公开(公告)号：US20130342109A1

公开(公告)日：2013-12-26

申请号：US13794811

申请日：2013-03-12

Applicant: NOVATEK MICROELECTRONICS CORP.

Inventor： Ju-Lin Huang ,  Yueh-Hsiu Liu

IPC: H05B37/02

CPC classification number: H05B37/02 ,  G09G3/20 ,  G09G2310/0291 ,  G09G2330/021 ,  G09G2330/045

Abstract: A driving circuit of flat display including a charging circuit path, a discharging circuit path, and a detecting circuit is provided. The charging circuit path has first and second impedance states, wherein an impedance value of the first impedance state is smaller than that of the second impedance state. The discharging circuit path has third and fourth impedance states, wherein an impedance value of the third impedance state is smaller than that of the fourth impedance state. The detecting circuit detects whether the charging circuit path or the discharging circuit path is in an unstable first state or stable second state, controls the charging circuit path to the first impedance state or the discharging circuit path to the third impedance state in the first state, and controls the charging circuit path to the second impedance state or the discharging circuit path to the fourth impedance state in the second state.

Abstract translation: 提供了包括充电电路路径，放电电路路径和检测电路的平面显示器的驱动电路。 充电电路具有第一和第二阻抗状态，其中第一阻抗状态的阻抗值小于第二阻抗状态的阻抗值。 放电电路具有第三和第四阻抗状态，其中第三阻抗状态的阻抗值小于第四阻抗状态的阻抗值。 检测电路检测充电电路路径或放电电路路径是否处于不稳定的第一状态或稳定的第二状态，在第一状态下将充电电路路径控制为第一阻抗状态或放电电路路径至第三阻抗状态， 并且在第二状态下将充电电路路径控制到第二阻抗状态或放电电路路径到第四阻抗状态。

公开(公告)号：US20130241631A1

公开(公告)日：2013-09-19

申请号：US13717648

申请日：2012-12-17

Applicant: NOVATEK MICROELECTRONICS CORP.

Inventor： Ju-Lin Huang ,  Keko-Chun Liang ,  Chun-Yung Cho ,  Cheng-Hung Chen

IPC: G05F3/16

CPC classification number: G05F3/16 ,  G05F3/205

Abstract: An output stage circuit includes: a first transistor, including a first terminal coupled to a first node, a second terminal coupled to an output terminal, a third terminal coupled to an input terminal for receiving an input voltage, and a fourth terminal coupled to a first power terminal for receiving a first voltage; a second transistor, including a first terminal coupled to a second node, a second terminal coupled to the output terminal, a third terminal coupled to the input terminal for receiving the input voltage, and a fourth terminal coupled to ground; and a current source, coupled to the output terminal for providing a constant current.

Abstract translation: 输出级电路包括：第一晶体管，包括耦合到第一节点的第一端子，耦合到输出端子的第二端子，耦合到用于接收输入电压的输入端子的第三端子，以及耦合到第一端子的第四端子 用于接收第一电压的第一电源端子; 第二晶体管，包括耦合到第二节点的第一端子，耦合到输出端子的第二端子，耦合到输入端子用于接收输入电压的第三端子和耦合到地的第四端子; 以及耦合到输出端子以提供恒定电流的电流源。

公开(公告)号：US20230290715A1

公开(公告)日：2023-09-14

申请号：US17990727

申请日：2022-11-20

Applicant: NOVATEK Microelectronics Corp.

Inventor： Tsung-Ling Li ,  Yung-Cheng Lin ,  Ju-Lin Huang

IPC: H01L23/498 ,  G06F3/041 ,  G06F3/044

CPC classification number: H01L23/49838 ,  H01L23/49816 ,  G06F3/04164 ,  G06F3/0412 ,  G06F3/0446

Abstract: A ball grid array (BGA) package for use in a touch panel controller includes a package substrate and a plurality of solder bumps. The plurality of solder bumps are disposed on the package substrate, arranged in a staggered pattern surrounding a hollow region on the package substrate, and coupled to electrodes of a touch panel via a multi-layer circuit board. The staggered pattern includes Ys1 top rows and Ys2 bottom rows, a minimum vertical distance between centers of two vertically adjacent solder bumps in the Ys1 top rows and the Ys2 bottom rows being referred to as an equivalent vertical pitch, and Ys1, Ys2 being integers exceeding 2. the hollow region has a minimum length defined by the minimum length=((Ys1−2)+(Ys2−2))*the equivalent vertical pitch.

公开(公告)号：US11682343B2

公开(公告)日：2023-06-20

申请号：US17726558

申请日：2022-04-22

Applicant: Novatek Microelectronics Corp.

Inventor： Jhih-Siou Cheng ,  Chun-Fu Lin ,  Tung-Shuan Cheng ,  Po-Hsiang Fang ,  Ju-Lin Huang

IPC: G09G3/32

CPC classification number: G09G3/32 ,  G09G2310/08 ,  G09G2320/0247

Abstract: A display driver for driving a display device including a pixel array is provided. The display driver includes a plurality of driving channels. The driving channels is configured to output driving signals in a pulse width modulation manner to drive the pixel array to illuminate in a first frame period which is being divided into a plurality of subframe periods. A first driving channel of the plurality of driving channels outputs a first driving signal in a first subframe period combination. A second driving channel of the plurality of driving channels outputs a second driving signal in a second subframe period combination different than the first subframe period combination. Each of the first subframe period combination and the second subframe period combination comprises at least one subframe period of the first frame period.

