1. A retardation film comprising:
a first optical anisotropic layer comprising a polymer material; and
a second optical anisotropic layer including a liquid crystal material,
wherein
the first optical anisotropic layer has refractive indices which satisfy the following inequation: nz1\u2267nx1>ny1, wherein nx1 denotes a refractive index of the first optical anisotropic layer in a direction of a slow axis thereof, ny1 denotes a refractive index of the first optical anisotropic layer in a direction of a fast axis thereof, and nz1 is a refractive index of the first optical anisotropic layer in a thickness direction, which is substantially vertical to the slow axis direction and the fast axis direction of the first optical anisotropic layer,
the second optical anisotropic layer has refractive indices which satisfy the following inequation: nx2>ny2\u2267nz2, wherein nx2 denotes a refractive index of the second optical anisotropic layer in a direction of a slow axis, ny2 denotes a refractive index of the second optical anisotropic layer in a direction of a fast axis thereof, and nz2 is a refractive index of the second optical anisotropic layer in a thickness direction, which is substantially vertical to the slow axis direction and the fast axis direction of the second optical anisotropic layer,
the fast axis of the first optical anisotropic layer and the slow axis of the second optical anisotropic layer form a predetermined angle such that refractive indices of the retardation film satisfy the following inequation: 0<(nx0\u2212nz0)(nx0\u2212ny0)<1, wherein nx0 denotes refractive index of the retardation film in a slow axis thereof, ny0 denotes a refractive index of the retardation film in a fast axis thereof, and nz0 denotes a refractive index of the retardation film in a thickness direction thereof, and
in-plane retardation values of the retardation film respectively at a wavelength of about 450 nanometers, 550 nanometers and 650 nanometers satisfy the following inequation: Re0 (450 nm)<Re0 (550 nm)<Re0 (650 nm), wherein Re0 (450 nm) denotes an in-plane retardation value of the retardation film at the wavelength of about 450 nanometers, Re0 (550 nm) denotes an in-plane retardation value of the retardation film at the wavelength of about 550 nanometers, and Re0 (650 nm) denotes an in-plane retardation value of the retardation film at the wavelength of about 650 nanometers.
2. The retardation film of claim 1, wherein
an in-plane retardation value of the first optical anisotropic layer and an in-plane retardation value of the second optical anisotropic layer satisfy the following inequations: 150 nanometers\u2266Re1 (550 nm)\u2266400 nanometers, and 0<Re1 (550 nm)\u2212Re2 (550 nm)\u2266\u03bb4, wherein Re1 (550 nm) denotes the in-plane retardation value of the first optical anisotropic layer at the wavelength of about 550 nanometers, Re2 (550 nm) denotes the in-plane retardation value of the second optical anisotropic layer at the wavelength of about 550 nanometers, and \u03bb is a value satisfying the following inequation: 130 nanometers\u2266\u03bb4\u2266150 nanometers.
3. The retardation film of claim 2, wherein
the in-plane retardation value of the second optical anisotropic layer at the wavelength of 550 nanometers is about 100 nanometers or more.
4. The retardation film of claim 3, wherein
an angle formed by an elongation direction of the first optical anisotropic layer and an alignment direction of the second optical anisotropic layer is in a range of about 1\xb0 to about 41\xb0.
5. The retardation film of claim 1, wherein
the first optical anisotropic layer comprises polystyrene, poly(styrene-co-maleic anhydride), a polystyrene-based polymer, a polymaleimide-based polymer, a polymethacrylic acid-based polymer, a polyacrylonitrile-based polymer, a polymethyl methacrylate-based polymer, a cellulose ester-based polymer, a copolymer thereof, or a combination thereof.
6. The retardation film of claim 5, wherein
the second optical anisotropic layer comprises a photo-crosslinked reactive liquid crystal.
