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1
WO2010134303A1
Publication/Patent Number: WO2010134303A1
Publication date: 2010-11-25
Application number: 2010003256
Filing date: 2010-05-13
Abstract: Provided is a method for manufacturing an organic electroluminescent display apparatus that includes a substrate and a plurality of pixels each including two or more types of sub-pixels
2
WO2008093862A1
Publication/Patent Number: WO2008093862A1
Publication date: 2008-08-07
Application number: 2008051714
Filing date: 2008-01-29
Abstract: There are provided a display apparatus that can display an image having higher resolution feeling while solving the problem of patterning precision for sub pixels which is difficult to obtain in production
3
US20040023140A1
Publication/Patent Number: US20040023140A1
Publication date: 2004-02-05
Application number: 10/427,901
Filing date: 2003-05-02
Abstract: A light-receiving member comprising a conductive substrate, and formed superposingly thereon a photosensitive layer and a surface protective layer in order. The light-receiving member has a surface roughness Ra of from 15 nm to 100 nm. Also disclosed is an image-forming apparatus having such a light-receiving member, and an image-forming method of rendering visible an electrostatic pattern formed on the light-receiving member. The light-receiving member promises stable formation of images over a long period of time. A light-receiving member comprising a conductive substrate, and formed superposingly thereon a photosensitive layer and a surface protective layer in order. The light-receiving member has a surface roughness Ra of from 15 nm to 100 nm. Also disclosed is an image-forming ...more ...less
4
US20030049556A1
Publication/Patent Number: US20030049556A1
Publication date: 2003-03-13
Application number: 10/106,440
Filing date: 2002-03-27
Abstract: In an electrophotographic process using an amorphous silicon photosensitive member which has a surface protective layer and effecting reverse development and cleaning with a cleaning blade, the surface moving speed PS (mm/sec) of the photosensitive member is 320 mm/sec or more and a film thickness and a specific resistance value of the surface protective layer are respectively Ds (&mgr;m) and Rs (&OHgr;·cm) which fulfill the following conditions: 1.0×109≦Rs≦1.0×1013Ds≦−0.136Ln(Rs)+(−0.004×PS+6). In an electrophotographic process using an amorphous silicon photosensitive member which has a surface protective layer and effecting reverse development and cleaning with a cleaning blade, the surface moving speed PS (mm/sec) of the photosensitive member is 320 mm/sec or more ...more ...less
5
US20020037464A1
Publication/Patent Number: US20020037464A1
Publication date: 2002-03-28
Application number: 09/859,422
Filing date: 2001-05-18
Abstract: To provide a Si photosensitive member and an image forming apparatus which prevents toner adherence at the time of cleaning and forms an excellent image, an electrophotographic photosensitive member comprising a photoconductive layer including amorphous Si and a surface protective layer which are formed on an electroconductive substrate has a difference in the height of concave and convex corresponding to 90% and 50% of a cumulative frequency of the height of concave and convex with respect to the most deepest point of surface roughness concave and convex within a range of 10 &mgr;m×10 &mgr;m of the photosensitive member as a standard which is set within a range of 3 nm to 200 nm. To provide a Si photosensitive member and an image forming apparatus which prevents toner adherence at the time of cleaning and forms an excellent image, an electrophotographic photosensitive member comprising a photoconductive layer including amorphous Si and a surface ...more ...less
6
US20020168859A1
Publication/Patent Number: US20020168859A1
Publication date: 2002-11-14
Application number: 10/059,139
Filing date: 2002-01-31
Abstract: A process for producing an electrophotographic photosensitive member comprising the steps of depositing a non-single crystal material composed basically of silicon atoms, on a cylindrical substrate in a deposition chamber, thereafter once taking the substrate with film out of the deposition chamber, then returning it to the deposition chamber, and thereafter again depositing thereon a non-single-crystal material composed basically of carbon atoms. In another embodiment, the process comprises the steps of depositing on a cylindrical substrate a photoconductive layer formed of a non-single crystal material, subjecting to surface processing the deposited film having protrusions present at its surface, and depositing on the processed surface a surface protective layer formed of a non-single-crystal material. Also disclosed is the electrophotographic photosensitive member thus obtained, and an electrophotographic apparatus having that member. A process for producing an electrophotographic photosensitive member comprising the steps of depositing a non-single crystal material composed basically of silicon atoms, on a cylindrical substrate in a deposition chamber, thereafter once taking the substrate with film out of ...more ...less
7
US20020051920A1
Publication/Patent Number: US20020051920A1
Publication date: 2002-05-02
Application number: 09/911,611
Filing date: 2001-07-25
Abstract: Provided are an electrophotographic method and an electrophotographic apparatus that can reduce ghost memory latent in an a-Si photosensitive member, relieve potential unevenness, and provide image copies with high quality. In an electrophotographic process of forming a toner image at least through decharging of a photosensitive member as a recording element, charging, exposing, developing, and transferring, at least a light-receiving layer of the photosensitive member is comprised of an amorphous material; a latent image is formed by the exposing with a light; the light has such a peak wavelength in an emission spectrum as to make minimum a value of optical memory at a unit contrast potential; and the decharging is implemented by use of a light having a full width at half maximum of a peak in an emission spectrum of not more than 50 nm. Provided are an electrophotographic method and an electrophotographic apparatus that can reduce ghost memory latent in an a-Si photosensitive member, relieve potential unevenness, and provide image copies with high quality. In an electrophotographic process of forming a toner ...more ...less
