Patent ID: 7746294

Claim:
A transflective liquid crystal display comprising: a top and a bottom substrate having a liquid crystal layer sandwiched between the top and the bottom substrate; plural pixels, each one of the plural pixels comprising: at least three reflective sub-pixels for displaying a reflective image, wherein each one of the at least three reflective sub-pixels having a reflective layer on an inner surface of the bottom substrate to reflect an incident light back to a viewer; and a transmissive sub-pixel for displaying a transmissive image; at least one electronic circuit for driving the at least three reflective sub-pixels and the transmissive sub-pixel of each one of the plural pixels, the at least one electronic circuit comprises: plural first and second scan electrodes; plural first and second data electrodes, wherein one of the plural first scan electrodes and one of the plural first data electrode connect each one of the at least three reflective sub-pixels to the at least one electronic circuit and one of the plural second scan electrodes and one of the plural second data electrodes connect each one of the transmissive sub-pixel to the at least one electronic circuit; and at least four pixel electronic circuits connected with the plural first and second scan electrodes and the plural first and second data electrodes for driving the at least three reflective sub-pixel and the transmissive sub-pixel, respectively, for each of the plural pixels, at least three of the pixel electronic circuits are each located in a region of a corresponding one of the at least three reflective sub-pixel and the transmissive sub-pixel, at least three of the at least four pixel electronic circuits are each located below the reflective layer of a corresponding one of the at least three reflective sub-pixels to increase an aperture ratio of the at least three reflective sub-pixel to provide brighter reflective image for the reflective modes; a backlight below the transmissive sub-pixels; and a timing control unit connected with the at least one electronic circuit for converting and distributing an incoming video data to the plural pixels and controlling the backlight to synchronize the reflective and transmissive display images.