KR101115404B1 - X-ray detector - Google Patents

Abstract

An X-ray detecting apparatus capable of reducing weight includes a light detecting substrate, a light wavelength converting member, a light generating sheet, a lower resin plate, a main support plate, an X-ray blocking sheet, and a driving circuit board. The photodetecting substrate converts and converts light into electricity, and the light wavelength converting member is disposed above the photodetecting substrate to convert X-rays into light of a wavelength absorbed by the photodetecting substrate, and the photo-generating sheet is disposed below the photodetecting substrate. Can be disposed to provide light to the photodetecting substrate. The lower resin plate is disposed under the light generating sheet to support the light generating sheet and is made of a transparent synthetic resin, and the main support plate is disposed under the lower resin plate to support the lower resin plate. The X-ray blocking sheet is disposed between the lower resin plate and the main support plate to absorb and block the X-ray, and the driving circuit board is disposed under the main support plate and controls the driving of the photodetecting substrate and the light generating sheet. As such, as the lower resin plate made of synthetic resin is disposed under the light generating sheet, the total weight of the X-ray detection apparatus may be reduced.

Light generating sheet, lower resin board

Description

X-ray detector {X-RAY DETECTOR}

The present invention relates to an x-ray detecting apparatus, and more particularly, to an x-ray detecting apparatus capable of detecting the x-rays to photograph the inside of the object.

In general, X-rays have a short wavelength and can easily penetrate any object, and the amount of the X-ray may be determined by the degree of denseness inside the object. That is, the internal state of the object may be indirectly observed through the transmission amount of the X-ray that has passed through the object.

The X-ray detection apparatus is a device that detects the amount of transmission of the X-ray that has passed through the object, and detects the amount of transmission of the X-ray to display the internal state of the object to the outside through a display device. The X-ray detection apparatus may generally be used as a medical inspection apparatus, a non-destructive inspection apparatus, and the like.

The X-ray detecting apparatus generally includes an optical wavelength conversion member, a photodetecting substrate, a lower support plate, a main support plate, an X-ray blocking sheet, a light generating sheet, and a driving circuit board. The optical wavelength converting member converts the X-rays applied from the outside into visible light, and the photodetecting substrate converts the visible light converted by the optical wavelength converting member into electricity and detects the same. The lower support plate is disposed under the light detecting substrate and supports the main support plate, and the main support plate is disposed under the lower support plate to support the edge of the lower support plate. The X-ray blocking sheet is disposed in the upper receiving space of the main support plate and supported by the main support plate, and the light generating sheet is disposed on the X-ray blocking sheet to provide light to the photodetecting substrate. The driving circuit board is disposed under the main support plate to be electrically connected to and control the photodetecting substrate and the light generating sheet.

However, the lower support plate disposed below the photodetecting substrate uses a transparent glass substrate having a thickness of about 3.0 mm or more to support the photodetecting substrate, and as a result, the overall weight of the X-ray detecting apparatus is increased and the mobility is increased. There is a problem of this deterioration.

Therefore, the present invention is to solve this problem, the problem to be solved by the present invention is to provide an X-ray detection apparatus that can reduce the weight.

The X-ray detecting apparatus according to an embodiment of the present invention includes a light detecting substrate, a light wavelength converting member, a light generating sheet, a lower resin plate, a main support plate, an X-ray blocking sheet, and a driving circuit board.

The photodetector substrate detects light by converting the light into electricity, and the light wavelength converting member is disposed on the photodetector substrate, so that X-rays applied from the outside are absorbed by the photodetector substrate. To. The light generating sheet may be disposed under the photodetecting substrate to generate light and provide the light to the photodetecting substrate. The lower resin plate is disposed under the light generating sheet to support the light generating sheet and is made of a transparent synthetic resin. The main support plate is disposed under the lower resin plate to support the lower resin plate. The X-ray blocking sheet is disposed between the lower resin plate and the main support plate and supported by the main support plate, and absorbs and blocks the X-rays transmitted without being converted into the light by the optical wavelength conversion member. The driving circuit board is disposed under the main support plate and controls the driving of the photodetecting substrate and the light generating sheet.

