Patents by Inventor Sheng-Jer Chang Chien

Sheng-Jer Chang Chien 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: 20210080636
    Abstract: A backlight module and a display device are disclosed. The backlight module includes a backlight source for emitting a blue light; a light guide plate having a light-incident surface and a light-emitting surface; a red quantum dot layer; and a green quantum dot layer; wherein the red quantum dot layer and the green quantum dot layer are respectively located at the light-incident surface and the light-emitting surface, the blue light emitted from the backlight source sequentially passes through the red quantum dot layer, the light guide plate and the green quantum dot layer to emit out. The present invention can increase the light efficiency of the backlight module and a display effect of the display device.
    Type: Application
    Filed: March 14, 2018
    Publication date: March 18, 2021
    Inventors: Jianyu CHANG, Yung-Jui LEE, Yuchun HSIAO, Sheng-jer CHANG CHIEN
  • Patent number: 10649129
    Abstract: The present invention discloses a light guide plate, a backlight module and a display device. The light guide plate comprises a light conversion layer, the light conversion layer is arranged at a light emitting plane of the light guide plate for receiving a first light and converting the same to at least a second light to emit. According to the aforesaid aspect, the present invention can improve the display effect of the display device by making the emitted light have a better diffusivity and a larger brightness view angle.
    Type: Grant
    Filed: July 18, 2017
    Date of Patent: May 12, 2020
    Assignee: Shenzhen China Star Optoelectronics Technology Co., Ltd
    Inventors: Jianyu Chang, Yung-jui Lee, Yu-chun Hsiao, Sheng-Jer Chang Chien, Lixuan Chen
  • Patent number: 10591776
    Abstract: The present application discloses a backlight module and a display device, the backlight module including a light source for emitting at least a first light; at least two sheets of light conversion films, wherein at least one sheet of light conversion films receives the first light and converts the light into at least a second light to emit, and makes the light emitting angle of the backlight module matching the wide viewing angle display requirements. It can increase the light emitting angle of the backlight module and achieve the wide viewing angle effect. By having at least two sheets of light conversion films at the same time, a part of the light is reflected back while the light is scattered and emitted at the same time, and the light is excited and emitted again, to improve the light utilization rate, enhance the brightness to have a better performance of display.
    Type: Grant
    Filed: July 18, 2017
    Date of Patent: March 17, 2020
    Assignee: Shenzhen China Star Optoelectronics Technology Co., Ltd
    Inventors: Jianyu Chang, Yung-jui Lee, Yu-chun Hsiao, Sheng-Jer Chang Chien, Zanjia Su
  • Patent number: 10527774
    Abstract: The invention provides an optical film assembly, a backlight module, and a display device. The backlight module includes a light source emitting at least a first light, a first optical film, and a second optical film laminated to the first optical film, wherein the first optical film includes a base film and a functional layer stacking up to the base film, the functional layer is a diffusion film, a brightness enhancement film, a reflection film, or a prism film, the second optical film is a light conversion layer, the light conversion layer receives the first light and converts the first light to a second light to emit, such that a light emission angle of the backlight module matches a requirement of wide viewing angle. The invention could broaden the light emitting angle of the backlight module to make the display device with the backlight module achieve wide viewing angle.
    Type: Grant
    Filed: July 17, 2017
    Date of Patent: January 7, 2020
    Assignee: Shenzhen China Star Optoelectronics Technology Co., Ltd
    Inventors: Jianyu Chang, Yung-jui Lee, Yu-chun Hsiao, Sheng-Jer Chang Chien, Zanjia Su, Bo Hai
  • Patent number: 10424700
    Abstract: The present disclosure relates to a LED lamp source and the manufacturing method and the backlight module thereof. The LED lamp source includes a substrate and a LED chip, fluorescent adhesive, and a white reflective layer being fixed on the substrate. The fluorescent adhesive encapsulates the LED chip on the substrate, and the white reflective layer is configured for reflecting light beams emitted from the fluorescent adhesive and being radiated on the white reflective layer. A positive projection of the fluorescent adhesive on the substrate is within the positive projection of the white reflective layer on the substrate.
