CN210245499U - Display panel and display terminal - Google Patents
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- CN210245499U CN210245499U CN201920738042.3U CN201920738042U CN210245499U CN 210245499 U CN210245499 U CN 210245499U CN 201920738042 U CN201920738042 U CN 201920738042U CN 210245499 U CN210245499 U CN 210245499U
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Abstract
The application provides a display panel, display panel is including being used for displaying the display area of image to corresponding the display area, display panel is provided with a plurality of sub-pixels and a plurality of optical sensor group simultaneously. The plurality of sub-pixels are used for performing image display according to the data signals. The optical sensor groups are used for detecting images of the object to be sensed adjacent to the display panel. Each optical sensor group comprises a plurality of optical sensors, and the plurality of optical sensors in the same optical sensor group are arranged around one sub-pixel. The application also provides a display terminal comprising the display panel.
Description
Technical Field
The embodiment of the application relates to the technical field of image display and optical image sensing, in particular to a display panel and a display terminal.
Background
Along with the promotion of user to image quality and operation convenience demand, all adopt to set up fingerprint sensing part in order to carry out fingerprint sensing under the display screen in the display terminal, but present fingerprint sensing part generally sets up the position of predetermineeing regional under the display screen, because the display screen is used for realizing the unable display image in the predetermined region of fingerprint sensing, for guaranteeing the display quality of display screen, should predetermine regional area size and receive strict limitation, lead to the unable full-screen fingerprint sensing of execution of display screen, bring inconvenience for user's use.
SUMMERY OF THE UTILITY MODEL
In order to solve the foregoing technical problem, the present application provides a display panel and a display terminal, so that all display areas of the display panel can perform fingerprint sensing while displaying an image.
In an embodiment of the present application, a display panel is provided, which includes a display area for displaying an image, and a plurality of sub-pixels and a plurality of optical sensor groups are simultaneously disposed corresponding to the display area. The plurality of sub-pixels are used for performing image display according to the data signals. The optical sensor groups are used for detecting images of the object to be sensed adjacent to the display panel. Each optical sensor group comprises a plurality of optical sensors, and the plurality of optical sensors in the same optical sensor group are arranged around one sub-pixel. Because the optical sensor groups are arranged in the whole display area in a matching way, each position of the display area can execute the image sensing of the object to be detected and reconstruct the image obtained by detection through the corresponding processing circuit, thereby improving the use convenience of users.
In an optional embodiment, the plurality of sub-pixels form a plurality of pixel units arranged in a matrix, each of the pixel units includes a first sub-pixel, a second sub-pixel and a third sub-pixel, and the first sub-pixel, the second sub-pixel and the third sub-pixel emit light rays with different colors respectively. The first sub-pixel emits red light, the second sub-pixel emits green light, the third sub-pixel emits blue light, each pixel unit comprises two first sub-pixels, four second sub-pixels and two third sub-pixel units, the area of each third sub-pixel unit is larger than that of each first sub-pixel, and the area of each first sub-pixel is larger than that of each second sub-pixel. Wherein, at least one sub-pixel is arranged between any two optical sensor groups. Through the arrangement of the sub-pixels with different areas in each pixel unit, the matching degree of the emergent rays of the pixel units and the image data is higher, and the multiple pixel units can obtain higher resolution and contrast for image display in the display area. Meanwhile, at least one sub-pixel is arranged between the optical sensor groups at intervals, so that the wiring difficulty of the optical sensors can be reduced while the image sensing resolution of the object to be detected is ensured.
In an alternative embodiment, the plurality of optical sensors in the same optical sensor group are arranged around a third sub-pixel, and at least one first sub-pixel is arranged between any two optical sensor groups. Or the plurality of optical sensors in the same optical sensor group are arranged around one first sub-pixel, and at least one third sub-pixel is arranged between any two optical sensor groups. Further, two optical sensor groups of any one column or row are spaced at least one pixel unit therebetween. Meanwhile, at least one of the optical sensors in each optical sensor group is electrically connected with the sensing driving circuit, so that the number of connecting lines between the optical sensor group and the driving circuit is less, and the wiring can be simpler and more convenient.
