Illumination apparatus, liquid-crystal display apparatus, and electronic device
View Patent ↗An illumination apparatus includes: a light-guiding plate; a plurality of light-emitting elements disposed along a side-end surface of the light-guiding plate that serves as a light-entry portion, each of the plurality of light-emitting elements has a light-emitting surface which faces toward the light entry portion; a light source substrate, disposed and separated with a space from the light entry portion of the light-guiding plate when viewed from above, that includes a mounting surface for the plurality of light-emitting elements, the mounting surface being orthogonal to the side-end surface serving as the light entry portion; and a step portion with which an end portion of the light source substrate located toward the light-guiding plate makes contact.
1. An illumination device comprising:
a light-guiding member;
a plurality of light-emitting elements disposed along a side-end surface of the light-guiding member that serves as a light-entry portion, each of the plurality of light-emitting elements has a light-emitting surface which faces toward the light-entry portion;
a light source substrate, disposed and separated with a space from the light-entry portion of the light-guiding member when viewed from above that includes a mounting surface for the plurality of light-emitting elements, the mounting surface being orthogonal to the side-end surface serving as the light-entry portion; and
a frame having a base plate portion on a side of the light-guiding member that is opposite to the direction in which a light is emitted from the light-guiding member,
the frame forming a step portion with which an end portion of the light source substrate located toward the light-guiding member makes contact, the step portion positioned between the light-entry portion of the light-guiding member and the light-emitting surface when viewed from above.
2. The illumination device according to claim 1 , further comprising:
a light-reflecting member being positioned between the light-guiding member and the frame,
wherein the step portion overlaps with a side end of the light-reflecting member.
3. The illumination device according to claim 1 , further comprising:
a light-reflecting member being positioned between the light-guiding member and the frame,
wherein the step attaches to a side end of the light-reflecting member.
4. The illumination apparatus according to claim 1 ,
wherein an end portion of each of the plurality of the light-emitting elements on an opposite side as the light source substrate is positioned lower than a light emission surface of the light-guiding member.
5. The illumination apparatus according to claim 1 ,
wherein a depth dimension of the step portion is equal to a thickness dimension of the light source substrate.
6. The illumination apparatus according to claim 1 ,
wherein a depth dimension of the step portion is smaller than a thickness dimension of the light source substrate.
7. The illumination apparatus according to claim 1 ,
wherein the light-emitting surface of each of the plurality of the light-emitting elements is located closer toward the light-guiding member than the end portion of the light source substrate that is located toward the light-guiding member.
8. A electro-optical apparatus provided with the illumination device according to claim 1 , the electro-optical apparatus comprising:
a liquid-crystal panel disposed overlapping a light-emitting portion of the light-guiding member.
9. An electronic device comprising the electro-optical apparatus according to claim 8 .