Patent ID: 8208099

Claim:
A transmissive type liquid crystal display apparatus comprising: a pair of substrates; a pair of polarizing plates disposed on opposite sides of the pair of substrates; a liquid crystal layer sandwiched between the pair of substrates; an electrode group formed on at least one of the substrates for applying an electric field to the liquid crystal layer; a light source disposed on an outside of the pair of substrates; wherein a pixel unit includes at least three pixels of red, green, and blue, and a sub-pixel region divided by optical characteristics is formed in at least one region of the pixels; wherein at least one of the three pixels of red, green, and blue includes a main pixel region having a first color filter for a main pixel and a sub-pixel region having a second color filter for a sub-pixel; wherein the first color filter for the main pixel has higher color purity than that of the second color filter for the sub-pixel; wherein the second color filter for the sub-pixel exhibits the same peak wavelength as that of the first color filter for the main pixel, and has a transmittance at the same peak wavelength which is higher than that of the first color filter for the main pixel; wherein a threshold voltage of the sub-pixel is higher than a threshold voltage of the main pixel; wherein, during an in-plane switching display mode, at least one electrode of the electrode group is a linear electrode extending into the main pixel region and the sub-pixel region; wherein the linear electrode in the main pixel region has a first flexion angle and a second flexion angle, and the linear electrode in the sub-pixel region has a third flexion angle; wherein the linear electrode has a first bending angle formed by the first flexion angle and the second flexion angle in the main pixel region, and a second bending angle formed by the second flexion angle and the third flexion angle in a vicinity of a border between the main pixel region and the sub-pixel region; and wherein the flexion angle is an angle between the long side of the pixel and the extending direction of the linear electrode; so that a threshold voltage of the liquid crystal layer shifts to a high voltage side, making an increase in transmittance with respect to the voltage of the liquid crystal layer in the sub-pixel region larger than an increase in transmittance with respect to the voltage of the liquid crystal layer in the main pixel region.