Display panel and display device

Abstract

The invention relates to the field of display, and particularly discloses a display panel and a display device.The display panel comprises a substrate, a plurality of anodes are arranged above the substrate at intervals, a light-emitting layer is arranged above each anode, and an isolation column is arranged between every two adjacent light-emitting layers; a first detection assembly and a second detection assembly are arranged in the isolation column, the first detection assembly is connected with the second detection assembly, and the first detection assembly is used for detecting light intensity information of an external environment; the second detection assembly is used for detecting magnetic field information. According to the display panel, the magnetic field detection function and the light detection function are integrated in the display panel under the condition that the size of the opening for normal display of the display panel is not affected, and the functionality of the display panel is improved.

Description

Technical Field

[0001] This application relates to the field of displays, and more particularly to a display panel and a display device. Background Technology

[0002] A light sensor, also known as an ambient light sensor, is used to detect the intensity of light in the surrounding environment. It typically consists of a transistor and a photodiode; the transistor amplifies the current signal, while the photodiode converts the light energy into a current signal. A magnetic field sensor, on the other hand, is a device that converts various magnetic fields and their changes into electrical signals. When used in display panels, it can detect the influence of external magnetic fields on the display panel, facilitating its adjustment. However, integrating these sensing units inside the display panel undoubtedly affects the openings for normal display.

[0003] How to integrate magnetic field detection and light detection functions into the display panel without affecting the size of the opening for normal display, thereby improving the functionality of the display panel, has become an urgent problem to be solved in this field. Summary of the Invention

[0004] This application discloses a display panel and a display device, the purpose of which is to integrate magnetic field detection function and light detection function into the display panel without affecting the size of the opening for normal display, thereby improving the functionality of the display panel.

[0005] This application discloses a display panel, including a substrate. A plurality of anodes are spaced apart on the substrate, and a light-emitting layer is disposed on top of each anode. An isolation pillar is disposed between two adjacent light-emitting layers. A first detection component and a second detection component are disposed within the isolation pillar. The first detection component is connected to the second detection component. The first detection component is used to detect ambient light intensity information, and the second detection component is used to detect magnetic field information.

[0006] Optionally, the first detection component includes a photodiode layer and a first electrode, and the second detection component includes a magnetoresistive sensitive layer. The first electrode is made of a light-transmitting material and faces the inner wall of the isolation column. The photodiode layer is located between the first electrode and the magnetoresistive sensitive layer, and the photodiode layer is connected to both the first electrode and the magnetoresistive sensitive layer. The photodiode layer is used to detect ambient light intensity information. The first electrode controls the photodiode layer to open or close. The magnetoresistive sensitive layer is used to detect magnetic field information to correct the light intensity information based on the detected magnetic field information.

[0007] Optionally, when detecting magnetic field information, no electrical signal is provided to the first electrode, the photodiode layer is turned off, and a first electrical signal is provided to the magnetoresistive sensitive layer, which detects the magnetic field in the environment; when detecting ambient light intensity, a second electrical signal is provided to the first electrode, the first electrode controls the photodiode layer to turn on, and the photodiode layer collects light from the environment.

[0008] Optionally, the magnetoresistive sensitive layer is made of at least one material selected from iron, cobalt, and nickel.

[0009] Optionally, the magnetoresistive sensitive layer, the first electrode, and the photodiode layer are all perpendicular to the substrate, and the photodiode layer and the first electrode are disposed on at least one side of the magnetoresistive sensitive layer in the width direction of the isolation pillar.

[0010] Optionally, a cathode layer is provided above the isolation pillar and the light-emitting layer. The isolation pillar has an opening at the end of the first electrode near the cathode layer. The end of the first electrode near the cathode layer is connected to the cathode layer through the opening. The magnetoresistive sensitive layer and the photodiode layer are both disconnected from the cathode layer.

[0011] Optionally, the magnetoresistive sensitive layer is disposed at the bottom of the isolation pillar and parallel to the substrate; the photodiode layer is disposed on the magnetoresistive sensitive layer, and the first electrode is disposed on the photodiode layer; the magnetoresistive sensitive layer is disposed in the same layer as the anode and is disconnected from the anode.

