Display device and electronic device including the same

Abstract

A display device and an electronic device including the same are provided. The display device includes: a display panel; display pixels arranged in the display area of the display panel; a light sensing pixel in the display area together with the display pixel; an infrared emission pixel in the display area together with the display pixel; the display scanning driver is used for driving the display pixels and the infrared light-emitting pixels to emit light; the light sensing scanning driver is used for driving the light sensing pixels to detect light; and a main driving circuit for detecting a pulse wave signal of a user using a light sensing signal received through the light sensing pixels, and measuring biometric information, in which the main driving circuit is for separating and generating blood vessel image data from the image data, and receive a light sensing signal of the light-receiving area by distinguishing the light-receiving area according to blood vessel image data in the display area.

Description

TECHNICAL FIELD

[0001] Embodiments of the disclosure relate to a display device and an electronic device including the same. BACKGROUND

[0002] As the information society develops, the demand for display devices that display images is increasing. Accordingly, display devices are applied to various electronic devices such as smart phones, digital cameras, notebook computers, tablet PCs, navigation devices, and smart TVs. Some portable display devices such as smart phones and tablet PCs are equipped with various functions such as image capturing, fingerprint recognition, and / or face recognition.

[0003] With recent interest in the healthcare industry, methods of more easily obtaining biometric information that can provide information about a user's health are being developed. For example, attempts are being made to change a sphygmomanometer into a portable blood pressure measuring device. However, portable blood pressure measuring devices require their own independent light source, sensor, and display and can be inconvenient due to having to be carried separately from a portable smart phone or tablet PC.

[0004] Recently, efforts are being made to combine portable display devices such as smart phones and tablet PCs with portable blood pressure measuring devices. However, due to limitations caused by the amount of light emission or brightness of a display device that displays images, the lifespan and / or reliability of a light source, and / or the like, it is difficult to secure conditions for measuring biometric information such as a signal-to-noise ratio (SNR).

[0005] The above information disclosed in this Background section is intended to provide an overview of the background of the disclosure and can contain information that is not prior art. SUMMARY

[0006] Aspects of one or more embodiments of the disclosure relate to a display device that can detect a photoplethysmography signal using an image display panel and measure biometric information such as blood pressure of a user and an electronic device including the same.

[0007] In addition, aspects of one or more embodiments of the disclosure relate to a display device that can set a blood vessel placement pattern and a corresponding region of a user by analyzing an image of a touched body part of the user and detect a biological signal such as a pulse wave signal through the blood vessel placement pattern region and an electronic device including the same.

[0008] However, aspects of the disclosure are not limited to the aspects set forth herein. Additional aspects will be set forth in part in the description that follows, and in part will become apparent to those skilled in the art upon examination of the description and / or the drawings.

[0009] According to one or more embodiments of the disclosure, a display apparatus includes a display panel; display pixels arranged in a display area of the display panel; light sensing pixels arranged together with the display pixels in the display area; infrared light emitting pixels arranged together with the display pixels in the display area; a display scan driver to drive the display pixels and the infrared light emitting pixels to emit light; a light sensing scan driver to drive the light sensing pixels to detect light; and a main driving circuit to detect a pulse wave signal of a user using a light sensing signal received through the light sensing pixels and to measure biometric information, wherein the main driving circuit separates and generates (e.g., configured to separate and generate) blood vessel image data from image data of a touch area during a user's touch position detection period, and receives a light sensing signal of a light reception area received by distinguishing the light reception area according to the blood vessel image data in the display area during a user's biometric information detection period (e.g., configured to receive a light sensing signal of a light reception area received by distinguishing the light reception area according to the blood vessel image data in the display area during a user's biometric information detection period).

[0010] According to one or more embodiments of the disclosure, a display apparatus includes a display panel; display pixels arranged in a display area of the display panel; light sensing pixels arranged together with the display pixels in the display area; infrared light emitting pixels arranged together with the display pixels in the display area; a display scan driver to drive the display pixels and the infrared light emitting pixels to emit light; a light sensing scan driver to drive the light sensing pixels to detect light; and a main driving circuit to detect a pulse wave signal of a user using a light sensing signal received through the light sensing pixels and to measure biometric information, wherein the main driving circuit displays a biometric information measurement area as an application program screen in the display area (e.g., configured to display a biometric information measurement area as an application program screen in the display area), drives display pixels or infrared light emitting pixels arranged in the biometric information measurement area by controlling scan signal outputs of the display scan driver and the light sensing scan driver (e.g., configured to drive display pixels or infrared light emitting pixels arranged in the biometric information measurement area by controlling scan signal outputs of the display scan driver and the light sensing scan driver), and receives a light sensing signal through the light sensing pixels of the biometric information measurement area (e.g., configured to receive a light sensing signal through the light sensing pixels of the biometric information measurement area).

[0011] In the display apparatus according to one or more embodiments, if (for example, when) light emitted from the image display pixels is reflected by a specific body part such as a user's finger, the reflected light can be detected by the light sensing pixels of the display panel to measure biometric information such as blood pressure of the user. Accordingly, biometric information such as blood pressure of the user can be detected using the display panel of the display apparatus.

[0012] The display apparatus according to one or more embodiments can set a blood vessel placement pattern and a corresponding area of a user by analyzing an image of a touch body part of the user, and can detect a biological signal such as a pulse wave signal through the blood vessel placement pattern area. Accordingly, the user can be identified through an analysis result of the blood vessel placement pattern area, and biometric information of the user can be more accurately measured.

[0013] However, the features and effects of the present disclosure are not limited to those set forth herein. The above-mentioned and other features and effects of the present disclosure will become more fully clear to those of ordinary skill in the art to which the present disclosure pertains by referring to the claims. BRIEF DESCRIPTION OF DRAWINGS

[0014] The patent or application file contains at least one drawing executed in color.

[0015] These and / or other aspects, features, and / or principles of the disclosure will become more fully clear and easier to understand with reference to the following description of one or more embodiments of the disclosure, taken in conjunction with the accompanying drawings, in which: Figure 1 is a perspective view of a display apparatus according to one or more embodiments of the present disclosure; Figure 2 is a plan view showing an arrangement structure of a display panel and a display driving circuit according to one or more embodiments of the present disclosure; Figure 1 Figure 3 is a plan view showing an arrangement structure of a display panel and a display driving circuit according to one or more embodiments of the present disclosure; Figure 4 is a side view showing a configuration of a display apparatus according to one or more embodiments of the present disclosure; Figure 1 and Figure 2 Figure 5 is a side view showing a configuration of a display apparatus according to one or more embodiments of the present disclosure; Figure 1 and Figure 2 Figure 6 is a schematic layout diagram of a display panel shown in Figures 1 to 4 Figure 7 ​​​​is a layout diagram of a display area according to one or more embodiments of the present disclosure; Figure 8 is a circuit diagram of a display pixel and a light sensing pixel according to one or more embodiments of the present disclosure; Figure 9 is a flowchart illustrating a biometric information extraction process of a main driving circuit according to one or more embodiments of the present disclosure; Figure 10 shows an image illustrating a pulse wave detection pattern area setting method of a main driving circuit according to one or more embodiments of the present disclosure; Figure 11 shows an image illustrating a method of respectively setting a light emission driving area (e.g., a light emission area) and a light sensing area (e.g., a light reception area) in a pulse wave detection pattern area shown in Figure 10 Figure 12 is a diagram illustrating a reflection light sensing area and a pulse wave detection pattern area distinguished in a display area of one or more embodiments of the present disclosure; Figure 13 is a flowchart illustrating a biometric information extraction process of a main driving circuit according to one or more embodiments of the present disclosure; Figure 14 shows an image illustrating a pulse wave detection pattern area setting method of a main driving circuit according to one or more embodiments of the present disclosure; Figure 15 is a diagram illustrating a user recognition method using a pulse wave detection pattern area according to one or more embodiments of the present disclosure; Figure 16 is a diagram for explaining a method of calculating blood pressure information from biometric information according to one or more embodiments of the present disclosure; Figure 17 is a diagram for explaining a method of calculating information about a heartbeat and respiration from biometric information according to one or more embodiments of the present disclosure; Figure 18 is a diagram for explaining a method of calculating information about vascular elasticity from biometric information according to one or more embodiments of the present disclosure; Figure 19 is a diagram for explaining a method of calculating information about a cardiovascular disease from biometric information according to one or more embodiments of the present disclosure; Figure 20 is a diagram for explaining a method of calculating information about oxygen saturation from biometric information according to one or more embodiments of the present disclosure; and Figure 21 ​Results of measuring biometric information using a display device according to one or more embodiments of the present disclosure are shown. DETAILED DESCRIPTION

[0016] The present disclosure can be modified in numerous alternative forms, specific embodiments will be shown and described in the drawings and more detail. It is understood, however, that this is not intended to limit the present disclosure to the particular forms disclosed, but is intended to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the present disclosure.

[0017] The present disclosure will now be more fully described hereinafter with reference to the drawings. The disclosure may, however, be embodied in different forms, and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the aspects and features of the disclosure to those skilled in the art, and so that the disclosure will be fully comprehended as having a reasonable expectation of success, without undue experimentation by persons having ordinary skill in the art not necessary to describe processes, elements and techniques that are well known in this art for a full understanding of the aspects and features of the present disclosure.

[0018] It will be understood that when an element such as a region, layer, film, zone or part is referred to as being "on" or "connected to" another element, it can be directly on the other element or directly connected to the other element, or one or more intervening elements can exist. In contrast, when an element or layer is referred to as being "directly on", "directly connected to", or "directly adjacent" another element or layer, there are no intervening elements or layers present. It will also be understood that when an element is referred to as being "between" two elements, it can be the only element between the two elements or one or more intervening elements can also be present.

