Two-screen display device
View Patent ↗A two-screen display device, in which an increase of production cost can be suppressed while the same resolution as an image of a usual (one-screen display) device is maintained, is provided. In a liquid crystal display panel of the two-screen display device, each of a first sub-pixel for first image and a second sub-pixel for second image has an aspect ratio of about 6:1. A source line supplies an image signal to both the first sub-pixel and the second sub-pixel. Each row of the sub-pixel includes a gate line (first gate line) that drives the first sub-pixel and a gate line (second gate line) that drives the second sub-pixel. An opening of a parallax barrier is disposed in a region between the first sub-pixel and the second sub-pixel.
1. A two-screen display device comprising:
a first sub-pixel that is of a sub-pixel for a first image and a second sub-pixel that is of a sub-pixel for a second image, the first sub-pixel and the second sub-pixel being adjacent to each other, each of the first sub-pixel and the second sub-pixel having an aspect ratio of about 6:1, the aspect ratio of each sub-pixel corresponding to a ratio of a repetition unit of sub-pixels in a row direction to a repetition unit of sub-pixels in a column direction;
a source line that supplies an image signal to both said first sub-pixel and said second sub-pixel;
a first switching element that is connected between said source line and said first sub-pixel;
a second switching element that is connected between said source line and said second sub-pixel;
a first gate line that is of a gate line supplying a driving signal to a control electrode of said first switching element to drive said first sub-pixel;
a second gate line that is of a gate line supplying a driving signal to a control electrode of said second switching element to drive said second sub-pixel;
a display region in which a plurality of sets of said first sub-pixel and said second sub-pixel are arrayed into a two-dimensional matrix shape; and
a parallax barrier that is of a light shielding film provided on said display region, said parallax barrier including a plurality of openings arrayed in a region between said first sub-pixel and said second sub-pixel, which are adjacent to each other
a first row in which said openings of said parallax barrier are disposed in a region between said first sub-pixel and said second sub-pixel, which receive the image signal from the identical source line, and a second row in which said openings of said parallax barrier are disposed in a region between said first sub-pixel and said second sub-pixel, which receive the image signal from the different source lines, are alternately disposed in said display region; and
the openings of said parallax barrier in the first row are each shifted in an extending direction of said gate lines from the openings of said parallax barrier in the second row.
2. The two-screen display device according to claim 1 , wherein
said source line extends between said first sub-pixel and said second sub-pixel, to which the source line supplies an image signal,
each of said first gate line and said second gate line extends in a direction intersecting said source line, and said first gate line and said second gate line are disposed while said first sub-pixel driven by the first gate line and said second sub-pixel driven by the second gate line are interposed between the first gate line and the second gate line.
3. The two-screen display device according to claim 1 , wherein
the color produced by each of said first sub-pixel and said second sub-pixel is arrayed in said display region while regularly changing in each sub-pixel in an extending direction of said gate lines.
4. The two-screen display device according to claim 1 , wherein
each of said first sub-pixel and said second sub-pixel produces one of red, green, and blue colors,
the color produced by each of said first sub-pixel and said second sub-pixel is regularly arrayed in said display region in an extending direction of said gate lines, and said first sub-pixel and said second sub-pixel, which receive the image signal from said identical source line, produce an identical color light.
5. The two-screen display device according to claim 1 , wherein
a polarity of said image signal supplied to said source line is inverted in each of said gate line, and reversed with respect to an image signal of said adjacent source line.
6. The two-screen display device according to claim 1 , wherein
a polarity of said image signal supplied to said source line is inverted in each set of said first gate line and said second gate line, and reversed with respect to an image signal of said adjacent source line.
7. The two-screen display device according to claim 1 , wherein said parallax barrier is made of metal or black resin.