KR20160056388A - Array substrate having photo sensor and display device using the same - Google Patents

Abstract

The present invention relates to an array substrate having a photo sensor which includes a high resolution image sensor, thereby implementing fingerprint recognition, and to a display device using the same. An array substrate for a display device according to the present invention comprises: unit pixels each of which includes first to third color pixels and a sensor pixel; a first data line which is connected to the first color pixel and the sensor pixel; a second data line which is connected to the second color pixel; a third data line which is connected to the third color pixel; and a read-out line which is connected to the sensor pixel and is disposed in a layer identical to that of the first to third data lines. The first to third color pixels and the sensor pixel may be disposed in a quad-type arrangement. In this case, the quad-type arrangement is a structure in which sub-pixels included in each of the unit pixels are disposed in regions, respectively, defined by two rows and two columns.

Description

TECHNICAL FIELD [0001] The present invention relates to an array substrate having a photoelectric sensor and a display device using the array substrate.

The present invention relates to an array substrate having a photosensor capable of realizing fingerprint recognition by incorporating a high-resolution image sensor and a display device using the array substrate.

In recent years, various functions have been added to a display device in addition to a function of displaying an image, and as a part thereof, researches on a display device capable of implementing a fingerprint recognition function have been actively conducted.

Generally, a display device having a fingerprint recognition function recognizes a fingerprint by an optical sensing method or a capacitive method. For example, a liquid crystal display device that recognizes a fingerprint by an optical sensing method includes a photo sensor as a fingerprint sensor. The photo sensor senses light reflected by a finger and is emitted from a backlight unit to recognize a fingerprint. In this connection, the applicant has proposed a technique that can provide both a display function and an image input function by providing a substrate in which sensor pixels for sensing light are incorporated in Korean Patent Laid-Open Publication No. 10-2007-0029853 (hereinafter referred to as prior art) I have designed it.

1 is a schematic plan view of a substrate having a photosensor built therein, which is known from the prior art.

Referring to FIG. 1, a plurality of gate lines GL and data lines DL intersecting the plurality of gate lines GL are disposed on the substrate. A pixel region is defined at the intersection of the gate line GL and the data line DL and a red pixel R, a green pixel G and a blue pixel B are arranged in the pixel region according to the color to be displayed And the sensor pixel 10 is disposed on one side of each of the red pixel R, the green pixel G and the blue pixel B. The photosensor 10 is connected to a sensor drive line DRL, a bias line BL, and a lead-out line RL.

However, if each unit pixel includes three sensor pixels 10 as shown in Fig. 1, the sensor drive line DRL, the bias line BL, and the lead-out line The number of RLs increases and the aperture ratio decreases. Therefore, the substrate disclosed in the above prior art is difficult to apply to a high-resolution model. Accordingly, the photosensors 10 shown in FIG. 1 have a maximum resolution of 100 PPI (pixels per inch), and thus it is difficult to satisfy the resolution condition (300 PPI or more) for fingerprint recognition.

As shown in FIG. 1, even if a structure having three sensor pixels 10 is applied to each unit pixel to implement a high-resolution model, the area of each sensor pixel 10 becomes too small, I can not sense it exactly. This is because the area of the sensing capacitor temporarily storing the sensed data value formed in each sensor pixel 10 is too small to allow the sensing capacitor to function.

On the other hand, as shown in Fig. 2, a method of mounting the fingerprint recognition device 20 on the non-display area of the display device is used because of the above-mentioned problem. However, the above method is costly, and recent display devices have a tendency to reduce the area of the non-display area, and there is a disadvantage that the space restriction for disposing the external fingerprint recognition device increases.

An object of the present invention is to provide an array substrate having a photosensor capable of realizing fingerprint recognition by incorporating a high-resolution image sensor and a display device using the array substrate.

Other features and advantages of the invention will be set forth in the description which follows, or may be obvious to those skilled in the art from the description and the claims.

