IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0649408
(2000-08-28)
|
우선권정보 |
JP-0240583 (1999-08-26); JP-0241794 (1999-08-27) |
발명자
/ 주소 |
|
출원인 / 주소 |
- Nippon Mitsubishi Oil Corporation
|
인용정보 |
피인용 횟수 :
12 인용 특허 :
7 |
초록
▼
According to the present invention, a method is provided for manufacturing a polarization diffraction film, which comprises the steps of forming a film with a liquid crystal material containing a liquid crystalline polymer and a crosslinkable substance, fixing a cholesteric alignment formed with the
According to the present invention, a method is provided for manufacturing a polarization diffraction film, which comprises the steps of forming a film with a liquid crystal material containing a liquid crystalline polymer and a crosslinkable substance, fixing a cholesteric alignment formed with the liquid crystal material, crosslinking the liquid crystal material to form a liquid crystal film and providing a region exhibiting a diffraction-capability on at least a part of the liquid crystal film or polarization diffraction film or comprises the steps of forming a film with a liquid crystal material containing a polymeric liquid crystal and a crosslinkable substance, crosslinking the liquid crystal material in a cholesterically aligned state so as to form a liquid crystal film with a cholesteric alignment fixed and providing a region exhibiting a diffraction capability on at least a part of the liquid crystal film.
대표청구항
▼
According to the present invention, a method is provided for manufacturing a polarization diffraction film, which comprises the steps of forming a film with a liquid crystal material containing a liquid crystalline polymer and a crosslinkable substance, fixing a cholesteric alignment formed with the
According to the present invention, a method is provided for manufacturing a polarization diffraction film, which comprises the steps of forming a film with a liquid crystal material containing a liquid crystalline polymer and a crosslinkable substance, fixing a cholesteric alignment formed with the liquid crystal material, crosslinking the liquid crystal material to form a liquid crystal film and providing a region exhibiting a diffraction-capability on at least a part of the liquid crystal film or polarization diffraction film or comprises the steps of forming a film with a liquid crystal material containing a polymeric liquid crystal and a crosslinkable substance, crosslinking the liquid crystal material in a cholesterically aligned state so as to form a liquid crystal film with a cholesteric alignment fixed and providing a region exhibiting a diffraction capability on at least a part of the liquid crystal film. ric field effective to produce at least one liquid crystal domain having dimensions in a plane parallel to the plane of said substrates within which said liquid crystal molecules have an azimuthal orientation with predominantly the same sign and direction, and wherein at least a portion of said small scale gap is disposed within said domain at least about 1 times the distance t from the boundaries of said domain. 2. A liquid crystal cell according to claim 1 including a plurality of said small scale gaps within said at least one pixel. 3. A liquid crystal cell according to claim 1 wherein at least a portion of said small scale gap is disposed within said domain at least about 2.0 times the distance t from the boundaries of said domain. 4. A liquid crystal cell according to claim 1 wherein, when in said field-on condition, said liquid crystal material exhibits a plurality of said domains within said at least one pixel, each said domain being adjacent at least one said small scale gap. 5. A liquid crystal cell according to claim 1 wherein, when in said field-on condition, said liquid crystal material exhibits a plurality of said domains within said at least one pixel, each said domain being adjacent a plurality of said small scale gaps. 6. A liquid crystal cell according to claim 1 wherein both said first and second electrodes include at least one said pixel containing at least one said small scale gap. 7. A liquid crystal cell according to claim 1 wherein both said first and second electrodes include at least one said pixel containing a plurality of said small scale gaps. 8. A liquid crystal cell according to claim 1 wherein both said first and second electrodes include at least one said pixel wherein, when in said field-on condition, said liquid crystal material exhibits a plurality of said domains within each said pixel, each said domain being adjacent at least one said small scale gap. 9. A liquid crystal cell according to claim 1 wherein both said first and second electrodes include at least one said pixel wherein, when in said field-on condition, said liquid crystal material exhibits a plurality of said domains within each said pixel, each said domain being adjacent a plurality of said small scale gaps. 10. A liquid crystal cell according to claim 6, 7, 8 or 9 wherein said pixels on said first and second substrates are substantially adjacent and coextensive. 11. A liquid crystal cell according to claim 1 wherein at least a portion of a boundary of said domain is substantially linear, and said boundary is substantially adjacent and colinear with at least one of a non-conducting gap or portion of a non-conducting gap, or a difference in a location of edges of the electrodes on opposing substrates at an edge of said pixel, and further comprising a plurality of said small scale gaps disposed at an angle thereto. 12. A liquid crystal cell according to claim 1 wherein at least a portion of a boundary of said domain is substantially linear, and including at least one non-conducting gap or a portion of a non-conducting gap substantially adjacent and colinear with at least a portion of said linear portion of said boundary, and a plurality of said small scale gaps extending at an angle therefrom. 13. A liquid crystal cell according to claim 1 wherein at least a portion of a boundary of said domain is substantially linear, and including at least one non-conducting gap or portion of a non-conducting gap substantially adjacent and colinear with at least a portion of said linear portion of said boundary, and a plurality of said small scale gaps extending at an angle therefrom, said small scale gaps being substantially rectangular and parallel to one another. 14. A liquid crystal cell according to claim 1 wherein said domain boundaries are substantially linear, each said boundary being disposed substantially adjacent and colinear with a non-conducting gap or a portion of a non-conducting gap, and further including a plurality of said s
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