Display device, display panel and manufacturing method thereof

Abstract

The present disclosure relates to a display device, a display panel and a manufacturing method thereof, and relates to the field of display technology. The display panel includes a display substrate, a pyroelectric device and a heat collecting layer, wherein the display substrate has a plurality of light-emitting units; the pyroelectric device is arranged on one side of the display substrate, and a pyroelectric device overlaps with a light-emitting unit at most in part; the heat collecting layer is arranged on the side of the pyroelectric device away from the display substrate, and includes a partition and a plurality of heat collecting units, the partition is provided with a plurality of light-transmitting holes, the heat collecting units are filled in each light-transmitting hole one by one, and are fitted with the side walls of the light-transmitting holes; a heat collecting unit overlaps with a pyroelectric device; the side walls of the light-transmitting holes expand in a direction away from the display substrate or are perpendicular to the display substrate; the heat collecting unit and the partition can at least transmit infrared light, and the refractive index of the partition to infrared light is less than the refractive index of the heat collecting unit to infrared light.

Description

Technical Field

[0001] The present disclosure relates to the field of display technology, and in particular, to a display device, a display panel, and a method for manufacturing a display panel. Background Art

[0002] Display panels have become an indispensable part of electronic devices such as mobile phones and computers. In order to realize intelligent control of electronic devices, for example, to realize floating gesture control, automatic screen off detection and other functions, it is necessary to set up some sensors for detecting parameters such as ambient temperature and ambient light. Among them, sensors for detecting ambient temperature are widely used, but if independent sensors are specially installed, it is necessary to design a complex installation structure, which is difficult to achieve thinness.

[0003] It should be noted that the information disclosed in the above background technology section is only used to enhance the understanding of the background of the present disclosure, and therefore may include information that does not constitute the prior art known to ordinary technicians in the field. Summary of the invention

[0004] The purpose of the present disclosure is to overcome the above-mentioned deficiencies of the prior art and to provide a display device, a display panel and a method for manufacturing a display panel, which can detect the ambient temperature by using the display panel and improve the sensitivity of the detection.

[0005] According to one aspect of the present disclosure, there is provided a display panel, comprising:

[0006] A display substrate having a plurality of light-emitting units;

[0007] A plurality of pyroelectric devices are disposed on one side of the display substrate, and one of the pyroelectric devices overlaps at most a portion of one of the light-emitting units;

[0008] The heat collecting layer is arranged on a side of the pyroelectric device away from the display substrate, and comprises a partition and a plurality of heat collecting units, the partition is provided with a plurality of light-transmitting holes, the heat collecting units are filled in each of the light-transmitting holes one by one, and are fitted with the side walls of the light-transmitting holes; one heat collecting unit overlaps with one pyroelectric device; the side walls of the light-transmitting holes expand in a direction away from the display substrate or are perpendicular to the display substrate; the heat collecting units and the partition are both at least able to transmit infrared light, and the refractive index of the partition for infrared light is smaller than the refractive index of the heat collecting units for infrared light.

[0009] In an exemplary embodiment of the present disclosure, the pyroelectric device includes a first sensing electrode, a pyroelectric sensing layer, and a second sensing electrode stacked in sequence in a direction away from the display substrate; the second sensing electrode is made of transparent conductive material.

[0010] In an exemplary embodiment of the present disclosure, the display panel further includes:

[0011] a filling layer, which is disposed on the same side of the display substrate as the pyroelectric devices and separates the pyroelectric devices; a surface of the filling layer away from the display substrate is flush with a surface of the second sensing electrode away from the display substrate;

[0012] The partition is arranged on a surface of the filling layer away from the display substrate.

[0013] In an exemplary embodiment of the present disclosure, the heat collecting unit is disposed on a surface of the second sensing electrode of the pyroelectric device that overlaps with the heat collecting unit and is away from the display substrate.

[0014] In an exemplary embodiment of the present disclosure, a material of the heat collection unit is different from a material of the second sensing electrode.

[0015] In an exemplary embodiment of the present disclosure, the display panel further includes:

[0016] A filling layer is disposed on the same side of the display substrate as the pyroelectric devices and separates the pyroelectric devices; a surface of the filling layer away from the display substrate is flush with a surface of the pyroelectric sensing layer away from the display substrate;

[0017] The partition is arranged on a surface of the filling layer away from the display substrate.

[0018] In an exemplary embodiment of the present disclosure, the heat collecting unit and the second sensing electrode of the pyroelectric device overlapping therewith are an integral structure.

[0019] In an exemplary embodiment of the present disclosure, the partition and the filling layer are made of the same material.

[0020] In an exemplary embodiment of the present disclosure, the display panel further includes:

[0021] An encapsulation layer, covering each of the light-emitting units;

[0022] A touch layer, disposed on a surface of the packaging layer away from the display substrate;

[0023] The pyroelectric device is arranged on a surface of the touch layer away from the display substrate.

[0024] In an exemplary embodiment of the present disclosure, the display panel further includes:

[0025] The filter layer is arranged on the surface of the heat collecting layer away from the display substrate, and includes a plurality of filter parts and limiting parts separating the filter parts; the filter parts overlap with the light emitting units one by one; the limiting parts overlap with the heat collecting units and can at least transmit infrared rays.

[0026] In an exemplary embodiment of the present disclosure, the display panel further includes:

[0027] The circular polarizing layer is arranged on the surface of the heat collecting layer away from the display substrate.

[0028] In an exemplary embodiment of the present disclosure, the display substrate includes:

[0029] Driver backplane;

[0030] A pixel definition layer, which is disposed on the same side of the driving backplane as the light-emitting units and separates the light-emitting units;

[0031] The orthographic projection of the pyroelectric device on the driving backplane is located within the orthographic projection of the pixel definition layer on the driving backplane.

[0032] According to one aspect of the present disclosure, there is provided a method for manufacturing a display panel, comprising:

[0033] forming a display substrate having a plurality of light-emitting units;

[0034] Forming a plurality of first sensing electrodes on one side of the display substrate;

[0035] forming a filling layer having a plurality of filling holes on a side of the display substrate where the first sensing electrodes are provided, wherein the filling holes correspond to each other and expose the first sensing electrodes;

[0036] stacking a pyroelectric sensing layer and a second sensing electrode in sequence in the filling hole;

[0037] A partition having a light-transmitting hole is formed on a surface of the filling layer away from the display substrate; the light-transmitting hole exposes the second sensing electrode; and a sidewall of the light-transmitting hole expands in a direction away from the display substrate or is perpendicular to the display substrate;

[0038] A heat collecting unit capable of transmitting at least infrared light is formed in the light-transmitting hole;

[0039] The light-transmitting hole and the partition are both capable of transmitting at least infrared light, and a refractive index of the partition for infrared light is smaller than a refractive index of the heat-collecting unit for infrared light.

