Electro-optical device, electro-optical unit, and display device
According to an aspect, an electro-optical device includes: a first substrate; a first electrode disposed on the first substrate; a second substrate disposed facing the first substrate; a second electrode disposed on the second substrate and facing the first electrode; and a liquid crystal layer provided between the first electrode and the second electrode. The second electrode includes a plurality of divided electrodes arranged in a first direction. Two divided electrodes adjacent to each other among the divided electrodes are disposed with a slit interposed between the two divided electrodes.
1. An electro-optical device configured to be placed so as to overlap a display panel configured to display an image in a display region provided with a plurality of pixel electrodes, the electro-optical device comprising:
a first substrate;
a first electrode disposed on the first substrate;
a second substrate disposed facing the first substrate;
a second electrode disposed on the second substrate and facing the first electrode; and
a liquid crystal layer provided between the first electrode and the second electrode, wherein
the second electrode includes a plurality of divided electrodes arranged in a first direction and each of which has a size in the first direction larger than each of the pixel electrodes,
two divided electrodes adjacent to each other among the divided electrodes are disposed with a slit interposed between the two divided electrodes,
each of the divided electrodes is configured to adjust a view angle of the display region in accordance with a visual recognition control signal related to visual recognition of the image displayed in the display region, and
the electro-optical device is placed between the display panel and a viewer.
2. The electro-optical device according to claim 1 , wherein, of the two divided electrodes adjacent to each other, a potential of a divided electrode on a first side in the first direction is higher than a potential of a divided electrode on a second side in the first direction.
3. The electro-optical device according to claim 1 , wherein
a potential of one of the divided electrodes is equal to a potential of the first electrode, and
a potential of another one of the divided electrodes is higher than the potential of the one divided electrode.
4. An electro-optical unit comprising two of the electro-optical devices according to claim 1 , wherein
two first divided electrodes adjacent to each other among a plurality of first divided electrodes included in a first electro-optical device of the two electro-optical devices are disposed with a first slit interposed between the two first divided electrodes,
two second divided electrodes adjacent to each other among a plurality of second divided electrodes included in a second electro-optical device of the two electro-optical devices overlap the two first divided electrodes in a plan view and are disposed with a second slit interposed between the two second divided electrodes, and
the second slit overlaps the first slit in a plan view.
5. An electro-optical unit comprising two of the electro-optical devices according to claim 1 , wherein
two first divided electrodes adjacent to each other among a plurality of first divided electrodes included in a first electro-optical device of the two electro-optical devices are disposed with a first slit interposed between the two first divided electrodes,
two second divided electrodes adjacent to each other among a plurality of second divided electrodes included in a second electro-optical device of the two electro-optical devices overlap the two first divided electrodes in a plan view and are disposed with a second slit interposed between the two second divided electrodes,
the second electro-optical device is disposed on a back surface side of the first electro-optical device, and
the second slit is positioned on a first side of the first slit in the first direction in a plan view.
6. A display device comprising:
the electro-optical device according to claim 1 ; and
the display panel having the display region, wherein
the electro-optical device entirely overlaps the display region in a plan view.
7. The display device according to claim 6 , wherein
the display region includes a strip-shaped black display region parallel to the slit in a plan view, and
the black display region overlaps the slit in a plan view.
8. The display device according to claim 6 , wherein
the display region includes a strip-shaped black display region parallel to the slit in a plan view, and
the black display region is positioned on a first side of the slit in the first direction in a plan view.
9. The electro-optical device according to claim 1 , wherein
when the visual recognition control signal is a first signal, potentials of the divided electrodes are controlled such that a traveling direction of light does not change in the liquid crystal layer, and
when the visual recognition control signal is a second signal, the potentials of the divided electrodes are controlled such that a transmittance of the liquid crystal layer decreases from one side to the other side in the first direction.