Backlight module and display device
AssigneeBoe Technology Group Co., Ltd.
InventorsShang Wang, Qiuxiang Li
Life of this patent
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Abstract
The present invention provides a backlight module and a display device. The backlight module includes a back plate; a light-emitting chip formed on the back plate and capable of emitting light rays of a first color; a packaging entity made of a light-transmitting material and configured to package the light-emitting chip onto the back plate; and a phosphor layer formed in the packaging entity and consisting of phosphors doped in the packaging entity. The phosphor layer is configured to convert a part of light rays among the light rays of the first color emitted from the light-emitting chip into light rays of a second color, so as to be mixed with the remaining, unconverted light rays of the first color to form white backlight.
Claims20
A backlight module, comprising:
- a back plate;
- a light-emitting chip formed on the back plate and capable of emitting light rays of a first color;
- a packaging entity made of a light-transmitting material and configured to package the light-emitting chip onto the back plate;
- and
- a phosphor layer formed in the packaging entity and consisting of phosphors doped in the packaging entity, the phosphor layer being configured to convert a part of light rays among the light rays of the first color emitted from the light-emitting chip into light rays of a second color, so as to be mixed with the remaining, unconverted light rays of the first color to form a white backlight;
- wherein the phosphor layer is divided into a plurality of phosphor unit regions corresponding to the light-emitting chip, and each of the plurality of phosphor unit regions comprises a middle portion and an edge portion located at an edge of the middle portion, wherein,
- the phosphor unit region is of a curved-surface layer structure with its middle portion protruding toward a side away from the light-emitting chip, and/or
- the phosphor unit region has a thickness gradually decreased from the middle portion to the edge portion, and/or
- the phosphors in the phosphor unit region have a density gradually decreased from the middle portion to the edge portion.
A backlight module, comprising:
- a back plate;
- a light-emitting chip formed on the back plate and capable of emitting light rays of a first color;
- a packaging entity made of a light-transmitting material and configured to package the light-emitting chip onto the back plate;
- a phosphor layer formed in the packaging entity and consisting of phosphors doped in the packaging entity, the phosphor layer being configured to convert a part of light rays among the light rays of the first color emitted from the light-emitting chip into light rays of a second color, so as to be mixed with the remaining, unconverted light rays of the first color to form a white backlight;
- and
- a plurality of reflective walls arranged at both sides of the light-emitting chip in an array form and configured to reflect the light rays emitted from the light-emitting chip so as to converge the divergent light rays from the light-emitting chip.
Dependencies are inferred from the claim text.