Shanghai Tianma Micro-electronics Co., Ltd.

Tianma Micro-electronics Co., Ltd.

Haochi Yu

Yang Zeng

Feng Lu

Qing Shan Zhang

Lihua Wang

Xiaoyue Su

Lingxiao Du

Lu Lian

Qijun Yao

Liang Xie

Hiroshi Haga

Ping An

Shin Takeuchi

Jiaxian Liu

Yaodong Wu

Shihao Tang

Kenichi Hayashi

Kenji Sera

Provided are a display panel and a display device, where the display panel includes a first light-emitting unit and a first color-resist block which are correspondingly disposed, where the first color-resist block includes a first display color-resist block and a first imaging color-resist block, the first light-emitting unit includes a first boundary and a second boundary which are disposed opposite to each other, the first boundary is located on a side of the second boundary near the first imaging color-resist block, the first display color-resist block includes a first edge and a second edge which are disposed opposite to each other, the first edge is located on a side of the second edge near the first imaging color-resist block, and a maximum distance between the first boundary and the first edge is greater than a maximum distance between the second boundary and the second edge.

Display panel and display device

An ultrasonic sensor device includes a plurality of pixels each including an ultrasonic transducer, and a control circuit configured to control the plurality of pixels. Each of the plurality of pixels is configured to hold a signal received by the ultrasonic transducer therein and send the signal to the control circuit as a response signal. The control circuit is configured to acquire an excitation response signal, which is a response signal sent from a pixel after the ultrasonic transducer therein is excited, acquire a non-excitation response signal, which is a response signal sent from a pixel when the ultrasonic transducer therein is not excited, and correct the excitation response signal based on the non-excitation response signal.

Ultrasonic sensor device and method of controlling the same

Provided are an ultrasonic fingerprint identification circuit, a driving method thereof, and a display device. The ultrasonic fingerprint identification circuit comprises fingerprint identification units each including an ultrasonic fingerprint identification sensor connected to a first node; a control module connected to a composite signal line, a first control signal line and the first node and configured to provide a reset potential to the first node and to provide a pull-up potential to the first node in response to a first level provided by the composite signal line; a reading module connected to a second control signal line, the first node and a reading signal line, and configured to read a detection signal of the first node. The first control signal line connected to one fingerprint identification unit is reused as the second control signal line connected to another fingerprint identification unit.

Ultrasonic fingerprint identification circuit, driving method thereof, and display device

A display panel and a display device are provided. The display panel includes a substrate, a driving unit including a first transistor, and at least one light-emitting element. The first transistor includes a first source electrode and a first drain electrode that are located at a side of the at least one light-emitting element close to the substrate. Each of the at least one light-emitting element includes a first electrode, a light-emitting layer, and a second electrode that are sequentially stacked. The first electrode is connected to the first drain electrode through a first via, and the first drain electrode is located at a side of the first source electrode close to the substrate. A material of the first drain electrode is different from a material of the first source electrode.

Display panel and display device having first transistor including first drain electrode and first source electrode made of different materials

A display device and a fingerprint recognition method are provided. The fingerprint recognition device includes at least two photosensitive regions receiving different colors of light, and the color of the light received by one photosensitive region corresponds to the emitted color of the light emitting sub-pixel in one color.

Display device and fingerprint recognition method

A display apparatus is provided. The display apparatus includes a cover layer having a first surface and an opposing second surface along a first direction, and the first surface is a touch-control operation surface of the display apparatus. The display apparatus further includes a light-shielding layer including a plurality of light-transmitting pinholes, and a light-sensitive sensor layer. The light-transmitting pinholes include first and second light-transmitting pinholes adjacent to each other. An imaging area on the light-sensitive sensor layer corresponding to the first light-transmitting pinhole is a first imaging area. Sensing areas on the light-sensitive sensor layer for detecting images corresponding to the first and the second light-transmitting pinholes are a first and a second sensing areas, respectively. The first imaging area covers and exceeds the first sensing area, and the first imaging area is non- overlapped with the second sensing area.

Display apparatus with pinhole imaging

Display panel, display apparatus and method for fingerprint recognition are provided. The display panel includes a base layer, a light-emitting layer and a light-shielding layer having at least first and second imaging pinholes. The second imaging pinhole is disposed between two adjacent first imaging pinholes. The display panel further includes a light-sensitive fingerprint sensor layer and a fingerprint recognition light source generating first light during a first time period and second light during a second time period. The first light passes through the first imaging pinholes and the second imaging pinholes do not allow the first light to pass through, and the second light passes through the second imaging pinholes and the first imaging pinholes do not allow the second light to pass through.

