Electro-optical apparatus, flexible printed circuit board, manufacturing method for electro-optical apparatus, and electronic equipment
View Patent ↗A liquid crystal display device includes a liquid crystal display panel having a first substrate and a second substrate opposed thereto arranged so that the inner surfaces thereof oppose each other with an intermediate sealing member and a liquid crystal interposed in the internal space, and a flexible printed circuit board having an input/output terminals connected thereto. A circuit board on which a plurality of electronic components required for operating the liquid crystal display apparatus are mounted on the flexible printed circuit board.
1. An electro-optical apparatus comprising:
an electro-optical panel having a display section;
a flexible printed circuit board having a first terminal and a second terminal;
the first terminal connected to the electro-optical panel and the second terminal connected to an external circuit;
a rigid circuit board including a first surface with a first circuit pattern formed thereon, and a second surface with a second circuit pattern formed thereon, the second surface is opposite to the first surface;
wherein the first surface is mounted to the flexible printed circuit board and electronic components are mounted to the second surface; and
an entirety of the rigid circuit board is stacked on the flexible printed circuit board, and the rigid circuit board is electrically connected to the flexible printed circuit board and wherein the flexible printed circuit board has a first bent portion and a second bent portion, the rigid circuit board is arranged between the first bent portion and second bent portion, the first bent portion is arranged between the first terminal and the rigid circuit board, and the second bent portion is arranged between the second terminal and the rigid circuit board.
2. The electro-optical apparatus according to claim 1 , wherein the rigid circuit board comprises one of a single-layer substrate or a multi-layer substrate.
3. The electro-optical apparatus according to claim 1 , further comprising:
a lighting unit including a light source and a guiding member for directing light from the light source toward the electro-optical panel;
the electro-optical panel including a pair of substrates arranged so as to oppose each other via a sealing member;
the electro-optical panel overlaps at least the guiding member in plan; and
the flexible printed circuit board being electrically connected to one of the pair of substrates and being bent toward the light source unit.
4. The electro-optical apparatus according to claim 1 , wherein the rigid circuit board is arranged inside the flexible printed circuit board.
5. The electro-optical apparatus according to claim 3 , wherein the rigid circuit board is arranged so as to oppose one of: at least one of the substrates; and a side surface of the lighting unit.
6. The electro-optical apparatus according to claim 1 , wherein the rigid circuit board is arranged outside the flexible printed circuit board.
7. Electronic equipment including the electro-optical apparatus according to claim 1 mounted therein.
8. The electro-optical apparatus of claim 1 , wherein the rigid circuit board includes a plate.