Display apparatus and method of controlling the same

Abstract

The invention relates to a display apparatus and a method of controlling the display apparatus. In a method of controlling a display apparatus, the display apparatus includes a display panel in which a display area is defined and the display panel includes a plurality of pixels and a plurality of sensors, and an input sensing layer on the display panel and sensing an external input, the method includes: allowing a first pixel of a first sensing area to emit light; sensing first biological characteristic information; matching the first biological characteristic information with stored first authentication information; allowing a second pixel of the second sensing area to emit light; sensing second biological characteristic information; matching the second biological characteristic information with stored second authentication information; and driving the display panel.

Description

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This application claims priority to and the benefit of Korean Patent Application No. 10-2023-0150236 filed in the Korean Intellectual Property Office on November 2, 2023, the disclosure of which is incorporated herein in its entirety by reference. Technical Field

[0003] Aspects of some embodiments of the present disclosure described herein relate to a display device having relatively improved security strength and a method of controlling the display device. Background Art

[0004] The display device displays an image so that information is provided to a user or provides various functions that enable organic communication with the user, such as a function of sensing an input of the user. The display device may also include a function for sensing biometric information of the user.

[0005] Biometric information can be recognized by using a capacitive method of sensing a change in capacitance formed between electrodes, an optical method of sensing incident light through a photo sensor, an ultrasonic method of sensing vibration using a piezoelectric body, and the like.

[0006] The above information disclosed in this Background section is only for enhancement of understanding of the background technology and therefore the information discussed in this Background section does not necessarily constitute prior art. Summary of the invention

[0007] Aspects of some embodiments of the present disclosure include a display device having relatively improved security strength and a method of controlling the display device.

[0008] According to some embodiments, a method for controlling a display device is provided, the display device including a display panel and an input sensing layer, a display area is defined in the display panel and the display panel includes a plurality of pixels and a plurality of sensors, the input sensing layer is on the display panel and senses external input, the method may include: allowing a first pixel among the plurality of pixels to emit light, the first pixel being in a first sensing area of ​​the display area overlapping with the external input; sensing first biometric information from the external input at a first sensor among the plurality of sensors; the first sensor being in the first sensing area; matching the first biometric information with stored first authentication information; allowing a second pixel among the plurality of pixels to emit light, the second pixel being in a second sensing area of ​​the display area, the second sensing area overlapping with the external input and different from the first sensing area; sensing second biometric information from the external input different from the first biometric information at a second sensor among the plurality of sensors, the second sensor being in the second sensing area; matching the second biometric information with second authentication information different from the stored first authentication information; and driving the display panel when the first biometric information matches the first authentication information or when the second biometric information matches the second authentication information.

[0009] According to some embodiments, when the first biometric information and the first authentication information do not match each other, allowing the second pixel to emit light may be performed.

[0010] According to some embodiments, the external input may include a user's hand, and the first biometric information may include a fingerprint of a thumb of the user's hand.

[0011] According to some embodiments, the second biometric information may include a fingerprint of an index finger of a user's hand.

[0012] According to some embodiments, the second biometric information may include a palm of the user.

[0013] According to some embodiments, the display device may further include a sensing unit for sensing the direction of the display device, the method may further include sensing the direction of the display device at the sensing unit, and sensing the direction of the display device may include allowing a first pixel of a first sensing area to emit light when the display device is in a forward direction.

[0014] According to some embodiments, allowing a first pixel to emit light may include: sensing coordinates of an external input at an input sensing layer; defining a first sensing area based on the coordinates; and allowing a first pixel among a plurality of pixels overlapping the first sensing area to emit light.

[0015] According to some embodiments, the first pixel may be adjacent to the first sensor, and the second pixel may be adjacent to the second sensor.

[0016] According to some embodiments, the display area may include: a first area including a first edge, a second edge extending in a direction intersecting the first edge, a third edge parallel to the first edge, and a fourth edge parallel to the second edge; a second area extending from the first edge, and at least a portion of the second area is bent; a third area extending from the second edge, and at least a portion of the third area is bent; a fourth area extending from the third edge, and at least a portion of the fourth area is bent; and a fifth area extending from the fourth edge, and at least a portion of the fifth area is bent.

[0017] According to some embodiments, the first sensing region and the second sensing region may overlap with the third region.

[0018] According to some embodiments, the first sensing region may overlap with the third region, and the second sensing region may overlap with the fifth region.

[0019] According to some embodiments, the first sensing region may overlap with the third region, and the second sensing region may overlap with the fourth region.

[0020] According to some embodiments, the first authentication information may include first biometric information and information corresponding to the first sensing area.

[0021] According to some embodiments, the method may further include: allowing a third pixel among the multiple pixels to emit light, the third pixel being in a third sensing area of ​​the display area, the third sensing area overlapping with the external input and being different from the first sensing area and the second sensing area; sensing third biometric information different from the first biometric information and the second biometric information from the external input at a third sensor among the multiple sensors, the third sensor being in the third sensing area; and matching the third biometric information with third authentication information different from the stored first authentication information and the second authentication information.

[0022] According to some embodiments, a display device may include: a display panel, in which a display area and a non-display area adjacent to the display area are defined, and includes a plurality of pixels and a plurality of sensors; an input sensing layer, on the display panel and sensing an external input; a drive controller, driving the display panel; a readout circuit, electrically connected to the plurality of sensors, and outputting a sensing signal to the drive controller; and a main drive unit, driving the drive controller. According to some embodiments, the external input may overlap with the display area, and a first sensing area and a second sensing area different from the first sensing area may be defined. According to some embodiments, a first sensor in the first sensing area of ​​the plurality of sensors may sense first biometric information from the external input, the drive controller may match the first biometric information with the stored first authentication information, a second sensor in the second sensing area of ​​the plurality of sensors may sense second biometric information from the external input, the drive controller may match the second biometric information with the stored second authentication information, and when the first biometric information matches the first authentication information or when the second biometric information matches the second authentication information, the main drive unit and the drive controller drive the display panel.

[0023] According to some embodiments, the external input may include a user's hand, and the first biometric information may include a thumbprint of the user's hand, and the second biometric information may include a palm of the user's hand.

[0024] According to some embodiments, the display area may include: a first area including a first edge, a second edge extending in a direction intersecting the first edge, a third edge parallel to the first edge, and a fourth edge parallel to the second edge; a second area extending from the first edge, and at least a portion of the second area is bent; a third area extending from the second edge, and at least a portion of the third area is bent; a fourth area extending from the third edge, and at least a portion of the fourth area is bent; and a fifth area extending from the fourth edge, and at least a portion of the fifth area is bent.

[0025] According to some embodiments, the first sensing region and the second sensing region may overlap with the third region.

[0026] According to some embodiments, the first sensing region may overlap with the third region, and the second sensing region may overlap with the fifth region.

[0027] According to some embodiments, the first authentication information may include first biometric information and information corresponding to the first sensing area. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] The above and other aspects and features according to embodiments of the present disclosure will become more apparent by describing aspects of some embodiments of the present disclosure in more detail with reference to the accompanying drawings.

[0029] Figure 1 is a perspective view showing a display device according to some embodiments of the present disclosure.

[0030] Figure 2 is an exploded perspective view showing a display device according to some embodiments of the present disclosure.

[0031] Figure 3 is a cross-sectional view of a display device according to some embodiments of the present disclosure.

[0032] Figure 4 is a block diagram illustrating a display device according to some embodiments of the present disclosure.

[0033] Figure 5 is a block diagram illustrating a portion of a display device according to some embodiments of the present disclosure.

[0034] Figure 6 is an enlarged plan view showing a partial area of ​​a display area according to some embodiments of the present disclosure.

[0035] Figure 7 is a circuit diagram showing pixels and sensors according to some embodiments of the present disclosure.

[0036] Figure 8 According to some embodiments of the present disclosure, Figure 6 A cross-sectional view of a pixel and a sensor of a display panel taken along line II'.

[0037] Fig. 9 is a flowchart illustrating a method of controlling a display device according to some embodiments of the present disclosure.

[0038] Fig.10 is a conceptual diagram illustrating a display device and a user's hand according to some embodiments of the present disclosure.

[0039] Fig.11 is a conceptual diagram illustrating a display device and a user's hand according to some embodiments of the present disclosure.

[0040] Fig.12 is a conceptual diagram illustrating a display device and a user's hand according to some embodiments of the present disclosure. DETAILED DESCRIPTION

[0041] In this specification, the statement that a first component (or region, layer, part or portion) is "on", "connected to" or "coupled to" a second component means that the first component is directly on / directly connected to / directly coupled to the second component, or means that a third component is interposed therebetween.

[0042] The same reference numerals represent the same components. In addition, in the drawings, the thickness, proportion and size of the components may be exaggerated to effectively describe the technical features. The expression "and / or" includes one or more combinations that the associated components can define.

[0043] Although the terms "first", "second", etc. may be used to describe various components, these components should not be construed as being limited by these terms. These terms are only used to distinguish one component from another. For example, a first component may be referred to as a "second component" without departing from the scope and spirit of the present invention, and similarly, a second component may be referred to as a "first component". Singular forms are intended to include plural forms unless the context clearly indicates otherwise.

[0044] In addition, the terms "under", "below", "on", "above" and the like are used to describe the relationship between components shown in the drawings. Conceptually relative terms are described based on the directions shown in the drawings.

[0045] It will also be understood that the terms "includes," "comprising," "having," etc. specify the presence of stated features, quantities, steps, operations, elements, components, or a combination thereof, but do not exclude the presence or addition of one or more other features, quantities, steps, operations, elements, components, or a combination thereof.

[0046] Unless otherwise defined, all terms (including technical terms and scientific terms) used in the specification have the same meaning as commonly understood by those skilled in the art to which the present disclosure belongs. In addition, terms (such as those defined in commonly used dictionaries) should be interpreted as having a meaning consistent with the meaning in the context of the relevant technology, and should not be interpreted as an ideal or overly formal meaning unless explicitly defined in this article.

[0047] Hereinafter, aspects of some embodiments of the present disclosure will be described in more detail with reference to the accompanying drawings.

[0048] Figure 1 is a perspective view of a display device according to some embodiments of the present disclosure.

[0049] refer to Figure 1, the display device DD may be a device activated according to an electrical signal. The display device DD may include various embodiments. For example, the display device DD may include small or medium-sized electronic devices such as mobile phones, tablet computers, car navigation systems, game consoles, or smart watches, and large electronic devices such as televisions or monitors. An embodiment in which the display device DD is a smart phone is shown as an example.

[0050] A display area DA may be defined in the display device DD. The display area DA may include a first display area DA1, a second display area DA2, a third display area DA3, a fourth display area DA4, and a fifth display area DA5.

[0051] The first display area DA1 may be parallel to a surface defined by the first direction DR1 and the second direction DR2. The normal direction of the first display area DA1 may correspond to the thickness direction of the display device DD (hereinafter referred to as the "third direction DR3"). According to some embodiments, the front surface (or upper surface / top surface) and the rear surface (or lower surface / bottom surface) of each member may be defined relative to the third direction DR3. The front surface and the rear surface may be opposite to each other in the third direction DR3. The third direction DR3 may be a direction intersecting with a plane defined by the first direction DR1 and the second direction DR2. The first direction DR1, the second direction DR2, and the third direction DR3 may intersect at right angles.

