Electronic paper display device
An electronic paper display device includes a first substrate, a plurality of display units and a plurality of light-emitting units. The first substrate includes first base and a plurality of electrodes disposed on the first base. The display units are disposed above the first substrate. The light-emitting units are respectively disposed between the display units and the first base.
1. An electronic paper display device, comprising:
a first substrate;
a second substrate;
a plurality of display units disposed above the first substrate and below the second substrate, defined by a plurality of partition elements disposed on the first substrate and positioned between the first substrate and a second substrate, forming a plurality of accommodating rooms for the corresponding plurality of display units, wherein each display unit includes an air medium and a plurality of liquid powders distributed in the air medium;
a plurality of groups of side electrodes disposed on the first substrate, each group of side electrodes comprising a first electrode and a second electrode, wherein each group of side electrodes is disposed in each accommodating room and not in contact with the plurality of partition elements; and
a plurality of light-emitting units, each light-emitting unit disposed between the first electrode and the second electrode of the corresponding group of side electrodes, positioned between the display units and the first base;
wherein, the light-emitting units are configured for absorbing light energy from an external light source supplying light through the second substrate, and emitting light directed away from the first substrate and through the second substrate for displaying images.
2. The electronic paper display device as claimed in claim 1 , wherein each light-emitting unit is a microcup structure, and the display units are filled in the microcup structures.
3. The electronic paper display device as claimed in claim 1 , further comprising a plurality of microcup structures disposed on the first substrate, wherein each light-emitting unit is coated on a surface of the corresponding microcup structure, and the display units are filled in the microcup structures.
4. The electronic paper display device as claimed in claim 1 , wherein the light-emitting units are made of a phosphorescent material or a fluorescent material.
5. The electronic paper display device as claimed in claim 1 , wherein the electrodes are side electrodes arranged into a plurality of groups, each group of side electrode comprises a first electrode and a second electrode adjacent to the first electrode, each light-emitting unit is respectively disposed between the first electrode and the second electrode of the corresponding side electrode.
6. The electronic paper display device as claimed in claim 5 , wherein the display units are microcup electrophoretic display units, microcapsule electrophoretic display units or liquid powder display units.
7. The electronic paper display device as claimed in claim 1 , wherein each light-emitting is respectively disposed on the corresponding electrode.
8. The electronic paper display device as claimed in claim 7 , wherein the display units are bead electrophoretic display units.
9. The electronic paper display device as claimed in claim 1 , wherein each light-emitting unit is respectively disposed between the corresponding electrode and the first base.
10. The electronic paper display device as claimed in claim 9 , wherein the display units are electrowetting display units.