[0040] According to one aspect of the present disclosure, there is provided a method for manufacturing a display panel, comprising:

[0041] forming a display substrate having a plurality of light-emitting units;

[0042] Forming a plurality of first sensing electrodes on one side of the display substrate;

[0043] forming a filling layer having a plurality of filling holes on a side of the display substrate where the first sensing electrodes are provided, wherein the filling holes correspond to each other and expose the first sensing electrodes;

[0044] Filling a pyroelectric induction layer in the filling hole, wherein a surface of the pyroelectric induction layer away from the display substrate is flush with a surface of the filling layer away from the display substrate;

[0045] A partition having light-transmitting holes is formed on a surface of the filling layer away from the display substrate; the light-transmitting holes expose the pyroelectric sensing layers one by one; and the sidewalls of the light-transmitting holes expand in a direction away from the display substrate or are perpendicular to the display substrate;

[0046] A second sensing electrode and a heat collecting unit forming an integrated structure in the light-transmitting hole;

[0047] The light-transmitting hole and the partition are both capable of transmitting at least infrared light, and a refractive index of the partition for infrared light is smaller than a refractive index of the heat-collecting unit for infrared light.

[0048] According to one aspect of the present disclosure, a display device is provided, comprising any one of the display panels described above.

[0049] The display device, display panel and manufacturing method thereof disclosed herein integrate pyroelectric devices inside the display panel without completely blocking the light-emitting unit, detect the ambient temperature without destroying the image display, and generate an electrical signal based on the temperature, thereby detecting the ambient temperature.

[0050] The heat collecting unit and the partition of the heat collecting layer can both transmit infrared light. However, since the refractive index of the heat collecting unit for infrared light is greater than that of the partition, at least part of the infrared light can be totally reflected at the interface where the heat collecting unit and the partition are bonded. Since the side walls of the light-transmitting hole are perpendicular to the display substrate or expand in the direction away from the display substrate, the totally reflected infrared light can irradiate the pyroelectric device, thereby reducing the diffusion of infrared light through the heat collecting unit and increasing the amount of infrared light received by the pyroelectric device. Even when the ambient temperature is close to the temperature of the pyroelectric device itself, an electrical signal can still be generated, thereby improving the detection sensitivity.

[0051] It is to be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present disclosure. BRIEF DESCRIPTION OF THE DRAWINGS

[0052] The accompanying drawings herein are incorporated into the specification and constitute a part of the specification, illustrate embodiments consistent with the present disclosure, and together with the specification are used to explain the principles of the present disclosure. Obviously, the accompanying drawings described below are only some embodiments of the present disclosure, and for ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without creative work.

[0053] Figure 1 It is a schematic diagram of a first embodiment of the display panel disclosed in the present invention.

[0054] Figure 2 It is a schematic diagram of a second embodiment of the display panel disclosed in the present invention.

[0055] Figure 3 It is a schematic diagram of a third embodiment of the display panel disclosed in the present invention.

[0056] Figure 4 It is a schematic diagram of a fourth embodiment of the display panel disclosed in the present invention.

[0057] Figure 5 It is a schematic diagram of a fifth embodiment of the display panel disclosed in the present invention.

[0058] Figure 6 It is a schematic diagram of filling holes in one embodiment of a display panel of the present disclosure.

[0059] Figure 7 It is a schematic diagram of a light-transmitting hole in one embodiment of the display panel disclosed in the present invention.

[0060] Figure 8 FIG. 4 is a schematic diagram of a light-transmitting hole in another embodiment of the display panel disclosed in the present invention.

[0061] Fig. 9 A partial top view of a display substrate in one embodiment of the display panel disclosed herein.

[0062] Fig.10 A partial top view of a filling layer in one embodiment of a display panel of the present disclosure.

[0063] Fig.11 A partial top view of a heat-collecting layer in an embodiment of a display panel disclosed herein.

[0064] Fig.12 A partial top view of an embodiment of the display panel disclosed herein. DETAILED DESCRIPTION

[0065] Example embodiments will now be described more fully with reference to the accompanying drawings. However, the example embodiments can be implemented in a variety of forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that the present disclosure will be comprehensive and complete and fully convey the concepts of the example embodiments to those skilled in the art. The same reference numerals in the figures represent the same or similar structures, and thus their detailed description will be omitted. In addition, the drawings are only schematic illustrations of the present disclosure and are not necessarily drawn to scale.

[0066] The terms "a", "an", "the", "said" and "at least one" are used to indicate the presence of one or more elements / components / etc.; the terms "including" and "having" are used to express an open-ended inclusive meaning and mean that additional elements / components / etc. may exist in addition to the listed elements / components / etc.; the terms "first", "second" and "third" etc. are used merely as labels and are not intended to limit the quantity of their objects.

[0067] Herein, the "overlap" of feature A and feature B means that the orthographic projection of feature A on the display substrate and the orthographic projection of feature B on the display substrate at least partially overlap. Meanwhile, the orthographic projection on the display substrate may refer to the orthographic projection on the substrate.

[0068] The present disclosure provides a display panel. Figure 1-Figure 4 , Figure 7 and Fig.12 As shown, the display panel may include a display substrate PNL, a pyroelectric device PIS and a heat collecting layer THL, wherein:

[0069] The display substrate PNL has a plurality of light emitting units LD. The number of the pyroelectric devices PIS is plural and they are arranged on one side of the display substrate PNL, and a pyroelectric device PIS at most partially overlaps with a light emitting unit.

[0070] The heat collecting layer THL is arranged on the side of the pyroelectric device PIS away from the display substrate PNL, and includes a partition SP and a plurality of heat collecting units TH. The partition SP is provided with a plurality of light-transmitting holes LH. The heat collecting units TH are filled in each light-transmitting hole LH one by one and are fitted with the side walls of the light-transmitting holes LH. A heat collecting unit TH overlaps with a pyroelectric device PIS. The side walls of the light-transmitting holes LH expand in a direction away from the display substrate PNL or are perpendicular to the display substrate PNL. The heat collecting unit TH and the partition SP can at least transmit infrared light, and the refractive index of the partition SP to infrared light is smaller than the refractive index of the heat collecting unit TH to infrared light.

[0071] The display panel disclosed in the present invention integrates the pyroelectric device PIS inside the display panel without completely blocking the light-emitting unit LD. It detects the ambient temperature without destroying the image display and generates an electrical signal according to the temperature, thereby detecting the ambient temperature.

