Patents by Inventor Zuwen Liu

Zuwen Liu 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).

  • Publication number: 20230400630
    Abstract: An optical phased array is provided, including: a silicon substrate; a silicon oxide layer; an optical waveguide layer including a coupling beam splitter and a grating antenna; a silicon oxide cladding layer, disposed around the optical waveguide layer and filled in the band-shaped gap; and one or more lithium niobate phase shifters; each lithium niobate phase shifter includes: a lithium niobate thin film located in the band-shaped gap, a lithium niobate optical waveguide disposed over the lithium niobate thin film and connected to the coupling beam splitter and the grating antenna, modulation electrodes. The present disclosure uses materials with high electro-optical coefficient and low loss, such as lithium niobate, to replace thermal modulation resistors and the phase modulation mode based on carrier injection used in optical phased arrays, so that the optical phase modulation with low power consumption, high speed and low waveguide loss can be performed.
    Type: Application
    Filed: October 16, 2020
    Publication date: December 14, 2023
    Applicant: UNITED MICROELECTRONICS CENTER CO., LTD.
    Inventors: LI JIN, PING JIANG, YOUXI LU, JIANZHONG HAN, JIN GUO, JUNBO FENG, ZUWEN LIU, RUI CAO, QIXIN LIU, BEIBEI WU, MIJIE YANG, TONGHUI LI
  • Patent number: 11774776
    Abstract: The grating substrate includes a first base substrate and a plurality of grating units on the first base substrate. The grating unit includes two control layers, a barrier structure between the two control layers, and a plurality of movable particles in a closed cavity surrounded by the barrier structure and the two control layers. The two control layers include a first control layer and a second control layer. The first control layer is located on a side of the second control layer distal from the first base substrate, and the two control layers are configured to control movement of the plurality of particles. The particles satisfy at least one of the following conditions: the particles have a refractive index smaller than a refractive index of the first control layer, or the particles are non-transparent particles.
    Type: Grant
    Filed: December 17, 2019
    Date of Patent: October 3, 2023
    Assignees: FUZHOU BUE OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Wenchang Tao, Zongxiang Li, Linlin Lin, Xinmao Qiu, Zuwen Liu, Jin Wang, Changhong Shi, Yaochao Lv, Jiamin Liao, Yao Liu, Xi Chen, Min Zhou, Guichun Hong, Zhendian Wu, Hao Cheng, Yawen Huang, Zihua Zhuang
  • Publication number: 20230027271
    Abstract: A silicon photonic chip-based LiDAR, comprising a silicon photonic chip (2), a laser module, a beam collimator module (4), and a signal processing module (6), where the laser outputs a frequency modulated continuous laser and transmits the frequency modulated continuous laser to the silicon photonic chip (2), where the laser is split and transmitted in the silicon photonic chip (2) to form a reference interference light and a local oscillation light on the one hand, and the split laser is transmitted to the target (5) via the beam collimator module (4), and then the reflect light of the reference interference light is received to interfere with the local oscillation light to form a measurement interference light on the other hand; and the reference interference light and the measurement interference light are photoelectrically detected in the silicon photonic chip (2) and form an electrical signal being output to the signal processing module (6) to obtain the distance and speed of the target.
    Type: Application
    Filed: July 22, 2020
    Publication date: January 26, 2023
    Applicant: United Microelectronics Center Co., Ltd
    Inventors: Li JIN, Rui CAO, Junbo FENG, Zuwen LIU, Ping JIANG, Jin GUO, Youxi LU, Qixin LIU, Mijie YANG, Tonghui LI
  • Patent number: 11460810
    Abstract: The present disclosure provides a holographic reproduction device, a holographic reproduction system, and a holographic display system. The holographic reproduction device includes a first light source configured to provide first coherent light; at least one electrically addressed liquid crystal display panel configured to display a holographic interferogram, so that the first coherent light is diffracted when the first coherent light transmits through the holographic interferogram to present a holographic reproduction image. A liquid crystal material of the electrically addressed liquid crystal display panel includes smectic liquid crystal.
    Type: Grant
    Filed: March 27, 2020
    Date of Patent: October 4, 2022
    Assignees: FUZHOU BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., BEIJING BOE TECHNOLOGY DEVELOPMENT CO., LTD.
    Inventors: Jin Wang, Changhong Shi, Jiamin Liao, Yao Liu, Wenchang Tao, Zuwen Liu, Zihua Zhuang, Hao Cheng, Hongjiang Wu, Xi Chen
  • Patent number: 11404019
    Abstract: The present disclosure provides a method for compensating a common voltage. The method for compensating a common voltage includes: generating a feedback signal by acquiring a real-time monitoring result of a feedback signal line on the common voltage, the feedback signal including a plurality of time periods, each of the time periods including a first sub-period in which the feedback signal is interfered by the periodic signal and a second sub-period in which the feedback signal is not interfered by the periodic signal; processing the feedback signal to eliminate distortion of the feedback signal caused by interference of the periodic signal in the first sub-period; and compensating for the common voltage according to the feedback signal.
