X-ray detector, method of controlling the same, and X-ray photographing system
AssigneeSamsung Display Co., Ltd.
InventorKwan-Wook Jung
Life of this patent
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Abstract
An, X-ray detector photographs an object by receiving an X-ray irradiated from an X-ray generator. The X-ray detector includes: a plurality of photo-detecting pixels, each of which includes a photodiode, which detects an X-ray and generates an electric signal corresponding to an amount of a transmitted X-ray, and a switching device which transmits the electric signal; a gate driver which supplies a gate pulse to the switching device for turning on the switching device; and a read-out integrated circuit (IC) which reads out the electric signals from the plurality of photo-detecting pixels; wherein the gate driver and the read-out IC initialize the plurality of photo-detecting pixels in response to an X-ray warm-up control signal causing warm up of the X-ray generator.
Claims11
An X-ray detector for photographing an object by receiving an X-ray irradiated from an X-ray generator, comprising:
- a plurality of photo-detecting pixels, each of which comprises a photodiode which detects an X-ray and generates data signal corresponding to an amount of a transmitted X-ray, and a switching device which transmits the data signal;
- a gate driver controlling the switching device by generating a gate pulse;
- and
- a read-out integrated circuit (IC) which reads out the data signals from the plurality of photo-detecting pixels;
- wherein the gate driver and the read-out IC initialize the plurality of photo-detecting pixels in response to an X-ray warm-up control signal causing warming up of the X-ray generator,
- the gate driver and the read-out IC initialize the plurality of photo-detecting pixels by reading out the plurality of photo-detecting pixels at least twice.
An X-ray photographing system comprising:
- an X-ray generator which is warmed up in response to an X-ray warm-up control signal, and which irradiates an X-ray in response to a photographing control signal;
- and
- an X-ray detector which photographs an object by receiving the X-ray irradiated from the X-ray generator;
- wherein the X-ray detector is initialized in response to the X-ray warm-up control signal,
- the X-ray detector comprises:
- a plurality of photo-detecting pixels, each of which comprises a photodiode which detects an X-ray and generates data signal corresponding to an amount of a transmitted X-ray, and a switching device which transmits the data signal;
- a gate driver which supplies a gate pulse to the switching device for turning on the switching device;
- and
- a read-out integrated circuit (IC) which reads out the data signals from the plurality of photo-detecting pixels;
- wherein the gate driver and the read-out IC initialize the plurality of photo-detecting pixels by reading out the plurality of photo-detecting pixels at least twice.
A method of driving an X-ray detector which photographs an object by receiving an X-ray irradiated from an X-ray generator, the method comprising the steps of:
- initializing the X-ray generator in response to an X-ray warm-up control signal calling for warm up of the X-ray generator;
- photographing an object in response to an exposure preparation signal calling for preparation of the X-ray detector for exposure;
- and
- reading out signals detected by each of a plurality of photo-detecting pixels after the X-ray exposure is complete,
- wherein the step of initializing the X-ray generator comprises initializing the plurality of photo-detecting pixels by reading out the plurality of photo-detecting pixels at least twice.
Dependencies are inferred from the claim text.