[0012] Optionally, in at least two different isolation pillars, in one isolation pillar, the magnetoresistive sensitive layer, the first electrode, and the photodiode layer are all perpendicular to the substrate; the magnetoresistive sensitive layer has the photodiode layer and the first electrode disposed on at least one side of the isolation pillar in the width direction; a cathode layer is disposed above the isolation pillar and the light-emitting layer; the isolation pillar has an opening at the end of the first electrode near the cathode layer, and the end of the first electrode near the cathode layer is connected to the cathode layer through the opening; the magnetoresistive sensitive layer and the photodiode layer are both disconnected from the cathode layer; in the other isolation pillar, the magnetoresistive sensitive layer is disposed at the bottom of the isolation pillar and parallel to the substrate; the photodiode layer is disposed on the magnetoresistive sensitive layer, and the first electrode is disposed on the photodiode layer; the magnetoresistive sensitive layer is disposed in the same layer as the anode and is disconnected from the anode.

[0013] Optionally, within the two isolation pillars, the thickness of the photodiode layer parallel to the substrate is greater than the thickness of the photodiode layer perpendicular to the substrate.

[0014] This application also discloses a display device, including a rear shell, and the display device further includes the aforementioned display panel, which is disposed within the rear shell.

[0015] This application improves upon traditional display panels by placing a first detection component and a second detection component within an isolation pillar between two adjacent light-emitting layers. Since the isolation pillar itself is located between the two light-emitting layers, it does not obstruct the opening for normal display of the display panel. Therefore, the first and second detection components placed within the isolation pillar do not affect the size of the opening for normal display of the display panel. Simultaneously, the first detection component detects the ambient light intensity, and the second detection component detects the magnetic field information in the external environment. This achieves the integration of magnetic field detection and light detection functions within the display panel without affecting the size of the opening for normal display, thereby enhancing the functionality of the display panel. Attached Figure Description

[0016] The accompanying drawings are provided to further illustrate the embodiments of this application and form part of the specification. They serve to demonstrate implementation methods of this application and, together with the textual description, explain the principles of this application. Obviously, the drawings described below are merely some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without any creative effort. In the drawings: Figure 1 This is a schematic diagram of the first embodiment of the display panel of this application; Figure 2 This is a timing example diagram of the first electrode and the magnetoresistive sensitive layer serving as the second electrode in the first embodiment of the display panel of this application.

[0017] Figure 3 This is a schematic diagram of a second embodiment of the display panel of this application; Figure 4 This is a schematic diagram of a third embodiment of the display panel of this application; Figure 5 This is a schematic diagram of an embodiment of the display device of this application.

[0018] Among them, 10 is a display device; 100 is a display panel; 200 is a back cover; 110 is a substrate; 120 is an anode; 130 is a light-emitting layer; 140 is an isolation pillar; 141 is an opening; 150 is a first detection component; 151 is a photodiode layer; 152 is a first electrode; 160 is a second detection component; 170 is a magnetoresistive sensitive layer; and 180 is a cathode layer. Detailed Implementation

[0019] The present application will now be described in detail with reference to the accompanying drawings and optional embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0020] Figure 1 This is a schematic diagram of the first embodiment of the display panel of this application. Figure 2 This is a timing diagram showing the first electrode and the magnetoresistive sensitive layer serving as the second electrode in the first embodiment of the display panel of this application.

[0021] like Figure 1 and Figure 2 As shown in the figure, this application discloses a display panel 100, including a substrate 110. A plurality of anodes 120 are disposed at intervals above the substrate 110. A light-emitting layer 130 is disposed above each anode 120. An isolation pillar 140 is disposed between two adjacent light-emitting layers 130. A first detection component 150 and a second detection component 160 are disposed in the isolation pillar 140. The first detection component 150 and the second detection component 160 are connected. The first detection component 150 is used to detect ambient light intensity information. The second detection component 160 is used to detect magnetic field information.