    Type: Grant
    Filed: May 17, 2017
    Date of Patent: September 24, 2019
    Assignee: Shenzhen China Star Optoelectronics Technology Co., Ltd
    Inventors: Yong Fan, Yu-chun Hsiao, Sheng-Jer Chang Chien
  • Patent number: 10359559
    Abstract: The invention provides an optical film assembly, a backlight module, and a display device. The backlight module includes a light source emitting at least a first light, a first optical film, and a second optical film laminated to the first optical film, wherein the first optical film includes a functional layer but does not include a base film, the functional layer is a diffusion film, a brightness enhancement film, a reflection film, or a prism film, and the second optical film is a light conversion layer, the light conversion layer receives the first light and converts the first light to at least a second light to emit, such that a light emission angle of the backlight module matches a requirement of wide viewing angle. The invention could broaden the light emitting angle of the backlight module to make the display device with the backlight module achieve wide viewing angle.
    Type: Grant
    Filed: July 14, 2017
    Date of Patent: July 23, 2019
    Assignee: Shenzhen China Star Optoelectronics Technology Co., Ltd
    Inventors: Jianyu Chang, Yung-jui Lee, Yu-chun Hsiao, Sheng-Jer Chang Chien, Zanjia Su, Bo Hai
  • Publication number: 20190219874
    Abstract: The invention provides a backlight module, comprising a backlight source, a light-guiding plate, and a quantum dot layer, all stacked in sequence; the quantum dot layer comprising: a first surface and a second surface, oppositely disposed, the second surface being adhered to the light-guiding plate, and the quantum dot layer being disposed with a plurality of first areas and a plurality of second areas formed between the first surface and the second surface; each first area being disposed between two adjacent second areas so as to form the first area and the second area alternately arranged; the first area having a concentration of the quantum dots less than concentration of the quantum dots in the second area; the first surface forming the first areas comprising a first curved surface, and the first curved surface being used to perform scattering on light passing through the first area.
    Type: Application
    Filed: June 29, 2018
    Publication date: July 18, 2019
    Inventors: Jianyu CHANG, Yung-Jui LEE, Yuchun HSIAO, Sheng-jer CHANG CHIEN
  • Patent number: 10247983
    Abstract: A light conversion film for a backlight module, a backlight module and a display device are disclosed. The backlight module includes a light source that emits at least a first light; a light conversion film that receives the first light, converts the first light into a second light and emits the second light such that a light emission angle of the backlight module is greater than 120 degrees and a color temperature is less than 15000. The present invention can increase a brightness viewing angle to reach 120 degrees. Besides, the light conversion film has a higher light excitation efficiency, capable of decreasing the color temperature of the backlight module, and enhances the display effect.
    Type: Grant
    Filed: July 14, 2017
    Date of Patent: April 2, 2019
    Assignee: Shenzhen China Star Optoelectronics Technology Co., Ltd
    Inventors: Jianyu Chang, Yung-jui Lee, Yu-chun Hsiao, Sheng-Jer Chang Chien, Zanjia Su
  • Publication number: 20190049792
    Abstract: The present disclosure provides a light source component, which includes a power supply plate; at least two point light sources disposed on the power supply plate; and a reflective block disposed on the power supply plate and between two point light sources adjacent to each other, wherein the reflective block is used to reflect light emitted from the point light sources thereto along a direction away from the power supply plate. The present disclosure further provides a backlight module and a liquid crystal display with the light source component. The present disclosure can reduce the amount of the point light source used and save the cost significantly when manufacturing point light sources of the same number by disposing a reflective block which serves equivalently as a point light source between the point light sources.
    Type: Application
    Filed: July 25, 2017
    Publication date: February 14, 2019
    Inventors: Sheng-Jer Chang Chien, Yong Fan, Yuchun Hsiao
  • Publication number: 20190004375
    Abstract: The present disclosure discloses an optical film, a backlight module and a display device for a backlight module, and relates to a liquid crystal panel display technology field. The backlight module including: a light source emitting at least a first light; the optical film includes a light converting material which receives the first light and converts it into at least a second light exit such that the light emitting angle of the backlight module is greater than 120 degrees. In the above-described manner, the present disclosure enables the backlighting angle of the backlight module to be greater than 120 degrees, and the display device having the backlight module can be brought to a wide viewing angle effect.
