PIXEL SENSING CIRCUIT AND DRIVING METHOD THEREOF, IMAGE SENSOR AND ELECTRONIC DEVICE

    公开(公告)号:US20200162688A1

    公开(公告)日:2020-05-21

    申请号:US16515514

    申请日:2019-07-18

    Inventor: Zhiliang Wang

    Abstract: The embodiments of the present disclosure provide a pixel sensing circuit. The photoelectric conversion sub-circuit is configured to collect an incident light, and generate an electrical signal based on the incident light collected. The first resetting sub-circuit is configured to write a first power supply voltage to the signal collection point. The threshold compensation sub-circuit is configured to obtain a threshold voltage of the conversion transistor and a second controlling signal from the second controlling signal line, generate a compensation voltage according to the threshold voltage, and write the compensation voltage to the signal collection point. The conversion transistor is configured to output a current signal at the second electrode according to a voltage at the signal collection point. The selection sub-circuit is configured to output a current signal from the second electrode of the conversion transistor.

    Electronic circuit and driving method, display panel, and display apparatus

    公开(公告)号:US10181283B2

    公开(公告)日:2019-01-15

    申请号:US15571421

    申请日:2017-06-12

    Abstract: An electronic circuit for driving an electronic component is disclosed. The electronic circuit includes a drive subcircuit, a first subcircuit, a second subcircuit, a third subcircuit, a fourth subcircuit, and a fifth subcircuit. Under control of a data signal terminal, a scan signal terminal, a first control signal terminal, a second control signal terminal, a first power supply terminal, and a second power supply terminal, the drive subcircuit is configured to have a diode connection or a source-follow connection so as to maintain a substantially stable working current running through the electronic component. The electronic circuit can be a pixel circuit, and the electronic component can be a light-emitting component comprising an organic light-emitting diode (OLED). A display panel and a display apparatus containing the electronic circuit, as well as a method for driving the electronic circuit are also disclosed.

    Transparent display apparatus for improving contrast ratio and manufacturing method

    公开(公告)号:US12147112B2

    公开(公告)日:2024-11-19

    申请号:US17789932

    申请日:2021-07-06

    Abstract: A transparent display apparatus includes a liquid crystal cell and a Sight source opposite to a side surface of the ceil. The cell Includes a first substrate, first electrodes on the first substrate, a second substrate, a second electrode on the first or second substrata, a liquid crystal layer between the two substrates, signal lines on the first substrate, and a light-shielding pattern on the second substrate. The layer is configured to totally reflect or scatter light from the light source incident to a region, opposite to a first electrode, due to action of an electric field provided by the first and second electrodes. At least one signal line has a bottom surface and a light-reflecting side surface facing the light source, and a slope angle therebetween is acute. The pattern is located in a reflection path after a portion of the light irradiates the light-reflecting side surface.

    Pixel circuit, driving method thereof and display device

    公开(公告)号:US12057064B2

    公开(公告)日:2024-08-06

    申请号:US17352603

    申请日:2021-06-21

    CPC classification number: G09G3/3233 G09G3/32 G09G2300/0842

    Abstract: The present disclosure can provide a pixel circuit, a driving method thereof and a display device. By arranging a data write circuit, a driving control circuit, a light-emitting control circuit and a light-emitting device, the data write circuit provides a data signal of the data signal end for the driving control circuit in response to a signal of a first scanning signal end; the driving control circuit generates a driving current according to the data signal; and the light-emitting control circuit connects the driving control circuit with a cathode of the light-emitting device in response to a signal of a second scanning signal end, so that the driving current is input into the light-emitting device to control the light-emitting device to emit light. Besides, a voltage of the first power end is larger than that of the second power end.

    Photosensitive circuit, method of driving photosensitive circuit and display device

    公开(公告)号:US10665147B2

    公开(公告)日:2020-05-26

    申请号:US15953538

    申请日:2018-04-16

    Abstract: The present disclosure provides a photosensitive circuit, a method of driving a photosensitive circuit and a display device. The photosensitive circuit includes: a first photosensitive transistor, configured to be turned on in response to a signal of a first node, to transmit a current flowing through the first photosensitive transistor to a second node and generate an induced electrical signal based on an incident light; a second photosensitive transistor, configured to be turned on in response to a first scan signal, to transmit a voltage of the first scan signal to the first node and generate an induced electrical signal based on an incident light; and a first switch, configured to be turned on in response to the first scan signal, to transmit a signal of the second node to a reading terminal. Threshold voltages of both photosensitive transistors are negatively correlated with an intensity of the incident light.

    TRANSPARENT DISPLAY DEVICE, METHOD OF MANUFACTURING THE SAME AND BACKLIGHT MODULE

    公开(公告)号:US20220146880A1

    公开(公告)日:2022-05-12

    申请号:US17304518

    申请日:2021-06-22

    Abstract: A transparent display device and a backlight module are provided. The transparent display device includes: a scattered display panel including a display side; a first base substrate on a side of the scattered display panel facing away from the display side; a light source on a side of the first base substrate; and a dot-array structure between the scattered display panel and the first base substrate. The first base substrate includes a light incident surface and a light emitting surface. The dot-array structure includes a plurality of protrusions, and orthographic projections of the plurality of protrusions on the light emitting surface are distributed in an array. An orthographic projection of each protrusion on a first plane is in an inverted trapezoidal shape in a direction from the first base substrate to the scattered display panel.

    Optical detection circuit, optical detection method and optical detection device

    公开(公告)号:US10714650B2

    公开(公告)日:2020-07-14

    申请号:US16121588

    申请日:2018-09-04

    Inventor: Zhiliang Wang

    Abstract: An optical detection circuit, an optical detection method and an optical detection device are provided. The circuit includes a photosensitive transistor, a resetting unit, an energy storing unit, a detection control unit and a detection unit. A threshold voltage of the photosensitive transistor varies with an intensity of an optical signal received by the photosensitive transistor. A wavelength of the optical signal is within a preset wavelength range. The detection control unit is configured to control the first node to be connected to the detection unit under control of a detection control terminal. The detection unit is connected to the first node via the detection control unit and is configured to, when the detection control unit controls the first node to be connected to the detection unit, detect an electric signal from the first node and obtain the intensity of the optical signal based on the electric signal.

    OPTICAL DETECTION CIRCUIT, OPTICAL DETECTION METHOD AND OPTICAL DETECTION DEVICE

    公开(公告)号:US20190296177A1

    公开(公告)日:2019-09-26

    申请号:US16121588

    申请日:2018-09-04

    Inventor: Zhiliang Wang

    Abstract: An optical detection circuit, an optical detection method and an optical detection device are provided. The circuit includes a photosensitive transistor, a resetting unit, an energy storing unit, a detection control unit and a detection unit. A threshold voltage of the photosensitive transistor varies with an intensity of an optical signal received by the photosensitive transistor. A wavelength of the optical signal is within a preset wavelength range. The detection control unit is configured to control the first node to be connected to the detection unit under control of a detection control terminal. The detection unit is connected to the first node via the detection control unit and is configured to, when the detection control unit controls the first node to be connected to the detection unit, detect an electric signal from the first node and obtain the intensity of the optical signal based on the electric signal.

Patent Agency Ranking