[0019] Throughout the drawings and written description, like reference numerals have been used to indicate like elements, so that repeated description of the same or largely similar elements and functions can not be provided.

[0020] It will be understood that, although the terms "first", "second", "third", and the like can be used herein to describe various elements, components, regions, layers and / or sections, these elements, components, regions, layers and / or sections should not be limited by these terms. These terms are used to distinguish one element, component, region, layer or section from another element, component, region, layer or section. Thus, a first element, a first component, a first region, a first layer or a first section described below could be termed a second element, a second component, a second region, a second layer or a second section without departing from the spirit and scope of the present disclosure.

[0021] For ease of explanation, spatially relative terms, such as "on", "under", "lower", "below", "above", "upper", and the like, can be used herein for describing an element's or feature's relationship to another element(s) or feature(s) as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is inverted, then an element described as "below" or "beneath" another element or feature would then be oriented "above" the other element or feature. Thus, the example terms "below" and "beneath" can encompass both an orientation of above and below. The device can be otherwise oriented (e.g., rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

[0022] As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises", "comprising", "includes" and / or "including", when used herein, specify 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.

[0023] As used herein, the term "and / or", includes any and all combinations of one or more of the associated listed items. Expressions such as "at least one of", "one or more of", and "one or more of the following", when preceding a list of items, modify the list as a whole, and do not modify the individual items of the list. Unless specifically stated otherwise, expressions such as "at least one of", "one or more of", and "one or more of the following" are used to indicate that at least one of the items in the list is present, but that more than one of the items in the list can be present. For example, "at least one of a, b, and c" indicates that a is present, b is present, c is present, a and b are present, a and c are present, b and c are present, or a, b, and c are present. Similarly, "one or more of a, b, and c" indicates that a is present, b is present, c is present, a and b are present, a and c are present, b and c are present, or a, b, and c are present.

[0024] In the drawings, the relative sizes of elements, layers, and regions can be exaggerated for clarity.

[0025] As used herein, the term "use" and variations thereof can be considered synonymous with the term "utilize" and variations thereof.

[0026] Each of the features of various embodiments of the present disclosure can be partially or wholly combined with or into each other, and various interlocks and drives are possible. Each embodiment can be implemented independently of each other, or can be implemented together in association.

[0027] In the context of the present disclosure, and unless otherwise defined, a plan view is an orthogonal projection of a three-dimensional object from a position that passes through a horizontal plane of the object. That is, it is a top-down view showing the layout and spatial relationships of various elements within the object or structure. A plan view based on the third direction DR3 refers to a top-down view of the display panel as if looking directly down at the surface from above. In this context, the third direction DR3 is a direction that is perpendicular or orthogonal to the plane defined by the first direction DR1 and the second direction DR2. This means that, in a plan view, the sub-pixels, pads (also referred to as "bond pads"), and other components can be seen as arranged as they are laid out on the substrate without any perspective distortion.

[0028] Hereinafter, one or more embodiments will be described with reference to the accompanying drawings.

[0029] Figure 1 is a perspective view of a display device 10 according to one or more embodiments of the present disclosure. Figure 2 is a perspective view of a display device 10 according to one or more embodiments of the present disclosure. Figure 1 is a plan view of an arrangement structure of a display panel 100 and a display driving circuit shown in

[0030] Referring to Figure 1 and Figure 2 The display device 10 according to one or more embodiments can be applied to a portable electronic device such as a mobile phone, a smart phone, a tablet personal computer (PC), a mobile communication terminal, an electronic notebook, an electronic book, a portable multimedia player (PMP), a navigation device, and / or an ultra-mobile PC (UMPC). Alternatively, the display device 10 according to one or more embodiments can be applied as a display unit of a television, a notebook computer, a monitor, a billboard, and / or an Internet of Things (IoT) device. Alternatively, the display device 10 according to one or more embodiments can be applied to a wearable device such as a smart watch, a watch phone, a glasses-type (category) display, and / or a head-mounted display (HMD). Alternatively, the display device 10 according to one or more embodiments can be applied to a display in a dashboard of a vehicle, a center fascia of a vehicle, a central information display (CID) disposed on a dashboard of a vehicle, an interior mirror display instead of a side mirror of a vehicle, and / or an automotive display disposed on a rear side of a front seat as a display for entertainment of a rear seat passenger of a vehicle.

[0031] The display device 10 can be a light-emitting display device such as an organic light-emitting display device using an organic light-emitting diode, a quantum dot light-emitting display device including a quantum dot light-emitting layer, an inorganic light-emitting display device including an inorganic semiconductor, or a micro light-emitting display device or a nano light-emitting display device using a micro light-emitting diode or a nano light-emitting diode. Hereinafter, embodiments in which the display device 10 is an organic light-emitting display device will be described in greater detail, but the present disclosure is not limited thereto.

[0032] The display panel 100 can be formed in a rectangular planar shape having a short side in a first direction DR1 and a long side in a second direction DR2 crossing the first direction DR1. Each corner where the short side extending in the first direction DR1 meets the long side extending in the second direction DR2 can be a right angle, or can be rounded to have a set or predetermined curvature. The planar shape of the display panel 100 is not limited to a quadrilateral shape, but can also be other polygonal shapes, a circular shape, or an elliptical shape. The display panel 100 can be formed to be flat, but the present disclosure is not limited thereto. For example, the display panel 100 can include curved portions formed at left and right ends and having a constant or varying curvature. In one or more embodiments, the display panel 100 can be formed to be flexible, such that it can be bent, folded, folded, or rolled.

[0033] The substrate SUB of the display panel 100 can be divided into a main area MA and a sub area SBA.

[0034] The main area MA can be divided into a display area DA in which an image is displayed and a non-display area NDA arranged around the display area DA.

[0035] The non-display area NDA can be adjacent to the display area DA. The non-display area NDA can be an area outside the display area DA. The non-display area NDA can surround (e.g., enclose) the display area DA. The non-display area NDA can be an edge area of the display panel 100.

[0036] The display area DA includes display pixels displaying an image and light-sensing pixels detecting light reflected from a front protective cover or a protective glass and a user's body part such as a finger. The display area DA can occupy a large portion of the main area MA. The display area DA can be arranged in the center of the main area MA.

[0037] Figure 3 is a plan view showing an arrangement structure of the display panel 100 and the display driving circuit according to one or more embodiments of the present disclosure. Figure 4 is a plan view showing an arrangement structure of the display panel 100 and the display driving circuit according to one or more embodiments of the present disclosure. Figure 1 and Figure 2 is a side view of the configuration of the display device 10 shown in

[0038] Referring to Figure 1 , Figure 3 and Figure 4 , the display device 10 includes a display panel 100, a main driving circuit 200, a touch sensing unit TSU, a pressure sensing unit PSU, a circuit board 300, a touch driving circuit 400, and a biometric information storage memory 500. In an embodiment, the display panel 100 can include the touch sensing unit TSU, the pressure sensing unit PSU, and a display module DU, and the display module DU can include a substrate SUB, a transistor layer TFTL disposed on the substrate SUB, an emission layer EML disposed on the transistor layer TFTL, and an encapsulation layer TFEL covering the emission layer EML.

[0039] Referring to Figure 3 , the display panel 100 can be formed in a rectangular planar shape having a short side in a first direction DR1 and a long side in a second direction DR2 crossing the first direction DR1. Each corner where the short side extending in the first direction DR1 meets the long side extending in the second direction DR2 can be a right angle, or can be rounded to have a set or predetermined curvature. The planar shape of the display panel 100 is not limited to a quadrilateral shape, but can also be other polygonal shapes, a circular shape, or an elliptical shape. The display panel 100 can be formed to be flat, but the present disclosure is not limited thereto. For example, the display panel 100 can include curved portions formed at left and right ends and having a constant or varying curvature. In one or more embodiments, the display panel 100 can be formed to be flexible, such that it can be bent, folded, folded, or rolled.

[0040] Referring to Figure 3 , the display area DA can be divided into an image display area IDA in which only display pixels are arranged without light sensing pixels, and a biometric information measurement area FSA in which both display pixels and light sensing pixels are arranged to detect biometric information including a pulse wave signal. For example, light sensing pixels formed to detect a pulse wave signal can be arranged only in the biometric information measurement area FSA in a preset portion of the display area DA of the display panel 100 together with the display pixels.

[0041] The sub area SBA can protrude from one side of the main area MA in the second direction DR2. The length of the sub area SBA in the second direction DR2 can be less than the length of the main area MA in the second direction DR2. The length of the sub area SBA in the first direction DR1 can be less than the length of the main area MA in the first direction DR1, or can be substantially equal to the length of the main area MA in the first direction DR1.

[0042] The sub area SBA can include a first area A1, a second area A2, and a curved area BA.

[0043] The first region A1 is a region that protrudes from one side of the main region MA in the second direction DR2. One side of the first region A1 can contact the non-display area NDA of the main region MA, and the other side of the first region A1 can contact the curved area BA.

[0044] The second region A2 is the area where the pad DP and the main drive circuit 200 are arranged. The main drive circuit 200 can be attached to the drive pad of the second region A2 using a conductive adhesive member such as an anisotropic conductive layer. The circuit board 300 can be attached to the pad DP of the second region A2 using a conductive adhesive member. One side of the second region A2 can contact the bending region BA.

[0045] The curved region BA is a bendable region. When the curved region BA bends, the second region A2 can be placed below the first region A1 and below the main region MA. The curved region BA can be arranged between the first region A1 and the second region A2. One side of the curved region BA can contact the first region A1, and the other side of the curved region BA can contact the second region A2.

[0046] like Figure 4 As shown, the sub-region SBA can be curved. In such an embodiment, the sub-region SBA can be placed below the main region MA. The sub-region SBA can be superimposed on the main region MA on the third-direction DR3.

