CN115000204A - Photoelectric detection device and display device - Google Patents
Photoelectric detection device and display device Download PDFInfo
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- CN115000204A CN115000204A CN202210577652.6A CN202210577652A CN115000204A CN 115000204 A CN115000204 A CN 115000204A CN 202210577652 A CN202210577652 A CN 202210577652A CN 115000204 A CN115000204 A CN 115000204A
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- 238000001514 detection method Methods 0.000 title claims abstract description 57
- 239000000758 substrate Substances 0.000 claims abstract description 21
- 239000000463 material Substances 0.000 claims description 24
- 238000005538 encapsulation Methods 0.000 claims description 16
- 239000011159 matrix material Substances 0.000 claims description 16
- 238000004806 packaging method and process Methods 0.000 claims description 4
- 206010070834 Sensitisation Diseases 0.000 abstract description 52
- 230000008313 sensitization Effects 0.000 abstract description 52
- 230000008447 perception Effects 0.000 abstract description 9
- 230000004888 barrier function Effects 0.000 description 6
- 230000005540 biological transmission Effects 0.000 description 4
- 230000000903 blocking effect Effects 0.000 description 4
- 238000012546 transfer Methods 0.000 description 4
- 239000011149 active material Substances 0.000 description 3
- 239000003086 colorant Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000004891 communication Methods 0.000 description 1
- 230000010259 detection of temperature stimulus Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
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- 239000003292 glue Substances 0.000 description 1
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- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L31/00—Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
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- H01L27/00—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate
- H01L27/14—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation
- H01L27/144—Devices controlled by radiation
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- H01L31/02161—Coatings for devices characterised by at least one potential jump barrier or surface barrier
- H01L31/02162—Coatings for devices characterised by at least one potential jump barrier or surface barrier for filtering or shielding light, e.g. multicolour filters for photodetectors
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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Abstract
The application provides a photoelectric detection device and a display device; the photoelectric detection device comprises a substrate, a driving layer and a photosensitive device layer, wherein the driving layer is arranged on one side of the substrate, the photosensitive device layer is arranged on one side, away from the substrate, of the driving layer, the photoelectric detection device further comprises a shading pattern, the photosensitive device layer comprises a first photosensitive unit and a second photosensitive unit, and the shading pattern is arranged on one side, away from the driving layer, of the second photosensitive unit. This application makes the shading pattern set up in one side that the drive layer was kept away from to the second sensitization unit through setting up the shading pattern in photoelectric detection device, then the second sensitization unit can not be sensitization, but the perception temperature, and through the temperature information of second sensitization unit perception, the temperature that can confirm first sensitization unit received influences to the first sensitization unit of corresponding compensation, thereby can avoid photoelectric detector to receive the temperature influence and lead to the detection result inaccurate.
Description
Technical Field
The application relates to the technical field of sensors, in particular to a photoelectric detection device and a display device.
Background
As a photoelectric sensor, the photoelectric detector is widely applied in the fields of image sensing, environmental monitoring, industrial control, ray detection, biological detection and the like. However, the conventional photoelectric detector is sensitive to temperature, and when the temperature changes, the response performance of the photoelectric detector changes, so that the detection result of the photoelectric detector is inaccurate.
Therefore, the existing photoelectric detector has the technical problem that the detection result is inaccurate due to the influence of temperature.
Disclosure of Invention
The embodiment of the application provides a photoelectric detection device and a display device, which are used for relieving the technical problem that the detection result is inaccurate due to the influence of temperature in the conventional photoelectric detector.
The embodiment of the present application provides a photoelectric detection device, and this photoelectric detection device includes:
a substrate;
the driving layer is arranged on one side of the substrate;
the photosensitive device layer is arranged on one side, away from the substrate, of the driving layer;
the photoelectric detection device further comprises a shading pattern, the photosensitive device layer comprises a first photosensitive unit and a second photosensitive unit, and the shading pattern is arranged on one side, away from the driving layer, of the second photosensitive unit.
In some embodiments, the photosensitive device layer comprises:
the first electrode layer is arranged on one side, far away from the substrate, of the driving layer;
the photosensitive layer comprises an active layer, and is arranged on one side, far away from the driving layer, of the first electrode layer;
the second electrode layer is arranged on one side of the photosensitive layer far away from the first electrode layer;
the photoelectric detection device further comprises an encapsulation layer, the encapsulation layer is arranged on one side, away from the photosensitive layer, of the second electrode layer, and the shading pattern is arranged on one side, away from the second electrode layer, of the encapsulation layer; or the shading pattern is arranged between the packaging layer and the second electrode layer.