7. The retardation film of claim 6, wherein
the cross-linked reactive liquid crystal comprises a rod type aromatic derivative comprising one or more reactive crosslinking groups, 1-methylpropylene glycol, propylene glycol 2-acetate, a compound represented by P1\u2212A1\u2212(Z1\u2212A2)n\u2212P2, or a combination thereof,
wherein P1 and P2 are each independently an acrylate group, a methacrylate group, a vinyl group, a vinyloxy group, or an epoxy group,
A1 and A2 are each independently a 1,4-phehylene group or a naphthalene-2,6-diyl group,
Z1 is COO\u2014, OCO\u2014, or a single bond, and
n is 0, 1, or 2.
8. The retardation film of claim 1, further comprising:
a support film disposed between the first optical anisotropic layer and the second optical anisotropic layer; and
a liquid crystal alignment layer disposed between the support film and the second optical anisotropic layer.
9. The retardation film of claim 8, wherein
the support film comprises triacetyl cellulose, polyethylene terephthalate, polycarbonate, acrylate, polyimide, or a combination thereof.
10. The retardation film of claim 1, wherein
the second optical anisotropic layer comprises a photo-crosslinked reactive liquid crystal.
11. The retardation film of claim 10, wherein
the cross-linked reactive liquid crystal comprises a rod type aromatic derivative comprising one or more reactive crosslinking groups, 1-methyl propylene glycol, propylene glycol 2-acetate, a compound represented by P1\u2212A1\u2212(Z1\u2212A2)n\u2212P2, or a combination thereof
wherein P1 and P2 are each independently an acrylate group, a methacrylate group, a vinyl group, a vinyloxy group or an epoxy group,
A1 and A2 are each independently a 1,4-phenylene group or a naphthalene-2,6-diyl group,
Z1 is \u2212C(\u2550O)O\u2014, \u2014OC(\u2550O)\u2014 or a single bond, and
n is 0, 1, or 2.
12. The retardation film of claim 1, further comprising:
a liquid crystal alignment layer disposed between the first optical anisotropic layer and the second optical anisotropic layer.
13. The retardation film of claim 1, wherein
the in-plane retardation values of the retardation film respectively at a wavelength of about 450 nanometers and 550 nanometers satisfy the following inequation: 0.7<Re0 (450 nm)Re0 (550 nm)\u22661.0.
14. The retardation film of claim 13, wherein
the in-plane retardation values of the retardation film respectively at a wavelength of about 550 nanometers and 650 nanometers satisfy the following inequation: 1.0\u2266Re0 (650 nm)Re0 (550 nm)<1.2.
15. The retardation film of claim 1, wherein
the polymer material has a negative birefringence characteristic, and
the liquid crystal material has a positive birefringence characteristic.
16. An organic light emitting device comprising:
an organic light emitting panel;
the retardation film of claim 1 disposed in an emission direction of light emitted from the organic light emitting panel; and
a polarizing device disposed outside the retardation film in the emission direction of light emitted from the organic light emitting panel,
wherein
the second optical anisotropic layer is disposed between the organic light emitting panel and the first optical anisotropic layer, and
the direction of the slow axis of the retardation film and an absorption axis of the polarizing device form an angle in a range of about 40\xb0 to about 50\xb0.
17. The organic light emitting device of claim 16, wherein
an in-plane retardation value of the first optical anisotropic layer and an in-plane retardation value of the second optical anisotropic layer satisfy the following inequations: 150 nanometers\u2266Re1 (550 nm)\u2266400 nanometers, and 0<Re1 (550 nm)\u2212Re2 (550 nm)\u2266\u03bb4, wherein Re1 (550 nm) denotes the in-plane retardation value of the first optical anisotropic layer at the wavelength of about 550 nanometers, Re2 (550 nm) denotes the in-plane retardation value of the second optical anisotropic layer at the wavelength of about 550 nanometers, and \u03bb is a value satisfying the following inequation: 130 nanometers\u2266\u03bb4\u2266150 nanometers.