The photo-generating sheet may include a first electrode layer, a second electrode layer, a light emitting layer, a dielectric layer, and a protective layer. The second electrode layer may be disposed on the first electrode layer, and the emission layer may be formed between the first and second electrode layers and generate light by an electric field formed between the first and second electrode layers. The dielectric layer is formed between the first electrode layer and the light emitting layer or between the light emitting layer and the second electrode layer to induce light emission in the light emitting layer. The protective layer is formed on the second electrode layer to protect the second electrode layer.

The first electrode layer may be formed on an upper surface of the lower resin plate. Alternatively, the photo-generating sheet may further include a base resin layer disposed under the first electrode layer to form the first electrode layer on an upper surface thereof, and made of a transparent synthetic resin. In this case, the x-ray detecting apparatus may further include a resin plate adhesive film disposed between the base resin layer and the lower resin plate to attach the base resin layer on the upper surface of the lower resin plate.

The first electrode layer may include at least one of a carbon layer and a silver paste, and the second electrode layer may be made of a transparent conductive material.

The main support plate may include a base plate for supporting the X-ray blocking sheet, and side plates respectively connected to both ends of the base plate.

The main support plate may have an H-shape to have upper and lower receiving spaces. In this case, the X-ray blocking sheet may be disposed in the upper accommodating space, and the driving circuit board may be disposed in the lower accommodating space.

The main support plate may have a c-shape to have a lower receiving space. In this case, the lower support plate may be disposed on the X-ray blocking sheet to be supported by the base plate, and the driving circuit board may be disposed in the lower receiving space.

On the other hand, the X-ray detecting apparatus has an outer case that houses and protects the light detecting substrate, the light wavelength conversion member, the light generating sheet, the lower resin plate, the main support plate, the X-ray blocking sheet, and the driving circuit board. It may further include.

The outer case may include a storage container portion and a top cover portion. The storage container part includes a container bottom plate and container sidewalls formed at an edge of the container bottom plate, so that the light detecting substrate, the light wavelength conversion member, the light generating sheet, the lower resin plate, the main support plate, and the X-ray blocking The sheet and the driving circuit board are accommodated. The top cover part is connected to an upper end of the side walls of the container to cover the opening of the storage container part, and the X-ray applied from the outside is transmitted. In this case, lower ends of the side plates may be connected to and fixed to the container bottom plate.

As described above, according to the X-ray detecting apparatus, the lower resin plate disposed under the light generating sheet is made of a relatively light synthetic resin and combined with the light generating sheet, so that the total weight of the X-ray detecting apparatus may be reduced.

As the inventive concept allows for various changes and numerous embodiments, particular embodiments will be illustrated in the drawings and described in detail in the text.

However, this is not intended to limit the present invention to the specific disclosed form, it should be understood to include all modifications, equivalents, and substitutes included in the spirit and scope of the present invention. Terms such as first and second may be used to describe various components, but the components should not be limited by the terms. The terms are used only for the purpose of distinguishing one component from another. For example, without departing from the scope of the present invention, the first component may be referred to as a second component, and similarly, the second component may also be referred to as a first component.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. Singular expressions include plural expressions unless the context clearly indicates otherwise. In this application, the terms "comprise" or "having" are intended to indicate that there is a feature, number, step, action, component, part, or combination thereof described in the specification, and that one or more other features It should be understood that it does not exclude in advance the possibility of the presence or addition of numbers, steps, actions, components, parts or combinations thereof.

In the drawings, the thickness of each device or film (layer) and regions has been exaggerated for clarity of the invention, and each device may have a variety of additional devices not described herein. When (layer) is mentioned as being located on another film (layer) or substrate, an additional film (layer) may be formed directly on or between the other film (layer) or substrate.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Reference will now be made in detail to the preferred embodiments of the present invention, examples of which are illustrated in the accompanying drawings.

