Patents by Inventor Yongai Zhang
Yongai Zhang 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: 12268040Abstract: The invention relates to a ?LED light-emitting and display device with single-ended electrical contact and single-ended carrier injection, and a manufacturing method of the ?LED light-emitting and display device. The ?LED light-emitting and display device comprises more than one pixel unit, and each pixel unit sequentially comprises a lower pixel electrode, ?LED chips, an insulating layer, and an upper pixel electrode from bottom to top, wherein the ?LED chips directly contact with the lower pixel electrode, external carriers are injected into the ?LED chips through the lower pixel electrode, the insulating layer prevents the external carriers from being injected into the ?LED chips through the upper pixel electrode, and the ?LED chips are lit by an alternating electric field applied between the upper pixel electrode and the lower pixel electrode. The invention avoids the complicated bonding process, and is expected to improve the market competitiveness of the ?LED light-emitting and display device.Type: GrantFiled: August 31, 2020Date of Patent: April 1, 2025Assignees: FUZHOU UNIVERSITY, MINDU INNOVATION LABInventors: Tailiang Guo, .Ye Liu, Chaoxing Wu, Dianlun Li, Yongai Zhang, Xiongtu Zhou, Kun Wang
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Publication number: 20240297268Abstract: A light-emitting display device based on special-shaped nLED grains comprises an upper drive electrode substrate, an upper drive electrode, special-shaped nLED grains, a lower drive electrode and a lower drive electrode substrate that are sequentially arranged from top to bottom, and is further provided with an AC drive control module having two ends connected to the upper drive electrode and the lower electrode respectively. The special-shaped nLED grains are nLED grains each comprising a non-planar luminous layer. The drive electrode is isolated from the nLED grains by insulating dielectric layer. In presence of the AC drive signal, the nLED grains are lighted up through electromagnetic coupling.Type: ApplicationFiled: August 31, 2020Publication date: September 5, 2024Applicants: FUZHOU UNIVERSITY, MINDU INNOVATION LABInventors: Tailiangi GUO, Yalian SWENG, Xiongtu ZHOU, Yongai ZHANG, Chaoxing WU, Zhixian LIN, Qun YAN
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Publication number: 20240297154Abstract: The present invention relates to a full-color ?LED display device without electrical contact and mass transfer. The full-color ?LED display device without electrical contact and mass transfer comprises a lower driving electrode disposed on a surface of a lower transparent substrate, optical micro-structures disposed on an upper surface and a lower surface of an upper transparent substrate, an upper driving electrode, a barrier micro-structure connecting the upper transparent substrate and the lower transparent substrate, a ?LED crystal grain disposed in the barrier micro-structure, wavelength down-conversion light emitting layers, an insulating layer and a control module, wherein a unit R for displaying red light, a unit G for displaying green light and a unit B for displaying blue light are successively formed on the barrier micro-structure along a direction of the upper driving electrode.Type: ApplicationFiled: August 31, 2020Publication date: September 5, 2024Applicants: FUZHOU UNIVERSITY, MINDU INNOVATION LABInventors: Tailiang GUO, Penghui LIU, Yongai ZHANG, Xiongtu ZHOU, Chaoxing WU, Zhixian LIN, Lei SUN, Qun YAN
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Publication number: 20240297281Abstract: The invention relates to a ?LED light-emitting and display device with single-ended electrical contact and single-ended carrier injection, and a manufacturing method of the ?LED light-emitting and display device. The ?LED light-emitting and display device comprises more than one pixel unit, and each pixel unit sequentially comprises a lower pixel electrode, ?LED chips, an insulating layer, and an upper pixel electrode from bottom to top, wherein the ?LED chips directly contact with the lower pixel electrode, external carriers are injected into the ?LED chips through the lower pixel electrode, the insulating layer prevents the external carriers from being injected into the ?LED chips through the upper pixel electrode, and the ?LED chips are lit by an alternating electric field applied between the upper pixel electrode and the lower pixel electrode. The invention avoids the complicated bonding process, and is expected to improve the market competitiveness of the ?LED light-emitting and display device.Type: ApplicationFiled: August 31, 2020Publication date: September 5, 2024Applicants: FUZHOU UNIVERSITY, MINDU INNOVATION LABInventors: Tailiang GUO, .Ye LIU, Chaoxing WU, Dianlun LI, Yongai ZHANG, Xiongtu ZHOU, Kun WANG