According to an aspect of the present invention, there is provided an array substrate of a display device, including: a first pixel electrode including first to third color pixels and a sensor pixel; A second data line connected to the second color pixel, a third data line connected to the third color pixel, and a lead-out line connected to the sensor pixel, wherein the first through third color pixels, And the sensor pixels are arranged in a quad type, and the first to third data lines and the lead-out lines may be formed in the same layer.

According to another aspect of the present invention, there is provided an array substrate of a display device, the array substrate comprising first, second, and third color pixels and a sensor pixel disposed on one side of the first through third color pixels, A first data line connected to the first color pixel, a second data line connected to the second color pixel and the sensor pixel, a third data line connected to the third color pixel, And the second data line extends to one side so as not to overlap with the sensor pixel to bypass the sensor pixel, and the lead-out line extends to the other side so as not to overlap with the sensor pixel, You can bypass.

According to the solution of the above-mentioned problems, the present invention has the following effects.

The present invention can broaden the area of sensor pixels and is suitable for a high-resolution model and satisfies the resolution condition (300 PPI or more) for fingerprint recognition. That is, when designing a sensor pixel, the present invention can secure a sufficient area of the sensing capacitor formed in the sensor pixel. This means that even when a high-resolution model is applied, the sensing capacitor can secure a sufficient capacitance to accurately store the sensed photocurrent, which means that the sensor pixel can be designed with a resolution condition (300 PPI or more) for fingerprint recognition .

Further, according to the present invention, the number of lead-out lines can be reduced, and the aperture ratio can be improved by eliminating the sensor drive line of the prior art and providing one sensor pixel per unit pixel.

In addition to the effects of the present invention mentioned above, other features and advantages of the present invention will be described below, or may be apparent to those skilled in the art from the description and the description.

1 is a schematic plan view of a substrate having a photosensor built therein, which is known from the prior art.
2 is a perspective view schematically showing a display device having an external fingerprint recognition device.
3A and 3B are schematic cross-sectional views of a display device having a substrate according to an embodiment of the present invention.
4 is a schematic plan view of a substrate for a display device according to the first embodiment of the present invention.
5 is a circuit diagram showing one unit pixel shown in FIG.
6 is a cross-sectional view of the substrate taken along the line AA 'shown in FIG.
7 is a schematic plan view of a substrate for a display device according to a second embodiment of the present invention.
8 is a circuit diagram showing one unit pixel shown in FIG.
9 is a schematic plan view of a substrate according to a comparative example.

The meaning of the terms described herein should be understood as follows. The word " first, "" second," and the like, used to distinguish one element from another, are to be understood to include plural representations unless the context clearly dictates otherwise. The scope of the right should not be limited by these terms. It should be understood that the terms "comprises" or "having" does not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, or combinations thereof. It should be understood that the term "at least one" includes all possible combinations from one or more related items. For example, the meaning of "at least one of the first item, the second item and the third item" means not only the first item, the second item or the third item, but also the second item and the second item among the first item, Means any combination of items that can be presented from more than one. The term "on" means not only when a configuration is formed directly on top of another configuration, but also when a third configuration is interposed between these configurations.

Hereinafter, preferred embodiments of an array substrate having a photosensor according to the present invention and a display device using the array substrate will be described in detail with reference to the accompanying drawings.

3A and 3B are schematic cross-sectional views of a display device having a substrate according to an embodiment of the present invention.

Referring to FIG. 3A, a display device according to an embodiment of the present invention may be a liquid crystal display device. The liquid crystal display of the present invention includes a liquid crystal panel 110 in which an upper substrate 130 and a lower substrate 120 are attached to each other and a backlight unit 140 arranged to overlap the liquid crystal panel 110 .

The upper substrate 130 includes a color filter array. The lower substrate 120 includes a thin film transistor array. In particular, in the liquid crystal display of the present invention, the sensor pixel 100 is provided in the lower substrate 120, and the sensor pixel 100 senses the light emitted from the backlight unit 140 and reflected by the finger, Lt; / RTI >

Referring to FIG. 3B, the display device according to another embodiment of the present invention may be an organic light emitting diode display device. The organic light emitting diode display of the present invention includes a substrate 150 having a red pixel R, a green pixel G and a blue pixel B and a sealing substrate 160 covering the substrate 150 .

