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US 11,537,003 B2Granted
Backlight module and display device
AssigneesK-Tronics (Suzhou) Technology Co., Ltd., Beijing BOE Technology Development Co., Ltd.
InventorsYufei Du, Yurong Cao, Chuanwei Zhang, Zhi Yin
Life of this patent
Estimating the term…
Abstract
Disclosed are a backlight module and a display device. An optical film includes a main body portion and at least one fixing portion connected to the main body portion, the main body portion is fixed to a light exit surface of a light guide plate, and the fixing portion is snap-fitted to a fixing surface of the light guide plate; the fixing portion is snap-fitted to the fixing surface of the light guide plate.
Claims18
A backlight module, comprising:
- a light guide plate, comprising a light incident surface and a light exit surface adjacent to each other, and at least one fixing surface adjacent to the light exit surface;
- an edge-lit light source, located on a side of the light incident surface of the light guide plate;
- and
- an optical film, comprising a main body portion and at least one fixing portion connected to the main body portion, wherein the main body portion is fixed to the light exit surface of the light guide plate, and the at least one fixing portion is snap-fitted to the at least one fixing surface of the light guide plate;
- wherein the optical film further comprises a fourth fixing portion connected to the main body portion;
- the fourth fixing portion is snap-fitted to a side, facing away from the light incident surface of the light guide plate, of the edge-lit light source;
- wherein the backlight module further comprises:
- a first reflective layer located on a side of a bottom surface of the light guide plate, a back plate located on a side, facing away from the light guide plate, of the first reflective layer, and a heat dissipation structure;
- the back plate comprises a bottom plate and a side plate connected to each other, wherein the bottom plate is located on the side, facing away from the light guide plate, of the first reflective layer, and the side plate covers an outer side of a side edge of the light guide plate;
- the heat dissipation structure comprises a first heat dissipation portion and a second heat dissipation portion connected to each other, wherein the first heat dissipation portion and the second heat dissipation portion form an “L” shape, the first heat dissipation portion is located between the first reflective layer and the bottom plate, and the second heat dissipation portion is located between the edge-lit light source and the side plate;
- and
- the fourth fixing portion is snap-fitted between the second heat dissipation portion and the side plate, or the fourth fixing portion is snap-fitted to a side, facing away from the second heat dissipation portion, of the side plate.
9 more elements
A display device, comprising:
- a backlight module and a liquid crystal display panel located on a light exit surface of the backlight module, wherein the backlight module comprises:
- a light guide plate, comprising a light incident surface and a light exit surface adjacent to each other, and at least one fixing surface adjacent to the light exit surface;
- an edge-lit light source, located on a side of the light incident surface of the light guide plate;
- and
- an optical film, comprising a main body portion and at least one fixing portion connected to the main body portion, wherein the main body portion is fixed to the light exit surface of the light guide plate, and the at least one fixing portion is snap-fitted to the at least one fixing surface of the light guide plate;
- wherein the optical film further comprises a fourth fixing portion connected to the main body portion;
- the fourth fixing portion is snap-fitted to a side, facing away from the light incident surface of the light guide plate, of the edge-lit light source;
- wherein the backlight module further comprises:
- a first reflective layer located on a side of a bottom surface of the light guide plate, a back plate located on a side, facing away from the light guide plate, of the first reflective layer, and a heat dissipation structure;
- the back plate comprises a bottom plate and a side plate connected to each other, wherein the bottom plate is located on the side, facing away from the light guide plate, of the first reflective layer, and the side plate covers an outer side of a side edge of the light guide plate;
- the heat dissipation structure comprises a first heat dissipation portion and a second heat dissipation portion connected to each other, wherein the first heat dissipation portion and the second heat dissipation portion form an “L” shape, the first heat dissipation portion is located between the first reflective layer and the bottom plate, and the second heat dissipation portion is located between the edge-lit light source and the side plate;
- and
- the fourth fixing portion is snap-fitted between the second heat dissipation portion and the side plate, or the fourth fixing portion is snap-fitted to a side, facing away from the second heat dissipation portion, of the side plate.
10 more elements
Dependencies are inferred from the claim text.