Electronic display device
View Patent ↗An electronic display device includes a display unit including a plurality of scan lines along a first direction, a plurality of data lines along a second direction, and a plurality of pixels at intersection regions of the scan and data lines, and a barrier unit including a plurality of barrier regions extending along a direction of the data lines, the barrier unit including a plurality of first electrodes in each of the barrier regions, the first electrodes extending on a substrate along the first direction and being spaced apart from each other along the second direction, a plurality of second electrodes on the substrate at a different height than the first electrodes as determined with respect to the substrate, the first electrodes partly overlapping the second electrodes in a direction perpendicular to the substrate, and a dielectric layer on the substrate between the first and second electrodes.
1. An electronic display device, comprising
a display unit including a plurality of scan lines along a first direction, a plurality of data lines along a second direction, the second direction intersecting the first direction, and a plurality of pixels at intersection regions of the scan and data lines; and
a barrier unit in front of the display unit, the barrier unit including a plurality of barrier regions, each barrier region extending along a direction of the data lines, the barrier unit including:
a plurality of first electrodes in each of the barrier regions, the first electrodes extending on a substrate along the first direction and being spaced apart from each other along the second direction,
a plurality of second electrodes on the substrate at a different height than the first electrodes as determined with respect to the substrate, the first electrodes partly overlapping the second electrodes in a direction perpendicular to the substrate, and
a dielectric layer on the substrate between the first and second electrodes.
2. The electronic display device as claimed in claim 1 , wherein the first electrodes include first extending portions at opposite longitudinal edges of the first electrodes, the first extending portions being shorter than a total length of the first electrodes, and the first extending portions overlapping the second electrodes.
3. The electronic display device as claimed in claim 2 , wherein a width of each of the first electrodes is greater than a gap between two adjacent first electrodes within a same barrier region of the barrier unit, the width of each first electrode being measured as a distance between outermost edges of the first extending portions of the first electrode along the second direction.
4. The electronic display device as claimed in claim 2 , wherein only the first extending portions of the first electrodes overlap the second electrodes, the overlap of the first and second electrodes being within a same barrier region.
5. The electronic display device as claimed in claim 1 , wherein a group of first electrodes in one barrier region are separated and spaced apart from a group of first electrodes in an adjacent barrier region.
6. The electronic display device as claimed in claim 1 , wherein the first electrodes in odd-numbered barrier regions among the plurality of barrier regions of the barrier unit are not aligned with the first electrodes located in even-numbered barrier regions among the plurality of barrier regions of the barrier unit in a length direction of the data lines.
7. The electronic display device as claimed in claim 6 , wherein the first electrodes located in the odd-numbered barrier regions are aligned with each other in the length direction of the data lines, and the first electrodes located in the even-numbered barrier regions are aligned with each other in the length direction of the data lines.
8. The electronic display device as claimed in claim 1 , further comprising a first connection electrode in each barrier region, the first connection electrode extending along the second direction and interconnecting the first electrodes in the respective barrier region.
9. The electronic display device as claimed in claim 1 , further comprising a second connection electrode in each barrier region, the second connection electrode being disposed at a substantially same height as the first electrodes as determined with respect to the substrate, and the second connection electrode being spaced apart from the first electrodes in each of the barrier regions.
10. The electronic display device as claimed in claim 9 , wherein the second connection electrodes include metal.
11. The electronic display device as claimed in claim 9 , wherein the dielectric layer includes via holes, the second electrodes being electrically connected to the second connection electrodes through the via holes.
12. The electronic display device as claimed in claim 1 , wherein the second electrodes include second extending portions overlapping respective first electrodes in an adjacent barrier region, the second extending portions extending in the second direction.
13. The electronic display device as claimed in claim 1 , wherein the barrier regions of the barrier unit include first, second, third, and fourth barrier regions; and
each of the second electrodes in the first barrier region includes a second extending portion overlapping a corresponding first electrode in the second barrier region, each of the second electrodes in the second barrier region includes a second extending portion overlapping a corresponding first electrode in the third barrier region, and each of the second electrodes in the third barrier region includes a second extending portion overlapping a corresponding first electrode in the fourth barrier region.
14. The electronic display device as claimed in claim 1 , wherein the barrier regions of the barrier unit include first, second, third, and fourth barrier regions; and
first ends of the second electrodes in the second, third, and fourth barrier regions are disposed adjacent to corresponding first electrodes in the first, second, and third barrier regions, respectively, without gaps.
15. The electronic display device as claimed in claim 1 , wherein the barrier regions of the barrier unit include first, second, third, and fourth barrier regions;
the second electrodes in the first, second, and third barrier regions include second extending portions at first ends thereof, the third extending portions overlapping corresponding first electrodes in the second, third, and fourth barrier regions, respectively; and
second ends of the second electrodes in the second, third, and fourth barrier regions are disposed adjacent to corresponding first electrodes in the first, second, and third barrier regions, respectively, without gaps, the second ends being opposite respective first ends of the second electrodes.
16. The electronic display device as claimed in claim 1 , wherein each barrier region of the barrier unit corresponds to a respective region of the display unit, the barrier regions being configured to operate separately from each other.
17. The electronic display device as claimed in claim 1 , wherein the barrier unit is external with respect to the display unit, the barrier unit being configured to be controlled by separate signals than the display unit.
18. The electronic display device as claimed in claim 1 , wherein the display unit is a stereoscopic display, the barrier unit being configured to separate between left-eye and right-eye images.
19. The electronic display device as claimed in claim 2 , wherein the first extending portions are substantially level with the first electrodes, the first extending portions and the first electrodes defining a uniform flat surface facing the second electrodes and having a longitudinal direction extending in a direction perpendicular to a direction of the barrier regions.