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公开(公告)号：US20210358353A1
公开(公告)日：2021-11-18
申请号：US16626332
申请日：2019-11-22
Inventor： Wenfang LI , Dan CAO
IPC: G09G3/00
Abstract: An electrical level shifting chip and a display device are provided. The electrical level shifting chip includes an electrical level shifting module, an overcurrent protecting module, and a controlling module. The control module is configured to detect whether the electrical level shifting chip is in an electrostatic discharge test mode and to disable the overcurrent protecting module when the electrical level shifting chip is in the electrostatic discharge test mode. Avoid the overcurrent protecting module from being disturbed and causing malfunction during an electrostatic discharge test.
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公开(公告)号：US20210335205A1
公开(公告)日：2021-10-28
申请号：US16627379
申请日：2019-12-11
Inventor： Wenfang LI , Dan CAO , Xianming ZHANG
IPC: G09G3/20
Abstract: The present application provides a display panel driving system and a display device. The display panel driving system includes a memory, a timing control integrated circuit (IC), and a panel driving IC. The memory is configured to store driving data. The timing control IC is configured to download the driving data from the memory during a startup phase, and send the driving data to the panel driving IC. Therefore, multiple ICs can share a single memory, which reduces costs.
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公开(公告)号：US20240046849A1
公开(公告)日：2024-02-08
申请号：US17266662
申请日：2020-12-30
Inventor： Wenfang LI , Xianming ZHANG
CPC classification number: G09G3/2096 , G09G3/2007 , G09G3/36 , G09G2320/0673
Abstract: A data signal regulating circuit and a display device are disclosed. The data signal regulating circuit is applied to a display panel including a plurality of source driver groups, a feedback unit and an regulating unit. Any two adjacent ones of the source driver groups are provided with a data signal regulating circuit. The feedback unit is used to output a feedback signal to the regulating unit according to data signal difference between two adjacent source driver groups. The regulating unit is used to regulate the data signals output from the corresponding source driver groups according to the feedback signal.
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公开(公告)号：US20230206822A1
公开(公告)日：2023-06-29
申请号：US18176199
申请日：2023-02-28
Inventor： Yongfeng WU , Wenfang LI , Haoran LI
IPC: G09G3/20 , G09G3/32 , H03K3/012 , H03K17/687
CPC classification number: G09G3/2096 , G09G3/32 , H03K3/012 , H03K17/6872 , G09G2310/08
Abstract: A switch device includes: a switch circuit; a control signal input terminal configured to input a control signal to the switch circuit; a voltage input terminal configured to input an initial voltage to the switch circuit; and a voltage output terminal configured to output an output voltage to a light-emitting device. The switch circuit includes: a first input terminal and a second input terminal electrically connected to the control signal input terminal and the voltage input terminal, respectively; and a first output terminal electrically connected to the voltage output terminal.
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公开(公告)号：US20220406242A1
公开(公告)日：2022-12-22
申请号：US17255514
申请日：2020-12-18
Inventor： Wenfang LI
IPC: G09G3/32
Abstract: The present disclosure provides a display panel and a driving method thereof. The display panel includes a power supply module configured to provide a drive current for the drive module, a drive module configured to output a drive current to drive the light-emitting module to emit light, a current detection module configured to detect the drive current and output detection signals to the control module according to the detection result, and a control module configured to adjust the grayscale value of the pixels of the display panel according to the detection signals.
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Patent Agency Ranking
公开(公告)号：US20240046894A1
公开(公告)日：2024-02-08
申请号：US17594025
申请日：2021-07-23
Inventor： Wenfang LI
CPC classification number: G09G3/36 , H02M3/156 , H02M1/44 , G09G2330/06 , G09G2330/021
Abstract: The present application provides a logic circuit and a display panel. One end of a switching control module of the logic circuit is connected in series with a voltage adjusting control module, and another end of the switching control module is connected in series with a switch component of a voltage adjusting module. Also, the switching control module connected in series with the same switch component has at least two different operational currents for a corresponding switch component to have different switching speeds for alleviating the problem of excessive electromagnetic interference (EMI) occurred in a power management chip of existing LCD products.
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公开(公告)号：US20240046850A1
公开(公告)日：2024-02-08
申请号：US17600396
申请日：2021-07-26
Inventor： Wenfang LI
CPC classification number: G09G3/2096 , G09G3/2007 , G09G3/3611 , G09G2340/00 , G09G2320/0209 , G09G2330/021 , G09G2310/027 , G09G2320/103
Abstract: A driving system and a display panel are provided. The driving system includes a timing controller and a driving chip. The driving chip receives the video signal and processes the video signal to output a characteristic current or a regular current to the display panel. The driving chip outputs the characteristic current to the display panel when the driving chip receives the characteristic video signal and to output the regular current to the display panel when the driving chip receives the regular video signal, and the characteristic current is smaller than regular current. The driving system of the display panel according to the present disclosure could alleviate the capacitor coupling effect caused by the large voltage jump introduced by the huge gray value difference when the display panel in a frame transition and thus improve the horizontal crosstalk of the display panel.
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公开(公告)号：US20230122522A1
公开(公告)日：2023-04-20
申请号：US17255000
申请日：2020-12-18
Inventor： Wenfang LI
IPC: G09G3/34 , H01L25/075 , G09G3/32
Abstract: The present application proposes a display device and a driving method thereof. The display device includes a display panel and a driving control module. The display panel includes first data lines and second data lines. The driving control module controls each of the first data lines and each of the second data lines to output a first data signal and a second data signal. A high electric potential period of the first data signal is within a low electric potential period of the second data signal. A high electric potential period of the second data signal is within a low electric potential period of the first data signal.
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公开(公告)号：US20240257785A1
公开(公告)日：2024-08-01
申请号：US17600430
申请日：2021-07-16
Inventor： Wenfang LI
IPC: G09G5/10
CPC classification number: G09G5/10 , G09G2320/0223 , G09G2320/0233
Abstract: A display device and a driving method thereof are provided. Driving current intervals from small to large are input to a plurality of horizontal display areas from being close to a source driver to far away from the source driver to realize a driving ability from small to large for the plurality of horizontal display areas. This solves a problem of gradual decrease in brightness caused by gradually increasing capacitive resistance loads of the plurality of horizontal display areas from being close to the source driver to far away from the source driver, so as to reduce brightness difference between the plurality of horizontal display areas. Therefore, the brightness of each horizontal display area is basically the same, and a display panel is prevented from displaying unevenness.
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公开(公告)号：US20230361675A1
公开(公告)日：2023-11-09
申请号：US17414348
申请日：2021-05-13
Inventor： Wenfang LI
CPC classification number: H02M3/158 , G09G3/006 , G09G2330/12
Abstract: A voltage conversion circuit and a display device are provided. The voltage conversion circuit includes a voltage conversion module, a comparison module, and a control module. The voltage conversion module includes at least two voltage conversion units, and the voltage conversion unit converts the input voltage into a target voltage. The comparison module compares each of testing voltages with a reference voltage to generate a feedback signal. The control module receives the feedback signal and controls the voltage conversion unit to convert the input voltage to the target voltage based on the feedback signal.
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