Image display device, portable terminal device, display panel and image display method using the same
View Patent ↗A three-dimensional image/two-dimensional image display device includes a plurality of display pixels, and a lenticular lens for three-dimensional display. Each display pixel is consisted of M×N number of sub-pixels to be viewed from N view points. A pitch a of sub-pixels arranged in the longitudinal direction of ridge projection of the lenticular lens and a pitch b of the sub-pixels arranged in a direction orthogonal to the longitudinal direction of the lenticular lens satisfy the following expression. The M×N number of sub-pixels included in each of said display pixels are formed within a square area. a:b=N :1
1. An image display device comprising:
a display panel which includes a plurality of display pixels arranged in a matrix, each display pixel having M×N (M and N each represent a natural number) number of sub-pixels, said M×N number of sub-pixels included in each of said display pixels being formed within a square area; and
a lenticular lens which has a plurality of cylindrical lenses arrayed along array direction of N number of sub-pixels, each of said cylindrical lenses corresponding to N number of sub-pixels, in said each display pixel,
wherein said display panel is a color display panel comprising sub-pixels of three primary colors and M represents 3, and wherein when assuming a pitch of said sub-pixels arranged in a longitudinal direction along a ridge projection of said lenticular lens is a and a pitch of said sub-pixels arranged in a direction orthogonal to said longitudinal direction of said lenticular lens is b, an expression a:b=N:3 results, and
wherein said primary color sub-pixels having the same color are arranged in a direction orthogonal to said longitudinal direction of said lenticular lens.
2. The image display device according to claim 1 , wherein a focal distance of said lenticular lens and a distance between an apex of said lens and said pixel are different from each other.
3. The image display device according to claim 1 , wherein said longitudinal direction along said ridge projection of said lenticular lens is a horizontal direction of an image to be displayed.
4. The image display device according to claim 1 ,
wherein N represents 2, and said display pixel comprises a sub-pixel for left eye and a sub-pixel for right eye,
wherein an image for left eye and an image for right eye are displayed by sub-pixels for left eye and sub-pixels for right eye, respectively,
wherein at the time of display of three-dimensional image, images with parallax are displayed by said sub-pixels for left eye and said sub-pixels for right eye, and
wherein at the time of display of two-dimensional image, the same images are displayed by said sub-pixels for left eye and said sub-pixels for right eye.
5. The image display device according to claim 1 , wherein said display panel is a liquid crystal display panel.
6. The image display device according to claim 1 , wherein said display panel is an organic electroluminescent panel.
7. A portable terminal device comprising said image display device described in claim 1 .
8. An image display device comprising:
a display panel which includes a plurality of display pixels arranged in a matrix, each display pixel having M×N (M and N each represent a natural number) number of sub-pixels, said M×N number of sub-pixels included in each of said display pixels being formed within a square area; and
a lenticular lens which has a plurality of cylindrical lenses arrayed along array direction of N number of sub-pixels, each of said cylindrical lenses corresponding to N number of sub-pixels, in said each display pixel,
wherein said display panel is a color display panel comprising sub-pixels of three primary colors and M represents 3, and wherein when assuming a pitch of said sub-pixels arranged in a longitudinal direction along a ridge projection of said lenticular lens is a and a pitch of said sub-pixels arranged in a direction orthogonal to said longitudinal direction of said lenticular lens is b, an expression a:b=N:3 results, and
wherein a set of three sub-pixels having the same relative positional relationship to a central axis of said lenticular lens and positioned adjacent one another constitutes primary color sub-pixels with primary colors, red, blue and green.
9. The image display device according to claim 8 , wherein a focal distance of said lenticular lens and a distance between an apex of said lens and said pixel are different from each other.
10. The image display device according to claim 8 , wherein said longitudinal direction along said ridge projection of said lenticular lens is a horizontal direction of an image to be displayed.
11. The image display device according to claim 8 ,
wherein N represents 2, and said display pixel comprises a sub-pixel for left eye and a sub-pixel for right eye,
wherein an image for left eye and an image for right eye are displayed by sub-pixels for left eye and sub-pixels for right eye, respectively,
wherein at the time of display of three-dimensional image, images with parallax are displayed by said sub-pixels for left eye and said sub-pixels for right eye, and
wherein at the time of display of two-dimensional image, the same images are displayed by said sub-pixels for left eye and said sub-pixels for right eye.
12. The image display device according to claim 8 , wherein said display panel is a liquid crystal display panel.
13. The image display device according to claim 8 , wherein said display panel is an organic electroluminescent panel.
14. A portable terminal device comprising said image display device described in claim 8 .