Computer graphics processing and selective visual display system – Plural physical display element control system – Display elements arranged in matrix
Patent
1994-05-17
1995-11-28
Weldon, Ulysses
Computer graphics processing and selective visual display system
Plural physical display element control system
Display elements arranged in matrix
345 85, 345 90, 345205, G02F 1133
Patent
active
054712254
ABSTRACT:
An improved liquid crystal display (LCD) is provided having a static random access memory located within each liquid crystal control cell and between each display electrode and corresponding bit and word lines. The memory cell, or storage cell, includes a pass-gate transistor which, upon activation via word line, forwards bit line video data to a memory circuit, such as a latching circuit, placed between the pass-gate transistor and the display electrode. The latching circuit may consist of two thin-film transistors connected as cross-coupled inverters for latching video data upon the display electrode for virtually an indefinite period of time or until the pass-gate transistor is again activated. By utilizing a storage cell with buffer capability adjacent each display electrode, problems associated with large data line current can be minimized. Moreover, the static memory can rid the host processor of having to continuously refresh the LCD active matrix.
REFERENCES:
patent: 3564135 (1971-02-01), Weimer
patent: 4042854 (1977-08-01), Luo et al.
patent: 4430648 (1984-02-01), Togashi et al.
patent: 4432610 (1984-02-01), Kobayashi et al.
patent: 4677314 (1987-06-01), Shirato et al.
patent: 4870298 (1989-09-01), Telefus
patent: 4904989 (1990-02-01), Matsui et al.
patent: 5079606 (1992-01-01), Yamamura et al.
patent: 5086347 (1992-02-01), Ukai et al.
T. A. Larsen and D. H. Martin, Liquid Crystal Display with Built-in Refresh, IBM, vol. 23, No. 6, Nov. 1980, pp. 2559-2560.
Dell USA L.P.
Huffman James
McCombs David
Weldon Ulysses
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