DISPLAY DEVICE AND ELECTRONIC DEVICE
A display device includes a first, second and third sub-pixel areas allowing light of a first, second and third main wavelengths transmitting therethrough, respectively. The first, second and third sub-pixel areas have first, second and third ratios of first, second and third electrode widths to first, second and third electrode slits of first, second and third interdigitated electrodes, respectively. When the first main wavelength is larger than the second main wavelength and the second main wavelength is larger than the third main wavelength, a difference between any two of the first, second and third ratios is less than 0.2. A first electrode slit of the first interdigitated electrode is smaller than the second electrode slit of the second interdigitated electrode, and the second electrode slit of the second interdigitated electrode is smaller than the third electrode slit of the third interdigitated electrode.
1 . A display device, comprising:
a first sub-pixel area allowing a light of a first main wavelength transmitting therethrough;
a second sub-pixel area allowing a light of a second main wavelength transmitting therethrough;
a third sub-pixel area allowing a light of a third main wavelength transmitting therethrough;
a first interdigitated electrode disposed in the first sub-pixel area, having first electrode strips parallel to each other, wherein the first electrode strips have a first electrode width and a first electrode slit, and wherein the first sub-pixel area has a first ratio of the first electrode width to the first electrode slit of the first electrode strips;
a second interdigitated electrode disposed in the second sub-pixel area, having second electrode strips parallel to each other, wherein the second electrode strips have a second electrode width and a second electrode slit, and wherein the second sub-pixel area has a second ratio of the second electrode width to the second electrode slit of the second electrode strips; and
a third interdigitated electrode disposed in the third sub-pixel area, having third electrode strips parallel to each other, wherein the third electrode strips have a third electrode width and a third electrode slit, and wherein the third sub-pixel area has a third ratio of the third electrode width to the third electrode slit of the third electrode strips,
wherein when the first main wavelength is larger than the second main wavelength and the second main wavelength is larger than the third main wavelength, a difference between any two of the first, second and third ratios is less than 0.2, and
wherein the first electrode slit is smaller than the second electrode slit, and the second electrode slit is smaller than the third electrode slit.
2 . The display device as claimed in claim 1 , further comprising:
a blue phase liquid crystal layer covering the first, second and third sub-pixel areas.
3 . The display device as claimed in claim 1 , wherein the first sub-pixel area has a first cell gap, the second sub-pixel area has a second cell gap, the third sub-pixel area has a third cell gap, and wherein the first cell gap is larger than the second cell gap and the second cell gap is larger than third cell gap.
4 . The display device as claimed in claim 2 , wherein the first main wavelength is 650±30 nm, the second main wavelength is 550±30 nm, and the third main wavelength is 450±30 nm.
5 . The display device as claimed in claim 1 , wherein the first, second and third electrode strips respectively have a first, second and third electrode heights, and wherein the first electrode height is larger than the second electrode height and the second electrode height is larger than the third electrode height.
6 . A display device, comprising:
a first sub-pixel area allowing a light of a first main wavelength transmitting therethrough having a first cell gap;
a second sub-pixel area allowing a light of a second main wavelength transmitting therethrough having a second cell gap;
a third sub-pixel area allowing a light of a third main wavelength transmitting therethrough having a third cell gap;
a first interdigitated electrode disposed in the first sub-pixel area, having first electrode strips parallel to each other, wherein the first electrode strips have a first electrode width and a first electrode slit, and wherein the first sub-pixel area has a first ratio of the first electrode width to the first electrode slit of the first electrode strips;
a second interdigitated electrode disposed in the second sub-pixel area, having second electrode strips parallel to each other, wherein the second electrode strips have a second electrode width and a second electrode slit, and wherein the second sub-pixel area has a second ratio of the second electrode width to the second electrode slit of the second electrode strips; and
a third interdigitated electrode disposed in the third sub-pixel area, having third electrode strips parallel to each other, wherein the third electrode strips have a third electrode width and a third electrode slit, and wherein the third sub-pixel area has a third ratio of the third electrode width to the third electrode slit of the third electrode strips,
wherein when the first main wavelength is larger than the second main wavelength and the second main wavelength is larger than the third main wavelength, a difference between any two of the first, second and third ratios is less than 0.2, and
wherein the first cell gap is larger than the second cell gap and the second cell gap is larger than third cell gap.
7 . The display device as claimed in claim 6 , further comprising:
a blue phase liquid crystal layer covering the first, second and third sub-pixel areas.
8 . The display device as claimed in claim 6 , wherein the first electrode slit is smaller than the second electrode slit, and the second electrode slit is smaller than the third electrode slit.
9 . The display device as claimed in claim 6 , wherein the first main wavelength is 650±30 nm, the second main wavelength is 550±30 nm, and the third main wavelength is 450±30 nm.
10 . The display device as claimed in claim 6 , wherein the first, second and third electrode strips respectively have a first, second and third electrode heights, and wherein the first electrode height is larger than the second electrode height and the second electrode height is larger than the third electrode height.
11 . A display device, comprising:
a first sub-pixel area allowing a light of a first main wavelength transmitting therethrough;
a second sub-pixel area allowing a light of a second main wavelength transmitting therethrough;
a third sub-pixel area allowing a light of a third main wavelength transmitting therethrough;
a first interdigitated electrode disposed in the first sub-pixel area, having first electrode strips parallel to each other, wherein the first electrode strips have a first electrode width, a first electrode slit and a first electrode height, and wherein the first sub-pixel area has a first ratio of the first electrode width to the first electrode slit of the first electrode strips;
a second interdigitated electrode disposed in the second sub-pixel area, having second electrode strips parallel to each other, wherein the second electrode strips have a second electrode width, a second electrode slit and a second electrode height, and wherein the second sub-pixel area has a second ratio of the second electrode width to the second electrode slit of the second electrode strips; and
a third interdigitated electrode disposed in the third sub-pixel area, having third electrode strips parallel to each other, wherein the third electrode strips have a third electrode width, a third electrode slit and a third electrode height, and wherein the third sub-pixel area has a third ratio of the third electrode width to the third electrode slit of the third electrode strips,
wherein when the first main wavelength is larger than the second main wavelength and the second main wavelength is larger than the third main wavelength, a difference between any two of the first, second and third ratios is less than 0.2, and
wherein the first electrode height is larger than the second electrode height and the second electrode height is larger than third electrode height.
12 . The display device as claimed in claim 11 , further comprising:
a blue phase liquid crystal layer covering the first, second and third sub-pixel areas.
13 . The display device as claimed in claim 11 , wherein the first electrode slit is smaller than the second electrode slit, and the second electrode slit is smaller than the third electrode slit.
14 . The display device as claimed in claim 11 , wherein the first sub-pixel area has a first cell gap, the second sub-pixel area has a second cell gap, the third sub-pixel area has a third cell gap, and wherein the first cell gap is larger than the second cell gap and the second cell gap is larger than third cell gap.
15 . An electronic device, comprising
a display device as claimed in claim 1 ; and
a controller controlling the display device such that the display device displays images.
16 . The display device as claimed in claim 15 , wherein the electronic device is a mobile phone, digital camera, personal digital assistant (PDA), notebook computer, desktop computer, television, car display or portable DVD player.
17 . An electronic device, comprising
a display device as claimed in claim 6 ; and
a controller controlling the display device such that the display device displays images.
18 . The display device as claimed in claim 17 , wherein the electronic device is a mobile phone, digital camera, personal digital assistant (PDA), notebook computer, desktop computer, television, car display or portable DVD player.