Abstract: According to an aspect of the invention, a fingerprint sensor for a display device includes: a substrate having first and second surfaces; a light transmission layer including a first layer disposed on the first surface of the substrate and having first openings in at least one first conductive layer, and a second layer disposed on the first surface of the substrate and having second openings in at least one second conductive layer; a light emitting element layer disposed on the first layer and the second layer and having at least one light emitting element; and a sensor layer disposed on the second surface of the substrate and having light sensors, where at least a portion of the first openings and at least a portion of the second openings at least partially overlap and have different sizes.

Abstract: A method for preparing a core-shell copolymer includes polymerizing a core by polymerizing 70 to 90 parts by weight of a methyl (meth)acrylate monomer and 1 part to 20 parts by weight of a C2-C12 alkyl (meth)acrylate monomer, based on 100 parts by weight of the total content of the monomer; at a point when a polymerization conversion ratio is 70% to 90% in the polymerization of the core, polymerizing the core by adding and polymerizing 1 part to 10 parts by weight of the methyl (meth)acrylate monomer and 0.04 to 0.7 parts by weight of a polyfunctional acrylic cross-linking agent; and polymerizing a core-shell copolymer by adding and polymerizing 1 to 10 parts by weight of the methyl (meth)acrylate monomer and 1 to 10 parts by weight of an aromatic vinyl monomer in the presence of the core.

Abstract: A display device includes a light sensing array layer (LSAL), a substrate, a selective light transmission layer (SLTL), a pixel circuit layer (PCL), a display element layer (DEL), and pixels. The LSAL includes an optical sensor to sense incident light. The substrate is on the LSAL and includes a display area (DA) including pixel areas (PAs), and a non-DA adjacent to the DA. The SLTL is disposed on the substrate and includes through-holes to form a path of light onto the optical sensor, and a light-blocking conductive pattern (LBCP) between the through-holes. The PCL is disposed on the SLTL and includes a conductive layer and an insulation layer. The DEL is disposed on the PCL and emits light. Each pixel includes a pixel circuit disposed on the PCL, and a light emitting element on the DEL in a corresponding pixel area. The LBCP is electrically connected to the conductive layer.

Abstract: A display device includes a base, a photosensor disposed on a surface of the base, a light emitting element disposed on the photosensor that includes a bottom electrode, an upper electrode and a light emitting layer interposed between the bottom electrode and the upper electrode, and a light condenser disposed on the light emitting element. The light condenser does not overlap the bottom electrode in a plan view.

Abstract: There are provided a fingerprint sensor and a display device including the same. The fingerprint sensor includes a base substrate in which a first sensing region and a second sensing region are defined on a plane, first photo sensors disposed on the first sensing region of the base substrate, and second photo sensors disposed on the second sensing region of the base substrate. The first sensing region has an area larger than that of the second sensing region, and the first photo sensor has a width wider than that of the second photo sensor.

Abstract: A method for preparing a core-shell copolymer includes: preparing a core by polymerizing a conjugated diene-based monomer and adding an initiator including two or more peroxide-based functional groups when a polymerization conversion rate is 95% or more and less than 100%; and preparing a core-shell copolymer by polymerizing an alkyl (meth)acrylate monomer in the presence of the core and a macro initiator having a weight average molecular weight of 4,000 g/mol to 50,000 g/mol, wherein the initiator is added in an amount of more than 0 parts by weight and less than 2.5 parts by weight based on 100 parts by weight of the conjugated diene-based monomer, and the macro initiator is added in an amount of more than 0 parts by weight and less than 3.5 parts by weight based on 100 parts by weight of the alkyl (meth)acrylate monomer.

Abstract: A fingerprint sensor includes: a first layer including a plurality of pixels; a light transmitting hole array layer including a plurality of light transmitting holes providing light transmitting paths of light rays that are incident through the first layer; and a sensor layer including a plurality of photo sensors configured to sense the light rays that pass through the light transmitting holes and are incident on the sensor layer. A resolution at which the photo sensors are disposed in first areas on the sensor layer differs from a resolution at which the photo sensors are disposed in second areas on the sensor layer.

