Patents by Inventor Qifeng Dai
Qifeng Dai has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 11482166Abstract: An OLED driving power source includes a power supply board connected to main board and OLED screen, power supply board includes standby circuit, power supply circuit, first conversion module, second conversion module and switch; after powering on, standby circuit supplies mainboard and power supply circuit, power supply circuit starts first conversion module to output first voltage and second voltage to power mainboard and output HVDC to second conversion module, switch converts first voltage to first enabling voltage to supply OLED screen according to first enabling signal from mainboard; power supply circuit starts second conversion module to convert HVDC into second enabling voltage to power and light up OLED screen, first conversion module comprises bridgeless PFC circuit and auxiliary path LLC control circuit integrated into same semiconductor chip encapsulation, and omitting specific standby circuit, circuit structure is simplified, area of power supply board is reduced, and production cost is reduced.Type: GrantFiled: November 2, 2018Date of Patent: October 25, 2022Assignee: SHENZHEN CHUANGWEI-RGB ELECTRONIC CO., LTDInventors: Shengping Cai, Zongwang Wei, Jianhua Zhou, Zhenyu Guo, Qifeng Dai
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Patent number: 11308871Abstract: An OLED drive power supply includes a power supply board connected to a main board and OLED screen, the power supply board includes a power supply circuit, first conversion module, second conversion module and switch; after powering on, the power supply circuit starts the first conversion module to output high-voltage DC to second conversion module, output first voltage and second voltage to power main board, switch converts first voltage to first enabling voltage to power OLED screen; after preset time, main board outputs second enabling signal to power supply circuit, to control second conversion module to start and output second enabling voltage to power and light OLED screen, first conversion module comprises bridgeless PFC circuit and auxiliary path LLC control circuit integrated into same semiconductor chip encapsulation, and omitting specific standby circuit, circuit structure is simplified, area of power supply board is reduced, and production cost is reduced.Type: GrantFiled: June 28, 2019Date of Patent: April 19, 2022Assignee: SHENZHEN SKYWORTH-RGB ELECTRONIC CO., LTDInventors: Shengping Cai, Zongwang Wei, Jianhua Zhou, Zhenyu Guo, Qifeng Dai
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Publication number: 20210217357Abstract: An OLED driving power source includes a power supply board connected to main board and OLED screen, power supply board includes standby circuit, power supply circuit, first conversion module, second conversion module and switch; after powering on, standby circuit supplies mainboard and power supply circuit, power supply circuit starts first conversion module to output first voltage and second voltage to power mainboard and output HVDC to second conversion module, switch converts first voltage to first enabling voltage to supply OLED screen according to first enabling signal from mainboard; power supply circuit starts second conversion module to convert HVDC into second enabling voltage to power and light up OLED screen, first conversion module comprises bridgeless PFC circuit and auxiliary path LLC control circuit integrated into same semiconductor chip encapsulation, and omitting specific standby circuit, circuit structure is simplified, area of power supply board is reduced, and production cost is reduced.Type: ApplicationFiled: November 2, 2018Publication date: July 15, 2021Applicant: SHENZHEN CHUANGWEI-RGB ELECTRONIC CO., LTDInventors: Shengping CAI, Zongwang WEI, Jianhua ZHOU, Zhenyu GUO, Qifeng DAI
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Publication number: 20210210008Abstract: An OLED drive power supply includes a power supply board connected to a main board and OLED screen, the power supply board includes a power supply circuit, first conversion module, second conversion module and switch; after powering on, the power supply circuit starts the first conversion module to output high-voltage DC to second conversion module, output first voltage and second voltage to power main board, switch converts first voltage to first enabling voltage to power OLED screen; after preset time, main board outputs second enabling signal to power supply circuit, to control second conversion module to start and output second enabling voltage to power and light OLED screen, first conversion module comprises bridgeless PFC circuit and auxiliary path LLC control circuit integrated into same semiconductor chip encapsulation, and omitting specific standby circuit, circuit structure is simplified, area of power supply board is reduced, and production cost is reduced.Type: ApplicationFiled: June 28, 2019Publication date: July 8, 2021Applicant: SHENZHEN SKYWORTH-RGB ELECTRONIC CO., LTDInventors: Shengping CAI, Zongwang WEI, Jianhua ZHOU, Zhenyu GUO, Qifeng DAI
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Patent number: 10694138Abstract: An organic light-emitting diode (OLED) drive power device and OLED television, OLED drive power device comprising power board connected to motherboard and OLED screen logic board, power board having power supply circuit, first conversion module, second conversion module, changeover switch and power factor correction (PFC) circuit thereon; after powered, power supply circuit starts PFC circuit to output high-voltage direct current (HVDC) according to on-off signal output by motherboard, first conversion module converts HVDC into first voltage and second voltage to power motherboard, and first voltage is converted to power OLED screen logic board; after preset time period, HVDC is converted to power OLED screen logic board to light OLED screen. Redesigning architecture of power board eliminates need for standby circuit and streamlines circuits, meets power output stability and timing requirements of OLED, reduces power board size, reduces power cost and benefits OLED popularization.Type: GrantFiled: January 13, 2017Date of Patent: June 23, 2020Assignee: SHENZHEN CHUANGWEI-RGB ELECTRONIC CO., LTD.Inventors: Shengping Cai, Qifeng Dai, Zongwang Wei, Jianhua Zhou
