Viewing-angle evaluation method for LCDs with gray-scale images

1993 ◽  
Vol 1 (4) ◽  
pp. 405 ◽  
Author(s):  
Junko Hirata ◽  
Yuzo Hisatake ◽  
Masahito Ishikawa ◽  
Masato Shoji ◽  
Yasuharu Tanaka ◽  
...  
Keyword(s):  
Evaluation Method ◽  
Viewing Angle ◽  
Gray Scale

Viewing-angle evaluation method of color shift for LCDs with gray-scale images

1994 ◽  
Vol 2 (4) ◽  
pp. 169 ◽  
Author(s):  
Masahito Ishikawa ◽  
Makiko Sato ◽  
Yuzo Hisatake ◽  
Hitoshi Hatoh
Keyword(s):  
Evaluation Method ◽  
Viewing Angle ◽  
Gray Scale ◽  
Color Shift

Research on the Choice of District Resolves Solution of Chinese Railway Reform and Restructuring

2014 ◽  
Vol 644-650 ◽  
pp. 5864-5867
Author(s):  
Zhao Hui
Keyword(s):  
Cluster Analysis ◽  
Hierarchical Cluster Analysis ◽  
Evaluation Method ◽  
Comprehensive Evaluation ◽  
Hierarchical Cluster ◽  
Gray Scale ◽  
Comprehensive Evaluation Method ◽  
Balance Scale ◽  
Pros And Cons ◽  
Division Scheme

This paper, using the hierarchical cluster analysis and the gray scale comprehensive evaluation method, considering operating balance scale of regional companies, the proportion of inter-regional exchange of goods, compares the pros and cons of each division scheme and we find that seven regional companies is the most suitable for railway development.

48.2: Advanced VA Mode with Fast Gray Scale Response and Wide Viewing Angle in a Bend Liquid Crystal Configuration

2010 ◽  
Vol 41 (1) ◽  
pp. 721 ◽  
Author(s):  
Takehisa Sakurai ◽  
Mitsuhiro Murata ◽  
Toshihiro Matsumoto ◽  
Tadashi Ohtake ◽  
Shoichi Ishihara ◽  
...  
Keyword(s):  
Liquid Crystal ◽  
Viewing Angle ◽  
Gray Scale ◽  
Scale Response ◽  
Wide Viewing Angle

A complementary TN-LCD with wide-viewing-angle gray scale

1994 ◽  
Vol 2 (1) ◽  
pp. 31 ◽  
Author(s):  
Ken Sumiyoshi ◽  
Ken-ichi Takatori ◽  
Yoshihiko Hirai ◽  
Setsuo Kaneko
Keyword(s):  
Viewing Angle ◽  
Gray Scale ◽  
Wide Viewing Angle

IMPROVEMENT OF THE VIEWING ANGLE FOR DISPLAY DEVICES WITH GRAY SCALE

1995 ◽  
Vol 09 (18n19) ◽  
pp. 2585-2595 ◽  
Author(s):  
PHILIP J. BOS
Keyword(s):  
Liquid Crystal ◽  
Wide Angle ◽  
Optical Effect ◽  
Viewing Angle ◽  
Gray Scale ◽  
Display Devices ◽  
Electro Optical Effect ◽  
Angle Of View

A liquid crystal electro-optical effect with an optically “self-compensating” director configuration is proposed to provide a device that has a wide angle of view at all gray levels. Calculations and data are presented to show the beneficial results of coupling a tunable birefringence L.C. device that has reverse pretilt alignment with a negative birefringence compensator plate.

P-36: A New Viewing-Angle Evaluation Method for LCDs with Image Color Difference

2005 ◽  
Vol 36 (1) ◽  
pp. 406 ◽  
Author(s):  
Keiichi Miyazaki ◽  
Makoto Yamada ◽  
Yutaro Mitsumori ◽  
Isao Fujiwara ◽  
Masamitsu Ishida
Keyword(s):  
Evaluation Method ◽  
Color Difference ◽  
Viewing Angle

Evaluation method for imaging plate resolution by means of phase contrast transfer function

1995 ◽  
Vol 53 ◽  
pp. 662-663 ◽  
Author(s):  
T. Oikawa ◽  
H. Kosugi ◽  
F. Hosokawa ◽  
D. Shindo ◽  
M. Kersker
Keyword(s):  
Transfer Function ◽  
Phase Contrast ◽  
Evaluation Method ◽  
Amorphous Film ◽  
Imaging Plate ◽  
X Rays ◽  
Special Shape ◽  
Contrast Transfer Function ◽  
Contrast Image ◽  
Specimen Shape

Evaluation of the resolution of the Imaging Plate (IP) has been attempted by some methods. An evaluation method for IP resolution, which is not influenced by hard X-rays at higher accelerating voltages, was proposed previously by the present authors. This method, however, requires truoblesome experimental preperations partly because specially synthesized hematite was used as a specimen, and partly because a special shape of the specimen was used as a standard image. In this paper, a convenient evaluation method which is not infuenced by the specimen shape and image direction, is newly proposed. In this method, phase contrast images of thin amorphous film are used.Several diffraction rings are obtained by the Fourier transformation of a phase contrast image of thin amorphous film, taken at a large under focus. The rings show the spatial-frequency spectrum corresponding to the phase contrast transfer function (PCTF). The envelope function is obtained by connecting the peak intensities of the rings. The evelope function is offten used for evaluation of the instrument, because the function shows the performance of the electron microscope (EM).

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