≪ Example 1 >

1 is a cross-sectional view illustrating an X-ray detecting apparatus according to a first exemplary embodiment of the present invention, FIG. 2 is an enlarged plan view of a part of the photodetecting substrate of the X-ray detecting apparatus of FIG. 1, and FIG. It is sectional drawing cut along the line II '.

Referring to FIG. 1, the x-ray detecting apparatus according to the present embodiment includes a light detecting substrate 100, a light wavelength converting member 200, a light generating sheet 300, a lower resin plate 400, an X-ray blocking sheet 600, The main support plate 500, the driving circuit board 700, and the outer case 800 are included.

The photodetecting substrate 100 may detect the light by absorbing light applied from the outside, for example, visible light and converting the light into electricity. For example, the photodetecting substrate 100 may include a plurality of unit pixels arranged in a matrix or line form to detect different amounts of light according to positions. On the other hand, the photodetecting substrate 100 may have a thickness of about 1.2 mm.

The optical wavelength converting member 200 is disposed on the photodetecting substrate 100, and converts an X-ray applied from the outside into light having a wavelength detectable by the photodetecting substrate 100. do. That is, the light wavelength converting member 200 may change the X-rays into visible light, for example, green light, and provide the light to the light detecting substrate 100. In this case, the light wavelength conversion member 200 may have a thickness between about 0.7 mm and about 0.8 mm.

The light wavelength converting member 200 may include a bottom portion 210, a light wavelength converting portion 220, and a passivation layer 230. The bottom 210 may be a metal plate, for example, an aluminum plate, on which crystals may be grown, and may have a thickness of about 0,2 mm. The optical wavelength converter 220 is composed of scintillator crystals for converting the X-rays into the visible light, and the scintillator crystals are formed by growing downward from the bottom portion 210. For example, the light wavelength converter 220 may be formed of pillar-forming crystals of CsI doped with thallium (Tl), sodium (Na), or the like, and may have a thickness of about 0.5 mm. The passivation layer 230 may be formed on the bottom portion 210 to cover the light wavelength converter 220 to protect the light wavelength converter 220. For example, the passivation layer 230 may be made of polyparque or polyparacyrylylene.

The light wavelength converting member 200 may be attached to an upper surface of the light detecting substrate 100 through an adhesive layer 250 formed on a lower surface thereof. In this case, the adhesive layer 250 may have a thickness of about 0.2 mm. In addition, the light wavelength conversion member 200 and the photodetecting substrate 100 may be sealed by at least one seal line 270. For example, two seal lines 270 may be formed at an edge between the wavelength conversion member 200 and the photodetecting substrate 100.

The light generating sheet 300 may be disposed under the photodetecting substrate 100 to generate light to the photodetecting substrate 100. In this case, the light generating sheet 300 is attached to the lower surface of the light detecting substrate 100 by a sheet adhesive film 300a interposed between the light detecting substrate 100 and the light generating sheet 300. . The sheet adhesive film 300a may have a thickness of about 0.8 mm, for example.

The light generating sheet 300 may generate light having the same luminance to the entire surface of the upper surface of the light generating sheet 300 and provide it to the photodetecting substrate 100. As a result, the unit pixels of the photodetecting substrate 100 may be saturated in the same state by the light having the same brightness. In this case, the light generating sheet 600 may have a thickness between about 0.1 mm and about 0.3 mm.

The lower resin plate 400 is disposed under the light generating sheet 300 to support the light generating sheet 300. The lower resin plate 400 may be made of a transparent synthetic resin having a relatively light weight, for example, acrylate or polyethylene terephtalate (PET). In this case, the lower resin plate 400 may have a thickness of about 2.0 mm to about 3.0 mm.

