KR101046194B1 - Image recognizer - Google Patents

Abstract

An image recognizer capable of improving the recognition speed of a target paper image is placed in an outer case capable of entering and exiting target paper, a surface light source unit disposed in the outer case to provide planar light to the target paper, and disposed in the outer case. An image recognition substrate configured to receive image light formed by plane light provided on the target paper and sense image of the target paper at one time to generate image data; And an image driving board for driving the surface light source unit and the image recognition substrate and receiving image data from the image recognition substrate and transmitting the image data to an external system. As described above, the image recognition substrate is applied to sense the image light formed by the plane light passing through the target paper or reflected from the target paper at one time, thereby increasing the capture speed of the target paper image.

Image recognition board, surface light source unit

Description

Image recognizer {IMAGE CAPTURE DEVICE}

The present invention relates to an image recognizer, and more particularly, to an image recognizer capable of capturing an image of a business card, a photo, and the like.

A general scanner refers to an apparatus for extracting image data by sensing light passing through a target paper such as a photograph or a document printing paper. That is, the general scanner includes a light source unit for generating light and an image sensor for sensing light reflected from the target paper.

The light source unit generally generates line light formed to extend in one direction. Accordingly, the image sensor is also formed in a line shape so as to correspond to the line light. Therefore, the general scanner further includes a scan transfer unit which moves the light source unit and the image sensor in one direction to perform a scan while moving the light source unit and the image sensor together to scan the entire area of the target paper. .

As described above, since the general scanner performs scanning while moving the light source unit and the image sensor to recognize the image formed in the entire area of the target paper, the capture speed of the target paper image is reduced. There is.

Therefore, the present invention is to solve this problem, the problem to be solved by the present invention is to provide an image recognizer that can improve the recognition speed of the target paper image.

The image recognizer according to an embodiment of the present invention includes an outer case, a surface light source unit, an image recognition substrate, and an image driving board.

The outer case has a structure in which a target paper can be loaded in and out. The surface light source unit is disposed in the outer case to provide plane light to the target paper. The image recognition substrate is disposed in the outer case and receives image light formed by the plane light provided to the target paper, and generates image data by sensing the image of the target paper at once. The image driving board drives the surface light source unit and the image recognition substrate, and receives the image data from the image recognition substrate and transmits the image data to an external system.

The image recognition substrate may include a plurality of sensing pixels for sensing the image of the target paper by receiving the image light, and each of the sensing pixels includes a light sensing unit capable of sensing the intensity of the image light. Can be.

The surface light source unit may be disposed to face one surface of the target paper to provide the plane light to one surface of the target paper, and the image recognition substrate may be disposed to face the other surface of the target paper, and the plane light may be disposed on the target paper. The image of the target paper may be sensed by receiving the image light formed through the target paper. The image driving board may be disposed adjacent to one side of the surface light source unit or one side of the image recognition substrate. In addition, the plane light generated by the surface light source unit may include light of a short wavelength that can pass through the target paper of visible light.

On the other hand, the image recognition substrate is disposed between the surface light source unit and the target paper and transmits a portion of the plane light emitted from the surface light source unit to one surface of the target paper, the transmitted plane light is the target paper The image light reflected by the light may be applied to sense an image of the target paper. Each of the sensing pixels may be divided into a transmission area for transmitting a portion of the plane light applied from the surface light source unit and a light shielding area for blocking the rest of the plane light, and the light sensing unit is formed in the light blocking area. Can be. The image recognition substrate may include a light blocking pattern layer formed in the light blocking area to block the rest of the planar light.

The light sensing unit may include a photodiode capable of sensing the image light, and a switching diode controlling the driving of the photodiode. The N side terminal of the photodiode may be electrically connected to the N side terminal of the switching diode. In addition, the photodiode and the switching diode may be simultaneously formed by the same manufacturing process.

The light sensing unit may include a photodiode capable of sensing the image light, and a switching transistor for controlling driving of the photodiode. The N-side terminal of the photodiode may be electrically connected to the drain terminal or the emitter terminal of the switching transistor.

One side wall of the outer case may be a paper entry and exit for entering and exiting the target paper. The image recognizer may further include a light blocking unit covering the paper entrance and exit to block external light from being applied into the external case through the paper entrance and exit. The light blocking unit may include a light blocking stopper which is coupled to one side wall of the outer case to cover the paper entry and exit port.

The outer case may include a storage container part having an upper storage space, and a moving cover part connected to one side of the storage container part to cover and open the open portion of the storage container part through a rotational movement. Can be.