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Publication number: 20240297272Abstract: A non-direct electrical contact orientation ordered nLED light-emitting display device comprises an upper drive electrode substrate, an upper drive electrode, an nLED grain sheet, a lower drive electrode and a lower drive electrode substrate that are sequentially arranged from top to bottom, and is further provided with an AC drive control module having two ends connected to the upper drive electrode and the lower drive electrode respectively. The nLED grain sheet is formed by a plurality of nLED grains that are arranged in order, so when the nLED grain sheet is disposed between the electrode substrates, a light-emitting layer of each nLED grain is parallel to the electrode substrates and perpendicular to the electric field. At least one of the upper drive electrode and the lower drive electrode is isolated from the nLED grains by an insulating dielectric layer. In presence of the AC drive signal, the nLED grains are lighted up through electromagnetic coupling.Type: ApplicationFiled: August 31, 2020Publication date: September 5, 2024Applicants: FUZHOU UNIVERSITY, MINDU INNOVATION LABInventors: Xiongtu ZHOU, Guixiong CHEN, Tailiangi GUO, Yongai ZHANG, Chaoxing WU, Zhixian LIN, Qun YAN
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Publication number: 20240097078Abstract: The present invention relates to a ?LED light-emitting and display device without electrical contact, external carrier injection and mass transfer and a preparation method thereof. The ?LED light-emitting and display device includes one or more light-emitting pixels, and each light-emitting pixel includes a pixel lower electrode, a lower insulation layer, a ?LED chip, an upper insulation layer and a pixel upper electrode from bottom to top, wherein the upper insulation layer and the lower insulation layer prevent the ?LED chip from being in direct electrical contact with the pixel lower electrode and the pixel upper electrode, and the ?LED chip is lit by an alternating electric field through electromagnetic coupling.Type: ApplicationFiled: August 31, 2020Publication date: March 21, 2024Applicants: FUZHOU UNIVERSITY, MINDU INNOVATION LABInventors: Tailiang GUO, Kun WANG, Chaoxing WU, Dianlun LI, Yongai ZHANG, Xiongtu ZHOU, Ye LIU
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Publication number: 20230352642Abstract: The present invention relates to a full-color µLED micro-display device without electrical contact and a manufacturing method therefor.Type: ApplicationFiled: August 31, 2020Publication date: November 2, 2023Applicants: FUZHOU UNIVERSITY, MINDU INNOVATION LABInventors: Yongai ZHANG, Shiyao CHEN, Tailiangi GUO, Xiongtu ZHOU, Chaoxing WU, Zhixian LIN, Lei SUN, Qun YAN
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Publication number: 20230197882Abstract: The present invention relates to a ?LED light emitting device without electrical contact based on a wavelength down-conversion. The ?LED light emitting device without electrical contact comprises ?LED crystal grains, wavelength down-conversion light emitting lavers, ate upper driving electrode and a lower driving electrode, insulators, an optical micro-structure and a control module. The upper driving electrode and the lower driving electrode are free from direct electrical contact with each of the ?LED crystal grains, the control module is electrically connected with the upper driving electrode and the lower driving electrode respectively to provide alternating driving signals to the upper driving electrode and the lower driving electrode so as to form a driving electric field, and the driving electric field controls an electron-hole recombination of the ?LED crystal grain and emits a first light source which is converted into a second light source via the wavelength down-conversion light emitting layer.Type: ApplicationFiled: August 31, 2020Publication date: June 22, 2023Applicants: FUZHOU UNIVERSITY, MINDU INNOVATION LABInventors: Yongai ZHANG, Xuyang WENG, Tailiang GUO, Xiongtu ZHOU, Chaoxing WU, Zhixian LIN, Lei SUN, Qun YAN