In particular, the organic light emitting diode display of the present invention includes a sensor pixel 100 in the substrate 150, and the sensor pixel 100 includes a red pixel R, a green pixel G, and a blue pixel B And recognizes the fingerprint by sensing the light reflected by the finger.

As described above, the display device of the present invention can be a liquid crystal display device or an organic light emitting diode display device. Hereinafter, a liquid crystal display will be mainly described for convenience of explanation. However, it should be noted that the features of the present invention are not limited to liquid crystal display devices.

4 is a schematic plan view of a substrate for a display device according to the first embodiment of the present invention. 5 is a circuit diagram showing one unit pixel shown in FIG.

4, the substrate for a display device according to the first embodiment of the present invention includes a plurality of gate lines GL, a plurality of data lines DL, a plurality of lead-out lines RL, (BL). Here, the gate line GL and the bias line BL are arranged in a first direction, and the data line DL and the lead-out line RL are arranged in a second direction crossing the first direction .

The substrate of the present invention defines a plurality of pixel regions by intersecting the lines arranged in the first direction and the lines arranged in the second direction. In each of the plurality of pixel regions, a pixel for displaying an image or a sensor pixel 100 for sensing a fingerprint or an image is disposed.

The pixels formed in each of the plurality of pixel regions are divided into first through third color pixels R, G, and B, and a sensor pixel 100. Here, the first color pixel R may be a red pixel, the second color pixel G may be a green pixel, and the third color pixel B may be a blue pixel.

The first to third color pixels R, G and B and the sensor pixel 100 constitute a unit pixel UP. That is, each of the unit pixels UP formed on the substrate of the present invention includes the first through third color pixels R, G, and B and the sensor pixel 100.

4 and 5, in the unit pixel UP, the first color pixel R is arranged in a first row and a first column, and the second color pixel G is arranged in a first row and a second column, The third color pixel (B) is disposed in a second row and the second column, and the sensor pixel (100) is disposed in the second row and the first column.

The data line DL is divided into first to third data lines DL1 to DL3. Specifically, the first data line DL1 is connected to the first color pixel R and the sensor pixel 100. [ And the second data line DL2 is connected to the second color pixel G. [ And the third data line DL3 is connected to the third color pixel B. A lead-out line RL in parallel with the first to third data lines DL1 to DL3 is connected to the sensor pixel 100. [

The gate line GL is disposed so as to intersect the first to third data lines DL1 to DL3 and the lead out line RL so that the first to third color pixels R, And the sensor pixel 100, respectively. The bias line (BL) arranged in parallel to the gate line (GL) is connected to the sensor pixel (100).

Particularly, the present invention places two lines parallel to the pixel columns between the first through third color pixels (R, G, B) and the pixel columns in which the sensor pixels 100 are selectively arranged. In the present invention, by arranging two lines between the pixel columns, the deviation of the aperture ratio can be reduced and the image quality is improved. Here, the line parallel to the pixel column is the data line DL or the lead-out line RL. That is, the present invention places two selected ones of the first to third data lines DL1 to DL3 and the lead-out line RL between the pixel columns.

Further, the present invention places one line in parallel with the pixel row between pixel rows in which the first to third color pixels (R, G, B) and sensor pixels 100 are selectively arranged. In the present invention, since one line is arranged between the pixel rows, the variation of the aperture ratio can be reduced and the image quality is improved. Here, the line parallel to the pixel row is the gate line GL or the bias line BL. That is, the present invention disposes a selected one of the gate line GL and the bias line BL between the pixel rows.

The structure of the lines connected to the unit pixels UP will be described in more detail as follows.

The lead-out line RL is disposed on one side of the first color pixel R and the sensor pixel 100. The first data line DL1 is disposed on the other side of the first color pixel R and the sensor pixel 100. The second data line DL2 is disposed on one side of the second and third color pixels B adjacent to the first data line DL1. And the third data line DL3 is disposed on the other side of the second and third color pixels B.