The image recognizer may further include a transparent support plate disposed under the target paper to support the target paper.

The image recognition substrate may include a first recognition substrate and a second recognition substrate. The first recognition substrate is disposed between the target paper and the surface light source unit, transmits part of the plane light emitted from the surface light source unit to the target paper, and reflects the light from the target paper of the transmitted plane light. The first image data may be generated by sensing the image of one surface of the target paper by applying the received light. The second recognition substrate is disposed on the opposite side of the first recognition substrate with respect to the target paper, and the light passing through the target paper of the plane light emitted from the surface light source unit and transmitted through the first recognition substrate. The second image data may be generated by sensing an image of both sides of the target paper by receiving the.

The first recognition substrate may include a plurality of sensing pixels each having a light sensing unit capable of sensing light, and each of the sensing pixels transmits a portion of the plane light emitted from the surface light source unit. An area and a light blocking area for blocking the rest of the plane light may be divided, and the light sensing unit may be formed in the light blocking area.

The image driving board may receive the first and second image data from the first and second recognition substrates, respectively, and distinguish images formed on both surfaces of the target paper using the first and second image data. have.

As described above, according to the image recognizer, unlike the scanner scanning by line, the recognition speed of the image recognizer can be increased by sensing an image formed in the entire area of the target paper at once through the image recognition substrate.

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.

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.

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 perspective view illustrating an image recognizer according to a first exemplary embodiment of the present invention, and FIGS. 2 and 3 are cross-sectional views taken along the line II ′ of FIG. 1.

1 and 2, the image recognizer ICD according to the present embodiment includes an outer case 100, a surface light source unit 200, an image recognition substrate 300, and an image driving board 400.

The outer case 100 has a storage space for accommodating the surface light source unit 200, the image recognition substrate 300, and the image driving board 400. In addition, the outer case 100 preferably has a structure capable of entering and exiting a target paper (target paper, 10) therein, for example, the target paper (10) on one side wall of the outer case (100) Paper entry and exit 100a for the entry and exit of the can be formed.

The surface light source unit 200 is disposed in the outer case 100 to provide light to the entire area of the target paper 10. That is, the surface light source unit 200 is disposed to face one surface of the target paper 10 to provide planar light to one surface of the target paper 10. The surface light source unit 200 may be an EL sheet (Electro Luminescence sheet) for generating plane light, or may be a direct type backlight unit or an edge type backlight unit. The surface light source unit 200 may be a light source for generating light, and may include a light emitting diode.

The planar light generated by the surface light source unit 200 is preferably light in a wavelength band that can pass through the target paper 10. Specifically, the planar light generated by the surface light source unit 200 may be light of a short wavelength band, for example, blue light, which can easily pass through the target paper 10 among visible light.

The image recognition substrate 300 is disposed to face the other surface of the target paper 10 so that the planar light is applied to the image light formed by passing through the target paper 10 in all areas of the target paper 10. Can sense an image. Accordingly, the image recognition substrate 300 may generate image data of an image of the target paper 10. Here, the image light has information about an image formed in all areas on both sides of the target paper 10 because the plane light passes through the entire area of the target paper 10. On the other hand, a detailed description of the image recognition substrate 300 will be described later using a separate drawing.

The image driving board 400 is disposed on one side of the surface light source unit 200. Specifically, the image driving board 400 is disposed on one side of the surface light source unit 200 opposite to the target paper 10, that is, on the bottom surface of the surface light source unit 200. The image driving board 400 is electrically connected to the surface light source unit 200 to drive the surface light source unit 200. For example, the image driving board 400 may control the surface light source unit 200 to adjust the intensity of light generated by the surface light source unit 200.

The image driving board 400 may be electrically connected to the image recognition substrate 300 to control the image recognition substrate 300 or to receive the image data from the image recognition substrate 300. Here, when the image is formed on both sides of the target paper 10 so that the image light transmitted through the target paper 10 has information on the double-sided image of the target paper 10, the image driving board ( 400 may separate the double-sided image by analyzing and data processing the image data. Meanwhile, the image recognition substrate 300 may transmit the image data to an external system (not shown) by wireless or wired.

Meanwhile, referring to FIG. 3, the surface light source unit 200 and the image recognition substrate 300 may be disposed at both sides with respect to the target paper 10, but different from each other. That is, the surface light source unit 200 may be disposed above the target paper 10, and the image recognition substrate 300 may be disposed below the target paper 20. As a result, the image driving board 400 may be disposed on one side of the image recognition substrate 300, that is, the lower side of the image recognition substrate 300.

