example embodiments, the synthetic resin layer may be a polyimide resin layer, however, this should not be particularly limited. The synthetic resin layer may include at least one of an acrylic resin, a methacrylic resin, polyisoprene, a vinyl resin, an epoxy resin, a polyurethane resin, a cellulose resin, a siloxane resin, a polyamide resin, and a perylene resin. In addition, the base layer BL may include a glass substrate, a metal substrate, or an organic / inorganic composite substrate.

[0225] At least one inorganic layer may be formed on the upper surface of the base layer BL. The inorganic layer may include at least one of aluminum oxide, titanium oxide, silicon oxide, silicon oxynitride, zirconium oxide, and hafnium oxide. The inorganic layer may have a multilayer structure. The inorganic layer may form a barrier layer and / or a buffer layer. In this exemplary embodiment, the display unit DU is shown as including a buffer layer BFL.

[0226] The buffer layer BFL may increase adhesion between the base layer BL and the semiconductor pattern. The buffer layer BFL may include a silicon oxide layer and a silicon nitride layer. The silicon oxide layer and the silicon nitride layer may be alternately stacked with each other.

[0227] The semiconductor pattern may be disposed on the buffer layer BFL. The semiconductor pattern may include polysilicon, however, it should not be limited thereto or thereby. The semiconductor pattern may include amorphous silicon or metal oxide.

[0228] Figure 22 A portion of a semiconductor pattern is shown, and in a plan view, the semiconductor pattern may be further disposed in another region of the pixel PX. The semiconductor pattern may be arranged in a specific pattern above the pixel PX. The semiconductor pattern may have electrical characteristics that vary depending on the presence or absence of a dopant. The semiconductor pattern may include doped regions and undoped regions. The doped regions may be doped with an N-type dopant or a P-type dopant. A P-type transistor may include a doped region doped with a P-type dopant.

[0229] The doped region may have a conductivity greater than that of the non-doped region and may be substantially used as an electrode or a signal line. The non-doped region may substantially correspond to an active region (or channel) of a transistor. For example, a portion of the semiconductor pattern may be used as the active region (or channel) of the transistor, another portion of the semiconductor pattern may be used as the source or drain of the transistor, and the remaining portion of the semiconductor pattern may be used as a connection electrode or a connection signal line.

[0230] like Figure 22 As shown in , the source S1, active area A1, and drain D1 of the first transistor T1 may be formed of a semiconductor pattern, and the source S2, active area A2, and drain D2 of the second transistor T2 may be formed of a semiconductor pattern. The source S1 and the drain D1 may extend in opposite directions from the active area A1 in a cross section, and the source S2 and the drain D2 may extend in opposite directions from the active area A2 in the cross section. Figure 22 A portion of a connection signal line CCL formed of a semiconductor pattern is shown. Although not separately shown, the connection signal line CCL may be connected to the drain D2 of the second transistor T2 in a plan view.

[0231] A first insulating layer 10 may be provided on the buffer layer BFL. The first insulating layer 10 may be provided in common with the pixel PX (refer to FIG. Figure 5 ) overlap and may cover the semiconductor pattern. The first insulating layer 10 may include an inorganic layer and / or an organic layer and may have a single-layer or multi-layer structure. The first insulating layer 10 may include at least one of aluminum oxide, titanium oxide, silicon oxide, silicon oxynitride, zirconium oxide, and hafnium oxide. In this exemplary embodiment, the first insulating layer 10 may have a single silicon oxide layer. The insulating layer of the circuit element layer DP-CL described later may include an inorganic layer and / or an organic layer and may have a single-layer or multi-layer structure as the first insulating layer 10. The inorganic layer may include at least one of the above materials.

[0232] Gates G1 and G2 may be disposed on the first insulating layer 10. Gates G1 and G2 may be part of a metal pattern. Gates G1 and G2 may overlap active areas A1 and A2, respectively. Gates G1 and G2 may be used as masks in a process of doping a semiconductor pattern.

[0233] The second insulating layer 20 may be provided on the first insulating layer 10 to cover the gates G1 and G2. The second insulating layer 20 may be provided in common with the pixel PX (refer to FIG. Figure 5 ) overlap. The second insulating layer 20 may include an inorganic layer and / or an organic layer and may have a single layer or multilayer structure. In this exemplary embodiment, the second insulating layer 20 may include a single silicon oxide layer.

