1. A light guide plate, having a light emitting surface, a bottom surface and at least one light incident surface connected with the light emitting surface and the bottom surface, wherein the light guide plate is a superposition of a plurality of layers substantially parallel to the light emitting surface, the light emitting surface has a plurality of stripe-shaped light-controlling structures thereon, and the bottom surface has a plurality of light-reflecting structures thereon.
2. The light guide plate according to claim 1, wherein at least two of the plurality of layers are transparent materials with different refractive indexes, and difference between a maximal and a minimal refractive indexes of the plurality of layers is equal to or larger than 0.03.
3. The light guide plate according to claim 1, wherein the light emitting surface is on a first layer, and the bottom surface is on a second layer, wherein a refractive index of the first layer is less than that of the second layer.
4. The light guide plate according to claim 1, wherein the light emitting surface is on a first layer, the bottom surface is on a second layer, and a third layer is further disposed between the first and the second layers, and refractive indexes of the first and the second layer are larger than that of the third layer.
5. The light guide plate according to claim 1, wherein the stripe-shaped light-controlling structures comprise a plurality of stripe-shaped light-converging structures and a plurality of stripe-shaped light-diffusing structures arranged alternately.
6. The light guide plate according to claim 5, wherein the stripe-shaped light-converging structures are triangular prisms, and the stripe-shaped light-diffusing structures are cylindrical convex lenses.
7. The light guide plate according to claim 6, wherein apex angles of the stripe-shaped light-converging structures are in a range of 80 to 120 degrees.
8. The light guide plate according to claim 5, wherein the stripe-shaped light-converging structures are triangular prisms with apex angles in a range of 80 to 120 degrees, and the stripe-shaped light-diffusing structures are triangular prisms with apex angles in a range of 120 to 150 degrees.
9. The light guide plate according to claim 8, wherein apex angles of the stripe-shaped light-converging structures are different from those of the stripe-shaped light-diffusing structures.
10. The light guide plate according to claim 1, wherein long axes of the stripe-shaped light-controlling structures are substantially parallel to a normal line of the light incident surface.
11. The light guide plate according to claim 1, wherein the light-reflecting structures are strip-shaped, long axes of the light-reflecting structures are substantially perpendicular to a normal line of the light incident surface.
12. The light guide plate according to claim 1, wherein each of the light-reflecting structures has a main reflecting surface, an angle between the main reflecting surface and the bottom surface is in a range of 25 to 40 degrees.
13. The light guide plate according to claim 12, wherein the main reflecting surfaces are single flat surfaces, single curved surfaces, a plurality of flat surfaces, a plurality of curved surfaces or combinations of at least one flat surface and at least one curved surface.
14. The light guide plate according to claim 1, wherein heights of the light-reflecting structures increase in a direction away from the light incident surface.
15. The light guide plate according to claim 1, wherein the distances between the light-reflecting structures decrease in a direction away from the light incident surface.
16. The light guide plate according to claim 1, further comprising a reflecting layer which is disposed on and entirely covers the bottom surface and the light-reflecting structures.
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 mobile information terminal apparatus comprising:
display means which displays information;
scanning means which captures image information; and
a recording medium which records information,
wherein the scanning means is incorporated in the display means.
2. A mobile information terminal apparatus according to claim 1, wherein the scanning means comprises a plurality of light receiving elements which are arranged like dots to the display means.
3. A mobile information terminal apparatus according to claim 1, wherein the recording medium is an exchangeable non-volatile memory.
4. A mobile information terminal apparatus according to claim 1, wherein the recording medium is an exchangeable compact hard disk.
5. A mobile information terminal apparatus comprising:
display means which displays information;
scanning means which captures image information; and
a recording medium which records information,
wherein the scanning means is incorporated in the display means and the display means has a touch panel.
6. A mobile information terminal apparatus according to claim 5, wherein the scanning means comprises a plurality of light receiving elements which are arranged like dots to the display means.
7. A mobile information terminal apparatus according to claim 5, wherein the recording medium is an exchangeable non-volatile memory.
8. A mobile information terminal apparatus according to claim 5, wherein the recording medium is an exchangeable compact hard disk.