The main support plate 500 is disposed below the lower resin plate 400 to support the lower resin plate 400. The main support plate 500 may include a base plate 510 and side plates 520. The base plate 510 may be disposed below the lower resin plate 400 in parallel with the lower resin plate 400, and may have a thickness of about 6.0 mm, for example. The side plates 520 are connected to both ends of the base plate 510 so as to have an H-shape to form upper and lower receiving spaces. In this case, upper ends of the side plates 520 may be in contact with both ends of the lower resin plate 400, and may be separately provided between upper ends of the side plates 520 and both ends of the lower resin plate 400. An adhesive layer (not shown) may be formed to fix the lower resin plate 400 to the upper ends of the side plates 520.

The X-ray blocking sheet 600 is disposed in the upper receiving space of the main support plate 500 and is supported by the base plate 510. The X-ray blocking sheet 600 may block the X-rays transmitted from the outside without being converted into visible light by the optical wavelength conversion member 200 to the driving circuit board 700 to be described later. . The X-ray blocking sheet 600 according to the present embodiment may be made of a high density heavy metal, for example, gold (Au), which may absorb and block the X-rays. The X-ray blocking sheet 600 may be attached to the top surface of the base plate 510 by a blocking sheet adhesive film 600a disposed on the bottom surface. In this case, the X-ray blocking sheet 600 may have a thickness of about 1.5 mm or less, and the blocking sheet adhesive film 600a may have a thickness of about 1.0 mm.

The driving circuit board 700 is disposed in a lower accommodation space of the main support plate 500. In this case, the driving circuit board 700 may be fixed to the base plate 510 by being spaced apart from the bottom surface of the base plate 510 by a plurality of driving board supporters 710. In this case, the driving circuit board 700 may have a thickness between about 2.0 mm and about 3.0 mm.

The driving circuit board 700 is electrically connected to the photodetecting substrate 100 and the light generating sheet 300, respectively, to control the driving of the photodetecting substrate 100 and the light generating sheet 300. Can be. In addition, the driving circuit board 700 may receive the detection signal detected by the photodetector substrate 100, analyze the detection signal, and store the amount of light detected by the unit pixels as data.

The outer case 800 includes all the components listed above, that is, the photodetecting substrate 100, the light wavelength converting member 200, the light generating sheet 300, the lower resin plate 400, and the main support. The plate 500, the X-ray blocking sheet 600, the driving circuit board 700, and the like are stored and protected. The outer case 800 may include, for example, a storage container part 810 and a top cover part 820.

The container 810 includes a container bottom plate and container sidewalls formed at an edge of the container bottom plate to form a storage space. All of the above components are accommodated in the storage space. Here, the lower ends of the side plates 520 may be attached and connected to the container bottom plate by an adhesive or the like, whereby the main support plate 500 may be fixed to the storage container part 810.

The top cover part 820 may be connected to an upper end of the side walls of the container to cover the opening of the storage container part 810 to seal the storage space. In this case, the X-rays applied from the outside may be applied to the light wavelength changing member 200 by passing through the top cover part 820, and may be, for example, a carbon plate. Meanwhile, the storage container part 810 may have a thickness of about 1.2 mm to about 1.5 mm, and the top cover part 820 may have a thickness of about 1.5 mm or more.

Hereinafter, the photodetecting substrate 100 will be described in detail.

2 and 3, the photodetecting substrate 100 may include a base substrate SB, gate lines 110, a gate insulating layer 120, data lines 130, thin film transistors TFT, PIN diodes (DI), the device passivation layer 150, the bias lines 160, the light blocking portions 170, and the outer passivation layer 180 may be included.

The base substrate SB has a plate shape and may be made of a transparent material, for example, glass, quartz, synthetic resin, or the like. The gate lines 110 are formed to extend in a first direction on the base substrate 100, and the gate insulating layer 120 covers the gate lines 110. Is formed on the phase. The data lines 130 are formed to extend in the second direction crossing the first direction on the gate insulating layer 120. At this time, the second direction is preferably a direction orthogonal to the first direction.