In some embodiments, the first photosensitive unit includes at least a first red photosensitive unit, a first green photosensitive unit and a first blue photosensitive unit, and the second photosensitive unit has the same photosensitive color as at least one of the first photosensitive units.
In some embodiments, the second light sensing unit includes a second red light sensing unit having the same sensing color as the first red light sensing unit, a second green light sensing unit having the same sensing color as the first green light sensing unit, and a second blue light sensing unit having the same sensing color as the first blue light sensing unit;
the light shielding patterns comprise a first light shielding pattern, a second light shielding pattern and a third light shielding pattern;
the first shading pattern is arranged on one side, away from the driving layer, of the second red photosensitive unit, the second shading pattern is arranged on one side, away from the driving layer, of the second green photosensitive unit, and the third shading pattern is arranged on one side, away from the driving layer, of the second blue photosensitive unit.
In some embodiments, the first red photosensitive cell is disposed adjacent to the second red photosensitive cell, the first green photosensitive cell is disposed adjacent to the second green photosensitive cell, and the first blue photosensitive cell is disposed adjacent to the second blue photosensitive cell.
In some embodiments, the active layer includes a first active portion corresponding to the first photosensitive cell and a second active portion corresponding to the second photosensitive cell, the first active portion includes a first red active portion, a first green active portion, and a first blue active portion, and the second active portion is the same material as at least one of the first red active portion, the first green active portion, and the first blue active portion.
In some embodiments, the first photosensitive unit includes at least a first red photosensitive unit, a first green photosensitive unit and a first blue photosensitive unit, and the second photosensitive unit is different from any one of the first photosensitive units in photosensitive color.
In some embodiments, the active layer includes a first active portion corresponding to the first photosensitive unit and a second active portion corresponding to the second photosensitive unit, the first active portion being different in material from the second active portion.
In some embodiments, the photo detection device further includes a filter layer disposed on a side of the encapsulation layer away from the second electrode layer, the filter layer includes a color resist layer and a black matrix layer, the color resist layer is disposed corresponding to the first photo sensing unit, and the black matrix layer includes a light shielding pattern.
Meanwhile, an embodiment of the present application provides a display device, which includes a display panel and the photodetection device according to any of the above embodiments.
Has the advantages that: the application provides a photoelectric detection device and a display device; the photoelectric detection device comprises a substrate, a driving layer and a photosensitive device layer, wherein the driving layer is arranged on one side of the substrate, the photosensitive device layer is arranged on one side, away from the substrate, of the driving layer, the photoelectric detection device further comprises a shading pattern, the photosensitive device layer comprises a first photosensitive unit and a second photosensitive unit, and the shading pattern is arranged on one side, away from the driving layer, of the second photosensitive unit. This application makes the shading pattern set up in one side that the drive layer was kept away from to the second sensitization unit through setting up the shading pattern in photoelectric detection device, then the second sensitization unit can not be sensitization, but the perception temperature, and through the temperature information of second sensitization unit perception, the temperature that can confirm first sensitization unit received influences to the first sensitization unit of corresponding compensation, thereby can avoid photoelectric detector to receive the temperature influence and lead to the detection result inaccurate.
Drawings
The technical solution and other advantages of the present application will become apparent from the detailed description of the embodiments of the present application with reference to the accompanying drawings.
Fig. 1 is a first schematic view of a photodetection device according to an embodiment of the present application.
Fig. 2 is a schematic view of a photosensitive layer provided in an embodiment of the present application.
Fig. 3 is a second schematic view of a photodetecting device according to an embodiment of the present application.
Fig. 4 is a third schematic view of a photodetecting device according to an embodiment of the present application.
Fig. 5 is a fourth schematic view of a photodetection device according to an embodiment of the present application.
Fig. 6 is a fifth schematic view of a photodetecting device according to an embodiment of the present application.
Fig. 7 is a sixth schematic view of a photodetecting device according to an embodiment of the present application.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. It is to be understood that the embodiments described are only a few embodiments of the present application and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
In the description of the present application, it is to be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present application and for simplicity in description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed in a particular orientation, and be operated in a particular manner, and are not to be construed as limiting the present application. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first" and "second" may explicitly or implicitly include one or more of the described features. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.