Abstract: The fingerprint sensor may include: a light transmitting hole an-ay layer including a plurality of light blocking patterns having a plurality of light transmitting holes to form light transmitting paths of light rays; a sensor layer including a plurality of photo sensors configured to sense light rays that pass through the light transmitting holes and are incident on the sensor layer; and metal patterns configured to apply electrical signals to pixels or the light blocking patterns. A gap between the light blocking patterns may overlap with at least some of the metal patterns.

Abstract: A display device including a plurality of pixels arranged in a matrix includes a substrate, a first anode disposed on the substrate, and opaque conductive layers disposed between the substrate and the first anode, in which the plurality of pixels include an opening pixel including a first anode arrangement region, a pinhole region located around the first anode arrangement region and surrounded by the first anode, and a first anode non-arrangement region including an exposed region located outside the first anode, and the opaque conductive layers completely cover the exposed region and at least partially expose the pinhole region.

Abstract: Provided is a method for preparing an acrylic copolymer, and more specifically, provided are a method for preparing an acrylic copolymer including: i) adding and polymerizing 50 to 80 parts by weight of a methyl (meth)acrylate monomer and 10 to 49 parts by weight of a C2-C12 alkyl (meth)acrylate monomer, based on 100 parts by weight of a total monomer content, in a reactor (S1); and ii) adding and polymerizing 1 to 10 parts by weight of the methyl (meth)acrylate monomer, more than 0.01 part by weight to less than 1 part by weight of an acrylic cross-linking agent, and a surfactant, based on 100 parts by weight of the total monomer content, in which a polymerization conversion ratio of the polymerization in step (S1) is 70% to 90% (S2), an acrylic copolymer prepared therefrom, and a resin composition including the same.

Abstract: A fuel vapor purge system may include a turbocharger including a turbine disposed in an exhaust line, and a compressor; a canister connected to a fuel tank through a vapor line; a fuel pressure detector configured for detecting pressure in the fuel tank; a canister closing valve selectively closing an atmospheric path provided in the canister; a purge control solenoid valve disposed in a main purge line connected to the canister and selectively closing fuel vapor collected at the canister; a first check valve disposed in a first purge line and preventing the fuel vapor flowing along the first purge line from flowing reversely; a second check valve disposed in a second purge line preventing the fuel vapor flowing along the second purge line from flowing reversely; a differential pressure generating valve disposed in the intake line, and generating negative pressure; and an intake pressure sensor disposed in the intake line between the differential pressure generating valve and the compressor.

Abstract: A fingerprint sensing device includes: a fingerprint sensor including scan lines and initialization lines extending in a first direction and arranged in a second direction, sensing lines extending in the second direction and arranged in the first direction, and sensing pixels connected to the scan lines, the initialization lines, and the sensing lines and disposed in a matrix configuration; a scan driver configured to apply an enable-level initialization signal to a-numbered sensing pixel rows while applying a disable-level initialization signal to b-numbered sensing pixel rows, and applying an enable-level scan signal to one sensing pixel row in the b-numbered sensing pixel rows; and a sensing driver configured to receive a sensing signal from the sensing pixel row to which the scan signal is applied through the sensing lines, wherein the a and b are positive numbers that are greater than 2.

Abstract: An air conditioner of the disclosure includes a compressor; an indoor heat exchanger temperature sensor configured to sense an indoor heat exchanger temperature; an indoor humidity sensor configured to sense indoor humidity; and a controller configured to calculate a dew point temperature using the humidity value detected by the indoor humidity sensor and an indoor set temperature, and control a frequency of the compressor based on the calculated dew point temperature and the indoor heat exchanger temperature.

Abstract: An optical unit and a display device including same. The optical unit is for a fingerprint sensor of the display device, and the optical unit includes a first prism to block light rays incident at an angle greater than a detection target incident angle; and a second prism disposed under the first prism to block light rays incident at an angle less than the detection target incident angle.

