| EPSRC Reference: |
GR/M69999/01 |
| Title: |
NOVEL LIQUID CRYSTALS FOR PLLCD STRUCTURES USING DIRECT EMISSION GAS DISCHARGE SOURCES |
| Principal Investigator: |
Crossland, Professor WA |
| Other Investigators: |
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| Project Partners: |
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| Department: |
Engineering |
| Organisation: |
University of Cambridge |
| Scheme: |
Standard Research (Pre-FEC) |
| Starts: |
01 October 1999 |
Ends: |
31 March 2003 |
Value (£): |
164,214
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| EPSRC Research Topic Classifications: |
| Materials Synthesis & Growth |
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| EPSRC Industrial Sector Classifications: |
| Aerospace, Defence and Marine |
Chemicals |
| Electronics |
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| Related Grants: |
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Summary on Grant Application Form |
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Photoluminecent liquid crystal displays (PL-LCDs) have a novel architecture using liquid crystal shutters to control narrow band excitation light onto phosphors which emit light to the viewer. The aim of the project is to develop liquid crystal mixtures suitable for use in bright PL-LCD's applications that require illumination near 365nm. Such mixtures must be especially designed for long term transparency and stability at this wavelength as well as low switching voltages, low melting points, high nematic clearing point and low viscosity. Appropriate elastic and dielectric constants are required to allow suitable voltage thresholds for high duty multiplexing and/or greyscale performance depending on the application. The birefrengence must be as large as possible, consistent with photochemical stability, in order that the cell thickness can be minimised. Two new PL-LCD structures are proposed:a) A full colour projection display using a 'point source' 365 lamp;b) A simplified, cost-reduced, and improved version of the conventional flat panel PL-LCD structure using direct emission low pressure discharge tubes. The performances of the two target PL-LCDs will be simulazed by computer programme in order to obtain an insight into the new PL-LCD's operation and hence develop target material properties. Finally the two PL-LCD structures with developed LC mixtures will be demonstrated.
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Key Findings |
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This information can now be found on Gateway to Research (GtR) http://gtr.rcuk.ac.uk
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Potential use in non-academic contexts |
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This information can now be found on Gateway to Research (GtR) http://gtr.rcuk.ac.uk
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Impacts |
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| Description |
This information can now be found on Gateway to Research (GtR) http://gtr.rcuk.ac.uk |
| Summary |
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| Date Materialised |
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Sectors submitted by the Researcher |
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This information can now be found on Gateway to Research (GtR) http://gtr.rcuk.ac.uk
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| Project URL: |
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| Further Information: |
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| Organisation Website: |
http://www.cam.ac.uk |