CN217655882U - Light-emitting panel and phototherapy device - Google Patents

Abstract

The utility model discloses a luminescent panel and phototherapy device. The light emitting panel includes: a substrate; the array-arranged light-emitting structure comprises at least one array-arranged light-emitting structure and at least one array-arranged temperature sensor, wherein the light-emitting structure and the temperature sensor are positioned on the surface of a substrate; the light emitting structure and the temperature sensor have no overlap in an orthographic projection of the substrate. The embodiment of the utility model provides a technical scheme is in order to reduce the thickness of luminescent panel and phototherapy device, has realized a luminescent panel and phototherapy device that detects to the temperature of the regional temperature of phototherapy receptor and luminescent panel to the degree of consistency that detects is carried out to the temperature of the regional temperature of phototherapy receptor and luminescent panel has been improved.

Description

Light-emitting panel and phototherapy device

Technical Field

The embodiment of the utility model provides a relate to semiconductor technology field, especially relate to a luminescent panel and phototherapy device.

Background

With the development of light-emitting panel technology, light-emitting panels are applied more and more widely in the field of phototherapy.

The light-emitting panel is applied to the phototherapy field, and the light-emitting structure of the light-emitting panel is in the light-emitting process, and the area irradiated by the light-emitting structure is the phototherapy receptor area. During the phototherapy process, as the luminous time of the luminous panel is continuously increased, the temperature of the corresponding phototherapy receptor area is increased. If the temperature in the phototherapy receptor area is too high, the effect of phototherapy will be adversely affected. And if the light-emitting panel has too long light-emitting time, the temperature of the light-emitting panel can be increased along with the increase of the light-emitting panel, so that potential safety hazards are brought.

In addition, due to the pursuit of small-sized light-emitting panels and phototherapy devices, there is a need for a light-emitting panel and a phototherapy device that have a reduced thickness and can detect the temperature of the phototherapy receptor region and the temperature of the light-emitting panel during phototherapy.

SUMMERY OF THE UTILITY MODEL

In view of this, the present invention provides a light-emitting panel and a phototherapy device, so as to reduce the thickness of the light-emitting panel and the phototherapy device, and to realize a light-emitting panel and a phototherapy device for detecting the temperature of the phototherapy receptor region and the temperature of the light-emitting panel.

The embodiment of the utility model provides a luminescent panel, include: a substrate;

the light emitting structure and the temperature sensor are positioned on the surface of the substrate;

the light emitting structure and the temperature sensor have no overlap in an orthographic projection of the substrate.

Optionally, the temperature sensors and the light emitting structures are arranged in a one-to-one correspondence manner, and the temperature sensors are located on one side of the light emitting structures.

Optionally, the temperature sensor includes a positive electrode, a negative electrode, and a conductive temperature sensing layer;

the anode and the cathode are positioned on the surface of the substrate, and the orthographic projections of the anode and the cathode on the substrate are not overlapped;

the conductive temperature sensing layer covers the positive electrode and the negative electrode;

the resistance of the conductive temperature sensing layer is linearly changed along with the change of the environmental temperature in the preset range.

Optionally, the conductive temperature sensing layer includes a graphene temperature sensing layer.

Optionally, the light emitting structures include a stack of a graphene anode, an organic light emitting layer, and a common cathode, and at least one of the light emitting structures shares the common cathode;

the graphene anode and the conductive temperature sensing layer are positioned on the same layer;

the luminescent panel further comprises an insulating layer, the insulating layer is positioned between the common cathode and the conductive temperature sensing layer of the at least one temperature sensor, and the insulating layer covers the surface and the side face, far away from the substrate, of the temperature sensor;

the insulating layer is provided with a hollow structure, and the hollow structure exposes the light-emitting structure.

Optionally, the organic light emitting layer covers the graphene anode, and the area of the organic light emitting layer is larger than that of the graphene anode; the common cathode covers the organic light emitting layer.

