Light sensitive display
First Claim
Patent Images
1. A liquid crystal device comprising:
- (a) a front electrode layer;
(b) a rear electrode layer comprising a plurality of pixel electrodes;
(c) a liquid crystal material located between said front electrode layer and said rear electrode layer;
(d) changing an electrical potential between said rear electrode layer and said front electrode layer to selectively modify portions of said liquid crystal material to change the polarization of the light incident thereon;
(e) a light guide together with an associated light source located in front of said front electrode layer to provide light thereto;
(f) a plurality of light sensitive elements located within said display;
(g) a processor determining the location of touching of said display by sensing a light inhibited region relative to the ambient surroundings by said light sensitive elements wherein light has been inhibited from reaching said light sensitive elements with an interior region to said inhibited region having greater illumination.
3 Assignments
0 Petitions
Accused Products
Abstract
A light sensitive display.
-
Citations
24 Claims
-
1. A liquid crystal device comprising:
-
(a) a front electrode layer;
(b) a rear electrode layer comprising a plurality of pixel electrodes;
(c) a liquid crystal material located between said front electrode layer and said rear electrode layer;
(d) changing an electrical potential between said rear electrode layer and said front electrode layer to selectively modify portions of said liquid crystal material to change the polarization of the light incident thereon;
(e) a light guide together with an associated light source located in front of said front electrode layer to provide light thereto;
(f) a plurality of light sensitive elements located within said display;
(g) a processor determining the location of touching of said display by sensing a light inhibited region relative to the ambient surroundings by said light sensitive elements wherein light has been inhibited from reaching said light sensitive elements with an interior region to said inhibited region having greater illumination.
-
-
2. A liquid crystal device comprising:
-
(a) a front electrode layer;
(b) a rear electrode layer comprising a plurality of pixel electrodes;
(c) a liquid crystal material located between said front electrode layer and said rear electrode layer;
(d) changing an electrical potential between said rear electrode layer and said front electrode layer to selectively modify portions of said liquid crystal material to change the polarization of the light incident thereon;
(e) a plurality of light sensitive elements located within said display;
(f) a processor determining the location of touching of said display by sensing a light inhibited region relative to the ambient surroundings by said light sensitive elements wherein light has been inhibited from reaching said light sensitive elements with an interior region to said inhibited region having greater illumination.
-
-
3. A light sensitive display comprising:
-
(a) said display selectively causing pixels to provide light;
(b) a plurality of light sensitive elements located within said display;
(c) a processor that receives information from said light sensitive elements and determines regions of said display relative to ambient surroundings where ambient light is inhibited from reaching said light sensitive elements, wherein data from said light sensitive elements is temporally analyzed. - View Dependent Claims (4, 5, 6, 7, 8, 9, 10, 11)
-
-
12. A light sensitive display comprising:
-
(a) said display selectively causing pixels to provide light;
(b) a plurality of light sensitive elements located within said display;
(c) a sampling circuit that reads data from said plurality of light sensitive elements at a rate corresponding with the refresh rate of the corresponding portion of said display, wherein the display includes at least two different refresh rates;
(d) a readout system determining when the position of at least one of said plurality of light sensitive elements that has been inhibited from sensing ambient light, whereby said readout system distinguishes between ambient surroundings and said at least one of said plurality of light sensitive elements said inhibited from sensing said ambient light.
-
-
13. A liquid crystal device comprising:
-
(a) a front electrode layer;
(b) a rear electrode layer comprising a plurality of pixel electrodes;
(c) a liquid crystal material located between said front electrode layer and said rear electrode layer;
(d) changing an electrical potential between said rear electrode layer and said front electrode layer to selectively modify portions of said liquid crystal material to change the polarization of the light incident thereon;
(e) a plurality of light sensitive elements located within said display;
(f) a light guide together with an associated light source located in front of said front electrode layer to provide light thereto, wherein said light has a color spectrum less than ambient light; and
(g) a color filter positioned between said light guide and at least one of said light sensitive elements, wherein said color reduces the transmission of said ambient light to an extent greater than said light from said light source. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20, 21, 22, 23)
-
-
24. The device of claim 98 wherein said color filter has a transmission of said light from said light source greater than 70%.
Specification