The thin film transistors TFT are formed adjacent to a point where the gate lines 110 and the data lines 130 cross each other. Each of the thin film transistors TFT includes a gate electrode G, an active pattern A, an ohmic contact pattern O, a source electrode S, and a drain electrode D. FIG. The gate electrode G is branched from the gate wiring 110, and the active pattern A is formed on the gate insulating layer 120 to overlap the gate electrode G. The source electrode D is branched from the data line 130 to overlap the active pattern A, and the drain electrode D is spaced apart from the source electrode D. Overlapping with the gate insulating layer 120. The ohmic contact pattern O is formed between the source electrode S and the active pattern A, and between the drain electrode D and the active pattern A, respectively, and has a contact resistance between the electrode and the pattern. Decreases.

The PIN diodes DI are formed on the gate insulating layer 120 to be electrically connected to the thin film transistors TFT, respectively. In this case, each of the PIN diodes DI may include a lower electrode part LP, a light conversion semiconductor part 140, and an upper electrode part HP.

The lower electrode part LP is formed on the gate insulating layer 120 and is electrically connected to the drain electrode D. FIG. For example, the lower electrode part LP may be formed by the same process as the drain electrode D and may be directly connected to the drain electrode D. FIG. Alternatively, the lower electrode part LP may be formed by a process different from that of the drain electrode D, and may be disposed above or below the drain electrode D. FIG. In this case, the lower electrode part LP may be made of a transparent conductive material having a lower electrical resistance than the drain electrode D and having a low thermal expansion stress, for example, an indium tin oxide (ITO) material.

The light conversion semiconductor unit 140 is formed on the lower electrode part LP to absorb light emitted from the light wavelength conversion member 200 and convert the light into electricity. The photoconversion semiconductor unit 140 includes an N-type semiconductor layer 142 formed on the lower electrode part LP, an intrinsic semiconductor layer 144 formed on the N-type semiconductor layer 142, and the intrinsic semiconductor layer. P-type semiconductor layer 146 formed on 144. In this case, in order to increase light absorption efficiency, the intrinsic semiconductor layer 144 may be formed relatively thicker than the N-type and P-type semiconductor layers 142 and 146.

The upper electrode portion HP is formed on the photoconversion semiconductor portion 140. The upper electrode part HP may be made of a transparent conductive material, for example, indium tin oxide (ITO), indium zinc oxide (IZO), or the like, to transmit light emitted from the light wavelength conversion member 200.

The device protection layer 150 is formed on the gate insulating layer 120 to cover the data lines 130, the thin film transistors TFT, and the PIN diodes DI. Bias contact holes 152 are formed in the device passivation layer 150 to expose portions of the PIN diodes DI, that is, a part of the upper electrode portions HP. The device protection film 150 may be an inorganic insulating film or an organic insulating film, but is preferably an inorganic insulating film made of silicon oxide (SiOx) or silicon nitride (SiNx).

The bias wires 160 are formed on the device protection layer 150 to be in electrical contact with the upper electrode portions HP through the bias contact holes 152, respectively. The bias wires 160 may receive a reverse bias or a forward bias from an external bias driver (not shown), and provide the bias wires 160 to the upper electrode portions HP, respectively.

The bias wires 160 may be formed to extend in the first direction or the second direction on the device protection layer 150. In this case, the bias wires 160 may be formed along the second direction to be substantially parallel to the data wires 130. Meanwhile, each of the bias lines 160 may be formed to be adjacent to or overlap with the data line 130 in order to minimize a region overlapping with the PIN diode DI to increase a fill factor.