In an alternative embodiment, each optical sensor group includes four optical sensors, the four optical sensors are disposed around the outer side of one of the sub-pixels, the four optical sensors are disposed outside the sub-pixels in a quadrilateral shape, the sub-pixels are located at the central point of the quadrilateral shape, and the quadrilateral shape is a square shape or a rhombus shape. Therefore, when the connecting wires for signal transmission with the driving circuit are arranged in the optical sensor, the plurality of connecting wires have larger wiring space, so that the wiring of the connecting wires is simpler and more convenient.
The area of the optical sensor is smaller than that of the second sub-pixel, so that the optical sensor does not influence the layout of the sub-pixels, the image display effect and the quality of the pixel unit are better, and the image sensing reconstruction of the object to be detected can be better executed.
In an optional embodiment, the display panel includes a first substrate, and the plurality of sub-pixels and the plurality of optical sensor groups are disposed on the same surface of the first substrate, so as to effectively reduce the thickness of the display panel.
In an optional embodiment, the display panel includes a first substrate and a first protection layer, the plurality of sub-pixels are disposed on a same surface of the first substrate, the first protection layer covers and encapsulates the plurality of sub-pixels on the first substrate, and the plurality of optical sensor groups are disposed on a surface of the first protection layer. Because the plurality of sub-pixels in the pixel unit and the plurality of optical sensors in the plurality of optical sensor groups are respectively arranged on the surfaces of the two opposite sides of the first protective layer, light interference and signal interference between the sub-pixels and the plurality of optical sensors can be prevented, and the image display quality and the accuracy of image detection and reconstruction of the object to be sensed are ensured.
In an optional embodiment, when the object to be sensed is a finger, the image is a fingerprint image; when the object to be sensed is a human face, the image is a human face image. Fingerprint sensing and face identification can be realized through the optical sensor in the line image display area, improve user convenience.
An alternative embodiment further provides a display terminal, which includes the display panel. In the display terminal, the plurality of optical sensor groups are arranged in the whole display area in a matching manner, so that the image sensing reconstruction of the object to be detected can be performed at each position of the display area, and the use convenience of a user is improved.
Drawings
FIG. 1 is a schematic plan view illustrating a display panel according to a first embodiment of the present application;
FIG. 2 is an enlarged schematic view of a pixel unit in a region of the display panel shown in FIG. 1;
FIG. 3 is a schematic cross-sectional view of the display panel shown in FIG. 2 along line II-II;
FIG. 4 is an enlarged schematic view of a pixel unit in a region of the display panel shown in FIG. 1 according to a second embodiment of the present application;
FIG. 5 is an enlarged schematic view of a pixel unit in a region of the display panel shown in FIG. 1 according to a third embodiment of the present application;
FIG. 6 is a schematic cross-sectional view of the display panel shown in FIG. 2 along line II-II according to a fourth embodiment of the present application;
fig. 7 is a schematic plan view illustrating a display terminal according to an embodiment of the present application.
Detailed Description
The present application will be described below with reference to specific examples.
Referring to fig. 1, fig. 1 is a schematic plan view illustrating a display panel according to a first embodiment of the present application. As shown in fig. 1, the display panel 100 is configured to perform image display and also accept a touch operation of a user, and when performing the touch operation, the display panel 100 may simultaneously detect a position where the touch operation is received and detect an image of an object F to be detected adjacent to the display panel 100. In this embodiment, the image of the object to be sensed F includes the detection of a finger fingerprint or a palm print and is reconstructed by a processing circuit (not shown) to identify the finger fingerprint adjacent to the display panel 100, and the detection and reconstruction of a human face image to identify the human face image approaching to the touch display panel 100. In this embodiment, the object F to be detected being adjacent to the display panel 100 includes that the object to be detected directly contacts the surface of the display panel 100, or the object F to be detected is within a preset distance from the surface of the display panel 100, for example, the preset distance is 1 millimeter (mm).
The display panel 100 includes a display area AA for performing image display and a non-display area NA disposed at an edge of the display area AA for disposing non-display components.