[0234] The upper electrode UE may be disposed on the second insulating layer 20. The upper electrode UE may overlap the gate G2 of the second transistor T2. The upper electrode UE may be a portion of the metal pattern. A portion of the gate G2 and the upper electrode UE overlapping the portion of the gate G2 may form a capacitor CP (refer to FIG. Figure 5 ). In an exemplary embodiment of the present disclosure, the upper electrode UE may be omitted.

[0235] A third insulating layer 30 may be provided on the second insulating layer 20 to cover the upper electrode UE. In the present exemplary embodiment, the third insulating layer 30 may include a single silicon oxide layer. A first connection electrode CNE1 may be provided on the third insulating layer 30. The first connection electrode CNE1 may be connected to the connection signal line CCL through a contact hole CNT-1 defined through the first insulating layer 10 to the third insulating layer 30.

[0236] A fourth insulating layer 40 may be disposed on the third insulating layer 30 to cover the first connection electrode CNE1. The fourth insulating layer 40 may include a single silicon oxide layer. A fifth insulating layer 50 may be disposed on the fourth insulating layer 40. The fifth insulating layer 50 may be an organic layer. The second connection electrode CNE2 may be disposed on the fifth insulating layer 50. The second connection electrode CNE2 may be connected to the first connection electrode CNE1 through a second contact hole CNT-2 defined through the fourth insulating layer 40 and the fifth insulating layer 50.

[0237] A sixth insulating layer 60 may be provided on the fifth insulating layer 50 to cover the second connection electrode CNE2. The sixth insulating layer 60 may be an organic layer. The first electrode AE ​​may be provided on the sixth insulating layer 60. The first electrode AE ​​may be connected to the second connection electrode CNE2 via a contact hole CNT-3 defined through the sixth insulating layer 60. An opening OP is defined through the pixel defining layer PDL. At least a portion of the first electrode AE ​​may be exposed through the opening OP of the pixel defining layer PDL.

[0238] like Figure 22 As shown in the display area DU-DA (refer to Figure 5 ) may include a light emitting region PXA and a non-light emitting region NPXA defined adjacent to the light emitting region PXA. The non-light emitting region NPXA may surround the light emitting region PXA. In this exemplary embodiment, the light emitting region PXA may be defined as a portion corresponding to the first electrode AE ​​exposed by the opening OP.

[0239] The hole control layer HCL may be disposed in both the light-emitting region PXA and the non-light-emitting region NPXA. The hole control layer HCL may include a hole transport layer and may also include a hole injection layer. The light-emitting layer EML may be disposed on the hole control layer HCL. The light-emitting layer EML may be disposed in a region corresponding to the opening OP. For example, the light-emitting layer EML may be formed in each pixel PX after being divided into a plurality of sections.

[0240] The electron control layer ECL may be provided on the light emitting layer EML. The electron control layer ECL may include an electron transport layer and may further include an electron injection layer. The hole control layer HCL and the electron control layer ECL may be formed together in the pixel using an open mask. The second electrode CE may be provided on the electron control layer ECL. The second electrode CE may have a single body and may be provided together in the pixel PX (refer to Figure 5 ) above.

[0241] like Figure 22 As shown in , the upper insulating layer TFL may be disposed on the second electrode CE. The upper insulating layer TFL may include a plurality of thin layers. For example, the upper insulating layer TFL may include a cover layer and a thin film encapsulation layer. The thin film encapsulation layer may include a first inorganic layer, an organic layer, and a second inorganic layer.

[0242] Figure 23 is an enlarged cross-sectional view illustrating a sensing panel SP according to an exemplary embodiment of the present disclosure.

[0243] Reference Figure 23 The sensing panel SP may include a sensing base layer SBL and a sensing layer SL. The sensing panel SP may include a plurality of insulating layers, semiconductor patterns, conductive patterns, and signal lines. The insulating layers, semiconductor layers, and conductive layers may be formed by coating or deposition processes. The insulating layers, semiconductor layers, and conductive layers may then be selectively patterned by a photolithography process. The semiconductor patterns, conductive patterns, and signal lines included in the sensing layer SL may be formed by the aforementioned processes.

