1. A daylighting sheet that is arranged in an opening portion of a building and transmits light from an outdoor side to an indoor side,
wherein the daylighting sheet is formed by stacking a plurality of layers,
the layers include:
a translucent base material layer;
and a light deflection layer that is formed on the base material layer, and
the light deflection layer includes:
light transmission portions that are aligned along one surface of the base material layer so as to be able to transmit light; and
light deflection portions that are formed between the light transmission portions and deflect the light reached the light deflection portions.
2. The daylighting sheet of claim 1,
wherein at least one of other translucent layers is arranged on a side of the light deflection layer opposite to the base material layer.
3. The daylighting sheet of claim 1,
wherein the light transmission portions have a predetermined cross section and extend along the one surface of the base material layer, and are aligned in a direction different from the direction in which the light transmission portions extend, and
the light deflection portions are arranged between the adjacent light transmission portions such that the light deflection portions extend in the same direction as the light transmission portions and are aligned in the direction different from the direction in which the light transmission portions extend.
4. The daylighting sheet of claim 1,
wherein the light deflection portion is filled with a material that reflects light.
5. The daylighting sheet of any one of claim 1,
wherein the light deflection portion is filled with a material that scatters and transmits light.
6. The daylighting sheet of claim 1,
wherein the light deflection portion is filled with a material whose refractive index is lower than a refractive index of the light transmission portion.
7. The daylighting sheet of any one of claim 1,
wherein the light deflection portion is an air gap.
8. The daylighting sheet of claim 1, further comprising a layer that has at least one of an ultraviolet absorption function, a heat-ray absorption function and a near-infrared absorption function.
9. A daylighting panel comprising:
a translucent plate-shaped panel; and
the daylighting sheet of claim 1, that is attached to one surface of the panel.
10. The daylighting panel of claim 9,
wherein the panel is a window glass that is provided in the opening portion of the building.
11. A roll-up daylighting screen comprising:
the daylighting sheet of claim 1; and
a shaft member that is arranged in the daylighting sheet such that the daylighting sheet can be wound and unwound.
12. A method of manufacturing the daylighting sheet of claim 1,
wherein the light transmission portion is formed by steps of filling an area between a base material of the base material layer and a mold roll that can transfer a shape of the light transmission portion with a curable resin that has not been cured and that is to be the light transmission portion and of curing the curable resin after the filling to release the curable resin from the mold roll.
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.-50. (canceled)
51. A plasma display panel-driving method for a plasma display panel in which a plurality of discharge cells are arranged, the plasma display panel driving method comprising:
a setup step for applying a set-up pulse to the discharge cells; and
a write step for applying a write pulse to selected discharge cells of the plurality of discharge cells based on image data input,
wherein the setup pulse applied in the set-up step to discharge cells has a waveform that falls in at least two steps.
52. The plasma display panel driving method according to claim 51,
wherein the staircase waveform for the setup pulse is generated by adding at least two pulses.
53. A plasma display apparatus comprising:
a plasma display panel including:
a first substrate on which a plurality of pairs of a first electrode and a second electrode are arranged;
a second substrate on which a plurality of third electrodes are arranged, the second substrate facing to the first substrate; and
a plurality of discharge cells formed between the first and second substrates and each discharge cell having a first electrode, a second electrode, and a third electrode; and
a driving circuit operable to drive the plasma display panel by repeating, for each of a plurality of frames, a set-up period of applying a setup pulse to the discharge cells,
wherein the driving circuit is operable to apply, in the set-up period, the set-up pulse having a waveform that falls in at least two steps to the first electrodes.
54. The plasma display apparatus according to claim 53,
wherein the staircase waveform for the set-up pulse is generated by adding at least two pulses.