Optionally, the light-emitting panel further comprises a connecting line, the connecting line is located on the surface of the substrate, and the connecting line comprises at least one positive connecting line and at least one negative connecting line;

the positive connecting wires are arranged in a one-to-one correspondence mode and electrically connected with the positive poles of the temperature sensors, and the negative connecting wires are arranged in a one-to-one correspondence mode and electrically connected with the negative poles of the temperature sensors.

Optionally, the connection line further includes at least one positive bus and at least one negative bus;

at least two positive connecting wires are connected with the positive bus;

and at least two negative connecting wires are connected with the negative bus.

Optionally, the light-emitting device further includes a light-blocking structure disposed around the light-emitting structure, and configured to block light emitted by the light-emitting structure from exiting from a direction perpendicular to the thickness direction of the substrate.

The embodiment of the utility model also provides a phototherapy device, which comprises the luminous panel arbitrarily arranged in the technical proposal;

still include transparent tie coat, transparent tie coat is located the play plain noodles of luminescent panel.

The embodiment of the utility model provides an in the luminescent panel, the light emitting structure that at least one array was arranged and the temperature sensor that at least one array was arranged are located the surface of substrate, compare the scheme that light emitting structure and temperature sensor stromatolite set up at the substrate surface, have reduced the thickness of luminescent panel. When the phototherapy paster is attached to the phototherapy receptor area, the temperature sensor can be used for detecting the temperature of the phototherapy receptor area. And the temperature sensor is positioned in the light-emitting panel, and can also have the effect of detecting the temperature of the light-emitting panel. To sum up, the embodiment of the utility model provides a light-emitting panel can realize detecting the temperature of the regional temperature of phototherapy acceptor and light-emitting panel through temperature sensor, and then reduces the potential safety hazard in the light-emitting panel use to because light-emitting structure and temperature sensor are located the surface of substrate, compare light-emitting structure and the scheme of temperature sensor stromatolite setting at the substrate surface, reduced the thickness of light-emitting panel board. And the temperature sensor that at least one array was arranged is located the surface of substrate, and along with temperature sensor's quantity increase and the regional increase of temperature sensor at the substrate surface cover, temperature sensor carries out the degree of consistency that detects to the temperature of phototherapy receptor region and luminescent panel higher, and then can avoid phototherapy receptor region and luminescent panel local overheat appearing and can not in time be detected and the potential safety hazard that causes.

Drawings

Fig. 1 is a top view of a light-emitting panel according to an embodiment of the present invention;

fig. 2A is a top view of another light-emitting panel provided by an embodiment of the present invention;

FIG. 2B is a cross-sectional view taken along line A1-A2 of FIG. 2A;

FIG. 3 is a flow chart of a method of making the light emitting panel of FIGS. 2A and 2B;

FIG. 4A is a top view corresponding to step 110 in the method of manufacturing a light-emitting panel in FIG. 3;

FIG. 4B is a cross-sectional view of FIG. 4A;

FIG. 5A is a top view corresponding to step 120 in the method of manufacturing a light-emitting panel in FIG. 3;

FIG. 5B is a cross-sectional view taken along line A1-A2 of FIG. 5A;

FIG. 6A is a top view corresponding to step 130 in the method of manufacturing the light emitting panel of FIG. 3;

FIG. 6B is a cross-sectional view taken along line A1-A2 of FIG. 6A;

FIG. 7A is a top view corresponding to step 140 in the method of making the light emitting panel of FIG. 3;

FIG. 7B is a cross-sectional view taken along line A1-A2 of FIG. 7A;

FIG. 8A is a top view corresponding to step 150 in the method of making a light emitting panel of FIG. 3;

FIG. 8B is a cross-sectional view taken along line A1-A2 of FIG. 8A;

FIG. 9 is another cross-sectional view taken along line A1-A2 of FIG. 2A;

fig. 10A is a top view of another light-emitting panel provided by an embodiment of the present invention;

FIG. 10B is a cross-sectional view taken along line A1-A2 of FIG. 10A;

fig. 11 is a schematic structural view of a phototherapy device according to an embodiment of the present invention.