[0244] The sensing substrate SBL may include a synthetic resin film. The synthetic resin film may include a thermosetting resin. The sensing substrate SBL may have a multilayer structure. For example, the sensing substrate SBL may have a three-layer structure including a synthetic resin layer, an adhesive layer, and a synthetic resin layer. Specifically, the synthetic resin layer may be a polyimide resin layer, but this should not be specifically limited. The synthetic resin layer may include at least one of acrylic resin, methacrylic resin, polyisoprene, vinyl resin, epoxy resin, polyurethane resin, cellulose resin, siloxane resin, polyamide resin, and perylene resin. In addition, the sensing substrate SBL may include a glass substrate, a metal substrate, or an organic / inorganic composite substrate.

[0245] At least one inorganic layer may be formed on the upper surface of the sensing base layer SBL. The inorganic layer may include at least one of aluminum oxide, titanium oxide, silicon oxide, silicon oxynitride, zirconium oxide, and hafnium oxide. The inorganic layer may have a multilayer structure of various layers. The inorganic layer may form a barrier layer and / or a buffer layer. In this exemplary embodiment, the display unit DU is shown as including a buffer layer BFL.

[0246] The buffer layer BFL2 may increase adhesion between the sensing base layer SBL and the semiconductor pattern. The buffer layer BFL2 may include a silicon oxide layer and a silicon nitride layer. The silicon oxide layer and the silicon nitride layer may be alternately stacked.

[0247] The semiconductor pattern may be disposed on the buffer layer BFL2. The semiconductor pattern may include polysilicon, but should not be limited thereto or thereby. The semiconductor pattern may include amorphous silicon or metal oxide.

[0248] Figure 23 A portion of a semiconductor pattern is shown, and in plan view, the semiconductor pattern may be further disposed in another region of the pixel PX. The semiconductor pattern may be arranged in a specific pattern above the pixel PX. The semiconductor pattern may have electrical characteristics that vary depending on the presence or absence of a dopant. The semiconductor pattern may include doped regions and undoped regions. The doped regions may be doped with an N-type dopant or a P-type dopant. A P-type transistor may include a doped region doped with a P-type dopant.

[0249] The doped region may have a conductivity greater than that of the non-doped region and may be substantially used as an electrode or a signal line. The non-doped region may substantially correspond to an active region (or channel) of a transistor. For example, a portion of the semiconductor pattern may be used as the active region of the transistor, another portion of the semiconductor pattern may be used as the source or drain of the transistor, and the remaining portion of the semiconductor pattern may be used as a connection electrode or a connection signal line.

[0250] like Figure 13C and Figure 23 As shown in FIG, the sensing area SA of the sensing panel SP (refer to FIG. Figure 7 ) may include a fingerprint sensing area FSA and a non-fingerprint sensing area NFSA defined adjacent to the fingerprint sensing area FSA. The non-fingerprint sensing area NFSA may surround the fingerprint sensing area FSA. In this exemplary embodiment, Figure 12 The elements of the fingerprint sensing pixel FSXcd shown in FIG. 5 may be arranged in the fingerprint sensing area FSA. Figure 10 The elements of the pen sensing pixel PSXab shown in FIG. 4 may be arranged in the non-fingerprint sensing area NFSA.

[0251] like Figure 10 、 Figure 12 and Figure 23 As shown in FIG, the source FS, active area FA, and drain FD of the switching transistor ST in the fingerprint sensing pixel FSXcd may be formed from a semiconductor pattern, and the source PS2, active area PA2, and drain PD2 of the second switching transistor PST2 in the pen sensing pixel PSXab may be formed from a semiconductor pattern. The source FS and drain FD may extend in opposite directions from the active area FA in a cross section, and the source PS2 and drain PD2 may extend in opposite directions from the active area PA2 in a cross section.

[0252] The first insulating layer 10-1 may be disposed on the buffer layer BFL2. The first insulating layer 10-1 may be disposed in conjunction with the fingerprint sensing pixel FSX (refer to FIG. Figure 7 ) and pen sensing pixels PSX (refer to Figure 7 ) overlap and may cover the semiconductor pattern. The first insulating layer 10-1 may include an inorganic layer and / or an organic layer and may have a single layer or a multilayer structure. The first insulating layer 10-1 may include at least one of aluminum oxide, titanium oxide, silicon oxide, silicon oxynitride, zirconium oxide, and hafnium oxide. In this exemplary embodiment, the first insulating layer 10-1 may have a single silicon oxide layer. The insulating layer of the sensing layer SL described later may include an inorganic layer and / or an organic layer and may have a single layer or a multilayer structure as the first insulating layer 10-1. The inorganic layer may include at least one of the above materials.

