Liquid coating method, liquid coating device, and method of manufacturing radiation detector
AssigneeFUJIFILM Corporation
InventorsHiroshi Mataki, Hirotaka Watano, Seiichi Inoue
Life of this patent
Estimating the term…
Abstract
The liquid coating method includes the step of ejecting droplets from nozzles of a recording head onto an imaging region of a surface of a substrate placed on a support plate, wherein a dot pitch φ that is an interval between landing positions of the droplets on the surface of the substrate satisfies a following condition: ϕ ≤ 2 3 V ( 1 + cos θ a ) sin θ a π ( 1 - cos θ a ) ( 2 + cos θ a ) 3 where V stands for a volume of a droplet ejected from each of the nozzles and θa stands for an advancing contact angle of the droplet against the substrate.
Claims13
A liquid coating method comprising the steps of:
- ejecting droplets from nozzles of a recording head onto an imaging region of a surface of a substrate placed on a support plate;
- and
- controlling the recording head so that a dot pitch φ that is an interval between landing positions of the droplets on the surface of the substrate satisfies a following condition:
- ϕ
- ≤
- 2
-
- 3
-
- V
-
- (
- 1
- +
- cos
-
-
- θ
- a
- )
-
- sin
-
-
- θ
- a
- π
-
- (
- 1
- -
- cos
-
-
- θ
- a
- )
-
- (
- 2
- +
- cos
-
-
- θ
- a
- )
- 3
- where V stands for a volume of a droplet ejected from each of the nozzles and φa stands for an advancing contact angle of the droplet against the substrate, and
- controlling scanning of the recording head so that a nozzle pitch of the recording head, which is an interval along a direction perpendicular to a scanning direction along which the recording head is scanned, is an integral multiple of the dot pitch φ.
A liquid coating device comprising:
- a support plate onto which a substrate is placed;
- a recording head having a plurality of nozzles that eject droplets on an imaging region of a surface of the substrate placed on the support plate;
- and
- a control device which controls an ejection amount from the recording head in such a manner that a volume V of a droplet ejected from each of the plurality of nozzles of the recording head onto the substrate satisfies a following condition:
- V
- ≥
- π
- 24
-
- (
- 1
- -
- cos
-
-
- θ
- a
- )
-
- (
- 2
- +
- cos
-
-
- θ
- a
- )
- (
- 1
- +
- cos
-
-
- θ
- a
- )
-
- sin
-
-
- θ
- a
-
- ϕ
- 3
- where θa stands for an advancing contact angle of the droplet against the substrate and φ stands for a dot pitch that is an interval between landing positions of the droplets on the surface of the substrate.
A method of manufacturing a radiation detector which has:
- a first electrode that transmits a radiation that carries image information;
- a photoconductive layer that generates an electric charge when irradiated with the radiation transmitted through the first electrode;
- a second electrode that is provided on a side opposite to a side where the first electrode is provided with respect to the photoconductive layer and that collects the electric charge generated by the photoconductive layer;
- and an organic polymer layer provided between the photoconductive layer and the first electrode,
- the method comprising the step of forming the organic polymer layer using the liquid coating method comprising the steps of:
- ejecting droplets from nozzles of a recording head onto an imaging region of a surface of a substrate placed on a support plate;
- controlling the recording head so that a dot pitch φ that is an interval between landing positions of the droplets on the surface of the substrate satisfies a following condition:
- ϕ
- ≤
- 2
-
- 3
-
- V
-
- (
- 1
- +
- cos
-
-
- θ
- a
- )
-
- sin
-
-
- θ
- a
- π
-
- (
- 1
- -
- cos
-
-
- θ
- a
- )
-
- (
- 2
- +
- cos
-
-
- θ
- a
- )
- 3
- where V stands for a volume of a droplet ejected from each of the nozzles and θa stands for an advancing contact angle of the droplet against the substrate, and
- controlling scanning of the recording head so that a nozzle pitch of the recording head, which is an interval along a direction perpendicular to a scanning direction along which the recording head is scanned, is an integral multiple of the dot pitch φ.
Dependencies are inferred from the claim text.