The gate line GL is disposed on one side of the third color pixel B and the sensor pixel 100 adjacent to the first and second color pixels G. [ The bias line BL is disposed on the other side of the third color pixel B and the sensor pixel 100.

5, each of the first through third color pixels R, G, and B includes a driving TFT DT, a liquid crystal capacitor Clc, and a storage capacitor Cst. The driving TFT DT includes a gate electrode G connected to a gate line GL and a first electrode S connected to a selected one of the first to third data lines DL1 to DL3, And a second electrode (D) connected to the second electrode (PE). Each of the liquid crystal capacitor Clc and the storage capacitor Cst is connected to the pixel electrode PE and the common electrode CE.

In addition, the sensor pixel 100 includes first and second TFTs T1 and T2, and a sensing capacitor SC.

The first TFT T1 includes a gate electrode G connected to the bias line BL, a first electrode S connected to the first data line DL1 and a second electrode connected to the sensing node SN And a second electrode (D). The first TFT T1 supplies a photocurrent to the sensing node SN according to the amount of received light. Unlike the prior art shown in FIG. 1, the present invention eliminates the sensor drive line. Instead, the present invention drives the data line DL in a time division manner into a sensing period and a display period, and the sensor pixel 100 is supplied with the driving voltage through the data line DL in the sensing period.

The sensing capacitor SC is connected to the sensing node SN and the bias line BL, respectively. This sensing capacitor SC stores the photocurrent supplied from the first TFT < RTI ID = 0.0 > T1. ≪ / RTI >

The second TFT T2 includes a gate electrode G connected to the gate line GL, a first electrode S connected to the sensing node SN and a second electrode S connected to the lead- And a second electrode (D). The second TFT T2 supplies the voltage of the sensing node SN to the lead-out line RL.

The substrate according to the first embodiment of the present invention described above can broaden the area of the sensor pixel 100 compared with the conventional technology shown in FIG. 1, and is suitable for a high-resolution model. The resolution condition for fingerprint recognition (300 PPI ) Can be satisfied. More specifically, the present invention includes one sensor pixel 100 for each unit pixel UP, whereas the prior art shown in FIG. 1 has three sensor pixels 100 for each unit pixel UP The area of the sensor pixel 100 is widened. Therefore, the present invention can ensure a sufficient area of the sensing capacitor SC formed in the sensor pixel 100 at the time of designing the sensor pixel 100. This means that even when a high-resolution model is applied, the sensing capacitor SC can secure a sufficient electrostatic capacity to store the photocurrent sensed from the first TFT (T1), and the sensor pixel 100 can be stored under the resolution condition for fingerprint recognition 300 PPI or more) can be designed.

In the first embodiment of the present invention, the number of the lead-out lines RL is reduced by eliminating the sensor driving lines of the related art and having one sensor pixel 100 per unit pixel UP, .

Hereinafter, a cross-sectional structure of the substrate for a display device according to the first embodiment will be described.

6 is a cross-sectional view of the substrate taken along the line A-A 'shown in FIG. 6 is a cross-sectional view of the third color pixel B and the sensor pixel 100 shown in Fig. 4. As shown in Fig.

First, a gate line GL is formed on a substrate 200. A gate electrode G of the driving TFT DT provided in each of the first to third color pixels R, G and B is formed in the same layer as the gate line GL, The storage electrode SE constituting the pixel electrode SC and the gate electrode G of each of the first and second TFTs T1 and T2 provided in the sensor pixel 100 are formed.

A gate insulating layer 210 is formed on the gate electrodes GL formed on the same layer as the gate line GL and the gate line GL and on the gate insulating layer 210, The semiconductor layer ACT of the driving TFT DT provided in each of the color pixels R, G and B and the semiconductor layer ACT of each of the first and second TFTs T1 and T2 provided in the sensor pixel 100 ACT) is formed.