[0253] Gates FG and PG2 may be disposed on the first insulating layer 10-1. Gates FG and PG2 may be part of a metal pattern. Gates FG and PG2 may overlap with active areas FA and PA2, respectively. Gates FG and PG2 may serve as masks in the process of doping the semiconductor pattern. Capacitor electrode CE1 may be disposed on the first insulating layer 10-1, spaced apart from gates FG and PG2. Capacitor electrode CE1 may overlap with the first electrode E1 of the photodiode PD. Capacitor electrode CE1 may be part of a metal pattern.

[0254] A portion of the first electrode E1 of the photodiode PD and the capacitor electrode CE1 overlapping the portion of the first electrode E1 may form a capacitor CST (refer to FIG. Figure 11 ).

[0255] The second insulating layer 20-1 may be provided on the first insulating layer 10-1 to cover the gate electrodes FG and PG2 and the capacitor electrode CE1. The second insulating layer 20-1 may be provided in conjunction with the fingerprint sensing pixel FSX (refer to FIG. Figure 7 ) and pen sensing pixels PSX (refer to Figure 7) overlap. The second insulating layer 20-1 may include an inorganic layer and / or an organic layer and may have a single layer or multi-layer structure. In the present exemplary embodiment, the second insulating layer 20-1 may include a single silicon oxide layer.

[0256] The first electrode E1 may be disposed on the second insulating layer 20-1 and connected to the drain electrode FD of the switching transistor ST through a contact hole CNT-11 defined through the first insulating layer 10-1 and the second insulating layer 20-1.

[0257] An N-type layer (NPL), whose primary charge carriers are electrons, may be disposed on the first electrode E1. A photoelectric conversion layer (OTL) may be disposed on the N-type layer (NPL). The photoelectric conversion layer (OTL) may generate charge in response to external light. For example, the photoelectric conversion layer (OTL) may selectively absorb only light having a specific wavelength band to induce photoelectric conversion. A P-type layer (PPL), whose primary charge carriers are holes, may be disposed on the photoelectric conversion layer (OTL). The second electrode (E2) may be disposed on the P-type layer (PPL).

[0258] The first electrode E1 and the second electrode E2 may be formed of a transparent conductive oxide. For example, the first electrode E1 and the second electrode E2 may include at least one material selected from the group consisting of indium tin oxide (ITO), indium zinc oxide (IZO), zinc oxide (ZnO), SnO2, antimony-doped tin oxide (ATO), Al-doped zinc oxide (AZO), gallium-doped zinc oxide (GZO), TiO2, and fluorine-doped tin oxide (FTO).

[0259] The third insulating layer 30-1 may be provided on the second insulating layer 20-1 to cover the second electrode E2. Figure 12 ), the second voltage line PL22 (refer to Figure 12 ), the first voltage line PL21 (refer to Figure 12 ), pen receiving line PRLb (refer to Figure 10 ) and the first power line PL1 (see Figure 10 ) may be provided on the third insulating layer 30 - 1 .

[0260] The fingerprint receiving line FRLd may be connected to the source FS of the switching transistor ST through a contact hole CNT-10 defined through the first insulating layer 10-1, the second insulating layer 20-1, and the third insulating layer 30-1.

[0261] The second voltage line PL22 may be connected to the second electrode E2 through a contact hole CNT-12 defined through the third insulating layer 30-1.

[0262] The first voltage line PL21 may be connected to the capacitor electrode CE1 through a contact hole CNT-13 defined through the third insulating layer 30-1.

[0263] The pen receiving line PRLb may be connected to the drain electrode PD2 of the second switching transistor PST2 through a contact hole CNT-14 defined through the first insulating layer 10-1, the second insulating layer 20-1, and the third insulating layer 30-1. Although not shown in the drawings, the pen receiving line PRLb may be connected to one end of the sensing coil LL (refer to FIG. Figure 10 ).

[0264] The first power line PL1 may be connected to the source PS2 of the second switching transistor PST2 through a contact hole CNT-15 defined through the first insulating layer 10-1, the second insulating layer 20-1, and the third insulating layer 30-1.

[0265] The fourth insulating layer 40-1 may be disposed on the third insulating layer 30-1 to cover the fingerprint receiving line FRLd, the second voltage line PL22, the first voltage line PL21, the pen receiving line PRLb, and the first power line PL1. Figure 23 In the exemplary embodiment shown in , the switching transistor ST, photodiode PD, fingerprint receiving line FRLd, first voltage line PL21 and second voltage line PL22 of the fingerprint sensing pixel FSXcd can be insulated from the second switching transistor PST2, pen receiving line PRLb and first power line PL1 of the pen sensing pixel PSXab.