In the description of the present application, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; may be mechanically connected, may be electrically connected or may be in communication with each other; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.
In this application, unless expressly stated or limited otherwise, the recitation of a first feature "on" or "under" a second feature may include the recitation of the first and second features being in direct contact, and may also include the recitation of the first and second features not being in direct contact, but being in contact with another feature between them. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. "beneath," "under" and "beneath" a first feature includes the first feature being directly beneath and obliquely beneath the second feature, or simply indicating that the first feature is at a lesser elevation than the second feature.
The following disclosure provides many different embodiments or examples for implementing different features of the application. In order to simplify the disclosure of the present application, specific example components and arrangements are described below. Of course, they are merely examples and are not intended to limit the present application. Further, the present application may repeat reference numerals and/or reference letters in the various examples for simplicity and clarity and does not in itself dictate a relationship between the various embodiments and/or arrangements discussed. In addition, examples of various specific processes and materials are provided herein, but one of ordinary skill in the art may recognize applications of other processes and/or use of other materials.
The embodiment of the application aims at the technical problem that the detection result is inaccurate due to the fact that the existing photoelectric detector is influenced by temperature, and provides a photoelectric detection device and a display device, so that the technical problem is relieved.
As shown in fig. 1, an embodiment of the present application provides a photodetection device, where the photodetection device 1 includes:
a substrate 11;
a driving layer 12 disposed on one side of the substrate 11;
a photosensitive device layer 13 disposed on a side of the driving layer 12 away from the substrate 11;
the photodetection device 1 further includes a light shielding pattern 172, the photosensitive device layer 13 includes a first photosensitive unit 21 and a second photosensitive unit 22, and the light shielding pattern 172 is disposed on a side of the second photosensitive unit 22 away from the driving layer 12.
The embodiment of the application provides a photoelectric detection device, this photoelectric detection device makes the shading pattern set up in one side that the drive layer was kept away from to the second sensitization unit through setting up the shading pattern in photoelectric detection device, then the second sensitization unit can not be sensitization, but the perception temperature, through the temperature information of second sensitization unit perception, can confirm the temperature influence that first sensitization unit received to the first sensitization unit of corresponding compensation, thereby can avoid photoelectric detector to receive the temperature influence and lead to the detection result inaccurate.
In one embodiment, as shown in FIG. 1, the photosensitive device layer 13 includes:
a first electrode layer 131 disposed on a side of the driving layer 12 away from the substrate 11;
a photosensitive layer 133, wherein the photosensitive layer 133 includes an active layer 33, and the photosensitive layer 133 is disposed on a side of the first electrode layer 131 away from the driving layer 12;
a second electrode layer 134 disposed on a side of the photosensitive layer 133 away from the first electrode layer 131;
wherein, the photodetection device 1 further includes an encapsulation layer 15, the encapsulation layer 15 is disposed on a side of the second electrode layer 134 away from the photosensitive layer 133, and the light shielding pattern 172 is disposed on a side of the encapsulation layer 15 away from the second electrode layer 134 (as shown in fig. 1); alternatively, the light shielding pattern 172 is disposed between the package layer 15 and the second electrode layer 134 (as shown in fig. 4).
Specifically, when setting up the shading pattern, can set up the shading pattern in the encapsulation layer and keep away from the one side of second electrode layer, make light can't shine on the second sensitization unit to make the second sensitization unit can regard as the sensing that the temperature is carried out to the heat sensing unit, thereby confirm the temperature influence of sensitization unit under this temperature, and compensate first sensitization unit, avoid photoelectric detector to receive the temperature influence and lead to the detection result inaccurate.
The problem that the thickness of the photoelectric detection device is large due to the fact that the light shielding pattern is arranged on one side, far away from the second electrode layer, of the packaging layer is solved. The shading pattern is arranged between the packaging layer and the second electrode layer, so that the shading pattern is flattened by the flattening layer without increasing the thickness of the photoelectric detection device, and the thickness of the photoelectric detection device is reduced.