    Type: Application
    Filed: July 18, 2017
    Publication date: January 3, 2019
    Applicant: Shenzhen China Star Optoelectronics Technology Co. Ltd.
    Inventors: Jianyu CHANG, Yung-jui LEE, Yu-chun HSIAO, Sheng-Jer CHANG CHIEN, Zanjia SU
  • Publication number: 20190004232
    Abstract: The invention provides an optical film assembly, a backlight module, and a display device. The backlight module includes a light source emitting at least a first light, a first optical film, and a second optical film laminated to the first optical film, wherein the first optical film includes a functional layer but does not include a base film, the functional layer is a diffusion film, a brightness enhancement film, a reflection film, or a prism film, and the second optical film is a light conversion layer, the light conversion layer receives the first light and converts the first light to at least a second light to emit, such that a light emission angle of the backlight module matches a requirement of wide viewing angle. The invention could broaden the light emitting angle of the backlight module to make the display device with the backlight module achieve wide viewing angle.
    Type: Application
    Filed: July 14, 2017
    Publication date: January 3, 2019
    Applicant: Shenzhen China Star Optoelectronics Technology Co. Ltd.
    Inventors: Jianyu CHANG, Yung-jui LEE, Yu-chun HSIAO, Sheng-Jer CHANG CHIEN, Zanjia SU, Bo HAI
  • Publication number: 20190004231
    Abstract: The invention provides an optical film assembly, a backlight module, and a display device. The backlight module includes a light source emitting at least a first light, a first optical film, and a second optical film laminated to the first optical film, wherein the first optical film includes a base film and a functional layer stacking up to the base film, the functional layer is a diffusion film, a brightness enhancement film, a reflection film, or a prism film, the second optical film is a light conversion layer, the light conversion layer receives the first light and converts the first light to a second light to emit, such that a light emission angle of the backlight module matches a requirement of wide viewing angle. The invention could broaden the light emitting angle of the backlight module to make the display device with the backlight module achieve wide viewing angle.
    Type: Application
    Filed: July 17, 2017
    Publication date: January 3, 2019
    Applicant: Shenzhen China Star Optoelectronics Technology Co. Ltd.
    Inventors: Jianyu CHANG, Yung-jui LEE, Yu-chun HSIAO, Sheng-Jer CHANG CHIEN, Zanjia SU, Bo HAI
  • Publication number: 20190004374
    Abstract: The present application discloses a backlight module and a display device, the backlight module including a light source for emitting at least a first light; at least two sheets of light conversion films, wherein at least one sheet of light conversion films receives the first light and converts the light into at least a second light to emit, and makes the light emitting angle of the backlight module matching the wide viewing angle display requirements. It can increase the light emitting angle of the backlight module and achieve the wide viewing angle effect. By having at least two sheets of light conversion films at the same time, a part of the light is reflected back while the light is scattered and emitted at the same time, and the light is excited and emitted again, to improve the light utilization rate, enhance the brightness to have a better performance of display.
    Type: Application
    Filed: July 18, 2017
    Publication date: January 3, 2019
    Applicant: Shenzhen China Star Optoelectronics Technology Co. Ltd.
    Inventors: Jianyu CHANG, Yung-jui LEE, Yu-chun HSIAO, Sheng-Jer CHANG CHIEN, Zanjia SU
  • Publication number: 20180335560
    Abstract: The present invention discloses a light guide plate, a backlight module and a display device. The light guide plate comprises a light conversion layer, the light conversion layer is arranged at a light emitting plane of the light guide plate for receiving a first light and converting the same to at least a second light to emit. According to the aforesaid aspect, the present invention can improve the display effect of the display device by making the emitted light have a better diffusivity and a larger brightness view angle.
    Type: Application
    Filed: July 18, 2017
    Publication date: November 22, 2018
    Applicant: Shenzhen China Star Optoelectronics Technology Co. , Ltd.
