Title:
光ガイドを有するディスプレイパネル
Document Type and Number:
Japanese Patent JP2005533268
Kind Code:
A
Abstract:
The display panel 21 comprises a light guide plate 2, a second plate 4 and a movable element 3 between both plates, for locally coupling light out of the light guide plate 2. Voltages applied to electrodes 5, 6 and 25 locally bring the movable element 3 into contact with the light guide plate 2 or the second plate 4. Means for reducing sticking of the movable element 3 to the plates comprise a roughness R 1 at the contact surface 14 of the light guide plate 2 facing the movable element 3, a roughness R 2 at the contact surface 15 of the movable element 3 facing the light guide plate 2, a roughness R 3 at the contact surface 16 of the second plate 4 facing the movable element 3 and a roughness R 4 at the contact surface 17 of the movable element 3 facing the second plate 4. The roughnesses R 1 and R 2 are smaller than at least one of the roughnesses R 3 and R 4. By virtue thereof, sticking is reduced and the display panel 21 requires relatively little energy to be operated.
Inventors:
Marla, Johannes
Coben, Pierre El Haem
Bakken, Joanna M E
Van Holcomb, Herald Dushe Pai
Dyne, Peter
Coben, Pierre El Haem
Bakken, Joanna M E
Van Holcomb, Herald Dushe Pai
Dyne, Peter
Application Number:
JP2003551766A
Publication Date:
November 04, 2005
Filing Date:
November 20, 2002
Export Citation:
Assignee:
Koninklijke Philips Electronics N.V.
International Classes:
F21V8/00; G02B26/02; G09F9/37; G09G3/34; (IPC1-7): G09F9/37
Attorney, Agent or Firm:
Tadahiko Ito
Shinsuke Onuki
Tadashige Ito
Shinsuke Onuki
Tadashige Ito