[0047] A touch sensing unit (TSU) for detecting the touch location of body parts (such as fingers) can be disposed on the front surface of a display panel 100 including a display area DA. The touch sensing unit (TSU) may include multiple touch electrodes to detect the user's touch capacitively.

[0048] The touch sensing unit (TSU) includes a plurality of touch electrodes arranged to intersect each other in a first direction DR1 and a second direction DR2. For example, the touch electrodes include a plurality of driving electrodes spaced apart and / or separated (e.g., separated or separated) and arranged side-by-side in the first direction DR1, and a plurality of sensing electrodes spaced apart and / or separated (e.g., separated or separated) and arranged side-by-side in the second direction DR2, intersecting the driving electrodes, with an organic or inorganic material layer disposed between them. The driving electrodes and sensing electrodes may be formed to extend along a wiring region arranged in the display area DA between the display pixel SP and the photosensitive pixel LSP, so as not to overlap with the display pixel SP and the photosensitive pixel LSP. The driving electrodes and sensing electrodes form mutual capacitance and transmit touch sensing signals that change according to the user's touch to the touch driving circuit 400.

[0049] The touch driving circuit 400 can detect mutual capacitance variation between touch electrodes input from the touch electrodes, and supply touch data according to the capacitance variation and coordinate data of a touch detection position to the main driving circuit 200.

[0050] The touch driving circuit 400 supplies a touch driving signal to the driving electrodes, respectively, and receives a touch sensing signal from the sensing electrodes, respectively. In one or more embodiments, the touch driving circuit 400 detects mutual capacitance variation between the driving electrodes and the sensing electrodes according to size variation of the touch sensing signal. The touch driving circuit 400 generates touch data according to the mutual capacitance variation between the driving electrodes and the sensing electrodes, and derives a touch detection position. Accordingly, coordinate data of the touch detection position can be supplied to the main driving circuit 200.

[0051] A pressure sensing unit PSU that detects pressure applied by a body part such as a finger can be arranged or formed on a rear surface (e.g., a rear surface of the substrate SUB) of the display panel 100. The pressure sensing unit PSU can be formed in a transparent sheet type (kind) in which a plurality of transparent electrodes are arranged in a vertical direction and a horizontal direction, and can be arranged in the entire main area MA. In one or more embodiments, the pressure sensing unit PSU can be arranged or formed on the inside or the front surface of the display panel 100.

[0052] For example, the pressure sensing unit PSU includes a plurality of pressure sensing electrodes arranged to cross each other in a first direction DR1 and a second direction DR2. The pressure sensing electrodes include a plurality of lower electrodes spaced apart and / or divided (e.g., partitioned or separated) in the first direction DR1 and arranged side by side, and a plurality of upper electrodes spaced apart and / or divided (e.g., partitioned or separated) in the second direction DR2 and arranged side by side to cross the lower electrodes with a transparent inorganic (or organic) material layer interposed therebetween. The lower electrodes and the upper electrodes form a self-capacitance with the transparent inorganic (or organic) material layer interposed therebetween, and transmit a pressure sensing signal according to touch pressure variation of a user to the touch driving circuit 400.

[0053] Figure 5 is a side view illustrating a configuration of the display apparatus 10 shown in Figure 1 and Figure 2

[0054] Figure 5 An example in which the pressure sensing unit PSU is arranged on a front surface of the display panel 100 (e.g., on a surface between the display panel 100 and the touch sensing unit TSU) is illustrated.

[0055] ​When the pressure sensing unit PSU is disposed on the front surface of the display panel 100, the pressure sensing electrodes (i.e., the plurality of lower electrodes and upper electrodes) of the pressure sensing unit PSU can be formed to extend along a wiring area between the display pixels and the light sensing pixels disposed in the display area DA, thereby not being overlapped with the display pixels and the light sensing pixels. The touch driving circuit 400 can supply a reference voltage to the lower electrodes of the pressure sensing unit PSU and receive a pressure sensing signal from the upper electrodes to detect a self-capacitance change of the pressing area through the pressure sensing signal. Accordingly, the touch driving circuit 400 can generate pressure data according to the amount of the self-capacitance change and detection coordinate data of the pressure detection location, and supply the pressure data to the main driving circuit 200. The pressure sensing unit PSU can also be applied to one or more suitable structures other than the structure using the pressure sensing electrodes, and is not limited to Figure 3 and Figure 4 described above.

[0056] The circuit board 300 can be attached to the end portion of the sub-area SBA. Accordingly, the circuit board 300 can be electrically connected to the display panel 100 and the main driving circuit 200. The display panel 100 and the main driving circuit 200 can receive digital video data, a timing signal, and a driving voltage through the circuit board 300. The circuit board 300 can be a flexible printed circuit board, a printed circuit board, or a flexible film such as a chip on film.

[0057] The main driving circuit 200 can generate an electrical signal such as a control signal and a data voltage for driving the display panel 100. Each of the main driving circuit 200 and the touch driving circuit 400 can be formed as an integrated circuit, and attached to the display panel 100 or the circuit board 300 using a chip on glass (COG) method, a chip on plastic (COP) method, or an ultrasonic bonding method. However, the present disclosure is not limited thereto. For example, each of the main driving circuit 200 and the touch driving circuit 400 can also be attached to the circuit board 300 using a chip on film (COF) method.

[0058] Figure 6 is a schematic layout diagram of the display panel 100 shown in Figures 1 to 4 According to one or more embodiments of the present disclosure. For example, Figure 6 is a layout diagram showing a display area DA and a non-display area NDA of a display module DU before a touch sensing unit TSU is formed.

[0059] with Figure 3 and Figure 4 reference to Figure 6The display scan driver 110, the light sensing scan driver 120, and the main driving circuit 200 can be disposed on the display panel 100 of the display apparatus 10 according to one or more embodiments. In one or more embodiments, the touch driving circuit 400 and the power supply unit can be disposed on the circuit board 300 connected to the display panel 100. Here, both the main driving circuit 200 and the touch driving circuit 400 can be integrally formed as a 1-chip type (category) and mounted on the display panel 100 or the circuit board 300. However, for ease of functional description, an example in which the main driving circuit 200 and the touch driving circuit 400 are formed as different integrated circuits will be described in more detail below.

[0060] Referring to Figure 6 The display panel 100 can include display pixels SP, infrared emission pixels ISP, light sensing pixels LSP, display scan lines GL, emission control lines VL, data lines DL, light sensing scan lines FSL, sensing reset lines REL, and light sensing lines ERL disposed in the display area DA. The display scan driver 110 and the light sensing scan driver 120 are disposed in the non-display area NDA.

[0061] The display scan lines GL sequentially supply a display scan signal received from the display scan driver 110 to each of the display pixels SP, the light sensing pixels LSP, and the infrared emission pixels ISP per horizontal line (e.g., each of the display pixels SP, the light sensing pixels LSP, and the infrared emission pixels ISP is connected to a horizontal line of the display scan lines GL). The display scan lines GL can extend in the first direction DR1 and can be spaced apart and / or separated (e.g., partitioned or separated) from each other in the second direction DR2 crossing the first direction DR1.

[0062] The emission control lines VL sequentially supply an emission control signal received from the display scan driver 110 to each of the display pixels SP, the light sensing pixels LSP, and the infrared emission pixels ISP per horizontal line (e.g., each of the display pixels SP, the light sensing pixels LSP, and the infrared emission pixels ISP is connected to a horizontal line of the emission control lines VL). The emission control lines VL can extend in the first direction DR1 in parallel to the display scan lines GL and can be spaced apart and / or separated (e.g., partitioned or separated) from each other in the second direction DR2 crossing the first direction DR1.

[0063] The data lines DL can supply a data voltage received from the main driving circuit 200 to the plurality of display pixels SP. The data lines DL can extend in the second direction DR2 and can be spaced apart and / or separated (e.g., partitioned or separated) from each other in the first direction DR1.

[0064] The light-sensing scan lines FSL sequentially supply the sensing scan signals received from the light-sensing scan driver 120 to each of the plurality of light-sensing pixels LSP line by line (e.g., each of the light-sensing pixels LSP is connected to a horizontal line of the light-sensing scan lines FSL). The light-sensing scan lines FSL can extend in the first direction DR1, and can be spaced apart and / or separated (e.g., partitioned or separated) from each other in the second direction DR2 crossing the first direction DR1.

[0065] The sensing reset lines REL sequentially supply the sensing reset signals received from the light-sensing scan driver 120 to each of the plurality of light-sensing pixels LSP line by line (e.g., each of the light-sensing pixels LSP is connected to a horizontal line of the sensing reset lines REL). The sensing reset lines REL can extend in the first direction DR1 in parallel to the light-sensing scan lines FSL, and can be spaced apart and / or separated (e.g., partitioned or separated) from each other in the second direction DR2 crossing the first direction DR1.

[0066] The light-sensing lines ERL are connected between the light-sensing pixels LSP and the main driving circuit 200 to supply the light-sensing signals respectively output from the light-sensing pixels LSP to the main driving circuit 200. The light-sensing lines ERL can be arranged and extend in the second direction DR2 according to the direction in which the main driving circuit 200 is arranged along, and can be spaced apart and / or separated (e.g., partitioned or separated) from each other in the first direction DR1.

[0067] The non-display area NDA can surround (e.g., enclose) the display area DA. The non-display area NDA can include the display scan driver 110, the light-sensing scan driver 120, the fan-out lines FOL, the gate control lines GCL, and the light-sensing control lines SCL.