[0072] The heat collecting unit TH and the partition SP of the heat collecting layer THL can both transmit infrared light. However, since the refractive index of the heat collecting unit TH for infrared light is greater than that of the partition SP, at least part of the infrared light can be totally reflected at the interface where the heat collecting unit TH and the partition SP are bonded. Since the side wall of the light-transmitting hole LH is perpendicular to the display substrate PNL or expands in a direction away from the display substrate PNL, the totally reflected infrared light can irradiate the pyroelectric device PIS, thereby reducing the diffusion of infrared light through the heat collecting unit TH and increasing the amount of infrared light received by the pyroelectric device PIS. Even when the ambient temperature is close to the temperature of the pyroelectric device PIS itself, an electrical signal can still be generated, thereby improving the detection sensitivity.

[0073] The basic structure of the display panel disclosed in the present invention is exemplarily described below.

[0074] like Figure 1-Figure 4 As shown, the display substrate PNL has a plurality of light-emitting units LD, each of which can emit light independently to display an image. The display substrate PNL can be an organic electroluminescent display substrate, and its light-emitting unit LD can be an OLED (organic light-emitting diode), or a Micro LED (micrometer light-emitting diode) and a Mini LED (sub-millimeter light-emitting diode), or a light-emitting device such as a QLED (quantum dot diode). Of course, the display substrate PNL can be a liquid crystal display substrate.

[0075] The following description is made by taking the display substrate PNL as an organic electroluminescent display substrate as an example:

[0076] like Figure 1-Figure 4 As shown, the display substrate PNL may include a driving backplane BP, and the light emitting unit LD may be arranged on one side of the driving backplane BP. The driving backplane BP has a driving circuit that can drive the light emitting unit LD to emit light to display an image, wherein:

[0077] The driving backplane BP may include a substrate and a circuit layer located on one side of the substrate. The substrate may be a flat plate structure, and its material may be a hard material such as glass, or a soft material such as polyimide.

[0078] The circuit layer may be provided on one side of the substrate, and the circuit layer may include a driving circuit, and the driving circuit may drive the light-emitting unit LD to emit light. For example, the display panel may be divided into at least a display area AA and a peripheral area WA located outside the display area AA, and accordingly, the driving circuit may include a pixel circuit located in the display area AA and a peripheral circuit located in the peripheral area WA, wherein the pixel circuit may be a 3T1C, 6T1C, 7T1C, 7T2C or other pixel circuit, as long as it can drive the light-emitting unit LD to emit light, and its structure is not specifically limited here. The number of pixel circuits may be the same as the number of light-emitting units LD, and they are connected to each light-emitting unit LD in a one-to-one correspondence, so as to control each light-emitting unit LD to emit light respectively. Among them, nTmC indicates that a pixel circuit includes n transistors (represented by the letter "T") and m capacitors (represented by the letter "C"). Of course, the same pixel circuit may also be connected to multiple light-emitting units LD, and drive multiple light-emitting units LD to emit light at the same time, and no special limitation is made here.

[0079] The peripheral circuit is connected to the pixel circuit and is used to input a driving signal to the pixel circuit so as to control the light emitting unit LD to emit light. The peripheral circuit may include a gate driving circuit and a light emitting control circuit, and of course, may also include other circuits. The specific structure of the peripheral circuit is not particularly limited here.

[0080] The above-mentioned circuit layer may include multiple thin film transistors and capacitors, wherein the thin film transistor may be a top-gate or bottom-gate thin film transistor, and each thin film transistor may include an active layer and a gate. Taking the top-gate thin film transistor as an example, the circuit layer may include a semiconductor layer, a first gate insulation layer, a first gate layer, a second gate insulation layer, a second gate layer, an interlayer dielectric layer, a first source and drain layer, a passivation layer, a first planarization layer, a second source and drain layer, and a second planarization layer, which are stacked in sequence along a direction away from the substrate. The specific pattern of each film layer depends on the specific composition of the driving circuit and is not specifically limited here.

[0081] like Figure 1-Figure 4 As shown, the light-emitting unit LD is arranged on one side of the driving backplane BP, and the orthographic projection of each light-emitting unit LD on the circuit layer can be located in the display area AA. Each light-emitting unit LD can include a first electrode ANO, a second electrode CAT, and a light-emitting functional layer EL located between the first electrode ANO and the second electrode CAT. By applying an electrical signal to the first electrode ANO and the second electrode CAT, the light-emitting functional layer EL can be excited to emit light.

[0082] like Figure 1-Figure 4 and Fig. 9As shown, in order to define the position of the light-emitting unit LD and prevent crosstalk between adjacent light-emitting units LD, the pixel definition layer PDL can be used to separate the light-emitting units LD. Specifically, the pixel definition layer PDL and the light-emitting unit LD can be arranged on the same side of the driving backplane BP. For example, the two can be arranged on the surface of the second flat layer away from the substrate. The first electrodes ANO of each light-emitting unit LD are distributed at intervals, and the pixel definition layer PDL is provided with openings that expose each first electrode ANO, that is, one opening exposes one first electrode ANO. The pixel definition layer PDL can be used to define the range of each light-emitting unit LD. The range of an opening is the range of one light-emitting unit LD. The boundary of the orthographic projection of the light-emitting unit LD on the driving backplane BP is the boundary of the orthographic projection of the opening on the driving backplane BP.

[0083] The light-emitting functional layer EL is at least partially located in the opening and is stacked with the first electrode ANO. The light-emitting functional layer EL may include a hole injection layer, a hole transport layer, a light-emitting material layer, an electron transport layer, and an electron injection layer stacked in sequence in a direction away from the driving backplane BP. Of course, other structures may also be used as long as they can cooperate with the first electrode ANO and the second electrode CAT to emit light.

[0084] The second electrode CAT may cover the light-emitting functional layer EL, and the second electrode CAT may be a continuous whole-layer structure, so that each light-emitting unit LD may share the same second electrode CAT. The second electrode CAT may be recessed into the opening at a position corresponding to the opening. At the same time, the second electrode CAT may be the cathode of the light-emitting unit LD, and it may adopt a light-transmitting structure, so that the light-emitting unit LD may emit light in a direction away from the driving backplane BP. For example, the material of the second electrode CAT may be metal magnesium, silver or its alloy, etc., which can be conductive and light-transmitting at a certain thickness. At the same time, the first electrode ANO may be a light-opaque structure, so that the light-emitting unit LD is a top-emitting structure.

[0085] In some embodiments of the present disclosure, Figure 1-Figure 4 As shown, each light-emitting unit LD can emit light independently, and the light-emitting colors of different light-emitting units LD can be different. Specifically, at least the light-emitting material layer in the light-emitting functional layer EL can be divided into a plurality of light-emitting parts that are arranged in each opening in a one-to-one correspondence, and other film layers of the light-emitting functional layer EL can also be arranged in an array or in a whole layer. The light-emitting functional layer EL corresponding to each light-emitting part can emit light independently, and the light-emitting colors of different light-emitting units LD can be different, so that color display can be directly realized.