4 is a circuit diagram illustrating an embodiment of a sensing pixel of an image recognition substrate of the image recognizer of FIG. 2 or 3.

Referring to FIG. 4, the image recognition substrate 300 is generated in the surface light source unit 200 and receives the light transmitted through the target paper 10, that is, the image light, and the entire area of the target paper 10. It consists of a plurality of sensing pixels arranged in a matrix so as to sense the image formed in the.

Each of the sensing pixels includes a gate line GL extending in one direction, a data line DL extending in a direction crossing the gate line GL, the gate line GL, and the data line DL. ) And an optical sensor unit LS electrically connected thereto. The photo sensor unit LS may include a photo diode PD, a switching diode SD, and a node electrode NE.

The P side terminal of the photodiode PD is electrically connected to the data line DL, and the N side terminal of the photodiode PD is electrically connected to the N side terminal of the switching diode SD. The P-side terminal of the switching diode SD is electrically connected to the gate line GL.

A node electrode NE is formed between the N side terminal of the photodiode PD and the N side terminal of the switching diode SD to connect the both terminals to each other. In addition, a capacitor (not shown) may be further formed between the node electrode NE and the data line DL. In this case, the capacitor may be formed between the node electrode NE and the gate line GL or between the node electrode NE and a ground terminal (not shown).

The driving principle of the sensing pixel illustrated in FIG. 4 will be briefly described. First, a forward voltage is applied to the switching diode SD by applying a gate signal to the gate line GL. In this case, the gate signal is a signal having a voltage higher than that applied to the data line DL. When the gate signal is applied to the gate line GL, the gate diode turns on the switching diode SD. Can be.

While the gate signal is applied to the gate line GL, the photodiode PD receives external light to sense the intensity of the light. Specifically, since the reverse voltage is applied to the photodiode PD by the gate signal, current does not flow through the photodiode PD. However, when external light is applied to the photodiode PD in this state, electrons and holes are generated in the photodiode PD, and current flows through the data line DL. The intensity of light applied to a readout part (not shown) and applied to the photodiode PD may be read. That is, the intensity of light applied to the photodiode PD may be indirectly measured by sensing the amount of current flowing into the photodiode PD.

Meanwhile, when the capacitor is connected between the node electrode NE and the data line DL, when the gate signal is applied to the gate line DL and the switching diode SD is turned on, The charge is charged in the capacitor, and as a result, the photodiode PD receives the reverse voltage by the charge charged in the capacitor even though the gate signal is not applied. As described above, the capacitor not only shortens the application time of the gate signal but also increases the light sensing time of the photodiode PD.

5 is a cross-sectional view illustrating a sensing pixel of the image recognition substrate of FIG. 4.

Referring to FIG. 5, the image recognition substrate 300 illustrated in FIG. 4 may include a transparent base substrate 310, an optical sensor unit LS, a first insulating layer 320, a gate wiring GL, and a second insulating layer ( 330, a data line DL, and a light blocking part BP. In this case, the optical sensor part LS may include a node electrode NE, a photodiode PD, and a switching diode SD.

The node electrode NE is formed on the transparent base substrate 310, and the photodiode PD and the switching diode SD are formed spaced apart from each other on the transparent base substrate 310. Each of the photodiode PD and the switching diode SD may have a structure formed by stacking an N-type semiconductor part, an I-type semiconductor part, and a P-type semiconductor part, and a transparent electrode part may be further formed on the P-type semiconductor part. . That is, the photodiode PD and the switching diode SD may be simultaneously formed by the same manufacturing process.

The first insulating layer 320 is formed on the transparent base substrate 310 to cover the photodiode PD and the switching diode SD. The gate line GL is formed on the first insulating layer 320 and is in electrical contact with the transparent electrode of the switching diode SD through the gate contact hole formed in the first insulating layer 320. The second insulating layer 330 is formed on the first insulating layer 320 to cover the gate line GL. The data line DL is formed on the second insulating layer 330, and the transparent electrode portion of the photodiode PD is formed through data contact holes formed over the first and second insulating layers 320 and 330. Is in electrical contact with The light blocking part BP is formed on the second insulating layer 330 to cover the switching diode SD. In this case, the data line DL and the light blocking part BP may be simultaneously formed by the same manufacturing process.

6 is a circuit diagram illustrating another embodiment of a sensing pixel of an image recognition substrate of the image recognizer of FIG. 2 or 3.