8
US20020018949A1
Publication/Patent Number: US20020018949A1
Publication date: 2002-02-14
Application number: 09/819,759
Filing date: 2001-03-29
Abstract: An a-Si photosensitive member and an image forming apparatus are provided which prevent fusion bonding in digital copying machines and attain satisfactory image formation. Specifically, in order that even when uneven abrasion occurs on a drum surface layer, it may not substantially affect the image, a photosensitive member formed by successively stacking on a conductive substrate a photoconductive layer comprising amorphous Si and a surface protective layer comprised of an amorphous material is provided such that the spectral reflectance (%) satisfies the relation of 0≦(Max−Min)/(Max+Min)≦0.20, and a center line average roughness Ra1 of the interface on the surface side of the photoconductive layer and the center line average roughness Ra2 of the outermost surface of the surface layer, within the range of 10 &mgr;m×10 &mgr;m, satisfy the relations of Ra1/Ra2≧1.3 and 22 nm≦Ra1≦100 nm. An a-Si photosensitive member and an image forming apparatus are provided which prevent fusion bonding in digital copying machines and attain satisfactory image formation. Specifically, in order that even when uneven abrasion occurs on a drum surface layer, it may not ...more ...less
9
US20020034700A1
Publication/Patent Number: US20020034700A1
Publication date: 2002-03-21
Application number: 09/861,579
Filing date: 2001-05-22
Abstract: To provide an amorphous Si photosensitive member and an image forming apparatus which form favorable images by preventing toner adhesion at a cleaning time. A photoconductive layer 102 containing amorphous Si is formed on an electrically conductive substrate 101 so that a surface of a photosensitive member has an average inclination &Dgr;a within a range of 0.12 to 1.0, more preferably 0.15 to 0.8 within a range of 10 &mgr;m×10 &mgr;m, and an electrically conductive substrate has surface roughness Ra within the range of 10 &mgr;m×10 &mgr;m is lower than 9 nm, preferably lower than 6 nm. To provide an amorphous Si photosensitive member and an image forming apparatus which form favorable images by preventing toner adhesion at a cleaning time. A photoconductive layer 102 containing amorphous Si is formed on an electrically conductive substrate 101 so that a ...more ...less
10
US20020006572A1
Publication/Patent Number: US20020006572A1
Publication date: 2002-01-17
Application number: 09/842,041
Filing date: 2001-04-26
Abstract: An electrophotographic image process is provided. In this process, a latent image is formed on a photosensitive drum 1, and a toner image is formed on the latent image. The toner image is temporarily transferred onto an intermediate image-transfer member 20. The photosensitive drum 1 and the intermediate image-transfer medium are brought into contact at an intended contact pressure, and are rotated at an intended relative speed. At the contact portion, fine vibration of the photosensitive drum 1 and the intermediate image-transfer medium 20 which can be caused by repeated contact and separation is prevented by controlling the contact temperature between the photosensitive member and the intermediate image-transfer member to be in the range from 15 to 60° C., and a kinetic frictional deviation (a standard deviation of kinetic frictional force) is controlled to be less than the average value of the kinetic frictional force. By suppressing the fine vibration, deviation in image transfer is prevented. Further thereby, toner melt adhesion and foreign matter deposition is prevented, whereby image blurring is prevented. An electrophotographic image process is provided. In this process, a latent image is formed on a photosensitive drum 1, and a toner image is formed on the latent image. The toner image is temporarily transferred onto an intermediate image-transfer member 20. The photosensitive ...more ...less
11
US20010054430A1
Publication/Patent Number: US20010054430A1
Publication date: 2001-12-27
Application number: 09/838,236
Filing date: 2001-04-20
Abstract: A method for performing a cleaning process uses a cleaning gas and high-frequency power upon a film deposition apparatus for depositing a film on a substrate placed in a reactor chamber which can be evacuated to a low pressure. Supplying of high-frequency power is temporarily stopped in the middle of the cleaning process, and the cleaning process is restarted by again supplying high-frequency power. This method is capable of effectively removing by-products from the inside of a reactor chamber and makes it possible to form a high-quality deposition film, in particular, a high-quality electrophotographic photosensitive drum. A method for performing a cleaning process uses a cleaning gas and high-frequency power upon a film deposition apparatus for depositing a film on a substrate placed in a reactor chamber which can be evacuated to a low pressure. Supplying of high-frequency power is temporarily ...more ...less
12
US20010051308A1
Publication/Patent Number: US20010051308A1
Publication date: 2001-12-13
Application number: 09/808,959
Filing date: 2001-03-16
Abstract: A light-receiving member comprising a conductive substrate, and formed superposingly thereon a photosensitive layer and a surface protective layer in order. The light-receiving member has a surface roughness Ra of from 15 nm to 100 nm. Also disclosed is an image-forming apparatus having such a light-receiving member, and an image-forming method of rendering visible an electrostatic pattern formed on the light-receiving member. The light-receiving member promises stable formation of images over a long period of time. A light-receiving member comprising a conductive substrate, and formed superposingly thereon a photosensitive layer and a surface protective layer in order. The light-receiving member has a surface roughness Ra of from 15 nm to 100 nm. Also disclosed is an image-forming ...more ...less