[0052] On the other hand, the directions indicated by the first direction DR1, the second direction DR2, and the third direction DR3 may be conceptually relative and may be changed to different directions. In addition, in the present specification, the surface defined by the first direction DR1 and the second direction DR2 may be defined as a plane, and the expression "when viewed from above the plane" or "in a plan view" may be defined as "when viewed in the third direction DR3".

[0053] The second display area DA2 may extend from a first side of the first display area DA1. The third display area DA3 may extend from a second side of the first display area DA1. The fourth display area DA4 may extend from a third side of the first display area DA1. The fifth display area DA5 may extend from a fourth side of the first display area DA1.

[0054] Each of the second display area DA2 , the third display area DA3 , the fourth display area DA4 , and the fifth display area DA5 may be curved with a given curvature.

[0055] In the display device DD, the area of ​​the display area DA recognized by the user may be increased by the second to third to fourth to fifth display areas DA2, DA3, DA4, and DA5 that are curved with a given curvature.

[0056] The image IM can be displayed in the display area DA. Figure 1 IM. For example, a clock window and an icon are shown as examples of the image IM. For example, a clock window may be displayed in the first display area DA1, and icons may be displayed in some of the second display area DA2, the third display area DA3, the fourth display area DA4, and the fifth display area DA5.

[0057] Figure 2 is an exploded perspective view of a display device according to some embodiments of the present disclosure, and Figure 3 is a cross-sectional view of a display device according to some embodiments of the present disclosure.

[0058] refer to Figure 2 and Figure 3 , the display device DD may include a window WM, an optical film POL, a display module DM, a printed circuit board PCB-M, a support member SPT, and a frame FRM.

[0059] The window WM may be located on the display panel DP. The window WM may protect the display panel DP from external impact. The window WM may include a transparent material. For example, the window WM may include glass or a transparent synthetic resin or other transparent material (eg, an insulating transparent material).

[0060] The window WM may include transmission areas TA1, TA2, TA3, TA4, and TA5. The transmission areas TA1, TA2, TA3, TA4, and TA5 may include first, second, third, fourth, and fifth transmission areas TA1, TA2, TA3, TA4, and TA5.

[0061] The first transmission area TA1 may be parallel to a surface defined by the first direction DR1 and the second direction DR2. The first transmission area TA1 may include a first edge ED1 extending in a direction parallel to the first direction DR1, a second edge ED2 extending from the first edge ED1 in a direction parallel to the second direction DR2, a third edge ED3 extending from the second edge ED2 in a direction parallel to the first direction DR1, and a fourth edge ED4 extending from the third edge ED3 in a direction parallel to the second direction DR2. The first edge ED1 and the third edge ED3 may be parallel to each other, and the second edge ED2 and the fourth edge ED4 may be parallel to each other.

[0062] The second transmission area TA2 may extend from the first edge ED1 of the first transmission area TA1. The third transmission area TA3 may extend from the second edge ED2 of the first transmission area TA1. The fourth transmission area TA4 may extend from the third edge ED3 of the first transmission area TA1. The fifth transmission area TA5 may extend from the fourth edge ED4 of the first transmission area TA1.

[0063] At least a portion of each of the second, third, fourth, and fifth transmission areas TA2, TA3, TA4, and TA5 may be bent with a given curvature.

[0064] The optical film POL may be located between the window WM and the display module DM. For example, the optical film POL may be a polarizing film. The polarizing film may reduce the reflectivity of external light incident through the window WM. The optical film POL may include a plurality of color filters and a black matrix, and may be located on the input sensing layer ISL.

[0065] The display module DM may be a module that generates an image IM (refer to Figure 1 ) components.

[0066] A first area AR1 , a second area AR2 , a third area AR3 , a fourth area AR4 , a fifth area AR5 , and a sixth area AR6 may be defined in the display module DM.

[0067] The first area AR1 may be parallel to a surface defined by the first direction DR1 and the second direction DR2. The first area AR1 may include a first edge ED11 extending in a direction parallel to the first direction DR1, a second edge ED12 extending in a direction parallel to the second direction DR2, a third edge ED13 extending in a direction parallel to the first direction DR1, and a fourth edge ED14 extending in a direction parallel to the second direction DR2. The first edge ED11 and the third edge ED13 may be parallel to each other, and the second edge ED12 and the fourth edge ED14 may be parallel to each other.

[0068] The second area AR2 may extend from the first edge ED11 of the first area AR1. The third area AR3 may extend from the second edge ED12 of the first area AR1. The fourth area AR4 may extend from the third edge ED13 of the first area AR1. The fifth area AR5 may extend from the fourth edge ED14 of the first area AR1.

[0069] In a plan view, the first area AR1 may overlap the first transmission area TA1. The second area AR2 may overlap the second transmission area TA2. The third area AR3 may overlap the third transmission area TA3. The fourth area AR4 may overlap the fourth transmission area TA4. The fifth area AR5 may overlap the fifth transmission area TA5.

[0070] The first area AR1 may display an image IM through the first transmission area TA1 (refer to Figure 1 The second area AR2 may display an image IM through the second transmission area TA2 (refer to Figure 1The third area AR3 may display an image IM through the third transmission area TA3 (refer to Figure 1 The fourth area AR4 can display the image IM through the fourth transmission area TA4 (refer to Figure 1 The fifth area AR5 can display the image IM through the fifth transmission area TA5 (refer to Figure 1 ).

[0071] The second area AR2, the third area AR3, the fourth area AR4, and the fifth area AR5 may be bent with a given curvature so as to correspond to the second to third transmission areas TA2, TA3, fourth to fifth transmission areas TA4, and TA5, respectively.

[0072] In this specification, the first area AR1 may be referred to as a "first display area DA1 (refer to Figure 1 )". The second area AR2 may be referred to as a "second display area DA2 (refer to Figure 1 )". The third area AR3 may be referred to as a "third display area DA3 (refer to Figure 1 )". The fourth area AR4 may be referred to as a "fourth display area DA4 (refer to Figure 1 )”. The fifth area AR5 may be referred to as a “fifth display area DA5 (refer to Figure 1 )”.

[0073] The first corner region EG1 may be a region adjacent to the second region AR2 and the fifth region AR5. The first corner region EG1 may be located between the second region AR2 and the fifth region AR5. The edge of the first corner region EG1 may have a convex shape in a plan view. The second corner region EG2 may be a region adjacent to the second region AR2 and the third region AR3. The second corner region EG2 may be located between the second region AR2 and the third region AR3. The edge of the second corner region EG2 may have a convex shape in a plan view. The third corner region EG3 may be a region adjacent to the third region AR3 and the fourth region AR4. The third corner region EG3 may be located between the third region AR3 and the fourth region AR4. The edge of the third corner region EG3 may have a convex shape in a plan view. The fourth corner region EG4 may be a region adjacent to the fourth region AR4 and the fifth region AR5. The fourth corner region EG4 may be located between the fourth region AR4 and the fifth region AR5. The edge of the fourth corner region EG4 may have a convex shape in a plan view.

[0074] The sixth area AR6 may extend from the fourth area AR4 in the second direction DR2. The sixth area AR6 may include an upper area AR-H, a bending area BA, and a lower area AR-L.

[0075] The upper area AR-H may extend from the fourth area AR4, the bending area BA may extend from the upper area AR-H, and the lower area AR-L may extend from the bending area BA.

[0076] The pad PD may be located in the lower area AR-L, and the data driving circuit DIC may be mounted on the lower area AR-L. The pad PD may be electrically connected to the light emitting layer of the display panel DP. The data driving circuit DIC may provide a display area DA (reference Figure 1 ) provides a data signal. The display panel DP may be electrically connected to the printed circuit board PCB-M through the pad PD. The control circuit CIC may be mounted on the printed circuit board PCB-M. The control circuit CIC may control the data driving circuit DIC.

[0077] A display area TA and a frame area BZA may be defined in the display module DM. The display area TA may be a display area for displaying an image IM (refer to Figure 1 ) area. The user can visually perceive the image IM through the display area TA. According to some embodiments, the display area TA is shown in the shape of a quadrilateral with rounded vertices. However, this is shown as an example. The display area TA may have various shapes, not limited to, for example Figure 1 The display area TA may correspond to the display area DA of the display device DD (refer to Figure 1 ).

[0078] The border area BZA is adjacent to the display area TA. The border area BZA may have a given color. The border area BZA may surround the display area TA. Thus, the shape of the display area TA may be substantially defined by the border area BZA. However, this is shown as an example. The border area BZA may be positioned adjacent to only one side of the display area TA or may be omitted.

[0079] The display module DM may include a display panel DP and an input sensing layer ISL.

[0080] The display panel DP can display an image IM (refer to Figure 1 ). The display panel DP according to some embodiments of the present disclosure may be a light-emitting display panel, but the embodiments of the present disclosure are not limited thereto. For example, the display panel DP may be an organic light-emitting display panel, a quantum dot display panel, a micro-LED display panel, or a nano-LED display panel. The light-emitting layer of the organic light-emitting display panel may include an organic light-emitting material. The light-emitting layer of the quantum dot light-emitting display panel may include quantum dots, quantum rods, etc. The light-emitting layer of the micro-LED display panel may include micro-LEDs. The light-emitting layer of the nano-LED display panel may include nano-LEDs.

[0081] The display panel DP includes a base layer BL, a circuit layer DP_CL, an element layer DP_ED, and an encapsulation layer TFE. The display panel DP according to the present disclosure may be a flexible display panel. However, the embodiments of the present disclosure are not limited thereto. For example, the display panel DP may be a foldable display panel folded around a folding axis, or a rigid display panel.

[0082] The base layer BL may include a synthetic resin layer. The synthetic resin layer may be a polyimide-based resin layer, and its material is not particularly limited. In addition, the base layer BL may include a glass substrate, a metal substrate, an organic / inorganic composite material substrate, and the like.

[0083] The circuit layer DP_CL is located between the base layer BL and the element layer DP_ED. The circuit layer DP_CL includes at least one insulating layer and a circuit element. Hereinafter, the insulating layer included in the circuit layer DP_CL is referred to as an "intermediate insulating layer". The intermediate insulating layer includes at least one intermediate inorganic film and at least one intermediate organic film. The circuit element may include: a pixel driving circuit including a plurality of pixels PX (reference Figure 5 ) in each; and a sensor drive circuit (eg, Figure 7 O_SD), including multiple sensors FX for identifying external information (reference Figure 5 ) in each of the above. The external information may be biometric information. According to some embodiments of the present disclosure, the sensor FX may include a fingerprint recognition sensor, a proximity sensor, an iris recognition sensor, etc. In addition, the sensor may include an optical sensor that recognizes biometric information by using an optical method. This will be described in more detail later.

[0084] The circuit layer DP_CL may further include signal lines connected to the pixel driving circuit and / or the sensor driving circuit.

[0085] The element layer DP_ED may include a light emitting element included in each of the pixels PX and a light sensing element included in each of the sensors FX. According to some embodiments, the light sensing element may be a photodiode. The light sensing element may be a sensor that senses light reflected by a user's fingerprint or reacts to light.

[0086] The encapsulation layer TFE seals the element layer DP_ED. The encapsulation layer TFE may include at least one organic film and at least one inorganic film. The inorganic film may include an inorganic material and may protect the element layer DP_ED from moisture / oxygen. The inorganic film may include a silicon nitride layer, a silicon oxynitride layer, a silicon oxide layer, a titanium oxide layer, an aluminum oxide layer, etc., but is not particularly limited thereto. The organic film may include an organic material and may protect the element layer DP_ED from foreign matter such as dust particles.