[0086] In some embodiments of the present disclosure, Figure 1-Figure 4 As shown, the light-emitting functional layer EL can also cover the pixel definition layer PDL and each first electrode ANO at the same time, that is, each light-emitting unit LD can share the same light-emitting functional layer EL. At this time, the light-emitting colors of each light-emitting unit LD are the same layer.

[0087] like Figure 1-Figure 4 As shown, the display panel may further include an encapsulation layer TFE, which may cover each light emitting unit LD and is used to protect the light emitting layer OL and prevent external water and oxygen from corroding the light emitting unit LD.

[0088] In some embodiments of the present disclosure, the encapsulation layer TFE may be encapsulated in a thin film manner, which may include a first inorganic layer, an organic layer, and a second inorganic layer, wherein: the first inorganic layer may cover each light-emitting unit LD. The organic layer may be disposed on the surface of the first inorganic layer away from the driving backplane BP, and the boundary of the organic layer may be limited to the inner side of the boundary of the first inorganic layer by a blocking dam located in the peripheral area WA, and the boundary of the orthographic projection of the organic layer on the driving backplane BP may be located in the peripheral area WA, ensuring that the organic layer can cover each light-emitting unit LD. The second inorganic layer may cover the organic layer and the first inorganic layer not covered by the organic layer, and the intrusion of water and oxygen may be blocked by the second inorganic layer, and planarization may be achieved by a flexible organic layer.

[0089] In some embodiments of the present disclosure, Figure 1-Figure 4 As shown, the display panel may also include a touch layer TPS, which may be arranged on the side of the display encapsulation layer TFE away from the driving backplane BP, and is used to sense touch operations. Taking the touch layer TPS adopting a mutual capacitance touch structure as an example, the touch layer TPS may include a plurality of first touch electrodes and a plurality of second touch electrodes, each of which may be spaced apart along the row direction, and a first touch electrode may include a plurality of first electrode blocks spaced apart along the column direction and a transfer bridge connecting two adjacent first electrode blocks; each of the second touch electrodes may be spaced apart along the column direction, and a second touch electrode may include a plurality of second electrode blocks connected in series along the row direction; a transfer bridge crosses a second touch electrode and is insulated. One of the first touch electrode and the second touch electrode may be used as a transmitting electrode, and the other as a receiving electrode, and both are connected to the peripheral touch driving circuit.

[0090] The first electrode block and the second touch electrode are both located in the touch electrode layer, that is, the first electrode block and the second touch electrode are arranged in the same layer, so that they can be formed simultaneously by the same process. The transfer bridge can be located in the transfer layer, which can be located between the touch electrode layer and the encapsulation layer TFE. In addition, the touch layer TPS can also include a buffer layer and an isolation layer, wherein:

[0091] The buffer layer may be disposed on the surface of the encapsulation layer TFE away from the driving backplane, and the transfer layer may be disposed on the surface of the buffer layer away from the driving backplane BP, and include a plurality of transfer bridges. The transfer layer may be made of metal or other conductive materials. The isolation layer may cover the transfer layer. The touch electrode layer TMB may be disposed on the surface of the isolation layer away from the driving backplane, and include the first electrode block and the second touch electrode mentioned above.

[0092] Of course, the touch layer TPS can also take a self-capacitive touch structure as an example, which may include a touch electrode layer, and the touch electrode layer may include a plurality of electrode blocks distributed in an array, each electrode block can be connected to a peripheral touch drive circuit through an independent wiring. The specific structure of the self-capacitive touch structure is not specifically limited here, as long as the touch function can be realized.

[0093] In order to improve the light transmittance and reduce the shielding of the light-emitting unit LD by the touch electrode layer, the touch electrode layer may be a mesh structure formed by connecting a plurality of channel lines, and the mesh structure has a plurality of mesh holes.

[0094] The touch layer TPS may further include a protection layer, which may cover the touch electrode layer. The protection layer may protect the touch electrode layer and achieve planarization, so as to form a film layer above the touch layer TPS.

[0095] In order to reduce the reflection of ambient light, the following implementations may be adopted:

[0096] like Figure 1 and Figure 3 As shown, in some embodiments of the present disclosure, the display panel also includes a circular polarizing layer POL, which can be arranged on the side of the touch layer TPS away from the display substrate PNL, and is used to reduce the ambient light from the outside reflected by the first electrode ANO and the second electrode CAT. The circular polarizing layer POL can be a circular polarizer, and its specific structure is not particularly limited here.

[0097] like Figure 2 and Figure 4 As shown, in some other embodiments of the present disclosure, different light-emitting units LD can emit different lights. The display panel may also include a filter layer CFL, which may be disposed on the surface of the touch layer TPS away from the display substrate PNL, and include a plurality of filter parts CF and a limiting part BM separating the filter parts CF; the filter parts CF overlap with the light-emitting units LD in a one-to-one correspondence, that is, the filter parts CF correspond to the openings of the pixel definition layer PDL in a one-to-one correspondence, so that the light emitted by the light-emitting unit LD can reach the corresponding filter part CF. The limiting part BM overlaps with the pixel definition layer PDL. A filter part CF can transmit monochromatic light, which can reduce part of the ambient light and part of the light reflected inside the display panel, thereby reducing reflection. The color of the filter part CF is the same as the color of the corresponding light-emitting unit LD, which can ensure that the display panel emits light normally. Therefore, the filter layer CFL can play a role in reducing reflection, and the use of a thicker circular polarizer can be avoided, which is beneficial to reducing the thickness of the display panel.

[0098] In other embodiments of the present disclosure, the light-emitting functional layer EL is a whole layer structure, and the light-emitting colors of each light-emitting unit LD are the same. The display panel may further include the above-mentioned filter layer CFL, and the light color may be limited by each filter portion CF, so that color display is achieved when the light-emitting colors of each light-emitting unit LD are the same. At the same time, the filter layer CFL may still play a role in reducing reflection.

[0099] like Figure 1-Figure 4 As shown, in some embodiments of the present disclosure, the display panel may further include a cover plate CG, which may be a transparent material such as glass or acrylic, and may be disposed on a side of the filter layer CFL away from the display substrate PNL, or on a side of the circular polarizing layer POL away from the display substrate PNL. For example, the cover plate CG may be attached to a surface of the filter layer CFL away from the display substrate PNL, or a surface of the circular polarizing layer POL away from the display substrate PNL. The film layer covered by the cover plate CG may be protected.

