公开(公告)号：US11632231B2

公开(公告)日：2023-04-18

申请号：US16809567

申请日：2020-03-05

Applicant: NOVATEK Microelectronics Corp.

Inventor： Wei Chiang ,  Hsi-Chia Chang ,  Chen-Yi Lee

IPC: H04L9/08 ,  H04L9/00 ,  G06F21/75 ,  G06F7/58 ,  G06F21/72

Abstract: A substitute box includes a target input terminal, an obfuscation input terminal, a first output terminal and a second output terminal. The target input terminal is configured to receive a target input data. The obfuscation input terminal is configured to receive an obfuscation input data unrelated to a plaintext. The first output terminal is configured to output a first output data. The second output terminal is configured to output a second output data associated with the first output data. The first output data and the second output data are generated according to both the target input data and the obfuscation input data.

公开(公告)号：US20230070145A1

公开(公告)日：2023-03-09

申请号：US17985895

申请日：2022-11-13

Applicant: Novatek Microelectronics Corp.

Inventor： Chi-Ting Chen

IPC: G06V40/13

Abstract: A readout integrated circuit configured to read out sensing signals from an optical sensing panel is provided. The optical sensing panel includes a sensor array for fingerprint sensing. The readout integrated circuit includes a plurality of input terminals and a first discharging circuit. The plurality of input terminals are coupled to a plurality of output terminals of the optical sensing panel. The first discharging circuit is coupled to one of the plurality of input terminals. The first discharging circuit serves to discharge an output terminal included in the plurality of output terminals of the optical sensing panel by a first current during a readout period. The readout integrated circuit reads out a voltage of the output terminal as a sensing signal. The first discharging circuit includes a first switch element controlled by a control signal and a first current source which generates the first current.

公开(公告)号：US11600227B2

公开(公告)日：2023-03-07

申请号：US17542472

申请日：2021-12-05

Applicant: Novatek Microelectronics Corp.

Inventor： Wen-Pin Tsai

IPC: G09G3/3233 ,  G09G3/20

Abstract: A driving circuit that includes a plurality of sub-driving circuits and a plurality of first switching circuits is introduced. The sub-driving circuits is configured to supply a plurality of driving currents to drive a first group of light sources to emit light to form a first pixel on a display medium. The first switching circuits are respectively coupled to the sub-driving circuits and are configured to control the plurality of sub-driving circuits to supply the driving currents to the first group of light sources according to the pixel data, wherein a current value of each of the plurality of driving currents is corresponding to a bit order of a respective bit of the pixel data.

公开(公告)号：US11581261B2

公开(公告)日：2023-02-14

申请号：US17186005

申请日：2021-02-26

Applicant: Novatek Microelectronics Corp.

Inventor： Chun-Yu Liao ,  Teng-Jui Yu ,  Jr-Ching Lin ,  Wen-Ching Huang ,  Tai-Hung Lin

IPC: H01L23/52 ,  H01L23/538 ,  H01L23/00 ,  H01L23/31 ,  H01L23/367

Abstract: A chip on film package is disclosed, including a flexible film and a chip. The flexible film includes a film base, a patterned metal layer includes a plurality of pads and disposed on an upper surface of the film base, and a dummy metal layer covering a lower surface of the film base and capable of dissipating heat of the chip. The dummy metal layer comprises at least one opening exposing the second surface, and at least one of the plurality of pads is located within the at least one opening in a bottom view of the chip on film package. The chip is mounted on the plurality of pads of the patterned metal layer.

公开(公告)号：US11574967B2

公开(公告)日：2023-02-07

申请号：US17120260

申请日：2020-12-14

Applicant: Novatek Microelectronics Corp.

Inventor： Po-Sheng Liao ,  Chang-Hung Chen

IPC: G09G5/00 ,  H01L27/32 ,  H01L51/52

Abstract: An organic light-emitting display (OLED) panel, including an OLED layer, a touch sensing layer, and a shielding layer, is provided. The OLED layer is suitable for displaying an image. The touch sensing layer is suitable for sensing a touch event of the OLED panel. The shielding layer is disposed between the OLED layer and the touch sensing layer. The shielding layer is suitable for blocking a mutual interference between the OLED layer and the touch sensing layer.

公开(公告)号：US11569162B2

公开(公告)日：2023-01-31

申请号：US16988741

申请日：2020-08-10

Applicant: Novatek Microelectronics Corp.