Display panel, display apparatus and method for fingerprint recognition

Provided are a display panel and a display device. The display panel includes a base substrate, drive circuits, a light-blocking layer, organic light-emitting units, and fingerprint recognition units. Via holes and imaging apertures are formed in the light-blocking layer. The via holes include first via holes in communication with the imaging apertures and second via holes. Each of the first organic light-emitting units includes a first anode, and each of the second organic light-emitting units includes a second anode. The first anode and the second anode are electrically connected to the drive circuits through the first via holes or through the second via holes. In a first direction, a distance between an edge of the first anode facing close to the imaging aperture and a center of the first via hole is smaller than a distance between an edge of the second anode and a center of the second via hole.

Disclosed are a display panel, a driving method thereof and a display device. The display panel includes: a light-shielding layer including imaging apertures, a light-emitting element layer including first light-emitting elements and second light-emitting elements, a touch functional layer, and a fingerprint recognition module. The orthographic projection of the second light-emitting element on the light-shielding layer is closer to the corresponding imaging aperture than the orthographic projection of the first light-emitting element on the light-shielding layer. In a first detection stage, the first light-emitting elements emit light, the second light-emitting elements do not emit light, and the fingerprint recognition module generates a first fingerprint image. In a second detection stage, the second light-emitting elements emit light, and the fingerprint recognition module generates a second fingerprint image. The first fingerprint image and the second fingerprint image are combined into a fingerprint image.

Display panel, display device and driving method

Display panel and display device are provided. The display panel includes fingerprint recognition units, a substrate, drive circuits, and organic light-emitting units. A distance between two adjacent drive circuits in each drive circuit group is less than a distance between two adjacent drive circuits in two adjacent drive circuit groups along a first direction. The drive circuits from a first row to an i-th row is a first drive circuit, and the drive circuits from a j-th row to an M-th row is a second drive circuit. A first direction component, along the first direction, of each of vias that correspond to at least a portion of the first drive circuit pointing to a first corresponding electrically-connected anode, and a second direction component, along the first direction, of each of vias that correspond to at least a portion of the second drive circuit pointing to a second corresponding electrically-connected anode, are opposite components.

Drive circuit arrangement for display panel and display device

Provided are a display panel and a display device. The display panel includes a fingerprint identification module, a light-blocking layer, a light-emitting device layer and a touch function layer which are sequentially stacked, where the light-blocking layer includes a plurality of imaging apertures; and the touch function layer includes a plurality of first touch areas and a plurality of second touch areas. The plurality of first touch areas do not overlap with imaging aperture identification areas, and the plurality of second touch areas overlap with at least one of the imaging aperture identification areas. Reflectivity of the second touch area is smaller than reflectivity of the first touch area; or transmittance of the second touch area is greater than transmittance of the first touch area; or light transmission uniformity of the second touch area is greater than light transmission uniformity of the first touch area.

A display apparatus and a fingerprint identification method are provided. An exemplary display apparatus includes a display region including a fingerprint identification region; a plurality of fingerprint identification pixels disposed in the fingerprint identification region and configured to provide a fingerprint identification light; a fingerprint identification array including fingerprint sensing units disposed in the fingerprint identification region and configured to receive the fingerprint identification light after being reflected by a touching body; and a controller electrically connected to the fingerprint sensing units and configured to obtain a whole image of a to-be-identified fingerprint, determine position coordinates of characteristic points on the display apparatus according to the whole image, control a first number of the fingerprint identification pixels to emit light according to the position coordinates to obtain local images at characteristic points of the to-be-identified fingerprint, and identify the to-be-identified fingerprint according to the local images.

Display apparatus and fingerprint identification method

Provided are a display panel and a display device. The display panel includes a display assembly, the display assembly includes an array substrate and a plurality of pixel units disposed on the array substrate; a fingerprint recognition assembly disposed on one side of the array substrate facing away from the plurality of pixel units, the fingerprint recognition assembly includes a first substrate and at least one fingerprint recognition unit disposed on the first substrate; and the array substrate includes a plurality of transparent regions and a plurality of non-transparent regions, the array substrate further includes a plurality of metal wires, a ratio of a line width of a portion of at least one of the metal wires disposed in at least one respective transparent region to a line width of a portion of the at least of the metal wires disposed in a respective non-transparent region is less than 1.

Provided are a display panel and a display device. The display panel includes a display assembly, the display assembly includes an array substrate and a plurality of pixel units disposed on the array substrate; and a fingerprint recognition assembly, the fingerprint recognition assembly disposed on one side of the array substrate facing away from the plurality of pixel units, the fingerprint recognition assembly includes a first substrate and at least one fingerprint recognition unit disposed on the first substrate, the fingerprint recognition unit includes a photosensitive region. The array substrate includes a plurality of transparent regions and a plurality of non-transparent regions. Along a direction perpendicular to the array substrate, at least a portion of the plurality of transparent regions in the array substrate is covered by a photosensitive region of any one of the at least one fingerprint recognition units.

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Shanghai, China

Haochi Yu