Patent ID: 11927840
Assignee: INNOLUX CORPORATION
Field: Optics (Instruments)
Classification: CPC G | IPC G

Claim 10:
11. An electronic device, comprising:
a display panel; and
a viewing angle control unit disposed opposite to the display panel, wherein the viewing angle control unit comprises:
a first substrate;
a second substrate disposed opposite to the first substrate, wherein the second substrate is farther away from the display panel than the first substrate;
a first electrode layer disposed on the second substrate;
a plurality of protrusions disposed between the plurality of protrusions and the second substrate, wherein an optical density of the plurality of protrusions is between 1.8 and 4.2; and
a plurality of shielding units disposed between the first substrate and the second substrate and disposed corresponding to the plurality of protrusions,
wherein one of the plurality of shielding units forms a first projection on the first substrate, one of the plurality of protrusions forms a second projection on the first substrate, and the second projection falls within the first projection,
wherein at least a part of the first electrode layer is disposed between the one of the plurality of shielding units and the one of the plurality of protrusions,
wherein the first projection has a first maximum length in a first direction, the second projection has a second maximum length in the first direction, the first maximum length and the second maximum length satisfy the following formula (I), the first projection has a first maximum width in a second direction, the second projection has a second maximum width in the second direction, the first direction is different from the second direction, and the first maximum width and the second maximum width satisfy the following formula (II):

2≥A/a≥1,  (I)

2≥B/b≥1,  (II)

where A represents the first maximum length, a represents the second maximum length, B represents the first maximum width, and b represents the second maximum width.