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Class Information
Number: 40/448
Name: Card, picture, or sign exhibiting > Changing exhibitor > Alphanumeric (monogram) device > Liquid crystal
Description: Exhibitor wherein the elements of the matrix are liquid crystal devices, the activation of which causes its color to change from that of its surrounding environment, thus presenting the number or letter desired.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7561216 |
Operating device for an electrical appliance and electrical appliance having such an operating device |
Jul. 14, 2009 |
| 7551088 |
Electronic vehicle tag |
Jun. 23, 2009 |
| 7174664 |
Hand-held signaling device |
Feb. 13, 2007 |
| 7167167 |
Write head for a display tag having a liquid crystal display |
Jan. 23, 2007 |
| 6997592 |
Advertising apparatus using a light switching device |
Feb. 14, 2006 |
| 6950088 |
Synchronizing optical scan and electrical addressing of a single-panel, scrolling color LCD system |
Sep. 27, 2005 |
| 6900792 |
Housing for flat panel displays and method for receiving flat panel displays |
May. 31, 2005 |
| 6813853 |
Sectional display system |
Nov. 9, 2004 |
| 6588132 |
Light emitting display device |
Jul. 8, 2003 |
| 6558225 |
Electronic figurines |
May. 6, 2003 |
| 6314669 |
Sectional display system |
Nov. 13, 2001 |
| 6311419 |
Dedicated mammogram viewer |
Nov. 6, 2001 |
| 6279253 |
Self-masking transparency viewing apparatus |
Aug. 28, 2001 |
| 6163993 |
Simulated rock numerical display device |
Dec. 26, 2000 |
| 6121988 |
Printed wiring board and its manufacturing method, and electronic apparatus |
Sep. 19, 2000 |
| 6119380 |
Transparency viewing apparatus |
Sep. 19, 2000 |
| 6101750 |
Portable message sign |
Aug. 15, 2000 |
| 6101749 |
Transparency viewing apparatus |
Aug. 15, 2000 |
| 5715622 |
Shelf mounted electronic display modules |
Feb. 10, 1998 |
| 5664353 |
Method and arrangement for optically representing information |
Sep. 9, 1997 |
| 5589298 |
Electrochemical devices comprising lithium nitride-metal compounds in at least one of a pair of electrodes |
Dec. 31, 1996 |
| 5357355 |
Double sided thin panel display unit for displaying the same image |
Oct. 18, 1994 |
| 5251393 |
Luminous display device for electric equipments |
Oct. 12, 1993 |
| 5202677 |
Display apparatus using thermochromic material |
Apr. 13, 1993 |
| 5153760 |
Oscillating photovoltaic optical shutter for reflective display |
Oct. 6, 1992 |
| 5075993 |
Color display apparatus |
Dec. 31, 1991 |
| 4932147 |
Method of forming an apparatus for displaying dynamic art apparatus embodiments |
Jun. 12, 1990 |
| 4926572 |
Medication timing device |
May. 22, 1990 |
| 4920991 |
Thermochromic artificial nail |
May. 1, 1990 |
| 4893903 |
Flashing advisory sign |
Jan. 16, 1990 |
| 4799771 |
Liquid crystal display with stopper pins in guide means |
Jan. 24, 1989 |
| 4785564 |
Electronic notepad |
Nov. 22, 1988 |
| 4768300 |
Illuminated information display |
Sep. 6, 1988 |
| 4756105 |
Display means comprising contacting display element |
Jul. 12, 1988 |
| 4729067 |
Light diffusing device |
Mar. 1, 1988 |
| 4729068 |
Light diffusing device |
Mar. 1, 1988 |
| 4674210 |
Liquid crystal display |
Jun. 23, 1987 |
| 4648690 |
Light diffusing device |
Mar. 10, 1987 |
| 4642710 |
Animated display controlled by an audio device |
Feb. 10, 1987 |
| 4616903 |
Encapsulated liquid crystal and method |
Oct. 14, 1986 |
| 4589659 |
Foldable liquid crystal display unit |
May. 20, 1986 |
| 4584786 |
Information panel assembly |
Apr. 29, 1986 |
| 4573766 |
LED Staggered back lighting panel for LCD module |
Mar. 4, 1986 |
| 4568080 |
Display apparatus |
Feb. 4, 1986 |
| 4514920 |
Display module |
May. 7, 1985 |
| 4500880 |
Real time, computer-driven retail pricing display system |
Feb. 19, 1985 |
| 4483072 |
Machine with liquid crystal display |
Nov. 20, 1984 |
| 4455185 |
Method of manufacturing liquid crystal display element |
Jun. 19, 1984 |
| 4403216 |
Display |
Sep. 6, 1983 |
| 4231034 |
Display device for illustrating variable and fixed information |
Oct. 28, 1980 |
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