Patents by Inventor Pee Khiam So

Pee Khiam So 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).

  • Displays with direct-lit backlight units
    Patent number: 11526051
    Abstract: A display may have a pixel array such as a liquid crystal pixel array. The pixel array may be illuminated with backlight illumination from a direct-lit backlight unit. The backlight unit may include an array of light-emitting diodes on a printed circuit board. The backlight unit may include first, second, and third light spreading layers formed over the array of light-emitting diodes. A color conversion layer may be formed over the first, second, and third light spreading layers. First and second brightness enhancement films may be formed over the color conversion layer.
    Type: Grant
    Filed: August 23, 2021
    Date of Patent: December 13, 2022
    Assignee: Apple Inc.
    Inventors: Daming Xu, Wei Lv, Pee Khiam So, Wenyong Zhu, Rong Liu, Victor H. Yin, Mookyung Son, Jun Qi, Yufeng Yan, Shaofeng Liu, Thomas O. Henry, Suraj P. Gorkhali
  • Displays with Direct-lit Backlight Units
    Publication number: 20220334431
    Abstract: A display may have a pixel array such as a liquid crystal pixel array. The pixel array may be illuminated with backlight illumination from a direct-lit backlight unit. The backlight unit may include an array of light-emitting diodes on a printed circuit board. The backlight unit may include first, second, and third light spreading layers formed over the array of light-emitting diodes. A color conversion layer may be formed over the first, second, and third light spreading layers. First and second brightness enhancement films may be formed over the color conversion layer.
    Type: Application
    Filed: August 23, 2021
    Publication date: October 20, 2022
    Inventors: Daming Xu, Wei Lv, Pee Khiam So, Wenyong Zhu, Rong Liu, Victor H. Yin, Mookyung Son, Jun Qi, Yufeng Yan, Shaofeng Liu, Thomas O. Henry, Suraj P. Gorkhali
  • Displays with direct-lit backlight units
    Patent number: 11333924
    Abstract: A display may have a pixel array such as a liquid crystal pixel array. The pixel array may be illuminated with backlight illumination from a direct-lit backlight unit. The backlight unit may include an array of light-emitting diodes on a printed circuit board. The backlight unit may include first, second, and third light spreading layers formed over the array of light-emitting diodes. A color conversion layer may be formed over the first, second, and third light spreading layers. First and second brightness enhancement films may be formed over the color conversion layer.
    Type: Grant
    Filed: August 23, 2021
    Date of Patent: May 17, 2022
    Assignee: Apple Inc.
    Inventors: Wei Lv, Pee Khiam So, Wenyong Zhu, Daming Xu, Victor H. Yin, Mookyung Son, Ryan A. Zimmerman, Ziruo Hong, Rong Liu, Jun Qi, Po Hsun Chen, Zhenbin Ge, Fei Yan, Wei He
  • Displays with direct-lit backlight units
    Patent number: 10901260
    Abstract: A display may have a pixel array such as a liquid crystal pixel array. The pixel array may be illuminated with backlight illumination from a backlight unit. The backlight unit may include a printed circuit board, a plurality of light-emitting diodes mounted on the printed circuit board, at least one light spreading layer formed over the printed circuit board that spreads light received from the plurality of light-emitting diodes, a partially reflective layer formed over the at least one light spreading layer, a color conversion layer formed over the partially reflective layer, a collimating layer formed over the color conversion layer, a brightness enhancement film formed over the collimating layer, and a diffuser formed over the brightness enhancement film. The at least one light spreading layer may include two light spreading layers with elongated protrusions that are rotated relative to each other.
    Type: Grant
    Filed: March 6, 2019
    Date of Patent: January 26, 2021
    Assignee: Apple Inc.
    Inventors: Rong Liu, Jun Qi, Victor H. Yin, Wei Lv, Joshua A. Spechler, Yu P. Sun, Suraj P. Gorkhali, Daming Xu, Edward H. Kang, Wenyong Zhu, Ziruo Hong, Xinyu Zhu, Ling Han, Mookyung Son, Pee Khiam So, Janos C. Keresztes, Chenhua You, Zhenyue Luo, Heesang Suh, Juan He, Hung Sheng Lin
  • Displays with Direct-lit Backlight Units
    Publication number: 20190285944
    Abstract: A display may have a pixel array such as a liquid crystal pixel array. The pixel array may be illuminated with backlight illumination from a backlight unit. The backlight unit may include a printed circuit board, a plurality of light-emitting diodes mounted on the printed circuit board, at least one light spreading layer formed over the printed circuit board that spreads light received from the plurality of light-emitting diodes, a partially reflective layer formed over the at least one light spreading layer, a color conversion layer formed over the partially reflective layer, a collimating layer formed over the color conversion layer, a brightness enhancement film formed over the collimating layer, and a diffuser formed over the brightness enhancement film. The at least one light spreading layer may include two light spreading layers with elongated protrusions that are rotated relative to each other.
    Type: Application
    Filed: March 6, 2019
    Publication date: September 19, 2019
    Inventors: Rong Liu, Jun Qi, Victor H. Yin, Wei Lv, Joshua A. Spechler, Yu P. Sun, Suraj P. Gorkhali, Daming Xu, Edward H. Kang, Wenyong Zhu, Ziruo Hong, Xinyu Zhu, Ling Han, Mookyung Son, Pee Khiam So, Janos C. Keresztes, Chenhua You, Zhenyue Luo, Heesang Suh, Juan He, Hung Sheng Lin