公开(公告)号：US11955070B2

公开(公告)日：2024-04-09

申请号：US17533043

申请日：2021-11-22

Applicant: NOVATEK Microelectronics Corp.

Inventor： Kun-Zheng Lin ,  Chang-Hung Chen ,  Wei-Chieh Lin ,  Po-Sheng Liao

IPC: G09G3/3225 ,  G09G3/3266 ,  G09G3/3275

CPC classification number: G09G3/3225 ,  G09G2330/021

Abstract: A first driver circuit is configured to cooperate with a second driver circuit to control a display panel, wherein the first driver circuit is configured to output display data to a first area of the display panel and the second driver circuit is configured to output display data to a second area of the display panel. A method used for the first driver circuit includes outputting at least one emission control signal to control the second area of the display panel when the second driver circuit is disabled.

公开(公告)号：US20230251739A1

公开(公告)日：2023-08-10

申请号：US18112642

申请日：2023-02-22

Applicant: NOVATEK MICROELECTRONICS CORP.

Inventor： Hung-Hsiang Chen ,  Chang-Hung Chen ,  Huang-Chin Tang

IPC: G06F3/041 ,  G09G3/3225

CPC classification number: G06F3/04166 ,  G09G3/3225 ,  G09G2310/08

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: dividing each display frame into at least one display period and at least one touch detection period which are alternated; during each display period, generating sequentially-shifted gate driving signals and sequentially-shifted light-emission control signals, and sequentially applying the sequentially-shifted gate driving signals to at least a part of gate driving lines, and sequentially applying the sequentially-shifted light-emission control signals to at least a part of light-emission control lines; during each touch detection period, suspending generation of sequentially-shifted gate driving signals without suspending generation of sequentially-shifted light-emission control signals; and during a period when a gate driving signal for each row of pixels is of active level, maintaining a light-emission control signal for the row of pixels at inactive level.

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：US12105909B2

公开(公告)日：2024-10-01

申请号：US18112642

申请日：2023-02-22

Applicant: NOVATEK MICROELECTRONICS CORP.

Inventor： Hung-Hsiang Chen ,  Chang-Hung Chen ,  Huang-Chin Tang

IPC: G06F3/041 ,  G09G3/3225

CPC classification number: G06F3/04166 ,  G09G3/3225 ,  G09G2310/08

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: dividing each display frame into at least one display period and at least one touch detection period which are alternated; during each display period, generating sequentially-shifted gate driving signals and sequentially-shifted light-emission control signals, and sequentially applying the sequentially-shifted gate driving signals to at least a part of gate driving lines, and sequentially applying the sequentially-shifted light-emission control signals to at least a part of light-emission control lines; during each touch detection period, suspending generation of sequentially-shifted gate driving signals without suspending generation of sequentially-shifted light-emission control signals; and during a period when a gate driving signal for each row of pixels is of active level, maintaining a light-emission control signal for the row of pixels at inactive level.

公开(公告)号：US11609657B2

公开(公告)日：2023-03-21

申请号：US17313796

申请日：2021-05-06

Applicant: NOVATEK MICROELECTRONICS CORP.

Inventor： Hung-Hsiang Chen ,  Chang-Hung Chen ,  Huang-Chin Tang

IPC: G06F3/041 ,  G09G3/3225

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: dividing each display frame into at least one display period and at least one touch detection period which are alternated; during each display period, generating sequentially-shifted gate driving signals and sequentially-shifted light-emission control signals, and sequentially applying the sequentially-shifted gate driving signals to at least a part of gate driving lines, and sequentially applying the sequentially-shifted light-emission control signals to at least a part of light-emission control lines; during each touch detection period, suspending generation of sequentially-shifted gate driving signals without suspending generation of sequentially-shifted light-emission control signals; and during a period when a gate driving signal for each row of pixels is of active level, maintaining a light-emission control signal for the row of pixels at inactive level.

公开(公告)号：US20210367001A1

公开(公告)日：2021-11-25

申请号：US17327300

申请日：2021-05-21

Applicant: NOVATEK MICROELECTRONICS CORP.

