公开(公告)号：US20200065544A1

公开(公告)日：2020-02-27

申请号：US16105977

申请日：2018-08-21

Applicant: NOVATEK Microelectronics Corp.

Inventor： Jung-Chen Chung ,  Chi-Ting Chen

IPC: G06K9/00

Abstract: A fingerprint sensing method and a fingerprint sensing device are provided. The fingerprint sensing method includes the following steps. A first supply voltage is provided to power a fingerprint sensing circuit of the fingerprint sensing circuit. When the fingerprint sensing circuit is powered by the first supply voltage, it is detected whether a finger touch occurs. In response to determining that the finger touch has occurred, a second supply voltage is provided to power the fingerprint sensing device. A fingerprint image sensing is performed to obtain a fingerprint image when the fingerprint sensing circuit is powered by the second supply voltage.

公开(公告)号：US10558094B2

公开(公告)日：2020-02-11

申请号：US16104950

申请日：2018-08-19

Applicant: NOVATEK Microelectronics Corp.

Inventor： Shang-Yu Su ,  Hsueh-Yen Yang ,  Feng-Ting Pai

IPC: G02F1/1343 ,  G09G3/36 ,  G02F1/1335

Abstract: A display device includes a plurality of sub-pixel groups, wherein each of the plurality sub-pixel groups comprises eight sub-pixels disposed in a row direction or in a column direction and the eight sub-pixels comprise two red sub-pixels; two blue sub-pixels; two green sub-pixels; and two sub-pixels of a predetermined color, wherein in each of the plurality of sub-pixel groups, a distance between the red sub-pixels or between the blue sub-pixels is less than a distance between the green sub-pixels or between the sub-pixels of the predetermined color, and the sub-pixels of the predetermined color have a luminance higher than a luminance of the red sub-pixels and the blue sub-pixels.

公开(公告)号：US20200035160A1

公开(公告)日：2020-01-30

申请号：US16045757

申请日：2018-07-26

Applicant: Novatek Microelectronics Corp.

Inventor： Ko-Fang Chen ,  Huang-Chin Tang

IPC: G09G3/3258

Abstract: A power management device including a power management circuit is provided. The power management circuit is configured to output a first power signal and a second power signal to a pixel circuit of a display panel. The pixel circuit includes an organic light-emitting diode. The organic light-emitting diode includes an anode terminal and a cathode terminal. The anode terminal is coupled to the first power signal. The cathode terminal is coupled to the second power signal. The second power signal is an alternating-current voltage. In addition, a pixel circuit of a display panel, and a power management method for the pixel circuit of the display panel are also provided.

公开(公告)号：US20190387239A1

公开(公告)日：2019-12-19

申请号：US16012748

申请日：2018-06-19

Applicant: Novatek Microelectronics Corp.

Inventor： Yu-Min Wang

IPC: H04N19/426 ,  H04N19/117 ,  H04N19/52 ,  H04N19/124 ,  H04N19/61 ,  H04N19/91

Abstract: A video encoding apparatus and an operating method thereof are provided. The video encoding apparatus includes an encoding circuit, a reconstructed frame generating circuit, a deblocking filter and a determination circuit. The encoding circuit generates encoded data according to a residual frame and generates a reconstructed residual frame. The reconstructed frame generating circuit generates a first reconstructed frame according to the reconstructed residual frame and a predicted frame. The deblocking filter generates a second reconstructed frame by eliminating discontinuities in reconstructed blocks of the first reconstructed frame. The current reconstructed block is not output to the memory when a current reconstructed block is identical to a co-located reference block of a reference frame stored in the memory. The current reconstructed block is output to the memory when the current reconstructed block is different from the co-located reference block in the reference frame.

公开(公告)号：US10482820B2

公开(公告)日：2019-11-19

申请号：US15187809

申请日：2016-06-21

Applicant: NOVATEK Microelectronics Corp.

Inventor： Chun-Chieh Lin ,  Hua-Gang Chang ,  Hsueh-Yen Yang ,  Shang-Yu Su ,  Feng-Ting Pai

IPC: G09G3/3258

Abstract: A method of compensating luminance of an organic light-emitting diode (OLED) operated with a transistor in a pixel cell of a display panel includes measuring a first parameter of the transistor and a parameter of the OLED, and generating a lookup table accordingly; converting original display data to target display data according to the lookup table; outputting the target display data to the pixel cell; and compensating a second parameter of the transistor when the target display data is received by the pixel cell.