    Type: Grant
    Filed: August 13, 2019
    Date of Patent: August 2, 2022
    Assignees: Fuzhou BOE Optoelectronics Technology Co., Ltd., BOE Technology Group Co., Ltd.
    Inventors: Xinmao Qiu, Zongxiang Li, Jiamin Liao, Jin Wang, Hao Cheng, Yao Liu, Min Zhou, Wenchang Tao, Zhendian Wu, Zuwen Liu, Guichun Hong, Zihua Zhuang, Yaochao Lv, Changhong Shi, Linlin Lin, Wen Zha, Jingguang Zhu, Jiantao Lin, Hongjiang Wu
  • Patent number: 11244639
    Abstract: A display panel includes a plurality of sub-pixels. At least one sub-pixel of the plurality of sub-pixels includes a first electrode, a light modulation structure disposed on a side of the first electrode, and a second electrode disposed at a side of the light modulation structure away from the first electrode. The light modulation structure includes a refractive index adjustment layer, and a light modulation layer disposed between the refractive index adjustment layer and the first electrode. A refractive index of the refractive index adjustment layer is changed under action of an electric field between the first electrode and the second electrode. The light modulation layer is in contact with the refractive index adjustment layer, and at least a part of a surface of the light modulation layer that is in contact with the refractive index adjustment layer is a curved face.
    Type: Grant
    Filed: December 20, 2019
    Date of Patent: February 8, 2022
    Assignees: FUZHOU BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Changhong Shi, Jin Wang, Wenchang Tao, Zongxiang Li, Jiamin Liao, Min Zhou, Yao Liu, Hongjiang Wu, Zuwen Liu
  • Patent number: 11237438
    Abstract: The present disclosure relates to a display substrate. The display substrate may include a base substrate, a light filtering layer on the base substrate, a plurality of light blocking grooves in the light filtering layer, and a plurality of light blocking strips in the plurality of light blocking grooves respectively. The plurality of light blocking strips may be configured to block light from viewing angles outside a visible range of the display substrate.
    Type: Grant
    Filed: September 26, 2019
    Date of Patent: February 1, 2022
    Assignees: FUZHOU BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Xinmao Qiu, Zongxiang Li, Jin Wang, Yao Liu, Min Zhou, Hao Cheng, Zuwen Liu
  • Patent number: 11216098
    Abstract: An OLED display panel is provided, including a pixel circuit layer, an OLED layer, and a reflective layer that are sequentially stacked, wherein the reflective layer includes at least one reflective block, and the at least one reflective block is a conductor and is connected to a touch integrated circuit.
    Type: Grant
    Filed: December 13, 2019
    Date of Patent: January 4, 2022
    Assignees: FUZHOU BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Wenchang Tao, Zongxiang Li, Jin Wang, Zuwen Liu, Zhendian Wu, Linlin Lin, Guichun Hong
  • Patent number: 11158281
    Abstract: Provided are a display panel and a driving method thereof. The display panel includes an array substrate, the display panel including a display region and a peripheral region. In the peripheral region, a common voltage wiring, a voltage feedback wiring, a periodic signal wiring, and a decoupling wiring are disposed on the array substrate at intervals; the common voltage wiring is configured to transmit a common voltage signal for display to a pixel array in the display region, the voltage feedback wiring is configured to transmit a voltage feedback signal for monitoring changes in the common voltage signal, the periodic signal wiring is configured to provide the pixel array with a periodic signal for display, the decoupling wiring is located between the periodic signal wiring and the voltage feedback wiring, and is configured to transmit a decoupling signal for reducing coupling distortion of the voltage feedback signal.
    Type: Grant
    Filed: November 26, 2018
    Date of Patent: October 26, 2021
    Assignees: FUZHOU BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Yaochao Lv, Hao Cheng, Zongxiang Li, Jiamin Liao, Wenchang Tao, Guichun Hong, Zhendian Wu, Linlin Lin, Zuwen Liu, Jin Wang, Xinmao Qiu, Changhong Shi, Zihua Zhuang, Min Zhou, Yawen Huang, Yao Liu, Jingguang Zhu, Jiantao Lin, Xi Chen
  • Patent number: 11092829
    Abstract: The present disclosure relates to a display device and a display method thereof. The display device includes: a plurality of sub-pixels each including a light emitting element and a liquid crystal spatial light modulator, wherein the liquid crystal spatial light modulator is located on a light emission side of the light emitting element, and a phase of light emitted by the light emitting element is modulatable after passing through the liquid crystal spatial light modulator; a first control circuit configured to control a light emission intensity and chromaticity of the light emitting element; and a second control circuit configured to control deflection of liquid crystal in the liquid crystal spatial light modulator so as to modulate the phase.