001-substrate, 002-insulating layer, 10-light-emitting structure, 20-temperature sensor, 21-anode, 22-cathode, M1-region of light-emitting structure, M2-region of temperature sensor, 23-conductive temperature sensing layer, 11-graphene anode, 11 a-anode connecting line, 002 a-hollow structure, 12-organic light-emitting layer, 13-common cathode, 30-connecting line, anode connecting line 31, cathode connecting line 32, anode bus 33, cathode bus 34, light-blocking structure 40, 003-packaging layer, 100-light-emitting panel and 200-transparent bonding layer.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures associated with the present invention are shown in the drawings, not all of them.

The embodiment of the utility model provides a luminescent panel. Referring to fig. 1, the light emitting panel includes: a substrate 001; at least one light emitting structure 10 arranged in an array and at least one temperature sensor 20 arranged in an array, wherein the light emitting structure 10 and the temperature sensor 20 are positioned on the surface of the substrate 001; the light emitting structure 10 and the temperature sensor 20 do not overlap in the orthographic projection of the substrate 001.

Illustratively, 16 light emitting structures 10 are shown in fig. 1, and the 16 light emitting structures 10 are arranged in an array of 4 rows and 4 columns. In fig. 1, 16 temperature sensors 20 are shown, and the 16 temperature sensors 20 are arranged in an array of 4 rows and 4 columns. Since the light emitting structure 10 and the temperature sensor 20 are both located on the surface of the substrate 001, the thickness of the light emitting panel is reduced compared to a case where the light emitting structure 10 and the temperature sensor 20 are stacked on the surface of the substrate 001.

It should be noted that the temperature sensor 20 can detect the change of the ambient temperature, and the ambient temperature around the temperature sensor 20 can be changed by the temperature change of the phototherapy receptor area and the temperature change caused by the light emission of the light emitting structure 10 in the light emitting panel, so the temperature sensor 20 can be used to detect the temperature of the phototherapy receptor area and the temperature of the light emitting panel.

The embodiment of the utility model provides an in the luminescent panel, the surface that light emitting structure 10 and at least one array arranged 20 of at least one array arranged are located substrate 001 compares the scheme that light emitting structure 10 and 20 stromatolites of temperature sensor set up on substrate 001 surface, has reduced the thickness of light emitting panel. When the light-emitting panel is applied to the phototherapy field, for example, to a phototherapy patch, the area irradiated by the light-emitting structure 10 of the light-emitting panel is a phototherapy receptor area, and when the phototherapy patch is attached to the phototherapy receptor area, the temperature sensor 20 may be used to detect the temperature of the phototherapy receptor area. The temperature sensor 20 is located inside the light-emitting panel, and can also detect the temperature of the light-emitting panel. To sum up, the embodiment of the utility model provides a light-emitting panel can realize detecting the regional temperature of phototherapy acceptor and the temperature of light-emitting panel through temperature sensor 20, and then reduces the potential safety hazard in the light-emitting panel use to because light-emitting structure 10 and temperature sensor 20 are located the surface of substrate 001, compare the scheme that light-emitting structure 10 and temperature sensor 20 stromatolite set up at substrate 001 surface, reduced the thickness of light-emitting panel plate. And at least one array arrangement's temperature sensor 20 is located the surface of substrate 001, and along with temperature sensor 20's quantity increase and temperature sensor 20 the regional increase of substrate 001 surface covering, temperature sensor 20 detects the degree of consistency that is higher to the temperature of phototherapy receptor region and the temperature of luminescent panel, and then can avoid phototherapy receptor region and luminescent panel local overheat appearing and can not in time be detected the potential safety hazard that causes.

Alternatively, referring to fig. 1, 2A and 2B, the temperature sensors 20 and the light emitting structures 10 are disposed in one-to-one correspondence, and the temperature sensors 20 are located at one side of the light emitting structures 10.

