Liquid crystal display device with orientation control projection having light shielding
The present invention lowers leaking of light at the time of performing a black display of VA-type liquid crystal display device and, at the same time, prevents lowering of a numerical aperture. In a liquid crystal display device having a liquid crystal display panel which sandwiches a liquid crystal material between a first substrate having a pixel electrode and a second substrate having a counter electrode, the second substrate includes an orientation control projection which is formed by forming a conductive film on the second substrate, by forming an insulation film on the conductive film and, thereafter, by patterning the insulation film, and a light shielding layer which is formed by patterning the conductive film using the orientation control projection as a mask.
1. A liquid crystal display device having a liquid crystal display panel which sandwiches a liquid crystal material between a first substrate having a pixel electrode and a second substrate having a counter electrode, wherein
the second substrate includes an orientation control projection which is formed by forming a conductive film on the second substrate, by forming an insulation film on the conductive film and, thereafter, by patterning the insulation film, and
a light shielding layer which is formed by patterning the conductive film using the orientation control projection as a mask, wherein the light shielding layer has an outer periphery thereof as viewed from above a planar surface of the substrate arranged inside an outer periphery of the orientation control projection and, at the same time, a whole side surface of the outer periphery of the light shielding layer is not covered with the orientation control projection.
2. A liquid crystal display device according to claim 1 , wherein the orientation control projection and the light shielding layer are arranged between the counter electrode and the pixel electrode.
3. A liquid crystal display device according to claim 1 , wherein the counter electrode is formed of a conductive film which is formed after patterning the light shielding layer.
4. A liquid crystal display device according to claim 1 , wherein the outer periphery of the light shielding layer is spaced apart from the outer periphery of the orientation control projection with a substantially fixed distance therebetween at respective points of the outer periphery of the light shielding layer.
5. A liquid crystal display device according to claim 1 , wherein in the liquid crystal display panel, when a potential difference between the pixel electrode and the counter electrode is 0 (zero), liquid crystal molecules in the liquid crystal material are oriented in the direction perpendicular to a planar surface of the substrate.