[0087] The input sensing layer ISL may be formed on the display panel DP. The input sensing layer ISL may be directly located on the encapsulation layer TFE. According to some embodiments of the present disclosure, the input sensing layer ISL may be formed on the display panel DP by the same process as the display panel DP. That is, when the input sensing layer ISL is directly located on the display panel DP, an adhesive film is not positioned between the input sensing layer ISL and the encapsulation layer TFE. Alternatively, an adhesive film may be positioned between the input sensing layer ISL and the display panel DP. In this case, the input sensing layer ISL may not be manufactured by the same process as the display panel DP. That is, the input sensing layer ISL may be manufactured by a process independent of the process of the display panel DP, and may then be fixed on the upper surface of the display panel DP by an adhesive film.

[0088] The input sensing layer ISL may sense an external input (e.g., a user's touch), may change the sensed input into a given input signal, and may provide the input signal to the display panel DP. The input sensing layer ISL may include a plurality of sensing electrodes for sensing the external input. The sensing electrodes may sense the external input by using a capacitive method. The display panel DP may receive an input signal from the input sensing layer ISL, and may generate an image corresponding to the input signal.

[0089] The support member SPT may be located under the display panel DP. The support member SPT may support at least some of the components of the display panel DP.

[0090] The frame FRM may be located under the support member SPT. The frame FRM may accommodate at least some of the support member SPT, the display panel DP, and the window WM. According to some embodiments of the present disclosure, the frame FRM may be coupled to the window WM.

[0091] The display device DD according to some embodiments of the present disclosure may further include an adhesive layer AL. The window WM may be attached to the input sensing layer ISL through the adhesive layer AL. The adhesive layer AL may include an optically transparent adhesive, an optically transparent adhesive resin, or a pressure sensitive adhesive (PSA).

[0092] Figure 4 is a block diagram showing a display device according to some embodiments of the present disclosure. Figure 4 In the description of Figure 3 The described components are labeled with the same reference numerals / symbols, and thus, some additional descriptions may be omitted to avoid redundancy.

[0093] refer to Figure 4, the display device DD can sense external input applied from the outside. The external input may include various types of input provided from the outside of the display device DD. For example, in addition to contact with a part of the human body (such as the user's hand ET) or contact with a separate device (e.g., a touch pen or an active pen), the external input may also include an external input (e.g., hovering) applied when the user's hand ET is close to the display device DD or adjacent to the display device DD within a given distance. In addition, the external input may be provided in various types, such as a force type, a pressure type, a temperature type, and a light type.

[0094] The display device DD can sense the biometric information of the user applied from the outside. A biometric information sensing area capable of sensing the biometric information of the user can be provided in the display device DD. The biometric information sensing area can be set in the display area DA (refer to Figure 1 ) or may be arranged in the display area DA (reference Figure 1 As an example of the present disclosure, the entire display area DA may be used as a biometric information sensing area.

[0095] The display device DD may include a display module DM, a driving controller 100 , a sensor driving unit 200C, and a main driving unit 1000C.

[0096] The main driving unit 1000C may control the overall operation of the display device DD. For example, the main driving unit 1000C may control the operation of the driving controller 100 and the sensor driving unit 200C. The main driving unit 1000C may include at least one microprocessor, and the main driving unit 1000C may be referred to as a "host".

[0097] The driving controller 100 may control the display panel DP. The main driving unit 1000C may further include a graphics controller. The driving controller 100 may receive an image signal RGB and a control signal D-CS from the main driving unit 1000C. The control signal D-CS may include various signals. For example, the control signal D-CS may include an input vertical synchronization signal, an input horizontal synchronization signal, a main clock signal, a data enable signal, etc. The driving controller 100 may generate a vertical synchronization signal and a horizontal synchronization signal for controlling the timing of providing a signal to the display panel DP based on the control signal D-CS.

[0098] The sensor driving unit 200C may control the input sensing layer ISL. The sensor driving unit 200C may receive a control signal I-CS from the main driving unit 1000C.

[0099] The sensor driving unit 200C may calculate the coordinates of the first input or the second input based on the signal received from the input sensing layer ISL, and may provide a coordinate signal I-SS including information about the coordinates to the main driving unit 1000C. The main driving unit 1000C performs an operation corresponding to the user input based on the coordinate signal I-SS. For example, the main driving unit 1000C may control the driving controller 100 based on the coordinate signal I-SS so that a new application image may be displayed on the display panel DP.

[0100] Figure 5 is a block diagram partially illustrating a display device according to some embodiments of the present disclosure.

[0101] refer to Figure 5 , the display device DD includes a display panel DP, a panel driver, and a driving controller 100. According to some embodiments, the panel driver may include a data driver 200, a scan driver 300, an emission driver 350, a voltage generator 400, and a readout circuit 500.

[0102] The driving controller 100 may receive the image signal RGB and the external control signal CTRL. The external control signal CTRL may be a control signal D-CS (reference signal D-CS). Figure 4 ) are substantially the same signals. The driving controller 100 generates the image data signal DATA by converting the data format of the image signal RGB according to the specification of the interface with the data driver 200. The driving controller 100 can output the gate driving signal SCS, the source driving signal DCS, the emission control signal ECS, and the readout control signal RCS based on the external control signal CTRL.

[0103] The data driver 200 receives a source driving signal DCS and an image data signal DATA from the driving controller 100. The data driver 200 converts the image data signal DATA into a data signal and outputs the data signal to a plurality of data lines DL1 to DLm (wherein m is a natural number greater than 1) which will be described in more detail later. The data signal is an analog voltage corresponding to a grayscale value of the image data signal DATA.

[0104] The scan driver 300 receives a gate driving signal SCS from the driving controller 100. The scan driver 300 may output a scan signal to a plurality of scan lines to be described later in response to the gate driving signal SCS.

[0105] The voltage generator 400 generates voltages required for the operation of the display panel DP. According to some embodiments, the voltage generator 400 generates a first driving voltage ELVDD, a second driving voltage ELVSS, a first initialization voltage VINT1, and a second initialization voltage VINT2. According to some embodiments, the voltage generator 400 may operate under the control of the driving controller 100. According to some embodiments, the voltage level of the first driving voltage ELVDD is higher than the voltage level of the second driving voltage ELVSS. According to some embodiments, the voltage level of the first driving voltage ELVDD may be about 3V to 6V. The voltage level of the second driving voltage ELVSS may be about 0V to -3V. The voltage level of the first initialization voltage VINT1 and the second initialization voltage VINT2 is lower than the voltage level of the second driving voltage ELVSS. According to some embodiments, the voltage level of each of the first initialization voltage VINT1 and the second initialization voltage VINT2 may be about -3.5V to -6V. However, the present disclosure is not limited thereto. For example, voltage levels of the first driving voltage ELVDD, the second driving voltage ELVSS, and the first and second initialization voltages VINT1 and VINT2 generated by the voltage generator 400 may vary according to shapes of the display device DD and the display panel DP.

[0106] According to some embodiments, the voltage generator 400 may further generate a reset voltage VRST. According to some embodiments, a voltage level of the reset voltage VRST is lower than a voltage level of the second driving voltage ELVSS. According to some embodiments, the voltage generator 400 may generate the reset voltage VRST as the same voltage as one of the first initialization voltage VINT1 and the second initialization voltage VINT2.

[0107] The display panel DP may include a display area TA (refer to Figure 3 ) of the display area AA and corresponding to the frame area BZA (reference Figure 3 )'s non-display area (or peripheral area) NDA.

[0108] The display panel DP may include a plurality of pixels PX located in the display area AA and a plurality of sensors FX located in the display area AA. According to some embodiments, each of the plurality of sensors FX may be located between two adjacent pixels PX. The plurality of pixels PX and the plurality of sensors FX may be alternately arranged in the first direction DR1 and the second direction DR2. However, the present disclosure is not limited thereto. That is, two or more pixels PX may be located between two sensors FX adjacent to each other in the second direction DR2 among the plurality of sensors FX, or two or more pixels PX may be located between two sensors FX adjacent to each other in the first direction DR1 among the plurality of sensors FX.

[0109] The display panel DP further includes a plurality of initialization scan lines SIL1 to SILn, a plurality of compensation scan lines SCL1 to SCLn, a plurality of write scan lines SWL1 to SWLn, a plurality of black scan lines SBL1 to SBLn, a plurality of emission control lines EML1 to EMLn, a plurality of data lines DL1 to DLm, a plurality of sensing lines RL1 to RLh, and a plurality of sensing control lines CL1 to CLn, wherein n and h are respectively natural numbers greater than 1. The initialization scan lines SIL1 to SILn, the compensation scan lines SCL1 to SCLn, the write scan lines SWL1 to SWLn, the black scan lines SBL1 to SBLn, the emission control lines EML1 to EMLn, and the sensing control lines CL1 to CLn extend in the first direction DR1. Initialization scan lines SIL1 to SILn, compensation scan lines SCL1 to SCLn, write scan lines SWL1 to SWLn, black scan lines SBL1 to SBLn, emission control lines EML1 to EMLn, and sensing control lines CL1 to CLn are arranged to be spaced apart from each other in the second direction DR2. Sensing lines RL1 to RLh and data lines DL1 to DLm extend in the second direction DR2 and are arranged to be spaced apart from each other in the first direction DR1.

[0110] The plurality of pixels PX are electrically connected to initialization scan lines SIL1 to SILn, compensation scan lines SCL1 to SCLn, write scan lines SWL1 to SWLn, black scan lines SBL1 to SBLn, emission control lines EML1 to EMLn, and data lines DL1 to DLm. For example, each of the plurality of pixels PX may be electrically connected to four scan lines. However, the number of scan lines connected to each pixel PX is not limited thereto and may be changed.

[0111] A plurality of sensors FX are electrically connected to the sensing control lines CL1 to CLn, the write scan lines SWL1 to SWLn, and the sensing lines RL1 to RLh. However, the embodiments according to the present disclosure are not limited thereto. The number of lines connected to each sensor FX may be variable. According to some embodiments, the number of sensing lines RL1 to RLh may correspond to 1 / 2 of the number of data lines DL1 to DLm. However, the embodiments according to the present disclosure are not limited thereto. Alternatively, the number of sensing lines RL1 to RLh may correspond to 1 / 4 or 1 / 8 of the number of data lines DL1 to DLm. The number of sensing control lines CL1 to CLn may correspond to the number of write scan lines SWL1 to SWLn. However, the embodiments according to the present disclosure are not limited thereto. Alternatively, the number of sensing control lines CL1 to CLn may correspond to 1 / 2, 1 / 4, or 1 / 8 of the number of write scan lines SWL1 to SWLn.

[0112] The scan driver 300 may be located in the non-display area NDA of the display panel DP. The scan driver 300 receives a gate drive signal SCS from the drive controller 100. In response to the gate drive signal SCS, the scan driver 300 outputs an initialization scan signal to the initialization scan lines SIL1 to SILn, and outputs a compensation scan signal to the compensation scan lines SCL1 to SCLn. According to some embodiments, the scan driver 300 may sequentially provide the initialization scan signal to the initialization scan lines SIL1 to SILn, and may sequentially provide the compensation scan signal to the compensation scan lines SCL1 to SCLn. In addition, in response to the gate drive signal SCS, the scan driver 300 may output a write scan signal to the write scan lines SWL1 to SWLn, and may output a black scan signal to the black scan lines SBL1 to SBLn. According to some embodiments, the scan driver 300 may sequentially provide a write scan signal to the write scan lines SWL1 to SWLn, and may sequentially provide a black scan signal to the black scan lines SBL1 to SBLn.