[0022] This application improves upon the conventional display panel 100 by placing a first detection component 150 and a second detection component 160 within an isolation pillar 140 between two adjacent light-emitting layers 130. Since the isolation pillar 140 itself is located between the two light-emitting layers 130, it will not obstruct the normal display opening 141 of the display panel 100. Therefore, the first detection component 150 and the second detection component 160 placed within the isolation pillar 140 will not affect the size of the normal display opening 141 of the display panel 100. At the same time, the first detection component 150 is used to detect the ambient light intensity, and the second detection component 160 is used to detect the magnetic field information in the external environment. Thus, the magnetic field detection function and the light detection function are integrated into the display panel 100 without affecting the size of the normal display opening 141 of the display panel 100, thereby improving the functionality of the display panel 100.

[0023] It should be noted that the display panel 100 in this application is mainly an OLED (Organic Light-Emitting Diode) display panel 100. In the traditional OLED display panel manufacturing, maskless deposition and photolithography are often used to pattern pixels, which can effectively replace the evaporation process. In order to achieve high resolution and color in passive matrix OLEDs and better solve the problems of low cathode template resolution and low device yield, the design of isolation pillars is introduced in the actual fabrication. That is, instead of using a metal template in the device fabrication, insulating isolation pillars are made on the substrate before evaporating the organic thin film and metal cathode, which ultimately separates the different pixels of the device to achieve a pixel array. The height of the isolation pillars is generally greater than the total thickness of all light-emitting layers participating in light emission except for the anode and cathode. In general, the materials of the isolation pillars are made of organic materials or multilayer inorganic insulating materials to achieve this required height.

[0024] This application provides a first detection component 150 and a second detection component 160 within an isolation pillar 140 between two adjacent light-emitting layers 130. Since the isolation pillar 140 itself is located between the two light-emitting layers 130, it will not obstruct the opening 141 of the display panel 100 for normal display. Therefore, the first detection component 150 and the second detection component 160 provided within the isolation pillar 140 will not affect the size of the opening 141 of the display panel 100 for normal display.

[0025] The main purpose of setting up the first detection component 150 is to detect the light intensity in the environment. However, when detecting ambient light, it is often affected by other environmental factors such as magnetic field interference, which reduces the accuracy and reliability of ambient light detection. Therefore, this application also connects the second detection component 160, which is used to detect magnetic field information, to the first detection component 150. The second detection component 160 detects the magnetic field information in the external environment, which facilitates the correction of the detection accuracy of the first detection component 150 based on the acquired magnetic field information, reduces the influence of the magnetic field in the environment on the light intensity detection, and improves the detection accuracy of the first detection component 150.

[0026] Specifically, the first detection component 150 includes a photodiode layer 151 and a first electrode 152, and the second detection component 160 includes a magnetoresistive sensitive layer 170. The first electrode 152 is made of a light-transmitting material and faces the inner wall of the isolation pillar 140. The photodiode layer 151 is located between the first electrode 152 and the magnetoresistive sensitive layer 170, and the photodiode layer 151 is connected to both the first electrode 152 and the magnetoresistive sensitive layer 170. The photodiode layer 151 is used to detect ambient light intensity information. The first electrode 152 controls the photodiode layer 151 to open or close. The magnetoresistive sensitive layer 170 is used to detect magnetic field information.

[0027] In this application, the first electrode 152 controls the photodiode layer 151 to open or close. When the first electrode 152 controls the photodiode layer 151 to open, the photodiode layer 151 converts the received light into a current signal, thereby detecting the light intensity and realizing the function of ambient light detection. When it is necessary to detect the magnetic field in the environment, the first electrode 152 controls the photodiode layer 151 to close. At this time, the magnetoresistive sensitive layer 170 detects the magnetic field information in the environment based on the magnetoresistive effect, realizing the magnetic field detection function. The magnetic field information includes the magnitude and direction of the magnetic field.

[0028] It should be noted that the magnetoresistive effect is the phenomenon where the resistance of a material changes in a magnetic field. For example, when the magnetoresistive sensing layer 170 is made of a strongly magnetic metal, when the applied magnetic field is parallel to the internal magnetization direction of the magnetoresistive sensing layer 170, the resistance of the magnetoresistive sensing layer 170 hardly changes with the applied magnetic field. When the applied magnetic field deviates from the internal magnetization direction of the magnetoresistive sensing layer 170, the resistance value of the magnetoresistive sensing layer 170 will decrease. This is the anisotropic magnetoresistive effect of the magnetoresistive sensing layer 170. Based on this principle, the direction of the magnetic field can be detected through the magnetoresistive sensing layer 170, and the magnitude of the magnetic field can be detected based on the change in the resistance value of the magnetoresistive sensing layer 170. The magnitude and direction of the magnetic field detected by the magnetoresistive sensing layer 170 can be used to determine the influence of the magnetic field on the photodiode layer 151, and the light intensity detected by the photodiode layer 151 can be corrected, which helps to improve the detection accuracy of the photodiode layer 151.