The display area AA includes a plurality of pixel units P arranged in a matrix, and the plurality of pixel units P cooperate with a driving circuit (not shown) to perform image display according to data signals. In this embodiment, the pixel unit P is an organic light-emitting diode (OLED) pixel, and the number of the matrix of the pixel units P may be 2436 × 1125, so that the resolution is 458Pixels Per Inch (ppi). The pixel unit P includes a plurality of sub-pixels (not shown) emitting light of different colors, and the sub-pixels of different colors cooperate to enable the pixel unit P to emit colored light of different brightness.
In this embodiment, the position of the partial pixel unit P is further provided with an optical sensor group FG, and the optical sensor group FG is used for detecting a finger fingerprint of the touch display panel 100 so as to identify the finger fingerprint of the touch display panel 100, or detecting a face image.
The optical sensor group FG is directly arranged in the display area AA, so that any position of the display area AA can perform fingerprint detection on a finger F approaching or touching the display panel 100 and obtain a corresponding detection signal, and the finger fingerprint image is identified by reconstructing the detection signal through the processing circuit, thereby achieving the purpose of comprehensive screen fingerprint identification. Meanwhile, both fingerprint sensing and face recognition can be performed through the display area AA of the line display panel 100 image, improving user convenience.
Please refer to fig. 2, which is an enlarged schematic diagram of a pixel unit P in a partial area PA of the display panel 100 shown in fig. 1. As shown in fig. 2, each pixel unit P includes a first sub-pixel P1, a second sub-pixel P2, and a third sub-pixel P3, the three sub-pixels P1-P3 respectively emit light rays of three different colors, and the image display units P1-P3 cooperate with each other such that the pixel unit P performs color light emission of 0-255 gray scales to display a color image. In this embodiment, the first sub-pixel P1, the second sub-pixel P2 and the third sub-pixel P3 emit light of three colors, i.e., red, green and blue.
In one embodiment of the present application, each pixel unit P includes two first sub-pixels P1, four second sub-pixels P2, and two third sub-pixels P3. The area of the third sub-pixel P3 is larger than that of the first sub-pixel P1, and the area of the first sub-pixel P1 is larger than that of the second sub-pixel P2. Specifically, the first sub-pixel P1 is square and has a size of 20.5 micrometers (μm) by 20.5 micrometers (μm); the second sub-pixels P2 are square, wherein two of the second sub-pixels P2 have a size of 18.8 μm by 18.8 μm, and the other two of the second sub-pixels P2 have a size of 14.3 by 14.3; the third sub-pixel P3 is square and has a size of 25 μm by 25 μm. And the pitch between each sub-pixel P1-P3 is 19.5 μm.
In each pixel unit P, the arrangement mode of the positions of a plurality of sub-pixels is as follows: the two first sub-pixels P1 and the two second sub-pixels P3 are arranged in a square shape, and the two first sub-pixels P1 and the two second sub-pixels P3 are located on a diagonal line, respectively. Meanwhile, four second sub-pixels P2 are disposed around one of the third sub-pixels P3, the four second sub-pixels P2 are disposed in a square shape, and the third sub-pixel P3 is located at a center point of the square shape formed by the four second sub-pixels P2.
In the corresponding pixel unit P, the photo sensor group FG includes four photo sensors FPS disposed around the FPS at the outer side of the third sub-pixel P3. In this embodiment, the four optical sensors FPS are disposed in a quadrilateral shape, and the third sub-pixel P3 is located at the center point of the quadrilateral shape. The quadrangle formed by the four optical sensors FPS can be a rectangle, a square or an equilateral rhombus.
In the present embodiment, in the display area AA, the number of the optical sensor groups FG is the same as that of the third sub-pixels P3, and thus, the number of the optical sensor groups FG is 2 × 2436 × 1125, that is, one optical sensor group FG is correspondingly disposed around each third sub-pixel P3, and two optical sensor groups FG in any one column or any one row are separated by one first sub-pixel P1.