Data lines DL are formed on a substrate including the semiconductor layers (ACTs). The first and second electrodes S and D (source and drain) of the driving TFT DT provided in each of the first to third color pixels R, G and B are formed in the same layer as the data lines DL. The first and second electrodes S and D of the first and second TFTs T1 and T2 provided in the sensor pixel 100 and the first and second TFTs T1 and T2 are connected to each other and a connection line LL overlapping the storage electrode SE of the sensor pixel 100 is formed. An ohmic contact layer OC may be formed between the semiconductor layers ACT and the first and second electrodes S and D of the TFTs.

A first passivation layer 220 is formed on the electrodes and lines formed on the same layer as the data lines DL and the data lines DL. The pixel electrode PE connected to the second electrode D of the driving TFT DT provided in each of the pixels R, G, and B is formed.

A second passivation layer 230 is formed on the substrate 200 including the pixel electrode PE and a common electrode 210 overlapped with the pixel electrode PE is formed on the substrate 200 including the second passivation layer 230. [ (CE) is formed.

7 is a schematic plan view of a substrate for a display device according to a second embodiment of the present invention. FIG. 8 is a circuit diagram showing one unit pixel UP shown in FIG.

7, the substrate for a display according to the second embodiment includes a plurality of gate lines GL, a plurality of data lines DL, a plurality of lead-out lines RL, and a plurality of bias lines BL, Respectively. Here, the gate line GL and the bias line BL are arranged in a first direction, and the data line DL and the lead-out line RL are arranged to intersect the gate line GL .

However, in the second embodiment, the first and third data lines DL3 and DL3 have the same shape, and the second data line DL2 and the lead-out line RL have the same shape in the region adjacent to the sensor pixel 100, And has a different form from the data line DL1. This is because the second data line DL2 and the lead-out line RL bypass the region where the sensor pixel 100 is formed, and the reason for this will be described later in detail with reference to Figs. 6 and 9. Fig.

The substrate according to the second embodiment includes the first through third color pixels R, G and B and the sensor pixel 100 as in the first embodiment. However, the substrate according to the second embodiment differs from the first embodiment in that the first to third color pixels R, G and B are arranged in a stripe shape and the first to third color pixels R, G and B A single sensor pixel 100 is disposed on one side of the sensor pixel.

The gate line GL is disposed on one side of the sensor pixel 100 so as to intersect the first to third data lines DL1 to DL3 and the lead-out line RL. Here, one side of the sensor pixel 100 is a portion adjacent to the first through third color pixels R, G, and B.

The bias line BL is disposed on the other side of the sensor pixel 100 and is connected to the sensor pixel 100.

The data line DL intersects the gate line GL and is divided into first to third data lines DL1 to DL3. Specifically, the first data line DL1 is connected to the first color pixel R. The second data line DL2 is connected to the second color pixel G and the sensor pixel 100. And the third data line DL3 is connected to the third color pixel B. The lead-out line RL is connected to the sensor pixel 100. The first to third data lines DL1 to DL3 and the lead-out line RL are connected to the first data line DL1, the second data line DL2, the lead-out line RL, Line DL3.

Referring to FIG. 8, each of the first through third color pixels R, G, and B includes a driving TFT DT, a liquid crystal capacitor Clc, and a storage capacitor Cst. The driving TFT DT includes a gate electrode G connected to a gate line GL and a first electrode S connected to a selected one of the first to third data lines DL1 to DL3, And a second electrode (D) connected to the second electrode (PE). Each of the liquid crystal capacitor Clc and the storage capacitor Cst is connected to the pixel electrode PE and the common electrode CE.

In addition, the sensor pixel 100 includes first and second TFTs T1 and T2, and a sensing capacitor SC.

The first TFT T1 includes a gate electrode G connected to the bias line BL, a first electrode S connected to the second data line DL2 and a second electrode connected to the sensing node SN And a second electrode (D). The first TFT T1 supplies a photocurrent to the sensing node SN according to the amount of received light. That is, the sensor pixel 100 according to the second embodiment is different from the first embodiment in that the first TFT T1 is connected to the second data line DL2.