公开(公告)号：US11430382B2

公开(公告)日：2022-08-30

申请号：US17409824

申请日：2021-08-24

Applicant: Novatek Microelectronics Corp.

Inventor： Che-Wei Yeh ,  Keko-Chun Liang ,  Yu-Hsiang Wang ,  Po-Hsiang Fang ,  Ju-Lin Huang

IPC: G09G3/32

Abstract: A LED driving apparatus with differential signal interfaces is introduced, including: N-stages LED drivers, wherein the first stage LED driver receives a first data packet differential signal and a first clock differential signal and outputs a second data packet differential signal and a second clock differential signal, the Mth stage LED driver receives a Mth data packet differential signal and a Mth clock differential signal and outputs a (M+1)th data packet differential signal and a (M+1)th clock differential signal.

公开(公告)号：US11244891B1

公开(公告)日：2022-02-08

申请号：US16934016

申请日：2020-07-21

Applicant: Novatek Microelectronics Corp.

Inventor： Jhih-Siou Cheng ,  Hong-Dyi Chang ,  Chun-Wei Kang ,  Chun-Fu Lin ,  Ju-Lin Huang

IPC: H01L23/498 ,  H01L23/00 ,  H01L25/18 ,  H01L25/16

Abstract: An integrated circuit package, a die carrier, and a die are provided. The die carrier includes at least one die pad and a plurality of leads. The at least one die pad is suitable for carrying the die. The leads surround the at least one die pad. The leads are disposed on four sides of the die carrier. A length of a long side among the four sides is twice or more a length of a short side among the four sides. The die carrier is suitable for a QFN package or a QFP package.

公开(公告)号：US11170702B2

公开(公告)日：2021-11-09

申请号：US17004025

申请日：2020-08-27

Applicant: Novatek Microelectronics Corp.

Inventor： Che-Wei Yeh ,  Keko-Chun Liang ,  Yu-Hsiang Wang ,  Po-Hsiang Fang ,  Ju-Lin Huang

IPC: G09G3/32

Abstract: A LED driving apparatus with differential signal interfaces is introduced, including: N-stages LED drivers, wherein the first stage LED driver receives a first data packet differential signal and a first clock differential signal and outputs a second data packet differential signal and a second clock differential signal, the Mth stage LED driver receives a Mth data packet differential signal and a Mth clock differential signal and outputs a (M+1)th data packet differential signal and a (M+1)th clock differential signal.

公开(公告)号：US20210304661A1

公开(公告)日：2021-09-30

申请号：US16919069

申请日：2020-07-01

Applicant: Novatek Microelectronics Corp.

Inventor： Chun-Wei Kang ,  Jhih-Siou Cheng ,  Chun-Fu Lin ,  Po-Hsiang Fang ,  Ju-Lin Huang

IPC: G09G3/32

Abstract: A driver circuit configured to receive a display data and drive a display panel is provided. The display panel includes a plurality of light-emitting diode devices according to the display data. The driver circuit includes a data driver. The data driver is configured to output driving signals to drive the light-emitting diode devices according to the display data and operate in different operation modes according to a control signal. The data driver includes a plurality of output channels. The output channels output the driving signals to drive the light-emitting diode devices via respective output terminals of the driver circuit. An assignment relationship of the display data and the output channels is different in the different operation modes. A display apparatus including the driver circuit is also provided.

公开(公告)号：US20210150976A1

公开(公告)日：2021-05-20

申请号：US16953364

申请日：2020-11-20

Applicant: NOVATEK Microelectronics Corp.

Inventor： Hsu-Chih Wei ,  Po-Hsiang Fang ,  Keko-Chun Liang ,  Che-Wei Yeh ,  Ju-Lin Huang

IPC: G09G3/32

Abstract: The present disclosure provides a method for a display driver system and a display driver system. The method comprises: the control circuit transmitting a global signal and a first signal for a LED driver circuit in each stage to a first-stage LED driver circuit, wherein the global signal includes an command for indicating an operation mode of the LED driver circuit in each stage; the LED driver circuit in each stage determining the operation mode corresponding to the command according to the global signal, identifying a corresponding first signal of the LED driver circuit in the stage, and operating according to the determined operation mode and the corresponding first signal; and the LED driver circuit in each stage except for last stage transmitting the global signal to the LED driver circuit in its next stage, and in response to a completion of operation according to the determined operation mode and the corresponding first signal, transmitting the first signal for the LED driver circuit in each of sequential stages to the LED driver circuit in its next stage.

公开(公告)号：US20200350868A1

公开(公告)日：2020-11-05

申请号：US16929124

申请日：2020-07-15

Applicant: Novatek Microelectronics Corp.

Inventor： Chia-Wei Su ,  Ju-Lin Huang ,  Keko-Chun Liang

IPC: H03F1/08 ,  H03F1/52 ,  H03F3/30 ,  H03F3/45

Abstract: An amplifier circuit including an input amplifier, an output amplifier and a diode device is provided. The output amplifier includes a PMOSFET and an NMOSFET. The PMOSFET has a gate electrode serving as a first input end and a drain coupled to an output end. The NMOSFET has a gate electrode serving as a second input end and a drain coupled to the output end. The output amplifier outputs an output voltage at the output end, and is coupled to the input amplifier via at least one of the first and second input ends. The diode device is coupled between the output end and the at least one of the first and second input ends of the output amplifier. When a voltage difference between the output end and the at least one of the first and second input ends of the output amplifier is greater than a barrier voltage of the diode device, the diode device is turned on, and an overshoot of the output voltage is reduced.