Backlight assembly with optical member coupling means and display appartus having the same
View Patent ↗A backlight assembly includes a light generating unit, a receiving member, an optical member, and a frame member. The receiving member includes a receiving part receiving the light generating unit, a supporting part extending from the receiving part, and a protrusion portion protruded from the supporting part. The optical member is guided to a predetermined position on the supporting part by the protrusion portion, and diffuses the light provided from the light generating unit. The frame member includes a fixing part coupled with the supporting part and protruded from a surface of the frame member facing the supporting part. The fixing part prevents the optical member from moving in a direction substantially parallel to an upper surface of the supporting part.
1. A backlight assembly comprising:
a light generating unit;
a receiving member comprising a receiving part receiving the light generating unit, a supporting part extending from the receiving part, and a protrusion portion protruded from the supporting part;
an optical member located at a predetermined position on the supporting part and including a portion coupled to the protrusion portion; and
a frame member including a fixing part and a recess spaced apart from the fixing part, wherein the fixing part and recess protrude downward from a surface of the top of the frame member, the fixing part includes a first barrier wall, a second barrier wall and a third barrier wall that extend from opposite ends of the first barrier wall in a direction perpendicular to the first barrier wall to form a cavity therebetween, the fixing part faces the supporting part and is coupled with the supporting part,
wherein the fixing part is configured to prevent the optical member from moving in a direction substantially parallel to an upper surface of the supporting part, and wherein the recess is configured to receive the protrusion portion therein.
2. The backlight assembly of claim 1 , wherein the light generating unit comprises a plurality of lamps extended in a first direction, arranged in a second direction substantially perpendicular to the first direction, and disposed between the optical member and the receiving member.
3. The backlight assembly of claim 1 , wherein the light generating unit comprises:
a circuit board received in the receiving part and positioned to face the optical member; and
a plurality of light emitting diodes mounted on the circuit board.
4. The backlight assembly of claim 1 , wherein the optical member comprises:
a diffusion plate; and
an optical sheet disposed on the diffusion plate.
5. The backlight assembly of claim 4 , wherein the protrusion portion includes a multi-tiered protruding structure.
6. The backlight assembly of claim 5 , wherein the protrusion portion comprises
a guide portion protruded from the supporting part to position the diffusion plate on the supporting portion and
a coupling protrusion protruded from an upper surface of the guide portion and coupled with the optical sheet.
7. The backlight assembly of claim 6 , wherein the optical sheet comprises:
light transmitting portion corresponding to the diffusion plate; and
a sheet fixing portion extended from the light transmitting portion and disposed on the upper surface of the guide portion, the sheet fixing portion including a fixing hole formed therethrough.
8. The backlight assembly of claim 6 , wherein the first barrier wall is positioned along a same line as a side surface of the guide portion neighboring the diffusion plate.
9. The backlight assembly of claim 8 , wherein the first barrier wall faces a side surface of the diffusion plate.
10. A display apparatus comprising:
a backlight assembly; and
a display panel, wherein the backlight assembly comprises:
a light generating unit;
a receiving member comprising a receiving part receiving the light generating unit, a supporting part extending from the receiving part, and a protrusion portion protruded from the supporting part;
an optical member located at a predetermined position on the supporting part and including a portion coupled to the protrusion portion; and
a frame member including a fixing part and a recess spaced apart from the fixing part, wherein the fixing part and recess protrude downward from a surface of the top of the frame member, the fixing part includes a first barrier wall, a second barrier wall and a third barrier wall that extend from opposite ends of the first barrier wall in a direction perpendicular to the first barrier wall to form a cavity therebetween, the fixing part faces the supporting part and is coupled with the supporting part,
wherein the fixing part is configured to prevent the optical member from moving in a direction substantially parallel to an upper surface of the supporting part, and wherein the recess is configured to receive the protrusion portion therein.
11. The display apparatus of claim 10 , wherein the light generating unit comprises a plurality of lamps extended in a first direction, arranged in a second direction substantially perpendicular to the first direction, and disposed between the optical member and the receiving member.
12. The display apparatus of claim 10 , wherein the frame member comprises a panel guide portion on which the display panel is disposed.
13. The display apparatus of claim 12 , further comprising a top chassis coupled with the frame member to fix the display panel on the frame member.
14. The display apparatus of claim 10 , wherein the optical member comprises:
a diffusion plate; and
an optical sheet disposed on the diffusion plate.
15. The display apparatus of claim 14 , wherein the protrusion portion includes a multi-tiered protruding structure.
16. The display apparatus of claim 15 , wherein the protrusion portion comprises
a guide portion protruded from the supporting part to position the diffusion plate on the supporting portion and
a coupling protrusion protruded from an upper surface of the guide portion and coupled with the optical sheet.
17. The display apparatus of claim 16 , wherein the first barrier wall is positioned along the same line as a side surface of the guide portion neighboring the diffusion plate and faces a side surface of the diffusion plate.
18. The display apparatus of claim 16 , wherein the optical sheet comprises:
a light transmitting portion corresponding to the diffusion plate; and
a sheet fixing portion extended from the light transmitting portion and disposed on the upper surface of the guide portion, the sheet fixing portion including a fixing hole formed therethrough.