US 7,518,676 B2
Micro corner cube array, method of making the micro corner cube array and reflective type display device
Kiyoshi Minoura, Tenri (Japan); Shun Ueki, Nara (Japan); Yasuhisa Itoh, Tenri (Japan); Ichiroh Ihara, Nishinomiya (Japan); Yutaka Sawayama, Tenri (Japan); and Kohji Taniguchi, Nara (Japan)
Assigned to Sharp Kabushiki Kaisha, Osaka (Japan)
Filed on Mar. 08, 2006, as Appl. No. 11/369,953.
Application 11/369953 is a division of application No. 10/171651, filed on Jun. 17, 2002, granted, now 7,098,976.
Claims priority of application No. 2001-181267 (JP), filed on Jun. 15, 2001; application No. 2001-306052 (JP), filed on Oct. 02, 2001; and application No. 2002-087135 (JP), filed on Mar. 26, 2002.
Prior Publication US 2006/0146237 A1, Jul. 06, 2006
This patent is subject to a terminal disclaimer.
Int. Cl. G02F 1/1335 (2006.01); G02B 5/124 (2006.01)
U.S. Cl. 349—113  [359/530] 4 Claims
OG exemplary drawing
 
1. A micro corner cube array comprising:
a substrate, at least a surface portion of which consists of cubic single crystals,
wherein the micro corner cube array has unevenness including surfaces that have substantially square crystal planes of the cubic single crystals that have a lower etch rate than {111} planes of the cubic single crystals.