[0100] Next, based on the display panel architecture described above, the pyroelectric device PIS and the heat collecting layer THL are described in detail:

[0101] like Figure 1-Figure 4 , Fig.11 and Fig.12 As shown, the pyroelectric device PIS is disposed on one side of the display substrate PNL. For example, the pyroelectric device PIS can be disposed on the surface of the touch layer TPS away from the display substrate PNL. At the same time, a pyroelectric device PIS overlaps with a light-emitting unit LD at most to prevent the pyroelectric device PIS from completely blocking the light-emitting unit LD. Of course, in order to prevent blocking to the greatest extent, the orthographic projection of the pyroelectric device PIS on the driving backplane BP can be located outside the opening of the pixel definition layer PDL and inside the pixel definition layer PDL.

[0102] The pyroelectric device PIS can receive heat in the environment and generate corresponding electrical signals, thereby realizing the detection of ambient temperature. The heat is mainly received by receiving infrared light in the environment.

[0103] like Figure 1-Figure 4As shown, in some embodiments of the present disclosure, the pyroelectric device PIS may include a first sensing electrode P1, a pyroelectric sensing layer PIL, and a second sensing electrode P2 stacked in sequence in a direction away from the display substrate PNL, wherein the pyroelectric sensing layer PIL includes a pyroelectric material, and when the temperature thereof changes, the spontaneous polarization changes accordingly, and the free charges on the surfaces of the first sensing electrode P1 and the second sensing electrode P2 cannot neutralize the change in bound charges in time, and there are charges on the surface of the pyroelectric sensing layer PIL that are not neutralized in time in a short period of time, thereby generating a voltage change, and the change in the voltage signal is collected by the first sensing electrode P1 and the second sensing electrode P2 to obtain a signal that can reflect the temperature. The working principle of the pyroelectric device PIS will not be described in detail here.

[0104] The first sensing electrodes P1 and the second sensing electrodes P2 can both be made of transparent conductive materials, such as indium tin oxide (ITO).

[0105] Since the pyroelectric device PIS is not a whole layer structure, in order to set other structures above the pyroelectric device PIS to avoid the upper structure being suspended, the display panel may further include a filling layer FL. The filling layer FL and the pyroelectric device PIS may be arranged on the same side of the display substrate PNL, for example, both are arranged on the surface of the touch layer TPS away from the display substrate PNL. At the same time, the filling layer FL can fill the space between the pyroelectric devices PIS and separate the pyroelectric devices PIS. The material of the filling layer FL may be the same as that of the pixel definition layer, or of course, it may be different.

[0106] like Figure 1 , Figure 2 , Figure 7 and Fig.10 As shown, in some embodiments of the present disclosure, the surface of the filling layer FL away from the display substrate PNL may be flush with the surface of the second sensing electrode P2 away from the display substrate PNL, that is, the thickness of the filling layer FL may be the same as the thickness of the pyroelectric device PIS, that is, the filling layer FL does not cover the surface of the pyroelectric device PIS away from the display substrate PNL, that is, the filling layer FL is provided with a plurality of filling holes FH, and a pyroelectric device PIS is provided in each filling hole FH.

[0107] like Figure 3 , Figure 4 , Figure 8 and Fig.10 In some embodiments of the present disclosure, the surface of the filling layer FL away from the display substrate PNL may be flush with the surface of the pyroelectric sensing layer PIL away from the display substrate PNL. That is, the filling layer FL is provided with a plurality of filling holes FH, each of which is provided with a pyroelectric device PIS, but the thickness of the filling layer FL is equal to the total thickness of the pyroelectric sensing layer PIL and the first sensing electrode P1, and the second sensing electrode P2 may be located outside the filling hole FH.

[0108] like Fig.12 As shown, the boundary of the filling hole FH is the same as the boundary of the pyroelectric device PIS, but is staggered with the light-emitting unit LD to avoid blocking the light-emitting unit LD. For example, the light-emitting unit LD and the pyroelectric device PIS are distributed in an orthographic projection array on the display substrate PNL, and a row of light-emitting units LD can be located in the same row as a row of pyroelectric devices PIS, and are alternately distributed along the row direction.

[0109] like Figure 5 As shown, in some embodiments of the present disclosure, the filling layer FL may cover the pyroelectric devices PIS and fill the space between the pyroelectric devices PIS.

[0110] At least one of the first sensing electrode P1 and the second sensing electrode P2 of each pyroelectric device PIS is a plurality of independent units distributed in an array, while the other can be distributed in an array or in a whole layer structure. For example: the first sensing electrode P1 of each pyroelectric device PIS is distributed in an array, and the second sensing electrode P2 is a whole layer structure, so that each pyroelectric device PIS shares the second sensing electrode P2. Of course, the first sensing electrode P1 and the second sensing electrode P2 can both be distributed in an array.

[0111] like Figure 1-Figure 4 , Figure 7 , Fig.11 and Fig.12 As shown, the heat collecting layer THL is arranged on the side of the pyroelectric device PIS away from the display substrate PNL. The heat collecting layer THL may include a partition SP and a plurality of heat collecting units TH, the partition SP is provided with a plurality of light-transmitting holes LH, a light-transmitting hole LH overlaps with a light-emitting unit LD, that is, a light-transmitting hole LH is arranged one-to-one with an opening of the pixel definition layer PDL.

[0112] The heat collecting units TH are filled in each light transmission hole LH one by one, and are attached to the side wall of the light transmission hole LH; a heat collecting unit TH overlaps with a pyroelectric device PIS, that is, the orthographic projection of a heat collecting unit TH on the display substrate PNL and the orthographic projection of a pyroelectric device PIS on the display substrate PNL at least partially overlap. At the same time, the side wall of the light transmission hole LH can expand in the direction away from the display substrate PNL, for example, the cross section of the side wall of the light transmission hole LH perpendicular to the display substrate PNL can be an inverted trapezoid that expands away from the display substrate PNL. Alternatively, the side wall of the light transmission hole LH can also be perpendicular to the display substrate PNL. As long as the side wall of the light transmission hole LH does not shrink in the direction away from the display substrate PNL.

[0113] Both the heat collecting unit TH and the partition SP can transmit infrared light, and the refractive index of the partition SP for infrared light is smaller than that of the heat collecting unit TH, so that at least a part of the infrared light can be totally reflected at the interface where the heat collecting unit TH and the partition SP contact, that is, the side wall of the light-transmitting hole LH, and the totally reflected infrared light irradiates the pyroelectric device PIS, so that the temperature sensed by the pyroelectric device PIS increases, and accordingly, the output electrical signal thereof increases, so that the temperature can still be detected when the ambient temperature is low and unchanged.

[0114] Of course, the heat collecting unit TH and the partition SP may not only transmit infrared light, but also transmit visible light or other light at the same time.

[0115] The light filter layer CFL and the circular polarizing layer POL mentioned above may be disposed on a surface of the heat collecting layer THL away from the display substrate PNL.