Specifically, temperature sensor 20 and light-emitting structure 10 one-to-one set up, and temperature sensor 20 is located one side of light-emitting structure 10, and temperature sensor 20 can realize detecting the regional temperature of phototherapy acceptor that each light-emitting structure 10 shines, also can realize detecting the temperature of each light-emitting structure 10, and then has improved the accuracy that the light-emitting panel detected the regional temperature of phototherapy acceptor and the temperature of light-emitting panel when shining phototherapy acceptor region. And temperature sensor 20 and light-emitting structure 10 one-to-one set up, have improved temperature sensor 20 and have carried out the degree of consistency that detects to the temperature of phototherapy receptor region and luminescent panel, and then can avoid phototherapy receptor region and luminescent panel local overheated just can not in time be detected and the potential safety hazard that causes.

For convenience of explaining the internal structures of the light emitting structure 10 and the temperature sensor 20, the embodiment of the present invention provides a method for manufacturing the light emitting panel with respect to the light emitting panel shown in fig. 2A and 2B. Referring to fig. 3, the method of manufacturing the light emitting panel includes the steps of:

step 110, providing a substrate.

Referring to fig. 4A and 4B, a substrate 001 is provided. The substrate 001 can be a PET film.

And 120, forming a positive electrode and a negative electrode of the temperature sensor on the surface of the substrate, wherein the positive electrode and the negative electrode are positioned on the surface of the substrate, and the orthographic projections of the positive electrode and the negative electrode on the substrate are not overlapped.

Referring to fig. 5A and 5B, a cathode 21 and an anode 22 of the temperature sensor 20 are formed on a surface of a substrate 001. The anode 21 and the cathode 22 are positioned on the surface of the substrate 001, and the orthographic projections of the anode 21 and the cathode 22 on the substrate 001 are not overlapped. When the positive electrode 21 and the negative electrode 22 of the temperature sensor 20 are formed, the region M1 where the light-emitting structure 10 is located is reserved on one side of the temperature sensor 20 in a one-to-one correspondence.

And 130, forming a conductive temperature sensing layer of the temperature sensor and a graphene anode of the light-emitting structure, wherein the conductive temperature sensing layer covers the positive electrode and the negative electrode.

Referring to fig. 6A and 6B, a mask may be formed on the surface of the substrate 001 by an evaporation process, wherein the mask exposes the region M1 of the light emitting structure 10 and the region of the temperature sensor 20, and then a conductive temperature sensing layer 23 may be formed at the region M1 of the light emitting structure 10 and over the positive electrode 21 and the negative electrode 22 of the temperature sensor 20 by a screen printing process. The conductive temperature sensing layer 23 at the region M1 of the light emitting structure 10 serves as the graphene anode 11 of the light emitting structure 10.

Step 140, forming an organic light emitting layer on the graphene anode of the light emitting structure.

Referring to fig. 7A and 7B, an organic light emitting layer 12 is formed on the graphene anode 11 of the light emitting structure 10 through an evaporation process.

Step 150, forming an insulating layer, wherein the insulating layer covers the surface and the side surface of the temperature sensor far away from the substrate; the insulating layer is provided with a hollow structure, and the hollow structure exposes the light-emitting structure.

Referring to fig. 8A and 8B, an insulating layer 002 is formed, the insulating layer 002 covering the surface and the side face of the temperature sensor 20 away from the substrate 001. The insulating layer 002 is provided with a hollow-out structure 002a, and the hollow-out structure 002a exposes the graphene anode 11 of the light-emitting structure 10. The region M2 in fig. 8A and 8B is a region where the temperature sensor 20 is located.

Step 160, forming a common cathode, wherein at least one light emitting structure shares the common cathode.