    Type: Grant
    Filed: May 9, 2019
    Date of Patent: August 17, 2021
    Assignees: Fuzhou BOE Optoelectronics Technology Co., Ltd., BOE Technology Group Co., Ltd.
    Inventors: Jin Wang, Xi Chen, Zongxiang Li, Jiamin Liao, Wenchang Tao, Zhendian Wu, Dahai Li, Changhong Shi, Zuwen Liu
  • Publication number: 20210232007
    Abstract: The present disclosure relates to a display substrate. The display substrate may include a base substrate, a light filtering layer on the base substrate, a plurality of light blocking grooves in the light filtering layer, and a plurality of light blocking strips in the plurality of light blocking grooves respectively. The plurality of light blocking strips may be configured to block light from viewing angles outside a visible range of the display substrate.
    Type: Application
    Filed: September 26, 2019
    Publication date: July 29, 2021
    Applicants: FUZHOU BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE Technology Group Co., Ltd.
    Inventors: Xinmao Qiu, Zongxiang Li, Jin Wang, Yao Liu, Min Zhou, Hao Cheng, Zuwen Liu
  • Publication number: 20210232247
    Abstract: An OLED display panel is provided, including a pixel circuit layer, an OLED layer, and a reflective layer that are sequentially stacked, wherein the reflective layer includes at least one reflective block, and the at least one reflective block is a conductor and is connected to a touch integrated circuit.
    Type: Application
    Filed: December 13, 2019
    Publication date: July 29, 2021
    Inventors: Wenchang Tao, Zongxiang Li, Jin Wang, Zuwen Liu, Zhendian Wu, Linlin Lin, Guichun Hong
  • Publication number: 20210199986
    Abstract: The grating substrate includes a first base substrate and a plurality of grating units on the first base substrate. The grating unit includes two control layers, a barrier structure between the two control layers, and a plurality of movable particles in a closed cavity surrounded by the barrier structure and the two control layers. The two control layers include a first control layer and a second control layer. The first control layer is located on a side of the second control layer distal from the first base substrate, and the two control layers are configured to control movement of the plurality of particles. The particles satisfy at least one of the following conditions: the particles have a refractive index smaller than a refractive index of the first control layer, or the particles are non-transparent particles.
    Type: Application
    Filed: December 17, 2019
    Publication date: July 1, 2021
    Inventors: Wenchang Tao, Zongxiang Li, Linlin Lin, Xinmao Qiu, Zuwen Liu, Jin Wang, Changhong Shi, Yaochao Lv, Jiamin Liao, Yao Liu, Xi Chen, Min Zhou, Guichun Hong, Zhendian Wu, Hao Cheng, Yawen Huang, Zihua Zhuang
  • Publication number: 20210188173
    Abstract: Embodiments of the present disclosure provide an anti-glare apparatus, a method for manufacturing the same, a rear-view mirror, an anti-glare method, a computer equipment, and a storage medium. The anti-glare apparatus includes: a first substrate; a second substrate; and a plurality of anti-glare cells. Each anti-glare cell includes a light intensity detector and an anti-glare display device. The light intensity detector is configured to detect a light intensity of incident light and output an electrical signal. The anti-glare display device is configured to adjust a light transmittance of the anti-glare display device according to the electrical signal output by the light intensity detector, so that outgoing light emitted after the incident light is reflected by the anti-glare display device has a light intensity that is within a preset light intensity range.
    Type: Application
    Filed: June 5, 2020
    Publication date: June 24, 2021
    Inventors: Changhong Shi, Jin Wang, Zuwen Liu, Zihua Zhuang, Jiantao Lin, Jingguang Zhu, Zhendian Wu, Guichun Hong, Xinmao Qiu
  • Publication number: 20210157165
    Abstract: The present disclosure provides a display panel, a manufacturing method and a control method thereof and a display device. The display panel comprises a first substrate and a second substrate disposed opposite to each other, a first electrode layer is disposed on a side of the first substrate proximal to the second substrate, a second electrode layer is disposed on a side of the second substrate proximal to the first substrate, the display panel further comprises a third electrode layer disposed between the first electrode layer and the second electrode layer, a pixel layer disposed between the first electrode layer and the third electrode layer, and a liquid crystal layer disposed between the third electrode layer and the second electrode layer for forming a grating.
