Liquid crystal display device
a liquid crystal display and display device technology, applied in non-linear optics, instruments, optics, etc., can solve the problems of insufficient reflected light and bright spots, and achieve the effect of reducing contras
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first embodiment
[0068]FIG. 2 is a plan view of pixels according to a first embodiment of the present invention. In FIG. 2, an alignment direction 90 of an alignment film to determine the initial alignment of liquid crystal molecules is the vertical direction in FIG. 2. A pixel electrode 112 is an electrode in stripes (a plurality of lines) with a slit. The pixel electrode 112 is sometimes a line electrode with no slit. In order to define the rotation direction of liquid crystal molecules in applying a voltage to a liquid crystal, the length of the pixel electrode 112 is at a predetermined angle δ to an alignment direction 90. The angle δ ranges from an angle five to 15 degrees.
[0069]The pixel electrode 112 is formed in a region surrounded by a scanning line 10 and a picture signal line 20. The picture signal line 20 is tilted as matched with the slope δ of the pixel electrode. Thus, the picture signal line 20 bends and extends in the vertical direction, and is arrayed in the lateral direction. The ...
second embodiment
[0076]A second embodiment of the present invention will be described. FIG. 7 is a schematic diagram of the reflection of light off the side surface of the picture signal line 20 in the case in which the alignment direction 90 of the liquid crystal molecules is the same as the extending direction of the picture signal line 20. In this case, P-polarized light components are absent, and the ratios of S-polarized light and P-polarized light are the same. Thus, the direction of the polarization axis of reflected light is not changed. FIG. 8 is a schematic diagram in the case in which the alignment direction 90 of the liquid crystal molecules and the extending direction of the picture signal line 20 form an angle, e.g. an angle θ. In this case, the reflectance of P-polarized light is smaller than the reflectance of S-polarized light. Consequently, the polarization axis of the incident light and the polarization axis of the reflected light are changed. The greater the angle θ is, the great...
third embodiment
[0083]A third embodiment of the present invention will be described. In the first and second embodiments, the common metal interconnection 30 is disposed on the upper side of the common electrode 110. However, the common metal interconnection 30 can be formed on the lower side of the common electrode 110. FIG. 15 is this example. In FIG. 15, the common metal interconnection 30 is formed on the upper side of the organic passivation film 109 (on the liquid crystal layer side). On the common metal interconnection 30, the common electrode 110 is formed. On the common electrode 110, the capacitive insulating film 111 is formed. On the capacitive insulating film 111, the alignment film 113 is formed.
[0084]The plan disposition of the common metal interconnection 30 is similar to the plan disposition in FIG. 2. The common metal interconnection 30 is formed to cover the scanning line 10 and the picture signal line 20. As illustrated in FIG. 4, a through hole is similarly formed on the common...
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Abstract
Description
Claims
Application Information
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