Liquid crystal display device including an opening in a color filter
View Patent ↗The present application discloses a liquid crystal display device for displaying a video on a display surface with pixels arranged in a matrix. Each of the pixels has three sub-pixels formed with different color filter portions in hue. The display surface includes pixel sets. Each of the pixel sets is defined to include two or three of the pixels next to each other in at least one of the vertical and horizontal directions. An opening is formed on one of the color filter portions every hue in each of the pixel sets.
1. A liquid crystal display device comprising:
a processor configured to process a video signal;
a display panel including a display surface configured to display a video in response to the video signal; and
a back light device configured to emit light toward the display surface, wherein:
the display surface includes pixel sets defined so that each of the pixel sets includes a plurality of pixels arranged in a matrix adjacent to each other in at least one of a vertical direction and a horizontal direction,
the plurality of pixels includes a first pixel and a second pixel,
each of the first pixel and the second pixel includes a first color filter portion with a first color filter, a second color filter portion with a second color filter, and a third color filter portion with a third color filter,
the first color filter portion is configured to change light emitted from the backlight device into a first hue,
the second color filter portion is configured to change light emitted from the backlight device into a second hue different from the first hue,
the third color filter portion is configured to change light emitted from the backlight device into a third hue different from the first and second hues,
the first color filter of the first pixel includes an opening and the second and third color filters of the first pixel do not include an opening, and
the first color filter of the second pixel does not include an opening and at least one of the second and the third color filters of the second pixel includes an opening.
2. The liquid crystal display device according to claim 1 , wherein:
the first color filter of the first pixel includes a first opening, the at least one of the second and third color filters of the second pixel includes the second color filter of the second pixel including a second opening and the third color filter of the second pixel including a third opening,
the first pixel includes a first opened sub-pixel including the first color filter formed with the first opening, a first unopened sub-pixel including the second color filter, and a third unopened sub-pixel including the third color filter; and
the second pixel includes a first unopened sub-pixel including the first color filter, a second opened sub-pixel including the second color filter formed with the second opening, and a third opened sub-pixel including the third color filter formed with the third opening.
3. The liquid crystal display device according to claim 2 , further comprising an input portion to which the video signal is input to display the video, wherein each size of the first to third openings is designed so that each of the first and second pixels emits light at equal luminance when the video signal defines equal luminance for the first and second pixels.
4. The liquid crystal display device according to claim 3 , wherein the first opened sub-pixel of the first pixel is situated between the first and third unopened sub-pixels; and the second unopened sub-pixel of the second pixel is situated between the second and third opened sub-pixels.
5. The liquid crystal display device according to claim 2 , wherein the first and second pixels are arranged to form a zigzag stitch pattern on the display surface.
6. The liquid display device according to claim 2 , wherein the first and second pixels are arranged alternately in a horizontal direction.
7. The liquid display device according to claim 2 , wherein the first and second pixels are arranged alternately in a vertical direction.
8. The liquid crystal display device according to claim 3 , wherein the first to third hues are selected from a group consisting of red, green and blue, respectively; and the video signal defines emission colors and luminance from the first and second pixels by means of the red, green and blue hues.
9. The liquid crystal display device according to claim 1 , configured to be a transmissive liquid crystal display device.
10. The liquid crystal display device according to claim 1 , wherein the plurality of pixels includes only the first pixel and the second pixel.