In other embodiments of the present application, in the corresponding pixel unit P, the optical sensor group FG includes four optical sensors FPS disposed around the FPS at the outer side of the first sub-pixel P1. Correspondingly, in the display area AA, the number of the optical sensor groups FG is the same as that of the first sub-pixels P1, and thus, the number of the optical sensor groups FG is 2 × 2436 × 1125, that is, one optical sensor group FG is correspondingly disposed around each first sub-pixel P1, and two optical sensor groups FG in any row or column are separated by one third sub-pixel P3.
In the present embodiment, the area of the optical sensor FPS is smaller than the area of any one of the sub-pixels in the pixel unit P, and the resolution of the plurality of optical sensors FP disposed in the display area AA is 560Dots Per inc (dpi). Since the area of the optical sensor FPS is small, the layout of the sub-pixels is not affected, that is, the image sensing reconstruction of the object F (fig. 1) to be measured can be preferably performed while the image display effect and quality of the pixel unit P can be ensured to be good.
Further, in the present embodiment, in each of the optical sensor groups FG, at least one of the plurality of optical sensors FPS is electrically connected to a sensing driving circuit (not shown), the driving circuit receives a light detection signal from the optical sensor FPS, where the light detection signal is obtained by converting the sensed light into an electrical signal, and the driving circuit reconstructs the fingerprint image by analyzing the light detection signal. Meanwhile, the four optical sensors FPS in the same optical sensor group FG can be electrically connected to the driving circuit through one of the four optical sensors FPS to transmit the light detection signal, so that the number of connection lines between the optical sensor group FG and the driving sensing circuit (not shown) is minimized, and the layout of the lines can be more convenient. In addition, four optical sensors FPS in each optical sensor group FG are arranged in a quadrilateral shape, and when connecting lines for signal transmission with the driving circuit are arranged, the optical sensors FPS have a larger wiring space between the connecting lines, so that the wiring of the connecting lines is simpler and more convenient. In this embodiment, the driving sensing circuit is electrically connected to each optical sensor group FG through a connection line, so as to drive a sensing signal obtained by detecting a light signal reflected by a finger or a human face by the optical sensor FPS in each optical sensor group FG, and the driving sensing circuit provides the sensing signal to the processing circuit for image reconstruction.
Referring to fig. 3, which is a schematic cross-sectional view of the display panel 100 along the line II-II shown in fig. 2, as shown in fig. 3, the display panel 100 includes a first substrate 101 and a first protective layer 103, a plurality of sub-pixels P1-P3 in a pixel unit P are disposed on the first surface 102 of the first substrate 101, and a plurality of optical sensors FPS in a plurality of sensor groups FG are disposed on the first surface 102 of the first substrate 101. That is, the sub-pixels in the plurality of pixel units P and the optical sensor group FG are disposed in the same layer structure, so as to effectively reduce the thickness of the display panel 100 and meet the requirement of the display panel 100 for light and thin.
The first passivation layer 103 covers and encapsulates the plurality of sub-pixels P1-P3 and the plurality of optical sensors FPS on the first surface 102 of the first substrate 101. In this embodiment, the first protection layer 103 is a Thin-film encapsulation (TFE) made of a transparent organic material or a plastic material. In this embodiment, the object F to be detected is a finger, and when the fingerprint detection is performed, the finger is close to the surface of the first protective layer F, and the plurality of optical sensors FPS in the plurality of optical sensor groups FG obtain corresponding detection signals by detecting light reflected from the finger.
Please refer to fig. 4, which is an enlarged structural diagram of a pixel unit P in a partial area PA of the display panel 100 shown in fig. 1 according to a second embodiment of the present application. As shown in fig. 4, the sub-pixels P1-P3 in the pixel unit P in the present embodiment are arranged in the same manner as the sub-pixels P1-P3 in the pixel unit P in the first embodiment shown in fig. 2, except for the arrangement of the optical sensor group FG.
In the present embodiment, the optical sensor group FG includes four optical sensors FPS disposed around the outside of the third sub-pixel P3. The four optical sensors FPS are disposed in a quadrangle, and the third sub-pixel P3 is located at the center point of the quadrangle. The quadrangle formed by the four optical sensors FPS can be a rectangle, a square or an equilateral rhombus.