[0029] In this application, the magnetoresistive sensing layer 170 is made of at least one material selected from iron, cobalt, and nickel. Iron, cobalt, nickel, and their alloys are strong magnetic metals with high magnetoresistive effects. When the magnetoresistive sensing layer 170 is made of these materials, its resistance changes significantly when the external magnetic field changes, thus enabling more sensitive detection of changes in the magnetic field.

[0030] Furthermore, when detecting magnetic field information, no electrical signal is provided to the first electrode 152. The first electrode 152 controls the photodiode layer 151 to be turned off, and provides a first electrical signal to the magnetoresistive sensitive layer 170, which detects the magnetic field in the environment. When detecting ambient light intensity, a second electrical signal is provided to the first electrode 152, and the first electrode 152 controls the photodiode layer 151 to be turned on, which collects the light in the environment.

[0031] This embodiment of the application can flexibly switch between magnetic field detection and ambient light intensity detection by controlling the power supply state of the first electrode 152 to the photodiode layer 151.

[0032] When it is not necessary to detect the ambient light intensity, an electrical signal can be provided to the first electrode 152 instead of the first electrode 152. Since there is no electrical signal at the first electrode 152, there is no voltage across the photodiode layer 151, so the photodiode layer 151 is in a closed state. At this time, the light detection function of the photodiode layer 151 is not effective. After the first electrical signal is connected, the resistance of the magnetoresistive layer 170 will change due to the influence of the magnetic field. Therefore, the resistance change can be judged by the attenuation of the electrical signal of the magnetoresistive layer, and then the strength and direction of the magnetic field in the environment can be judged based on the magnetoresistive effect.

[0033] In this embodiment, the magnetoresistive sensitive layer 170 detects the magnetic field information in the environment based on the magnetoresistive effect. It determines the direction and magnitude of the magnetic field based on the change in its magnetoresistive resistance value, thereby realizing the detection of the environmental magnetic field. In this way, the magnetoresistive sensitive layer 170 can detect whether there is magnetic field interference in a certain direction in the external environment, thereby correcting the influence of the magnetic field on the light intensity of the photodiode layer 151 to detect the conversion efficiency, and improving the detection accuracy of the photodiode layer 151.

[0034] When it is necessary to detect ambient light intensity, a second electrical signal is provided to the first electrode 152. Since both the first electrode 152 and the magnetoresistive sensitive layer 170 receive electrical signals, the magnetoresistive sensitive layer 170 acts as an electrode at the other end of the photodiode layer 151. This applies a voltage to both ends of the photodiode layer 151, turning it on. This allows the photodiode layer 151 to collect light and convert it into an electrical signal, thus enabling the collection of ambient light. The first and second electrical signals can refer to current or voltage signals.

[0035] It is worth noting that, in order to avoid interference with the magnetic field detection of the magnetoresistive sensitive layer 170 after the first electrode 152 is supplied with an electrical signal, the magnetic field detection can be performed before the ambient light detection. That is, the order of opening the detection function can be to open the magnetic field detection function first and then the ambient light detection function.

[0036] In actual operation, the first electrical signal can be provided to the magnetoresistive sensitive layer 170 instead of the first electrode 152 to enable the magnetic field detection function. After the magnetic field information is detected, the second electrical signal is provided to the first electrode 152 to enable the photodiode layer 151 to turn on, thereby enabling the photodiode layer 151 to collect light and convert it into an electrical signal, thus realizing the collection and detection of light in the environment.

[0037] Furthermore, a cathode layer 180 is provided above the isolation pillar 140 and the light-emitting layer 130. The isolation pillar 140 has an opening 141 at the end of the first electrode 152 near the cathode layer 180. The end of the first electrode 152 near the cathode layer 180 is connected to the cathode layer 180 through the opening 141. The magnetoresistive sensitive layer 170 and the photodiode layer 151 are both disconnected from the cathode layer 180.