[0113] Alternatively, the scan driver 300 may include a first scan driver and a second scan driver. The first scan driver may output an initialization scan signal and a compensation scan signal, and the second scan driver may output a write scan signal and a black scan signal.

[0114] According to some embodiments, the sensing control signal CS may be provided to the sensing control lines CL1 to CLn at the same time. According to some embodiments, the display device DD may further include a sensing control unit that generates the sensing control signal CS. In addition, alternatively, the scan driver 300 may provide the sensing control signal CS to the sensing control lines CL1 to CLn. In this case, the sensing control unit may be included in the scan driver 300.

[0115] The emission driver 350 may be located in the non-display area NDA of the display panel DP. The emission driver 350 receives the emission control signal ECS from the drive controller 100. The emission driver 350 may output emission signals to the emission control lines EML1 to EMLn in response to the emission control signal ECS. Alternatively, the scan driver 300 may be connected to the emission control lines EML1 to EMLn. In this case, the emission driver 350 may be omitted, and the scan driver 300 may output emission signals to the emission control lines EML1 to EMLn.

[0116] The readout circuit 500 receives a readout control signal RCS from the driving controller 100. The readout circuit 500 may receive a sensing signal from the sensing lines RL1 to RLh in response to the readout control signal RCS. The readout circuit 500 may process the sensing signals received from the sensing lines RL1 to RLh, and may provide the processed sensing signals S_FS to the driving controller 100. The driving controller 100 may recognize biometric information based on the processed sensing signals S_FS.

[0117] Figure 6 is an enlarged plan view showing a partial area of ​​a display area according to some embodiments of the present disclosure.

[0118] refer to Figure 5 and Figure 6 , the display panel DP includes a plurality of pixels PX and a plurality of sensors FX.

[0119] A plurality of pixels PX may be grouped into a plurality of reference pixel units RPU. According to some embodiments, each reference pixel unit RPU may include four pixels, namely, a first pixel PXR (hereinafter referred to as a “red pixel”), two second pixels PXG1 and PXG2 (hereinafter referred to as “a first green pixel and a second green pixel”), and a third pixel PXB (hereinafter referred to as a “blue pixel”). However, the number of pixels included in each reference pixel unit RPU is not limited thereto. Alternatively, each reference pixel unit RPU may include three pixels, namely, a red pixel PXR, a first green pixel PXG1 (or a second green pixel PXG2), and a blue pixel PXB.

[0120] The red pixel PXR includes a first light-emitting element ED_R (hereinafter referred to as "red light-emitting element"), the first green pixel PXG1 includes a second light-emitting element ED_G1 (hereinafter referred to as "first green light-emitting element"), the second green pixel PXG2 includes a second light-emitting element ED_G2 (hereinafter referred to as "second green light-emitting element"), and the blue pixel PXB includes a third light-emitting element ED_B (hereinafter referred to as "blue light-emitting element"). According to some embodiments, the red light-emitting element ED_R outputs a first color light (e.g., red light), each of the first green light-emitting element ED_G1 and the second green light-emitting element ED_G2 outputs a second color light (e.g., green light), and the blue light-emitting element ED_B outputs a third color light (e.g., blue light).

[0121] The red light emitting element ED_R and the blue light emitting element ED_B may be repeatedly and alternately arranged in the first direction DR1 and the second direction DR2. The first green light emitting element ED_G1 may be arranged along the second direction DR2, and the second green light emitting element ED_G2 may be arranged along the second direction DR2. The first green light emitting element ED_G1 and the second green light emitting element ED_G2 may be arranged in different columns. The first green light emitting element ED_G1 and the second green light emitting element ED_G2 may be alternately arranged along the first direction DR1. In the first direction DR1 and the second direction DR2, the first green light emitting element ED_G1 and the second green light emitting element ED_G2 may be arranged at rows and columns different from the rows and columns where the red light emitting element ED_R and the blue light emitting element ED_B are located.

[0122] According to some embodiments, the size of the red light emitting element ED_R may be larger than the size of the first green light emitting element ED_G1 and the second green light emitting element ED_G2. In addition, the size of the blue light emitting element ED_B may be larger than the size of the red light emitting element ED_R, or may be the same as the size of the red light emitting element ED_R. The size of each of the light emitting elements ED_R, ED_G1, ED_G2, and ED_B is not limited thereto, and various modifications may be made. For example, according to some embodiments of the present disclosure, the light emitting elements ED_R, ED_G1, ED_G2, and ED_B may have the same size.

[0123] The first green light emitting element ED_G1 and the second green light emitting element ED_G2 may have the same shape as the red light emitting element ED_R and the blue light emitting element ED_B. According to some embodiments, each of the red light emitting element ED_R and the blue light emitting element ED_B may be in the shape of an octagon in which the length in the first direction DR1 and the length in the second direction DR2 are the same as each other. That is, the red light emitting element ED_R and the blue light emitting element ED_B may have the same size or different sizes, but may have the same shape.

[0124] Each of the first green light emitting element ED_G1 and the second green light emitting element ED_G2 may be in the shape of an octagon in which the length in the first direction DR1 and the length in the second direction DR2 are the same as each other. According to some embodiments, the first green light emitting element ED_G1 and the second green light emitting element ED_G2 have the same size and the same shape. However, the shapes of the light emitting elements ED_R, ED_G1, ED_G2, and ED_B are not limited thereto. The shape of each of the light emitting elements ED_R, ED_G1, ED_G2, and ED_B may be variously changed and modified. According to some embodiments, each of the light emitting elements ED_R, ED_G1, ED_G2, and ED_B may be in the shape of a circle, a rectangle, or a rhombus.

[0125] Each of the plurality of sensors FX includes a light sensing unit LSU. The light sensing unit LSU includes "k" light sensing elements. In this case, "k" is a natural number of 1 or greater. According to some embodiments, the light sensing unit LSU includes a plurality of light sensing elements. Figure 6 The light sensing unit LSU is shown as including two light sensing elements (hereinafter referred to as “first light sensing element OPD1 and second light sensing element OPD2”), but the present disclosure is not limited thereto. For example, the light sensing unit LSU may include one light sensing element or three or more light sensing elements.

[0126] According to some embodiments, each reference pixel unit RPU includes a first light sensing element OPD1 and a second light sensing element OPD2. However, the number of light sensing elements included in each reference pixel unit RPU is not limited thereto. For example, each reference pixel unit RPU may include one light sensing element or three or more light sensing elements.

[0127] Each of the first light sensing element OPD1 and the second light sensing element OPD2 may be located between the red light emitting element ED_R and the blue light emitting element ED_B in the first direction DR1. Each of the first light sensing element OPD1 and the second light sensing element OPD2 may be located adjacent to the first green light emitting element ED_G1 or the second green light emitting element ED_G2 in the second direction DR2. According to some embodiments, the first light sensing element OPD1 is located between two first green light emitting elements ED_G1 adjacent to each other in the second direction DR2. The second light sensing element OPD2 is located between two second green light emitting elements ED_G2 adjacent to each other in the second direction DR2.

[0128] The first light sensing element OPD1 and the second light sensing element OPD2 may have the same size and the same shape. The size of each of the first light sensing element OPD1 and the second light sensing element OPD2 may be smaller than the size of the red light emitting element ED_R and the blue light emitting element ED_B. According to some embodiments, the size of each of the first light sensing element OPD1 and the second light sensing element OPD2 may be the same or similar to the size of the first green light emitting element ED_G1 and the second green light emitting element ED_G2. However, the size of each of the first light sensing element OPD1 and the second light sensing element OPD2 is not limited thereto, and various modifications and applications may be made. The shape of each of the first light sensing element OPD1 and the second light sensing element OPD2 may be different from the shape of the red light emitting element ED_R and the blue light emitting element ED_B. According to some embodiments, each of the first light sensing element OPD1 and the second light sensing element OPD2 may be in the shape of a rectangle. Each of the first light sensing element OPD1 and the second light sensing element OPD2 may be in the shape of a rectangle in which the length in the second direction DR2 is longer than the length in the first direction DR1. Alternatively, each of the first light sensing element OPD1 and the second light sensing element OPD2 may be in the shape of a square in which the length in the first direction DR1 is the same as the length in the second direction DR2 .

[0129] Figure 7 is a circuit diagram showing pixels and sensors according to some embodiments of the present disclosure. Figure 7 Various components are shown in the figure, but the embodiments according to the present disclosure are not limited thereto. For example, various embodiments may include additional components or fewer components without departing from the spirit and scope of the embodiments according to the present disclosure.

[0130] exist Figure 7 It is shown in Figure 5 The plurality of pixels PX shown in FIG. Figure 5 ) is taken as an example. Next, the circuit structure of the red pixel PXR will be described. Figure 5 ) have the same circuit structure, so additional descriptions associated with the remaining pixels will be omitted to avoid redundancy. Figure 7 It is shown in Figure 5 The multiple sensors shown in FX (reference Figure 5 ) of a sensor FX (reference Figure 5 ) is used as an example. Next, the sensor FX (reference Figure 5 ) circuit structure. Because the plurality of sensors FX have the same structure, additional descriptions associated with the remaining sensors will be omitted to avoid redundancy.

[0131] refer to Figure 5 and Figure 7 , the red pixel PXR is connected to the i-th data line DLi among the data lines DL1 to DLm, the j-th initialization scan line SILj among the initialization scan lines SIL1 to SILn, the j-th compensation scan line SCLj among the compensation scan lines SCL1 to SCLn, the j-th write scan line SWLj among the write scan lines SWL1 to SWLn, the j-th black scan line SBLj among the black scan lines SBL1 to SBLn, and the j-th emission control line EMLj among the emission control lines EML1 to EMLn.

[0132] The red pixel PXR includes a red light emitting element ED_R and a red pixel driving circuit R_PD. The red light emitting element ED_R may be a light emitting diode. According to some embodiments, the red light emitting element ED_R may include an organic light emitting diode including an organic light emitting layer.

[0133] The red pixel driving circuit R_PD includes a first transistor T1, a second transistor T2, a third transistor T3, a fourth transistor T4, a fifth transistor T5, a sixth transistor T6, and a seventh transistor T7 and a capacitor Cst. At least one of the first transistor T1, the second transistor T2, the third transistor T3, the fourth transistor T4, the fifth transistor T5, the sixth transistor T6, and the seventh transistor T7 may be a transistor having a low temperature polycrystalline silicon (LTPS) semiconductor layer. At least one of the first transistor T1, the second transistor T2, the third transistor T3, the fourth transistor T4, the fifth transistor T5, the sixth transistor T6, and the seventh transistor T7 may be a transistor having an oxide semiconductor layer. Some of the first transistor T1 to the seventh transistor T7 may be P-type transistors, and the remaining transistors may be N-type transistors. For example, the first transistor T1, the second transistor T2, the fifth transistor T5, the sixth transistor T6, and the seventh transistor T7 are PMOS transistors, and the third transistor T3 and the fourth transistor T4 may be NMOS transistors. For example, the third transistor T3 and the fourth transistor T4 may be oxide semiconductor transistors, and the first transistor T1 , the second transistor T2 , the fifth transistor T5 , the sixth transistor T6 , and the seventh transistor T7 may be LTPS transistors.