Referring to FIG. 6, each of the sensing pixels of the image recognizer 300 may include a gate line GL, a data line DL, a bias line VL, and an optical sensor unit LS, unlike FIG. 4. Can be. The photo sensor unit LS may include a photo diode PD and a switching transistor TFT.

The gate line GL extends in one direction, and the data line DL and the bias line VL extend in a direction crossing the gate line GL and are spaced apart from each other. The P side terminal of the photodiode PD is electrically connected to the bias wiring VL, and the N side terminal of the photodiode PD is connected to the drain terminal (or emitter terminal) of the switching transistor TFT. Electrically connected. In addition, the emitter terminal (or drain terminal) of the switching transistor TFT is electrically connected to the data line DL, and the gate terminal of the switching transistor TFT is electrically connected to the gate line DL. do. Meanwhile, a separate capacitor (not shown) may be further formed between the drain terminal (or emitter terminal) and the ground terminal (not shown) of the switching transistor TFT. In this case, the capacitor may also be formed between the drain terminal (or emitter terminal) of the switching transistor TFT and the bias line VL or the data line DL.

The driving principle of the sensing pixel illustrated in FIG. 6 will be briefly described. First, a voltage lower than a voltage formed in the data line DL is applied to the bias line VL to reverse the photodiode PD. Apply voltage. In this state in which the reverse voltage is applied to the photodiode PD, the switching transistor TFT is turned on by applying a gate signal to the gate line GL. At this time, when external light is applied to the photodiode PD, electrons and holes are generated in the photodiode PD, and a current flows, and the current flows through the switching transistor TFT and the data line. The intensity of light applied to the readout part (not shown) through the DL and applied to the photodiode PD may be read.

On the other hand, when the capacitor is formed between the drain terminal (or emitter terminal) and the ground terminal of the switching transistor TFT, external light is applied while the reverse voltage is applied to the photodiode PD. When applied to the photodiode PD, electrons and holes are generated in the photodiode PD to flow current, and as a result, electric charges, ie electrons, are charged in the capacitor. In this case, when the gate signal is applied to the gate line GL to turn on the switching transistor TFT, the charges charged in the capacitor pass through the switching transistor TFT and the data line DL. Can be transmitted to the lead-out unit. As described above, the capacitor not only increases the light sensing time of the photodiode PD but also shortens the application time of the gate signal.

7 is a cross-sectional view illustrating a sensing pixel of the image recognition substrate of FIG. 6.

Referring to FIG. 7, the image recognition substrate 300 illustrated in FIG. 6 includes a transparent base substrate 310, a gate line GL, a first insulating layer 320, a data line DL, and an optical sensor unit LS. ), A second insulating layer 330, a bias line VL, and a light blocking part BP. In this case, the optical sensor part LS may include a switching transistor TFT and a photodiode PD, and the switching transistor TFT may include a gate electrode G, an active pattern A, and a source electrode S. ), The drain electrode D, and the ohmic contact pattern O may be included.

The gate line GL is formed on the transparent base substrate 310, and the gate electrode G is branched to the gate line GL or is a part of the gate line GL. The first insulating layer 320 is formed on the transparent base substrate 310 to cover the gate line GL and the gate electrode G, and the active pattern A is formed on the gate electrode G. It is formed on the first insulating film 320 to overlap. The data line DL is formed on the first insulating layer 320, the source electrode S is branched from the data line DL to extend over a portion of the active pattern A, and the drain The electrode D is formed on the first insulating layer 320 and is formed on another portion of the active pattern A to be spaced apart from the source electrode S. The ohmic contact pattern O is formed between the source electrode A and the active pattern A and between the drain electrode D and the active pattern A to lower the contact resistance.

The photodiode PD may be formed on the first insulating layer 320 or on the drain electrode D to overlap the drain electrode D. FIG. The photodiode PD may have a structure in which an N-type semiconductor part, an I-type semiconductor part, and a P-type semiconductor part are stacked, and an upper transparent electrode may be further formed on the P-type semiconductor part. In addition, a lower transparent electrode (not shown) formed under the N-type semiconductor part and electrically connected to the drain electrode D may be further formed.

The second insulating layer 330 is formed on the first insulating layer 320 to cover the data line DL, the switching transistor TFT, and the photodiode PD. The bias line VL is formed on the second insulating layer 330 and is electrically connected to the upper transparent electrode of the photodiode PD through a bias contact hole formed in the second insulating layer 330. The light blocking part BP is formed on the second insulating layer 330 to cover the switching transistor TFT. In this case, the bias line VL and the light blocking portion BP may be simultaneously formed by the same manufacturing process.