In one embodiment, as shown in fig. 1, the first photosensitive unit 21 includes at least a first red photosensitive unit 211, a first green photosensitive unit 212, and a first blue photosensitive unit 213, and the second photosensitive unit 22 has the same photosensitive color as at least one of the first photosensitive units 21. The photosensitive color of at least one photosensitive unit in the second photosensitive unit and the first photosensitive unit is the same, when the photosensitive unit is influenced by the sensing temperature of the second photosensitive unit, the photosensitive units with the same photosensitive color in the second photosensitive unit and the first photosensitive unit are influenced by the temperature, the influence degree of the temperature on the first photosensitive unit can be directly determined through the second photosensitive unit, then the compensation is carried out through electric signals, and the fact that the detection result is inaccurate due to the fact that the photoelectric detector is influenced by the temperature is avoided.
In one embodiment, as shown in fig. 1, the second photosensitive unit 22 includes a second red photosensitive unit 221, a second green photosensitive unit 222 and a second blue photosensitive unit 223, the second red photosensitive unit 221 has the same photosensitive color as the first red photosensitive unit 211, the second green photosensitive unit 222 has the same photosensitive color as the first green photosensitive unit 212, and the second blue photosensitive unit 223 has the same photosensitive color as the first blue photosensitive unit 213;
the light blocking patterns 172 include first, second, and third light blocking patterns 172a, 172b, and 172 c;
the first light shielding pattern 172a is disposed on a side of the second red photosensitive unit 221 away from the driving layer 12, the second light shielding pattern 172b is disposed on a side of the second green photosensitive unit 222 away from the driving layer 12, and the third light shielding pattern 172c is disposed on a side of the second blue photosensitive unit 223 away from the driving layer 12.
In the embodiment of the application, by arranging the second photosensitive unit, the second photosensitive unit comprises a second red photosensitive unit with the same photosensitive color as the first red photosensitive unit, a second green photosensitive unit with the same photosensitive color as the first green photosensitive unit and a second blue photosensitive unit with the same photosensitive color as the first blue photosensitive unit, and arranging the first shading pattern, the second shading pattern and the third shading pattern on the sides, close to the external light, of the second red photosensitive unit, the second green photosensitive unit and the second blue photosensitive unit respectively, the degree of the first red photosensitive unit affected by the temperature can be determined through the first shading pattern and the second red photosensitive unit, the compensation data of the first red photosensitive unit can be correspondingly determined, the first red photosensitive unit is compensated, the degree of the first green photosensitive unit affected by the temperature can be determined through the second shading pattern and the second green photosensitive unit, correspondingly determining the compensation data of the first green photosensitive unit, and compensating the first green photosensitive unit; the degree of the first blue light sensing unit affected by the temperature is determined through the third shading pattern and the second blue light sensing unit, and the first blue light sensing unit is compensated by correspondingly determining the compensation data of the first blue light sensing unit, so that the condition that the detection result is inaccurate due to the fact that the photoelectric detector is affected by the temperature is avoided.
Specifically, because the second red sensitization unit, the green sensitization unit of second and the blue sensitization unit of second respectively with first red sensitization unit, the sensitization colour of first green sensitization unit and first blue sensitization unit is the same, the structure of the sensitization unit that each sensitization unit corresponds in the first sensitization unit, the material is the same, consequently, it is comparatively accurate to confirm the degree of temperature influence according to the sensitization unit that corresponds, thereby can accurately confirm the degree that first sensitization unit receives the temperature influence, the corresponding compensation data that confirm needs, and compensate first sensitization unit, avoid the photoelectric detector to receive the temperature influence and lead to the detection result inaccurate.
The problem that the perception of temperature influence is inaccurate due to different temperatures can be caused by large distance between the photosensitive units for the same photosensitive color. In one embodiment, as shown in fig. 1, the first red photosensitive cell 211 is disposed adjacent to the second red photosensitive cell 221, the first green photosensitive cell 212 is disposed adjacent to the second green photosensitive cell 222, and the first blue photosensitive cell 213 is disposed adjacent to the second blue photosensitive cell 223. Through setting up the sensitization unit of the same sensitization colour adjacent, then the temperature difference of the sensitization unit of the same sensitization colour is less, avoids the temperature difference of the sensitization unit of the same sensitization colour great and leads to the perception inaccurate to the temperature influence.
