Backlight assembly and cover for a compact display apparatus
View Patent ↗A back cover for a backlight assembly capable of achieving a more compact a display apparatus includes a cover element, a line portion, and a plurality of point light sources. The cover element includes a metallic layer, and the cross-section of the cover element has an L-shape. The line portion is formed over the cover element. The point light sources are mounted on the surface of the cover element to receive a driving voltage from the line portion. A bottom cover portion of the cover element covers an opening portion. A side cover portion of the cover element faces the side wall. The point light sources mounted on the cover element emit light on a side surface of a light guide plate.
1. A back cover for a display apparatus, the back cover comprising:
a cover element including a metallic layer, a cross-section of the cover element including an L-shaped portion;
a line portion formed over the cover element, and including an insulating layer formed on the metallic layer and an input line insulated from the metallic layer by the insulating layer; and
a plurality of point light sources mounted on the surface of the cover element, the point light sources connected to the input line.
2. The back cover of claim 1 , wherein the line portion further comprises a ground line insulated from the metallic layer by the insulating layer and electrically connected to each point light source, to output a feedback signal.
3. A backlight assembly comprising:
a receiving container including a bottom plate and a side wall extended from an edge of the bottom plate;
a light guide plate disposed over the bottom plate; and
a back cover being coupled to the receiving container and partially supporting the light guide plate, the back cover including a cover element including a first portion and a second portion, a plurality of point light sources mounted on the cover element to face a side surface of the light guide plate, and a line portion formed over the cover element to apply a driving voltage to the point light sources
wherein the second portion extends from the first portion.
4. The backlight assembly of claim 3 , wherein the second portion faces the side wall.
5. The backlight assembly of claim 4 , wherein a groove into which the point light sources are inserted is formed in an inside lower portion of the side wall.
6. The backlight assembly of claim 3 , wherein the point light sources are disposed on the second portion.
7. The backlight assembly of claim 6 , wherein the second portion faces an inside of the side wall.
8. The backlight assembly of claim 6 , wherein the second portion faces an outside of the side wall, and a hole into which the point light sources are inserted is formed in the side wall.
9. The backlight assembly of claim 3 , wherein the first portion and the second portion comprise a metallic layer.
10. The backlight assembly of claim 9 , wherein the line portion comprises:
an insulating layer formed on the metallic layer;
an input line insulated from the metallic layer by the insulating layer, to apply the driving voltage to each point light source; and
a ground line insulated from the metallic layer by the insulating layer and electrically connected to the point light source, to output a feedback signal.
11. The backlight assembly of claim 3 , further comprising a reflective sheet disposed between the light guide plate and the first portion.
12. The backlight assembly of claim 3 , where the bottom plate comprises an opening portion, and wherein the first portion covers the opening portion.
13. A display apparatus comprising:
a receiving container including a bottom plate and a side wall extended from an edge of the bottom plate;
a back cover including a cover element including a first portion and a second portion, a plurality of point light sources mounted on the cover element, and a line portion formed over the cover element to apply a driving voltage to the point light sources, the second portion protruding from the first portion;
a light guide plate disposed over the first portion and the bottom plate;
an optical sheet disposed over the light guide plate; and
a display panel disposed over the optical sheet.
14. The display apparatus of claim 13 , wherein the first portion and the second portion comprise:
a metallic layer dissipating a heat that is generated from the point light sources to an outside of the display apparatus; and
an insulating layer formed on the metallic layer.
15. The display apparatus of claim 14 , wherein the line portion is insulated from metallic layer by the insulating layer, and the line portion comprises:
an input line applying the driving voltage to each point light source; and
a ground line electrically connected to each point light source, to output a feedback signal.
16. The display apparatus of claim 15 , further comprising a panel driving part applying a panel driving signal to the display panel, and electrically connected to the line portion to control the driving voltage.
17. The display apparatus of claim 13 , wherein the bottom plate comprises an opening portion, and wherein the first portion covers the opening portion.
18. A backlight assembly comprising:
a receiving container including a bottom plate and a side wall extended from an edge of the bottom plate, the bottom plate having an opening portion formed adjacent to the side wall; a light guide plate disposed on the bottom plate; and
a back cover including a cover element including a first portion and a plurality of point light sources mounted on the cover element to face a side surface of the light guide plate,
wherein the first portion covers the opening portion to partially support the light guide plate.
19. The backlight assembly of claim 18 , wherein the cover element further comprises a second portion, and
wherein the second portion extends from the first portion to face the side wall.
20. The backlight assembly of claim 18 , wherein the back cover further comprises a line portion formed over the cover element to apply a driving voltage to the point light sources.