8 and 9 are cross-sectional views illustrating an image recognizer further including the light blocking unit of FIG. 2.

8 and 9, the image recognizer ICD may further include a light blocking unit 500 for covering the paper entry / exit opening 100a of the external case 100.

The light blocking unit 500 covers the paper entry / exit 100a to block external light from being applied into the external case 100 through the paper entry / exit 100a, thereby preventing the external light from entering the image recognition substrate 300. Can be prevented from distorting the image data.

The light blocking unit 500 may have various structures that can cover the paper entrance and exit port 100a. For example, the light blocking unit 500 may be inserted into the paper entry and exit 100a to cover the paper entry and exit 100a as shown in FIG. 8. In addition, the light blocking unit 500 may be coupled to one sidewall of the outer case 100 to cover the paper entrance and exit port 100a, that is, as shown in FIG. 9.

The image recognizer ICD may further include a transparent support plate (not shown) disposed under the target paper 10 to support the target paper 10.

As described above, according to the present exemplary embodiment, the planar light emitted from the surface light source unit 200 is applied to the image recognition substrate 300 after passing through the target paper 10. The sensing speed of the image recognizer (ICD) can be increased by sensing the images formed in the entire area at once.

<Example 2>

10 is a cross-sectional view illustrating an image recognizer according to a second embodiment of the present invention.

Referring to FIG. 10, the image recognizer ICD according to the present embodiment includes an outer case 100, a surface light source unit 200, an image recognition substrate 300, and an image driving board 400.

The outer case 100 may include a storage container unit 110 having an upper storage space, and a moving cover unit 120 connected to one side of the storage container unit 110. In this case, the moving cover part 120 may cover and open the open portion of the storage container part 110 through a rotational movement around a portion connected to one side of the storage container part 110. That is, when the storage container unit 110 is open, the target paper 10 is disposed in the storage container unit 110, and then the target paper 10 is moved using the moving cover unit 120. The cover may block external light from being applied to the target paper. The outer case 100 may further include a transparent support plate 130 disposed under the target paper 10 to support the target paper 10.

The surface light source unit 200 is accommodated in the storage container unit 110 and disposed below the target paper 10. Specifically, the surface light source unit 200 may be disposed under the transparent support plate 130 to provide light to the bottom surface of the target paper 10. Since the surface light source unit 200 is substantially the same as the surface light source unit 200 according to the first embodiment described with reference to FIGS. 1 to 9, other detailed descriptions thereof will be omitted.

The image recognition substrate 300 is disposed above the target paper 10 opposite to the surface light source unit 200 and receives image light transmitted through the target paper 10. The image recognition substrate 300 may be attached on the bottom surface of the moving cover part 120 to move together when the moving cover part 120 rotates. Since the image recognition substrate 300 is substantially the same as the image recognition substrate 300 according to the first embodiment described with reference to FIGS. 1 to 9, other detailed descriptions thereof will be omitted.

The image driving board 400 is accommodated in the storage container unit 110 and disposed below the surface light source unit 200. Since the image driving board 400 is substantially the same as the image driving board 400 according to the first embodiment described with reference to FIGS. 1 to 9, other detailed descriptions thereof will be omitted.

Meanwhile, in FIG. 10, the surface light source unit 200 is disposed below the target paper 10, and the image recognition substrate 300 is attached to the bottom surface of the moving cover part 120. Alternatively, the surface light source unit 200 and the image recognition substrate 300 may be disposed to be interchanged with each other.

As described above, according to the present exemplary embodiment, as the movable cover part 120 covers and opens the open part of the storage container part 110 through rotational movement, the target paper 10 is more easily in the outer case. Can be placed into 100.

<Example 3>

11 is a cross-sectional view illustrating an image recognizer according to a third embodiment of the present invention.

Referring to FIG. 11, the image recognizer ICD according to the present embodiment includes an outer case 100, a surface light source unit 200, an image recognition substrate 300, and an image driving board 400.

The outer case 100 has a storage space for accommodating the surface light source unit 200, the image recognition substrate 300, and the image driving board 400. In addition, the outer case 100 preferably has a structure capable of entering and exiting the target paper 10 therein, for example, on one side wall of the outer case 100 for entering and exiting the target paper 10. Paper entry and exit 100a may be formed. Meanwhile, in the outer case 100, a transparent support plate 130 disposed on the lower surface of the target paper 10 to support the target paper 10 may be further disposed.