[0116] The material of the heat collecting unit TH and the partition SP can be an insulating material or a conductive material such as metal, as long as it can transmit infrared light and achieve the total reflection of infrared light as described above, and there is no special limitation on the material. If the material of the heat collecting unit TH is a conductive material, it can be made of the same material as the second sensing electrode P2 of the pyroelectric device PIS, so that the two can be formed in one piece. For example, the second sensing electrode P2 and the heat collecting unit TH can both be made of transparent conductive materials such as indium tin oxide, and the two can be formed in one piece, so that the second sensing electrode P2 and the heat collecting unit TH can be reused.

[0117] The display panel of the present disclosure is described below through multiple embodiments:

[0118] like Figure 1 As shown, in the first embodiment of the present disclosure, the surface of the filling layer FL away from the display substrate PNL is flush with the surface of the second sensing electrode P2 of the pyroelectric device PIS away from the display substrate PNL. The material of the filling layer FL can be the same as that of the pixel definition layer PDL. The thickness of the filling layer FL is the same as that of the pyroelectric device PIS.

[0119] The pyroelectric device PIS is disposed on the surface of the touch layer TPS away from the display substrate PNL, and the first sensing electrodes P1 and the second sensing electrodes P2 are both arranged in an array. The heat collecting unit TH is made of a different material from the second sensing electrode P2 of the pyroelectric device PIS, and a heat collecting unit TH is disposed on the surface of a second sensing electrode P2 away from the display substrate PNL; the partition SP is disposed on the surface of the filling layer FL away from the display substrate PNL. The thickness of the partition SP and the heat collecting unit TH can be the same.

[0120] In this embodiment, the filter layer CFL may not be provided, but a circular polarizing layer POL may be provided. The circular polarizing layer POL is provided on a surface of the heat collecting layer THL away from the display substrate PNL.

[0121] The cover plate CG is attached to the surface of the circular polarizing layer POL away from the display substrate PNL.

[0122] like Figure 2 As shown, in the second embodiment of the present disclosure, the surface of the filling layer FL away from the display substrate PNL is flush with the surface of the second sensing electrode P2 of the pyroelectric device PIS away from the display substrate PNL. The material of the filling layer FL can be the same as that of the pixel definition layer PDL. The thickness of the filling layer FL is the same as that of the pyroelectric device PIS.

[0123] The pyroelectric device PIS is disposed on the surface of the touch layer TPS away from the display substrate PNL, and the first sensing electrodes P1 and the second sensing electrodes P2 are both arranged in an array. The heat collecting unit TH is made of a different material from the second sensing electrode P2 of the pyroelectric device PIS, and a heat collecting unit TH is disposed on the surface of a second sensing electrode P2 away from the display substrate PNL; the partition SP is disposed on the surface of the filling layer FL away from the display substrate PNL. The thickness of the partition SP and the heat collecting unit TH can be the same.

[0124] In this embodiment, the circular polarizing layer POL may not be provided, but a filter layer CFL may be provided. The filter layer CFL may be provided on the surface of the heat collecting layer THL away from the display substrate PNL, and a filter portion CF may overlap with a heat collecting unit TH, and a limiting portion BM may overlap with a partition portion SP.

[0125] The cover plate CG is attached to the surface of the circular polarizing layer POL away from the display substrate PNL.

[0126] like Figure 3 As shown, in the third embodiment of the present disclosure, the surface of the filling layer FL away from the display substrate PNL is flush with the surface of the pyroelectric sensing layer PIL of the pyroelectric device PIS away from the display substrate PNL. The first sensing electrodes P1 and the second sensing electrodes P2 are both distributed in an array. The material of the filling layer FL can be the same as that of the pixel definition layer PDL. The thickness of the filling layer FL is less than the thickness of the pyroelectric device PIS, for example, the thickness of the filling layer FL is equal to the sum of the thicknesses of the first sensing electrodes P1 and the pyroelectric sensing layer PIL.

[0127] The pyroelectric device PIS is disposed on the surface of the touch layer TPS away from the display substrate PNL. The heat collecting unit TH is made of the same material as the second sensing electrode P2 of the pyroelectric device PIS and is integrally formed. Both can be made of transparent conductive materials such as indium tin oxide. The partition SP is disposed on the surface of the filling layer FL away from the display substrate PNL. The thickness of the partition SP and the heat collecting unit TH can be the same, and correspondingly, the same as the thickness of the second sensing electrode P2.

[0128] In this embodiment, the filter layer CFL may not be provided, but a circular polarizing layer POL may be provided. The circular polarizing layer POL is provided on a surface of the heat collecting layer THL away from the display substrate PNL.

[0129] The cover plate CG is attached to the surface of the circular polarizing layer POL away from the display substrate PNL.

[0130] like Figure 4 As shown, in the fourth embodiment of the present disclosure, the surface of the filling layer FL away from the display substrate PNL is flush with the surface of the pyroelectric sensing layer PIL of the pyroelectric device PIS away from the display substrate PNL. The material of the filling layer FL can be the same as the material of the pixel definition layer PDL. The thickness of the filling layer FL is less than the thickness of the pyroelectric device PIS.

[0131] The pyroelectric device PIS is disposed on the surface of the touch layer TPS away from the display substrate PNL, and the first sensing electrode P1 and the second sensing electrode P2 are both distributed in an array. The heat collecting unit TH is made of the same material as the second sensing electrode P2 of the pyroelectric device PIS and is integrally formed. Both can use transparent conductive materials such as indium tin oxide. The partition SP is disposed on the surface of the filling layer FL away from the display substrate PNL. The thickness of the partition SP and the heat collecting unit TH can be the same, and correspondingly, the same as the thickness of the second sensing electrode P2.

[0132] In this embodiment, the circular polarizing layer POL may not be provided, but a filter layer CFL may be provided. The filter layer CFL may be provided on the surface of the heat collecting layer THL away from the display substrate PNL, and a filter portion CF may overlap with a heat collecting unit TH, and a limiting portion BM may overlap with a partition portion SP.

[0133] The cover plate CG is attached to the surface of the circular polarizing layer POL away from the display substrate PNL.

[0134] like Figure 5 As shown, in the fifth embodiment of the present disclosure, the filling layer FL covers the second sensing electrode P2 of each pyroelectric device PIS and fills the space outside the pyroelectric device PIS to achieve planarization. The material of the filling layer FL can be the same as that of the pixel definition layer PDL. The thickness of the filling layer FL is greater than the thickness of the pyroelectric device PIS.

[0135] The pyroelectric device PIS is disposed on the surface of the touch layer TPS away from the display substrate PNL, and the first sensing electrodes P1 and the second sensing electrodes P2 are both distributed in an array. The heat collecting unit TH and the second sensing electrode P2 of the pyroelectric device PIS can be made of the same material or different materials, and the heat collecting unit TH and the partition SP are both disposed on the surface of the filling layer FL away from the display substrate PNL. The thickness of the partition SP and the heat collecting unit TH can be the same.

