US 6,982,820 B2
Color changeable pixel
Hsiung-Kuang Tsai, Taipei (Taiwan)
Assigned to Prime View International Co., Ltd., (Taiwan)
Filed on Sep. 26, 2003, as Appl. No. 10/670,734.
Prior Publication US 2005/0068605 A1, Mar. 31, 2005
Int. Cl. G02B 26/00 (2006.01)
U.S. Cl. 359—290 11 Claims
OG exemplary drawing
 
1. A color changeable pixel, comprising:
a first plate;
an operating plate, wherein the operating plate is settled in parallel with the first plate;
a second plate, the second plate settled between the first plate and the operating plate;
at least one first post located between the operating plate and the second plate, wherein the second plate is directly connected to the first post; and
at least one second post located between the first plate and the second plate, wherein a cavity is formed between the first plate and the second plate, and an incident light from one side of the first plate is modulated and a reflected light of only specific frequency is reflected by the second plate, and the second plate directly contacts and shifts along the first post towards the operating plate and directly contacts and shifts along the second post towards the first plate by a voltage added on the operating plate so as to change the distance of the cavity, thereby changing the frequency of the reflected light.