Liquid crystal display with varying thickness
View Patent ↗A liquid crystal display according to the invention includes a liquid crystal display element ( 100 ) having a liquid crystal layer ( 4 ) containing liquid crystal molecules oriented so as to assume a bend alignment when an image display is being made, and at least one retardation plate for compensating for a retardation of the liquid crystal layer, wherein the display is made by varying the retardation of the liquid crystal layer in accordance with video signals inputted from outside to vary the transmittance of the liquid crystal display element to light for display, characterized in that: the liquid crystal display element ( 100 ) includes a plurality of red pixels for displaying a red color, a plurality of green pixels for displaying a green color, and a plurality of blue pixels for displaying a blue color; and a thickness ( 53 B) of the liquid crystal layer ( 4 ) associated with the blue pixels is larger than a thickness ( 53 R, 53 G) of the liquid crystal layer associated with the red pixels and/or the green pixels.
1. A liquid crystal display comprising a liquid crystal display element having a liquid crystal layer containing liquid crystal molecules oriented so as to assume a bend alignment when an image display is being made, and at least one negative retardation plate for compensating for a retardation of the liquid crystal layer, wherein the display is made by varying the retardation of the liquid crystal layer in accordance with video signals inputted from outside to vary the transmittance of the liquid crystal display element to light for display,
characterized in that:
the negative retardation plate has a hybrid-aligned primary axis, and
the liquid crystal display element includes a plurality of red pixels for displaying a red color, a plurality of green pixels for displaying a green color, and a plurality of blue pixels for displaying a blue color; and a thickness of the liquid crystal layer associated with the blue pixels is larger than a thickness of the liquid crystal layer associated with the red pixels and the green pixels, wherein the thickness of liquid crystal layers associated with red pixels and green pixels are equal.
2. The liquid crystal display according to claim 1 , wherein a difference between the thickness of the liquid crystal layer associated with the blue pixels and the thickness of the liquid crystal layer associated with the red pixels and the green pixels is not less than 0.2 μm and not more than 1.0 μm.
3. The liquid crystal display according to claim 1 , wherein the thickness of the liquid crystal layer associated with the blue pixels is not less than 104% and not more than 120% of the thickness of the liquid crystal layer associated with the red pixels and the green pixels.
4. The liquid crystal display according to claim 1 , further comprising a lighting device having light sources for emitting a red light, a green light and a blue light, respectively, and lighting device control means for controlling the lighting device in a manner to cause the light sources to emit respective color lights by time division.