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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:US20240096289A1
公开(公告)日:2024-03-21
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:US10832617B2
公开(公告)日:2020-11-10
申请号:US16830286
申请日:2020-03-26
Applicant: Novatek Microelectronics Corp.
Inventor: Jhih-Siou Cheng , Tzong-Honge Shieh , Ju-Lin Huang
IPC: G09G3/3258 , G06F3/041 , G06F3/044 , G09G3/3275 , G09G3/3208
Abstract: A driver of a display panel is provided. The driver includes a plurality of sensing channels configured to receive a plurality of sensing signals from the display panel via a plurality of sensing lines and output the sensing signals, the sensing channels are coupled to the sensing lines in an arrangement selected from one of a random arrangement and a normal arrangement. The driver further includes a signal convertor coupled to the sensing channels and configured to receive the sensing signals from the sensing channels in a sequence selected from one of a random sequence and a normal sequence.
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公开(公告)号:US20190156754A1
公开(公告)日:2019-05-23
申请号:US16120468
申请日:2018-09-04
Applicant: Novatek Microelectronics Corp.
Inventor: Jhih-Siou Cheng , Tzong-Honge Shieh , Chieh-An Lin , Ju-Lin Huang
IPC: G09G3/3258 , G06F3/041 , G06F3/044
Abstract: A driver of a display panel is provided. The driver includes a plurality of sensing channels and a signal convertor. The plurality of sensing channels are configured to receive a plurality of sensing signals from the display panel via a plurality of sensing lines and output the sensing signals. The signal convertor are coupled to the sensing channels and configured to receive the sensing signals from the sensing channels. The signal convertor receives the sensing signals from the sensing channels in different sequences during different sensing periods.
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公开(公告)号:US11074851B2
公开(公告)日:2021-07-27
申请号:US16937598
申请日:2020-07-24
Applicant: Novatek Microelectronics Corp.
Inventor: Po-Hsiang Fang , Tzong-Honge Shieh
IPC: G09G3/20
Abstract: A driving apparatus capable of driving a display panel is provided. The driving apparatus can include a multiplexer and an output circuit. The multiplexer may include at least one first input terminal configured to receive information data in a first mode, at least one second input terminal configured to receive display data in a second mode, and at least one output terminal coupled to at least one input terminal of the output circuit. The output circuit can be configured to convert digital data into an analog voltage and output the analog voltage via at least one output terminal of the output circuit. The output circuit can be configured to convert the information data in the first mode and convert the display data into at least one driving voltage for driving at least one data line of the display panel in the second mode. The information data cannot be used for driving the display panel to present an image.
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公开(公告)号:US10762846B2
公开(公告)日:2020-09-01
申请号:US16120468
申请日:2018-09-04
Applicant: Novatek Microelectronics Corp.
Inventor: Jhih-Siou Cheng , Tzong-Honge Shieh , Chieh-An Lin , Ju-Lin Huang
IPC: G09G3/3258 , G06F3/041 , G06F3/044 , G09G3/3275 , G09G3/3208
Abstract: A driver of a display panel is provided. The driver includes a plurality of sensing channels and a signal convertor. The plurality of sensing channels are configured to receive a plurality of sensing signals from the display panel via a plurality of sensing lines and output the sensing signals. The signal convertor is coupled to the sensing channels and configured to receive the sensing signals from the sensing channels. The signal convertor receives the sensing signals from the sensing channels in different sequences during different sensing periods.
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公开(公告)号:US10673397B2
公开(公告)日:2020-06-02
申请号:US15688899
申请日:2017-08-29
Applicant: NOVATEK Microelectronics Corp.
Inventor: Jhih-Siou Cheng , Tzong-Honge Shieh
Abstract: An operational amplifier includes an output node; an output stage, comprising a plurality of output current paths and a plurality of control nodes, wherein the plurality of control nodes are respectively coupled to the plurality of output current paths, and the plurality of output current paths are coupled to the output node and respectively coupled to a plurality of power supply sources providing different voltages; and a selecting unit, configured to couple an internal output node of the operational amplifier to one of the plurality of control nodes of the output stage.
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公开(公告)号:US20190051232A1
公开(公告)日:2019-02-14
申请号:US15917852
申请日:2018-03-12
Applicant: Novatek Microelectronics Corp.
Inventor: Po-Hsiang Fang , Tzong-Honge Shieh
IPC: G09G3/20
CPC classification number: G09G3/2096 , G09G2310/027 , G09G2310/0291 , G09G2310/0297 , G09G2310/08 , G09G2330/12 , G09G2350/00 , G09G2370/045
Abstract: A driving apparatus capable of driving a display panel and an operation method thereof are provided. The driving apparatus includes an output circuit, a receiver circuit and a multiplexer. The output circuit is configured to output a driving voltage for driving a data line of the display panel. The receiver circuit is configured to receive display data for driving the display panel to present an image. A first input terminal of the multiplexer is configured to receive information data, wherein the information data is not configured to drive the display panel to present an image. A second input terminal of the multiplexer is coupled to an output terminal of the receiver circuit. An output terminal of the multiplexer is coupled to an input terminal of the output circuit.
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公开(公告)号:US10777120B2
公开(公告)日:2020-09-15
申请号:US15917852
申请日:2018-03-12
Applicant: Novatek Microelectronics Corp.
Inventor: Po-Hsiang Fang , Tzong-Honge Shieh
IPC: G09G3/20
Abstract: A driving apparatus capable of driving a display panel and an operation method thereof are provided. The driving apparatus includes an output circuit, a receiver circuit and a multiplexer. The output circuit is configured to output a driving voltage for driving a data line of the display panel. The receiver circuit is configured to receive display data for driving the display panel to present an image. A first input terminal of the multiplexer is configured to receive information data, wherein the information data is not configured to drive the display panel to present an image. A second input terminal of the multiplexer is coupled to an output terminal of the receiver circuit. An output terminal of the multiplexer is coupled to an input terminal of the output circuit.
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公开(公告)号:US20190181103A1
公开(公告)日:2019-06-13
申请号:US15839813
申请日:2017-12-12
Applicant: Novatek Microelectronics Corp.
Inventor: Tzong-Honge Shieh , Po-Hsiang Fang
IPC: H01L23/58 , G11C17/16 , H01L23/525 , H01L21/66
Abstract: The disclosure provides a trimming method, a trimming circuitry, and a trimming system for an IC with memory usage reduction. The method is applicable to a system including a tester, a characteristic adjustable circuit, and a trimming circuitry having a characteristic outputting circuit, a data memory, and a trim memory. The method includes the following steps. Under each condition, output signals respectively corresponding to trim settings are received from the characteristic adjustable circuit by the characteristic outputting circuit to obtain output values of the condition, a statistical parameter associated with the output values of the condition is calculated by the tester. The statistical parameter of at least one of the conditions is written into the data memory by the tester. An optimal trim setting of the characteristic adjustable circuit is determined according to the statistical parameters under all the conditions and written into the trim memory by the tester.
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