18. The organic light emitting device of claim 17, wherein
an angle formed by an elongation direction of the first optical anisotropic layer and an alignment direction of the second optical anisotropic layer is in a range of about 1\xb0 to about 41\xb0.
19. The organic light emitting device of claim 16, wherein
the in-plane retardation values of the retardation film respectively at a wavelength of about 450 nanometers and 550 nanometers satisfy the following inequation: 0.7<Re0 (450 nm)Re0 (550 nm)\u22661.0.
20. The organic light emitting device of claim 19, wherein
the in-plane retardation values of the retardation film respectively at a wavelength of about 550 nanometers and 650 nanometers satisfy the following inequation: 1.0\u2266Re0 (650 nm)Re0 (550 nm)<1.2.
The claims below are in addition to those above.
All refrences to claim(s) which appear below refer to the numbering after this setence.
1. A data transfer method operational on at least one of two devices in a terminal, comprising:
determining a type of physical interface to be used for communicating between the two devices, wherein the type of physical interface is one of a plurality of types of physical interface supported by at least one of the two devices;
selecting an encoder to generate encoded data consistent with the type of physical interface to be used for communicating between the two devices; and
configuring a plurality of drivers to receive the encoded data from the encoder and to drive a plurality of connectors communicatively coupling the two devices in accordance with the type of physical interface to be used for communicating between the two devices.
2. The method of claim 1, further comprising controlling a plurality of switches to couple outputs of the encoder to the plurality of drivers.
3. The method of claim 1, wherein the plurality of connectors comprises at least some bidirectional connectors.
4. The method of claim 1, wherein the encoder provides the encoded data in differentially encoded signals.
5. The method of claim 4, wherein configuring the plurality of drivers to receive the encoded data includes causing one or more outputs of a different encoder to enter a high impedance mode.
6. The method of claim 5, wherein the different encoder comprises an N-phase encoder.
7. The method of claim 1, wherein the encoder provides the encoded data in a sequence of symbols encoded using a combination of a phase state of a first pair of the connectors, a polarity of a second pair of connectors, and a selection of at least one undriven connector.
8. The method of claim 7, wherein the first pair of the connectors comprises the same connectors as the second pair of connectors.
9. The method of claim 7, wherein configuring the plurality of drivers to receive the encoded data includes causing one or more outputs of a differential encoder to enter a high impedance mode.
10. The method of claim 1, wherein the encoded data relates to a camera or a display controlled by one of the two devices.
11. An apparatus comprising:
a plurality of connectors communicatively coupling a first integrated circuit (IC) device with a second IC device;
means for determining a type of physical interface to be used for communicating between two devices in a terminal, wherein the type of physical interface is one of a plurality of types of physical interface supported by at least one of the two devices;
means for generating encoded data consistent with the type of physical interface to be used for communicating between the two devices, wherein the means for generating encoded data includes at least two encoders that are configured to encode data in different manners; and
means for configuring a plurality of drivers to receive the encoded data from one of the at least two encoders and to drive a plurality of connectors communicatively coupling the two devices in accordance with the type of physical interface to be used for communicating between the two devices.
12. The apparatus of claim 11, wherein the means for configuring the plurality of drivers comprises a plurality of switches that selectively connects outputs of the one of the at least two encoders to the plurality of drivers.
13. The apparatus of claim 11, wherein the plurality of connectors comprises at least some bidirectional connectors.
14. The apparatus of claim 11, wherein the one of the at least two encoders is configured to provide the encoded data in differentially encoded signals.
15. The apparatus of claim 14, wherein the means for configuring the plurality of drivers is configured to cause one or more outputs of a different one of the at least two encoders to enter a high impedance mode.
16. The apparatus of claim 15, wherein the at least two encoders comprise an N-phase encoder.
17. The apparatus of claim 11, wherein the one of the at least two encoders is adapted to provide the encoded data in a sequence of symbols encoded using a combination of a phase state of a first pair of the connectors, a polarity of a second pair of connectors, and a selection of at least one undriven connector.