[0134] The configuration of the red pixel driving circuit R_PD according to the present disclosure is not limited to Figure 7 The embodiments shown and described in . Figure 7 The red pixel driving circuit R_PD shown in FIG. 1 is only an example, and the configuration of the red pixel driving circuit R_PD may be modified and implemented. For example, all of the first transistor T1 to the seventh transistor T7 may be P-type transistors or N-type transistors.

[0135] The jth initialization scan line SILj, the jth compensation scan line SCLj, the jth write scan line SWLj, the jth black scan line SBLj, and the jth emission control line EMLj can transmit the jth initialization scan signal SIj, the jth compensation scan signal SCj, the jth write scan signal SWj, the jth black scan signal SBj, and the jth emission signal EMj to the red pixel PXR, respectively. The i-th data line DLi transmits the i-th data signal Di to the red pixel PXR. The i-th data signal Di may have a signal similar to that input to the display device DD (reference signal Figure 4 ) of the image signal RGB (reference Figure 4 ) corresponds to the voltage level.

[0136] The first and second driving voltage lines VL1 and VL2 may transmit the first and second driving voltages ELVDD and ELVSS to the red pixels PXR, respectively. In addition, the first and second initialization voltage lines VL3 and VL4 may transmit the first and second initialization voltages VINT1 and VINT2 to the red pixels PXR, respectively.

[0137] The first transistor T1 is connected between the red light emitting element ED_R and the first driving voltage line VL1 receiving the first driving voltage ELVDD. The first transistor T1 includes a first electrode connected to the first driving voltage line VL1 through a sixth transistor T6, a second electrode connected to the red anode electrode R_AE of the red light emitting element ED_R through a seventh transistor T7, and a third electrode connected to a first end of the capacitor Cst (e.g., connected to the first node ND1). According to the switching operation of the second transistor T2, the first transistor T1 can receive the i-th data signal Di transmitted through the i-th data line DLi, and then can provide a driving current Id to the red light emitting element ED_R. According to some embodiments, the first transistor T1 can be referred to as a "driving transistor".

[0138] The second transistor T2 is connected between the i-th data line DLi and the first electrode of the first transistor T1. The second transistor T2 includes a first electrode connected to the i-th data line DLi, a second electrode connected to the first electrode of the first transistor T1, and a third electrode connected to the j-th write scan line SWLj. According to the j-th write scan signal SWj transmitted through the j-th write scan line SWLj, the second transistor T2 can be turned on and can transmit the i-th data signal Di transmitted from the i-th data line DLi to the first electrode of the first transistor T1. According to some embodiments, the second transistor T2 can be referred to as a "switching transistor".

[0139] The third transistor T3 is connected between the second electrode (or second node ND2) of the first transistor T1 and the first node ND1. The third transistor T3 includes a first electrode connected to the third electrode of the first transistor T1, a second electrode connected to the second electrode of the first transistor T1, and a third electrode connected to the j-th compensation scan line SCLj. According to the j-th compensation scan signal SCj transmitted through the j-th compensation scan line SCLj, the third transistor T3 can be turned on and the third electrode and the second electrode of the first transistor T1 can be connected. In this case, the first transistor T1 can be diode-connected. According to some embodiments, the third transistor T3 can be referred to as a "compensation transistor".

[0140] The fourth transistor T4 is connected between the first node ND1 and the first initialization voltage line VL3 to which the first initialization voltage VINT1 is applied. The fourth transistor T4 includes a first electrode connected to the first initialization voltage line VL3, a second electrode connected to the first node ND1, and a third electrode connected to the j-th initialization scan line SILj. According to the j-th initialization scan signal SIj transmitted through the j-th initialization scan line SILj, the fourth transistor T4 is turned on. Therefore, the turned-on fourth transistor T4 transmits the first initialization voltage VINT1 to the first node ND1, so that the potential of the third electrode of the first transistor T1 (that is, the potential of the first node ND1) is initialized. According to some embodiments, the fourth transistor T4 can be referred to as an "initialization transistor".

[0141] The sixth transistor T6 includes a first electrode connected to the first driving voltage line VL1, a second electrode connected to the first electrode of the first transistor T1, and a third electrode connected to the j-th emission control line EMLj.

[0142] The seventh transistor T7 includes a first electrode connected to the second electrode of the first transistor T1, a second electrode connected to the red anode electrode R_AE of the red light emitting element ED_R, and a third electrode connected to the j-th emission control line EMLj.

[0143] According to the jth emission signal EMj transmitted through the jth emission control line EMLj, the sixth transistor T6 and the seventh transistor T7 are turned on at the same time. The first transistor T1 connected by the diode can compensate for the first driving voltage ELVDD applied by the turned-on sixth transistor T6, and then the first driving voltage ELVDD can be transmitted to the red light emitting element ED_R. According to some embodiments, the sixth transistor T6 and the seventh transistor T7 can be referred to as "emission transistors".

[0144] The fifth transistor T5 includes a first electrode connected to a second initialization voltage line VL4 to which a second initialization voltage VINT2 is transmitted, a second electrode connected to a second electrode of the seventh transistor T7, and a third electrode connected to a j-th black scan line SBLj. The voltage level of the second initialization voltage VINT2 may be lower than or equal to the voltage level of the first initialization voltage VINT1. As an example of the present disclosure, the fifth transistor T5 may be referred to as a "black scan transistor".

[0145] As described above, the first end of the capacitor Cst is connected to the third electrode of the first transistor T1 , and the second end of the capacitor Cst is connected to the first driving voltage line VL1 .

[0146] The red cathode electrode R_CA of the red light emitting element ED_R may be connected to a second driving voltage line VL2 transmitting a second driving voltage ELVSS. The voltage level of the second driving voltage ELVSS may be lower than the voltage level of the first driving voltage ELVDD. According to some embodiments, the voltage level of the second driving voltage ELVSS may be lower than the voltage levels of the first initialization voltage VINT1 and the second initialization voltage VINT2.

[0147] The sensor FX is connected to the j-th write scan line SWLj, the j-th sensing control line CLj, and the d-th sensing line RLd among the sensing lines RL1 to RLh.

[0148] The sensor FX includes a light sensing unit LSU and a sensor driving circuit O_SD. The light sensing unit LSU may include "k" light sensing elements connected in parallel. When "k" is 2, two light sensing elements (i.e., a first light sensing element OPD1 and a second light sensing element OPD2) may be connected in parallel in the sensor driving circuit O_SD. Each of the first light sensing element OPD1 and the second light sensing element OPD2 may be a photodiode. According to some embodiments, each of the first light sensing element OPD1 and the second light sensing element OPD2 may be an organic photodiode including an organic material as a photoelectric conversion layer. The first sub-anode electrode O_AE1 and the second sub-anode electrode O_AE2 of the first light sensing element OPD1 and the second light sensing element OPD2 may be connected to the first sensing node SN1, and the first sub-cathode electrode O_CA1 and the second sub-cathode electrode O_CA2 of the first light sensing element OPD1 and the second light sensing element OPD2 may be connected to the second driving voltage line VL2 that transmits the second driving voltage ELVSS.

[0149] The sensor driving circuit O_SD includes three transistors ST1 to ST3. The three transistors ST1 to ST3 may be a reset transistor ST1, an amplifying transistor ST2, and an output transistor ST3, respectively. At least one of the reset transistor ST1, the amplifying transistor ST2, and the output transistor ST3 may be an oxide semiconductor transistor. According to some embodiments, the reset transistor ST1 may be an oxide semiconductor transistor, and the amplifying transistor ST2 and the output transistor ST3 may be LTPS transistors. However, the present disclosure is not limited thereto. For example, at least the reset transistor ST1 and the output transistor ST3 may be oxide semiconductor transistors, and the amplifying transistor ST2 may be an LTPS transistor.

[0150] In addition, some of the reset transistor ST1, the amplifying transistor ST2, and the output transistor ST3 may be P-type transistors, while the others may be N-type transistors. According to some embodiments, the amplifying transistor ST2 and the output transistor ST3 may be PMOS transistors, while the reset transistor ST1 may be an NMOS transistor. However, embodiments according to the present disclosure are not limited thereto. For example, all of the transistors ST1, ST2, and ST3 may be N-type transistors or P-type transistors.

[0151] Some of the reset transistor ST1, the amplifying transistor ST2, and the output transistor ST3 (for example, the reset transistor ST1) may be implemented with transistors of the same type as the third transistor T3 and the fourth transistor T4 of the red pixel PXR. The amplifying transistor ST2 and the output transistor ST3 may be implemented with transistors of the same type as the first transistor T1, the second transistor T2, the fifth transistor T5, the sixth transistor T6, and the seventh transistor T7 of the red pixel PXR.

[0152] The circuit configuration of the sensor driving circuit O_SD according to the present disclosure is not limited to Figure 7 . Figure 7 The sensor driving circuit O_SD shown in is provided only as an example, and the configuration of the sensor driving circuit O_SD may be modified and implemented.

[0153] The reset transistor ST1 includes a first electrode connected to a reset receiving line VL5 receiving a reset voltage VRST, a second electrode connected to a first sensing node SN1, and a third electrode connected to a j-th sensing control line CLj receiving a sensing control signal CS. The reset transistor ST1 can reset the potential of the first sensing node SN1 to the reset voltage VRST in response to the sensing control signal CS.

[0154] According to some embodiments, the reset voltage VRST may be a DC voltage maintained at a voltage level lower than the voltage level of the second driving voltage ELVSS. However, the present disclosure is not limited thereto. During at least one effective period of the sensing control signal CS, the reset voltage VRST may have a voltage level lower than the voltage level of the second driving voltage ELVSS.

[0155] The reset transistor ST1 may include a plurality of sub-reset transistors connected in series. For example, the reset transistor ST1 may include two sub-reset transistors (hereinafter referred to as "first sub-reset transistor and second sub-reset transistor"). In this case, the third electrode of the first sub-reset transistor and the third electrode of the second sub-reset transistor are connected to the j-th sensing control line CLj. In addition, the second electrode of the first sub-reset transistor and the first electrode of the second sub-reset transistor may be electrically connected to each other. In addition, the reset voltage VRST may be applied to the first electrode of the first sub-reset transistor, and the second electrode of the second sub-reset transistor may be electrically connected to the first sensing node SN1. However, the number of sub-reset transistors is not limited thereto, and various changes or modifications may be made.

[0156] The amplifying transistor ST2 includes a first electrode connected to a sensing drive line SVL receiving a sensing drive voltage SVD, a second electrode connected to a second sensing node SN2, and a third electrode connected to a first sensing node SN1. The amplifying transistor ST2 can be turned on according to the potential of the first sensing node SN1, and the sensing drive voltage SVD can be applied to the second sensing node SN2. According to some embodiments, the sensing drive voltage SVD can correspond to the first driving voltage ELVDD and one of the first initialization voltage VINT1 and the second initialization voltage VINT2. When the sensing drive voltage SVD corresponds to the first driving voltage ELVDD, the sensing drive line SVL can be electrically connected to the first driving voltage line VL1. When the sensing drive voltage SVD corresponds to the first initialization voltage VINT1, the sensing drive line SVL can be electrically connected to the first initialization voltage line VL3; when the sensing drive voltage SVD corresponds to the second initialization voltage VINT2, the sensing drive line SVL can be electrically connected to the second initialization voltage line VL4.

[0157] The output transistor ST3 includes a first electrode connected to the second sensing node SN2, a second electrode connected to the dth sensing line RLd, and a third electrode connected to the output control line receiving the output control signal. The output transistor ST3 can transmit the dth sensing signal FSd to the dth sensing line RLd in response to the output control signal. The output control signal can be the jth write scan signal SWj provided through the jth write scan line SWLj. That is, the output transistor ST3 can receive the jth write scan signal SWj provided from the jth write scan line SWLj as the output control signal.

