scholarly journals High Resolution Computer-Generated Rainbow Hologram

2018 ◽  
Vol 8 (10) ◽  
pp. 1955 ◽  
Author(s):  
Takeshi Yamaguchi ◽  
Hiroshi Yoshikawa
Keyword(s):  
Fringe Pattern ◽  
Viewing Angle ◽  
Efficient Computation ◽  
Calculation Algorithm ◽  
Output Device ◽  
Full Color ◽  
Wide Viewing Angle ◽  
Rainbow Hologram ◽  
Hidden Surface Removal ◽  
Pixel Pitch

We have developed an output device for a computer-generated hologram (CGH) named a fringe printer, which can output a 0.35- μ m plane-type hologram. We also proposed several CGH with a fringe printer. A computer-generated rainbow hologram (CGRH), which can reconstruct a full color 3D image, is one of our proposed CGH. The resolution of CGRH becomes huge (over 50 Gpixels) due to improvement of the fringe printer. In the calculation, it is difficult to calculate the whole fringe pattern of CGRH at the same time by a general PC. Furthermore, since the fine pixel pitch provides a wide viewing angle in CGRH, object data, which are used in fringe calculation, should be created from many viewpoints to provide a proper hidden surface removal process. The fringe pattern of CGRH is calculated in each horizontal block. Therefore, the object data from several view points should be organized for efficient computation. This paper describes the calculation algorithm for huge resolution CGRH and its output results.

Full-color computer-generated rainbow hologram with enlarged viewing angle

2001 ◽  
Author(s):  
Hiroshi Yoshikawa ◽  
Akihito Kagotani
Keyword(s):  
Viewing Angle ◽  
Full Color ◽  
Rainbow Hologram ◽  
Color Computer

Wide-viewing-angle full-color TFT-LCDs

1993 ◽  
Vol 1 (1) ◽  
pp. 63 ◽  
Author(s):  
Hidefumi Yoshida ◽  
Kimiaki Nakamura ◽  
Makoto Ohashi ◽  
Ikuo Tomita ◽  
Masahiro Okabe
Keyword(s):  
Viewing Angle ◽  
Full Color ◽  
Wide Viewing Angle

Design of Light-Diffusing Film for Full-Color Reflective Liquid Crystal Display with High Contrast and Wide Viewing Angle

2004 ◽  
Vol 43 (9A) ◽  
pp. 6152-6157 ◽  
Author(s):  
Takahiro Ishinabe ◽  
Takanori Nakayama ◽  
Tetsuya Miyashita ◽  
Tatsuo Uchida
Keyword(s):  
Liquid Crystal ◽  
Liquid Crystal Display ◽  
High Contrast ◽  
Viewing Angle ◽  
Full Color ◽  
Wide Viewing Angle

A new method of making real-color rainbow hologram with wide viewing angle

2014 ◽  
Vol 40 (3) ◽  
pp. 205-208
Author(s):  
甘亮勤 GAN Liangqin ◽  
曾胜财 ZENG Shengcai ◽  
杨上供 YANG Shanggong
Keyword(s):  
New Method ◽  
Viewing Angle ◽  
Wide Viewing Angle ◽  
Rainbow Hologram

Optical design of R-OCB mode full-color reflective LCD with wide viewing angle and high contrast

1998 ◽  
Vol 6 (4) ◽  
pp. 243 ◽  
Author(s):  
Takahiro Ishinabe ◽  
Tetsuya Miyashita ◽  
Tatsuo Uchida
Keyword(s):  
Optical Design ◽  
High Contrast ◽  
Viewing Angle ◽  
Full Color ◽  
Wide Viewing Angle

Full Color Computer-Generated Rainbow Hologram with Enlarged Viewing Angle

2002 ◽  
Vol 9 (6) ◽  
pp. 251-254 ◽  
Author(s):  
Hiroshi Yoshikawa ◽  
Akihito Kagotani
Keyword(s):  
Viewing Angle ◽  
Full Color ◽  
Rainbow Hologram ◽  
Color Computer

A Bright Reflective Full-Color Liquid Crystal Display Using Optically Compensated Bend Cell with High Contrast Ratio and Wide Viewing Angle Range

2004 ◽  
Vol 43 (9A) ◽  
pp. 6158-6161 ◽  
Author(s):  
Takahiro Ishinabe ◽  
Tetsuya Miyashita ◽  
Tatsuo Uchida ◽  
Makoto Suzuki
Keyword(s):  
Liquid Crystal ◽  
Liquid Crystal Display ◽  
Contrast Ratio ◽  
High Contrast ◽  
Viewing Angle ◽  
Full Color ◽  
Wide Viewing Angle

P-76: Optical Design of R-OCB Mode Full-Color Reflective LCD with Wide Viewing Angle and High Contrast

1998 ◽  
Vol 29 (1) ◽  
pp. 774 ◽  
Author(s):  
T. Ishinabe ◽  
T. Miyashita ◽  
T. Uchida
Keyword(s):  
Optical Design ◽  
High Contrast ◽  
Viewing Angle ◽  
Full Color ◽  
Wide Viewing Angle

Reflective Liquid-Crystal Displays

MRS Bulletin ◽  
2002 ◽  
Vol 27 (11) ◽  
pp. 876-879 ◽  
Author(s):  
Tatsuo Uchida ◽  
Takahiro Ishinabe
Keyword(s):  
Liquid Crystal ◽  
Information Systems ◽  
High Performance ◽  
Liquid Crystal Displays ◽  
Viewing Angle ◽  
Active Matrix ◽  
Full Color ◽  
Wide Viewing Angle ◽  
Other Information ◽  
Active Matrix Displays

AbstractReflective full-color liquid-crystal displays (LCDs) are attracting a great deal of interest as portable information systems because of their extremely low power consumption and light weight; also, the color does not wash out in outdoor use. In this article, reflective LCDs are classified into three types. Among them, the diffusing-reflector type and the front-diffusing film type are suitable for high-quality active-matrix displays. Diffusing-reflector LCDs have the advantage of uniform reflectance at the desired viewing angle due to the design of the surface microstructure of the reflector. Front-diffusing film LCDs using metallic mirrors and an optimally designed light-controlling film enable high contrast in a wide viewing-angle range and uniform reflectance with no blurring. Thus, both types have a high potential for achieving excellent color quality comparable to printed paper. In the near future, these reflective LCDs will likely be applied not only to portable systems, but also to high-performance wireless monitor displays and various other information systems.

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