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Patent number: 10354570Abstract: A high-power power supply for use with display devices and an associated display device are provided. The high-power power supply includes an AC conversion module configured to rectify an external AC source into a DC output, a power factor correction circuit configured to perform power factor correction to the DC output and output a correction completion signal when the correction is completed, a power-on control circuit configured to control the power factor correction circuit to be turned on to perform the power factor correction to the DC current when receiving a power-on signal and to control multiple resonance control circuits to be turned on when receiving the correction completion signal, a plurality of resonance control circuits configured to, when turned on, control multiple transformers to operate normally, and multiple transformers configured to supply different operating voltages to the display device. The present disclosure has the advantage of low cost.Type: GrantFiled: April 24, 2017Date of Patent: July 16, 2019Inventors: Shengping Cai, Qifeng Dai, Zongwang Wei
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Publication number: 20190149761Abstract: An organic light-emitting diode (OLED) drive power device and OLED television, OLED drive power device comprising power board connected to motherboard and OLED screen logic board, power board having power supply circuit, first conversion module, second conversion module, changeover switch and power factor correction (PFC) circuit thereon; after powered, power supply circuit starts PFC circuit to output high-voltage direct current (HVDC) according to on-off signal output by motherboard, first conversion module converts HVDC into first voltage and second voltage to power motherboard, and first voltage is converted to power OLED screen logic board; after preset time period, HVDC is converted to power OLED screen logic board to light OLED screen. Redesigning architecture of power board eliminates need for standby circuit and streamlines circuits, meets power output stability and timing requirements of OLED, reduces power board size, reduces power cost and benefits OLED popularization.Type: ApplicationFiled: January 13, 2017Publication date: May 16, 2019Inventors: Shengping CAI, Qifeng DAI, Zongwang WEI, Jianhua ZHOU
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Publication number: 20170229051Abstract: A high-power power supply for use with display devices and an associated display device are provided. The high-power power supply includes an AC conversion module configured to rectify an external AC source into a DC output, a power factor correction circuit configured to perform power factor correction to the DC output and output a correction completion signal when the correction is completed, a power-on control circuit configured to control the power factor correction circuit to be turned on to perform the power factor correction to the DC current when receiving a power-on signal and to control multiple resonance control circuits to be turned on when receiving the correction completion signal, a plurality of resonance control circuits configured to, when turned on, control multiple transformers to operate normally, and multiple transformers configured to supply different operating voltages to the display device. The present disclosure has the advantage of low cost.Type: ApplicationFiled: April 24, 2017Publication date: August 10, 2017Inventors: SHENGPING CAI, QIFENG DAI, ZONGWANG WEI
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Patent number: 9603219Abstract: The present invention discloses a driving power supply apparatus for OLED. Wherein it comprises a power board connecting to a motherboard and a OLED screen, the motherboard comprises a standby circuit, a timing control module, a first and second transformer modules and a PFC circuit, the standby circuit connects to the timing control module and the motherboard, the timing control module connects to the PFC circuit, the motherboard and the first and second transformer modules, which connect to the motherboard and the PFC circuit. The isolation of two voltages, fulfills stability requirements of the power supplied to OLED, improves its picture quality; the timing control module will not light up the OLED screen until both switch and enable signals are stable simultaneously. This has changed the traditional power switch sequence, and made the power supply adapt to OLED's fast response characters.Type: GrantFiled: September 22, 2014Date of Patent: March 21, 2017Inventors: Qifeng Dai, Tieniu Chao, Shengping Cai, Hui Xu, Zongwang Wei
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Publication number: 20170006688Abstract: The present invention discloses a driving power supply apparatus for OLED. Wherein it comprises a power board connecting to a motherboard and a OLED screen, the motherboard comprises a standby circuit, a timing control module, a first and second transformer modules and a PFC circuit, the standby circuit connects to the timing control module and the motherboard, the timing control module connects to the PFC circuit, the motherboard and the first and second transformer modules, which connect to the motherboard and the PFC circuit. The isolation of two voltages, fulfills stability requirements of the power supplied to OLED, improves its picture quality; the timing control module will not light up the OLED screen until both switch and enable signals are stable simultaneously. This has changed the traditional power switch sequence, and made the power supply adapt to OLED's fast response characters.Type: ApplicationFiled: September 22, 2014Publication date: January 5, 2017Applicant: SHENZHEN SKYWORTH-RGB ELECTRONIC CO., LTDInventors: Qifeng Dai, Tieniu Chao, Shengping Cai, Hui Xu, Zongwang Wei
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Patent number: 9524310Abstract: Data processing includes accessing a product category tree, the product category tree comprising a plurality of hierarchical levels. A leaf category level of the plurality of hierarchical levels comprises a leaf category node. The leaf category node includes product information. The product information comprises a plurality of product attribute parameters. The plurality of product attribute parameters comprises standard product information. Data processing further includes selecting, among the plurality of product attribute parameters that correspond to the leaf category node, a representative product attribute parameter that is representative of the product information; and partitioning standard product information of the leaf category node to obtain a plurality of sets using the representative product attribute parameter, wherein each of the plurality of sets includes at least some of the standard product information.Type: GrantFiled: October 24, 2014Date of Patent: December 20, 2016Assignee: Alibaba Group Holding LimitedInventors: Haijie Gu, Ningjun Su, Qifeng Dai, Haiping Ma, Jinyin Zhang, Enhong Chen