The above embodiment has been described in detail by taking an example of adjacent light sensing units of the same light sensing color, but the embodiment of the present application is not limited thereto, for example, when the temperature difference is small at various places in the photodetecting device, or in order to avoid poor light collection effect caused by large distance between light sensing units of different light sensing colors, the first light sensing unit and each light sensing unit in the second light sensing unit may be separately disposed, for example, the first red light sensing unit, the first green light sensing unit and the first blue light sensing unit in the first light sensing unit are disposed adjacently, and the second red light sensing unit, the second green light sensing unit and the second blue light sensing unit in the second light sensing unit are disposed adjacently.
In one embodiment, as shown in fig. 1 and 2, the active layer 33 includes a first active portion 331 corresponding to the first photosensitive unit 21 and a second active portion 332 corresponding to the second photosensitive unit 22, the first active portion 331 includes a first red active portion 331a, a first green active portion 331b and a first blue active portion 331c, and the second active portion 332 is made of the same material as at least one of the first red active portion 332a, the first green active portion 332b and the first blue active portion 332 c. By making the second active part be the same as the material of at least one of the first active part, the first green active part and the first blue active part, the second photosensitive unit is the same as the first photosensitive unit in structure and material, the temperature influence sensed by the second photosensitive unit is the same as the temperature influence received by the first photosensitive unit, and the compensation data of the first photosensitive unit is accurately determined through the second photosensitive unit, so that the inaccurate detection result caused by the temperature influence of the photoelectric detector is avoided.
Specifically, as shown in fig. 1, the photosensitive layer 133 includes a red photosensitive portion 133a, a green photosensitive portion 133b, and a blue photosensitive portion 133c, each of which is blocked by the pixel defining layer 132. As shown in fig. 2, the photosensitive layer 133 includes a first transfer layer 31, a first barrier layer 32, an active layer 33, a second barrier layer 34, and a second transfer layer 35, and the first transfer layer, the first barrier layer, the second barrier layer, and the second transfer layer of the red, green, and blue photosensitive sections 133a, 133b, and 133c are disposed in the same layer, separately disposed only for the active layer.
Specifically, as shown in fig. 2, the second active portion 332 includes a second red active portion 332a, a second green active portion 332b, and a second blue active portion 332c, the material of the second red active portion 332a is the same as the material of the first red active portion 331a, the material of the second green active portion 332b is the same as the material of the first green active portion 331b, and the material of the second blue active portion 332c is the same as the material of the first blue active portion 331 c. Because the first transmission layer, the first barrier layer, the second barrier layer and the second transmission layer in each photosensitive unit are arranged on the same layer, and the materials of the active parts with the same photosensitive color are the same, the device structure and the materials of the photosensitive units with the same photosensitive color are the same, so that the temperature influence degree determined by the photosensitive units with the same photosensitive color is accurate, the temperature influence on the first photosensitive unit can be accurately compensated, and the inaccurate detection result caused by the temperature influence on the photoelectric detector is avoided.
In one embodiment, as shown in fig. 5, the first photosensitive unit 21 includes at least a first red photosensitive unit 211, a first green photosensitive unit 212, and a first blue photosensitive unit 213, and the second photosensitive unit 22 has a photosensitive color different from that of any one of the first photosensitive units 21. The photosensitive color of the second photosensitive unit is different from that of the first photosensitive unit, so that the second photosensitive unit can sense the temperature influence degree, the corresponding compensation data for determining the first photosensitive unit compensates the temperature influence on the first photosensitive unit, and the situation that the photoelectric detector is influenced by the temperature to cause inaccurate detection results is avoided.
In one embodiment, the active layer includes a first active portion corresponding to the first photosensitive cell and a second active portion corresponding to the second photosensitive cell, the first active portion being different in material from the second active portion. Through making the first active part of first sensitization unit and the material of the second active part of second sensitization unit different, then the degree that the second sensitization unit can sense the temperature influence, the compensation data of the first sensitization unit of corresponding definite compensates the temperature influence that first sensitization unit received, avoids photodetector to receive the temperature influence and leads to the detection result inaccurate.
Specifically, taking the example that the second photosensitive unit can determine the dark current corresponding to the temperature, when the photosensitive colors of the second photosensitive unit are different from those of the first photosensitive unit, the temperature at that time needs to be determined through the curve of the dark current and the temperature of the second photosensitive unit, and then the dark current of the first photosensitive unit is determined through the curve of the temperature and the dark current of the first photosensitive unit, so that the first photosensitive unit can be compensated according to the magnitude of the dark current, and the inaccurate detection result caused by the fact that the photoelectric detector is influenced by the temperature can be avoided. For the same photosensitive color of the second photosensitive unit and the first photosensitive unit, because the second photosensitive unit and the first photosensitive unit have the same structure and color, the dark current determined by the second photosensitive unit can be directly used as the dark current of the first photosensitive unit, so that the first photosensitive unit is compensated.