Each of the bias wires 160 may include a double layer structure, for example, a transparent wire part 162 and a metal wire part 164. The transparent wiring part 162 is formed on the device protection layer 150 to be in electrical contact with the upper electrode part HP through the bias contact hole 152. In this case, the transparent wiring part 162 is made of substantially the same material as the upper electrode part HP, that is, a transparent conductive material. The metal wire part 164 is formed on the transparent wire part 162 and electrically connected to the bias driver. In the present exemplary embodiment, the transparent wiring portion 162 may be formed to have a larger area than the metal wiring portion 164, and may be omitted in some cases.

The light blocking parts 170 are formed on the thin film transistors TFT to cover the thin film transistors TFT, and as a result, light emitted from the wavelength conversion member 200 is transferred to the thin film transistors. It can block the application into (TFT).

The light blocking parts 170 may be formed at the same time when the bias lines 160 are formed, and thus may be formed on the device protection layer 150 to cover the thin film transistors TFT. In this case, the light blocking units 170 may also be formed in a double layer structure in the same manner as the bias line 160. Alternatively, the light blocking units 170 may be formed in a single layer structure in which the lower layer corresponding to the transparent wiring unit 162 is removed. It may be. The light blocking parts 170 may be connected to and integral with the bias wires 160 as shown in FIG. 2, but may be formed to be spaced apart from the bias wires 160.

The outer passivation layer 180 is formed on the device passivation layer 150 to cover the bias wires 160 and the light blocking portions 170. The outer passivation layer 180 may be an organic insulating layer or an inorganic insulating layer, but it is preferable that the outer protective layer 180 is an organic insulating layer capable of flattening an upper surface while protecting internal components.

4 is an enlarged cross-sectional view of a portion A of FIG. 1.

Hereinafter, the light generating sheet 300 will be described in more detail with reference to FIG. 4.

The light generating sheet 300 may include a first electrode layer 310, a dielectric layer 320, a light emitting layer 330, a second electrode layer 340, and a protective layer 350.

The first electrode layer 310 is formed on the upper surface of the lower resin plate 400. The first electrode layer 310 may be formed on the upper surface of the lower resin plate 400 by a thin film forming method such as chemical vapor deposition, silk screen, sputtering, spin coating, or the like. The first electrode layer 310 may include at least one of a carbon layer and a silver paste.

The dielectric layer 320 may be formed on the first electrode layer 310 by the thin film forming method, and induces light emission from the light emitting layer 330 to be described later. The dielectric layer 320 may be formed of, for example, a dielectric paint composed of a dielectric and a binder, and the dielectric may be formed of a ferroelectric such as barium titanate (BaTiO 3).

The light emitting layer 330 may be formed on the dielectric layer 320 by the thin film forming method, and generates light by an electric field generated between the first and second electrode layers 310 and 340. The light emitting layer 330 may be formed of, for example, a fluorescent paint composed of a phosphor and a binder.

The second electrode layer 340 may be formed on the light emitting layer 330 by the thin film forming method. The second electrode layer 340 may be made of a transparent conductive material such as indium tin oxide or indium zinc oxide.

The protective layer 350 is formed on the second electrode layer 340 to protect the second electrode layer 340. For example, the protective layer 350 may be an organic insulating layer.

Meanwhile, different voltages may be applied to the first and second electrode layers 310 and 340 to generate an electric field between the first and second electrode layers 310 and 340. Light is generated in the light emitting layer 330. In this case, the light generated in the light emitting layer 330 is emitted upward through the second electrode layer 340, it is preferable that the first electrode layer 310 is reflected. In addition, the voltage applied to the first and second electrode layers 310 and 340 may be controlled by the driving circuit board 700.

<Example 2>

5 is an enlarged cross-sectional view of a portion of a light generating sheet in the X-ray detecting apparatus according to the second embodiment of the present invention.

The X-ray detecting apparatus according to the present exemplary embodiment is substantially the same as the X-ray detecting apparatus of the first exemplary embodiment described with reference to FIGS. 1 to 4 except for a part of the light generating sheet 300, and thus, other than the light generating sheet 300. Detailed description of the other components of the above will be omitted, and the same reference numerals will be given to the same components as in the first embodiment.