The surface light source unit 200 is accommodated in the outer case 100 and disposed under the target paper 10, that is, under the transparent support plate 130, and generates planar light to generate the target paper 10. Provided by Since the surface light source unit 200 is substantially the same as the surface light source unit 200 according to the first embodiment described with reference to FIGS. 1 to 9, other detailed descriptions thereof will be omitted.

The image recognition substrate 300 is disposed between the surface light source unit 200 and the transparent support plate 130, and transmits a portion of the plane light generated by the surface light source unit 200 to the target paper 10 Provided by The image recognition substrate 300 may sense the image of the bottom surface of the target paper 10 by receiving the image light reflected from the bottom surface of the target paper 10 after passing through the image recognition substrate 300. . Detailed description of the image recognition substrate 300 will be described later using a separate drawing.

The image driving board 400 is accommodated in the storage container unit 110 and disposed below the surface light source unit 200. Since the image driving board 400 is substantially the same as the image driving board 400 according to the first embodiment described with reference to FIGS. 1 to 9, other detailed descriptions thereof will be omitted.

12 is a cross-sectional view for describing an operating principle of the image recognizer of FIG. 11.

Referring to FIG. 12, the image recognition substrate 300 includes a plurality of sensing pixels PX arranged in a matrix form in order to sense image light reflected from the lower surface of the target paper 10. Each of the pixels PX is divided into a transmission area AR1 for transmitting a part of plane light applied from the surface light source unit 200 and a light shielding area AR2 for blocking the other of the plane light.

A light shielding pattern layer BL that reflects or absorbs a portion of the plane light applied from the surface light source unit 200 is formed in the light shielding area AR2, and the transmission area AR1 is disposed on the light shielding pattern layer BL. An optical sensor part LS may be formed to sense image light reflected from the bottom surface of the target paper 10 among the light transmitted through the target paper 10. In this case, the light sensor part LS has the light shielding pattern with a smaller area than the light shielding pattern layer BL so that a part of the light transmitted through the transmission area AR1 is not directly applied to the light sensor part LS. It is preferable to arrange in the center of the layer BL.

FIG. 13 is a circuit diagram illustrating an embodiment of a sensing pixel of an image recognition substrate of the image recognizer of FIG. 11.

12 and 13, the image recognition substrate 300 may include a transparent base substrate 310, a light shielding pattern layer BL, a light shielding pattern insulating layer 340, a gate line GL, and a first insulating layer 320. ), A data line DL, an optical sensor unit LS, a second insulating layer 330, a bias line VL, and a light blocking unit BP. In this case, the optical sensor part LS may include a switching transistor TFT and a photodiode PD, and the switching transistor TFT may include a gate electrode G, an active pattern A, and a source electrode S. ), The drain electrode D, and the ohmic contact pattern O may be included.

The light blocking pattern layer BL may be formed on the transparent base substrate 310 to distinguish the transmission area AR1 from the light blocking area AR2. The light blocking pattern insulating layer 340 is formed on the transparent base substrate 310 to cover the light blocking pattern layer BL. The light sensor part LS is formed in the light blocking area AR2 on the light blocking pattern insulating layer 340.

In the present exemplary embodiment, the remaining components except for the light blocking pattern layer BL and the light blocking pattern insulating layer 340 are substantially the same as those described with reference to FIG. do.

Meanwhile, although the other components except for the light blocking pattern layer BL and the light blocking pattern insulating layer 340 are illustrated as having the same structure as in FIG. 7, the structure may be different from that in FIG. 5. In this case, since the node electrode NE illustrated in FIG. 5 may take the role of the light blocking pattern layer BL, the light blocking pattern layer BL and the light blocking pattern insulating layer 340 may be omitted.

As described above, according to the present exemplary embodiment, the planar light generated by the surface light source unit 200 passes through the transmission area AR1 of the image recognition substrate 300 and then is reflected from the bottom surface of the target paper 10. As applied to the optical sensor unit LS, by sensing the front image of the target paper 10 at a time, the recognition speed of the image recognizer ICD may be increased.

<Example 4>

FIG. 14 is a cross-sectional view illustrating an image recognizer according to a fourth exemplary embodiment of the present invention, and FIG. 15 is a cross-sectional view illustrating an operation principle of the image recognizer of FIG. 14.