Specifically, as shown in fig. 5, the first photosensitive unit 21 further includes a yellow photosensitive unit 214 and a purple photosensitive unit 215, and the photosensitive layer 133 further includes a yellow photosensitive portion 133d, a purple photosensitive portion 133e, and a black photosensitive portion 133f, which are blocked by the pixel defining layer 132. It is understood that the first transmission layer, the first blocking layer, the second blocking layer and the second transmission layer of each light sensing unit are arranged in the same layer, and are different only in the arrangement of the active layer, specifically, the active portions of the yellow light sensing portion, the purple light sensing portion and the black light sensing portion are different from each other to sense light of different colors.
Specifically, the black photosensitive part may adopt different active materials, including the same material as the active material in the first photosensitive unit, or may adopt a material different from the active material in the first photosensitive unit, and the compensation data of the first photosensitive unit is determined according to the temperature-dark current curve of each photosensitive unit, so as to avoid inaccurate detection results caused by temperature influence on the photoelectric detector.
In one embodiment, as shown in fig. 1, the photo detection device 1 further includes a filter layer 17, the filter layer 17 is disposed on a side of the encapsulation layer 15 away from the second electrode layer 134, the filter layer 17 includes a color resist layer 171 and a black matrix layer, the color resist layer 171 is disposed corresponding to the first photosensitive unit 21, and the black matrix layer includes a light shielding pattern. One side through keeping away from the second electrode layer at the encapsulation layer sets up the filter layer, then can filter through the colour resistance layer, make the light sensing unit can be accurate produce the electric current according to light, thereby realize photoelectric detection's function, simultaneously, black matrix can form the shading pattern and carry out the shading, make the second light sensing unit only sense the temperature, and can not have light irradiation to the second light sensing unit, make the second light sensing unit can confirm the influence of temperature to first light sensing unit, it is corresponding to compensate first light sensing unit, avoid photoelectric detector to receive the temperature influence and lead to the detection result inaccurate.
Specifically, as shown in fig. 5, the color resist layer 171 includes a red color resist 171a corresponding to the first red photosensitive cell, a green color resist 171b corresponding to the first green photosensitive cell, a blue color resist 171c corresponding to the first blue photosensitive cell, a yellow color resist 171d corresponding to the yellow photosensitive cell, and a violet color resist 171e corresponding to the violet photosensitive cell, and a black matrix located between adjacent color resists is used to form a light shielding pattern 172, so that light is filtered by the color resists and light received by the second photosensitive cell is shielded by the black matrix.
Specifically, as shown in fig. 1, when the second photosensitive unit 22 includes a plurality of photosensitive units, the black matrix may form a plurality of light-shielding patterns, for example, the black matrix in fig. 1 may form a first light-shielding pattern 172a, a second light-shielding pattern 172b, and a third light-shielding pattern 172 c.
Specifically, since the black matrix overlaps the light-shielding pattern in the drawings of the embodiments of the present application, the portion indicated by the light-shielding pattern is also the black matrix, for example, the light-shielding pattern 172 in fig. 1 is also the black matrix.
Specifically, when the first photosensitive unit senses light, the active layer of each photosensitive unit only senses light with a specific wavelength, and therefore, the second photosensitive unit can be shielded by only providing a black matrix to form a light shielding pattern without providing a filter layer. As shown in fig. 3 and 6, the filter layer 17 includes black matrices and a filling layer 173 filled between the black matrices, and light is shielded by the black matrix forming light shielding patterns 172, and the filling layer may be provided between the black matrices to be planarized.
In particular, forming the light-shielding pattern for disposing the black matrix causes a problem that the thickness of the photodetecting device is large. As shown in fig. 4 and 7, the photodetection device 1 further includes a first flat layer 14 and a second flat layer 16, the first flat layer 14 is disposed between the second electrode layer 134 and the encapsulation layer 15, the second flat layer 16 is disposed between the second electrode layer and the first flat layer, and the light shielding pattern 172 is disposed on a side of the encapsulation layer 15 away from the first flat layer 14.