Referring to FIG. 5, the photo-generating sheet 300 further includes a base resin layer 360 disposed below the first electrode layer when compared with FIG. 4.

The base resin layer 360 may be made of a transparent synthetic resin, for example, acrylate or polyethylene terephtalate (PET). In this case, the first electrode layer 310 may be formed on the top surface of the base resin layer 360 by a thin film forming method such as a chemical vapor deposition method, a silk screen method, a sputtering method, a spin coating method.

Meanwhile, a resin plate adhesive film 400a may be disposed between the base resin layer 360 and the lower resin plate 400. As the base resin layer 360 is attached to the upper surface of the lower resin plate 400 by the resin plate adhesive film 400a, the light generating sheet 300 may be fixed to the lower resin plate 400. Can be.

<Example 3>

6 is a cross-sectional view illustrating an X-ray detecting apparatus according to a third exemplary embodiment of the present invention.

The X-ray detection apparatus according to the present embodiment is substantially the same as the X-ray detection apparatus of the first embodiment described with reference to FIGS. 1 to 4 except for the main support plate 500, and thus, other than the main support plate 500. Detailed description of the components will be omitted, the same reference numerals will be given to the same components as in the first embodiment.

Referring to FIG. 6, the main support plate 500 according to the present embodiment includes a base plate 510 and side plates 520.

The base plate 510 may be disposed below the lower resin plate 400 in parallel with the lower resin plate 400, and may have a thickness of about 6.0 mm, for example. Here, the blocking sheet adhesive film 600a and the X-ray blocking sheet 600 are disposed on the upper surface of the base plate 510, and the lower resin plate 400 is disposed on the X-ray blocking sheet 600.

The side plates 520 are respectively connected to both ends of the base plate 510 to have a c-shape. That is, the side plates 520 protrude downward from both ends of the base plate 510 so that the main support plate 500 has a lower storage space. In this case, a driving circuit board 700 is disposed in the lower accommodating space, and is fixed to the base plate 510 by being spaced apart from a lower surface of the base plate 510 by a plurality of driving board supporters 710. Can be.

As described above, according to the present exemplary embodiments, the lower resin plate disposed below the light generating sheet is made of a relatively light synthetic resin and combined with the light generating sheet, so that the total weight of the X-ray detection apparatus may be reduced, and as a result, The mobility of the X-ray detection apparatus can be increased. In this case, the light generating sheet may be directly formed by a thin film forming method on the upper surface of the lower resin plate as shown in FIG. 4, or may be attached to the upper surface of the lower resin plate by a resin plate adhesive film as shown in FIG. 5. Here, as shown in FIG. 4, the light generating sheet is formed directly on the upper surface of the lower resin plate, unlike in FIG. 5, so that the weight of the X-ray detecting apparatus may be further reduced.

On the other hand, when the main support plate is formed in the c-shape as shown in Figure 6, the weight and thickness of the X-ray detection apparatus can be reduced than when formed in the H-shape as shown in FIG.

In the detailed description of the present invention described above with reference to the preferred embodiments of the present invention, those skilled in the art or those skilled in the art having ordinary skill in the art will be described in the claims to be described later It will be understood that various modifications and variations can be made in the present invention without departing from the scope of the present invention.

1 is a cross-sectional view illustrating an X-ray detection apparatus according to a first embodiment of the present invention.

FIG. 2 is an enlarged plan view of a part of the photodetecting substrate in the X-ray detecting apparatus of FIG. 1.

3 is a cross-sectional view taken along line II ′ of FIG. 2.

4 is an enlarged cross-sectional view of a portion A of FIG. 1.

5 is an enlarged cross-sectional view of a portion of a light generating sheet in the X-ray detecting apparatus according to the second embodiment of the present invention.