公开(公告)号：US10474293B2

公开(公告)日：2019-11-12

申请号：US15726404

申请日：2017-10-06

Applicant: NOVATEK Microelectronics Corp.

Inventor： Hung-Cheng Kuo ,  Yung-Fu Lin ,  Chun-Hung Chen ,  Ting-Hsuan Hung

IPC: G06F3/041 ,  G06F3/044

Abstract: A signal processing method for a touch panel includes transmitting a first driving signal to a first touch channel of the touch panel; and transmitting a second driving signal to a second touch channel of the touch panel, wherein the second touch channel is neighboring to the first touch channel. The first driving signal is substantially identical to the second driving signal during a first period, and the first driving signal is substantially inverse to the second driving signal during a second period neighboring to the first period.

公开(公告)号：US10473531B2

公开(公告)日：2019-11-12

申请号：US15695021

申请日：2017-09-05

Applicant: NOVATEK Microelectronics Corp.

Inventor： Ying-Chieh Yen ,  Min-Hung Hu ,  Yuan-Te Chen ,  Cun-Kai Zhao ,  Chien-Chuan Huang

IPC: G01K11/00 ,  G01K7/16 ,  G02F1/1333 ,  H02H5/04

Abstract: A temperature sensor includes a plurality of temperature coefficient voltage generators, one or more converters and at least one variable voltage or current source. The temperature coefficient voltage generators are used for generating multiple temperature coefficient voltages. The converters, coupled to the temperature coefficient voltage generators, are used for converting the temperature coefficient voltages to digital values. The at least one variable voltage or current source, each coupled to at least one of the temperature coefficient voltage generators, includes a first variable voltage or current source for outputting a first voltage or current in a first time period, and outputting a second voltage or current in a second time period, wherein the second voltage or current is different from the first voltage or current such that there exists a shift between a first voltage-temperature curve in the first time period and a second voltage-temperature curve in the second time period.

公开(公告)号：US20190340993A1

公开(公告)日：2019-11-07

申请号：US16402212

申请日：2019-05-02

Applicant: NOVATEK Microelectronics Corp.

Inventor： Sheng-Wen Lai ,  Te-Hsien Kuo ,  Han-Kun Wu ,  Chin-Hung Hsu

IPC: G09G3/36

Abstract: A method for reducing operating temperature of a source driving circuit and a display system are provided. The method for reducing operating temperature of a source driving circuit includes enabling an over-temperature protection operation by the source driving circuit; and transmitting, by the source driving circuit, a first signal to a timing controller in response to detecting a temperature increasing to be higher than the first threshold temperature, wherein the timing controller is configured to operate a temperature reducing operation in response to receiving the first signal.

公开(公告)号：US10461742B2

公开(公告)日：2019-10-29

申请号：US15255138

申请日：2016-09-01

Applicant: Novatek Microelectronics Corp.

Inventor： Chun-Hung Chen

IPC: H03K5/08 ,  H03F3/45 ,  H02M3/04 ,  G11C11/4074 ,  H03K17/16 ,  H03K17/687 ,  H02M3/07 ,  H03K17/12

Abstract: The invention is directed to the selectable mode buffer circuit including a plurality of pads, a mode selecting circuit, and a control circuit. The mode selecting circuit has a plurality of switches, coupled to the pads, and performs a charge pumping operation or an interfacing operating by changing on or off status of at least one of the switches according to a mode selecting signal. The control circuit receives the mode selecting signal, and generates a plurality of input signals for controlling the switches according to the mode selecting signal.

公开(公告)号：US10459566B2

公开(公告)日：2019-10-29

申请号：US15605999

申请日：2017-05-26

Applicant: NOVATEK MICROELECTRONICS CORP.

Inventor： Yu-Ying Tang ,  Chih-Chang Lai

IPC: G06F3/041 ,  G06F3/044

Abstract: A touch display panel includes a first patterned metal layer and a second patterned metal layer. The first patterned metal layer includes a first signal line and one or more first segments. The second patterned metal layer is disposed above the first patterned metal layer and includes a second signal line and one or more second segments, wherein the one or more second segments are electrically connected to the one or more first segments such that the one or more first segments and the one or more second segments collectively form at least a part of a touch sensing line.