Illumination device and electrooptic apparatus
View Patent ↗An illumination device is a device which irradiates light to a reflection-type display panel in which a liquid crystal is sandwiched between a pair of substrates. The illumination device includes a light emitting portion formed such that an organic EL layer is sandwiched between the pair of substrates. A first electrode which is in contact with the organic EL layer includes a metal portion and a transparent portion through which light can transmit. Light does not transmit through the metal portion provided at the viewing side. Further, the illumination device includes a microlens array arranged so as to cover the light emitting portion at the viewing side of the light emitting portion.
1. An illumination device which irradiates light to a liquid crystal sandwiched between a first substrate and a second substrate, the illumination device comprising:
an illumination unit provided above the first substrate and above the second substrate at a viewing side of the illumination device, the illumination unit including:
a polarizing plate;
a light emitting portion including a light emitting layer, the light emitting portion formed directly above the polarizing plate; and
a reduction lens arranged so as to cover the light emitting portion at the viewing side of the light emitting portion, such that the light emitting portion is between the polarizing plate and the reduction lens.
2. The illumination device according to claim 1 ,
wherein the illumination unit has a plurality of light emitting portions, and
a plurality of reduction lenses are arranged so as to cover the plurality of light emitting portions at the viewing side of the plurality of light emitting portions.
3. The illumination device according to claim 1 ,
wherein the reduction lens is a microlens array.
4. The illumination device according to claim 1 , further including a light shielding portion which is arranged at the viewing side of the light emitting portion and shields outside light or inside light,
wherein the reduction lens is arranged so as to cover the light shielding portion at the viewing side of the light shielding portion.
5. An electrooptic apparatus comprising:
the illumination device according to claim 1 ; and
a reflection-type liquid crystal panel.
6. An electrooptic apparatus comprising:
the illumination device according to claim 2 ; and
a reflection-type liquid crystal panel.
7. An electrooptic apparatus comprising:
the illumination device according to claim 3 ; and
a reflection-type liquid crystal panel.
8. An electrooptic apparatus comprising:
the illumination device according to claim 4 ; and
a reflection-type liquid crystal panel.
9. An electrooptic apparatus comprising:
the illumination device according to claim 1 ; and
an electronic paper.
10. An electrooptic apparatus comprising:
the illumination device according to claim 2 ; and
an electronic paper.
11. An electrooptic apparatus comprising:
the illumination device according to claim 3 ; and
an electronic paper.
12. An electrooptic apparatus comprising:
the illumination device according to claim 4 ; and
an electronic paper.
13. The illumination device according to claim 1 , wherein the reduction lens reduces a dot size perceived by an observer, the dot size generated due to outside light entering the illumination device from the viewing side.