Display apparatus with backlight unit and method of fabricating backlight unit
AssigneeSamsung Display Co., Ltd.
InventorsKYOUNGHO PARK, Jongchul Choi
Life of this patent
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Abstract
A display apparatus includes a display panel and a backlight unit. The backlight unit includes a light source and a light guide plate that is configured to receive the light from the light source. Optical sheets are disposed on the light guide plate. The light guide plate includes first and second sections that have different compositions. The second section is disposed between the light source and the first section. The first section has a uniform thickness while the second section is thicker by the light source than by the first section.
Claims20
A display apparatus, comprising:
- a display panel;
- and
- a backlight unit configured to provide light to the display panel,
- wherein the backlight unit comprises:
- a light source portion configured to produce light, the light source portion comprising a light source and a supporting part;
- a light guide plate configured to receive the light from the light source portion, and to direct the received light toward the display panel;
- and
- one or more optical sheets disposed on the light guide plate,
- wherein the light guide plate comprises:
- a first section disposed below the display panel and having a first side surface;
- and
- a second section comprising an incidence surface facing to the light source portion, and a second side surface, which is opposite to the incidence surface and is coupled to the first side surface of the first section,
- wherein the first section has a different composition from that of the second section, and
- wherein the first side surface of the first section is thinner than the incidence surface of the second section.
A method of fabricating a backlight unit, comprising:
- preparing a first light guide plate, which has a first composition and includes a first side surface;
- forming a second light guide plate, which includes a second composition, different from the first composition, and includes an incidence surface, a second side surface, and an inclined surface, the second side surface being opposite to the incidence surface and having a vertical length that is less than that of the incidence surface, the second side surface being coupled to the first side surface of the first light guide plate, the inclined surface of the second light guide plate being between the incidence surface and the second side surface and having a vertical length increasing closer to the incidence surface;
- providing a light source to face the incidence surface of the second light guide plate;
- and
- providing one or more optical sheets on the first light guide plate and the second light guide plate.
A method of fabricating a backlight unit, comprising:
- preparing a first light guide plate, having a first composition and including a first side surface;
- preparing a light source including a light emitting surface;
- forming a second light guide plate, having a second composition different from the first composition and including an incidence surface, a second side surface, and an inclined surface;
- and
- placing one or more optical sheets on the first light guide plate and the second light guide plate,
- wherein the incidence surface is coupled to the light emitting surface of the light source,
- wherein the second side surface is opposite to the incidence surface,
- wherein a vertical height of the second side surface is less than that of the incidence surface,
- wherein the second side surface is coupled to the first side surface, and
- wherein the inclined surface is between the incidence surface and the second side surface and is inclined to have a vertical height that increases closer to the incidence surface.
Dependencies are inferred from the claim text.