[0266] Although exemplary embodiments of the present disclosure have been described, it will be understood that the present disclosure should not be limited to these exemplary embodiments, but rather that various changes and modifications may be made by those skilled in the art within the spirit and scope of the present disclosure as claimed below. Therefore, the disclosed subject matter should not be limited to any single embodiment described herein, and the scope of the inventive concept should be determined based on the present disclosure.

Claims

1. A sensing panel, wherein: The sensing panel includes: Sensing base layer; a first group of fingerprint sensing pixels, the first group of fingerprint sensing pixels being arranged on a first area of ​​the sensing substrate and connected to a plurality of fingerprint scanning lines and a plurality of first fingerprint receiving lines; a plurality of pen sensing pixels, including a first pen sensing pixel, the first pen sensing pixel being disposed on a second area of ​​the sensing substrate and connected to a pen scanning line, a first pen transmission line, and a first pen receiving line, the second area being adjacent to and surrounding the first area; and a first sensing coil, the first sensing coil being disposed on the second area of ​​the sensing substrate and surrounding the first area of ​​the sensing substrate on which the first group of fingerprint sensing pixels is disposed; The first fingerprint sensing pixel is adjacent to the first fingerprint sensing pixel in the first group of fingerprint sensing pixels. wherein the first sensing coil intersects the plurality of fingerprint scanning lines in an insulated manner, and the first sensing coil intersects the plurality of first fingerprint receiving lines in an insulated manner, One end of the first sensing coil is electrically connected to a ground voltage terminal, and the other end of the first sensing coil is electrically connected to the first sensing pixel.

2. The sensor panel according to claim 1, in, The first group of fingerprint sensing pixels includes x fingerprint sensing pixels arranged in a first direction and y fingerprint sensing pixels arranged in a second direction different from the first direction, where x is a positive integer and y is a positive integer.

3. The sensing panel according to claim 2, wherein: The sensing panel further includes: a second group of fingerprint sensing pixels, the second group of fingerprint sensing pixels being arranged on a third area of ​​the sensing substrate and connected to the plurality of fingerprint scanning lines and the plurality of second fingerprint receiving lines, The plurality of pen sensing pixels further include a second pen sensing pixel, the second pen sensing pixel being disposed on a fourth area of ​​the sensing substrate and connected to the pen scanning line, the second pen transmission line, and the second pen receiving line, the fourth area being adjacent to and surrounding the third area; and a second sensing coil, the second sensing coil being disposed on the fourth area of ​​the sensing substrate and surrounding the third area of ​​the sensing substrate on which the second group of fingerprint sensing pixels is disposed, and Wherein, the second sensing coil is connected to the second sensing pixel, and The second pen sensing pixel is directly adjacent to the second fingerprint sensing pixel in the second group of fingerprint sensing pixels.

4. The sensing panel according to claim 1, in, The first sensing coil is arranged in a spiral shape, and The first region of the sensing substrate is disposed within the first spiral sensing coil.

5. The sensing panel according to claim 2, in, The first region of the sensing substrate on which the first group of fingerprint sensing pixels are disposed is configured to receive external light. The sensing panel according to claim 1 , wherein: The sensing panel further includes: A sensing scan driving circuit is configured to apply a sensing scan signal to the plurality of fingerprint scan lines and the pen scan lines.

7. The sensing panel according to claim 3, wherein: The sensing panel further includes: Fingerprint scanning drive circuit; and Pen scanning drive circuit, wherein the plurality of fingerprint scanning lines are connected to the first group of fingerprint sensing pixels and the second group of fingerprint sensing pixels, The pen scanning line is connected to the first pen sensing pixel and the second pen sensing pixel, The fingerprint scanning driving circuit is configured to apply a plurality of fingerprint scanning signals to the plurality of fingerprint scanning lines, and The pen scan driving circuit is configured to apply a pen scan signal to the pen scan line.

8. The sensing panel according to claim 7, in, The sensing substrate comprises: a sensing area, the sensing area including the first area on which the first group of fingerprint sensing pixels are arranged and the second area on which the first pen sensing pixels are arranged, The fingerprint scanning drive circuit is provided on an area of ​​the sensing substrate adjacent to the first side of the sensing area, and The pen scanning driving circuit is arranged on an area of ​​the sensing substrate adjacent to a second side of the sensing area, and the second side is opposite to the first side.