In one embodiment, as shown in fig. 1, the photo detection device 1 further comprises an optical glue 18 and a cover plate 19.
Specifically, the operation process of the photoelectric detection apparatus will be described by taking the same structure and material of the first photosensitive unit and the second photosensitive unit as an example. When the photoelectric detection device is illuminated by light, the dark current is determined through the second light sensing unit, and the photocurrent is determined through the first light sensing unit; at the moment, the temperature can be determined by comparing the dark current through the driving chip, and the temperature is displayed; meanwhile, the drive chip can determine the light responsivity according to the photocurrent and the dark current, and then the photosensitive signal is calibrated and output according to the light responsivity, so that the inaccuracy of the detection result caused by the influence of the temperature on the photoelectric detector is avoided.
Specifically, for the same structure of the first photosensitive unit and the second photosensitive unit, but the materials of the active layers of the first photosensitive unit and the second photosensitive unit are different, after the dark current is determined by the second photosensitive unit, the temperature needs to be determined according to the temperature-current curve of the second photosensitive unit after the photocurrent is determined by the first photosensitive unit, and then the dark current of the first photosensitive unit is determined according to the temperature and the temperature-current curve of the first photosensitive unit, so that the photo-responsivity can be determined according to the photocurrent and the dark current of the first photosensitive unit, and then the photosensitive signal is calibrated and output according to the photo-responsivity, thereby preventing the photo detector from being influenced by the temperature to cause inaccurate detection result.
Meanwhile, an embodiment of the present application provides a display device, which includes a display panel and the photodetection device according to any one of the above embodiments.
According to the above embodiments:
the embodiment of the application provides a photoelectric detection device and a display device; the photoelectric detection device comprises a substrate, a driving layer and a photosensitive device layer, wherein the driving layer is arranged on one side of the substrate, the photosensitive device layer is arranged on one side, away from the substrate, of the driving layer, the photoelectric detection device further comprises a shading pattern, the photosensitive device layer comprises a first photosensitive unit and a second photosensitive unit, and the shading pattern is arranged on one side, away from the driving layer, of the second photosensitive unit. This application makes the shading pattern set up in one side that the drive layer was kept away from to the second sensitization unit through setting up the shading pattern in photoelectric detection device, and then the second sensitization unit can not sensitization, but the perception temperature, and through the temperature information of second sensitization unit perception, the temperature influence that can confirm first sensitization unit received to the first sensitization unit of corresponding compensation, thereby can avoid photoelectric detector to receive the temperature influence and lead to the detecting result inaccurate.
In the foregoing embodiments, the descriptions of the respective embodiments have respective emphasis, and for parts that are not described in detail in a certain embodiment, reference may be made to the related descriptions of other embodiments.
The above provides a detailed description of the photodetection device and the display device provided in the embodiments of the present application, and the principles and embodiments of the present application are explained in the present application by applying specific examples, and the description of the above embodiments is only used to help understanding the technical solutions and core ideas of the present application; those of ordinary skill in the art will understand that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications or substitutions do not depart from the spirit and scope of the present disclosure as defined by the appended claims.
Claims (10)
1. A photodetecting device, characterized by comprising:
a substrate;
the driving layer is arranged on one side of the substrate;
the photosensitive device layer is arranged on one side, away from the substrate, of the driving layer;
the photoelectric detection device further comprises a shading pattern, the photosensitive device layer comprises a first photosensitive unit and a second photosensitive unit, and the shading pattern is arranged on one side, away from the driving layer, of the second photosensitive unit.
2. The photodetection apparatus according to claim 1 wherein said photosensitive device layer comprises:
the first electrode layer is arranged on one side, far away from the substrate, of the driving layer;
the photosensitive layer comprises an active layer, and is arranged on one side, far away from the driving layer, of the first electrode layer;
the second electrode layer is arranged on one side of the photosensitive layer far away from the first electrode layer;
the photoelectric detection device further comprises an encapsulation layer, the encapsulation layer is arranged on one side, away from the photosensitive layer, of the second electrode layer, and the shading pattern is arranged on one side, away from the second electrode layer, of the encapsulation layer; or the shading pattern is arranged between the packaging layer and the second electrode layer.
3. The photodetecting device according to claim 2, wherein said first photosensitive unit comprises at least a first red photosensitive unit, a first green photosensitive unit and a first blue photosensitive unit, and said second photosensitive unit has the same photosensitive color as at least one of said first photosensitive units.
