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公开(公告)号：US20240304143A1
公开(公告)日：2024-09-12
申请号：US18119269
申请日：2023-03-08
Applicant: NOVATEK Microelectronics Corp.
Inventor： Yi-Jiang Hu
IPC: G09G3/3233
CPC classification number: G09G3/3233 , G09G2300/0819 , G09G2300/0842 , G09G2310/08 , G09G2320/0233
Abstract: A pixel circuit of a display panel includes a light emitting device, a first transistor, a second transistor, a third transistor, a fourth transistor, a fifth transistor, a sixth transistor and a first capacitor. The first transistor includes a drain terminal, a source terminal and a gate terminal. The second transistor is coupled to a data input terminal of the pixel circuit. The third transistor is coupled to the second transistor. The fourth transistor is coupled between the second transistor and the light emitting device. The fifth transistor is coupled between the drain terminal of the first transistor and the gate terminal of the first transistor. The sixth transistor is coupled between the second transistor and the drain terminal of the first transistor. The first capacitor is coupled between the third transistor and the gate terminal of the first transistor.
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公开(公告)号：US20240302912A1
公开(公告)日：2024-09-12
申请号：US18508245
申请日：2023-11-14
Applicant: NOVATEK Microelectronics Corp.
Inventor： Yu-Ying Tang , Chih-Chang Lai
IPC: G06F3/041 , G02F1/1333 , G02F1/1368 , G02F1/167 , G06F3/044 , H01L27/12
CPC classification number: G06F3/0412 , G02F1/13338 , G02F1/1368 , G02F1/167 , G06F3/0443 , H01L27/124
Abstract: A touch panel includes a first substrate, a second substrate, a display material layer and a cover layer. A plurality of thin-film transistors (TFTs) of a plurality of pixels are deployed on the first substrate, wherein the plurality of pixels have a plurality of source lines and a plurality of gate lines. A common electrode is deployed on a second substrate. The display material layer is deployed between the first substrate and the second substrate. The cover layer is capable of being contacted by a touch object. The first substrate is located between the cover layer and the second substrate. At least one line of the plurality of source lines and the plurality of gate lines forms at least one touch sensing electrode.
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公开(公告)号：US12087225B1
公开(公告)日：2024-09-10
申请号：US18119269
申请日：2023-03-08
Applicant: NOVATEK Microelectronics Corp.
Inventor： Yi-Jiang Hu
IPC: G09G3/3233
CPC classification number: G09G3/3233 , G09G2300/0819 , G09G2300/0842 , G09G2310/08 , G09G2320/0233
Abstract: A pixel circuit of a display panel includes a light emitting device, a first transistor, a second transistor, a third transistor, a fourth transistor, a fifth transistor, a sixth transistor and a first capacitor. The first transistor includes a drain terminal, a source terminal and a gate terminal. The second transistor is coupled to a data input terminal of the pixel circuit. The third transistor is coupled to the second transistor. The fourth transistor is coupled between the second transistor and the light emitting device. The fifth transistor is coupled between the drain terminal of the first transistor and the gate terminal of the first transistor. The sixth transistor is coupled between the second transistor and the drain terminal of the first transistor. The first capacitor is coupled between the third transistor and the gate terminal of the first transistor.
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公开(公告)号：US12087079B2
公开(公告)日：2024-09-10
申请号：US18510688
申请日：2023-11-16
Applicant: Novatek Microelectronics Corp.
Inventor： Cho-Hsuan Jhang , Chao-Yu Meng , Shih-Cheng Chen , Chih-Peng Hsia
CPC classification number: G06V40/1312 , G06V40/1306 , H04N23/57
Abstract: A display apparatus and an fingerprint sensing method thereof are provided. A display panel of the display apparatus has a pixel circuit array, an in-display touch sensor array, and an in-display fingerprint sensor array. A driving circuit drives the in-display fingerprint sensor array to read a fingerprint image. A current display frame period is divided into a plurality of unit periods, each of the unit periods includes at least one fingerprint sensing period and one or both of a display driving period and a touch sensing period. The driving circuit resets a current fingerprint sensor in the in-display fingerprint sensor array during a first fingerprint sensing period among these fingerprint sensing periods of the first display frame period. The driving circuit reads a sensing result of the current fingerprint sensor during a second fingerprint sensing period succeeding to the first fingerprint sensing period.
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公开(公告)号：US20240282231A1
公开(公告)日：2024-08-22
申请号：US18172291
申请日：2023-02-21
Applicant: Novatek Microelectronics Corp.
Inventor： Chieh-An Lin , Keko-Chun Liang , Jhih-Siou Cheng
CPC classification number: G09G3/20 , H02J7/345 , G09G2310/0202 , G09G2310/0248 , G09G2310/027 , G09G2310/0289 , G09G2310/0291 , G09G2330/021
Abstract: A display driver and a charge recycling method are provided. The display driver includes a charging and discharging circuit and a control circuit. A first terminal of the charging and discharging circuit is coupled to at least one of the scan lines, and a second terminal of the charging and discharging circuit is coupled to at least one of the data lines. The control circuit is coupled to a first control terminal and a second control terminal of the charging and discharging circuit. The charging and discharging circuit receives a first current generated by discharging the at least one of the scan lines to charge the capacitor based on a first control signal. The charging and discharging circuit discharges the capacitor to generate a second current for charging the at least one of the data lines based on a second control signal.