    Type: Application
    Filed: February 24, 2020
    Publication date: May 27, 2021
    Inventors: Changhong SHI, Jin WANG, Yao LIU, Jiamin LIAO, Zongxiang LI, Zhendian WU, Hao CHENG, Zuwen LIU
  • Publication number: 20210065646
    Abstract: Provided are a display panel and a driving method thereof. The display panel includes an array substrate, the display panel including a display region and a peripheral region. In the peripheral region, a common voltage wiring, a voltage feedback wiring, a periodic signal wiring, and a decoupling wiring are disposed on the array substrate at intervals; the common voltage wiring is configured to transmit a common voltage signal for display to a pixel array in the display region, the voltage feedback wiring is configured to transmit a voltage feedback signal for monitoring changes in the common voltage signal, the periodic signal wiring is configured to provide the pixel array with a periodic signal for display, the decoupling wiring is located between the periodic signal wiring and the voltage feedback wiring, and is configured to transmit a decoupling signal for reducing coupling distortion of the voltage feedback signal.
    Type: Application
    Filed: November 26, 2018
    Publication date: March 4, 2021
    Inventors: Yaochao LV, Hao CHENG, Zongxiang LI, Jiamin LIAO, Wenchang TAO, Guichun HONG, Zhendian WU, Linlin LIN, Zuwen LIU, Jin WANG, Xinmao QIU, Changhong SHI, Zihua ZHUANG, Min ZHOU, Yawen HUANG, Yao LIU, Jingguang ZHU, Jiantao LIN, Xi CHEN
  • Publication number: 20210012723
    Abstract: A display panel includes a plurality of sub-pixels. At least one sub-pixel of the plurality of sub-pixels includes a first electrode, a light modulation structure disposed on a side of the first electrode, and a second electrode disposed at a side of the light modulation structure away from the first electrode. The light modulation structure includes a refractive index adjustment layer, and a light modulation layer disposed between the refractive index adjustment layer and the first electrode. A refractive index of the refractive index adjustment layer is changed under action of an electric field between the first electrode and the second electrode. The light modulation layer is in contact with the refractive index adjustment layer, and at least a part of a surface of the light modulation layer that is in contact with the refractive index adjustment layer is a curved face.
    Type: Application
    Filed: December 20, 2019
    Publication date: January 14, 2021
    Inventors: Changhong SHI, Jin WANG, Wenchang TAO, Zongxiang LI, Jiamin LIAO, Min ZHOU, Yao LIU, Hongjiang WU, Zuwen LIU
  • Publication number: 20200409308
    Abstract: The present disclosure provides a holographic reproduction device, a holographic reproduction system, and a holographic display system. The holographic reproduction device includes a first light source configured to provide first coherent light; at least one electrically addressed liquid crystal display panel configured to display a holographic interferogram, so that the first coherent light is diffracted when the first coherent light transmits through the holographic interferogram to present a holographic reproduction image. A liquid crystal material of the electrically addressed liquid crystal display panel includes smectic liquid crystal.
    Type: Application
    Filed: March 27, 2020
    Publication date: December 31, 2020
    Inventors: Jin WANG, Changhong SHI, Jiamin LIAO, Yao LIU, Wenchang TAO, Zuwen LIU, Zihua ZHUANG, Hao CHENG, Hongjiang WU, Xi CHEN
  • Patent number: 10794759
    Abstract: An optical detection sensor is disclosed. The optical detection sensor includes a converter configured to receive non-visible light, convert the non-visible light into visible light, and emit the visible light; and a visible light solid-state image sensor. The converter is located on a light incident side of the visible light solid-state image sensor, and the visible light solid-state image sensor is configured to receive the visible light to generate an electron flow, convert information of the electron flow into data information, and output the data information.
    Type: Grant
    Filed: May 21, 2019
    Date of Patent: October 6, 2020
    Assignees: FUZHOU BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Hao Cheng, Yanfei Chi, Xi Chen, Zhixiao Yao, Zongxiang Li, Jiamin Liao, Wenchang Tao, Zhendian Wu, Dahai Li, Linlin Lin, Guichun Hong, Yao Liu, Zuwen Liu, Jin Wang, Xinmao Qiu, Changhong Shi, Yaochao Lv, Zihua Zhuang, Min Zhou, Yawen Huang
  • Publication number: 20200271970
    Abstract: The present disclosure relates to a display device and a display method thereof. The display device includes: a plurality of sub-pixels each including a light emitting element and a liquid crystal spatial light modulator, wherein the liquid crystal spatial light modulator is located on a light emission side of the light emitting element, and a phase of light emitted by the light emitting element is modulatable after passing through the liquid crystal spatial light modulator; a first control circuit configured to control a light emission intensity and chromaticity of the light emitting element; and a second control circuit configured to control deflection of liquid crystal in the liquid crystal spatial light modulator so as to modulate the phase.
    Type: Application
    Filed: May 9, 2019
    Publication date: August 27, 2020
    Inventors: Jin Wang, Xi Chen, Zongxiang Li, Jiamin Liao, Wenchang Tao, Zhendian Wu, Dahai Li, Changhong Shi, Zuwen Liu