[0038] In this application, the first electrode 152 can be supplied with a constant common electrode DC signal. Therefore, by opening an opening 141 on the isolation pillar 140, the first electrode 152 can be connected to the cathode layer 180 through the opening 141, so that the first electrode 152 can obtain the same electrical signal as the cathode layer 180. In this way, there is no need to supply power to the first electrode 152 separately, but the original structure of the display panel 100 can be used to supply power to the first electrode 152, thereby simplifying the structure of the display panel 100 and reducing manufacturing costs. The magnetoresistive sensitive layer 170 and the photodiode layer 151 are both disconnected from the cathode layer 180, which can effectively prevent the magnetoresistive sensitive layer 170, the photodiode layer 151, and the first electrode 152 from simultaneously obtaining the electrical signal of the cathode layer 180, which would cause the detection function to fail to open or close normally.

[0039] In this embodiment, the magnetoresistive sensitive layer 170 is actually equivalent to the electrode at the other end of the photodiode layer 151 after being powered on. The magnetoresistive sensitive layer 170 can be powered by a separately configured power supply circuit. Therefore, the magnetoresistive sensitive layer 170 can be controlled separately, and the voltage can be a positive constant current (generally 10~20V). It does not share wiring with the in-plane drive of the display panel.

[0040] Magnetic field detection can be performed once every n frames (50~100 frames). The detection can be placed at any time within these n frames, i.e., before, after, or in the middle of a frame. The detection time is 5~10us, and the actual integer frame can be selected based on this time.

[0041] Since the first electrode 152 is supplied with an electrical signal from the cathode layer 180, the timing can be controlled by the display panel's driver chip so that the cathode layer 180 does not receive an electrical signal during the period when the magnetoresistive sensitive layer 170 is detecting the magnetic field. This prevents the first electrode 170 from receiving an electrical signal, thereby reducing interference to the magnetoresistive sensitive layer 170 during the magnetic field detection process.

[0042] Furthermore, the magnetoresistive sensitive layer 170, the first electrode 152, and the photodiode layer 151 are all perpendicular to the substrate 110, and the magnetoresistive sensitive layer 170 has the photodiode layer 151 and the first electrode 152 disposed on at least one side of the isolation pillar 140 in the width direction.

[0043] In this embodiment, the magnetoresistive sensitive layer 170, the first electrode 152, and the photodiode layer 151 are all disposed perpendicular to the substrate 110, so that the magnetoresistive sensitive layer 170 has a sufficiently large area to detect the magnetic field in the environment, thereby improving the detection accuracy of the magnetoresistive sensitive layer 170. In addition, the first electrode 152 has a sufficient area to allow obliquely irradiated light to pass through and be received by the photodiode layer 151, so that the photodiode layer 151 can obtain sufficient light to ensure the detection accuracy of the photodiode layer 151 for ambient light.

[0044] To ensure that the first detection component 150 can detect ambient light normally, this embodiment provides a photodiode layer 151 and a first electrode 152 on at least one side of the magnetoresistive sensitive layer 170. For example, when the photodiode layer 151 and the first electrode 152 are provided only on one side of the magnetoresistive sensitive layer 170, when light shines from the external environment onto the photodiode layer 151, it is easily collected by the photodiode layer 151, thus ensuring that the photodiode layer 151 can detect ambient light normally. At the same time, the overall thickness of the first detection component 150 and the second detection component 160 can be effectively reduced, reducing the space occupied by the first detection component 150 and the second detection component 160 in the isolation pillar 140, thereby allowing more light to enter the isolation pillar 140 and be detected by the photodiode layer 151, ensuring the accuracy of the detection by the photodiode layer 151.

[0045] Furthermore, since the photodiode layer 151 and the first electrode 152 are disposed on one side of the magnetoresistive sensitive layer 170, the photodiode layer 151 can detect light near its side, while the magnetoresistive sensitive layer 170 can detect magnetic fields near its side, so that the signals in the light detection and magnetic detection processes do not interfere with each other; the photodiode layer 151 can independently collect ambient light intensity, while the magnetoresistive sensitive layer 170 focuses on detecting magnetic field information, ensuring the independence and accuracy of their respective functions.

