Hung J Lin

US Patent:

20190285942, Sep 19, 2019

Filed:

Mar 6, 2019

Appl. No.:

16/294727

Inventors:

- Cupertino CA, US
Edward H Kang - San Francisco CA, US
Jun Qi - San Jose CA, US
Mookyung Son - Cupertino CA, US
Pee Khaim So - San Jose CA, US
Victor H. Yin - Cupertino CA, US
Wei Lv - San Jose CA, US
Wenyong Zhu - San Jose CA, US
Zhenyue Luo - Santa Clara CA, US
Xinyu Zhu - Sunnyvale CA, US
Ling Han - Cupertino CA, US
Hung Sheng Lin - San Jose CA, US

International Classification:

G02F 1/1335
H05K 1/18
H05K 1/02
H05K 3/22
H05K 3/34

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.

US Patent:

20180342193, Nov 29, 2018

Filed:

Sep 11, 2017

Appl. No.:

15/700971

Inventors:

- Cupertino CA, US
Derek K. Shaeffer - Redwood City CA, US
Baris Cagdaser - Sunnyvale CA, US
Hyunwoo Nho - Stanford CA, US
Kingsuk Brahma - Mountain View CA, US
Hung Sheng Lin - San Jose CA, US
Injae Hwang - Minato-ku, JP
Jie Won Ryu - Campbell CA, US
Hyunsoo Kim - Stanford CA, US
Junhua Tan - Santa Clara CA, US
Rui Zhang - Sunnyvale CA, US
Shengkui Gao - San Jose CA, US
Mohammad B. Vahid Far - San Jose CA, US
Jesse A. Richmond - San Francisco CA, US
Sun-Il Chang - San Jose CA, US

International Classification:

G09G 3/20
G09G 3/3233
G09G 3/36

Abstract:

Electronic devices and methods for compensating for noise in a display that includes sensing a current in a sensing channel of the display. Compensating for the noise also includes sensing an observation current from noise in an observation channel of the display and scaling the observation current to generate a scaled observation current. The scaled observation current is subtracted from the sense current to generate a compensated output. The compensated output is used to drive compensation operations of the display based at least in part on the compensated output to reduce effects of the noise.

US Patent:

20180082620, Mar 22, 2018

Filed:

Sep 6, 2017

Appl. No.:

15/697132

Inventors:

- Cupertino CA, US
Hyunwoo Nho - Stanford CA, US
Hung Sheng Lin - San Jose CA, US
Junhua Tan - Santa Clara CA, US
Jie Won Ryu - Campbell CA, US
Kingsuk Brahma - Mountain View CA, US
Jesse A. Richmond - San Francisco CA, US
Mohammad B. Vahid Far - San Jose CA, US
Yafei Bi - Los Altos Hills CA, US

International Classification:

G09G 3/00

Abstract:

Electronic devices and methods pertain to reducing artifacts resulting from a thermal profile preexisting a boot up of an electronic device are disclosed. Scanning driving circuitry of the electronic device scans at least a portion of one or more pixels of an active area of a display using a boot up scan before a boot up sequence of at least a portion of an electronic device completes. The results of the boot up scan are stored in local buffers and transferred to one or more processors upon connection to the one or more processors. The results of the boot up scan cause the one or more processors to modify image data to reduce or eliminate artifacts that may result during boot up due to thermal profiles or other parameters that may cause artifacts.

US Patent:

20160284275, Sep 29, 2016

Filed:

Jan 7, 2016

Appl. No.:

14/990701

Inventors:

- Cupertino CA, US
Yafei Bi - Palo Alto CA, US
Hung Sheng Lin - San Jose CA, US
Mohammad Ali Jangda - San Jose CA, US

International Classification:

G09G 3/32
G09G 3/20

Abstract:

An electronic device that includes a display is provided. The display may have a brightness that is controlled using a series of cascaded digital-to-analog converter circuits. The display may be calibrated at a series of predetermined display brightness settings. For display brightness settings that fall between two consecutive display brightness settings in the series of predetermined display brightness settings, voltage interpolation operations may be performed to obtain the corresponding display brightness settings. Performing voltage interpolations instead of digital brightness setting interpolation helps minimize luminance jumps and unexpected color shifts when adjusting the brightness of the display.