Display device
A display device includes: a backlight unit, a camera hole penetrating the backlight unit, a camera in the camera hole, a liquid crystal panel on the backlight unit, the liquid crystal panel including a transparent portion on the camera hole, and at least one light-blocking member in the camera hole, the at least one light-blocking member being configured to reduce one or more of: light leakage from the camera hole and introduction of impurities into the camera hole.
1. A display device, comprising:
a backlight unit comprising a light guide plate;
a camera hole penetrating the backlight unit;
a camera in the camera hole;
a liquid crystal panel on the backlight unit, the liquid crystal panel comprising a transparent portion on the camera hole,
wherein:
a side surface of the light guide plate adjacent to the camera hole is inclined by a predetermined angle with respect to a line extending vertically from the light guide plate to the liquid crystal panel, the side surface of the light guide plate being configured to reduce light leakage from the camera hole,
the side surface of the light guide plate faces downwardly toward a vertical center line of the camera hole;
the predetermined angle for the side surface of the light guide plate is a single constant angle with respect to the line extending vertically; and
the side surface of the light guide plate having the single constant angle extends entirely from an uppermost edge of the light guide plate to a bottommost edge of the light guide plate.
2. The display device of claim 1 , wherein the predetermined angle is in a range from 30° to 60°.
3. The display device of claim 2 , wherein the predetermined angle is 45°.
4. The display device of claim 1 , further comprising a light-blocking member in the camera hole.
5. The display device of claim 4 , wherein the light-blocking member covers a portion of the camera hole located between the camera and the liquid crystal panel.
6. The display device of claim 5 , wherein the light-blocking member comprises a light-blocking tape.
7. The display device of claim 6 , wherein:
the camera hole has a circular cross-section; and
the light-blocking tape is shaped as a circular ring that is concentric with a circumferential surface of the camera hole.
8. The display device of claim 1 , further comprising:
a polarizing plate disposed between the liquid crystal panel and the light guide plate,
wherein:
the camera hole penetrates the polarizing plate;
a horizontal width of the polarizing plate is not greater than a horizontal width of an uppermost surface of the light guide plate;
the horizontal width of the polarizing plate is less than a horizontal width of the liquid crystal panel;
an edge of the polarizing plate faces toward the vertical center line of the camera hole; and
a gap between the edge of the polarizing plate and the vertical center line is not less than a gap between the uppermost edge of the light guide plate and the vertical center line.
9. The display device of claim 1 , further comprising:
a polarizing plate disposed above the light guide plate and disposed above or below the liquid crystal panel,
wherein:
a horizontal width of the polarizing plate is not greater than a horizontal width of an uppermost surface of the light guide plate;
the horizontal width of the polarizing plate is less than a horizontal width of the liquid crystal panel;
an edge of the polarizing plate faces toward the vertical center line of the camera hole; and
a gap between the edge of the polarizing plate and the vertical center line is not less than a gap between the uppermost edge of the light guide plate and the vertical center line.
10. The display device of claim 9 , wherein:
the backlight unit further comprises:
an optical sheet disposed on the light guide plate; and
a reflector plate disposed below the light guide plate;
an edge of the optical sheet facing toward the vertical center line of the camera hole coincides vertically with the uppermost edge of the light guide plate;
an edge of the reflector plate facing toward the vertical center line of the camera hole coincides vertically with the bottommost edge of the light guide plate;
a horizontal width of the optical sheet is same as a horizontal width of the uppermost surface of the light guide plate;
a horizontal width of the reflector plate is same as a horizontal width of a bottommost surface of the light guide plate; and
the horizontal width of the optical sheet is greater than the horizontal width of the reflector plate.
11. The display device of claim 1 , wherein:
the backlight unit comprises a plurality of planar layers;
the plurality of planar layers comprise the light guide plate; and
the plurality of planar layers overlap with each other vertically but do not overlap with each other horizontally.
12. The display device of claim 11 , wherein:
the plurality of planar layers further comprise:
a first planar layer disposed above the light guide plate; and
a second planar layer disposed below the light guide plate;
an edge of the first planar layer facing toward the vertical center line of the camera hole coincides vertically with the uppermost edge of the light guide plate;
an edge of the second planar layer facing toward the vertical center line of the camera hole coincides vertically with the bottommost edge of the light guide plate;
a horizontal width of the first planar layer is same as a horizontal width of an uppermost surface of the light guide plate;
a horizontal width of the second planar layer is same as a horizontal width of a bottommost surface of the light guide plate; and
the horizontal width of the first planar layer is greater than the horizontal width of the second planar layer.