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Patent Agency Ranking
公开(公告)号：US20240276108A1
公开(公告)日：2024-08-15
申请号：US18167869
申请日：2023-02-12
Applicant: Novatek Microelectronics Corp.
Inventor： Jung-Chen Chung
IPC: H04N25/42 , H04N25/766 , H04N25/779 , H04N25/78
CPC classification number: H04N25/42 , H04N25/766 , H04N25/779 , H04N25/78
Abstract: An image sensing device for sensing an image sensing pixel array through a plurality of sensing lines is provided. The image sensing device includes a first switch, a second switch, a transistor, and a current source. A first terminal of the first switch is coupled to a first sensing line among the sensing lines. A first terminal of the second switch is coupled to a second sensing line among the sensing lines. A first terminal of the transistor is coupled to a second terminal of the first switch and a second terminal of the second switch. The current source is coupled to a second terminal of the transistor.
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公开(公告)号：US20240264681A1
公开(公告)日：2024-08-08
申请号：US18105884
申请日：2023-02-06
Applicant: NOVATEK Microelectronics Corp.
Inventor： Hsin-Hong Yang , Yen-Cheng Cheng
IPC: G06F3/0354 , G06F3/041
CPC classification number: G06F3/03545 , G06F3/0412
Abstract: A sensing circuit, which is to be coupled to a plurality of sensor pads, includes a plurality of front-end circuits and a plurality of switches. The plurality of switches include first to sixth switches. The first switch is coupled between a first sensor pad and a first front-end circuit. The second switch is coupled between the first sensor pad and the first front-end circuit. The third switch is coupled between a second sensor pad and the first front-end circuit. The fourth switch is coupled between the second sensor pad and a second front-end circuit. The fifth switch is coupled between a third sensor pad and the second front-end circuit. The sixth switch is coupled between the third sensor pad and the second front-end circuit. Wherein, the first sensor pad, the second sensor pad, and the third sensor pad are deployed along a first direction.
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公开(公告)号：US12051381B2
公开(公告)日：2024-07-30
申请号：US18167896
申请日：2023-02-13
Applicant: Novatek Microelectronics Corp.
Inventor： Yi-Yang Tsai , Hung-Ho Huang , Tzong-Honge Shieh , Chieh-An Lin , Po-Hsiang Fang , Jhih-Siou Cheng
IPC: G09G3/34
CPC classification number: G09G3/3406 , G09G2310/0237 , G09G2320/0261 , G09G2320/064 , G09G2330/021 , G09G2370/00
Abstract: The disclosure provides a control method of a display driver. The control method includes receiving address information and defining an IC address according to the address information. The IC address includes n bits representing k zones, and n and k are positive integers. The control method further includes receiving the IC address, a black frame data signal and a pulse-width modulation (PWM) signal, and turning on or off the plurality of LEDs in the corresponding zone according to toggle of bit in the black frame data signal. Each bit in the black frame data signal indicates that a plurality of LEDs in a zone among the k zones are turned on or off.
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公开(公告)号：US12015884B2
公开(公告)日：2024-06-18
申请号：US17179440
申请日：2021-02-19
Applicant: NOVATEK MICROELECTRONICS CORP.
Inventor： Hung-Ming Wang , Yuan-Po Cheng
Abstract: A device and method for blending image data and the alpha channel and reconstructing to obtain the image again after transmission. An encoder blends the alpha channel and the red-green-blue (RGB) image data through a layer blending method that is supported by the general application processor (AP). Transporter image data, such as a checkerboard pattern, is blended with 1-alpha channel data to obtain a transporter. The blended image data (RGB+alpha) is mixed with the transporter to obtain mixed image data. The mixed image data is then transmitted through the existing transmission interface. After receiving the mixed image data, reconstruction processing is performed by a decoder to obtain the original RGB image data and the alpha channel again.
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公开(公告)号：US12008729B2
公开(公告)日：2024-06-11
申请号：US17655601
申请日：2022-03-21
Applicant: NOVATEK MICROELECTRONICS CORP.
Inventor： Ya-Lun Li
IPC: G06T3/4007 , G06T5/50 , G06T7/246
CPC classification number: G06T3/4007 , G06T5/50 , G06T7/248 , G06T2207/20212
Abstract: In an on-screen display (OSD) image processing method for generating an interpolated frame with interpolated blocks, motion compensation is performed to generate motion compensation (MC) data according to a first motion vector referring to a previous frame and a second motion vector referring to a current frame. Zero-motion data are generated according to a zero-motion vector referring to the previous frame and the current frame. The MC data of a first weight and the zero-motion data of a second weight are blended to generate each interpolated block as a processed block. When the number of pixels having OSD data in the processed block is less than a first positive threshold and larger than a second positive threshold, the processed block is determined as an extended OSD block and the second weight of the extended OSD block is less than that of an OSD block.
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