公开(公告)号：US20140092033A1

公开(公告)日：2014-04-03

申请号：US13747486

申请日：2013-01-23

Applicant: NOVATEK MICROELECTRONICS CORP.

Inventor： Hui-Hung Chang ,  Chun-Hung Chen

IPC: G06F3/041

CPC classification number: G06F3/041 ,  G06F3/0418 ,  G06F3/044

Abstract: A touch detection method for a touch panel. The touch panel has a plurality of sensing nodes. Each sensing node has a baseline value. Each sensing node is sensed to obtain a scanned value. A touch event is detected according to a comparison with a finger-on threshold. When there is no touch event, the method detects whether or not an abnormal object has entered the sensing node. When entered, the method judges whether a difference count between the scanned value and baseline value is larger than a calibration level. When the difference count is larger, then the scanned value is used to update the baseline value. When no abnormal object, then the method judges whether the difference count is larger than a noise threshold. When the difference count is larger, then the scanned value is used to update the baseline value. The calibration level is smaller than finger-on threshold.

Abstract translation: 触摸面板的触摸检测方法。 触摸面板具有多个感测节点。 每个感测节点具有基线值。 感测每个感测节点以获得扫描值。 根据与手指阈值的比较来检测触摸事件。 当没有触摸事件时，该方法检测异常对象是否已进入感测节点。 当输入时，该方法判断扫描值和基线值之间的差异计数是否大于校准水平。 当差值计数较大时，则使用扫描值更新基线值。 当没有异常对象时，该方法判断差值是否大于噪声阈值。 当差值计数较大时，则使用扫描值更新基线值。 校准水平小于手指阈值。

公开(公告)号：US12147254B2

公开(公告)日：2024-11-19

申请号：US17829282

申请日：2022-05-31

Applicant: NOVATEK Microelectronics Corp.

Inventor： Chun-Hung Chen

IPC: G05F1/46

Abstract: A voltage regulating circuit includes a low-dropout regulator, configured to provide a driving voltage to drive a loading circuit and receive a first detection voltage from a first feedback terminal; and a reference voltage generating circuit, coupled to the low-dropout regulator, configured to receive a second detection voltage from a second feedback terminal. A voltage difference between the first feedback terminal and the second feedback terminal is clamped according to the first detection voltage and the second detection voltage.

公开(公告)号：US20230420344A1

公开(公告)日：2023-12-28

申请号：US18215339

申请日：2023-06-28

Applicant: NOVATEK MICROELECTRONICS CORP.

Inventor： Hsueh-Yi Lee ,  Chun-Hung Chen ,  Chia-Hsin Tung ,  Wen-Pin Tsai

IPC: H01L23/498 ,  H01L25/065 ,  H01L23/00 ,  H01L23/31

CPC classification number: H01L23/49811 ,  H01L25/0657 ,  H01L24/16 ,  H01L24/08 ,  H01L24/32 ,  H01L24/48 ,  H01L23/3121 ,  H01L2224/48227 ,  H01L2224/32146 ,  H01L2224/16141 ,  H01L2224/08165 ,  H01L2225/06541 ,  H01L2225/06513 ,  H01L2225/0651 ,  H01L2924/1437 ,  H01L2924/1426

Abstract: A semiconductor apparatus is provided. The semiconductor apparatus includes: a first circuit, including a first semiconductor substrate, a first group of circuit components formed on the first semiconductor substrate, and a first group of metal layers, wherein, the first group of circuit components are distributed to at least one circuit block, and traces for each circuit block are formed in at least some of the first group of metal layers; a second circuit, including a second semiconductor substrate, a second group of circuit components formed on the second semiconductor substrate, and a second group of metal layers, wherein, the second group of circuit components are distributed to at least one circuit block, and traces for each circuit block are formed in at least some of the second group of metal layers, and the first circuit and the second circuit being face-to-face stacked and bonded.

公开(公告)号：US20230384809A1

公开(公告)日：2023-11-30

申请号：US17829282

申请日：2022-05-31

Applicant: NOVATEK Microelectronics Corp.

Inventor： Chun-Hung Chen

IPC: G05F1/46

CPC classification number: G05F1/462 ,  G05F1/468

Abstract: A voltage regulating circuit includes a low-dropout regulator, configured to provide a driving voltage to drive a loading circuit and receive a first detection voltage from a first feedback terminal; and a reference voltage generating circuit, coupled to the low-dropout regulator, configured to receive a second detection voltage from a second feedback terminal. A voltage difference between the first feedback terminal and the second feedback terminal is clamped according to the first detection voltage and the second detection voltage.

公开(公告)号：US11531428B2

公开(公告)日：2022-12-20

申请号：US17731785

申请日：2022-04-28

Applicant: NOVATEK MICROELECTRONICS CORP.

