Liquid crystal display and method of manufacturing the same
View Patent ↗A liquid crystal display includes: a pair of substrates having display regions in positions facing each other and surrounding regions around the display regions, respectively, one of the pair of substrates including a wire made of a material blocking an ultraviolet ray in the surrounding region; a liquid crystal layer sandwiched between the pair of substrates; and a sealing layer arranged so as to overlap a part or the whole of the wire in a direction where the pair of substrates face each other, and sealing the liquid crystal layer, in which the sealing layer is made of a light-curable resin or a combination type resin and includes a photopolymerization initiator, and the content of the photopolymerization initiator is within a range of 0.01 wt % to 1 wt %, and the photopolymerization initiator has a wavelength peak of 320 nm to 420 nm.
1. A liquid crystal display comprising:
a pair of substrates having display regions in positions facing each other and having surrounding regions around the display regions, respectively, one of the pair of substrates including a wire made of a material blocking an ultraviolet ray in the surrounding region;
a liquid crystal layer sandwiched between the pair of substrates; and
a sealing layer arranged so as to overlap a part or the whole of the wire in a direction where the pair of substrates face each other, and sealing the liquid crystal layer,
wherein the sealing layer is made of a light-curable resin or a combination type resin and includes a photopolymerization initiator, and
the content of the photopolymerization initiator is within a range of 0.01 wt % to 1 wt %, in which wt % is weight percent, and the photopolymerization initiator has a wavelength peak within a range of 320 nm to 420 nm.
2. The liquid crystal display according to claim 1 , wherein
the wire has an opening.
3. The liquid crystal display according to claim 2 , wherein
a transparent conductive layer allowing an ultraviolet ray to pass therethrough is buried in the opening of the wire.
4. The liquid crystal display according to claim 1 , wherein
one or both of the pair of substrates have a light-shielding film, and the light-shielding film and the sealing layer overlap each other in a direction where the pair of substrates face each other.
5. A method of manufacturing a liquid crystal display comprising the steps of:
forming a sealing layer with a ring shape in a surrounding region of one of a pair of substrates, the sealing layer being made of a light-curable resin or a combination type resin, the pair of substrates having display regions in positions facing each other and having the surrounding regions around the display regions, respectively, one of the pair of substrates including a wire made of a material blocking an ultraviolet ray in the surrounding region;
dropping a liquid crystal in a region surrounded by the sealing layer;
superimposing the pair of substrates under a reduced pressure, and then returning the pressure to an atmospheric pressure, thereby to form a liquid crystal layer between the pair of substrates; and
curing the sealing layer by light irradiation after forming the liquid crystal layer,
wherein the light-curable resin or the combination type resin includes a photopolymerization initiator, and
the content of the photopolymerization initiator is within a range of 0.01 wt % to 1 wt %, in which wt % is weight percent, and the photopolymerization initiator has a wavelength peak within a range of 320 nm to 420 nm.