18. The apparatus of claim 17, wherein the first pair of the connectors comprises the same connectors as the second pair of connectors.
19. The apparatus of claim 17, wherein means for configuring the plurality of drivers is configured to cause one or more outputs of a differential encoder to enter a high impedance mode.
20. The apparatus of claim 11, wherein the encoded data relates to a camera or a display controlled by one of the two devices.
21. An apparatus, comprising:
a plurality of connectors communicatively coupling two devices in a terminal; and
a processing circuit configured to:
determine a type of physical interface to be used for communicating between the two devices, wherein the type of physical interface is one of a plurality of types of physical interface supported by at least one of the two devices;
select an encoder to generate encoded data consistent with the type of physical interface to be used for communicating between the two devices; and
configure a plurality of drivers to receive the encoded data from the encoder and to drive a plurality of connectors communicatively coupling the two devices in accordance with the type of physical interface to be used for communicating between the two devices.
22. The apparatus of claim 21, wherein the processing circuit is configured to control a plurality of switches to couple outputs of the encoder to the plurality of drivers.
23. The apparatus of claim 21, wherein the plurality of connectors comprises at least some bidirectional connectors.
24. The apparatus of claim 21, wherein the encoder provides the encoded data in differentially encoded signals.
25. The apparatus of claim 24, wherein configuring the plurality of drivers to receive the encoded data includes causing one or more outputs of a different encoder to enter a high impedance mode.
26. The apparatus of claim 25, wherein the different encoder comprises an N-phase encoder.
27. The apparatus of claim 21, wherein the encoder provides the encoded data in a sequence of symbols encoded using a combination of a phase state of a first pair of the connectors, a polarity of a second pair of connectors, and a selection of at least one undriven connector.
28. The apparatus of claim 27, wherein the first pair of the connectors comprises the same connectors as the second pair of connectors.
29. The apparatus of claim 27, wherein configuring the plurality of drivers to receive the encoded data includes causing one or more outputs of a differential encoder to enter a high impedance mode.
30. The apparatus of claim 21, wherein the encoded data relates to a camera or a display controlled by one of the two devices.
31. A processor-readable storage medium having one or more instructions which, when executed by at least one processing circuit, cause the at least one processing circuit to:
determine a type of physical interface to be used for communicating between two devices in a terminal, wherein the type of physical interface is one of a plurality of types of physical interface supported by at least one of the two devices;
select an encoder to generate encoded data consistent with the type of physical interface to be used for communicating between the two devices; and
configure a plurality of drivers to receive the encoded data from the encoder and to drive a plurality of wires communicatively coupling the two devices in accordance with the type of physical interface to be used for communicating between the two devices.
32. The processor-readable storage medium of claim 31, wherein one or more instructions cause the at least one processing circuit to couple outputs of the encoder to the plurality of drivers.
33. The processor-readable storage medium of claim 31, wherein the plurality of wires comprises at least some bidirectional wires.
34. The processor-readable storage medium of claim 31, wherein the encoder provides the encoded data in differentially encoded signals.
35. The processor-readable storage medium of claim 34, one or more instructions which, when executed by at least one processing circuit, cause the at least one processing circuit to force one or more outputs of a different encoder to enter a high impedance mode.
36. The processor-readable storage medium of claim 35, wherein the different encoder comprises an N-phase encoder.
37. The processor-readable storage medium of claim 31, wherein the encoder provides the encoded data in a sequence of symbols encoded using a combination of a phase state of a first pair of the wires, a polarity of a second pair of wires, and a selection of at least one undriven wire.
38. The processor-readable storage medium of claim 37, wherein the first pair of the wires comprises the same wires as the second pair of wires.
39. The processor-readable storage medium of claim 37, one or more instructions which, when executed by at least one processing circuit, cause the at least one processing circuit to force one or more outputs of a differential encoder to enter a high impedance mode.
40. The processor-readable storage medium of claim 31, wherein the encoded data relates to a camera or a display controlled by one of the two devices.