Electrothermal matrix addressable liquid crystal display

Details Electrothermal matrix addressable liquid crystal display Electrothermal matrix addressable liquid crystal display

G - Physics

02

F

345/8

G02F 1/133 (2006.01) G02F 1/139 (2006.01)

Patent

CA 1206568

ELECTROTHERMAL MATRIX ADDRESSABLE LIQUID CRYSTAL DISPLAY Abstract A row and column matrix of strip electrodes is utilized for switching bistable liquid crystal display cells from the vertical state to the horizontal state via resistive heating by applying an electric current of sufficient magnitude and duration to selected electrodes. Resistive heating causes the liquid crystal to undergo a phase transition from the nematic mesophase to an isotropic phase. Extinction of the current permits the liquid crystal to cool preferentially into the horizontal state of the nematic mesophase. Horizontal-to-vertical state switching is performed by conventional electric field effect techniques. (Fig. 6)

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