[0046] When photodiode layers 151 and first electrodes 152 are provided on both sides of the magnetoresistive sensitive layer 170, the photodiode layers 151 on both sides of the magnetoresistive sensitive layer 170 can collect light rays irradiated from different directions, which helps to improve the accuracy and stability of the detection results.

[0047] Figure 3 This is a schematic diagram of a second embodiment of the display panel of this application, as shown below. Figure 3 As shown, the magnetoresistive sensitive layer 170 is disposed at the bottom of the isolation pillar 140 and is parallel to the substrate 110; the photodiode layer 151 is disposed on the magnetoresistive sensitive layer 170 and the first electrode 152 is disposed on the photodiode layer 151; the magnetoresistive sensitive layer 170 is disposed on the same layer as the anode 120 and is disconnected from the anode 120.

[0048] The difference between this embodiment and the previous embodiment is that in this embodiment, the magnetoresistive sensitive layer 170 is disposed at the bottom of the isolation pillar 140 and parallel to the substrate 110. By displacing the magnetoresistive sensitive layer 170 and the anode 120 in the same layer but keeping them disconnected, a short circuit is avoided between the anode 120 and the magnetoresistive sensitive layer 170 when they are simultaneously energized.

[0049] In this embodiment, the activation or deactivation of the detection function can be controlled by the integrated control chip. The integrated control chip issues instructions to control whether to provide an electrical signal to the first electrode 152 or not. The power supply method for the first electrode 152 can be line power supply. The first electrode 152 can be provided with a separate power supply circuit to obtain the electrical signal. It can be that the wiring is laid on the backplane and there is a corresponding signal input. Power supply can be achieved through electrical contact of the wire. Providing an electrical signal to the first electrode 152 through a separate power supply circuit is a conventional method, which will not be described in detail in this application.

[0050] When ambient light intensity detection is not required, an electrical signal can be provided to the first electrode 152 instead of the first electrode 152. Since there is no electrical signal at the first electrode 152, there is no voltage across the photodiode layer 151, and therefore the photodiode layer 151 is in a closed state. At this time, the light detection function of the photodiode layer 151 is not effective. After the first electrical signal is received, the resistance of the magnetoresistive layer 170 changes due to the influence of the magnetic field. Therefore, the strength and direction of the magnetic field in the environment can be determined by the change in the resistance of the magnetoresistive layer. Based on the magnetoresistive effect, the magnetoresistive layer 170 detects the magnetic field information in the environment and determines the direction and magnitude of the magnetic field based on the change in its resistance, thereby achieving the detection of the ambient magnetic field. In this way, the magnetoresistive layer 170 can detect whether there is magnetic field interference in a certain direction in the external environment, thereby correcting the influence of the magnetic field on the light intensity of the photodiode layer 151's detection conversion efficiency and improving the detection accuracy of the photodiode layer 151.

[0051] When it is necessary to detect ambient light intensity, a second electrical signal is provided to the first electrode 152. Since both the first electrode 152 and the magnetoresistive sensitive layer 170 receive electrical signals, the magnetoresistive sensitive layer 170 acts as an electrode at the other end of the photodiode layer 151. This applies a voltage to both ends of the photodiode layer 151, turning it on. This allows the photodiode layer 151 to collect light and convert it into an electrical signal, thus enabling the collection of ambient light. The first and second electrical signals can refer to current or voltage signals.

[0052] The photodiode layer 151 is disposed on the magnetoresistive sensitive layer 170, and the first electrode 152 is disposed on the photodiode layer 151. This stacked design not only saves space but also simplifies the signal transmission path and reduces the possibility of signal interference.