4. The photodetecting device according to claim 3, wherein said second photosensitive unit comprises a second red photosensitive unit, a second green photosensitive unit, and a second blue photosensitive unit, said second red photosensitive unit having the same photosensitive color as said first red photosensitive unit, said second green photosensitive unit having the same photosensitive color as said first green photosensitive unit, and said second blue photosensitive unit having the same photosensitive color as said first blue photosensitive unit;
the light shielding patterns comprise a first light shielding pattern, a second light shielding pattern and a third light shielding pattern;
the first shading pattern is arranged on one side, away from the driving layer, of the second red photosensitive unit, the second shading pattern is arranged on one side, away from the driving layer, of the second green photosensitive unit, and the third shading pattern is arranged on one side, away from the driving layer, of the second blue photosensitive unit.
5. The photodetecting device according to claim 4, wherein said first red photosensitive cell is disposed adjacent to said second red photosensitive cell, said first green photosensitive cell is disposed adjacent to said second green photosensitive cell, and said first blue photosensitive cell is disposed adjacent to said second blue photosensitive cell.
6. The photodetection device according to claim 3, characterized in that said active layer comprises a first active portion corresponding to said first photosensitive cell and a second active portion corresponding to said second photosensitive cell, said first active portion comprising a first red active portion, a first green active portion and a first blue active portion, said second active portion being the same material as at least one of said first red active portion, said first green active portion and said first blue active portion.
7. The photodetecting device according to claim 2, wherein said first photosensitive unit comprises at least a first red photosensitive unit, a first green photosensitive unit and a first blue photosensitive unit, and said second photosensitive unit has a photosensitive color different from that of any one of said first photosensitive units.
8. The photodetection device according to claim 7, characterized in that the active layer comprises a first active portion corresponding to the first photosensitive cell and a second active portion corresponding to the second photosensitive cell, the first active portion being different in material from the second active portion.
9. The photodetecting device according to claim 2, further comprising a filter layer disposed on a side of the encapsulation layer away from the second electrode layer, wherein the filter layer comprises a color resist layer disposed corresponding to the first photosensitive unit and a black matrix layer comprising a light shielding pattern.
10. A display device comprising a display panel and a photodetection device according to any of claims 1 to 9.
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007208008A (en) * | 2006-02-02 | 2007-08-16 | Olympus Corp | Optical detection module |
| JP2016012642A (en) * | 2014-06-27 | 2016-01-21 | パナソニックＩｐマネジメント株式会社 | Solid-state image pickup device and control method for the same |
| CN111370525A (en) * | 2020-03-13 | 2020-07-03 | 京东方科技集团股份有限公司 | Photoelectric detector, preparation method thereof and photoelectric detection device |
| CN111599846A (en) * | 2020-05-29 | 2020-08-28 | 京东方科技集团股份有限公司 | Display panel, preparation method thereof and display device |
| CN112542089A (en) * | 2020-12-02 | 2021-03-23 | 合肥维信诺科技有限公司 | Display panel and display device |
| US20210328183A1 (en) * | 2019-01-18 | 2021-10-21 | Boe Technology Group Co., Ltd. | Display Substrate Panel and Preparation Method Thereof, and Display Panel |
-
2022
- 2022-05-25 CN CN202210577652.6A patent/CN115000204B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007208008A (en) * | 2006-02-02 | 2007-08-16 | Olympus Corp | Optical detection module |
| JP2016012642A (en) * | 2014-06-27 | 2016-01-21 | パナソニックＩｐマネジメント株式会社 | Solid-state image pickup device and control method for the same |
| US20210328183A1 (en) * | 2019-01-18 | 2021-10-21 | Boe Technology Group Co., Ltd. | Display Substrate Panel and Preparation Method Thereof, and Display Panel |
| CN111370525A (en) * | 2020-03-13 | 2020-07-03 | 京东方科技集团股份有限公司 | Photoelectric detector, preparation method thereof and photoelectric detection device |
| CN111599846A (en) * | 2020-05-29 | 2020-08-28 | 京东方科技集团股份有限公司 | Display panel, preparation method thereof and display device |
| CN112542089A (en) * | 2020-12-02 | 2021-03-23 | 合肥维信诺科技有限公司 | Display panel and display device |
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