9. A display device, wherein: The display device includes: a display panel including an input sensor configured to sense an external input and a display including pixels; a sensing panel provided on one surface of the display panel to sense fingerprints and pen input; and a control circuit configured to control the sensing panel and receive a plurality of fingerprint reception signals and a plurality of pen reception signals from the sensing panel, The sensing panel includes: Sensing base layer; a first group of fingerprint sensing pixels, the first group of fingerprint sensing pixels being arranged on a first area of ​​the sensing substrate and connected to a plurality of fingerprint scanning lines and a plurality of first fingerprint receiving lines; a plurality of pen sensing pixels, including a first pen sensing pixel, the first pen sensing pixel being disposed on a second area of ​​the sensing substrate and connected to a pen scanning line, a first pen transmission line, and a first pen receiving line, the second area being adjacent to and surrounding the first area; and a first sensing coil, the first sensing coil being disposed on the second area of ​​the sensing substrate and surrounding the first area of ​​the sensing substrate on which the first group of fingerprint sensing pixels is disposed; The first fingerprint sensing pixel is adjacent to the first fingerprint sensing pixel in the first group of fingerprint sensing pixels. wherein the first sensing coil intersects the plurality of fingerprint scanning lines in an insulated manner, and the first sensing coil intersects the plurality of first fingerprint receiving lines in an insulated manner, One end of the first sensing coil is electrically connected to a ground voltage terminal, and the other end of the first sensing coil is electrically connected to the first sensing pixel.

10. The display device according to claim 9, in, The first group of fingerprint sensing pixels includes x fingerprint sensing pixels arranged in a first direction and y fingerprint sensing pixels arranged in a second direction different from the first direction, where x is a positive integer and y is a positive integer.

11. The display device according to claim 10, wherein: The sensing panel further includes: a second group of fingerprint sensing pixels, the second group of fingerprint sensing pixels being arranged on a third area of ​​the sensing substrate and connected to the plurality of fingerprint scanning lines and the plurality of second fingerprint receiving lines, The plurality of pen sensing pixels further include a second pen sensing pixel, the second pen sensing pixel being disposed on a fourth area of ​​the sensing substrate and connected to the pen scanning line, the second pen transmission line, and the second pen receiving line, the fourth area being adjacent to and surrounding the third area; and a second sensing coil, the second sensing coil being disposed on the fourth area of ​​the sensing substrate and surrounding the third area of ​​the sensing substrate on which the second group of fingerprint sensing pixels is disposed, and Wherein, the second sensing coil is connected to the second sensing pixel, and The second pen sensing pixel is directly adjacent to the second fingerprint sensing pixel in the second group of fingerprint sensing pixels.

12. The display device according to claim 9, in, The first sensing coil is arranged in a spiral shape, and The first region of the sensing substrate is disposed within the first spiral sensing coil.

13. The display device according to claim 10, in, The first region of the sensing substrate on which the first group of fingerprint sensing pixels are disposed is configured to receive external light.

14. The display device according to claim 9, wherein The sensing panel further includes: A sensing scan driving circuit is configured to apply a sensing scan signal to the plurality of fingerprint scan lines and the pen scan lines.

15. The display device according to claim 11, wherein The sensing panel further includes: Fingerprint scanning drive circuit; and Pen scanning drive circuit, wherein the plurality of fingerprint scanning lines are connected to the first group of fingerprint sensing pixels and the second group of fingerprint sensing pixels, The pen scanning line is connected to the first pen sensing pixel and the second pen sensing pixel, The fingerprint scanning driving circuit is configured to apply a plurality of fingerprint scanning signals to the plurality of fingerprint scanning lines, and The pen scan driving circuit is configured to apply a pen scan signal to the pen scan line.

16. The display device according to claim 15, in, The sensing substrate comprises: a sensing area, the sensing area including the first area on which the first group of fingerprint sensing pixels are arranged and the second area on which the first pen sensing pixels are arranged, The fingerprint scanning drive circuit is provided on an area of ​​the sensing substrate adjacent to the first side of the sensing area, and The pen scanning driving circuit is arranged on an area of ​​the sensing substrate adjacent to a second side of the sensing area, and the second side is opposite to the first side.