In the present embodiment, in the display area AA, the number of the optical sensor groups FG is the same as the number of the pixel units P, and then, the number of the optical sensor groups FG is 2436 × 1125, that is, one optical sensor group FG is correspondingly disposed at the periphery of a part of the third sub-pixel P3, and two optical sensor groups FG in any row are spaced by one first sub-pixel P1, and at the same time, two optical sensor groups FG in any column are spaced by one first sub-pixel P1.
Further, in the present embodiment, the number of the optical sensor groups FG is reduced by half compared to that in the first embodiment, the number of the connection lines between the optical sensor groups FG and the driving circuit is smaller, so that the arrangement of the connection lines can be made simpler.
Please refer to fig. 5, which is an enlarged structure of a pixel unit P in a partial area PA of the display panel 100 shown in fig. 1 according to a third embodiment of the present application. As shown in fig. 5, the sub-pixels P1-P3 in the pixel unit P in the present embodiment are arranged in the same manner as the sub-pixels P1-P3 in the pixel unit P in the first embodiment shown in fig. 2, except for the arrangement of the optical sensor group FG.
In the present embodiment, the optical sensor group FG includes four optical sensors FPS disposed around the outside of the third sub-pixel P3. The four optical sensors FPS are disposed in a quadrangle, and the third sub-pixel P3 is located at the center point of the quadrangle. The quadrangle formed by the four optical sensors FPS can be a rectangle, a square or an equilateral rhombus.
In the present embodiment, in the display area AA, the number of the optical sensor groups FG is half of the number of the pixel units P, and thus, the number of the optical sensor groups FG is 1/2 × 2436 × 1125, that is, one optical sensor group FG is correspondingly disposed around a portion of the third sub-pixel P3, and two optical sensor groups FG in any one row are spaced by one pixel unit P, and at the same time, two optical sensor groups FG in any one column are spaced by one pixel unit P.
Further, the number of the optical sensor groups FG is reduced 1/4 in this embodiment compared to the number of the optical sensor groups FG in the first embodiment, and the number of the connection lines between the optical sensor groups FG and the driving circuit is smaller, so that the arrangement of the connection lines can be made simpler.
Referring to fig. 6, which is a schematic cross-sectional view of the display panel 100 along the line II-II shown in fig. 2 according to a fourth embodiment of the present disclosure, as shown in fig. 6, the display panel 200 includes a first substrate 201 and a first passivation layer 203, a plurality of sub-pixels P1-P3 in a pixel unit P are disposed on a first surface 202 of the first substrate 201, and a plurality of optical sensors FPS are disposed on a second surface 204 of the first passivation layer 203. The second surface 204 is a surface of the first protection layer 203 far from the first substrate 201. Since the sub-pixels P1-P3 of the pixel unit P and the optical sensors FPS of the optical sensor group FG are respectively disposed on the opposite side surfaces of the first protection layer 203, light interference and signal interference between the sub-display units P1-P3 and the optical sensors FPS can be prevented, and the image display quality and the accuracy of image detection and reconstruction of the object to be sensed can be ensured.
The first passivation layer 203 covers and encapsulates the plurality of sub-pixels P1-P3 on the first surface 202 of the first substrate 101. In this embodiment, the first protection layer 203 is a transparent organic material or a plastic material to implement the thin film encapsulation layer TFE.
Referring to fig. 7, which is a schematic plan view illustrating a display terminal 10 according to an embodiment of the present disclosure, the display terminal 10 includes a display panel 100 and other auxiliary components, where the other auxiliary components include a sound sensing element (not labeled) or other sensing elements (not labeled) disposed corresponding to a non-display area NA, a housing (not labeled), a circuit module (not labeled), and the like.
The foregoing is a preferred embodiment of the present application and it should be noted that modifications and embellishments could be made by those skilled in the art without departing from the principle of the present application and these are considered to be within the scope of the present application.
Claims (15)
1. A display panel including a display area for displaying an image, the display panel comprising, in correspondence with the display area:
a plurality of sub-pixels for performing image display according to the data signal;
the display panel comprises a plurality of optical sensor groups, wherein the optical sensor groups are used for detecting images of objects to be sensed adjacent to the display panel, each optical sensor group comprises a plurality of optical sensors, and the optical sensors in the same optical sensor group are arranged around one sub-pixel.
