Liquid crystal display device
View Patent ↗A liquid crystal display device includes: first and second liquid crystal cells; first and second circuit boards connected to the first and second liquid crystal cells through first and second flexible wiring boards, respectively; a frame disposed on an opposite side to the first liquid crystal cell with respect to the second liquid crystal cell; and a holder that holds the first circuit board and the second circuit board. The first circuit board and the second circuit board are disposed on an opposite side to the second liquid crystal cell with respect to the frame. The second circuit board is located closer to the frame than the first circuit board, and the holder sandwiches the first circuit board, and stores the second circuit board between the frame and the holder.
1. A liquid crystal display device comprising:
a first liquid crystal cell;
a first circuit board connected to the first liquid crystal cell through a first flexible wiring board;
a second liquid crystal cell opposite to the first liquid crystal cell;
a second circuit board connected to the second liquid crystal cell through a second flexible wiring board;
a frame disposed on an opposite side to the first liquid crystal cell with respect to the second liquid crystal cell; and
a holder that holds the first circuit board and the second circuit board,
wherein
the first circuit board and the second circuit board are disposed on an opposite side to the second liquid crystal cell with respect to the frame,
the second circuit board is located closer to the frame than the first circuit board,
the holder sandwiches the first circuit board, and stores the second circuit board between the frame and the holder,
the holder includes a first arm and a second arm to be coupled to one end of the first arm in a longitudinal direction and coupled to another end of the first arm in the longitudinal direction,
the first arm or the second arm is located between the first circuit board and the second circuit board,
the one end of the first arm is detachably coupled to the second arm,
the first arm is rotatable around the other end of the first arm as a rotating fulcrum,
the first circuit board is sandwiched between the first arm and the second arm, and
the second circuit board is disposed in a spatial region between the second arm and the frame.
2. The liquid crystal display device according to claim 1 , wherein
the one end of the first arm has a latching claw, and
the second arm has a latching body in which the latching claw is latched.
3. The liquid crystal display device according to claim 1 , wherein
the second arm includes a first surface facing the first arm and a second surface that is located closer to the frame than the first surface while being opposite to the first surface,
a pair of first protrusions disposed with a gap in a longitudinal direction of the second arm is provided in the first surface, and
the first circuit board is disposed between the pair of first protrusions.
4. The liquid crystal display device according to claim 3 , wherein
a pair of second protrusions disposed with a gap in the longitudinal direction of the second arm is provided in the second surface,
the second circuit board is disposed between the pair of second protrusions, and
the second circuit board is accommodated in a spatial region surrounded by the pair of second protrusions, the second arm, and the frame.
5. The liquid crystal display device according to claim 1 , wherein the first arm includes a first pressing portion that presses a main surface of the first circuit board in a direction toward a second arm.
6. The liquid crystal display device according to claim 1 , wherein the second arm includes a second pressing portion that presses a main surface of the second circuit board in a direction toward the frame.
7. The liquid crystal display device according to claim 1 , wherein when the liquid crystal display device is viewed from a back surface, a second end of the second circuit board on the opposite side to a first end to which the second flexible wiring board is connected is exposed from the first circuit board.
8. A liquid crystal display device comprising:
a first liquid crystal cell;
a first circuit board connected to the first liquid crystal cell through a first flexible wiring board;
a second liquid crystal cell opposite to the first liquid crystal cell;
a second circuit board connected to the second liquid crystal cell through a second flexible wiring board; and
a frame disposed opposite to the first liquid crystal cell with respect to the second liquid crystal cell,
wherein
the first circuit board and the second circuit board have substantially identical shape and size in planar view, and are located on a back surface side of the second liquid crystal cell,
the second circuit board is located closer to the frame than the first circuit board,
when the liquid crystal display device is viewed from a back surface, a second end of the second circuit board on an opposite side to a first end to which the second flexible wiring board is connected is exposed from the first circuit board,
a first spacer bolt is disposed between the first circuit board and the frame,
a second spacer bolt is disposed between the second circuit board and the frame, and
a height of the first spacer bolt is higher than a height of the second spacer bolt.
9. The liquid crystal display device according to claim 8 , wherein when the liquid crystal display device is viewed from the back surface, the second circuit board is entirely exposed from the first circuit board.