[0158] The light sensing unit LSU of the sensor FX can be configured to be a light emitting element of ED_R, ED_G1, ED_G2 and ED_B (reference Figure 6 ) is exposed to light during the light-emitting period. The light can be from the light-emitting elements ED_R, ED_G1, ED_G2 and ED_B (reference Figure 6 ) is an output signal.

[0159] When the user's hand ET (ref. Figure 4 ) Touch display device DD (reference Figure 1 ), the first light sensing element OPD1 and the second light sensing element OPD2 may generate photoelectrons, the amount of which corresponds to the amount of light emitted by the user's hand ET (reference Figure 4 ) by the ridges of the fingerprint or the valleys between the ridges thereof, and the generated photoelectrons may be accumulated at the first sensing node SN1.

[0160] When the output transistor ST3 is turned on, the dth sensing signal FSd transmitted from the sensing driving line SVL through the amplifying transistor ST2 and the output transistor ST3 to the dth sensing line RLd is determined by the amount of charge of the first sensing node SN1. According to some embodiments, assuming that the output transistor ST3 is a P-type transistor, as the amount of photoelectrons generated by the first light sensing element OPD1 and the second light sensing element OPD2 and then accumulated at the first sensing node SN1 increases, the amplitude of the dth sensing signal FSd can decrease.

[0161] Figure 8 According to some embodiments of the present disclosure, Figure 6 A cross-sectional view of a pixel and a sensor of a display panel taken along line II'. Figure 8 In the description of Figure 3 The components described are labeled with the same reference numerals / symbols, and thus, some additional descriptions may be omitted to avoid redundancy. Figure 8Various operations are shown in the figure, but the embodiments according to the present disclosure are not limited thereto. For example, various embodiments may include additional operations or fewer operations, or the order of operations may be changed, unless otherwise explicitly stated or implied, without departing from the spirit and scope of the embodiments according to the present disclosure.

[0162] refer to Figure 8 , the display panel DP may include a base layer BL, a circuit layer DP_CL located on the base layer BL, a device layer DP_ED, and an encapsulation layer TFE.

[0163] The base layer BL may include a synthetic resin layer. The synthetic resin layer may include a thermosetting resin. In particular, the synthetic resin layer may be a polyimide-based resin layer, and its material is not particularly limited. The synthetic resin layer may include at least one of acrylic resin, methacrylic resin, polyisoprene, vinyl resin, epoxy resin, polyurethane resin, cellulose resin, siloxane resin, polyamide resin, and perylene resin. In addition, the base layer BL may include a glass substrate, a metal substrate, an organic / inorganic composite substrate, etc.

[0164] At least one inorganic layer is formed on the upper surface of the base layer BL. The inorganic layer may include at least one of aluminum oxide, titanium oxide, silicon oxide, silicon oxynitride, zirconium oxide, and hafnium oxide. The inorganic layer may be formed of a plurality of layers. The plurality of inorganic layers may constitute a barrier layer BRL and / or a buffer layer BFL, which will be described in more detail later. The barrier layer BRL and the buffer layer BFL may be selectively arranged.

[0165] The barrier layer BRL prevents foreign matter from being introduced from the outside. The barrier layer BRL may include a silicon oxide layer and a silicon nitride layer. Each of the silicon oxide layer and the silicon nitride layer may be provided in plurality, and the plurality of silicon oxide layers and the plurality of silicon nitride layers may be alternately stacked.

[0166] The buffer layer BFL may be located on the barrier layer BRL. The buffer layer BFL relatively improves the bonding force between the base layer BL and the semiconductor pattern and / or the conductive pattern. The buffer layer BFL may include a silicon oxide layer and a silicon nitride layer. The silicon oxide layer and the silicon nitride layer may be alternately stacked.

[0167] The semiconductor pattern of the red pixel PXR may be located on the buffer layer BFL. The semiconductor pattern may include a silicon semiconductor. The semiconductor pattern may include polycrystalline silicon. However, the present disclosure is not limited thereto. For example, the semiconductor pattern may include amorphous silicon.

[0168] The electrical characteristics of the semiconductor pattern vary depending on whether it is doped. The semiconductor pattern may include a doped region and an undoped region. The doped region may be doped with an N-type dopant or a P-type dopant. A P-type transistor includes a doped region doped with a P-type dopant, and an N-type transistor includes a doped region doped with an N-type dopant.

[0169] The doped region has higher conductivity than the undoped region and substantially operates as an electrode or a signal line. The undoped region substantially corresponds to an active portion (or channel) of the transistor.

[0170] A first electrode S1, a channel portion A1, and a second electrode D1 of the first transistor T1 are formed from a semiconductor pattern. The first electrode S1 and the second electrode D1 of the first transistor T1 extend in opposite directions from the channel portion A1.

[0171] exist Figure 8 FIG. 4 shows a portion of a connection signal line CSL formed from a semiconductor pattern. According to some embodiments, on a plane, the connection signal line CSL may be electrically connected to the seventh transistor T7 (reference Figure 7 )'s second electrode.

[0172] The first insulating layer 10 is located on the buffer layer BFL. Figure 5 ) commonly overlap and cover the semiconductor pattern. The first insulating layer 10 may be an inorganic layer and / or an organic layer, and may have a single-layer structure or a multi-layer structure. The first insulating layer 10 may include at least one of aluminum oxide, titanium oxide, silicon oxide, silicon oxynitride, zirconium oxide, and hafnium oxide. According to some embodiments, the first insulating layer 10 may be a single silicon oxide layer. The insulating layer other than the first insulating layer 10 of the circuit layer DP_CL to be described later may also be an inorganic layer and / or an organic layer, and may have a single-layer structure or a multi-layer structure. The inorganic layer may include at least one of the above materials.

[0173] The third electrode G1 of the first transistor T1 is located on the first insulating layer 10. The third electrode G1 may be a part of the metal pattern. The third electrode G1 of the first transistor T1 overlaps the channel portion A1 of the first transistor T1. The third electrode G1 of the first transistor T1 may be used as a mask in a process of doping the semiconductor pattern.

[0174] The second insulating layer 20 covering the third electrode G1 is located on the first insulating layer 10. The second insulating layer 20 overlaps the plurality of pixels PX in common. The second insulating layer 20 may be an inorganic layer and / or an organic layer and may have a single layer structure or a multilayer structure. According to some embodiments, the second insulating layer 20 may be a single silicon oxide layer.

[0175] The upper electrode UE may be located on the second insulating layer 20. The upper electrode UE may overlap the third electrode G1. The upper electrode UE may be a portion of a metal pattern or a portion of a doped semiconductor pattern. A portion of the third electrode G1 and the upper electrode UE overlapping the portion of the third electrode G1 may define a capacitor Cst (reference Figure 7 ). According to some embodiments of the present disclosure, the upper electrode UE may be omitted.

[0176] According to some embodiments of the present disclosure, the second insulating layer 20 may be replaced by an insulating pattern. The upper electrode UE is located on the insulating pattern. The upper electrode UE may be used as a mask for forming the insulating pattern from the second insulating layer 20.

[0177] The third insulating layer 30 covering the upper electrode UE is located on the second insulating layer 20. According to some embodiments, the third insulating layer 30 may be a single silicon oxide layer. The semiconductor pattern of the third transistor T3 is located on the third insulating layer 30. The semiconductor pattern may include a metal oxide. The oxide semiconductor may include a crystalline or amorphous oxide semiconductor. For example, the oxide semiconductor may include a metal oxide of zinc (Zn), indium (In), gallium (Ga), tin (Sn) or titanium (Ti), or a mixture of metals such as zinc (Zn), indium (In), gallium (Ga), tin (Sn) or titanium (Ti), and oxides thereof. The oxide semiconductor may include indium tin oxide (ITO), indium gallium zinc oxide (IGZO), zinc oxide (ZnO), indium zinc oxide (IZO), zinc indium oxide (ZIO), indium oxide (InO), titanium oxide (TiO), indium zinc tin oxide (IZTO), zinc tin oxide (ZTO), etc.

[0178] The semiconductor pattern may include a plurality of regions distinguished according to whether the metal oxide is reduced or not. The region in which the metal oxide is reduced (hereinafter referred to as the "reduction region") has a higher conductivity than the region in which the metal oxide is not reduced (hereinafter referred to as the "non-reduction region"). The reduction region basically has the function of an electrode or a signal line. The non-reduction region basically corresponds to the channel portion of the transistor. In other words, a portion of the semiconductor pattern may be the channel portion of the transistor, and another portion thereof may be the first electrode or the second electrode of the transistor.

[0179] The first electrode S3, the channel portion A3 and the second electrode D3 of the third transistor T3 are formed from the semiconductor pattern. The first electrode S3 and the second electrode D3 include metal reduced from the metal oxide semiconductor. The first electrode S3 and the second electrode D3 may include a metal layer having a given thickness from the upper surface of the semiconductor pattern and including the reduced metal.

[0180] A fourth insulating layer 40 covering the semiconductor pattern is located on the third insulating layer 30. According to some embodiments, the fourth insulating layer 40 may be a single silicon oxide layer. A third electrode G3 of the third transistor T3 is located on the fourth insulating layer 40. The third electrode G3 may be a part of the metal pattern. The third electrode G3 of the third transistor T3 overlaps with a channel portion A3 of the third transistor T3.

[0181] According to some embodiments of the present disclosure, the fourth insulating layer 40 may be replaced by an insulating pattern. The third electrode G3 of the third transistor T3 is located on the insulating pattern. According to some embodiments, the third electrode G3 may have the same shape as the insulating pattern in a plan view. According to some embodiments, for ease of description, one third electrode G3 is shown, but the third transistor T3 may include two third electrodes.

[0182] The fifth insulating layer 50 covering the third electrode G3 is located on the fourth insulating layer 40. According to some embodiments, the fifth insulating layer 50 may include a silicon oxide layer and a silicon nitride layer. The fifth insulating layer 50 may include a plurality of silicon oxide layers and a plurality of silicon nitride layers alternately stacked.

[0183] According to some embodiments, the fourth transistor T4 (refer to Figure 7 ) can be formed by the same process as the first electrode S3 and the second electrode D3 of the third transistor T3. Figure 5 ) can be formed simultaneously with the first electrode S3 and the second electrode D3 of the reset transistor ST1 by the same process as that of the third transistor T3.

[0184] At least one insulating layer is also located on the fifth insulating layer 50. Figure 8 As shown in , the sixth insulating layer 60 and the seventh insulating layer 70 may be located on the fifth insulating layer 50. The sixth insulating layer 60 and the seventh insulating layer 70 may be organic layers, and may have a single-layer structure or a multi-layer structure. Each of the sixth insulating layer 60 and the seventh insulating layer 70 may be a polyimide-based resin layer of a single-layer structure. However, the present disclosure is not limited thereto. For example, the sixth insulating layer 60 and the seventh insulating layer 70 may include at least one of an acrylate-based resin, a methacrylate-based resin, a polyisoprene-based resin, an ethylene-based resin, an epoxy-based resin, a urethane-based resin, a cellulose-based resin, a siloxane-based resin, a polyamide-based resin, and a perylene-based resin.