The sensing capacitor SC is connected to the sensing node SN and the bias line BL, respectively. This sensing capacitor SC stores the photocurrent supplied from the first TFT < RTI ID = 0.0 > T1. ≪ / RTI >

The first TFT T2 includes a gate electrode G connected to the gate line GL, a first electrode S connected to the sensing node SN, and a second electrode S connected to the lead- And a second electrode (D). The first TFT T2 supplies the voltage of the sensing node SN to the lead-out line RL.

As described above, the substrate according to the second embodiment of the present invention can broaden the area of the sensor pixel 100 as in the first embodiment and is suitable for a high-resolution model and satisfies the resolution condition (300 PPI or more) for fingerprint recognition . Also, the number of the lead-out lines RL can be reduced by disposing the sensor driving lines of the prior art and providing one sensor pixel 100 per unit pixel UP, so that the aperture ratio can be improved.

The second and third data lines DL3 and DL3 have the same shape and the second data line DL2 and the lead-out line RL have the same shape as the sensor pixel 100. In the substrate according to the second embodiment of the present invention, And the first data line DL1 in the region adjacent to the first data line DL1. Specifically, the second data line DL2 is bent in a direction adjacent to the first data line DL1 in a region adjacent to the sensor pixel 100 to bypass the sensor pixel 100, (RL) is bent in a direction adjacent to the third data line (DL3) in a region adjacent to the sensor pixel (100) to bypass the sensor pixel (100).

The reason why the second data line DL2 and the lead-out line RL bypass the sensor pixel 100 is as follows.

As described above, in the substrate according to the second embodiment of the present invention, the first through third color pixels R, G, and B are arranged in a stripe shape, and the first through third color pixels R, G, A single sensor pixel 100 is disposed on one side of the sensor pixel. 9, the data lines DL are arranged in a straight line in a direction perpendicular to the gate lines GL on one side of each of the first to third color pixels R, G and B, Some of the data lines DL pass through the area where the sensor pixels 100 are arranged. Namely, as shown in Fig. 9, the second data line DL2 arranged between the first and second color pixels G and the third data line DL2 arranged between the second and third color pixels B The line DL3 passes through the area where the sensor pixel 100 is arranged.

6, the sensor capacitor 100 is provided with a storage electrode SE formed on the same layer as the gate line GL and a storage electrode SE formed on the same layer as the data line DL And a connection line LL formed in the layer. Therefore, it is impossible for the second and third data lines DL2 and DL3 to cross the sensor pixel 100 in a straight line. Accordingly, in order to cause the second and third data lines DL2 and DL3 to intersect the sensor pixel 100 in a straight line like the 'K' portion of FIG. 9, A separate line provided in the layer should be provided, and the data lines DL should be connected to the separate line. However, the above method is disadvantageous in that the manufacturing cost is increased due to the complicated structure of the substrate, the power consumption of the data driver is increased due to an increase in the load of the data line DL, 0.0 > 100). ≪ / RTI >

8, the third data line DL3 is disposed between the second and third color pixels G and B instead of the lead out line RL, and the third data line DL3 Can have the same shape as the lead-out line RL in Fig. However, preferably, as shown in Fig. 8, a lead out line RL is disposed between the second and third color pixels G and B. The reason for this is to prevent the signal of the lead-out line RL from being distorted due to the interference of the data line DL by distancing the distance between the lead-out line RL and the data line DL. That is, when the third data line DL3 is disposed instead of the lead-out line RL between the second and third color pixels G and B, the lead-out line RL is connected to the neighboring unit pixel UP Are arranged in parallel with the first data line DL1 connected thereto, and can receive the interference of the first data line DL1. Therefore, the structure shown in Fig. 8 is more preferable.

As described above, according to the present invention, the area of the sensor pixel 100 can be widened, which is suitable for a high-resolution model and satisfies the resolution condition (300 PPI or more) for fingerprint recognition. That is, when designing the sensor pixel 100, a sufficient area of the sensing capacitor SC formed in the sensor pixel 100 can be ensured. This means that the sensing capacitor SC can secure a sufficient capacitance to accurately store the sensed photocurrent even when a high-resolution model is applied. The sensor pixel 100 is designed to have a resolution condition (300 PPI or more) for fingerprint recognition It can be done.