Inventor： Chang-Hung Chen ,  Kun-Zheng Lin ,  Wei-Chieh Lin ,  Po-Sheng Liao ,  Yu-Huang Chen

IPC: H01L27/32 ,  G06F3/041 ,  G06F3/044

Abstract: An OLED touch and display driver integration chip is provided, including: at least one group of display driving pads for providing display driving signals to the OLED touch display panel; at least one group of touch pads for providing touch driving signals to touch electrodes on the OLED touch display panel, and alternately arranged in groups with the at least one group of display driving pads; at least one group of isolation pads, each group of isolation pads includes at least one isolation pad and is arranged between a group of display driving pads and a group of touch pads that are adjacent, an isolation pad is configured to apply a specific signal to isolate signal interference between adjacent groups of display driving pads and touch pads, or configured to apply a specific signal or be in a floating state, to reduce load of data lines or the touch electrodes.

公开(公告)号：US11074854B1

公开(公告)日：2021-07-27

申请号：US16812389

申请日：2020-03-09

Applicant: Novatek Microelectronics Corp.

Inventor： Yu-Tsung Lu ,  Chang-Hung Chen

IPC: G09G3/3208

Abstract: A driving device and an operation method thereof are provided. The driving device drives a plurality of light-emitting control lines of an organic light emitting diode (OLED) display panel. The light-emitting control lines are divided into a plurality of groups. The driving device includes a control circuit and a plurality of logic gates. The control circuit generates a global light-emitting control signal and determines a duty cycle of the global light-emitting control signal. Any one of the logic gates determines whether to transmit the global light-emitting control signal to the light-emitting control lines of a corresponding group among the groups. When the global light-emitting control signal is transmitted to a corresponding light-emitting control line among the light-emitting control lines, a pulse of the global light-emitting control signal may light up a plurality of pixels connected to the corresponding light-emitting control line.

公开(公告)号：US11696483B2

公开(公告)日：2023-07-04

申请号：US17857421

申请日：2022-07-05

Applicant: NOVATEK MICROELECTRONICS CORP.

Inventor： Chang-Hung Chen ,  Kun-Zheng Lin ,  Wei-Chieh Lin ,  Po-Sheng Liao ,  Yu-Huang Chen

IPC: H10K59/40 ,  G06F3/041

CPC classification number: H10K59/40 ,  G06F3/04164 ,  G06F3/04166

Abstract: An OLED touch and display driver integration chip is provided, including: a group of display driving pads for providing display driving signals to the OLED touch display panel; a group of touch pads for providing touch driving signals to touch electrodes on the OLED touch display panel and/or receiving touch sensing signals from the touch electrodes, and adjacently arranged with the group of display driving pads; and at least one isolation pad arranged between the group of display driving pads and the group of touch pads.

公开(公告)号：US20220366844A1

公开(公告)日：2022-11-17

申请号：US17533043

申请日：2021-11-22

Applicant: NOVATEK Microelectronics Corp.

Inventor： Kun-Zheng Lin ,  Chang-Hung Chen ,  Wei-Chieh Lin ,  Po-Sheng Liao

IPC: G09G3/3225

Abstract: A first driver circuit is configured to cooperate with a second driver circuit to control a display panel, wherein the first driver circuit is configured to output display data to a first area of the display panel and the second driver circuit is configured to output display data to a second area of the display panel. A method used for the first driver circuit includes outputting at least one emission control signal to control the second area of the display panel when the second driver circuit is disabled.

公开(公告)号：US20210349599A1

公开(公告)日：2021-11-11

申请号：US17313796

申请日：2021-05-06

Applicant: NOVATEK MICROELECTRONICS CORP.

Inventor： Hung-Hsiang Chen ,  Chang-Hung Chen ,  Huang-Chin Tang

IPC: G06F3/041 ,  G09G3/3225

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: dividing each display frame into at least one display period and at least one touch detection period which are alternated; during each display period, generating sequentially-shifted gate driving signals and sequentially-shifted light-emission control signals, and sequentially applying the sequentially-shifted gate driving signals to at least a part of gate driving lines, and sequentially applying the sequentially-shifted light-emission control signals to at least a part of light-emission control lines; during each touch detection period, suspending generation of sequentially-shifted gate driving signals without suspending generation of sequentially-shifted light-emission control signals; and during a period when a gate driving signal for each row of pixels is of active level, maintaining a light-emission control signal for the row of pixels at inactive level.