Viewing angle adjustable panel and display device

Abstract

An adjustable viewing angle panel and display device are disclosed herein. The adjustable viewing angle panel includes a first substrate, a second substrate, a liquid crystal layer, a bottom electrode, a plurality of light-concentrating elements, and a plurality of electrode groups. The first substrate has opposing first and second surfaces. The second substrate has opposing third and fourth surfaces. The liquid crystal layer is disposed between the second and third surfaces. The bottom electrode is disposed on the second surface. The plurality of light-concentrating elements are disposed on the bottom electrode. The plurality of electrode groups are disposed on the third surface and each includes a plurality of separate electrode units, wherein the light-concentrating elements are respectively configured corresponding to the electrode groups.

Claims

1. A viewing angle adjustable panel, comprising: A first substrate having a first surface and a second surface opposite to each other; A second substrate having a third surface and a fourth surface opposite to each other; A liquid crystal layer is disposed between the second surface and the third surface; a bottom electrode is disposed on the second surface; a plurality of focusing elements are disposed on the bottom electrode; a plurality of electrode groups are disposed on the third surface, each electrode group comprising a plurality of separate electrode units, wherein the focusing elements are respectively configured corresponding to the electrode groups; a first polarizing plate is disposed on the first surface and has a first absorption axis; and a second polarizing plate is disposed on the fourth surface and has a second absorption axis, wherein the first absorption axis is perpendicular to the second absorption axis.

2. The viewing angle adjustable panel as claimed in claim 1, wherein the electrode units include a first electrode unit and a second electrode unit arranged opposite to each other, and a third electrode unit and a fourth electrode unit arranged opposite to each other, wherein the first electrode unit and the second electrode unit are each located between the third electrode unit and the fourth electrode unit.

3. The viewing angle adjustable panel as described in claim 2, wherein the first electrode units of the electrode groups are electrically connected to each other, the second electrode units of the electrode groups are electrically connected to each other, the third electrode units of the electrode groups are electrically connected to each other, and the fourth electrode units of the electrode groups are electrically connected to each other.

4. The viewing angle adjustable panel as described in claim 2, wherein the electrode groups are at least divided into a first electrode group and a second electrode group, and the first electrode group and the second electrode group are electrically separated, wherein the first electrode units of the first electrode group are electrically connected to each other, the first electrode units of the second electrode group are electrically connected to each other, the second electrode units of the first electrode group are electrically connected to each other, the second electrode units of the second electrode group are electrically connected to each other, the third electrode units of the first electrode group are electrically connected to each other, the third electrode units of the second electrode group are electrically connected to each other, the fourth electrode units of the first electrode group are electrically connected to each other, and the fourth electrode units of the second electrode group are electrically connected to each other.

5. The viewing angle adjustable panel as claimed in claim 2, wherein the vertical projection of one of the light-concentrating elements on the second substrate partially overlaps with at least one of the first electrode unit, the second electrode unit, the third electrode unit, and the fourth electrode unit of the electrode groups.

6. The viewing angle adjustable panel as claimed in claim 1, wherein the electrode units each have a first side and a second side and a third side and a fourth side opposite to each other, wherein the first side and the second side of the electrode units are perpendicular to the first absorption axis, and the third side and the fourth side of the electrode units are perpendicular to the second absorption axis.

7. The viewing angle adjustable panel as described in claim 1, wherein the electrode units are rhomboid or rectangular.

8. A display device, comprising: An adjustable viewing angle panel includes: a first substrate having a first surface and a second surface opposite to each other; a second substrate having a third surface and a fourth surface opposite to each other; a liquid crystal layer disposed between the second surface and the third surface; a bottom electrode disposed on the second surface; a plurality of light-concentrating elements disposed on the bottom electrode; a plurality of electrode groups disposed on the third surface, each electrode group including a plurality of separate electrode units, wherein the light-concentrating elements are respectively configured corresponding to the electrode groups; a first polarizing plate disposed on the first surface having a first absorption axis; and a second polarizing plate disposed on the fourth surface having a second absorption axis, wherein the first absorption axis is perpendicular to the second absorption axis; a light source module including a plurality of light-emitting units, wherein the first polarizing plate is located between the light source module and the first surface; and a display panel, wherein the second polarizing plate is located between the display panel and the fourth surface.

9. The display device as claimed in claim 8, wherein the vertical projection of one of the light-emitting units onto the first substrate partially overlaps with at least two of the light-concentrating elements.

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