Patent ID: 9606383
Date: 2017-03-28
CPC Classifications: G02F,G09G

Claim:
1. A transflective image display apparatus comprising: a transmissive polarizing plate; a color filter disposed below the transmissive polarizing plate, the color filter comprising a white color filter and at least two of a red color filter, a green color filter, and a blue color filter; a liquid crystal display panel disposed below the color filter; an electrical polarization control unit disposed below the liquid crystal display panel; a reflective polarizing plate disposed below the electrical polarization control unit; a backlight unit disposed below the reflective polarizing plate, the backlight unit comprising a white light source and a light source configured to emit light corresponding to at least one of the red color filter, the green color filter, and the blue color filter which the color filter does not comprise; and a controller configured to control the liquid crystal display panel, the electrical polarization control unit, and the backlight unit periodically in three states according to a predetermined condition, wherein the controller is configured to adjust a duty ratio of a driving voltage of the three states according to the predetermined condition, and wherein, in each of the three states, the controller applies a non-zero driving voltage to operate one of the electrical polarization control unit and the backlight unit such that the driving voltage of the three states is a non-zero voltage for each of the three states.