Further, according to the present invention, the number of the lead-out lines RL can be reduced, and the aperture ratio can be improved by eliminating the sensor drive line of the prior art and providing one sensor pixel 100 per unit pixel UP.

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit or scope of the general inventive concept as defined by the appended claims and their equivalents. Will be clear to those who have knowledge of. Therefore, the scope of the present invention is defined by the appended claims, and all changes or modifications derived from the meaning and scope of the claims and their equivalents should be interpreted as being included in the scope of the present invention.

UP: unit pixel BL: bias line
R: first color pixel G: second color pixel
B: third color pixel 100: sensor pixel

Claims (12)

First to third color pixels, and a sensor pixel;
A first data line connected to the first color pixel and the sensor pixel;
A second data line connected to the second color pixel;
A third data line connected to the third color pixel; And
And a lead neighboring line connected to the sensor pixel and located on the same layer as the first to third data lines,
Wherein the first to third color pixels and the sensor pixels are arranged in a quad type. The method according to claim 1,
Within the unit pixel,
Wherein the first color pixel is disposed in a first row and a first column,
The second color pixel is disposed in the first row and the second column,
The third color pixel is disposed in a second row and the second column,
Wherein the sensor pixels are disposed in the second row and the first column. 3. The method of claim 2,
First to third color pixels, and gate lines commonly connected to the sensor pixels, the gate lines being arranged to intersect the first to third data lines and the lead-out line; And
Further comprising a bias line disposed in parallel with the gate line and connected to the sensor pixel. The method of claim 3,
Wherein the lead-out line is disposed on one side of the first color pixel and the sensor pixel,
The first data line is disposed on the other side of the first color pixel and the sensor pixel,
The second data line is disposed on one side of the second and third color pixels adjacent to the first data line,
And the third data line is disposed on the other side of the second and third color pixels. The method of claim 3,
The gate line
The third color pixel adjacent to the first and second color pixels, and the second color pixel disposed on one side of the sensor pixel,
And the bias line is disposed on the other side of the third color pixel and the sensor pixel. The method of claim 3,
The sensor pixel
A first electrode connected to the bias line, a first electrode connected to the first data line, and a second electrode connected to the sensing node, the first switching circuit supplying a photocurrent corresponding to the received light amount to the sensing node, device;
A sensing capacitor connected to the sensing node and the bias line, respectively; And
And a second switching element including a gate electrode connected to the gate line, a first electrode connected to the sensing node, and a second electrode connected to the lead-out line. A unit pixel including first to third color pixels and sensor pixels disposed on one side of the first to third color pixels;
A first data line connected to the first color pixel;
A second data line connected to the second color pixel and the sensor pixel;
A third data line connected to the third color pixel; And
A lead-out line connected to the sensor pixel;
The second data line extends to one side so as not to overlap the sensor pixel to bypass the sensor pixel;
Wherein the lead-out line extends to the other side so as not to overlap with the sensor pixel to bypass the sensor pixel. 8. The method of claim 7,
The first to third data lines and the lead-out line
Wherein the first data line, the second data line, the lead-out line, and the third data line are arranged in the order of the first data line, the second data line, the lead-out line, and the third data line. 8. The method of claim 7,
A gate line intersecting the first to third data lines and the lead-out line and disposed at one side of the sensor pixel so as to be adjacent to the first to third color pixels; And
And a bias line disposed on the other side of the sensor pixel. 8. The method of claim 7,
The sensor pixel
A first electrode connected to the bias line, a first electrode connected to the second data line, and a second electrode connected to the sensing node, for supplying a photocurrent corresponding to the sensed amount of light to the sensing node, device;
A sensing capacitor connected to the sensing node and the bias line, respectively; And
And a second switching element including a gate electrode connected to the gate line, a first electrode connected to the sensing node, and a second electrode connected to the lead-out line. The organic light emitting diode display as claimed in any one of claims 1 to 10, wherein each of the first to third color pixels includes an organic light emitting layer. An array substrate of the display device according to any one of claims 1 to 10; And a backlight unit.

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