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The ice cream cone was invented at the St. Louis Worlds Fair by Ernest Hamwi in 1904. His waffle booth was next to an ice cream vendor who ran short of dishes. Hamwi rolled a waffle to hold ice cream and the cone was born.
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| Number | Title | Issue Date |
| 5815228 | Lighting for liquid crystal displays An LCD has a layer of phosphorescent material which emits light at a predetermined frequency and intensity following stimulation by either ambient light or a backlight. In a preferred embodiment, a backlight LED is driven by low duty cycle voltage pulses ... | 09/29/1998 |
| 5627554 | Segmented direct volume display device and method A segmented direct volume display device includes a volume containing a medium, two mutually orthogonal matrices of light guns capable of providing light beams, each matrix outputting light at different wavelengths, a unit for generating images in the vol... | 05/06/1997 |
| 5461397 | Display device with a light shutter front end unit and gas discharge back end unit A display device containing an LCD light shutter front end to modulate light transmittance and a substantially flat gas discharge back end unit containing multiple gas discharge tunnels. The back end unit contains priming means to allow fast ignition of g... | 10/24/1995 |
| 5406414 | Electrochromic rearview mirror for vehicles with constant light transmitting area An electro-optic device including first and second optically transparent elements mounted in spaced relationship to each other to define a gap and each having a front and rear surface. At least one optically transparent interlayer element is sandwiched be... | 04/11/1995 |
| 5402143 | Color fluorescent liquid crystal display An electronic fluorescent device (EFD) is used as the back light source for a black/white LCD. Where the EFD provides red, green and blue light, the LCD displays multi-color or full-color images. The EFD includes a number of cathodes disposed in a vacuum ... | 03/28/1995 |
| 5398038 | Method and apparatus for displaying color images The field image signal for each of the color components of a frame color image signal is formed into a signal of odd number field groups and even number field groups of predetermined color sequence connected together in series, and with the color componen... | 03/14/1995 |
| 5387921 | Scanning back illuminating light source for liquid crystal and other displays A scanning flat back light source for use with light valve devices such as liquid crystal displays. It is formed by an array of parallel fluorescent tubes with fluorescent layers therein. One end of each tube is provided with an electrode and the other en... | 02/07/1995 |
| 5357355 | Double sided thin panel display unit for displaying the same image A double sided panel display unit produces visual images on both side thereof, and comprises a luminescent panel display with a transparent substrate, a liquid crystal shutter sandwiched between two polarizing plates different in angle of polarization at ... | 10/18/1994 |
| 5327153 | Display arrangement A display arrangement for displaying an image for a viewer on the basis of at least two variables for each picture element such as a picture element position and picture element information includes a first and a separate second display element arranged a... | 07/05/1994 |
| 5305464 | Method and apparatus for determining channel to which a receiver is tuned A method and apparatus for identifying the channel to which a receiver is tuned includes a controller having a microprocessor, a ROM for storage of programs, a RAM for storage of data and a data storage and communication device; a controlled panel mounted... | 04/19/1994 |
| 5168269 | Mouse driven remote communication system The present invention provides a system which has a first computer (herein termed the SUPPORT PC) and second remotely located computer (herein termed the CUSTOMER PC). The SUPPORT PC and the CUSTOMER PC each have a display. The image displayed on the CUST... | 12/01/1992 |
| 5166928 | Communication system comprising a communication line monitor for monitoring a communication line A communication system includes plural terminal apparatuses and a communication line monitor connected to a common a communication line. The monitor transmits to each of the terminal apparatuses a request signal for requesting each of the terminal apparat... | 11/24/1992 |
| 5115228 | Shuttered display panel The present invention accomplishes the above objects by employing a display having the capability to emit light and form images viewable from both the front and back of the display. The invention also shutters the images displayed on the front and back of... | 05/19/1992 |
| 4959642 | Instrumentation loop-powered backlit liquid crystal display A loop-powered, backlit liquid crystal display (LCD) responds to a current instrumentation loop for providing a current representative of the value to be measured and an LCD for displaying the measured value. A light-emitting diode (LED) circuit, which in... | 09/25/1990 |
| 4568928 | Fail transparent electro-luminescent display with backup This display system comprises, front to rear, an electro-luminescent information bearing display element which is substantially transparent when not energized, a background element which is dark (opaque) when it is energized and substantially transparent ... | 02/04/1986 |
| 4521771 | Combined static and dynamic image data display system Illuminating light from a plurality of light bulbs is converged into a collimated beam by a coalescing optical fiber bundle to extract images from dynamic and static data sources positioned along the optical axis of the beam. A beam splitter transmits the... | 06/04/1985 |
