Zobrazeno 1 - 10
of 20
pro vyhledávání: '"Po Hung Yao"'
Autor:
Po Hung Yao, Cheng-Huan Chen, Daniel Wu, Wei Chung Chao, Wen Hsun Yang, Jian Jhih Lin, Zih Ying Su
Publikováno v:
SID Symposium Digest of Technical Papers. 46:1729-1732
Publikováno v:
SID Symposium Digest of Technical Papers. 44:824-827
A pixelized backlight with polarization recycling had been previously developed and demonstrated with significant efficiency improvement especially due to elimination of color filter. However, the volume is bulky and the symmetric LED layout makes it
Publikováno v:
Microelectronic Engineering. 98:117-120
This work is dedicated to the fabrication of metallic/dielectric double layer gratings on polymeric films for wire grid polarizer (WGP) to obtain designed optical performance as well as better process tolerance. The fabrication process was based on t
Autor:
Po Hung Yao, Yen Pei Wu, Chin Wei Sher, Meng Chi Huang, Cheng-Huan Chen, Chien-Chung Fu, Chun Ruei Yang
Publikováno v:
SID Symposium Digest of Technical Papers. 43:749-752
A color-filterless backlight utilizing reflective and refractive element in the light guide plate for light extraction and color pixel separation has been integrated with polarization recycling scheme based on wire grid polarizer and quarter wave pla
Publikováno v:
SID Symposium Digest of Technical Papers. 42:785-788
On the purpose of improving the transmittance of LCD panels, the study of polarized illumination has been emphasized as one of the urgent topics to reduce the energy loss at the present absorption-type polarizer of LCD cells. The polarization-selecti
Autor:
Chieh Hui Chen, Po Hung Yao, Fong Zhi Chen, Wei Yao Hsu, Spencer Lee, Cheng-Huan Chen, Yuan Chieh Cheng
Publikováno v:
SID Symposium Digest of Technical Papers. 42:432-435
A RGB lasers illuminated three-panel LCoS projector has been developed to demonstrate the viability of a double-side microlens array as a diffractive beam shaper. By oscillating the beam shaper, both the uniformity and speckle pattern were significan
Publikováno v:
Key Engineering Materials. :148-151
A wide angle light-deflected lens combining collimation and total internal reflection (TIR) optical mechanics for LED package is proposed. Utilizing angle-dividing method the angle of emitting distribution of LED chip was cut into several angular zon
Publikováno v:
Key Engineering Materials. :143-147
Laser light source is a potential illumination light source for non-emissive display applications, especially for liquid crystal projection displays, due to its requirement of low etendue source and highly polarized light. In order to make a conversi
Publikováno v:
Optics express. 20(5)
Efficiency of liquid crystal displays highly depends on the amount of polarized light emerging from the backlight module. In this paper, a backlight architecture using a nanoimprint wire grid polarizer for polarization recycling is proposed and studi
Autor:
Chien Li Wu, Po Chou Chen, Chien-Chung Fu, Chi Jui Chung, Cheng Kuo Sung, Norio Sugiura, Po Hung Yao, Po Chun Lin, Folcon Lin, Cheng-Huan Chen, Meng Chi Huang, Chun Ruei Yang, Han Ping Yang
Publikováno v:
SPIE Proceedings.
The major efficiency loss in current liquid crystal displays(LCD) are the absorption in polarizers and color filter, and both can be resolved with decent backlight design which takes light polarization and color separation into consideration. Those i