Method of manufacturing a liquid crystal display device comprising a light-transmitting reinforcing plate arranged on a front surface side of a liquid crystal display panel wherein a photocuring resin is irradiated from only a side surface of the photocuring resin
View Patent ↗A liquid crystal display panel including liquid crystal sandwiched between a pair of substrates is prepared. A light-transmitting reinforcing plate is prepared. A photocuring resin is provided between the liquid crystal display panel and the reinforcing plate. Light is irradiated to a side surface of a laminated body constituted of the liquid crystal display panel, the reinforcing plate and the photocuring resin. The photocuring resin is arranged to face the liquid crystal in an opposed manner. The light is allowed to advance to the inside of the photocuring resin from an edge portion of the photocuring resin. The light is allowed to advance to the inside of the reinforcing plate from an edge portion of the reinforcing plate, is propagated in the inside of the reinforcing plate, and is irradiated to the photocuring resin from the reinforcing plate at a position away from the edge portion of the reinforcing plate.
1. A method of manufacturing a liquid crystal display device which comprises: a liquid crystal display panel in which a sealing material is arranged between a pair of substrates such that the sealing material surrounds liquid crystal; a light-transmitting reinforcing plate which is arranged on a front surface side of the liquid crystal display panel; and a photocuring resin which is provided between the liquid crystal display panel and the light-transmitting reinforcing plate, the method of manufacturing the liquid crystal display device comprising:
irradiating light from outside of the liquid crystal display device to a side surface of a laminated body which is provided with the photocuring resin between the liquid crystal display panel and the light-transmitting reinforcing plate while avoiding the irradiating light from outside of the liquid crystal display device being incident onto a front surface side of the light-transmitting reinforcing plate, wherein
the photocuring resin is arranged to face the liquid crystal in an opposed manner,
enabling the irradiating light to advance to the inside of the photocuring resin from the side surface of the photocuring resin, and
enabling the irradiating light to advance to the inside of the light-transmitting reinforcing plate from the side surface of the light-transmitting reinforcing plate, to be propagated in the inside of the light-transmitting reinforcing plate, and to be irradiated to the photocuring resin from within the light-transmitting reinforcing plate at a position away from the side surface of the light-transmitting reinforcing plate.
2. The method of manufacturing a liquid crystal display device according to claim 1 , wherein
the light-transmitting reinforcing plate is provided with a frame-shaped picture frame layer made of a light blocking material on at least one surface of the light-transmitting reinforcing plate,
the light-transmitting reinforcing plate is arranged such that at least an inner surface portion of the frame-shaped picture frame layer faces the liquid crystal in an opposed manner, and
the photocuring resin is arranged to face at least the inner surface portion of the frame-shaped picture frame layer in an opposed manner.
3. The method of manufacturing a liquid crystal display device according to claim 2 , wherein
the light-transmitting reinforcing plate is arranged such that the picture frame layer faces the sealing material and a portion of the sealing material arranged adjacent to the liquid crystal.
4. The method of manufacturing a liquid crystal display device according to claim 2 , wherein the photocuring resin is arranged so as to avoid the photocuring resin facing the sealing material in an opposed manner.
5. The method of manufacturing a liquid crystal display device according to claim 3 , wherein the photocuring resin is arranged so as to avoid the photocuring resin facing the sealing material in an opposed manner.
6. The method of manufacturing a liquid crystal display device according to claim 2 , wherein the photocuring resin is arranged such that the photocuring resin faces the sealing material in an opposed manner, and reaches the outside over the sealing material.
7. The method of manufacturing a liquid crystal display device according to claim 3 , wherein the photocuring resin is arranged such that the photocuring resin faces the sealing material in an opposed manner, and reaches the outside over the sealing material.
8. The method of manufacturing a liquid crystal display device according to claim 1 , wherein at least one of the liquid crystal display panel and the light-transmitting reinforcing plate is prepared in a curved state, and
the photocuring resin is provided between the liquid crystal display panel and the light-transmitting reinforcing plate such that a thickness of the photocuring resin becomes largest at the side portion of the photocuring resin and is gradually decreased as a distance from the side portion is increased.
9. The method of manufacturing a liquid crystal display device according to claim 1 , wherein the light is irradiated from two directions which are opposite to each other to opposite side surfaces of the laminated body.
10. The method of manufacturing a liquid crystal display device according to claim 1 , wherein the irradiating light is irradiated from outside of the liquid crystal display device only to the side surface of the laminated body.