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Publication number: 20150192780Abstract: This invention presents a stereoscopic LED display with dual barriers, comprising a LED display panel, a heat shield, a first barrier, a second barrier, a protection layer, a packaging layer. The first barrier is placed between the LED panel and the second barrier, making the centers of the LED sub-pixels on the same levels laterally and longitudinally. The second barrier is placed between the first barrier and the protection layer for the stereoscopic light splitting. This invention provides an effective solution for the alignment problem of the LED by controlling the positions of the first barrier and the second barrier, which is favorable for the realization of large scale, high brightness naked LED 3D display, furthermore, this method is simple and low-cost.Type: ApplicationFiled: April 26, 2012Publication date: July 9, 2015Inventors: Tailiang Guo, Yongai Zhang, Xiongtu Zhou, Yun Ye, Jianmin Yao, Zhixian Lin, Liqin Hu, Sheng Xu
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Patent number: 8890430Abstract: The present invention relates to display manufacturing technology, especially for a dielectric-free triode field emission display device based on double-gate/single-cathode type electron emission units and the device drive methods. This device comprises parallelly positioned anode and cathode/gate plates, during production, gate/cathode/gate electron emission units are set on the cathode/gate plate side by side. The spacing between cathode and gate electrodes is vacuum circumstance. For each cathode, an anode is positioned on the anode plate, facing the cathode. And the voltages applied on the cathode and gate electrodes are to scan and the anode voltage is to adjust the signal. When the electrodes on the cathode/gate plate take on fixed roles, fixed voltages are used to drive the device. When these electrodes on the cathode/gate plate can be used interchangeably as cathode or gate electrodes, respectively, pulse scanning method is used to drive the device.Type: GrantFiled: July 15, 2011Date of Patent: November 18, 2014Inventors: Tailiang Guo, Jianmin Yao, Zhixian Lin, Yun Ye, Zhilong Chen, Yongai Zhang, Sheng Xu, Liqin Hu
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Patent number: 8803413Abstract: The present invention relates to a symmetric quadrupole structured field emission display without spacer comprising the upper and under substrates with a dielectric layer in between, wherein comb-like dielectric layer with lateral connection belts and a number of longitudinal working belts and longitudinal anodes are arranged on the upper substrate, bus electrodes are arranged longitudinally along the center on each anode, on the top, longitudinal alternating phosphor layer and dielectric layer for isolation on anode, gate electrodes are arranged on both sides of each longitudinal work belts, with the bus electrode as symmetry center, forming interdigital gate electrodes, horizontal cathode electrodes and longitudinal auxiliary electrodes are on the under substrate, resistor layer for current limiting and dielectric layer for cathode protection are arranged alternating horizontally on each cathode electrode, each intersect of the auxiliary electrode and cathode is isolated by the dielectric layer for cathode.Type: GrantFiled: August 12, 2011Date of Patent: August 12, 2014Inventors: Tailiang Guo, Yun Ye, Zhixian Lin, Yongai Zhang, Liqin Jiu, Yuxiang You
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Publication number: 20140111083Abstract: The present invention relates to a symmetric quadrupole structured field emission display without spacer comprising the upper and under substrates with a dielectric layer in between, wherein comb-like dielectric layer with lateral connection belts and a number of longitudinal working belts and longitudinal anodes are arranged on the upper substrate, bus electrodes are arranged longitudinally along the center on each anode, on the top, longitudinal alternating phosphor layer and dielectric layer for isolation on anode, gate electrodes are arranged on both sides of each longitudinal work belts, with the bus electrode as symmetry center, forming interdigital gate electrodes, horizontal cathode electrodes and longitudinal auxiliary electrodes are on the under substrate, resistor layer for current limiting and dielectric layer for cathode protection are arranged alternating horizontally on each cathode electrode, each intersect of the auxiliary electrode and cathode is isolated by the dielectric layer for cathodeType: ApplicationFiled: August 12, 2011Publication date: April 24, 2014Inventors: Tailiang Guo, Yun Ye, Zhixian Lin, Yongai Zhang, Liqin Jiu, Yuxiang You