14 and 15, the image recognizer ICD according to the present embodiment includes an outer case 100, a surface light source unit 200, an image recognition substrate 300, and an image driving board 400. In this case, the image recognizer ICD is substantially the same as the image recognizer ICD according to the first to third embodiments described with reference to FIGS. 1 to 13 except for the image recognizer 300, and thus the image Other contents except those related to the recognition substrate 300 will be omitted.

The image recognition substrate 300 is disposed in the outer case 100, and the first recognition substrate 300a disposed below the target paper 10 and the second disposed above the target paper 10. The recognition substrate 300b may be included.

The first recognition substrate 300a is disposed below the target paper 10, specifically, between the transparent support plate 130 and the surface light source unit 200. The first recognition substrate 300a transmits a portion of the plane light generated by the surface light source unit 200 to the lower surface of the target paper 10, and is reflected from the lower surface of the target paper 10. The first image light may be applied to sense an image of the lower surface of the target paper 10 to generate first image data. Since the first recognition substrate 300a in the present embodiment is substantially the same as the image recognition substrate 300 described with reference to FIGS. 11 to 13, other detailed descriptions thereof will be omitted.

The second recognition substrate 300b is disposed above the target paper 10. The second recognition substrate 300b receives the second image light generated by the surface light source unit 200 and transmitted through the target paper 10 among the light transmitted through the first recognition substrate 300a. Second image data may be generated by sensing images of both surfaces of the target paper 10. Since the second recognition substrate 300b in the present embodiment is substantially the same as the image recognition substrate 300 described with reference to FIGS. 1 to 10, other detailed descriptions thereof will be omitted.

The image driving board 400 may receive the first image data from the first recognition substrate 300a and the second image data from the second recognition substrate 300b. In this case, the first image data has information on the lower surface image of the target paper 10, and the second image data has information on both sides of the target paper 10. Therefore, the image driving board 400 may separate the lower surface image and the upper surface image of the target paper 10 more easily by using the first and second image data.

As described above, according to the present exemplary embodiment, the first recognition substrate 300a receives the light reflected from the lower surface of the target paper 10 to generate the first image data, and the second recognition substrate 300b. As the second image data is generated by receiving the light transmitted through the target paper 10, the image recognizer ICD recognizes images formed on all areas of both surfaces of the target paper 10 at one time. can do.

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 perspective view showing an image recognizer according to a first embodiment of the present invention.

2 and 3 are cross-sectional views taken along the line II ′ of FIG. 1.

4 is a circuit diagram illustrating an embodiment of a sensing pixel of an image recognition substrate of the image recognizer of FIG. 2 or 3.

5 is a cross-sectional view illustrating a sensing pixel of the image recognition substrate of FIG. 4.

6 is a circuit diagram illustrating another embodiment of a sensing pixel of an image recognition substrate of the image recognizer of FIG. 2 or 3.

7 is a cross-sectional view illustrating a sensing pixel of the image recognition substrate of FIG. 6.

8 and 9 are cross-sectional views illustrating an image recognizer further including the light blocking unit of FIG. 2.

10 is a cross-sectional view illustrating an image recognizer according to a second embodiment of the present invention.

11 is a cross-sectional view illustrating an image recognizer according to a third embodiment of the present invention.

12 is a cross-sectional view for describing an operating principle of the image recognizer of FIG. 11.

FIG. 13 is a circuit diagram illustrating an embodiment of a sensing pixel of an image recognition substrate of the image recognizer of FIG. 11.

14 is a cross-sectional view illustrating an image recognizer according to a fourth embodiment of the present invention.

FIG. 15 is a cross-sectional view for describing an operating principle of the image recognizer of FIG. 14.

<Short Description of Main Drawing Numbers>

ICD: Image Recognizer 10: Target Paper

100: outer case 100a: paper entry and exit

110: storage container portion 120: moving cover portion

130: protective transparent plate 200: surface light source unit

300: Image recognition substrate PX: Sensing pixel

SD: Switching Diode PD: Photodiode

BP: Shading part BL: Shading pattern layer

300a: first recognition substrate 300b: second recognition substrate

400: image driving board 500: shading unit

Claims (21)