    Inventors: Jianyu CHANG, Yung-jui LEE, Yu-chun HSIAO, Sheng-Jer CHANG CHIEN, Lixuan CHEN
  • Publication number: 20180321526
    Abstract: A light conversion film for a backlight module, a backlight module and a display device are disclosed. The backlight module includes a light source that emits at least a first light; a light conversion film that receives the first light, converts the first light into a second light and emits the second light such that a light emission angle of the backlight module is greater than 120 degrees and a color temperature is less than 15000. The present invention can increase a brightness viewing angle to reach 120 degrees. Besides, the light conversion film has a higher light excitation efficiency, capable of decreasing the color temperature of the backlight module, and enhances the display effect.
    Type: Application
    Filed: July 14, 2017
    Publication date: November 8, 2018
    Applicant: Shenzhen China Star Optoelectronics Technology Co. , Ltd.
    Inventors: Jianyu CHANG, Yung-jui LEE, Yu-chun HSIAO, Sheng-Jer CHANG CHIEN, Zanjia SU
  • Publication number: 20180315903
    Abstract: The present disclosure relates to a LED lamp source and the manufacturing method and the backlight module thereof. The LED lamp source includes a substrate and a LED chip, fluorescent adhesive, and a white reflective layer being fixed on the substrate. The fluorescent adhesive encapsulates the LED chip on the substrate, and the white reflective layer is configured for reflecting light beams emitted from the fluorescent adhesive and being radiated on the white reflective layer. A positive projection of the fluorescent adhesive on the substrate is within the positive projection of the white reflective layer on the substrate.
    Type: Application
    Filed: May 17, 2017
    Publication date: November 1, 2018
    Applicant: Shenzhen China Star Optoelectronics Technology Co., Ltd.
    Inventors: Yong FAN, Yu-chun HSIAO, Sheng-Jer CHANG CHIEN
  • Patent number: 9518819
    Abstract: The present invention discloses an optical testing device includes a base, a holder, and a number of illuminating modules. The base defines a sliding groove extending along a first direction in a top surface thereof. The holder slides along a second direction on the top surface of the base. The interval regulator is connected to the holder. The illuminating modules are slidably received in the sliding groove. Each of the illuminating modules comprises a circuit board and a single lighting element set on the circuit board. The interval regulator drives the holder to slide along a second direction so that a distance between the holder and the illuminating modules is regulated. The first direction is not parallel to the second direction.
    Type: Grant
    Filed: September 23, 2013
    Date of Patent: December 13, 2016
    Inventors: Chao Ning, Sheng-Jer Chang Chien
  • Publication number: 20160341875
    Abstract: A backlight module is disclosed, which comprises a light guide plate having at least one incident light side; a light bar, adjacent to the incident light side; a plurality of quantum dot films, the quantum dot films are arranged between the light bar and the incident light side; wherein the light from the light bar goes through the quantum dot film and irradiates on the incident light side. A LCD device with the backlight module is further disclosed. A plurality of shorter quantum dot films are arranged between the light source and the incident light side of the light guide to replace one longer quantum dot film of the conventional art. And the manufacturing process of the short quantum dot film is simple with low cost, and the film does not have the rupturing issue to improve the safety and reliability of the quantum dot film.
    Type: Application
    Filed: January 21, 2015
    Publication date: November 24, 2016
    Applicant: Shenzhen China Star Optoelectronics Technology Co. Ltd.
    Inventors: Jianyu CHANG, Hu HE, Qian CAO, Yong FAN, Sheng-jer CHANG CHIEN, Zuoyuan QIN
  • Patent number: 9483985
    Abstract: A driving method of the FSC-LCD is disclosed.
    Type: Grant
    Filed: July 1, 2014
    Date of Patent: November 1, 2016
    Assignee: Shenzhen China Star Optoelectronics Technology Co., Ltd
    Inventors: Yong Fan, Chih-tsung Kang, Sheng-Jer Chang Chien, Xiaoping Tan, Jianjun Xie
  • Publication number: 20160275885
    Abstract: A driving method of the FSC-LCD is disclosed.
    Type: Application
    Filed: July 1, 2014
    Publication date: September 22, 2016
    Applicant: Shenzhen China Star Optoelectronics Technology Co., Ltd.
    Inventors: Yong FAN, Chih-tsung KANG, Sheng-Jer CHANG CHIEN, Xiaoping TAN, Jianjun XIE