Abstract: A fingerprint recognition device including: a sensing panel including a plurality of sensing blocks, wherein each of the sensing blocks includes a plurality of sensors; a scan driving unit configured to provide a scan signal to the sensors; and a timing controller configured to provide a second initiation signal to the scan driving unit, wherein each of the sensors includes a reference capacitor and a sensing capacitor, the scan driving unit includes scan drivers that correspond to rows of the sensing blocks, in a fingerprint recognition mode, the timing controller provides the second initiation signal to a scan driver corresponding to a sensing block where a touch input is generated, and in a touch mode, the timing controller sequentially provides the second initiation signal to the scan drivers.

Abstract: A fingerprint sensor including first, second, and third lines, and a unit sensor coupled to the first, the second, and the third lines. The unit sensor includes a pixel electrode coupled between the first line and the second line, a first capacitance element coupled between the first line and the pixel electrode, a second capacitance element coupled between the second line and the pixel electrode, a switching element coupled between the pixel electrode and one of the first line, the second line, a first line of an adjacent unit sensor, and a second line of the adjacent unit sensor, and including a control electrode coupled to the third line, and a third capacitance element coupled between the third line and the pixel electrode, in which at least one of the first and the second capacitance elements includes a variable capacitance element.

Abstract: A method for producing a grain-oriented electrical steel sheet according to an embodiment of the present invention comprises the steps of: heating a slab satisfying the following formula 1 and including, by wt %, 3.2 to 4.0% of Si, 0.03 to 0.09% of C, 0.015 to 0.040% of A1, 0.04 to 0.15% of Mn, 0.001 to 0.005% of N, 0.01% or less of S (exclusive of 0%), and the balance of Fe and other inevitable impurities; hot rolling the slab to produce a hot rolled sheet; hot band annealing the hot rolled sheet to at a cracking temperature of 900 to 980? for 30 to 300 seconds; cold rolling the hot rolled sheet, which has completely been hot band annealed, to produce a cold rolled sheet; subjecting the cold rolled sheet to primary recrystallization annealing; and conducting secondary recrystallization annealing for the cold rolled sheet which has completely been primary recrystallization annealed. [Mn]×[S]?0.0004??[Formula 1] (wherein [Mn] and [S] are contents (wt %) of Mn and S in the slab, respectively.

Abstract: According to an exemplary embodiment of the present invention, a manufacturing method of a grain-oriented electrical steel sheet, includes: preparing a slab; heating the slab; forming a hot-rolled sheet by hot-rolling the slab; performing hot-rolled sheet annealing on the hot-rolled sheet; forming a cold-rolled sheet by cold-rolling the hot-rolled sheet that has been completely subjected to the hot-rolled sheet annealing; performing first recrystallization annealing on the cold-rolled sheet; and performing second recrystallization annealing on the cold-rolled sheet that has been completely subjected to the first recrystallization annealing, wherein the hot-rolled sheet undergoes a first heating step, a second heating step, and a soaking step, and a temperature rise rate t1 of the first heating step and a temperature rise rate t2 of the second heating step satisfy Formula 1.

Abstract: A device for verifying a fingerprint includes: a sensing unit which captures a fingerprint image from a fingerprint of a user; a memory which stores a registered fingerprint image; and a controller which calculates a correlation coefficient between at least one region of the fingerprint image and the registered fingerprint image, and rotation-corrects the fingerprint image by a predetermined angle based on a result of comparing the correlation coefficient and a threshold value, where an area of the at least one region is within a range of about 5% to about 40% of an area of the fingerprint image.

Abstract: A touch panel includes a touch sensing circuit including a plurality of driving electrode lines and a plurality of sensing electrode lines, which intersect the driving electrode lines. The touch panel further includes a driving signal generation circuit that generates a plurality of driving signals and transmits the driving signals to the driving electrode lines, and a sensing circuit that receives a plurality of sensing signals from the sensing electrode lines. The driving signals have voltages that are not equal to zero during a first time zone, and the sum of driving signals generated at the same time is maintained to be equal to zero during the first time zone.