Abstract A time matrixing method is disclosed for energizing a liquid crystal display having a plurality of liquid crystal display cells with each cell having a plurality of energizable character segments. The method comprises the step of sequentially pulsing the cells with 1st pulses of 1st pulse amplitude sufficient to energize the cells but of 1st pulse length insufficient to energize them. Between each of the sequential 1st pulses each of the cells is pulsed with a 2nd pulse of 2nd pulse waveform insufficient to energize the cells alone or in successive waveform combination with the 1st pulses. Upon command, selective segments are pulsed in time succession with selected 1st pulses applied thereto with 3rd pulses of 3rd pulse amplitude sufficient to energize the selected cell segments and of 3rd pulse length insufficient alone to energize the selected cell segments and insufficient to energize the selected cell segments in successive pulse length combination with the 2nd pulses but sufficient to energize the selected cell segments to a light scattering mode when the 3rd pulses are applied in successive pulse length combination with the selected 1st pulses. Thereafter, application of the 2nd pulses is effective to maintain the selected cell segments in their light scattering mode.
The method of claim 1 wherein said 2nd pulses are simultaneously applied to each of said cells.
Claim 2
Dependent Claim
22 words
The method of claim 1 wherein said 1st pulses are sequentially applied to said cells immediately upon termination of said 2nd pulses.
Claim 3
Dependent Claim
14 words
The metHod of claim 1 wherein said 1st and 2nd pulses are time spaced.
Claim 4
Dependent Claim
27 words
The method of claim 1 wherein said 3rd pulses are applied to said selected segments immediately upon termination of said 1st pulses applied to said selected cells.
Claim 5
Dependent Claim
17 words
The method of claim 1 wherein said 3rd pulses are terminated upon application of said 2nd pulses.
Claim 6
Dependent Claim
16 words
The method of claim 1 wherein said 1st pulse amplitude substantially equals said 2nd pulse amplitude.
Claim 7
Dependent Claim
19 words
The method of claim 1 wherein said 1st pulse amplitude is greater than the amplitude of said 2nd pulses.
Claim 8
Dependent Claim
20 words
The method of claim 1 wherein said 1st pulse amplitude is of the opposite polarity of said 3rd pulse amplitude.
Claim 9
Dependent Claim
16 words
The method of claim 1 wherein said 1st pulse amplitude substantially equals said 3rd pulse amplitude.
Claim 10
Dependent Claim
18 words
The method of claim 1 wherein the amplitude of said 2nd pulses substantially equals said 3rd pulse amplitude.
Claim 11
Dependent Claim
19 words
The method of claim 1 wherein the amplitude of said 2nd pulses is less than said 3rd pulse amplitude.