Referring to fig. 2A and 2B, the common cathode 13 may be formed through an evaporation process or a sputtering process, and the common cathode 13 is shared by at least one light emitting structure 10 of the light emitting panel. Since the insulating layer 002 covers the surface and the side of the temperature sensor 20 away from the substrate 001, the common cathode 13 does not form a short-circuit connection with the conductive temperature sensing layer 23 of the temperature sensor 20. The region M1 is a region where the light emitting structure 10 is located, and the region M2 is a region where the temperature sensor 20 is located. Illustratively, the common cathode 13 may be made of metal aluminum with stable physical and chemical properties and good conductivity.

Alternatively, referring to fig. 2A and 2B, the temperature sensor 20 includes a positive electrode 21, a negative electrode 22, and a conductive temperature sensing layer 23; the anode 21 and the cathode 22 are positioned on the surface of the substrate 001, and the orthographic projections of the anode 21 and the cathode 22 on the substrate 001 do not overlap; the conductive temperature sensing layer 23 covers the anode 21 and the cathode 22; the resistance of the conductive temperature sensing layer 23 changes linearly with the change of the environmental temperature within the preset range of the conductive temperature sensing layer 23.

Specifically, the cathode 21 and the anode 22 are located on the surface of the substrate 001, and the thickness of the light emitting panel is further reduced compared to the case where the cathode 21 and the anode 22 are stacked in the temperature sensor 20. Since the resistance of the conductive temperature sensing layer 23 changes linearly with the change of the ambient temperature within the preset range, when the positive electrode 21 and the negative electrode 22 apply a power signal, the temperature of the phototherapy receptor region and the luminous panel can be determined by the joule heat generated by the conductive temperature sensing layer 23 or directly by the resistance of the conductive temperature sensing layer 23. To sum up, the embodiment of the utility model provides a light emitting panel can be along with the change of the ambient temperature who predetermines the within range through temperature sensor 20's electrically conductive temperature sensing layer 23, and the characteristic that electrically conductive temperature sensing layer's resistance is linear variation realizes detecting the regional temperature of phototherapy acceptor and the temperature of light emitting panel to because light-emitting structure 10 and temperature sensor 20 are located the surface of substrate 001, and anodal 21 and negative pole 22 are located the surface of substrate 001, have reduced the thickness of light emitting panel.

It should be noted that, the temperature sensors 20 and the light-emitting structures 10 are arranged in a one-to-one correspondence, the temperature sensors 20 are located at one side of the light-emitting structures 10, and the temperature of each light-emitting structure 10 and the corresponding phototherapy receptor area can be determined by detecting joule heat or resistance change of each temperature sensor 20; by detecting joule heating or resistance changes of the plurality of temperature sensors 20, the temperature of the plurality of light emitting structures 10 and the corresponding plurality of phototherapy receptor areas corresponding to the plurality of temperature sensors 20 may be determined.

Optionally, the conductive temperature sensing layer 23 comprises a graphene temperature sensing layer.

Specifically, the conductive temperature sensing layer 23 includes a graphene temperature sensing layer, the graphene temperature sensing layer is within a preset temperature range of 300K-500K, and the resistance value of the graphene temperature sensing layer is linearly reduced along with the change of temperature. By applying power signals to the positive and negative electrodes 21, 22, the temperature of the phototherapy receptor area and the luminescent panel can be determined by the generated joule heating of the graphene temperature sensing layer or directly by the resistance of the conductive temperature sensing layer 23. Illustratively, the resistance value of the graphene temperature sensing layer is greater than or equal to 0.2 x 10^5 Ω and less than or equal to 5 x 10^5 Ω when the ambient temperature is 300K, and the temperature coefficient of resistance is greater than or equal to 150 Ω/K and less than or equal to 350 Ω/K.