[0068] The display pixels SP and the light-sensing pixels LSP can form first unit pixels (e.g., each first unit pixel can include a display pixel SP and a light-sensing pixel LSP), and the first unit pixels can be arranged in a matrix form in the display area DA in the first direction DR1 and the second direction DR2. In one or more embodiments, the display pixels SP and the infrared light-emitting pixels ISP can form second unit pixels (e.g., each second unit pixel can include a display pixel SP and an infrared light-emitting pixel ISP), and the second unit pixels can be arranged in a matrix form in the display area DA alternately with the first unit pixels.

[0069] For example, three display pixels SP displaying red light, green light, and blue light, respectively, and one light sensing pixel LSP can form each first unit pixel. In one or more embodiments, three display pixels SP displaying red light, green light, and blue light, respectively, and one infrared light emitting pixel ISP can form each second unit pixel. The first unit pixels and the second unit pixels can be arranged in a matrix form by being alternated in a horizontal stripe or a vertical stripe form. In one or more embodiments, the first unit pixels and the second unit pixels can be alternately arranged in a zigzag form in a plan view, and can be arranged in a matrix form in any one diagonal direction.

[0070] Each of the red display pixels SP, the green display pixels SP, and the blue display pixels SP, and the infrared light emitting pixels ISP can be connected to any one of display scan lines GL and any one of emission control lines VL. During an image display period, each of the red display pixels SP, the green display pixels SP, and the blue display pixels SP can receive a data voltage of a data line DL according to a display scan signal of the display scan line GL and an emission control signal of the emission control line VL, and can emit light by supplying a driving current to a light emitting element according to the data voltage. Here, during a period for measuring biometric information such as blood pressure, each of the display pixels SP displaying at least one color among red, green, and blue can emit light by optionally receiving a data voltage for light emission as well as the display scan signal and the emission control signal. In one or more embodiments, during a period for measuring biometric information such as blood pressure, each of the infrared light emitting pixels ISP can emit infrared light by optionally receiving a data voltage for light emission as well as the display scan signal and the emission control signal.

[0071] The light sensing pixels LSP can be alternately arranged with the red display pixels SP, the green display pixels SP, and the blue display pixels SP in a vertical direction or a horizontal direction. Each of the light sensing pixels LSP can be connected to one of light sensing scan lines FSL, one of sensing reset lines REL, and one of light sensing lines ERL. During a period for measuring biometric information such as blood pressure, each of the light sensing pixels LSP can be reset in response to a sensing reset signal from the sensing reset line REL, and can generate a light sensing signal corresponding to an amount of reflected light incident from a front side. In one or more embodiments, each of the light sensing pixels LSP can transmit the light sensing signal to the light sensing line ERL in response to a sensing scan signal from the light sensing scan line FSL.

[0072] In one or more embodiments, each of the light sensing pixels LSP can be connected to one of the display scan lines GL per horizontal line. Each of the light sensing pixels LSP can generate a light sensing signal corresponding to an amount of reflected light incident from the front side, and can output the light sensing signal to the light sensing line ERL in response to a display scan signal received through the display scan line GL.

[0073] The display scan driver 110 can be arranged in the non-display area NDA. Although the display scan driver 110 is illustrated as being arranged at one side (e.g., the left side) of the display panel 100, the present disclosure is not limited thereto. For example, the display scan driver 110 can also be arranged at both sides (e.g., opposite sides (e.g., the left and right sides)) of the display panel 100.

[0074] The display scan driver 110 can be electrically connected to the main driving circuit 200 through the gate control line GCL. The display scan driver 110 receives a scan control signal from the main driving circuit 200, sequentially generates a display scan signal in each horizontal line driving period according to the scan control signal, and sequentially supplies the display scan signal to the display scan line GL. In one or more embodiments, the display scan driver 110 can sequentially generate an emission control signal according to the scan control signal from the main driving circuit 200, and sequentially supply the emission control signal to the emission control line VL.

[0075] The gate control line GCL can extend from the main driving circuit 200 to the display scan driver 110 according to the location of the display scan driver 110. The gate control line GCL can supply the scan control signal received from the main driving circuit 200 to the display scan driver 110.

[0076] The light sensing scan driver 120 can be arranged in a different portion of the non-display area NDA from the display scan driver 110. In Figure 5 In an embodiment, the light sensing scan driver 120 is arranged at the other side (e.g., the right side) of the display panel 100, but the present disclosure is not limited thereto. The light sensing scan driver 120 can be electrically connected to the main driving circuit 200 through the light sensing control line SCL. The light sensing scan driver 120 receives a light sensing control signal from the main driving circuit 200, and sequentially generates a reset control signal and a sensing scan signal in each horizontal line driving period according to the light sensing control signal. The generated reset control signal is then sequentially supplied to the sensing reset line REL. In one or more embodiments, the light sensing scan driver 120 can sequentially generate a sensing scan signal according to the light sensing control signal from the main driving circuit 200, and sequentially supply the sensing scan signal to the light sensing scan line FSL.

[0077] The light sensing control line SCL can extend from the main driving circuit 200 to the light sensing scan driver 120 according to the position of the light sensing scan driver 120. The light sensing control line SCL can supply a light sensing control signal received from the main driving circuit 200 to the light sensing scan driver 120.

[0078] The sub-area SBA can include the main driving circuit 200, the display pad area DPA, and the first touch pad area TPA1 and the second touch pad area TPA2. The display pad area DPA, the first touch pad area TPA1, and the second touch pad area TPA2 can be arranged at the edges of the sub-area SBA. The display pad area DPA, the first touch pad area TPA1, and the second touch pad area TPA2 can be electrically connected to the circuit board 300 using a material with low resistance and high reliability, such as an anisotropic conductive film or SAP. In an embodiment, the first touch pad TP1 can be arranged in the first touch pad area TPA1, and the second touch pad TP2 can be arranged in the second touch pad area TPA2.

[0079] The fan-out line FOL can extend from the main driving circuit 200 to the display area DA. In one or more embodiments, the fan-out line FOL is connected to the data line DL, so that a data voltage received from the main driving circuit 200 can be supplied to the data line DL, respectively.

[0080] The main driving circuit 200 can output a signal and a voltage for driving the display panel 100 to the fan-out line FOL. The main driving circuit 200 can supply a data voltage to the data line DL through the fan-out line FOL. The data voltage can be supplied to the display pixel SP and can determine the brightness of the display pixel SP. The main driving circuit 200 can supply a gate control signal to the display scan driver 110 through the gate control line GCL. The main driving circuit 200 can generate digital video data according to touch coordinates based on touch coordinate data from the touch driving circuit 400, or can execute an application indicated by an icon displayed at the coordinates of the user's touch.

[0081] Figure 7 is a layout diagram of the display area DA according to one or more embodiments of the disclosure.

[0082] Referring to Figure 7 , the display area DA can include the display pixel SP, the infrared light emitting pixel ISP, and the light sensing pixel LSP. Here, the display pixel SP can be divided into the first display pixel SP1, the second display pixel SP2, and the third display pixel SP3.

[0083] The first display pixel SP1, the second display pixel SP2, the third display pixel SP3, and the light sensing pixel LSP can be defined as a first unit pixel PG1 (e.g., each first unit pixel PG1 can include the first display pixel SP1, the second display pixel SP2, the third display pixel SP3, and the light sensing pixel LSP). In one or more embodiments, the first display pixel SP1, the second display pixel SP2, the third display pixel SP3, and the infrared light emitting pixel ISP can be defined as a second unit pixel PG2 (e.g., each second unit pixel PG2 can include the first display pixel SP1, the second display pixel SP2, the third display pixel SP3, and the infrared light emitting pixel ISP).

[0084] Each of the first unit pixel PG1 and the second unit pixel PG2 can be defined as a minimum unit of a display pixel that can display white. Each of the first unit pixel PG1 can sense light. The first unit pixel PG1 and the second unit pixel PG2 can be alternately arranged in a zigzag form in a plan view, and can be arranged in a matrix form in any one diagonal direction. In one or more embodiments, the first unit pixel PG1 and the second unit pixel PG2 can be arranged in a matrix form by being alternated in a horizontal stripe or a vertical stripe form in a plan view.

[0085] The first display pixel SP1 can include a first light emitting unit ELU1 that emits first light, and a first pixel driving unit DDU1 for supplying a driving current to a light emitting element of the first light emitting unit ELU1. The first light can be light in a red wavelength band. For example, a main peak wavelength of the first light can be located at about 600 nm to 750 nm.

[0086] The second display pixel SP2 can include a second light emitting unit ELU2 that emits second light, and a second pixel driving unit DDU2 for supplying a driving current to a light emitting element of the second light emitting unit ELU2. The second light can be light in a blue wavelength band. For example, a main peak wavelength of the second light can be located at about 370 nm to 460 nm.

[0087] The third display pixel SP3 can include a third light emitting unit ELU3 that emits third light, and a third pixel driving unit DDU3 for supplying a driving current to a light emitting element of the third light emitting unit ELU3. In one or more embodiments, the third light can be light in a blue wavelength band. In one or more embodiments, the third light can be light in a green wavelength band. For example, a main peak wavelength of the third light can be located at about 480 nm to 560 nm.

[0088] The infrared light-emitting pixel ISP can include an infrared light-emitting unit ILU that emits light in an infrared waveband and an infrared pixel driving unit IDU for supplying a driving current to a light-emitting element of the infrared light-emitting unit ILU. A main peak wavelength of the infrared light can be located at about 750 nm to 1 mm.

[0089] The light-sensing pixel LSP includes a light-sensing unit PDU and a sensing driving unit FDU.

[0090] In the first unit pixel PG1, the first to third pixel driving units DDU1 to DDU3 can be arranged in a preset order in the first direction DR1. In one or more embodiments, any one of the first to third pixel driving units DDU1 to DDU3 can be arranged in the first direction DR1 with respect to another pixel driving unit adjacent thereto. In one or more embodiments, the sensing driving unit FDU can be arranged in the first direction DR1 with respect to any one of the first to third pixel driving units DDU1 to DDU3. In one or more embodiments, the sensing driving unit FDU can be arranged in the second direction DR2 with respect to any one of the first to third pixel driving units DDU1 to DDU3.