[0053] Figure 4 This is a schematic diagram of a third embodiment of the display panel of this application, as shown. Figure 4 As shown, in at least two different isolation pillars 140, in one isolation pillar 140, the magnetoresistive sensitive layer 170, the first electrode 152, and the photodiode layer 151 are all perpendicular to the substrate 110; the magnetoresistive sensitive layer 170 has the photodiode layer 151 and the first electrode 152 disposed on at least one side of the isolation pillar 140 in the width direction; a cathode layer 180 is disposed above the isolation pillar 140 and the light-emitting layer 130, and an opening 141 is provided on the isolation pillar 140 corresponding to the end of the first electrode 152 near the cathode layer 180, and the end of the first electrode 152 near the cathode layer 180 is connected to the cathode layer 180 through the opening 141; the magnetoresistive sensitive layer 170 and the photodiode layer 151 are both disconnected from the cathode layer 180; Inside another isolation pillar 140, a magnetoresistive sensitive layer 170 is disposed at the bottom of the isolation pillar 140 and is parallel to the substrate 110; a photodiode layer 151 is disposed on the magnetoresistive sensitive layer 170, and a first electrode 152 is disposed on the photodiode layer 151; the magnetoresistive sensitive layer 170 is disposed on the same layer as the anode 120 and is disconnected from the anode 120.

[0054] The difference between this embodiment and the previous embodiment is that this application provides a magnetoresistive sensitive layer 170 perpendicular to the substrate 110 and a photodiode layer 151 parallel to the substrate 110 in two different isolation pillars 140. This allows for simultaneous detection of magnetic fields and light in different directions within the same display panel 100, and the two functions do not interfere with each other.

[0055] For example, when it is necessary to detect both ambient light intensity and magnetic field information simultaneously, the first electrode 152 can be controlled to open the photodiode layer 151 in one of the isolation pillars 140 and close the photodiode layer 151 in the other isolation pillar 140. This allows the photodiode layer 151 in one isolation pillar 140 to detect ambient light intensity, while the magnetoresistive sensitive layer 170 in the other isolation pillar 140 detects the magnetic field information in the environment. This allows both functions to be activated simultaneously without interference.

[0056] Furthermore, by placing the magnetoresistive sensitive layer 170 in different isolation pillars 140 in a manner perpendicular and parallel to the substrate 110, the magnetoresistive sensitive layer 170 can detect the magnetic field information in the environment from different directions and angles, thereby more accurately judging the influence of the magnetic field in the environment on the photodiode layer 151, which is beneficial to correcting the detection accuracy of the photodiode layer 151.

[0057] Furthermore, within the two isolation pillars 140, the thickness of the photodiode layer 151 parallel to the substrate 110 is greater than the thickness of the photodiode layer perpendicular to the substrate 110. The thicker photodiode layer 151 parallel to the substrate 110 increases its light absorption area and depth, thereby improving photosensitive performance; while the thinner photodiode layer perpendicular to the substrate 110 avoids occupying too much space within the isolation pillars 140, ensuring sufficient light can reach within the isolation pillars 140.

[0058] Figure 5 This is a schematic diagram of an embodiment of the display device of this application, as shown below. Figure 5 As shown in the illustration, this application also discloses a display device 10, including a rear shell 200. The display device 10 further includes the aforementioned display panel 100, which is disposed within the rear shell 200. The rear shell 200 protects the display panel 100 from damage caused by external forces and can, to a certain extent, prevent external moisture and dust from entering the interior of the display panel 100 and corroding the electronic components inside, thus extending the lifespan of the display panel 100.

[0059] In traditional display devices, integrating both magnetic field sensors and light sensors within the display panel inevitably affects the size of the opening for normal display, thus impacting the display's performance.

[0060] Based on the above problems, this application improves the display panel 100 in the display device 10 by setting a first detection component 150 and a second detection component 160 in the isolation pillar 140 between two adjacent light-emitting layers 130. Since the isolation pillar 140 itself is located between the two light-emitting layers 130, it will not block the opening 141 of the display panel 100 for normal display. Therefore, the first detection component 150 and the second detection component 160 set in the isolation pillar 140 will not affect the size of the opening 141 of the display panel 100 for normal display. At the same time, the first detection component 150 is used to detect the ambient light intensity, and the second detection component 160 is used to detect the magnetic field information in the external environment. Thus, the magnetic field detection function and the light detection function are integrated into the display panel 100 without affecting the size of the opening 141 of the display panel 100 for normal display, thereby improving the functionality of the display panel 100 and thus improving the functionality and quality of the display device 10.

[0061] It should be noted that the inventive concept of this application can form many embodiments, but due to the limited space of the application documents, they cannot all be listed. Therefore, without conflict, the embodiments described above or the technical features can be arbitrarily combined to form new embodiments. After the embodiments or technical features are combined, the original technical effect will be enhanced.

