Abstract: A screen is manufactured by a partial screen manufacturing process, a cutting process, and a bonding process. In the partial screen manufacturing process, partial screens adapted to constitute the screen and each having a plurality of lens elements arranged on a surface are manufactured. In the cutting process, the partial screens are each cut. In the bonding process, the partial screens are bonded to each other on the cutting surfaces of the partial screens thus cut. Thus, since the shape of the molding die for forming the screen can be made smaller, the manufacturing process can be simplified.

Abstract: A screen is manufactured by a partial screen manufacturing process, a cutting process, and a bonding process. In the partial screen manufacturing process, partial screens adapted to constitute the screen and each having a plurality of lens elements arranged on a surface are manufactured. In the cutting process, the partial screens are each cut. In the bonding process, the partial screens are bonded to each other on the cutting surfaces of the partial screens thus cut. Thus, since the shape of the molding die for forming the screen can be made smaller, the manufacturing process can be simplified.

Abstract: A liquid crystal display device includes a first substrate and a second substrate that are disposed to face each other, a liquid crystal layer that is pinched by the first substrate and the second substrate, a phase difference layer that is disposed on a side of the second substrate which is located on the liquid crystal layer side, a protection layer that covers a face of the phase difference layer that faces the first substrate and a side face of the phase difference layer that is connected to the face of the phase difference layer so as to be brought into contact with a base face that becomes a base of the phase difference layer, and a spacer that is disposed in a position for being overlapped with the protection layer and maintains the first substrate and the second substrate to be spaced apart by a predetermined gap. The hardness of the protection layer is higher than that of the phase difference layer.

Abstract: A thermal transfer type image formation device employs a new regeneration method for reconditioning ink sheets employed in the thermal inking process. The ink sheet has a transparent base layer, which also serves as a dielectric layer, an ink layer and a transparent conductive layer, functioning also as an electrode, on a side of the base layer opposite the ink layer. A fixing device is provided for the transfer of photoconductive powder ink to bare areas of the ink sheet to be rejuvenated. A bias voltage is impressed on the photoconductive powder ink, and the photoconductive powder ink which comes in contact with bare areas becomes conductive when exposed with light through the transparent conductive layer and ink adheres to the base layer due to an established electrostatic force between the ink and the conductive layer electrode on the light exposing side of the ink sheet.

Abstract: A photoconductive image forming apparatus in which charged photoconductive toner contacts a transparent insulating substrate and is exposed from within the substrate. Exposure reduces the resistivity of the toner so that its charge can be reversed by a bias voltage and the exposed toner will adhere to the image forming substrate simultaneously with exposure and then transfer to a transfer medium. In an alternative embodiment of the invention, a layer of toner is applied to an electroconductive substrate and the toner layer is exposed with a latent image. The charge of the exposed toner is reversed and the exposed toner is removed by an intermediate toner removal device. The remaining toner is then transferred to a transfer medium. Toner suitable for use includes azo-type metal containing black dyes which do not absorb the exposure and can be sensitized to the near infrared region.

Abstract: A combination toner for xerographic image formation having conductive portions and insulating portions is provided. The conductive portions function to accumulate a charge in the toner particles and the insulating portions function to lengthen the period of discharge of the accumulated charge. The toner can be either magnetic or non-magnetic and improves image formation and transfer.

Abstract: A photoconductive image forming method in a which charged toner contacts a transparent insulating substrate and is exposed from within the substrate. Exposure reduces the resistivity of the toner so that its charge can be reversed by a bias voltage and the exposed toner will adhere to the image forming substrate simultaneously with exposure and then transfer to a transfer medium. In an alternative embodiment of the invention, a layer of toner is applied to an electroconductive substrate and the toner layer is exposed with a latent image. The charge of the exposed toner is reversed and the exposed toner is removed by an intermediate toner removal device. The remaining toner is then transferred to a transfer medium. Toner suitable for use includes azo-type metal containing black dyes which do not absorb the exposure and can be sensitized to the near infrared region.