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Publication number: 20130241434Abstract: The present invention relates to display manufacturing technology, especially for a dielectric-free triode field emission display device based on double-gate/single-cathode type electron emission units and the device drive methods. This device comprises parallelly positioned anode and cathode/gate plates, during production, gate/cathode/gate electron emission units are set on the cathode/gate plate side by side. The spacing between cathode and gate electrodes is vacuum circumstance. For each cathode, an anode is positioned on the anode plate, facing the cathode. And the voltages applied on the cathode and gate electrodes are to scan and the anode voltage is to adjust the signal. When the electrodes on the cathode/gate plate take on fixed roles, fixed voltages are used to drive the device. When these electrodes on the cathode/gate plate can be used interchangeably as cathode or gate electrodes, respectively, pulse scanning method is used to drive the device.Type: ApplicationFiled: July 15, 2011Publication date: September 19, 2013Inventors: Tailiang Guo, Jianmin Yao, Zhixian Lin, Yun Ye, Zhilong Chen, Yongai Zhang, Sheng Xu, Liqin Hu
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Patent number: 8476819Abstract: The present invention relates to a triode field emission display with anode and gate on the same substrate, comprising anode-gate substrate and cathode substrate, parallel and adapted in the size; a number of strip-like cathode conducting layers arranged alternating on the cathode substrate; resistor layer for current limiting and dielectric layer for cathode protection are arranged alternately on the cathode conducting layer in the longitudinal direction; the electron emission materials are arranged on the resistor layer for current limiting; wherein the strip-like anode conducting layer and strip-like gate conducting layer on the anode-gate substrate are perpendicular to the strip-like cathode conducting layer on the cathode substrate, dielectric layer for isolation is arranged between the anode-gate and the cathode substrates, one end of the dielectric layer for isolation is connected to the dielectric layer for gate protection, the other end is connected to the dielectric layer for cathode protection.Type: GrantFiled: August 12, 2011Date of Patent: July 2, 2013Inventors: Tailiang Guo, Yongai Zhang, Zhixian Lin, Liqin Hu, Yun Ye, Yuxiang You
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Publication number: 20130026906Abstract: The present invention relates to a triode field emission display with anode and gate on the same substrate, comprising anode-gate substrate and cathode substrate, parallel and adapted in the size; a number of strip-like cathode conducting layers arranged alternating on the cathode substrate; resistor layer for current limiting and dielectric layer for cathode protection are arranged alternately on the cathode conducting layer in the longitudinal direction; the electron emission materials are arranged on the resistor layer for current limiting; wherein the strip-like anode conducting layer and strip-like gate conducting layer on the anode-gate substrate are perpendicular to the strip-like cathode conducting layer on the cathode substrate, dielectric layer for isolation is arranged between the anode-gate and the cathode substrates, one end of the dielectric layer for isolation is connected to the dielectric layer for gate protection, the other end is connected to the dielectric layer for cathode protection.Type: ApplicationFiled: August 12, 2011Publication date: January 31, 2013Inventors: Tailiang Guo, Yongai Zhang, Zhixian Lin, Liqin Hu, Yun Ye, Yuxiang You
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Publication number: 20120182329Abstract: This invention is involved with the discipline of the display manufacturing technique, especially a low grey enhancement method for the FED system based on a SRD grey modulation driving technique. The feature is which based on the sub-row grey modulation of the SRD technique, apply low grey enhancement to eliminate the low grey loss in the low grey image information. In addition, the low grey loss is modified by the time compensation, and the display quality of the image is improved.Type: ApplicationFiled: March 16, 2011Publication date: July 19, 2012Inventors: Zhixian Lin, Tailiang Guo, Sheng Xu, Yongai Zhang