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Driving method of driving a liquid crystal display element
http://hdl.handle.net/2289/3892
Title: Driving method of driving a liquid crystal display element<br/><br/>Authors: Kuwata, T.; Ruckmongathan, T.N.; Nakagawa, Y.; Koh, H.; Hasebe, H.; Yamashita, Takashi; Nagano, Hideyuki; Ohnishi, T.A method of driving display element and its driving device
http://hdl.handle.net/2289/3891
Title: A method of driving display element and its driving device<br/><br/>Authors: Kuwata, Takeshi; Ruckmongathan, T.N.; Nakagawa, Y.; Koh, H.; Nakazawa, Akira<br/><br/>Abstract: A method of driving a display element wherein a light transmittance of a pixel selected by a row electrode and a column electrode changes in accordance with a difference between voltages applied on the row electrode and the column electrode, which satisfies the following conditions: (1) row electrodes are divided into a plurality of row electrode subgroups composed of L row electrodes which are selected simultaneously wherein L is an integer greater than 1: (2) signals [ alpha mn] where alpha mn is an element of a m-th row component and a n-th column component of an orthogonal matrix, m is an integer of 1 through L and n is a suffix showing that the n-th column component of the orthogonal matrix corresponds to a n-th selection signal in a single display cycle are applied on the selected row electrodes as row electrode signals: (3) a signal into which an image signal corresponding to positions of the selected row electrodes on a display panel is converted by the orthogonal function is applied on a column electrode as a column electrode signal: and (4) a first voltage which is in proportion to a second voltage Vd expressed by the following equation is substantially applied to a column voltage to provide a predetermined gray shade level d(j.L+i),k which is a value between 1 showing an off state and -1 showing an on state in accordance with a degree of gray shade with respect to a pixel of a k-th column where k is an integer and an i-th row where i is an integer of 1 through L of a j-th row electrode subgroup where j is an integer: <MATH> where <MATH> where <MATH> indicates a summing operation of a content of [ ] with respect to i=0 through L and alpha in' indicates an element of an i-th row component and a n-th column component of an orthogonal matrix wherein a 0-th row component is added to [ alpha mn].System and method to drive display matrix
http://hdl.handle.net/2289/3847
Title: System and method to drive display matrix<br/><br/>Authors: Ruckmongathan, T.N.<br/><br/>Abstract: A system and method to drive display matrix, comprising: a voltage level generator to provide predetermined voltages, a row voltage selector to select a group of voltages from the voltage level generator depending on select vector to drive row drivers, a column voltage selector to select a group of voltages from the voltage level generator depending on data vector to drive column drivers, and a controller to generate control signals to scan the display as dictated by addressing technique.