LIGHT-EMITTING DEVICE AND DISPLAY DEVICE INCLUDING THE SAME
A light-emitting device and a display device are provided. The light-emitting device includes a substrate, a light-emitting array, and a plurality of first color conversion points. The light-emitting array is disposed on the substrate and includes a plurality of light-emitting units. Each one of the plurality of light-emitting units includes a LED die and an encapsulating portion. The LED die is disposed on the substrate. The encapsulating portion is disposed on the substrate and covers the LED die. The plurality of first color conversion points is disposed on the substrate and surrounds the light-emitting array. The plurality of first color conversion points includes a first wavelength conversion material.
1 . A light-emitting device, comprising:
a substrate;
a light-emitting array disposed on the substrate and comprising a plurality of light-emitting units, wherein each one of the plurality of light-emitting units comprises:
a LED die disposed on the substrate; and
an encapsulating portion disposed on the substrate and covering the LED die; and
a plurality of first color conversion points disposed on the substrate and surrounding the light-emitting array, wherein the plurality of first color conversion points comprises a first wavelength conversion material.
2 . The light-emitting device as claimed in claim 1 , wherein
each encapsulating portion has a height and a bottom width, wherein the height is less than the bottom width,
each first color conversion point has a first height and a first bottom width, wherein the first height is less than the first bottom width,
the bottom width is less than the first bottom width, and
the height is less than the first height.
3 . The light-emitting device as claimed in claim 2 , wherein
a ratio of the height to the bottom width of each encapsulating portion is 0.27-0.44.
4 . The light-emitting device as claimed in claim 2 , wherein
a ratio of the first height to the first bottom width of each first color conversion point is 0.25-0.43.
5 . The light-emitting device as claimed in claim 2 , wherein
a ratio of the first bottom width of each first color conversion point to the bottom width of each encapsulating portion is 1-1.5.
6 . The light-emitting device as claimed in claim 2 , wherein
a ratio of the first height of each first color conversion point to the height of each encapsulating portion is 1-1.5.
7 . The light-emitting device as claimed in claim 2 , further comprising:
a plurality of second color conversion points disposed on the substrate and surrounding the light-emitting array together with the plurality of first color conversion points,
wherein each one of the plurality of second color conversion points is disposed between the adjacent first color conversion points, and the plurality of second color conversion points comprises a second wavelength conversion material.
8 . The light-emitting device as claimed in claim 7 , wherein
each second color conversion point has a second height and a second bottom width, the second height is less than the second bottom width, and
the second height of each second color conversion point is less than the height of each encapsulating portion, and the second bottom width of each second color conversion point is less than the bottom width of each encapsulating portion.
9 . The light-emitting device as claimed in claim 8 , wherein a ratio of the second height to the second bottom width of each second color conversion point is 0.13-0.22.
10 . The light-emitting device as claimed in claim 7 , further comprising:
a plurality of third color conversion points disposed on the substrate, wherein each one of the plurality of third color conversion points is disposed between the adjacent light-emitting units, the plurality of first color conversion points and the plurality of second color conversion points together surround the plurality of third color conversion points, and the plurality of third color conversion points comprises a third wavelength conversion material.
11 . The light-emitting device as claimed in claim 10 , wherein
each third color conversion point has a third height and a third bottom width, and the third height is less than the third bottom width,
the third height of each third color conversion point is less than the height of each encapsulating portion, and the third bottom width of each third color conversion point is less than the bottom width of each encapsulating portion, and
a ratio of the third height to the third bottom width of each third color conversion point is 0.13-0.22.
12 . The light-emitting device as claimed in claim 1 , wherein each encapsulating portion comprises a fourth wavelength conversion material.
13 . The light-emitting device as claimed in claim 1 , further comprising:
a plurality of light-guiding structures disposed on the substrate, wherein each one of the plurality of light-guiding structures is disposed on a diagonal line between the adjacent light-emitting units.
14 . The light-emitting device as claimed in claim 13 , wherein
each light-guiding structure has a fourth height and a fourth bottom width, and the fourth height is less than the fourth bottom width,
a ratio of the fourth height to the fourth bottom width of each light-guiding structure is 0.13-0.22.
15 . The light-emitting device as claimed in claim 13 , wherein each light-guiding structure is disposed at a center position of the diagonal line.
16 . The light-emitting device as claimed in claim 13 , wherein the plurality of light-guiding structures comprises a light-transmitting material.
17 . The light-emitting device as claimed in claim 16 , wherein the plurality of light-guiding structures further comprises filling particles dispersed in the light-transmitting material.
18 . The light-emitting device as claimed in claim 17 , wherein a volume of the filling particles accounts for 10% to 70% of a total volume of the light-guiding structure.
19 . The light-emitting device as claimed in claim 1 , wherein the substrate comprises two opposite first sides and two opposite second sides, the first sides intersect the second sides, and the plurality of first color conversion points is arranged along the first sides and the second sides of the substrate to surround the light-emitting array.
20 . A display device, comprising:
a light-emitting device as claimed in claim 1 .