A display device includes first and second unit pixels adjacent to each other in a first direction. Each of the first and second unit pixels includes a first group disposed in a first row and a second group disposed in a second row spaced apart from the first row. The first group includes a first light emitting area emitting a first light, and a second light emitting area emitting a second light. The second group includes a light receiving area and third and fourth light emitting areas spaced apart from each other with the light receiving area interposed therebetween and emitting the third light. The fourth light emitting area of the first unit pixel and the third light emitting area of the second unit pixel are spaced apart from each other by a distance from about 25 micrometers to about 100 micrometers in the first direction.

A method for enabling interaction on an electronic device using fingerprint on display to execute an operation of the electronic device based on the detected fingerprint. The method may include detecting at least one fingerprint from at least one touch input on a display screen, identifying an object corresponding to the at least one fingerprint, and performing at least one actions based on the object.

The disclosure provides an electronic device, including: a circuit substrate, an inorganic light emitting unit, and an opaque layer. The circuit substrate includes an optical sensor. The inorganic light emitting unit is disposed on the circuit substrate and is configured to emit a light. The opaque layer is disposed on the circuit substrate, including a first opening through which a portion of the light is transmitted to the optical sensor.

A display substrate, a method for manufacturing the same and a display device are provided. The display substrate includes a base substrate and a thin film transistor array arranged on the base substrate. Multiple pixels arranged in an array are provided in an effective display region of the display substrate. The effective display region includes an optical element arrangement region and other display regions, and a transmittance of the optical element arrangement region is larger than transmittances of the other display regions. In the optical element arrangement region, an optical element is arranged on a side of the base substrate away from the thin film transistor array, and the optical element emits and receives light that is transmitted through the display substrate.

A method of temperature compensation in an optical-fingerprint detection system includes acquiring a first reading associated with one or more pixels of an array. The first reading is a baseline reading. The method further includes acquiring a second reading associated with the one or more pixels of the array. The second reading includes the baseline plus a signal. Producing a temperature compensated signal reading by subtracting the first reading from the second reading. The array is an optical-fingerprint array, and each pixel of the array is coupled to a readout circuit via a pixel switch. The method includes row-based and frame-based schemes and a blind pixel scheme. Readout circuit improvements including multiplexed analog front-end (AFE), charge magnifier with column charge offset compensation and a low-noise gate driver circuit are provided.

An electronic device is provided by the present disclosure. The electronic device includes a substrate, a light emitting diode and an optical sensor. The light emitting diode is disposed on the substrate and emits a light. The optical sensor is disposed on the substrate and is configured to receive the light, and the optical sensor receives the light to generate a first electrical signal for fingerprint authentication, and receives the light to generate a second electrical signal for luminance calibration of the light.

A display device includes a display panel, a metal plate disposed on a bottom surface of the display panel and configured to support the display panel, a filling member disposed on the bottom surface of the display panel, the filling member being disposed on the same level as the metal plate relative to the bottom surface of the display panel, and a material of the metal plate being different from a material of the filling member, a fingerprint sensor disposed on a bottom surface of the filling member, and a member-sensor bonding member disposed between the fingerprint sensor and the filling member to bond the fingerprint sensor to the filling member. A hardness of the filling member is greater than a hardness of the member-sensor bonding member.

A fingerprint sensing device that includes an analog-front-end (AFE) circuit, an analog-to-digital converter (ADC) and a correction circuit is introduced. The AFE circuit generates an image signal, and the ADC converts the image signal to an output digital code. The correction circuit receives a plurality of first output digital codes that are generated by performing a plurality of first fingerprint sensing operations in a plurality of first exposure time periods. The correction circuit is further configured to calculate a second exposure time period for a second fingerprint sensing operation according to the first output digital codes and the first exposure time periods, wherein the fingerprint sensing device performs the second fingerprint operation in the second exposure time period to generate a second output digital code.

The present disclosure related to an optical fingerprint identification display and a driving method thereof. In the optical fingerprint identification display and the driving method thereof, the fingerprint identification display includes: a display panel and a processor. The display panel includes a plurality of pixels arranged in a two-dimensional matrix. The pixel includes: at least one subpixel which emits light on the basis of a first signal received from the processor; and an optical sensor which receives the light emitted from the subpixel and is reflected from a fingerprint and generates a second signal. The processor determines a touch region on the display panel, and transmits the first signal to one or more pixels included in the touch region, and identifies the fingerprint of the user on the basis of the second signal received from the pixel.

An optical structure is provided. The optical structure includes an optical element and a plurality of protrusions. The optical element has a planarized top surface. The plurality of protrusions are disposed on the planarized top surface, wherein each of the plurality of protrusions independently has a size in the subwavelength dimensions.