6 is a cross-sectional view illustrating an X-ray detecting apparatus according to a third exemplary embodiment of the present invention.

<Short Description of Main Drawing Numbers>

100: light detection substrate 200: light wavelength conversion member

300: light generating sheet 300a: sheet adhesion film

400: lower resin plate 400a: resin plate adhesive film

500: main support plate 600: X-ray blocking sheet

700: driving circuit board 800: outer case

Claims (14)

An optical wavelength converting member converting an X-ray applied from the outside into first light and outputting the first light; A photodetecting substrate disposed under the optical wavelength converting member and converting the first light into electricity to detect the first light; A light generating sheet disposed below the photodetecting substrate and capable of generating a second surface light in the form of a surface and providing the light to the photodetecting substrate; A lower resin plate disposed under the light generating sheet to support the light generating sheet and made of a transparent synthetic resin; A main support plate disposed below the lower resin plate to support the lower resin plate; An X-ray blocking sheet disposed between the lower resin plate and the main support plate and supported by the main support plate, the X-ray blocking sheet absorbing and blocking X-rays transmitted without being converted into the light by the optical wavelength conversion member; And And a driving circuit board disposed under the main support plate to control driving of the photodetecting substrate and the photo-generating sheet. The method of claim 1, wherein the light generating sheet A first electrode layer; A second electrode layer disposed on the first electrode layer; A light emitting layer formed between the first and second electrode layers and capable of generating light by an electric field formed between the first and second electrode layers; A dielectric layer formed between the first electrode layer and the light emitting layer or between the light emitting layer and the second electrode layer to induce light emission from the light emitting layer; And a protective layer formed on the second electrode layer to protect the second electrode layer. The method of claim 2, wherein the first electrode layer X-ray detection apparatus characterized in that formed on the upper surface of the lower resin plate. The method of claim 2, wherein the light generating sheet The first electrode layer is formed on the lower portion of the first electrode layer is formed on the upper surface, X-ray detection apparatus comprising a further comprising a base resin layer made of a transparent synthetic resin. The x-ray detecting apparatus of claim 4, further comprising a resin plate adhesive film disposed between the base resin layer and the lower resin plate to attach the base resin layer on an upper surface of the lower resin plate. . The method of claim 2, wherein the first electrode layer comprises at least one of a carbon layer and a silver paste. The second electrode layer is an X-ray detection apparatus, characterized in that made of a transparent conductive material. The method of claim 1, wherein the main support plate A base plate supporting the x-ray blocking sheet; And And side plates connected to both ends of the base plate, respectively. The method of claim 7, wherein the main support plate An x-ray detecting apparatus having an H-shape to have upper and lower receiving spaces. The method of claim 8, wherein the X-ray blocking sheet is disposed in the upper receiving space, And the driving circuit board is disposed in the lower receiving space. The method of claim 7, wherein the main support plate X-ray detection apparatus characterized in that it has a c-shape to have a lower receiving space. The method of claim 10, wherein the lower support plate is disposed on the X-ray blocking sheet is supported by the base plate, And the driving circuit board is disposed in the lower receiving space. 8. The display device of claim 7, further comprising an outer case accommodating and protecting the light detecting substrate, the light wavelength converting member, the light generating sheet, the lower resin plate, the main support plate, the X-ray blocking sheet, and the driving circuit board. X-ray detection apparatus, characterized in that. The method of claim 12, wherein the outer case The light detecting substrate, the light wavelength converting member, the light generating sheet, the lower resin plate, the main support plate, the X-ray blocking sheet, and the drive, including a container bottom plate and container sidewalls formed at an edge of the container bottom plate. An accommodating container part accommodating a circuit board; And And a top cover part connected to an upper end of the side walls of the container to cover the opening of the storage container part, and through which the X-ray applied from the outside is transmitted. The method of claim 13, wherein the lower end of the side plates are X-ray detection apparatus characterized in that the fixed to the container bottom plate connected.

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