Guangzhou Tyrafos Semiconductor Technologies Co., Ltd

Guangzhou Tyrafos Semiconductor Tech. Co., Ltd.

Shih-Chan Tai

Ping-Hung Yin

Jia-Shyang Wang

Jia-Sian Lyu

Disclosed are an image sensor circuit and an image sensor device including the image sensor circuit device. The image sensor circuit includes a pixel array formed by a plurality of pixel circuits. Each pixel circuit includes a first sub-pixel circuit, a first control circuit, a second sub-pixel circuit and a second control circuit. The first control circuit may sense light in a first wavelength range and control the first sub-pixel circuit to output a first output information at a first frame rate. The second control circuit may sense light in a second wavelength range and control the second sub-pixel circuit to output a second output information at a second frame rate. The first frame rate is higher than the second frame rate, and the first wavelength range does not overlap with the second wavelength range.

Image sensor circuit and image sensor device

An image sensor and an operation method thereof are provided. The image sensor includes a first pixel circuit and a ramp signal generator. The first pixel circuit includes a first pixel unit; a first transfer transistor coupled to the first pixel unit and a first floating diffusion node; a first readout transistor coupled to the first floating diffusion node; a first ramp capacitor coupled to the first floating diffusion node and receiving a first ramp signal; and a first reset transistor coupled to the first floating diffusion node and receiving a reset signal. The ramp signal generator is coupled to the first ramp capacitor and configured to provide the first ramp signal. A voltage range or a counting result of the pixel circuit during at least one of a reset period and a readout period has an offset.

Image sensor and operation method thereof

The present invention relates to an image sensing device, including: an image sensing array, a conversion unit, and a processing circuit. The image sensing array is used to generate sensing signals of different periods. The conversion unit is used to convert the sensing signals from analog to digital. The processing circuit is used to generate a frame during an image capturing operation. The image sensing array includes a plurality of sensing sub-pixels, and the sensing sub-pixels have a sensing circuit and a storage circuit. The sensing circuit generates the sensing signals and sequentially stores the sensing signal in the storage circuit. The storage circuit sequentially outputs the sensing signals to the conversion unit.

Image sensing device

The present invention is related to a display device, including: a plurality of sub-pixel areas, each including a sub-pixel circuit, each sub-pixel circuit including: a diode, configured to be in a forward-biasing state during a displaying phase of the sub-pixel circuit for emitting light and configured to be in a reverse-biasing state for sensing light of the sub-pixel circuit in a sensing phase; a driving transistor for driving the diode during the display phase; first to sixth transistors, gate control signals are applied to gates of the first to sixth transistors, so that the sub-pixel circuit switches between the display phase and the sensing phase; and a capacitor for storing a data voltage to be written to the diode in the display phase, wherein in the sensing phase the diode generates a photocurrent to an operational amplifier so that the operational amplifier outputs a photocurrent output signal.

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Kaohsiung, Taiwan

Shih-Chan Tai