[0091] The first pixel driving unit DDU1 adjacent to each other in the data line direction can be arranged in the second direction DR2. The second pixel driving unit DDU2 adjacent to each other in the data line direction can be arranged in the second direction DR2. Similarly, the sensing driving unit FDU adjacent to each other in the data line direction can all be arranged in the second direction DR2.

[0092] The first to third light-emitting units ELU1 to ELU3, the infrared light-emitting unit ILU, and the light-sensing unit PDU can have a planar shape of a quadrilateral, an octagon, or a rhombus. However, the present disclosure is not limited thereto. The first to third light-emitting units ELU1 to ELU3, the infrared light-emitting unit ILU, and the light-sensing unit PDU can also have a planar shape of a polygon other than a quadrilateral, an octagon, or a rhombus.

[0093] Due to the positions and planar shapes of the first light emitting unit ELU1, the second light emitting unit ELU2, the third light emitting unit ELU3, and the light sensing unit PDU, a distance D12 between a center C1 of the first light emitting unit ELU1 and a center C2 of the second light emitting unit ELU2 adjacent to each other, a distance D23 between the center C2 of the second light emitting unit ELU2 and a center C3 of the third light emitting unit ELU3 adjacent to each other, a distance D14 between the center C1 of the first light emitting unit ELU1 and a center C4 of the light sensing unit PDU adjacent to each other, and a distance D34 between the center C4 of the second light emitting unit ELU2 (or the center C4 of the light sensing unit PDU) and the center C3 of the third light emitting unit ELU3 can be substantially equal.

[0094] Figure 8 is a circuit diagram of a display pixel SP and a light sensing pixel LSP according to one or more embodiments of the disclosure.

[0095] Referring to Figure 8 , each display pixel SP according to one or more embodiments can be connected to a k-th display initialization line GILk, a k-th display scan line GLk, a k-th display control line GCLk, and a k-th emission control line VLk. In one or more embodiments, each display pixel SP can be connected to a first driving voltage line VDL supplied with a first driving voltage, a second driving voltage line VSL supplied with a second driving voltage, and a third driving voltage line VIL supplied with a third driving voltage. Here, the letters k and n are used instead of numbers, and are defined as positive integers not including 0 (zero).

[0096] Each display pixel SP can include a light emitting unit ELU and a pixel driving unit DDU. The light emitting unit ELU can include a light emitting element LEL. The pixel driving unit DDU can include a driving transistor DT, a switching element, and a capacitor CST1. The switching element includes a first transistor ST1 to a sixth transistor ST6.

[0097] The driving transistor DT can include a gate electrode, a first electrode, and a second electrode. The driving transistor DT controls a drain-source current (Ids) (hereinafter, referred to as a "driving current") flowing between the first electrode and the second electrode according to a data voltage applied to the gate electrode. As in Equation 1, the driving current (Ids) flowing through a channel of the driving transistor DT is proportional to the square of a difference between a voltage (Vsg) between the first electrode and the gate electrode of the driving transistor DT and a threshold voltage (Vth).

[0098] Equation 1 (1) In Equation 1, k' is a proportional coefficient determined by a structure and physical characteristics of the driving transistor DT, Vsg is a voltage between the first electrode and the gate electrode of the driving transistor DT, and Vth is a threshold voltage of the driving transistor DT.

[0099] The light emitting element LEL emits light according to a driving current (Ids). As the driving current (Ids) increases, the amount of light emitted from the light emitting element LEL can increase.

[0100] The light emitting element LEL can be an organic light emitting diode including an organic light emitting layer disposed between an anode and a cathode. In one or more embodiments, the light emitting element LEL can be an inorganic light emitting element including an inorganic semiconductor disposed between an anode and a cathode. In one or more embodiments, the light emitting element LEL can be a quantum dot light emitting element including a quantum dot light emitting layer disposed between an anode and a cathode. In one or more embodiments, the light emitting element LEL can be a micro light emitting diode including a micro light emitting diode disposed between an anode and a cathode.

[0101] The anode of the light emitting element LEL can be connected to the first electrode of the fourth transistor ST4 and the second electrode of the sixth transistor ST6, and the cathode can be connected to the second driving voltage line VSL. A parasitic capacitance Cel can be formed between the anode and the cathode of the light emitting element LEL.

[0102] The first transistor ST1 is turned on by an initialization scan signal of the kth display initialization line GILk to connect the gate electrode of the driving transistor DT to the third driving voltage line VIL. Accordingly, the third driving voltage of the third driving voltage line VIL can be applied to the gate electrode of the driving transistor DT. The first transistor ST1 can have a gate electrode connected to the kth display initialization line GILk, a first electrode connected to the gate electrode of the driving transistor DT, and a second electrode connected to the third driving voltage line VIL.

[0103] The second transistor ST2 is turned on by a display scan signal of the kth display scan line GLk to connect the first electrode of the driving transistor DT to the data line DL. Accordingly, the data voltage of the data line DL can be applied to the first electrode of the driving transistor DT. The second transistor ST2 can have a gate electrode connected to the kth display scan line GLk, a first electrode connected to the first electrode of the driving transistor DT, and a second electrode connected to the data line DL.

[0104] The third transistor ST3 is turned on by a display scan signal of the kth display scan line GLk to connect the gate electrode and the second electrode of the driving transistor DT. When the gate electrode and the second electrode of the driving transistor DT are connected, the driving transistor DT operates as a diode. The third transistor ST3 can have a gate electrode connected to the kth display scan line GLk, a first electrode connected to the second electrode of the driving transistor DT, and a second electrode connected to the gate electrode of the driving transistor DT.

[0105] The fourth transistor ST4 is turned on by a display control signal of the kth display control line GCLk to connect the anode of the light emitting element LEL to the third driving voltage line VIL. The third driving voltage of the third driving voltage line VIL can be applied to the anode of the light emitting element LEL. The fourth transistor ST4 can have a gate electrode connected to the kth display control line GCLk, a first electrode connected to the anode of the light emitting element LEL, and a second electrode connected to the third driving voltage line VIL.

[0106] The fifth transistor ST5 is turned on by an emission control signal of the kth emission control line VLk to connect the first electrode of the driving transistor DT to the first driving voltage line VDL. The fifth transistor ST5 can have a gate electrode connected to the kth emission control line VLk, a first electrode connected to the first driving voltage line VDL, and a second electrode connected to the first electrode of the driving transistor DT.

[0107] The sixth transistor ST6 is arranged between the second electrode of the driving transistor DT and the anode of the light emitting element LEL. The sixth transistor ST6 is turned on by an emission control signal of the kth emission control line VLk to connect the second electrode of the driving transistor DT to the anode of the light emitting element LEL. The sixth transistor ST6 can have a gate electrode connected to the kth emission control line VLk, a first electrode connected to the second electrode of the driving transistor DT, and a second electrode connected to the anode of the light emitting element LEL.

[0108] When both the fifth transistor ST5 and the sixth transistor ST6 are turned on, a driving current (Ids) of the driving transistor DT according to a data voltage applied to the gate electrode of the driving transistor DT can flow to the light emitting element LEL.

[0109] The capacitor CST1 is formed between the gate electrode of the driving transistor DT and the first driving voltage line VDL. A first capacitor electrode of the capacitor CST1 can be connected to the gate electrode of the driving transistor DT, and a second capacitor electrode can be connected to the first driving voltage line VDL.

[0110] When the first electrode of each of the first transistor ST1 to the sixth transistor ST6 and the driving transistor DT is a source electrode, the second electrode can be a drain electrode. In one or more embodiments, if (e.g., when) the first electrode of each of the first transistor ST1 to the sixth transistor ST6 and the driving transistor DT is a drain electrode, then the second electrode can be a source electrode.

[0111] The active layer of each of the first transistor ST1 to the sixth transistor ST6 and the driving transistor DT can be made of any one of polysilicon, amorphous silicon, and an oxide semiconductor. Although embodiments in which the first transistor ST1 to the sixth transistor ST6 and the driving transistor DT are formed as P-type (kind) metal oxide semiconductor field effect transistors (MOSFETs) have been mainly described in Figure 8

[0112] Each light sensing pixel LSP is electrically connected to an n-th sensing reset line RELn, an n-th light sensing scan line FSLn, and an n-th light sensing line RLn. Each light sensing pixel LSP can be reset by a reset signal from the n-th sensing reset line RELn, and can transmit a light sensing signal to the n-th light sensing line RLn in response to a sensing scan signal from the n-th light sensing scan line FSLn.

[0113] Each light sensing pixel LSP can be divided into a light sensing unit PDU including a light sensing unit PDU of a photodetector PD and a sensing drive unit FDU including a first sensing transistor RT1 to a third sensing transistor RT3 and a sensing capacitor. Here, the sensing capacitor can be formed in a structure in parallel with the photodetector PD.

[0114] The first sensing transistor RT1 of the sensing drive unit FDU can flow a light sensing current according to a voltage of the photodetector PD and the sensing capacitor. The amount of the light sensing current can vary according to the voltage applied to the photodetector PD and the sensing capacitor. The gate electrode of the first sensing transistor RT1 can be connected to the second electrode of the photodetector PD. The first electrode of the first sensing transistor RT1 can be connected to a common voltage source VCOM to which a common voltage is applied. The second electrode of the first sensing transistor RT1 can be connected to the first electrode of the second sensing transistor RT2.