[0136] In this embodiment, a circular polarizing layer POL or a filter layer CFL may be provided to reduce the reflection of ambient light. The specific method may refer to the above embodiments and will not be described in detail here.

[0137] The cover plate CG is attached to the surface of the circular polarizing layer POL away from the display substrate PNL.

[0138] It should be noted that, although the above embodiments selectively adopt the circular polarizing layer POL and the filter layer CFL, these embodiments are only exemplary and do not mean that there is a contradiction between the circular polarizing layer POL and the filter layer CFL in principle. Those skilled in the art can know that the circular polarizing layer POL and the filter layer CFL can exist on the same display panel at the same time.

[0139] The above description only describes the case where the display substrate uses a self-luminous light-emitting unit such as an organic light-emitting diode. For a liquid crystal display substrate, a pyroelectric device and a heat-collecting layer can also be used. For example, the display substrate includes a backlight source and an array substrate, a liquid crystal layer and a color filter layer stacked in sequence. The color filter layer has multiple filter parts. The backlight source can be an edge-entry structure or a direct-down structure, which is not specifically limited here. The pyroelectric device can be arranged on the side of the color filter layer away from the array substrate, and the heat-collecting layer can be arranged on the side of the pyroelectric device away from the array substrate. The structure and relationship of the pyroelectric device and the heat-collecting layer can refer to the above implementation method and will not be described in detail here.

[0140] The display panel of the present disclosure may also include an induction processing circuit, which may be connected to each pyroelectric device and used to determine the temperature detected by each pyroelectric device according to the electrical signal generated by the pyroelectric device. Since the heat-collecting layer collects part of the infrared light through total reflection, the temperature of the pyroelectric device is increased, thereby improving the sensitivity.

[0141] In order to reduce the error caused by the temperature rise caused by the convergence of infrared light, the temperature detected by the heat-collecting layer and the pyroelectric device can be compared with the ambient temperature in advance, and a compensation value or compensation relationship can be determined based on the difference between the two. When the display panel is working, the actual ambient temperature can be calculated based on the above compensation value and compensation relationship and the detected temperature value, thereby improving the accuracy of the detection result.

[0142] The sensing processing circuit may be located in the peripheral area, and may be a dedicated chip, or may be integrated with a chip for driving touch control and display, which is not particularly limited here.

[0143] Based on some embodiments of the present invention, the present disclosure provides a method for manufacturing a display panel, the structure of the display panel may be the first, second or other embodiments described above, in which the surface of the filling layer FL away from the display substrate PNL is flush with the surface of the second sensing electrode P2 away from the display substrate PNL, and its specific structure is not described in detail here. The manufacturing method may include steps S110 to S160, wherein:

[0144] Step S110 , forming a display substrate having a plurality of light-emitting units.

[0145] Step S120: forming a plurality of first sensing electrodes on one side of the display substrate.

[0146] Step S130 : forming a filling layer having a plurality of filling holes on a side of the display substrate where the first sensing electrodes are provided, wherein the filling holes correspond to each other and expose the first sensing electrodes.

[0147] Step S140 , stacking a pyroelectric sensing layer and a second sensing electrode in sequence in the filling hole.

[0148] Step S150, forming a partition having a light-transmitting hole on a surface of the filling layer away from the display substrate; the light-transmitting hole exposes the second sensing electrode; and the sidewall of the light-transmitting hole expands in a direction away from the display substrate or is perpendicular to the display substrate.

[0149] Step S160: forming a heat collecting unit capable of transmitting at least infrared light in the light-transmitting hole.

[0150] The light-transmitting hole and the partition are both capable of transmitting at least infrared light, and a refractive index of the partition for infrared light is smaller than a refractive index of the heat-collecting unit for infrared light.

[0151] The structure of the display substrate PNL may refer to the display substrate PNL mentioned above, and the process thereof is not particularly limited here.

[0152] like Figure 6 and Figure 7 As shown, the pyroelectric device PIS can be formed in multiple steps, that is, first forming the first sensing electrode P1, then covering the first sensing electrode P1 with a filling layer FL and patterning the filling layer FL to obtain a filling hole FH exposing the first sensing electrode P1, and then sequentially stacking the pyroelectric sensing layer PIL and the second sensing electrode P2 in the filling hole FH, the position of the pyroelectric device PIS is limited by the filling layer FL, and the first sensing electrode P1 and the second sensing electrode P2 are both distributed in an array.

[0153] Based on some embodiments of the present invention, the present invention provides a method for manufacturing a display panel, wherein the structure of the display panel may be the third, fourth, or other embodiments described above, wherein the surface of the filling layer FL away from the display substrate PNL is flush with the surface of the pyroelectric sensing layer PIL away from the display substrate PNL, and its specific structure is not described in detail herein. The manufacturing method may include steps S110 to S160, wherein:

[0154] S110, forming a display substrate having a plurality of light-emitting units;

[0155] S120, forming a plurality of first sensing electrodes on one side of the display substrate;

[0156] S130, forming a filling layer having a plurality of filling holes on a side of the display substrate provided with the first sensing electrodes, wherein the filling holes correspond to each other and expose the first sensing electrodes;

[0157] S140, filling a pyroelectric induction layer in the filling hole, wherein a surface of the pyroelectric induction layer away from the display substrate is flush with a surface of the filling layer away from the display substrate;

[0158] S150, forming a partition having light-transmitting holes on a surface of the filling layer away from the display substrate; the light-transmitting holes expose the pyroelectric sensing layers one by one; and the sidewalls of the light-transmitting holes expand in a direction away from the display substrate or are perpendicular to the display substrate;

[0159] S160, forming a second sensing electrode and a heat collecting unit in an integrated structure in the light-transmitting hole;

[0160] The light-transmitting hole and the partition are both capable of transmitting at least infrared light, and a refractive index of the partition for infrared light is smaller than a refractive index of the heat-collecting unit for infrared light.

[0161] The structure of the display substrate PNL may refer to the display substrate PNL mentioned above, and the process thereof is not particularly limited here.

[0162] like Figure 6 and Figure 8As shown, the pyroelectric device PIS can be formed in multiple steps, that is, first forming the first sensing electrode P1, then covering the first sensing electrode P1 with a filling layer FL and patterning the filling layer FL to obtain a filling hole FH exposing the first sensing electrode P1, then forming a pyroelectric sensing layer PIL in the filling hole FH, and limiting the position of the pyroelectric device PIS by the filling layer FL. Then forming a partition SP with a light-transmitting hole LH, and then forming an integrated second sensing electrode P2 and a heat collecting unit TH in the light-transmitting hole LH, the shape of the second sensing electrode P2 and the heat collecting unit TH can be limited by the side wall of the light-transmitting hole LH, at this time, the first sensing electrode P1 and the second sensing electrode P2 are both distributed in an array.