delete delete An outer case capable of entering and exiting target paper therein; A surface light source unit disposed in the outer case to provide plane light to the target paper; An image recognition substrate disposed in the outer case and receiving image light formed by the plane light provided to the target paper, and sensing image of the target paper at one time to generate image data; And An image driving board which drives the surface light source unit and the image recognition substrate, receives the image data from the image recognition substrate, and transmits the image data to an external system; The image recognition substrate includes a plurality of sensing pixels for sensing the image of the target paper by receiving the image light, Each of the sensing pixels includes a light sensing unit capable of sensing the intensity of the image light, The surface light source unit is disposed to face one surface of the target paper to provide the plane light to one surface of the target paper. And the image recognition substrate is disposed to face the other surface of the target paper, and the image light is sensed by receiving the image light formed by the plane light passing through the target paper and sensing the image of the target paper. The method of claim 3, wherein the image driving board And one side of the surface light source unit or one side of the image recognition substrate. The planar light of claim 3, wherein the planar light generated by the surface light source unit An image recognizer, characterized in that the visible light includes a short wavelength of light that can pass through the target paper. delete delete delete An outer case capable of entering and exiting target paper therein; A surface light source unit disposed in the outer case to provide plane light to the target paper; An image recognition substrate disposed in the outer case and receiving image light formed by the plane light provided to the target paper, and sensing image of the target paper at one time to generate image data; And An image driving board which drives the surface light source unit and the image recognition substrate, receives the image data from the image recognition substrate, and transmits the image data to an external system; The image recognition substrate includes a plurality of sensing pixels for sensing the image of the target paper by receiving the image light, Each of the sensing pixels includes a light sensing unit capable of sensing the intensity of the image light, The light sensing unit A photodiode capable of sensing the image light; And And a switching diode for controlling the driving of the photodiode. The N-side terminal of the photodiode of claim 9, wherein And an N terminal of the switching diode. The method of claim 9, wherein the photodiode and the switching diode are An image recognizer, characterized in that formed by the same manufacturing process at the same time. An outer case capable of entering and exiting target paper therein; A surface light source unit disposed in the outer case to provide plane light to the target paper; An image recognition substrate disposed in the outer case and receiving image light formed by the plane light provided to the target paper, and sensing image of the target paper at one time to generate image data; And An image driving board which drives the surface light source unit and the image recognition substrate, receives the image data from the image recognition substrate, and transmits the image data to an external system; The image recognition substrate includes a plurality of sensing pixels for sensing the image of the target paper by receiving the image light, Each of the sensing pixels includes a light sensing unit capable of sensing the intensity of the image light, The light sensing unit A photodiode capable of sensing the image light; And And a switching transistor for controlling the driving of the photodiode. The N-side terminal of the photodiode of claim 12, wherein And an electrical connection with a drain terminal or an emitter terminal of the switching transistor. delete delete delete An outer case capable of entering and exiting target paper therein; A surface light source unit disposed in the outer case to provide plane light to the target paper; An image recognition substrate disposed in the outer case and receiving image light formed by the plane light provided to the target paper, and sensing image of the target paper at one time to generate image data; And An image driving board which drives the surface light source unit and the image recognition substrate, receives the image data from the image recognition substrate, and transmits the image data to an external system; The outer case is A storage container portion having an upper storage space; And And a moving cover part connected to one side of the storage container part and capable of covering and opening the open portion of the storage container part through rotational movement. delete An outer case capable of entering and exiting target paper therein; A surface light source unit disposed in the outer case to provide plane light to the target paper; An image recognition substrate disposed in the outer case and receiving image light formed by the plane light provided to the target paper, and sensing image of the target paper at one time to generate image data; And An image driving board which drives the surface light source unit and the image recognition substrate, receives the image data from the image recognition substrate, and transmits the image data to an external system; The image recognition substrate Disposed between the target paper and the surface light source unit, transmitting part of the plane light emitted from the surface light source unit to the target paper, and receiving light reflected from the target paper from the transmitted plane light; A first recognition substrate configured to sense an image of one surface of the target paper to generate first image data; And The target paper may be disposed on the opposite side of the first recognition substrate and may receive light transmitted through the target paper from the plane light emitted from the surface light source unit and transmitted through the first recognition substrate. And a second recognition substrate configured to sense images of both sides to generate second image data. 20. The method of claim 19, wherein the first recognition substrate comprises a plurality of sensing pixels each having a light sensing unit for sensing light, Each of the sensing pixels is divided into a transmission area for transmitting a portion of the plane light emitted from the surface light source unit and a light shielding area for blocking the rest of the plane light. And the light sensing unit is formed in the light blocking area. The method of claim 19, wherein the image driving board And receiving the first and second image data from the first and second recognition substrates, respectively, and separating the images formed on both sides of the target paper using the first and second image data. Recognizer.

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