CMOS image chip, camera thereof, and debugging method thereof
The present invention relates to a CMOS image chip, a camera, thereof, and a debugging method thereof. The CMOS image chip of the present invention disposes light emitting diodes in a light emitting region and uses a projection pattern of the light emitting diodes on a substrate to be inspected to determine a photosensitive effective region of the CMOS image chip on the underlay to prevent the issue that the conventional technology uses an image by camera imaging on a display device as debug basis and a camera imaging image has signal delay to result in a low debugging efficiency, which drastically improves a debugging efficiency of the camera.
1 . A complementary metal-oxide-semiconductor (CMOS) image chip, comprising: a photosensitive region and a light emitting region surrounding the photosensitive region;
wherein the CMOS image chip comprises:
a circuit layer located in the photosensitive region and the light emitting region;
a plurality of photodiodes disposed on the circuit layer of the photosensitive region and electrically connected to the circuit layer; and
a plurality of the light emitting diodes disposed on the circuit layer of the light emitting region and electrically connected to the circuit layer;
wherein an underlay is disposed on the circuit layer in the photosensitive region, and the photodiodes are disposed on the underlay of the photosensitive region;
wherein the underlay is further disposed on the circuit layer in the light emitting region, the underlay in the light emitting region comprises a first aperture, and the light emitting diodes are located in the first aperture;
wherein each of the light emitting diodes comprises: a substrate, a light emitting layer disposed on a side of the substrate toward the circuit layer, a P-electrode and a N-electrode disposed on a side of the light emitting layer away from the substrate at an interval;
wherein the circuit layer corresponding to the first aperture comprises a first electrode and a second electrode electrically connected to the P-electrode and the N-electrode respectively;
wherein the CMOS image chip further comprises:
an anti-reflection layer disposed on a side of the underlay away from the circuit layer; a second aperture is defined between adjacent two of the photodiodes, and the anti-reflection layer is further filled in the second aperture; and
an encapsulation layer filled in the first aperture;
wherein surfaces of sides of the encapsulation layer, the light emitting diodes, and the anti-reflection layer away from the circuit layer are flush with one another.
2 . The CMOS image chip according to claim 1 , wherein the light emitting diodes are Micro light emitting diodes (LEDs) or Mini LEDs.
3 . The CMOS image chip according to claim 1 , wherein each of the light emitting diodes further comprises a protrusion metal disposed between the P-electrode and the first electrode and disposed between the N-electrode and the second electrode.
4 . The CMOS image chip according to claim 3 , wherein a surface of a side of the light emitting layer of one of the light emitting diodes away from the circuit layer is flush with a surface of a side of the underlay away from the circuit layer.
5 . The CMOS image chip according to claim 1 , wherein the CMOS image chip further comprises:
a metal grid disposed on a portion of a side of the anti-reflection layer away from the circuit layer corresponding to the second aperture;
a first planarization layer disposed on a side of the anti-reflection layer, the light emitting diodes and the encapsulation layer away from the circuit layer;
a color resist unit disposed on a side of the first planarization layer between adjacent portions of the metal grid away from the circuit layer;
a second planarization layer disposed on a side of the color resist unit and the first planarization layer away from the circuit layer; and
a plurality of lens elements disposed on a side of the second planarization layer away from the circuit layer and disposed opposite to the color resist unit and the light emitting diodes.
6 . The CMOS image chip according to claim 1 , a length of bottom edge of a side of the first aperture near the circuit layer is less than a length of a bottom edge of a side of the first aperture away from the circuit layer.
7 . A camera, comprising a complementary metal-oxide-semiconductor (CMOS) image chip and a lens;
wherein the camera comprises one of an area array camera and a linear array camera;
wherein the CMOS image chip comprises: a photosensitive region and a light emitting region surrounding the photosensitive region;
wherein the CMOS image chip comprises:
a circuit layer located in the photosensitive region and the light emitting region;
a plurality of photodiodes disposed on the circuit layer of the photosensitive region and electrically connected to the circuit layer; and
a plurality of the light emitting diodes disposed on the circuit layer of the light emitting region and electrically connected to the circuit layer;
wherein an underlay is disposed on the circuit layer in the photosensitive region, and the photodiodes are disposed on the underlay of the photosensitive region;
wherein the underlay is further disposed on the circuit layer in the light emitting region, the underlay in the light emitting region comprises a first aperture, and the light emitting diodes are located in the first aperture;
wherein each of the light emitting diodes comprises: a substrate, a light emitting layer disposed on a side of the substrate toward the circuit layer, a P-electrode and a N-electrode disposed on a side of the light emitting layer away from the substrate at an interval;
wherein the circuit layer corresponding to the first aperture comprises a first electrode and a second electrode electrically connected to the P-electrode and the N-electrode respectively;
wherein the CMOS image chip further comprises:
an anti-reflection layer disposed on a side of the underlay away from the circuit layer; a second aperture is defined between adjacent two of the photodiodes, and the anti-reflection layer is further filled in the second aperture; and
an encapsulation layer filled in the first aperture;
wherein surfaces of sides of the encapsulation layer, the light emitting diodes, and the anti-reflection layer away from the circuit layer are flush with one another.
8 . The camera according to claim 7 , wherein the light emitting diodes are Micro light emitting diode (LEDs) or Mini LEDs.
9 . The camera according to claim 7 , wherein each of the light emitting diodes further comprises a protrusion metal disposed between the P-electrode and the first electrode and disposed between the N-electrode and the second electrode; and
a surface of a side of the light emitting layer of one of the light emitting diodes away from the circuit layer is flush with a surface of a side of the underlay away from the circuit layer.
10 . The camera according to claim 7 , wherein the CMOS image chip further comprises:
a metal grid disposed on a portion of a side of the anti-reflection layer away from the circuit layer corresponding to the second aperture;
a first planarization layer disposed on a side of the anti-reflection layer, the light emitting diodes and the encapsulation layer away from the circuit layer;
a color resist unit disposed on a side of the first planarization layer between adjacent portions of the metal grid away from the circuit layer;
a second planarization layer disposed on a side of the color resist unit and the first planarization layer away from the circuit layer; and
a plurality of lens elements disposed on a side of the second planarization layer away from the circuit layer and disposed opposite to the color resist unit and the light emitting diodes.