Inventor： Chiao-Ling Huang ,  Tai-Hung Lin

IPC: H01L23/498 ,  H01L23/00 ,  H01L21/48 ,  H01L23/12

Abstract: A chip on film package includes a base film, a patterned circuit layer, a chip and a reinforcing sheet. The base film includes a first surface, a second surface opposite to the first surface and a mounting region located on the first surface. The patterned circuit layer is disposed on the first surface. The chip is mounted on the mounting region and electrically connected to the patterned circuit layer. The reinforcing sheet is disposed on the first surface and/or the second surface and exposes the chip, wherein a flexibility of the reinforcing sheet is substantially equal to or greater than a flexibility of the base film.

公开(公告)号：US20230016584A1

公开(公告)日：2023-01-19

申请号：US17811066

申请日：2022-07-06

Applicant: NOVATEK Microelectronics Corp.

Inventor： Yi-Hsien WANG ,  Yun-Hsiang YEH

IPC: G06F3/041 ,  G06F3/044

Abstract: A transmission system includes a first touch device and a second touch device. The first touch device and the second touch device work together to operate in a touch mode or in an application mode. When the first touch device and the second touch device work together to operate in the application mode, the first touch device acquires an absolute motion trajectory or an absolute rotation angle of the second touch device, and performs an application according to the absolute motion trajectory or the absolute rotation angle.

公开(公告)号：US11551469B2

公开(公告)日：2023-01-10

申请号：US17369182

申请日：2021-07-07

Applicant: NOVATEK MICROELECTRONICS CORP.

Inventor： Wu-Wei Lin

IPC: G06V40/13 ,  G06F3/041

Abstract: The present disclosure provides a fingerprint recognition driving method for a display panel, the display panel including a fingerprint recognition circuit, a fingerprint recognition driving circuit and a controller, the fingerprint recognition driving circuit being used to provide a fingerprint recognition driving signal to the fingerprint recognition circuit, the fingerprint recognition driving method including: periodically arranging, by the controller, time periods for display and touch in a case that the controller does not receive a fingerprint recognition start signal; periodically arranging, by the controller, time periods for display and touch and time periods for fingerprint recognition at intervals in a case that the controller receives the fingerprint recognition start signal; generating, by the controller, a first fingerprint recognition reset signal during at least one time period for display and touch, and the fingerprint recognition driving circuit being reset under the control of the first fingerprint recognition reset signal.

公开(公告)号：US20230004179A1

公开(公告)日：2023-01-05

申请号：US17363472

申请日：2021-06-30

Applicant: NOVATEK MICROELECTRONICS CORP.

Inventor： KUO WEI CHENG

IPC: G05F1/56 ,  H03K17/687 ,  H03K17/06 ,  G05F1/44 ,  H03K19/0944

Abstract: A driving device includes a voltage regulator, a voltage generator, and a first NMOSFET. The voltage regulator is coupled between a first high-voltage terminal and the output terminal of the driving device. The voltage regulator receives the first high voltage of the first high-voltage terminal. The voltage regulator steps down the first high voltage to generate a supply voltage. The voltage generator is coupled to a second high-voltage terminal and the output terminal of the driving device. The voltage generator provides a reference voltage for the output terminal of the driving device. The reference voltage is substantially lower than the supply voltage. The first NMOSFET is coupled between the output terminal of the driving device and a low-voltage terminal.

公开(公告)号：US20220404849A1

公开(公告)日：2022-12-22

申请号：US17349940

申请日：2021-06-17

Applicant: NOVATEK Microelectronics Corp.

Inventor： Hsiang-Yi Chiu

IPC: G05F1/56 ,  G05F1/59

Abstract: A voltage-to-current converter includes a first transistor having a drain coupled to a first node, a second transistor having a drain coupled to the first node, an operational amplifier having a first input terminal configured to receive a reference voltage and a second input terminal coupled to a source of the first transistor or a source of the second transistor, a control circuit having an input terminal coupled to an output terminal of the operational amplifier, a first output terminal coupled to a gate of the first transistor, and a second output terminal coupled to a gate of the second transistor, a first resistor coupled between the source of the first transistor and a ground, and a second resistor coupled between the source of the second transistor and the ground. An output current of the voltage-to-current converter is generated from the first node.