[0115] ​If (for example, when) a sensing scan signal having a gate-on voltage is transmitted to the nth light sensing scan line FSLn, the second sensing transistor RT2 can cause the sensing current of the first sensing transistor RT1 to flow to the nth light sensing line RLn. In such an embodiment, the nth light sensing line RLn can be charged with a sensing voltage by the sensing current. The second sensing transistor RT2 can have a gate electrode connected to the nth light sensing scan line FSLn, a first electrode connected to the second electrode of the first sensing transistor RT1, and a second electrode connected to the nth light sensing line RLn.

[0116] If (for example, when) a reset signal having a gate-on voltage is transmitted to the nth sensing reset line RELn, the third sensing transistor RT3 can reset the voltage of the photodetector PD and the sensing capacitor to a reset voltage of the reset voltage source VRST. The third sensing transistor RT3 can have a gate electrode connected to the sensing reset line REL, a first electrode connected to the reset voltage source VRST, and a second electrode connected to the second electrode of the photodetector PD.

[0117] In Figure 8 , an embodiment in which the first sensing transistor RT1 and the second sensing transistor RT2 are formed as P-type (kind) MOSFETs and the third sensing transistor RT3 is formed as an N-type (kind) MOSFET has been mainly described. However, the present disclosure is not limited thereto, and the transistors can be formed as the same type (kind) or different types (kinds). In one or more embodiments, any one of the first electrode and the second electrode of each of the first sensing transistor RT1, the second sensing transistor RT2, and the third sensing transistor RT3 can be a source electrode, and the other can be a drain electrode.

[0118] Figure 9 is a flowchart showing a biometric information extraction process of the main driving circuit 200 according to one or more embodiments of the present disclosure. Figure 10 An image showing a pulse wave detection pattern region setting method of the main driving circuit 200 according to one or more embodiments of the present disclosure is shown.

[0119] Referring to Figure 9 and Figure 10, in order to detect the touch area of the user during the touch position detection period of the user, the main driving circuit 200 drives the display pixels SP or the infrared light emitting pixels ISP arranged in the biometric information measurement area FSA by controlling the scan signal output of the display scan driver 110 and the light sensing scan driver 120 by transmitting the scan control signal to the display scan driver 110 and the light sensing scan driver 120. In one or more embodiments, the main driving circuit 200 can detect the light sensing signal of the biometric information measurement area FSA through the light sensing pixels LSP. In such an embodiment, the main driving circuit 200 can determine the emission color and brightness (or emission waveband) of the display pixels SP or the infrared light emitting pixels ISP included in the biometric information measurement area FSA.

[0120] For example, the main driving circuit 200 supplies a data voltage to at least one data line DL so that the pixels that emit light of a real-time determined emission color or the pixels that emit infrared light among the display pixels SP and the infrared light emitting pixels ISP in the biometric information measurement area FSA can emit light having a real-time determined brightness or waveband. In one or more embodiments, the main driving circuit 200 sequentially controls the driving of the display scan driver 110 and the light sensing scan driver 120. In one or more embodiments, the main driving circuit 200 receives the light sensing signal input through at least one of the light sensing lines ERL.

[0121] As shown in Figure 10 The main driving circuit 200 converts the light sensing signal of the light sensing pixels LSP received through the light sensing pixels LSP of the biometric information measurement area FSA into light sensing signal data (i.e., digital data) (analog-to-digital conversion). Then, it generates the image data AA of the biometric information measurement area FSA by arranging the light sensing signal data of the biometric information measurement area FSA (operation SS1). The main driving circuit 200 can also generate the image data AA for the biometric information measurement area FSA in units of a plurality of frames (for example, each unit can be one frame) by continuously driving the display pixels SP or the infrared light emitting pixels ISP arranged in the biometric information measurement area FSA and receiving the light sensing signal of the light sensing pixels LSP in units of at least one frame period.

[0122] Next, the main driving circuit 200 separates and distinguishes the fingerprint image data BB and the blood vessel image data CC by comparing and analyzing the gray value or the brightness value of the light sensing signal data of each light sensing pixel LSP of the image data AA with the gray value or the brightness value of the light sensing signal data of at least one adjacent light sensing pixel LSP (operation SS2). Here, the blood vessel image data CC includes the light reflected by at least one blood vessel among the veins and the arteries (i.e., the light sensing signal data corresponding to the reception area of the light reflected by the blood vessel).

[0123] Next, the main driving circuit 200 separates and distinguishes the light sensing signal data reflected by the blood vessel and the placement area of the light sensing signal data (i.e., the blood vessel placement area) from the blood vessel image data CC, and sets the pulse wave detection pattern area corresponding to each placement area of the light sensing signal data (operation SS3). In other words, the main driving circuit 200 separates the blood vessel image data CC into the light sensing signal data reflected by the blood vessel and the position information about the placement (i.e., the placement area) of the blood vessel (where the data corresponding to each light sensing signal has the placement area), and then associates and maps the light sensing signal data reflected by the blood vessel to the placement area to generate a map of the imaged blood vessel and set the pulse wave detection pattern area to the area.

[0124] Here, the main driving circuit 200 generates the pulse wave detection pattern image data DD including only the gray value of the light sensing signal data by separating the light sensing signal data reflected by the blood vessel and the placement area of the light sensing signal data from the blood vessel image data CC. Then, the main driving circuit 200 sets the pulse wave detection pattern area in the display area DA or the biometric information measurement area FSA by detecting the coordinate information about the position of the light sensing signal data from the pulse wave detection pattern image data DD including only the gray value of the light sensing signal data.

[0125] The main driving circuit 200 stores the pulse wave detection pattern image data DD and the coordinate information about the position of the light sensing signal data in the built-in memory or the biometric information storage memory 500, respectively.

[0126] Figure 11 is an image showing a method of respectively setting a light emission area LPD and a light reception area BPD in the pulse wave detection pattern area shown in Figure 10

[0127] Referring to Figure 11 , the main driving circuit 200 can respectively generate and store the image data FF for the light reception area BPD of the pulse wave detection pattern area and the image data EE for the light emission area LPD of the pulse wave detection pattern area.

[0128] ​For example, the main driving circuit 200 divides a pulse wave detection pattern area (where the pulse wave detection pattern area corresponds to the display area DA or the biometric information measurement area FSA) into a light reception area BPD and a light emission area LPD, and calculates position coordinates of light sensing pixels LSP arranged to correspond to the light reception area BPD. In one or more embodiments, the main driving circuit 200 calculates position coordinates of display pixels SP or infrared light emitting pixels ISP arranged to correspond to the light emission area LPD.

[0129] The main driving circuit 200 stores position coordinate information of the display pixels SP or the infrared light emitting pixels ISP arranged to correspond to the light emission area LPD and position coordinate information of the light sensing pixels LSP arranged to correspond to the light reception area BPD in the built-in memory or the biometric information storage memory 500, respectively, according to information from the pulse wave detection pattern area.

[0130] Figure 12 FIG. 1 is a diagram illustrating a reflection light sensing area and a pulse wave detection pattern area distinguished in a display area DA according to one or more embodiments of the present disclosure.

[0131] Referring to Figure 12 , the main driving circuit 200 can induce a user to touch the display area DA, thereby providing a touch position and a touch area of the user by displaying the biometric information measurement area FSA in the display area DA during a biometric information detection period of the user.

[0132] In one or more embodiments, the main driving circuit 200 drives the display pixels SP or the infrared light emitting pixels ISP arranged to correspond to the light emission area LPD by controlling scan signal outputs of the display scan driver 110 and the light sensing scan driver 120 and supplying a data signal of a preset size to the display pixels SP or the infrared light emitting pixels ISP arranged to correspond to the light emission area LPD. In one or more embodiments, the main driving circuit 200 receives a light sensing signal through the light sensing pixels LSP arranged to correspond to the light reception area BPD by driving the light sensing pixels LSP arranged to correspond to the light reception area BPD.

[0133] The main driving circuit 200 can generate a pulse wave signal reflecting blood changes according to heartbeats using the light sensing signal received through the light sensing pixels LSP arranged to correspond to the light reception area BPD, and thus can measure biometric information such as blood pressure of the user according to a size and a change period of the pulse wave signal (operation SS4, as shown in Figure 9

[0134] ​Next, the main driving circuit 200 can generate result image data based on the result of measuring the biometric information in real time, and display the result image data as an image on the display panel 100 (operation SS5, as shown in Figure 9

[0135] Figure 13 is a flowchart illustrating a biometric information extraction process of the main driving circuit 200 according to one or more embodiments of the present disclosure. Figure 14 is an image illustrating a pulse wave detection pattern region setting method of the main driving circuit 200 according to one or more embodiments of the present disclosure.

[0136] Referring to Figure 13 and Figure 14 , in order to detect a touch region of a user during a touch position detection period of the user, the main driving circuit 200 drives display pixels SP or infrared light emitting pixels ISP arranged in the biometric information measurement region FSA by controlling the scan signal output of the display scan driver 110 and the light sensing scan driver 120. In one or more embodiments, the main driving circuit 200 can detect a light sensing signal of the biometric information measurement region FSA through the light sensing pixels LSP.

[0137] As shown in Figure 14 , the main driving circuit 200 converts a light sensing signal of the light sensing pixels LSP received through the light sensing pixels LSP of the biometric information measurement region FSA into light sensing signal data (analog-to-digital conversion). Then, it generates image data AA for the biometric information measurement region FSA by arranging the light sensing signal data of the biometric information measurement region FSA (operation SS1).

[0138] The main driving circuit 200 can also generate image data AA for the biometric information measurement region FSA in units of a plurality of frames (for example, each unit can be one frame) by continuously driving display pixels SP or infrared light emitting pixels ISP arranged in the biometric information measurement region FSA and receiving light sensing signals of the light sensing pixels LSP in units of at least one frame period.