[0163] It should be noted that, although the steps of the manufacturing method in the present disclosure are described in a specific order in the drawings, this does not require or imply that the steps must be performed in this specific order, or that all the steps shown must be performed to achieve the desired results. Additionally or alternatively, some steps may be omitted, multiple steps may be combined into one step, and / or one step may be decomposed into multiple steps, etc.

[0164] The present disclosure also provides a display device, which may include a display panel of any of the above embodiments. The display panel is a display panel of any of the above embodiments, and its specific structure and beneficial effects can be referred to the embodiments of the display panel above, which will not be repeated here. The display device of the present disclosure can be an electronic device with a display function such as a mobile phone, a tablet computer, a television, etc., which will not be listed one by one here.

[0165] Those skilled in the art will readily appreciate other embodiments of the present disclosure after considering the specification and practicing the invention disclosed herein. This application is intended to cover any modification, use or adaptation of the present disclosure, which follows the general principles of the present disclosure and includes common knowledge or customary techniques in the art that are not disclosed in the present disclosure. The specification and examples are intended to be exemplary only, and the true scope and spirit of the present disclosure are indicated by the appended claims.

Claims

1. A display panel, characterized in that: include: A display substrate having a plurality of light-emitting units; A plurality of pyroelectric devices are disposed on one side of the display substrate, and one pyroelectric device overlaps at most a portion of one of the light-emitting units; the pyroelectric device comprises a first sensing electrode, a pyroelectric sensing layer, and a second sensing electrode stacked in sequence in a direction away from the display substrate; The heat collecting layer is arranged on a side of the pyroelectric device away from the display substrate, and comprises a partition and a plurality of heat collecting units, the partition is provided with a plurality of light-transmitting holes, the heat collecting units are filled in each of the light-transmitting holes one by one, and are fitted with the side walls of the light-transmitting holes; one heat collecting unit overlaps with one pyroelectric device; the side walls of the light-transmitting holes expand in a direction away from the display substrate or are perpendicular to the display substrate; the heat collecting units and the partition are both at least able to transmit infrared light, and the refractive index of the partition for infrared light is smaller than the refractive index of the heat collecting units for infrared light.

2. The display panel according to claim 1, characterized in that: The second sensing electrodes are all made of transparent conductive material.

3. The display panel according to claim 2, characterized in that: The display panel further includes: a filling layer, which is disposed on the same side of the display substrate as the pyroelectric devices and separates the pyroelectric devices; a surface of the filling layer away from the display substrate is flush with a surface of the second sensing electrode away from the display substrate; The partition is arranged on a surface of the filling layer away from the display substrate.

4. The display panel according to claim 3, characterized in that: The heat collecting unit is arranged on a surface of the second sensing electrode of the pyroelectric device which overlaps with the heat collecting unit and is away from the display substrate.

5. The display panel according to claim 4, characterized in that: The material of the heat collection unit is different from that of the second sensing electrode.

6. The display panel according to claim 2, characterized in that: The display panel further includes: A filling layer is disposed on the same side of the display substrate as the pyroelectric devices and separates the pyroelectric devices; a surface of the filling layer away from the display substrate is flush with a surface of the pyroelectric sensing layer away from the display substrate; The partition is arranged on a surface of the filling layer away from the display substrate.

7. The display panel according to claim 6, characterized in that: The heat collecting unit and the second induction electrode of the pyroelectric device overlapping with the heat collecting unit are an integrated structure.

8. The display panel according to claim 6, characterized in that: The partition and the filling layer are made of the same material.

9. The display panel according to any one of claims 1 to 8, characterized in that: The display panel further includes: An encapsulation layer, covering each of the light-emitting units; A touch layer, disposed on a surface of the packaging layer away from the display substrate; The pyroelectric device is arranged on a surface of the touch layer away from the display substrate.

10. The display panel according to any one of claims 1 to 8, characterized in that: The display panel further includes: The filter layer is arranged on the surface of the heat collecting layer away from the display substrate, and includes a plurality of filter parts and limiting parts separating the filter parts; the filter parts overlap with the light emitting units one by one; the limiting parts overlap with the heat collecting units and can at least transmit infrared rays.

11. The display panel according to any one of claims 1 to 8, characterized in that: The display panel further includes: The circular polarizing layer is arranged on the surface of the heat collecting layer away from the display substrate.

12. The display panel according to any one of claims 1 to 8, characterized in that: The display substrate comprises: Driver backplane; A pixel definition layer, which is disposed on the same side of the driving backplane as the light-emitting units and separates the light-emitting units; The orthographic projection of the pyroelectric device on the driving backplane is located within the orthographic projection of the pixel definition layer on the driving backplane.

13. A method for manufacturing a display panel, characterized in that: include: forming a display substrate having a plurality of light-emitting units; Forming a plurality of first sensing electrodes on one side of the display substrate; forming a filling layer having a plurality of filling holes on a side of the display substrate where the first sensing electrodes are provided, wherein the filling holes correspond to each other and expose the first sensing electrodes; stacking a pyroelectric sensing layer and a second sensing electrode in sequence in the filling hole; A partition having a light-transmitting hole is formed on a surface of the filling layer away from the display substrate; the light-transmitting hole exposes a second sensing electrode; and a sidewall of the light-transmitting hole expands in a direction away from the display substrate or is perpendicular to the display substrate; A heat collecting unit capable of transmitting at least infrared light is formed in the light-transmitting hole; The light-transmitting hole and the partition are both capable of transmitting at least infrared light, and a refractive index of the partition for infrared light is smaller than a refractive index of the heat-collecting unit for infrared light.

14. A method for manufacturing a display panel, characterized in that: include: forming a display substrate having a plurality of light-emitting units; Forming a plurality of first sensing electrodes on one side of the display substrate; forming a filling layer having a plurality of filling holes on a side of the display substrate where the first sensing electrodes are provided, wherein the filling holes correspond to each other and expose the first sensing electrodes; Filling a pyroelectric induction layer in the filling hole, wherein a surface of the pyroelectric induction layer away from the display substrate is flush with a surface of the filling layer away from the display substrate; A partition having light-transmitting holes is formed on a surface of the filling layer away from the display substrate; the light-transmitting holes expose the pyroelectric sensing layers one by one; and the sidewalls of the light-transmitting holes expand in a direction away from the display substrate or are perpendicular to the display substrate; A second sensing electrode and a heat collecting unit forming an integrated structure in the light-transmitting hole; The light-transmitting hole and the partition are both capable of transmitting at least infrared light, and a refractive index of the partition for infrared light is smaller than a refractive index of the heat-collecting unit for infrared light.

15. A display device, characterized in that: A display panel comprising any one of claims 1 to 12.

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