[0185] The first connection electrode CNE10 may be located on the fifth insulating layer 50. The first connection electrode CNE10 may be connected to the connection signal line CSL through a first contact hole CH1 penetrating the first to fifth insulating layers 10 to 50, and the second connection electrode CNE20 may be connected to the first connection electrode CNE10 through a second contact hole CH2 penetrating the sixth insulating layer 60. According to some embodiments of the present disclosure, at least one of the fifth to seventh insulating layers 50 to 70 may be omitted.

[0186] The element layer DP_ED includes a red light emitting element ED_R and a pixel defining layer PDL. The red anode electrode R_AE of the red light emitting element ED_R is located on the seventh insulating layer 70. The red anode electrode R_AE of the red light emitting element ED_R may be connected to the second connection electrode CNE20 through a third contact hole CH3 penetrating the seventh insulating layer 70.

[0187] The first opening OP1 of the pixel defining layer PDL exposes at least a portion of the red anode electrode R_AE of the red light emitting element ED_R. The first opening OP1 of the pixel defining layer PDL may define a light emitting area PXA. For example, a plurality of pixels PX (refer to Figure 5 ) can be arranged on the display panel DP (reference Figure 5 ). A region in which a plurality of pixels PX are arranged may be defined as a pixel region, and one pixel region may include a light emitting region PXA and a non-light emitting region NPXA adjacent to the light emitting region PXA. The non-light emitting region NPXA may surround the light emitting region PXA.

[0188] The red light emitting layer R_EL is located on the red anode electrode R_AE. The red light emitting layer R_EL may be located only in the region corresponding to the first opening OP1. The red light emitting layer R_EL may be independently formed for each of the plurality of pixels PX. According to some embodiments, a patterned red light emitting layer R_EL is shown as an example, but the present disclosure is not limited thereto. A common light emitting layer may be commonly arranged in a plurality of pixels PX. In this case, the common light emitting layer may generate white light or blue light.

[0189] The red cathode electrode R_CA may be located on the red light emitting layer R_EL. The red cathode electrode R_CA is commonly arranged in the plurality of pixels PX.

[0190] According to some embodiments, the hole transport layer and the hole injection layer may also be located between the red anode electrode R_AE and the red light emitting layer R_EL. In addition, the electron transport layer and the electron injection layer may also be located between the red light emitting layer R_EL and the red cathode electrode R_CA.

[0191] The encapsulation layer TFE is located on the red cathode electrode R_CA. The encapsulation layer TFE may cover a plurality of pixels PX. According to some embodiments, the encapsulation layer TFE directly covers the red cathode electrode R_CA. According to some embodiments of the present disclosure, the display panel DP may further include a capping layer directly covering the red cathode electrode R_CA. According to some embodiments of the present disclosure, the stacked structure of the red light emitting element ED_R is Figure 8 The structure shown in can have a vertically inverted structure.

[0192] like Figure 8 As shown in FIG. 1 , the circuit layer DP_CL may further include a sensor driving circuit O_SD (refer to Figure 7 ) is a part of a semiconductor pattern of the sensor driving circuit O_SD. For the convenience of description, the reset transistor ST1 of the semiconductor pattern belonging to the sensor driving circuit O_SD is shown. The first electrode STS1, the channel portion STA1, and the second electrode STD1 of the reset transistor ST1 are formed from the semiconductor pattern. According to some embodiments of the present disclosure, the semiconductor pattern may include a metal oxide. The first electrode STS1 and the second electrode STD1 include a metal reduced from the metal oxide. The first electrode STS1 and the second electrode STD1 may include a metal layer having a given thickness from the upper surface of the semiconductor pattern and including the reduced metal. The fourth insulating layer 40 is arranged to cover the first electrode STS1, the channel portion STA1, and the second electrode STD1 of the reset transistor ST1. The third electrode STG1 of the reset transistor ST1 is located on the fourth insulating layer 40. According to some embodiments, the third electrode STG1 may be a part of the metal pattern. The third electrode STG1 of the reset transistor ST1 overlaps the channel portion STA1 of the reset transistor ST1. According to some embodiments, for the convenience of description, one third electrode STG1 is shown, but the reset transistor ST1 may include two third electrodes.

[0193] According to some embodiments of the present disclosure, the reset transistor ST1 may be located on the same layer as the third transistor T3. That is, the first electrode STS1, the channel portion STA1, and the second electrode STD1 of the reset transistor ST1 may be formed by the same process as the first electrode S3, the channel portion A3, and the second electrode D3 of the third transistor T3. The third electrode STG1 of the reset transistor ST1 may be simultaneously formed by the same process as the third electrode G3 of the third transistor T3. According to some embodiments, the first electrode and the second electrode of each of the amplifying transistor ST2 and the output transistor ST3 of the sensor driving circuit O_SD may be formed by the same process as the first electrode S1 and the second electrode D1 of the first transistor T1. Since the reset transistor ST1 and the third transistor T3 are formed on the same layer by the same process, a process for forming the reset transistor ST1 may not be required separately, and thus the cost may be reduced and the process efficiency may be improved. For example, the third electrode STG1 of the reset transistor ST1 corresponds to Figure 7 The third electrode G3 of the third transistor T3 corresponds to the jth sensing control line CLj. Figure 7 Therefore, even if the sensor FX (reference Figure 7 ) is further formed to provide a different Figure 7 ), a j-th sensing control line CLj of the sensing control signal CS of the j-th compensation scan signal SCj may not need a process for forming only the j-th sensing control line CLj, and therefore, process efficiency may be relatively improved. This may mean a reduction in cost.

[0194] The element layer DP_ED may further include a first light sensing element OPD1 and a second light sensing element OPD2 (see Figure 7 ). Below, for the convenience of description, only Figure 8 The first light sensing element OPD1 is shown in FIG. The first sub anode electrode O_AE1 of the first light sensing element OPD1 is located on the seventh insulating layer 70. According to some embodiments, the first sub anode electrode O_AE1 may be electrically connected to the second electrode STD1 of the reset transistor ST1 through a contact hole penetrating the fourth insulating layer 40 to the seventh insulating layer 70 in a plan view.

[0195] The second opening OP2 of the pixel defining layer PDL exposes at least a portion of the first sub-anode electrode O_AE1 of the first light sensing element OPD1. The second opening OP2 of the pixel defining layer PDL may define a sensing area SA. When the area where the first photoelectric conversion layer O_PCL1 is located is referred to as a "sensing area SA", an area surrounding the sensing area SA may be defined as a non-sensing area NSA. According to some embodiments, a non-pixel area NPA may be defined between the non-sensing area NSA and the non-luminous area NPXA.

[0196] Fig. 9 is a flowchart illustrating a method of controlling a display device according to some embodiments of the present disclosure, and Fig.10 is a conceptual diagram illustrating a display device and a user's hand according to some embodiments of the present disclosure.

[0197] refer to Figure 4 , Figure 5 , Fig. 9 and Fig.10 , the user's hand ET can naturally hold the display device DD. When the user's hand ET naturally holds the display device DD, the control method of the display device DD according to some embodiments of the present disclosure can easily perform a security authentication operation.

[0198] The main driving unit 1000C may further include a sensing unit that senses the direction of the display device DD. The sensing unit may include a gyro sensor.

[0199] The sensing unit may sense the direction of the display device DD (S100). In this case, when the display device DD is in the forward direction, the main driving unit 1000C may perform an operation of sensing the fingerprint of the user's hand ET.

[0200] The input sensing layer ISL may sense an input made by the user's hand ET. The sensor driving unit 200C may transmit a coordinate signal I-SS to the main driving unit 1000C. The main driving unit 1000C may sense coordinates based on the coordinate signal I-SS.

[0201] The main driving unit 1000C may define the first sensing area AAR1 based on the coordinates. In the display area DA, the first sensing area AAR1 may be an area overlapping with the thumb of the user's hand ET. The first sensing area AAR1 may overlap with the third display area DA3 of the display area DA.

[0202] The main driving unit 1000C may control the driving controller 100 .

[0203] Under the control of the driving controller 100, a first pixel belonging to the first sensing area AAR1 among the plurality of pixels PX may emit light (S200). The first pixel may include a pixel located in the first sensing area AAR1 among the plurality of pixels PX.

[0204] A first sensor belonging to the first sensing area AAR1 among the plurality of sensors FX may sense first biometric information from the user's hand ET (S300). The first sensor may include a sensor located in the first sensing area AAR1 among the plurality of sensors FX. The first biometric information may include a thumb fingerprint of the user's hand ET. The first sensor may be adjacent to the first pixel. The first sensor may sense the first biometric information based on light reflected by a ridge or valley of the thumb of the user's hand ET after the light is emitted from the first pixel.

[0205] The main drive unit 1000C may perform a first security authentication check operation (S400) based on the first biometric information. The first security authentication check operation may be an operation of matching the first biometric information with the stored first authentication information. And the first security authentication check operation may be an operation of determining whether the first biometric information matches the pre-stored first authentication information.

[0206] When the first security authentication is checked, the main driving unit 1000C may drive the display device DD.

[0207] The first authentication information may include first biometric information and information corresponding to the first sensing area AAR1.

[0208] According to the present disclosure, the main drive unit 1000C may allow security authentication only when the corresponding biometric information matches in the designated area, and may drive the display device DD (S800). For example, the main drive unit 1000C may allow security authentication only when the thumb of the user's hand ET is recognized in the designated area corresponding to the thumb position of the third display area DA3 of the display area DA, and may not allow security authentication when the thumb is recognized in any other area. Therefore, a display device DD with relatively improved security strength and a control method thereof may be provided.

[0209] When the first security authentication is not checked, the main driving unit 1000C may define a second sensing area AAR2 based on the coordinates. In the display area DA, the second sensing area AAR2 may be an area overlapping at least one of the index finger, middle finger, ring finger, and little finger of the user's hand ET. The second sensing area AAR2 may overlap with a fifth display area DA5 of the display area DA.

[0210] Under the control of the driving controller 100, a second pixel belonging to the second sensing area AAR2 among the plurality of pixels PX may emit light (S500). The second pixel may include a pixel located in the second sensing area AAR2 among the plurality of pixels PX. When the first biometric information and the first authentication information do not match, an operation in which the second pixel in the second sensing area AAR2 emits light may be performed.

[0211] A second sensor belonging to the second sensing area AAR2 among the plurality of sensors FX may sense second biometric information from the user's hand ET (S600). The second sensor may include a sensor located in the second sensing area AAR2 among the plurality of sensors FX. The second biometric information may include a fingerprint of at least one of the index finger, middle finger, ring finger, and little finger of the user's hand ET. The second sensor may be adjacent to the second pixel. The second sensor may sense the second biometric information based on light reflected by a ridge or valley of the fingerprint of the user's hand ET after the light is emitted from the second pixel.

[0212] The main drive unit 1000C may perform a second security authentication check operation (S700) based on the second biometric information. The second security authentication check operation may be an operation of matching the second biometric information with the stored second authentication information. And the second security authentication check operation may be an operation of determining whether the second biometric information matches the pre-stored second authentication information. The second authentication information may be different from the first authentication information.

[0213] When the second security authentication is checked, the main driving unit 1000C may drive the display device DD. That is, when the first biometric information matches the first authentication information, or when the second biometric information matches the second authentication information, the main driving unit 1000C may drive the display panel DP.