Inventor： Chun-Hung Chen ,  Kai-Wen Shao ,  Feng-Lin Chan ,  Shuo-Wen Jang

IPC: G06F3/041 ,  G09G3/3233 ,  G06F3/044 ,  G09G3/3208

Abstract: The disclosure provides a method for driving an OLED touch-and-display device, a driving circuit, and an OLED touch-and-display device. The method includes: generating gate driving signals that are sequentially shifted based on the first clock signal (GCK); sequentially applying the gate driving signals that are sequentially shifted to the plurality of GLs; writing display data in a display driving period for each row of pixels, to the row of pixels, wherein a time length of the display driving period depends on a corresponding gate driving signal and is smaller than the clock cycle; and for a display driving period for each of at least one row of pixels, setting a touch detection period corresponding to the display driving period or corresponding to the display driving period for previous row of pixels at least partially overlapping with the display driving period in time.

公开(公告)号：US11302267B2

公开(公告)日：2022-04-12

申请号：US17123129

申请日：2020-12-16

Applicant: Novatek Microelectronics Corp.

Inventor： Chun-Hung Chen ,  Chia-Hsin Tung ,  Hsin-Hung Ou ,  Hung-Yi Lin

IPC: G09G3/3291 ,  G09G3/3258

Abstract: A driving device and an operation method thereof are provided. The driver device includes a source driver circuit, an output switching circuit, and an equalization control circuit. Two input ends of the output switching circuit are coupled to two output ends of the source driver circuit. Two output ends of the output switching circuit are coupled to two data lines of an LED display panel. The equalization control circuit checks whether sub-pixel data of the two data lines meets a predetermined condition. A plurality of sub-pixels located on a current display line of the LED display panel are reset in a reset period. In a data scanning period after the reset period, the equalization control circuit determines whether to control the output switching circuit to perform an equalization operation on the two data lines according to the checking result.

公开(公告)号：US10747364B2

公开(公告)日：2020-08-18

申请号：US15663834

申请日：2017-07-31

Applicant: NOVATEK Microelectronics Corp.

Inventor： Hung-Cheng Kuo ,  Chun-Hung Chen ,  Chun-Ching Huang

IPC: G06F13/38 ,  G06F3/03 ,  G06F3/041

Abstract: A noise detection device includes a drive circuit, a sense circuit and a controller. The drive circuit drives a plurality of drive lines having a first polarity pattern and a second polarity pattern, wherein an operation of the first polarity pattern and the second polarity pattern substantially equals zero over a predetermined time period. The sense circuit senses a plurality of sense signals from at least one sense line during the predetermined time period. The controller derives a magnitude of a noise signal from the at least one sense line according to the sense signals.

公开(公告)号：US20200226982A1

公开(公告)日：2020-07-16

申请号：US16522661

申请日：2019-07-26

Applicant: NOVATEK Microelectronics Corp.

Inventor： Chia-Hsin Tung ,  Chun-Hung Chen

IPC: G09G3/3275

Abstract: A method of controlling a source driver includes the steps of: detecting a line of image data to be outputted by a plurality of channels of the source driver, to generate a detection result; generating a plurality of control signals according to the detection result, each of the plurality of control signals corresponding to a channel among the plurality of channels; and enabling or disabling an operational amplifier in each of the plurality of channels via one of the plurality of control signals corresponding to the channel.

公开(公告)号：US10606409B2

公开(公告)日：2020-03-31

申请号：US16029665

申请日：2018-07-09

Applicant: NOVATEK Microelectronics Corp.

Inventor： Hung-Cheng Kuo ,  Chun-Hung Chen ,  Chun-Ching Huang

IPC: G06F13/12 ,  G06F13/38 ,  G06F3/041 ,  G06F1/3234

Abstract: A method for processing sensing signals in a sensing system includes receiving at least one sensing signal; performing a first operation on the at least one sensing signal to determine whether the at least one sensing signal satisfies a first predetermined condition; performing a second operation on the at least one sensing signal after a second predetermined condition is determined to be satisfied, wherein the second predetermined condition comprises a condition that the first predetermined condition is determined to be satisfied, wherein the second operation provides more sensing information than the first operation; and not performing the second operation on the at least one sensing signal after a third predetermined condition is determined to be satisfied, wherein the third predetermined condition comprises a condition that the first predetermined condition is determined to be unsatisfied.

公开(公告)号：US20190173457A1

公开(公告)日：2019-06-06

申请号：US15828618

申请日：2017-12-01

Applicant: NOVATEK MICROELECTRONICS CORP.

Inventor： Chien-Chuan Huang ,  Chia-Hsin Tung ,  Chun-Hung Chen ,  Hao-Jan Yang ,  Chieh-Hsiang Chang

IPC: H03K5/00 ,  H03K5/135 ,  G09G3/20 ,  G09G5/18 ,  H03K5/131 ,  G09G5/00

CPC classification number: H03K5/00006 ,  G06F1/10 ,  G09G3/2096 ,  G09G5/005 ,  G09G5/18 ,  H03K5/131 ,  H03K5/135

Abstract: A display driving circuit, a calibration module, and an associated calibration method are provided. The display driving circuit includes an internal clock circuit and the calibration module. The internal clock circuit generates an internal clock signal. The calibration module includes a counting circuit and a trimming circuit. The counting circuit counts pulses of a reference clock signal to generate a detected reference-clock count and counts pulses of the internal clock signal to generate a detected internal-clock count. The trimming circuit generates a calibration signal to adjust frequency of the internal clock signal when a predefined condition is satisfied. The predefined condition is related to comparison between a first preset count and one of the detected reference-clock count and the detected internal-clock count.