17. The display device according to claim 15, in, The control circuit comprises: a fingerprint reading circuit configured to apply a fingerprint scanning control signal to the fingerprint scanning driving circuit and receive the plurality of fingerprint reception signals from the plurality of first fingerprint reception lines and the plurality of second fingerprint reception lines; and A pen sensing circuit configured to apply a pen scanning control signal to the pen scanning drive circuit, apply a pen transmission signal to the first pen transmission line and the second pen transmission line, and receive the multiple pen reception signals from the first pen reception line and the second pen reception line.

18. The display device according to claim 9, in, The sensing panel further includes: A sensing layer is provided in which the first group of fingerprint sensing pixels and the first pen sensing pixels are arranged.

19. The display device according to claim 9, wherein The display device further includes: an optical layer, the optical layer being disposed between the display panel and the sensing panel, The optical layer includes a layer and a transmission pinhole penetrating the layer.

20. The display device according to claim 9, in, The display panel further includes an optical layer disposed on one surface of the display, and The optical layer includes a layer and a transmission pinhole penetrating the layer.

21. The display device according to claim 20, in, The sensing substrate includes optical sensing areas, each of the optical sensing areas being defined based on a viewing angle of a corresponding one of the transmissive pinholes. The first area of ​​the sensing substrate corresponds to a corresponding one of the optical sensing areas, and The first region of the sensing substrate has an area equal to or larger than an area of ​​a corresponding one of the optical sensing regions.

22. The display device according to claim 9, in, The display includes a display area in which the pixels are arranged and a non-display area defined adjacent to the display area, The sensing substrate includes a sensing area, the sensing area including the first area on which the first group of fingerprint sensing pixels are arranged and the second area on which the first pen sensing pixels are arranged, and The sensing area of ​​the sensing panel overlaps with the display area of ​​the display.

23. The display device according to claim 22, wherein: The display device further includes: circuit boards, The sensing panel further comprises: a sensing pad, wherein the sensing pad is arranged in a non-sensing area of ​​the sensing substrate adjacent to the sensing area, and The circuit board is electrically connected to the sensing panel through the sensing pads, and the control circuit is provided on the circuit board.

24. A sensing panel, wherein: The sensing panel includes: Sensing base layer; a fingerprint sensing pixel, the fingerprint sensing pixel being disposed on the first area of ​​the sensing substrate and connected to a plurality of fingerprint scanning lines and a plurality of fingerprint receiving lines; a plurality of pen sensing pixels, including pen sensing pixels disposed on a second area of ​​the sensing substrate and connected to corresponding pen scanning lines, pen transmission lines, and pen receiving lines, the second area being adjacent to and surrounding the first area; and a sensing coil, the sensing coil being disposed on the second area of ​​the sensing substrate and surrounding the first area of ​​the sensing substrate on which the fingerprint sensing pixels are disposed, The sensing coil intersects the plurality of fingerprint scanning lines in an insulated manner, and the sensing coil intersects the plurality of fingerprint receiving lines in an insulated manner. One end of the sensing coil is electrically connected to a ground voltage terminal, and the other end of the sensing coil is electrically connected to the pen sensing pixel.

25. A display device, wherein: The display device includes: a display panel including an input sensor configured to sense an external input and a display including pixels; a sensing panel provided on one surface of the display panel to sense fingerprints and pen input; and a control circuit configured to control the sensing panel and receive a plurality of fingerprint reception signals and a plurality of pen reception signals from the sensing panel, the sensing panel comprising: Sensing base layer; a fingerprint sensing pixel, the fingerprint sensing pixel being disposed on the first area of ​​the sensing substrate and connected to a plurality of fingerprint scanning lines and a plurality of fingerprint receiving lines; a plurality of pen sensing pixels, including pen sensing pixels disposed on a second area of ​​the sensing substrate and connected to corresponding pen scanning lines, pen transmission lines, and pen receiving lines, the second area being adjacent to and surrounding the first area; and a sensing coil, the sensing coil being disposed on the second area of ​​the sensing substrate and surrounding the first area of ​​the sensing substrate on which the fingerprint sensing pixels are disposed, The sensing coil intersects the plurality of fingerprint scanning lines in an insulated manner, and the sensing coil intersects the plurality of fingerprint receiving lines in an insulated manner. One end of the sensing coil is electrically connected to a ground voltage terminal, and the other end of the sensing coil is electrically connected to the pen sensing pixel.

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