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Publication number: 20150100585Abstract: Data processing includes accessing a product category tree, the product category tree comprising a plurality of hierarchical levels. A leaf category level of the plurality of hierarchical levels comprises a leaf category node. The leaf category node includes product information. The product information comprises a plurality of product attribute parameters. The plurality of product attribute parameters comprises standard product information. Data processing further includes selecting, among the plurality of product attribute parameters that correspond to the leaf category node, a representative product attribute parameter that is representative of the product information; and partitioning standard product information of the leaf category node to obtain a plurality of sets using the representative product attribute parameter, wherein each of the plurality of sets includes at least some of the standard product information.Type: ApplicationFiled: October 24, 2014Publication date: April 9, 2015Inventors: Haijie Gu, Ningjun Su, Qifeng Dai, Haiping Ma, Jinyin Zhang, Enhong Chen
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Patent number: 8903868Abstract: Data processing includes accessing a product category tree, the product category tree comprising a plurality of hierarchical levels. A leaf category level of the plurality of hierarchical levels comprises a leaf category node. The leaf category node includes product information. The product information comprises a plurality of product attribute parameters. The plurality of product attribute parameters comprises standard product information. Data processing further includes selecting, among the plurality of product attribute parameters that correspond to the leaf category node, a representative product attribute parameter that is representative of the product information; and partitioning standard product information of the leaf category node to obtain a plurality of sets using the representative product attribute parameter, wherein each of the plurality of sets includes at least some of the standard product information.Type: GrantFiled: November 27, 2013Date of Patent: December 2, 2014Assignee: Alibaba Group Holding LimitedInventors: Haijie Gu, Ningjun Su, Qifeng Dai, Haiping Ma, Jinyin Zhang, Enhong Chen
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Publication number: 20140143094Abstract: Data processing includes accessing a product category tree, the product category tree comprising a plurality of hierarchical levels. A leaf category level of the plurality of hierarchical levels comprises a leaf category node. The leaf category node includes product information. The product information comprises a plurality of product attribute parameters. The plurality of product attribute parameters comprises standard product information. Data processing further includes selecting, among the plurality of product attribute parameters that correspond to the leaf category node, a representative product attribute parameter that is representative of the product information; and partitioning standard product information of the leaf category node to obtain a plurality of sets using the representative product attribute parameter, wherein each of the plurality of sets includes at least some of the standard product information.Type: ApplicationFiled: November 27, 2013Publication date: May 22, 2014Applicant: Alibaba Group Holding LimitedInventors: Haijie Gu, Ningjun Su, Qifeng Dai, Haiping Ma, Jinyin Zhang, Enhong Chen
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Patent number: 8626798Abstract: Data processing includes accessing a product category tree, the product category tree comprising a plurality of hierarchical levels. A leaf category level of the plurality of hierarchical levels comprises a leaf category node. The leaf category node includes product information. The product information comprises a plurality of product attribute parameters. The plurality of product attribute parameters comprises standard product information. Data processing further includes selecting, among the plurality of product attribute parameters that correspond to the leaf category node, a representative product attribute parameter that is representative of the product information; and partitioning standard product information of the leaf category node to obtain a plurality of sets using the representative product attribute parameter, wherein each of the plurality of sets includes at least some of the standard product information.Type: GrantFiled: September 19, 2011Date of Patent: January 7, 2014Assignee: Alibaba Group Holding LimitedInventors: Haijie Gu, Ningjun Su, Qifeng Dai, Haiping Ma, Jinyin Zhang, Enhong Chen
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Publication number: 20120072462Abstract: Data processing includes accessing a product category tree, the product category tree comprising a plurality of hierarchical levels. A leaf category level of the plurality of hierarchical levels comprises a leaf category node. The leaf category node includes product information. The product information comprises a plurality of product attribute parameters. The plurality of product attribute parameters comprises standard product information. Data processing further includes selecting, among the plurality of product attribute parameters that correspond to the leaf category node, a representative product attribute parameter that is representative of the product information; and partitioning standard product information of the leaf category node to obtain a plurality of sets using the representative product attribute parameter, wherein each of the plurality of sets includes at least some of the standard product information.Type: ApplicationFiled: September 19, 2011Publication date: March 22, 2012Inventors: Haijie Gu, Ningjun Su, Qifeng Dai, Haiping Ma, Jinyin Zhang, Enhong Chen