1. A self-monitoring light source comprising:
a light source fabricated in a semiconductor die, the light source generating light;
a light monitor fabricated in the same semiconductor die as the light source, the light monitor being laterally displaced from the light source in the semiconductor die so the light monitor is not directly above or below the light source;
an optical element above the light source, the optical element being distinct from the light source, the optical element directing a portion of the light from the light source to the light monitor so the light monitor generates a feedback signal;
wherein the light source is a VCSEL that includes an aperture;
wherein the light monitor includes a ring-shape layout that at least partially surrounds the aperture.
2. A self-monitoring light source comprising:
a light source fabricated in a semiconductor die, the light source generating light;
a light monitor fabricated in the same semiconductor die as the light source, the light monitor being laterally displaced from the light source in the semiconductor die so the light monitor is not directly above or below the light source;
an optical element above the light source, the optical element being distinct from the light source, the optical element directing a portion of the light from the light source to the light monitor so the light monitor generates a feedback signal;
wherein the light monitor includes a layout with a light-receiving site; and
wherein the light monitor includes one of a ring-shape geometry, a ring-shape geometry that includes at least one cutout, a layout that is symmetric about at least a first axis, a layout that is symmetric about a first axis and a second axis, and a layout that is radially symmetric.
3. A self-monitoring light source comprising:
a light source fabricated in a semiconductor die, the light source generating light;
a light monitor fabricated in the same semiconductor die as the light source, the light monitor being laterally displaced from the light source in the semiconductor die so the light monitor is not directly above or below the light source;
an optical element above the light source, the optical element being distinct from the light source, the optical element directing a portion of the light from the light source to the light monitor so the light monitor generates a feedback signal;
wherein the optical element is formed in the semiconductor die and the light source is a bottom surface emitting VCSEL.
4. A self-monitoring light emitting apparatus comprising:
a vertical emitting light source that generates light; wherein the vertical emitting light source is formed in a light source die;
a monitor that receives a portion of the generated light;
an optical element that is formed in the monitor die and that directs a portion of the generated light to the monitor;
wherein the monitor is formed in a monitor die and laterally displaced from the vertical emitting light source so the monitor is not directly above or below the vertical emitting light source;
wherein the light source die and the monitor die are combined into a single sub-assembly.
5. The self-monitoring light emitting apparatus of claim 4 wherein the monitor die includes a surface; and wherein the optical element is a grating that is formed on the surface of the monitor die.
6. A self-monitoring light emitting apparatus comprising:
a vertical emitting light source that generates light; wherein the vertical emitting light source is formed in a light source die;
a monitor that receives a portion of the generated light;
an optical element that is formed in the light source die and that directs a portion of the generated light to the monitor;
wherein the monitor is formed in a monitor die and laterally displaced from the vertical emitting light source so the monitor is not directly above or below the vertical emitting light source;
wherein the light source die and the monitor die are combined into a single sub-assembly.
7. The self-monitoring light emitting apparatus of claim 6 wherein the light source die includes a surface; and wherein the optical element is a grating that is formed on the surface of the light source die.
8. A self-monitoring light emitting apparatus comprising:
a vertical emitting light source that generates light; wherein the vertical emitting light source is formed in a light source die;
a monitor that receives a portion of the generated light;
wherein the monitor is formed in a monitor die and laterally displaced from the vertical emitting light source so the monitor is not directly above or below the vertical emitting light source;
wherein the light source die and the monitor die are combined into a single sub-assembly;
wherein the monitor includes a light-receiving site; and
wherein the monitor includes one of a ring-shape geometry, a ring-shape geometry that includes at least one cutout, a layout that is symmetric about at least a first axis, a layout that is symmetric about a first axis and a second axis, and a layout that is radially symmetric.
9. A light emitting apparatus comprising:
a light source that is formed in a light source die and that generates light;
wherein the light source die includes a surface;
an optical element that is formed in the surface of the light source die, the optical element being distinct from the light source, the optical element selectively transmitting a portion of the generated light and reflects a portion of the generated light; and
a light monitor that is formed in one of a light monitor die and a thin film and that receives at least a portion of the reflected light;
wherein the light monitor die is combined with the light source die into a single sub-assembly.
10. A light emitting apparatus comprising:
a light source that is formed in a light source die and that generates light;
wherein the light source die includes a surface; and
an optical element that is formed in the surface of the light source die, the optical element being distinct from the light source, the optical element selectively transmitting a portion of the generated light and reflects a portion of the generated light;
wherein the optical element includes a grating with an alternating strip pattern.
11. A light emitting apparatus comprising:
a light source that is formed in a light source die and that generates light;
a light monitor that is formed in a light monitor die that includes a surface; and
an optical element that is formed in the surface of the light monitor die and that selectively transmits a portion of the light incident thereto and reflects a portion of the incident light;
wherein the light monitor die is combined with the light source die into a single sub-assembly, the light monitor is laterally displaced from the light source so the light monitor is not directly above or below the light source.
12. The apparatus of claim 11 wherein the light source is one of a vertical emitting light source, a bottom surface emitting VCSEL, a top surface emitting VCSEL, a vertical emitting semiconductor laser, and a vertical emitting light emitting diode.
13. The apparatus of claim 11 wherein the optical element includes a grating with an alternating strip pattern.
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 planar display device comprising:
a first display panel for displaying an image, the first display panel including a plurality of first scan lines to which a scan signal is inputted and a plurality of first signal lines to which an image signal is inputted;
a second display panel for displaying an image, the second display panel including a plurality of second scan lines to which a scan signal is inputted and a plurality of second signal lines to which an image signal is inputted;
a first selective connection circuit in which the plurality of first signal lines are categorized into a plurality of first signal line groups respectively representing different colors, with the plurality of first signal lines associated with a plurality of image signal supplying lines for supplying the image signal, the first selective connection circuit sequentially connecting the plurality of first signal lines in each of the first signal line groups to the corresponding plurality of image signal supplying lines in a case where display is performed by use of the first display panel, and the first selective connection circuit fixing the connection of the first signal lines in the first signal line group to the corresponding plurality of image signal supplying lines in a case where display is performed by use of the second display panel; and
a second selective connection circuit in which the plurality of second signal lines are categorized into a plurality of second signal line groups respectively representing different colors, with the plurality of second signal lines associated with the first signal lines in the first signal line group which are connected to the plurality of image signal supplying lines, the second selective connection circuit sequentially connecting the plurality of second signal lines in each of the second signal line groups to the corresponding first signal lines in the first signal line group in a case where a first display is performed as the display to be performed by use of the second display panel, and the second selective connection circuit connecting all of the second signal lines to the corresponding first signal lines in the first signal line group in a case where a second display is performed as the display to be performed by use of the second display panel.
2. The planar display device according to claim 1, wherein the first display panel includes the first selective connection circuit, and
the second display panel includes the second selective connection circuit.
3. The planar display device according to claim 1, wherein the first display panel and the second display panel are integrated.