[0214] According to the present disclosure, when the user's hand ET holds the display device DD, the main drive unit 1000C can first sense the area where the thumb is placed, and can sense the first biometric information in the first sensing area AAR1. The security authentication operation can be performed based on the thumb of the user's hand ET; when there is no match, the second biometric information can be sensed in the second sensing area AAR2 by sensing any other area where at least one of the index finger, middle finger, ring finger and little finger is placed. The security authentication operation can be performed based on at least one of the index finger, middle finger, ring finger and little finger of the user's hand ET. By performing two security authentication operations in succession, the reliability of security authentication can be relatively improved. Therefore, a display device DD with relatively improved security strength and a control method thereof can be provided.

[0215] In addition, according to the present disclosure, when the four surfaces of the display device DD are bent, a second display area DA2, a third display area DA3, a fourth display area DA4, and a fifth display area DA5 (refer to Figure 1 ). Generally, when the user holds the display device DD, the user's hand ET can be warped around the third display area DA3 and the fifth display area DA5. When the user holds and uses the display device DD, a security authentication operation such as logging in may be required; in this case, the user's hand ET can easily perform the security authentication operation using the display device DD held by the user's hand ET without the need for a separate position movement. Therefore, a display device DD and a control method thereof in which the convenience of the user is relatively improved can be provided.

[0216] The second authentication information may include second biometric information and information corresponding to the second sensing area AAR2.

[0217] According to the present disclosure, the main drive unit 1000C may allow security authentication only when the corresponding biometric information matches in the designated area, and may drive the display device DD (S800). For example, the main drive unit 1000C may allow security authentication only when the index finger of the user's hand ET is recognized in the designated area corresponding to the index finger position of the fifth display area DA5 of the display area DA, and may not allow security authentication when the index finger is recognized in any other area. Therefore, a display device DD with relatively improved security strength and a control method thereof may be provided.

[0218] In addition, the display device DD may also perform a security authentication operation. The main drive unit 1000C may define a third sensing area AAR3 or a fourth sensing area AAR4 based on the coordinates. Each of the third sensing area AAR3 and the fourth sensing area AAR4 may be an area overlapping a portion of the palm of the user's hand ET. The third sensing area AAR3 may overlap with the third display area DA3 of the display area DA, and the fourth sensing area AAR4 may overlap with the fourth display area DA4 of the display area DA.

[0219] A third pixel belonging to the third sensing area AAR3 or the fourth sensing area AAR4 among the plurality of pixels PX may emit light under the control of the driving controller 100. The third pixel may include a pixel located in the third sensing area AAR3 or the fourth sensing area AAR4 among the plurality of pixels PX.

[0220] A third sensor belonging to the third sensing area AAR3 or the fourth sensing area AAR4 among the plurality of sensors FX may sense third biometric information from the user's hand ET. The third sensor may include a sensor located in the third sensing area AAR3 or the fourth sensing area AAR4 among the plurality of sensors FX. The third biometric information may include information about a portion of the palm of the user's hand ET. The third sensor may be adjacent to a third pixel. The third sensor may sense the third biometric information based on light reflected by a ridge or valley of a fingerprint of the user's hand ET after the light is emitted from the third pixel.

[0221] The main drive unit 1000C may perform a third security authentication check operation based on the third biometric information. The third security authentication check operation may be an operation of matching the third biometric information with the stored third authentication information. And the third security authentication check operation may be an operation of determining whether the third biometric information matches the pre-stored third authentication information. The third authentication information may be different from the first authentication information and the second authentication information.

[0222] When the third security authentication is checked, the main driving unit 1000C may drive the display device DD.

[0223] refer to Fig.10 An example is described in which the authentication operation is performed in the order of the thumb, index finger, and palm of the user's hand ET, but the order of the security authentication operation according to some embodiments of the present disclosure is not limited to this. For example, the security authentication operation can be performed in the order of the thumb, palm, and index finger.

[0224] In addition, reference Fig.10 An example in which the display device DD is driven when the security authentication is checked in one of the three security authentication check operations is described, but the control method of the display device DD according to some embodiments of the present disclosure is not limited thereto. For example, the display device DD can be operated only when the security authentication is checked in at least two of the three security authentication check operations. In this case, when the first security authentication is checked in operation S400 (i.e., in the first security authentication check operation), operation S700, i.e., the second security authentication check operation, can be performed, and when the second security authentication is checked, the display device DD can be operated. For example, the display device DD can check at least two biometric information (e.g., thumb and index finger) of the user's hand ET in a given order, and when each of the two biometric information matches, the display device DD can be operated. The main drive unit 1000C can be operated based on a combination of a first security authentication operation of sensing the thumb and a second security authentication operation of sensing at least one of the index finger, middle finger, ring finger, and little finger, depending on the user's security strength and / or convenience.

[0225] Fig.11 is a conceptual diagram illustrating a display device and a user's hand according to some embodiments of the present disclosure.

[0226] refer to Figure 4 , Figure 5 and Fig.11 , the main driving unit 1000C may define a fifth sensing area AAR5 based on the coordinates sensed by the input sensing layer ISL. The fifth sensing area AAR5 may overlap the third display area DA3 of the display area DA.

[0227] A fifth pixel belonging to the fifth sensing area AAR5 among the plurality of pixels PX may emit light under the control of the driving controller 100. The fifth pixel may include a pixel located in the fifth sensing area AAR5 among the plurality of pixels PX.

[0228] A fifth sensor belonging to the fifth sensing area AAR5 among the plurality of sensors FX may sense fifth biometric information from the user's hand ET. The fifth sensor may include a sensor located in the fifth sensing area AAR5 among the plurality of sensors FX. The fifth biometric information may include information about an edge of the user's hand ET. The fifth sensor may be adjacent to a fifth pixel. The fifth sensor may sense the fifth biometric information based on light reflected by the edge of the user's hand ET after light is emitted from the fifth pixel.

[0229] The main driving unit 1000C may perform a fourth security authentication check operation based on the fifth biometric information. The fourth security authentication check operation may be an operation of matching the fifth biometric information with the stored fifth authentication information.

[0230] When the fourth security authentication is checked, the main driving unit 1000C may drive the display device DD.

[0231] Fig.12 is a conceptual diagram illustrating a display device and a user's hand according to some embodiments of the present disclosure.

[0232] refer to Figure 4 , Figure 5 and Fig.11 , the main driving unit 1000C may define a sixth sensing area AAR6 based on the coordinates sensed by the input sensing layer ISL. The sixth sensing area AAR6 may overlap the third display area DA3 of the display area DA.

[0233] A sixth pixel belonging to the sixth sensing area AAR6 among the plurality of pixels PX may emit light under the control of the driving controller 100. The sixth pixel may include a pixel located in the sixth sensing area AAR6 among the plurality of pixels PX.

[0234] A sixth sensor belonging to the sixth sensing area AAR6 among the plurality of sensors FX may sense sixth biometric information from the user's hand ET. The sixth sensor may include a sensor located in the sixth sensing area AAR6 among the plurality of sensors FX. The sixth biometric information may include information about the fingers and palm of the user's hand ET. The sixth sensor may be adjacent to the sixth pixel. The sixth sensor may sense the sixth biometric information based on light reflected by the fingers and palm of the user's hand ET after emitting light from the sixth pixel.

[0235] The main driving unit 1000C may perform a fifth security authentication check operation based on the sixth biometric information. The fifth security authentication check operation may be an operation of matching the sixth biometric information with the stored sixth authentication information.

[0236] When the fifth safety authentication is checked, the main driving unit 1000C may drive the display device DD.

[0237] According to some embodiments, when the user's hand holds the display device, the main drive unit may first sense the area where the thumb is placed, and may sense the first biometric information in the first sensing area. A security authentication operation may be performed based on the thumb of the user's hand; when there is no match, the second biometric information may be sensed in the second sensing area by sensing any other area where at least one of the index finger, middle finger, ring finger, and little finger is placed. A security authentication operation may be performed based on at least one of the index finger, middle finger, ring finger, and little finger of the user's hand. The reliability of security authentication may be relatively improved by performing two security authentication operations in succession. Therefore, a display device with relatively improved security strength and a control method thereof may be provided.

[0238] While aspects of some embodiments of the present disclosure have been described with reference to the embodiments thereof, it will be apparent to those skilled in the art that various changes and modifications may be made thereto without departing from the spirit and scope of the present disclosure as set forth in the appended claims and their equivalents.

Claims

1. A method for controlling a display device, the display device comprising a display panel and an input sensing layer, wherein a display area is defined in the display panel and the display panel comprises a plurality of pixels and a plurality of sensors, the input sensing layer being on the display panel and configured to sense an external input, the method comprising: allowing a first pixel among the plurality of pixels to emit light, wherein the first pixel is in a first sensing area of ​​the display area overlapping the external input; sensing first biometric information from the external input at a first sensor among the plurality of sensors, wherein the first sensor is in the first sensing area; matching the first biometric information with stored first authentication information; allowing a second pixel of the plurality of pixels to emit light, wherein the second pixel is in a second sensing area of ​​the display area, the second sensing area overlapping the external input and different from the first sensing area; sensing second biometric information different from the first biometric information from the external input at a second sensor among the plurality of sensors, wherein the second sensor is in the second sensing area; matching the second biometric information with second authentication information different from the stored first authentication information; and The display panel is driven based on the first biometric information matching the first authentication information or the second biometric information matching the second authentication information.

2. The method according to claim 1, wherein: Allowing the second pixel to emit the light is performed based on the first biometric information and the first authentication information not matching each other.

3. The method according to claim 1, wherein: The external input includes a user's hand, and The first biometric information includes a fingerprint of the thumb of the hand of the user.

4. The method according to claim 3, wherein: The second biometric information includes a fingerprint of an index finger of the hand of the user.

5. The method according to claim 3, wherein: The second biometric information includes a palm of the hand of the user.

6. The method according to claim 1, wherein: The display device further includes a sensing unit configured to sense a direction of the display device. Wherein, the method further comprises: sensing the direction of the display device at the sensing unit, and Wherein, sensing the direction of the display device comprises: Based on the display device being in a forward direction, the first pixel of the first sensing area is allowed to emit the light.

7. The method according to claim 1, wherein: Allowing the first pixel to emit the light includes: sensing the coordinates of the external input at the input sensing layer; defining the first sensing area based on the coordinates; and The first pixel among the plurality of pixels overlapping the first sensing area is allowed to emit the light.

8. The method according to claim 1, wherein: The first pixel is adjacent to the first sensor, and the second pixel is adjacent to the second sensor.

9. A display device, comprising: a display panel in which a display area and a non-display area adjacent to the display area are defined, and the display panel includes a plurality of pixels and a plurality of sensors; an input sensing layer on the display panel and configured to sense an external input; A driving controller configured to drive the display panel; a readout circuit electrically connected to the plurality of sensors and configured to output a sensing signal to the drive controller; as well as a main drive unit configured to drive the drive controller, wherein the external input overlaps the display area and defines a first sensing area and a second sensing area different from the first sensing area, wherein a first sensor in the first sensing area among the plurality of sensors is configured to sense first biometric information input from the external input, wherein the drive controller matches the first biometric information with the stored first authentication information, wherein a second sensor in the second sensing area among the plurality of sensors is configured to sense second biometric information input from the external input, wherein the drive controller is configured to match the second biometric information with stored second authentication information, and Wherein, when the first biometric information matches the first authentication information or when the second biometric information matches the second authentication information, the main driving unit and the driving controller are configured to drive the display panel.

10. The display device according to claim 9, wherein: The external input includes an input from a user's hand, wherein the first biometric information includes a thumbprint corresponding to the hand of the user, and The second biometric information includes a palm corresponding to the hand of the user.

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