H01L27/144

Image capturing and display apparatus and wearable device

An image capturing and display apparatus comprises a plurality of photoelectric conversion elements for converting incident light from the outside of the image capturing and display apparatus to electrical charge signals, and a plurality of light-emitting elements for emitting light of an intensity corresponding to the electrical charge signals acquired by the plurality of photoelectric conversion elements. A pixel region is defined as a region in which the plurality of photoelectric conversion elements are arranged in an array. Signal paths for transmitting signals from the plurality of photoelectric conversion elements to the plurality of light-emitting elements lie within the pixel region.

Image capturing and display apparatus and wearable device

An image capturing and display apparatus comprises a plurality of photoelectric conversion elements for converting incident light from the outside of the image capturing and display apparatus to electrical charge signals, and a plurality of light-emitting elements for emitting light of an intensity corresponding to the electrical charge signals acquired by the plurality of photoelectric conversion elements. A pixel region is defined as a region in which the plurality of photoelectric conversion elements are arranged in an array. Signal paths for transmitting signals from the plurality of photoelectric conversion elements to the plurality of light-emitting elements lie within the pixel region.

OPTICAL RECEIVER COMPRISING MONOLITHICALLY INTEGRATED PHOTODIODE AND TRANSIMPEDANCE AMPLIFIER

An optical receiver comprises a monolithically integrated pin photodiode (PIN) and transimpedance amplifier (TIA). The TIA comprises InP heterojunction bipolar transistors (HBT) fabricated from a first plurality of layers of an epitaxial layer stack grown on a SI:InP substrate; the PIN is fabricated from a second plurality of layers of the epitaxial layer stack. The p-contact of the PIN is directly connected to the input of the TIA to reduce PIN capacitance CPIN. The TIA capacitance CTIA may be matched to CPIN. Device parameters comprising: a thickness of the absorption layer, window area, and an optional mirror thickness of the PIN; device capacitance CPIN+CTIA; and feedback resistance RF of the TIA; are optimized to performance specifications comprising a specified sensitivity and responsivity at an operational wavelength. This design approach enables cost-effective fabrication an integrated PIN-TIA, for applications such as a 1577 nm receiver for an ONU for 10G-PON.

PHOTO-LITHOGRAPHED ARRAY OF LIGHT-EMITTING AND LIGHT-CONVERTING DEVICES

A sub-pixel array device includes a plurality of optoelectronic devices disposed on a substrate, the plurality of optoelectronic devices including a light-emitting device and a light-converting device, and a bank structure that separates adjacent optoelectronic devices. Each optoelectronic device includes a first electrode, a second electrode, an active layer disposed between the electrodes and including a solution processable semiconductor, and a photo-crosslinkable material disposed between the first electrode and the second electrode. The photo-crosslinkable material may be incorporated within the active layer of each of the plurality of optoelectronic devices, so as to form a light-emitting device having a photo-crosslinkable emissive layer and a light-converting device having a photo-crosslinkable photo-active layer. The photo-crosslinkable material may be disposed between the active layer and the second electrode, such as incorporated within a capping layer or a charge transport layer disposed between the active layer and the second electrode.

Array substrate and preparation method thereof, and digital microfluidic chip

Disclosed are an array substrate and a preparation method thereof, and a digital microfluidic chip. The preparation method includes: forming a plurality of photoelectric detection devices on a silicon-based substrate; transferring the photoelectric detection devices to a base substrate by adopting a micro transfer printing process; and forming a plurality of transparent driving electrodes on the base substrate, wherein the transparent driving electrodes are insulated from the photoelectric detection devices.

ARRAY SUBSTRATE, MANUFACTURING METHOD OF ARRAY SUBSTRATE, AND DISPLAY PANEL
20230215881 · 2023-07-06 ·

An array substrate, a manufacturing method of the array substrate, and a display panel are provided. The array substrate includes a photosensitive sensor. The photosensitive sensor includes a photosensitive module and a storage module. The photosensitive module includes a photosensitive semiconductor layer. The storage module includes a first electrode plate and a second electrode plate. Wherein, the photosensitive semiconductor layer is disposed on an extension section of a drain electrode. A number of film layer of the photosensitive sensor is decreased, and photomasks are saved.

SOLID-STATE IMAGING ELEMENT

A solid-state imaging element that includes a semiconductor layer, a floating diffusion region (FD), a penetrating pixel separation region, and a non-penetrating pixel separation region. In the semiconductor layer, a visible-light pixel (PDc) that receives visible light and an infrared-light pixel (PDw) that receives infrared light are two-dimensionally arranged. The floating diffusion region is provided in the semiconductor layer and is shared by adjacent visible-light and infrared-light pixels. The penetrating pixel separation region is provided in a region excluding a region corresponding to the floating diffusion region in an inter-pixel region of the visible-light pixel and the infrared-light pixel, and penetrates the semiconductor layer in a depth direction. The non-penetrating pixel separation region is provided in the region corresponding to the floating diffusion region in the inter-pixel region, and reaches a midway part in the depth direction from the light receiving surface of the semiconductor layer.

SINGLE-PHOTON DETECTION PIXEL AND SINGLE-PHOTON DETECTION PIXEL ARRAY INCLUDING THE SAME

A single-photon detection pixel includes a substrate, a first well provided in the substrate, a pair of heavily doped regions provided on the first well, and a contact provided between the pair of heavily doped regions, wherein the substrate and the pair of heavily doped regions have a first conductivity type, and the first well and the contact have a second conductivity type that is different from the first conductivity type.

MICROSTRUCTURE ENHANCED ABSORPTION PHOTOSENSITIVE DEVICES
20230215962 · 2023-07-06 ·

Techniques for enhancing the absorption of photons in semiconductors with the use of microstructures are described. The microstructures, such as pillars and/or holes, effectively increase the effective absorption length resulting in a greater absorption of the photons. Using microstructures for absorption enhancement for silicon photodiodes and silicon avalanche photodiodes can result in bandwidths in excess of 10 Gb/s at photons with wavelengths of 850 nm, and with quantum efficiencies of approximately 90% or more.

Photonic detector coupled with a dielectric resonator antenna

An apparatus for light detection includes a light, or photon, detector assembly and a dielectric resonator layer coupled to the detector assembly. The dielectric resonator layer is configured to receive transmission of incident light that is directed into the detector assembly by the dielectric resonator layer. The dielectric resonator layer resonates with a range of wavelengths of the incident light.