Alternatively, referring to fig. 2A and 2B, the light emitting structure 10 includes a stack of a graphene anode 11, an organic light emitting layer 12, and a common cathode 13, at least one light emitting structure 10 sharing the common cathode 13; the graphene anode 11 and the conductive temperature sensing layer 23 are located on the same layer; the light-emitting panel further comprises an insulating layer 002, the insulating layer 002 being located between the common cathode 13 and the electrically conductive temperature sensing layer 23 of the at least one temperature sensor 20, and the insulating layer 002 covering the surface and the side of the temperature sensor 20 facing away from the substrate 001; the insulating layer 002 is provided with a hollow structure, and the hollow structure exposes the light-emitting structure 10. Referring to fig. 8A and 8B, fig. 8A and 8B show the hollow-out structures 002a provided in the insulating layer 002, and the hollow-out structures 002a expose the light-emitting structures 10.

Specifically, the anode of the light-emitting structure 10 is the graphene anode 11, and the graphene anode 11 and the conductive temperature sensing layer 23 are located on the same layer, as shown in fig. 6A and 6B, the preparation of the graphene anode 11 is completed while the conductive temperature sensing layer 23 is prepared, so that the preparation flow of the light-emitting panel is simplified, and the preparation cost of the light-emitting panel is reduced. Since the insulating layer 002 covers the surface and the side of the temperature sensor 20 far from the substrate 001, the common cathode 13 does not form a short circuit connection with the conductive temperature sensing layer 23 of the temperature sensor 20.

Optionally, referring to fig. 2A and 2B, the organic light emitting layer 12 covers the graphene anode 11, and the area of the organic light emitting layer 12 is larger than that of the graphene anode 11; the common cathode 13 covers the organic light emitting layer 12.

Specifically, since the area of the organic light emitting layer 12 is larger than that of the graphene anode 11, the common cathode 13 does not contact with the graphene anode 11 when covering the organic light emitting layer 12, and thus the problem of short circuit between the common cathode 13 and the graphene anode 11 can be avoided. In the actual manufacturing process, the side surfaces of the graphene anode 11, the organic light emitting layer 12, and the common cathode 13 are not perpendicular to the plane of the substrate 001, but have a gradient in an acute angle range with respect to the plane of the substrate 001. Optionally, when the insulating layer 002 in fig. 8A and 8B exposes the anode connecting line 11a of the graphene anode 11, the common cathode 13 is provided with an opening structure, and an orthographic projection of the opening structure on the substrate 001 covers an orthographic projection of the anode connecting line 11a of the graphene anode 11 on the substrate 001, so that the common cathode 13 is not in contact with the anode connecting line 11a of the graphene anode 11, and the problem of short circuit between the common cathode 13 and the graphene anode 11 can be avoided.

Optionally, referring to fig. 5A-7B, the light emitting panel further includes a connection line 30, the connection line 30 is located on the surface of the substrate, and the connection line 30 includes at least one positive connection line 31 and at least one negative connection line 32; the positive connecting lines 31 are disposed in one-to-one correspondence with the positive electrodes 21 of the temperature sensors 20 and electrically connected thereto, and the negative connecting lines 32 are disposed in one-to-one correspondence with the negative electrodes 22 of the temperature sensors 20 and electrically connected thereto. It should be noted that the connection line 30 may be prepared by a sputtering or evaporation process before the insulating layer 002 is formed. Illustratively, the connection line 30 may be made of at least one of Pt, al, ag, ni, ti, and Au, which have stable physicochemical properties and good conductivity.

Specifically, positive connecting wire 31 and negative connecting wire 32 are used for leading out temperature sensor 20's signal of telecommunication, temperature sensor 20 and light-emitting structure 10 one-to-one set up, and temperature sensor 20 is located one side of light-emitting structure 10, positive connecting wire 31 sets up and is connected with the anodal 21 one-to-one of temperature sensor 20, negative connecting wire 32 sets up and is connected with the negative pole 22 one-to-one of temperature sensor 20, temperature sensor 20 can realize detecting the regional temperature of phototherapy receptor that each light-emitting structure 10 shines, also can realize detecting the temperature of each light-emitting structure 10, and then improved the luminescent panel when shining phototherapy receptor region, the degree of accuracy that detects the regional temperature of phototherapy receptor and the temperature of luminescent panel.