2. The display panel of claim 1, wherein the plurality of sub-pixels form a plurality of pixel units arranged in a matrix, each of the pixel units includes a first sub-pixel, a second sub-pixel and a third sub-pixel, the first sub-pixel, the second sub-pixel and the third sub-pixel emit light beams of different colors, and at least one sub-pixel is spaced between any two optical sensor groups.
3. The display panel according to claim 2, wherein the first sub-pixel emits red light, the second sub-pixel emits green light, and the third sub-pixel emits blue light, two of the first sub-pixel, four of the second sub-pixel, and two of the third sub-pixel are included in each pixel unit, and the area of the third sub-pixel unit is larger than that of the first sub-pixel, and the area of the first sub-pixel is larger than that of the second sub-pixel.
4. The display panel of claim 3, wherein the plurality of optical sensors in the same optical sensor group are arranged around a third sub-pixel, and at least one first sub-pixel is arranged between any two optical sensor groups.
5. The display panel of claim 3, wherein the plurality of optical sensors in the same optical sensor group are arranged around a first sub-pixel, and at least one third sub-pixel is arranged between any two optical sensor groups.
6. The display panel according to claim 4 or 5, wherein two optical sensor groups of any one column or row are separated by at least one pixel unit.
7. The display panel of claim 3, wherein at least one of the plurality of optical sensors in each of the optical sensor groups is electrically connected to a sensing driving circuit.
8. The display panel of claim 7, wherein each of the optical sensor groups comprises four optical sensors, and the four optical sensors are disposed around the outer side of one of the sub-pixels.
9. The display panel of claim 8, wherein the four optical sensors are disposed outside the sub-pixels in a quadrilateral shape, and the sub-pixels are located at center points of the quadrilateral shape.
10. The display panel according to claim 9, wherein the quadrangle is a square or a rhombus.
11. The display panel according to claim 10, wherein an area of the optical sensor is smaller than an area of the second subpixel.
12. The display panel according to claim 1, wherein the display panel comprises a first substrate, and the plurality of sub-pixels and the plurality of optical sensor groups are disposed on the same surface of the first substrate.
13. The display panel of claim 1, wherein the display panel comprises a first substrate and a first protection layer, the plurality of sub-pixels are disposed on a same surface of the first substrate, the first protection layer covers and encapsulates the plurality of sub-pixels on the first substrate, and the plurality of optical sensor groups in the plurality of optical sensor groups are disposed on a surface of the first protection layer.
14. The display panel according to claim 1, wherein when the object to be sensed is a finger, the image is a fingerprint image; when the object to be sensed is a human face, the image is a human face image.
15. A display terminal characterized by comprising the display panel of any one of claims 1 to 14.
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| CN201920738042.3U CN210245499U (en) | 2019-05-21 | 2019-05-21 | Display panel and display terminal |
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| CN201920738042.3U CN210245499U (en) | 2019-05-21 | 2019-05-21 | Display panel and display terminal |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022188072A1 (en) * | 2021-03-10 | 2022-09-15 | 京东方科技集团股份有限公司 | Array substrate, light-emitting substrate and display apparatus |
| EP4163770A1 (en) * | 2021-10-07 | 2023-04-12 | Samsung Display Co., Ltd. | Display device |
| WO2023141750A1 (en) * | 2022-01-25 | 2023-08-03 | 京东方科技集团股份有限公司 | Display panel and manufacturing method therefor, and display apparatus |
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2019
- 2019-05-21 CN CN201920738042.3U patent/CN210245499U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022188072A1 (en) * | 2021-03-10 | 2022-09-15 | 京东方科技集团股份有限公司 | Array substrate, light-emitting substrate and display apparatus |
| EP4163770A1 (en) * | 2021-10-07 | 2023-04-12 | Samsung Display Co., Ltd. | Display device |
| WO2023141750A1 (en) * | 2022-01-25 | 2023-08-03 | 京东方科技集团股份有限公司 | Display panel and manufacturing method therefor, and display apparatus |
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