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US 2022/0102418 A1Published application
Image transducer and 3d image capturing system having the same
OwnerHao-Che Liuinventor
Life of this patent
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Abstract
An image transducer and a 3D image capturing system having the image transducer are provided. The image transducer includes a microlens, first function layer, first photosensitive layer, second function layer, second photosensitive layer, first read circuit and second read circuit; thus, the image transducer includes two photosensitive layers and is vertically structured. The two photosensitive layers greatly increase sensing waveband. The 3D image capturing system uses the image transducer to enhance pixel screen fineness of a 3D screen.
Claims14
An image transducer, comprising:
- a microlens;
- a first function layer disposed below the microlens and having a first transmittance;
- a first photosensitive layer disposed below the first function layer and having a first electrode contact and a second electrode contact;
- a second function layer disposed below the first photosensitive layer and having a second transmittance;
- a second photosensitive layer disposed below the second function layer and having a third electrode contact and a fourth electrode contact;
- a first read circuit electrically connected to the first electrode contact and the second electrode contact of the first photosensitive layer;
- and
- a second read circuit electrically connected to the third electrode contact and the fourth electrode contact of the second photosensitive layer,
- wherein the first transmittance is greater than the second transmittance,
- wherein the microlens receives and transfers an incident ray to the first function layer, such that the first function layer filters the incident ray before generating and transferring a first filtered light to the first photosensitive layer, wherein the first photosensitive layer generates a first portion light of the first filtered light and converts the first portion light into a first electrical signal, wherein the first filtered light is absorbed by the first photosensitive layer and thus attenuates, wherein the first photosensitive layer generates and transfers a second portion light of the first filtered light to the second function layer, wherein the second function layer receives and filters the second portion light to generate and transfer a second filtered light to the second photosensitive layer, wherein the second photosensitive layer generates a third portion light of the second filtered light and converts the third portion light into a second electrical signal,
- wherein, when waveband for filtration carried out in the first function layer is different from waveband for filtration carried out in the second function layer, the first read circuit receives the first electrical signal and allows the first electrical signal to function as an output, whereas the second read circuit receives the second electrical signal and allows the second electrical signal to function as an output,
- wherein, when waveband for filtration carried out in the first function layer is identical to waveband for filtration carried out in the second function layer, the first read circuit receives the first electrical signal, whereas the second read circuit receives the second electrical signal, wherein, when the first electrical signal is not greater than a predetermined saturation threshold, the first read circuit transfers the first electrical signal and allows the first electrical signal to function as an output, wherein, when the first electrical signal is greater than the predetermined saturation threshold, the first read circuit transfers the first electrical signal, whereas the second read circuit transfers the second electrical signal and allows the second electrical signal to function as an output.
9 more elements
Dependencies are inferred from the claim text.