IP Library Granted Patent US 7,626,177
Granted Patent B2
US 7,626,177 · App. 12/137,644 · Granted Dec 1, 2009

Method for detecting X-rays and X-ray detector performing the method

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Quick Facts
Patent No.
US 7,626,177
App. No.
12/137,644
Granted
Dec 1, 2009
Kind
B2
Abstract

A method for detecting X-rays using an X-ray detector including an X-ray detecting part includes disposing a heat-circulating part adjacent to the X-ray detecting part. The X-ray detecting part includes light-detecting diodes. The method further includes detecting ambient temperatures of the light detecting diodes, circulating heat in the heat-circulating part based upon a result of the detecting the ambient temperatures of the light detecting diodes, increasing a uniformity of the ambient temperatures of the light-detecting diodes, and detecting X-rays irradiated into the X-ray detector.

Claims (40)

1. A method for detecting X-rays comprising:

increasing a uniformity of ambient temperatures of light-detecting diodes in an X-ray detector by adjusting a temperature of a heat transfer material in heat-circulating paths disposed along substantially an entire surface of a heat-circulating plate; and

detecting X-rays irradiated into the X-ray detector,

wherein the heat-circulating paths are formed through the heat-circulating plate to be disposed in the heat-circulating plate.

2. The method for detecting X-rays of claim 1 , further comprising:

detecting the ambient temperatures of the light-detecting diodes based on a leakage current of the light-detecting diodes.

3. The method for detecting X-rays of claim 2 , wherein the increasing the uniformity of the ambient temperatures of the light-detecting diodes comprises:

comparing the ambient temperatures of the light-detecting diodes with a reference temperature; and

one of increasing the ambient temperatures of the light-detecting diodes to the reference temperature and decreasing the ambient temperatures of the light-detecting diodes to the reference temperature.

4. The method for detecting X-rays of claim 3 , wherein the reference temperature has a range from approximately 20° C. to approximately 40° C.

5. An X-ray detector comprising:

an X-ray detecting part comprising a plurality of light-detecting diodes; and

a heat-circulating part disposed adjacent to the X-ray detecting part, the heat-circulating part comprising:

a heat-circulating plate;

a plurality of heat-circulating paths disposed covering substantially the entire surface of the heat-circulating plate, the heat-circulating paths formed through the heat-circulating plate to be disposed in the heat-circulating plate;

wherein the heat-circulating part circulates heat to increase a uniformity of ambient temperatures of the light-detecting diodes.

6. The X-ray detector of claim 5 , wherein the heat-circulating pipe circulates heat to surfaces of the X-ray detector.

7. The X-ray detector of claim 6 , wherein the heat-circulating plate comprises a metallic material having a high thermal conductivity.

8. The X-ray detector of claim 7 , wherein the heat-circulating plate comprises aluminum (Al).

9. The X-ray detector of claim 6 , further comprising a heat transfer material disposed in the plurality of heat-circulating paths.

10. The X-ray detector of claim 9 , wherein a phase of the heat transfer material comprises at least one of a liquid phase and a gas phase.

11. The X-ray detector of claim 5 , further comprising:

a temperature control part disposed adjacent to the heat-circulating part, wherein the temperature control part exchanges heat with the heat-circulating part to increase the uniformity of the ambient temperatures of the light-detecting diodes.

12. The X-ray detector of claim 11 , wherein the temperature control part comprises:

a heat-generating part which generates heat, is disposed adjacent to the heat-circulating part, and transfers the heat to the heat-circulating part to increase the ambient temperatures of the light-detecting diodes; and

a heat-absorbing part disposed adjacent to the heat-circulating part and which absorbs heat from the heat-circulating part to decrease the ambient temperatures of the light-detecting diodes.

13. The X-ray detector of claim 11 , wherein the temperature control part comprises an air fan disposed under the heat-circulating part,

wherein the air fan transfers heat from the heat-circulating part to outside the X-ray detecting part.

14. The X-ray detector of claim 13 , wherein the temperature control part further comprises a heat transfer member comprising a first surface and being disposed between the air fan and the heat-circulating part,

wherein the first surface of the heat transfer member is disposed on the heat-circulating part to transfer the heat from the heat-circulating part to the outside the X-ray detecting part via the air fan.

15. The X-ray detector of claim 14 , wherein the heat transfer member further comprises a second surface opposite the first surface and including a concavo-convex part formed thereon, wherein the concavo-convex part increases a surface area of the heat transfer member.

16. The X-ray detector of claim 11 , wherein the temperature control part comprises a thermoelectric semiconductor disposed adjacent to a bottom surface of the heat-circulating part,

wherein a function of the thermoelectric semiconductor includes at least one of absorption of heat from the heat-circulating part and supply of heat to the heat-circulating part.

17. The X-ray detector of claim 16 , wherein the temperature control part further comprises an air fan disposed adjacent to the thermoelectric semiconductor and which supplies the thermoelectric semiconductor with air.

18. The X-ray detector of claim 11 , further comprising a temperature control circuit part electrically connected to the temperature control part to control the temperature control part.

19. The X-ray detector of claim 18 , wherein the temperature control circuit part is electrically connected to the X-ray detecting part to receive a temperature detecting signal which corresponds to the ambient temperatures of the light-detecting diodes, and which controls heat exchange between the temperature control part and the heat-circulating part based on the temperature detecting signal.

20. The X-ray detector of claim 5 , wherein the X-ray detecting part comprises:

a detection panel comprising the plurality of light-detecting diodes, thin-film transistors electrically connected to the plurality of light-detecting diodes and signal lines electrically connected to the thin-film transistors;

a driving printed circuit board disposed adjacent to a bottom surface of the heat-circulating part; and

a flexible printed circuit board which electrically connects the detection panel to the driving printed circuit board.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Sep 27, 2012
From: SAMSUNG ELECTRONICS CO., LTD.
To: SAMSUNG DISPLAY CO., LTD.
Reel/Frame 029093/0177 →