[0139] Next, the main driving circuit 200 separates and distinguishes the fingerprint image data BB and the blood vessel image data CC by comparing and analyzing the gray value or the brightness value of the light sensing signal data of each infrared light emitting pixel ISP of the image data AA with the gray value or the brightness value of at least one adjacent light sensing pixel LSP (operation SS2).

[0140] ​Next, the main driving circuit 200 separates and distinguishes the light sensing signal data reflected by the blood vessels and the placement area of the light sensing signal data (i.e., the blood vessel placement area) from the blood vessel image data CC, and sets a pulse wave detection pattern area corresponding to each placement area of the light sensing signal data (operation SS3).

[0141] Here, the main driving circuit 200 generates the pulse wave detection pattern image data DD including only the gray scale values of the light sensing signal data by separating the light sensing signal data reflected by the blood vessels and the placement area of the light sensing signal data from the blood vessel image data CC. Then, the main driving circuit 200 sets the pulse wave detection pattern area in the display area DA or the biometric information measurement area FSA by detecting coordinate information about the position of the light sensing signal data from the pulse wave detection pattern image data DD including only the gray scale values of the light sensing signal data.

[0142] The main driving circuit 200 stores the pulse wave detection pattern image data DD and the coordinate information about the position of the light sensing signal data in the built-in memory or the biometric information storage memory 500, respectively.

[0143] Figure 15 FIG. 1 is a diagram illustrating a user recognition method using a pulse wave detection pattern area according to one or more embodiments of the present disclosure.

[0144] Referring to Figure 15 The main driving circuit 200 compares the pulse wave detection pattern image data DD and the coordinate information about the position of the light sensing signal data with the pulse wave detection pattern image data DD and the coordinate information about the position of the light sensing signal data of the user stored in the built-in memory or the biometric information storage memory 500, respectively, and analyzes and recognizes the user based on whether they match according to the comparison result (operation SS3_1).

[0145] The main driving circuit 200 determines whether to proceed with the biometric information measurement process based on the result of the user analysis and recognition (operation SS3_2).

[0146] The main driving circuit 200 can generate and store the image data FF for the light receiving area BPD of the pulse wave detection pattern area and the image data EE for the light emitting area LPD of the pulse wave detection pattern area, respectively.

[0147] For example, the main driving circuit 200 divides a pulse wave detection pattern region set to correspond to the display region DA or the biometric information measurement region FSA into a light reception region BPD and a light emission region LPD, and calculates position coordinates of the light sensing pixels LSP arranged to correspond to the light reception region BPD. In one or more embodiments, the main driving circuit 200 calculates position coordinates of the display pixels SP or the infrared light emitting pixels ISP arranged to correspond to the light emission region LPD.

[0148] The main driving circuit 200 stores position coordinate information of the display pixels SP or the infrared light emitting pixels ISP arranged to correspond to the light emission region LPD and position coordinate information of the light sensing pixels LSP arranged to correspond to the light reception region BPD among information about the pulse wave detection pattern region in the built-in memory or the biometric information storage memory 500 (see, for example Figure 1 ) respectively.

[0149] The main driving circuit 200 can compare the position coordinates of the light sensing pixels LSP arranged to correspond to the light reception region BPD and the position coordinates of the display pixels SP or the infrared light emitting pixels ISP arranged to correspond to the light emission region LPD with the position coordinates of the light sensing pixels LSP and the position coordinates of the infrared light emitting pixels ISP for each user respectively stored in the built-in memory or the biometric information storage memory 500, and can analyze and identify the user based on whether they match according to the comparison result.

[0150] The main driving circuit 200 can induce the user to touch the display region DA, thereby providing a touch position and a touch region of the user by displaying the biometric information measurement region FSA in the display region DA during a biometric information detection period of the user.

[0151] In one or more embodiments, the main driving circuit 200 drives the display pixels SP or the infrared light emitting pixels ISP arranged to correspond to the light emission region LPD by controlling scan signal outputs of the display scan driver 110 and the light sensing scan driver 120 and supplying a data signal of a preset size to the display pixels SP or the infrared light emitting pixels ISP arranged to correspond to the light emission region LPD. In one or more embodiments, the main driving circuit 200 receives a light sensing signal through the light sensing pixels LSP arranged to correspond to the light reception region BPD by driving the light sensing pixels LSP arranged to correspond to the light reception region BPD.

[0152] Figure 16 is a diagram for explaining a method of calculating blood pressure information from biometric information according to one or more embodiments of the disclosure.

[0153] The main driving circuit 200 can generate a pulse wave signal reflecting blood changes according to a heartbeat using a light sensing signal received through the light sensing pixels LSP arranged to correspond to the light reception area BPD, and thus can measure biological feature information such as blood pressure of a user according to the size and change period of the pulse wave signal (operation SS4).

[0154] For example, during a contraction of the heart, blood expelled from the left ventricle of the heart moves to peripheral tissues, and thus increases the amount of blood on the arterial side. Also, during the contraction of the heart, red blood cells carry more oxyhemoglobin to the peripheral tissues. During a diastole of the heart, there is partial blood suction from the peripheral tissues toward the heart. When light is irradiated to a peripheral blood vessel (or referred to as a "peripheral vessel"), the irradiated light is absorbed by the peripheral tissues. The absorbance depends on the hematocrit and the blood volume. The absorbance can have a maximum value during a contraction of the heart, and a minimum value during a diastole of the heart. Thus, the light detected by the photodetector PD can be least during a contraction of the heart, and most during a diastole of the heart.

[0155] In one or more embodiments, if (for example, when) a user places a finger on the display panel 100 in a blood pressure measurement mode and then removes the finger, the pressure (contact pressure) applied to the pressure sensing unit PSU can gradually increase, reach a maximum value, and then gradually decrease. If the contact pressure increases, the blood vessels can contract, causing blood flow to decrease or become zero. If the contact pressure decreases, the blood vessels can dilate, causing blood to flow again. If the contact pressure further decreases, the blood flow further increases. Thus, the amount of light detected by the light sensing pixels LSP can change in proportion to the change in blood flow. Accordingly, the main driving circuit 200 generates a pulse wave signal PPG according to the pressure applied by the user based on the pressure data value calculated and digitally converted by the analog-digital conversion of the pressure sensing unit PSU and the light signal (PPG signal ratio) according to the amount of light detected by the photodetector PD. The pulse wave signal PPG can have a waveform that vibrates according to a heartbeat period.

[0156] The main driving circuit 200 can estimate the blood pressure of the blood vessel of the finger based on a time difference between a time point PKT corresponding to the peak value PK of the generated pulse wave signal PPG and a time point corresponding to the peak value of the filtered pulse wave. For example, the main driving circuit 200 can generate a pulse wave signal during preset periods T1 and T2 before and after the time point PKT corresponding to the peak value PK of the generated pulse wave signal PPG, and detect the blood pressure from a difference between the pulse wave signals PPG. Among the estimated blood pressures, the highest blood pressure can be calculated as the systolic pressure, and the lowest blood pressure can be calculated as the diastolic pressure. In one or more embodiments, other blood pressures such as mean blood pressure can be calculated using the estimated blood pressures.

[0157] Figure 17 is a diagram for explaining a method of calculating information about a heartbeat and respiration from biometric information according to one or more embodiments of the present disclosure.

[0158] Referring to Figure 17 , the main driving circuit 200 samples the pulse wave signal PPG during preset sampling periods before and after the time point PKT corresponding to the peak value PK of the pulse wave signal PPG, and detects a generation period HT of a high pulse of the sampled pulse wave signal PPG. In one or more embodiments, the main driving circuit 200 can detect biometric information about a heartbeat period and a heart rate (HR) by counting the number of high pulses generated for each preset reference period (e.g., 60 seconds) of the sampled pulse wave signal PPG.

[0159] In one or more embodiments, the main driving circuit 200 detects a heart rate variation (HRV) according to a heartbeat period variation rate by detecting a generation period HT of a high pulse of the peak value PK of the sampled pulse wave signal PPG and a generation period variation (t1 to t4) for each preset reference period.

[0160] In one or more embodiments, the main driving circuit 200 sequentially detects a generation period of a low pulse and a size value of the low pulse with respect to the sampled pulse wave signal PPG. In one or more embodiments, it can detect a respiration variation state and a respiration rate (RR) of the user by detecting a variation period of the size value dcs of the low pulse for each preset reference period (e.g., 60 seconds). Here, the rising period of the size value dcs of the low pulse and the falling period of the size value dcs of the low pulse can be analyzed to detect the respiration variation state and the respiration rate (RR) of the user at the rising period and the falling period of the size value dcs of the low pulse.

[0161] Figure 18 is a diagram for explaining a method of calculating information about a blood vessel elasticity from biometric information according to one or more embodiments of the present disclosure.

[0162] Referring to Figure 18 , the main driving circuit 200 can set and derive blood vessel elasticity (BVE) by amplifying and analyzing the high pulse fluctuation form of the sampled pulse wave signal PPG.

[0163] When blood flow increases due to a heartbeat, the pulse wave signal PPG becomes a high pulse form. When the blood flow decreases, the pulse wave signal PPG again becomes a low pulse form. If the blood flow sharply changes due to the shape of the blood vessel during the period in which the blood flow increases or decreases, the change in the blood flow can quickly or slowly calm down depending on the elasticity of the blood vessel. Accordingly, the main driving circuit 200 amplifies and analyzes the high pulse fluctuation form of the pulse wave signal PPG, and sets and derives the blood vessel elasticity as a value corresponding to the fluctuation size of the high pulse.

[0164] Figure 19 is a diagram for explaining a method of calculating information on a cardiovascular disease from biometric information according to one or more embodiments of the present disclosure.