[0062] The above description, in conjunction with specific optional embodiments, provides a further detailed explanation of this application and should not be construed as limiting the specific implementation of this application to these descriptions. For those skilled in the art, various simple deductions or substitutions can be made without departing from the concept of this application, and all such modifications or substitutions should be considered within the scope of protection of this application.

Claims

1. A display panel, comprising a substrate, wherein a plurality of anodes are disposed at intervals above the substrate, a light-emitting layer is disposed above each anode, and an isolation pillar is disposed between two adjacent light-emitting layers, characterized in that, The isolation column is equipped with a first detection component and a second detection component. The first detection component is connected to the second detection component. The first detection component is used to detect ambient light intensity information, and the second detection component is used to detect magnetic field information.

2. The display panel according to claim 1, characterized in that, The first detection component includes a photodiode layer and a first electrode, and the second detection component includes a magnetoresistive sensitive layer. The first electrode is made of a light-transmitting material and faces the inner wall of the isolation column. The photodiode layer is located between the first electrode and the magnetoresistive sensitive layer, and the photodiode layer is connected to both the first electrode and the magnetoresistive sensitive layer. The photodiode layer is used to detect ambient light intensity information; The first electrode controls the photodiode layer to open or close; the magnetoresistive sensing layer is used to detect magnetic field information.

3. The display panel according to claim 2, characterized in that, When detecting magnetic field information, no electrical signal is provided to the first electrode, the photodiode layer is turned off, and a first electrical signal is provided to the magnetoresistive sensitive layer, which detects the magnetic field in the environment. When the ambient light intensity is detected, a second electrical signal is provided to the first electrode, which controls the photodiode layer to turn on, and the photodiode layer collects light from the environment.

4. The display panel according to claim 3, characterized in that, The magnetoresistive sensitive layer is made of at least one material selected from iron, cobalt, and nickel.

5. The display panel according to claim 4, characterized in that, The magnetoresistive sensitive layer, the first electrode, and the photodiode layer are all perpendicular to the substrate; the photodiode layer and the first electrode are disposed on at least one side of the magnetoresistive sensitive layer in the width direction of the isolation pillar.

6. The display panel according to claim 5, characterized in that, A cathode layer is provided above the isolation pillar and the light-emitting layer. The isolation pillar has an opening at the end of the first electrode near the cathode layer. The end of the first electrode near the cathode layer is connected to the cathode layer through the opening. The magnetoresistive sensitive layer and the photodiode layer are both disconnected from the cathode layer.

7. The display panel according to claim 4, characterized in that, The magnetoresistive sensitive layer is disposed at the bottom of the isolation pillar and parallel to the substrate; the photodiode layer is disposed on the magnetoresistive sensitive layer, and the first electrode is disposed on the photodiode layer; the magnetoresistive sensitive layer is disposed on the same layer as the anode and is disconnected from the anode.

8. The display panel according to claim 4, characterized in that, In at least two different isolation pillars, in one of the isolation pillars, the magnetoresistive sensitive layer, the first electrode, and the photodiode layer are all perpendicular to the substrate. The magnetoresistive sensitive layer has the photodiode layer and the first electrode disposed on at least one side of the isolation pillar in the width direction; a cathode layer is disposed above the isolation pillar and the light-emitting layer; the isolation pillar has an opening at the end of the first electrode near the cathode layer; the end of the first electrode near the cathode layer is connected to the cathode layer through the opening; the magnetoresistive sensitive layer and the photodiode layer are both disconnected from the cathode layer. In another isolation pillar, the magnetoresistive sensitive layer is disposed at the bottom of the isolation pillar and parallel to the substrate; the photodiode layer is disposed on the magnetoresistive sensitive layer, and the first electrode is disposed on the photodiode layer; the magnetoresistive sensitive layer is disposed in the same layer as the anode and is disconnected from the anode.

9. The display panel according to claim 7, characterized in that, Within the two isolation pillars, the thickness of the photodiode layer parallel to the substrate is greater than the thickness of the photodiode layer perpendicular to the substrate.

10. A display device, comprising a rear cover, characterized in that, The display device further includes a display panel according to any one of claims 1 to 9, the display panel being disposed within the rear housing.

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