TIR-MODULATED WIDE VIEWING ANGLE DISPLAY
First Claim
1. A Total Internal Reflection (TIR) display, comprising:
- a transparent TIR sheet, wherein the transparent TIR sheet further comprises a planar surface and a non-planar surface;
a transparent front electrode;
a rear electrode positioned across the transparent electrode to form a gap therebetween;
a first plurality of electrophoretically mobile particles disposed in the gap, the first plurality of particles having a first charge polarity, a first color and a first mobility; and
a second plurality of electrophoretically mobile particles disposed in the gap, the second plurality of particles having a second charge polarity, a second color and a second mobility.
3 Assignments
0 Petitions
Accused Products
Abstract
Improvements and modifications are provided in the type of frustrated total internal reflection (TIR) systems described in U.S. Pat. Nos. 6,885,496; 6,891,658; 7,286,280; 7,760,417 and 8,040,591. The improvements and modifications include various methods to improve display operation of hemispherical beaded front plane TIR systems such as (a) inhibit or prevent the undesired non-uniform distribution and lateral migration of charged, electrophoretically mobile, TIR frustrating particles by encapsulating or tethering the particles to the beaded front plane surface; (b) inhibit or prevent the settling of the TIR frustrating particles such as modifying the viscosity of the low refractive index medium; and (c) inhibit or prevent the non-uniformity of the applied electric field during display operation such as using a conforming rear electrode.
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Citations
25 Claims
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1. A Total Internal Reflection (TIR) display, comprising:
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a transparent TIR sheet, wherein the transparent TIR sheet further comprises a planar surface and a non-planar surface; a transparent front electrode; a rear electrode positioned across the transparent electrode to form a gap therebetween; a first plurality of electrophoretically mobile particles disposed in the gap, the first plurality of particles having a first charge polarity, a first color and a first mobility; and a second plurality of electrophoretically mobile particles disposed in the gap, the second plurality of particles having a second charge polarity, a second color and a second mobility. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A method to provide a Total Internal Reflection (TIR) display, comprising:
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disposing a first plurality of electrophoretically mobile particles in a gap between a front electrode and a rear electrode of the TIR display, the first plurality of particles having a first charge polarity, a first color and a first mobility; disposition a second plurality of electrophoretically mobile particles in the gap between the front electrode and the rear electrode, the second plurality of particles having a second charge polarity, a second color and a second mobility; and biasing the front electrode relative to the rear electrode to cause a movement of the first and the second plurality of electrophoretically mobile particles from the front electrode to the rear electrode; wherein the movement of the first plurality of electrophoretically mobile particles from the front electrode to the rear electrode is faster relative to the movement of the plurality of second electrophoretically mobile particles from the front electrode to the rear electrode. - View Dependent Claims (13, 14, 15, 16, 17, 18)
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19. A non-transient, machine readable storage medium including machine readable instructions, when executed, to cause one or more processors to perform a method comprising:
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Identifying a first plurality of electrophoretically mobile particles disposed in a gap between a front electrode and a rear electrode of the TIR display, the first plurality of particles having a first charge polarity, a first color and a first mobility; Identifying a second plurality of electrophoretically mobile particles disposed in the gap between the front electrode and the rear electrode, the second plurality of particles having a second charge polarity, a second color and a second mobility; and biasing the front electrode relative to the rear electrode to cause a movement of the first and the second plurality of electrophoretically mobile particles from the front electrode to the rear electrode; wherein the movement of the first plurality of electrophoretically mobile particles from the front electrode to the rear electrode is faster relative to the movement of the plurality of second electrophoretically mobile particles from the front electrode to the rear electrode. - View Dependent Claims (20, 21, 22, 23, 24, 25)
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Specification