[0165] Referring to Figure 19 , the main driving circuit 200 can set and derive an evaluation score of a cardiovascular disease (or a cardiovascular health analysis result score) by distinguishing and amplifying and analyzing the high pulse fluctuation form of the sampled pulse wave signal PPG. For example, the main driving circuit 200 detects a period (crest time) during which the pulse wave signal PPG reaches a peak PK in a high pulse form and a time change (Δt) of the pulse wave signal PPG during which the pulse wave signal PPG decreases with respect to the period (crest time) during which the pulse wave signal PPG reaches a peak PK in a high pulse form. The longer the period (crest time) during which the pulse wave signal PPG reaches a peak PK in a high pulse form, the greater the risk of a heart disease. Accordingly, the main driving circuit 200 can set and derive the evaluation score of a cardiovascular disease (or a cardiovascular health analysis result score) in inverse proportion to the period (crest time) during which the pulse wave signal PPG reaches a peak PK in a high pulse form.

[0166] Figure 20 is a diagram for explaining a method of calculating information on oxygen saturation from biometric information according to one or more embodiments of the present disclosure.

[0167] Referring to Figure 20During the contraction of the heart, red blood cells carry more oxygenated hemoglobin (HbO2) to peripheral tissues. In contrast, during the diastole of the heart, there is partial blood suction from the peripheral tissues toward the heart. Thus, the main driving circuit 200 detects the deoxyhemoglobin (Hb) level based on the change in the size of the pulse wave signal PPG detected by the green light, and detects the oxygenated hemoglobin (HbO2) level based on the change in the size of the pulse wave signal PPG detected by the red light.

[0168] The main driving circuit 200 can detect the oxygen saturation (SpO2) using Equation 2.

[0169] Equation 2 (2) Figure 21 Results of measuring the biometric information using the display device according to one or more embodiments of the present disclosure are shown.

[0170] Referring to Figure 21 , the main driving circuit 200 can generate result image data based on the result of measuring the biometric information in real time, and display the result image data as an image on the display panel 100 (operation SS5, as shown in Figure 13 ).

[0171] For example, the main driving circuit 200 can display the biometric information (biomarker) such as blood pressure (BP), heart rate (HR), heart rate variability (HRV), respiratory rate (RR), blood vessel elasticity (BVE), cardiovascular disease (or cardiovascular health analysis result score), and / or oxygen saturation (SpO2) on the application screen.

[0172] 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 this disclosure belongs. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the relevant art and / or the present specification, and should not be interpreted in an idealized or overly formal sense unless expressly so defined herein.

[0173] Also, when describing embodiments of the present disclosure, the use of "may" indicates "one or more embodiments of the present disclosure."

[0174] As used herein, the terms “substantially,” “about,” and similar terms are used as approximating terms not as terms of degree, and are intended to account for the inherent deviations in measured or calculated values that would be recognized by those of ordinary skill in the art. As used herein, “substantially” includes the stated value and means within an acceptable range of deviations for a particular value as determined by one of ordinary skill in the art to account for such inherent and / or experimental errors associated with making the measurements and with the measurement of the value in question (i.e., limitations of the measurement system). For example, “substantially” can mean within one or more standard deviations, or within ±30%, ±20%, ±10%, ±5% of the stated value.

[0175] A light emitting device, electronic device, or any other related device or component according to embodiments of the present disclosure described herein can be implemented using any suitable hardware, firmware (e.g., an application specific integrated circuit), software, or a combination of software, firmware, and hardware. For example, various components of the device can be formed on one integrated circuit (IC) chip, or on separate IC chips. Also, various components of the device can be implemented on a flexible printed circuit film, a tape carrier package (TCP), a printed circuit board (PCB), or formed on one substrate. Further, various components of the device can be a process or thread, running on one or more processors, in one or more computing devices, executing computer program instructions and interacting with other system components for performing the various functions described herein. The computer program instructions are stored in a memory which can be implemented in a computing device using a standard memory device, such as random access memory (RAM). The computer program instructions can also be stored in other non- transitory computer readable media such as, for example, a CD-ROM or a flash drive, etc. Also, those skilled in the art will appreciate that functions of various computing devices can be combined or integrated into a single computing device, or functions of a particular computing device can be distributed across one or more other computing devices, without departing from the scope of embodiments of the present disclosure.

[0176] In view of the completeness of the present disclosure, those of ordinary skill in the art will appreciate that each suitable feature of various embodiments of the present disclosure can be combined, in part or in whole, with each other, unless

[0177] It will be understood that the description of features or aspects within each embodiment is generally applicable to other similar features or aspects in other embodiments unless specifically described otherwise. Thus, as will be apparent to those of ordinary skill in the art, features, characteristics, and / or elements described in connection with a particular embodiment can be used singly or in combination with features, characteristics, and / or elements described in connection with other embodiments, unless specifically noted otherwise. It will be understood that the foregoing is a description of various example embodiments and that the above-described embodiments are not to be construed as limiting but rather are intended to be illustrative only, and that modifications to the disclosed embodiments, as well as other example embodiments, are intended to be within the scope of the disclosure defined by the appended claims and their equivalents.

Claims

1. A display device, the display device comprising: Display panel; Display pixels are located in the display area of ​​the display panel; A light-sensing pixel, together with the display pixel, is located in the display area; Infrared emitting pixels, together with the display pixels, are located in the display area; A display scanning driver is provided to drive the display pixels and the infrared emitting pixels to emit light; A light-sensing scanning driver is used to drive the light-sensing pixels to detect light; as well as The main driving circuit is used to detect the user's pulse wave signal and measure biometric information using the photosensitive signal received through the photosensitive pixel. The main driving circuit is configured to separate and generate vascular image data from image data of the touch area during the user's touch position detection period, and to receive the light sensing signal of the light receiving area by distinguishing the light receiving area based on the vascular image data in the display area during the user's biometric information detection period.

2. The display device according to claim 1, wherein, The main driving circuit is configured to display the biometric information measurement area as an application screen in the display area, drive the display pixels or the infrared emitting pixels in the biometric information measurement area by controlling the scan signal output of the display scan driver and the light sensing scan driver, and receive the light sensing signal through the light sensing pixels in the biometric information measurement area.

3. The display device according to claim 2, wherein, The main driving circuit is configured to convert the light sensing signal received by the light sensing pixel through the light sensing pixel of the biometric information measurement area into digital light sensing signal data, and to generate image data of the biometric information measurement area in units of multiple frames by arranging the light sensing signal data.

4. The display device according to claim 3, wherein, The main driving circuit is configured to separate and divide the image data into fingerprint image data and vascular image data by comparing and analyzing the gray value or brightness value of the light sensing signal data of each light sensing pixel included in the image data with the gray value or brightness value of the light sensing signal data of at least one adjacent light sensing pixel.

5. The display device according to claim 4, wherein, The main driving circuit is configured to separate and distinguish the light-sensing signal data reflected by the blood vessels and the placement area of ​​the light-sensing signal data from the blood vessel image data, and generate pulse wave detection pattern area and pulse wave detection pattern image data that include only the grayscale value of the light-sensing signal data and the placement area of ​​the light-sensing signal data.

6. The display device according to claim 5, wherein, The main drive circuit is configured to set the pulse wave detection pattern area in the display area or the biometric information measurement area by detecting coordinate information about the position of the light sensing signal data from the pulse wave detection pattern image data, and to store the pulse wave detection pattern image data and the coordinate information about the position of the light sensing signal data in the built-in memory or the biometric information storage memory, respectively.

7. The display device according to claim 6, wherein, The main drive circuit is configured to compare the pulse wave detection pattern image data and the coordinate information of the position of the light sensing signal data with the pulse wave detection pattern image data and the coordinate information of the position of the light sensing signal data of the user, which are respectively stored in the built-in memory or the biometric information storage memory, and to analyze and identify the user based on whether there is a match according to the comparison result.

8. The display device according to claim 6, wherein, The main driving circuit is configured to divide the pulse wave detection pattern area into a light receiving area and a light emitting area, calculate the position coordinates of the light sensing pixel corresponding to the light receiving area, calculate the position coordinates of the display pixel or the infrared emitting pixel corresponding to the light emitting area, and store the position coordinate information of the display pixel or the infrared emitting pixel corresponding to the light emitting area and the position coordinate information of the light sensing pixel corresponding to the light receiving area in the built-in memory or the biometric information storage memory, respectively.

9. A display device, the display device comprising: Display panel; Display pixels are located in the display area of ​​the display panel; A light-sensing pixel, together with the display pixel, is located in the display area; Infrared emitting pixels, together with the display pixels, are located in the display area; A display scanning driver is provided to drive the display pixels and the infrared emitting pixels to emit light; A light-sensing scanning driver is used to drive the light-sensing pixels to detect light; as well as The main driving circuit is used to detect the user's pulse wave signal and measure biometric information using the photosensitive signal received through the photosensitive pixel. The main driving circuit is configured to display the biometric information measurement area as an application screen in the display area, drive the display pixels or the infrared emitting pixels in the biometric information measurement area by controlling the scan signal output of the display scan driver and the light sensing scan driver, and receive the light sensing signal through the light sensing pixels in the biometric information measurement area.

10. An electronic device, the electronic device comprising: A display device, the display device comprising: Display panel; Display pixels are located in the display area of ​​the display panel; A light-sensing pixel, together with the display pixel, is located in the display area; Infrared emitting pixels, together with the display pixels, are located in the display area; A display scanning driver is provided to drive the display pixels and the infrared emitting pixels to emit light; A light-sensing scanning driver for driving the light-sensing pixel to detect light; and The main driving circuit is used to detect the user's pulse wave signal and measure biometric information using the photosensitive signal received through the photosensitive pixel. The main driving circuit is configured to separate and generate vascular image data from image data of the touch area during the user's touch position detection period, and to receive the light sensing signal of the light receiving area by distinguishing the light receiving area based on the vascular image data in the display area during the user's biometric information detection period.

Images