Optionally, referring to fig. 5A-7B, the connection line 30 further includes at least one positive bus bar 33 and at least one negative bus bar 34; at least two positive connecting wires 31 are connected with a positive bus 33; at least two negative connection lines 32 are connected to a negative bus bar 34.

Specifically, at least two positive electrode connecting wires 31 obtain power supply signals through a common positive electrode bus 33, and at least two negative electrode connecting wires 32 obtain power supply signals through a common negative electrode bus 34, so that the wiring number of the power supply signal wires can be reduced, and the size of the plane where the substrate 001 of the display panel is located can be further reduced.

Optionally, the connection line 30 further includes an anode connection line 11a and a cathode connection line on the surface of the substrate 001, the anode connection line 11a is electrically connected to the graphene anode 11, and the cathode connection line is electrically connected to the common cathode 13.

Optionally, referring to fig. 2A and fig. 9, the light-blocking structure 40 is further included, and the light-blocking structure 40 is disposed around the light-emitting structure and is used for preventing light emitted by the light-emitting structure from exiting from a direction perpendicular to the thickness direction of the substrate 001.

Specifically, the light blocking structure 40 may be a light absorbing layer or a total reflection layer, and light emitted from the light emitting structure of the light blocking structure 40 is emitted from the thickness direction perpendicular to the substrate 001, so that the light emitting rate of the light emitting structure 10 of the light emitting panel can be increased, and the efficiency of irradiating the phototherapy receptor region by the light emitting structure 10 is increased.

Optionally, referring to fig. 10A and 10B, an encapsulation layer 003 is further included, and the encapsulation layer 003 is used to cover the surface of the common cathode 13 away from the substrate 001. An exemplary encapsulation layer 003 can be a PET film. The encapsulating layer 003 exposes the power supply signal connection pad of the temperature sensor 20 and the power supply signal connection pad of the light-emitting structure 10. It should be noted that the power supply signal connection pads of the temperature sensor 20 and the power supply signal connection pads of the light emitting structure 10 are not shown in the figure. The power signal connection pad of the temperature sensor 20 is electrically connected to the positive connection line 31 and the negative connection line 32 of the connection lines 30. The power signal connection pad of the light emitting structure 10 is electrically connected with the anode connection line 11a and the cathode connection line of the light emitting structure 10.

The utility model also provides a phototherapy device. Referring to fig. 11, a phototherapy apparatus includes the light emitting panel 100 according to any of the above-described embodiments; the light-emitting panel further comprises a transparent bonding layer 200, and the transparent bonding layer 200 is located on the light-emitting surface of the light-emitting panel 100.

Because the phototherapy device is provided with transparent tie coat 200, the phototherapy device can be attached to phototherapy acceptor region surface.

The embodiment of the utility model provides a phototherapy device, phototherapy device comprise the transparent tie coat of luminescent panel and luminescent panel play plain noodles, and the region that the light emitting structure of luminescent panel shines is phototherapy receptor region, pastes when attaching when phototherapy receptor region, and temperature sensor can be used for detecting the temperature of phototherapy receptor region and luminescent panel. And at least one light-emitting structure arranged in an array and at least one temperature sensor arranged in an array in the light-emitting panel are positioned on the surface of the substrate, so that the thickness of the light-emitting panel is reduced compared with the scheme that the light-emitting structure and the temperature sensor are laminated on the surface of the substrate. To sum up, the embodiment of the utility model provides a phototherapy device can realize detecting the temperature of phototherapy receptor region and luminescent panel through temperature sensor to because light emitting structure and temperature sensor are located the surface of substrate, compare light emitting structure and the setting of temperature sensor stromatolite at the scheme of substrate surface, reduced phototherapy device's thickness.

It should be noted that the foregoing is only a preferred embodiment of the present invention and the technical principles applied. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail with reference to the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the scope of the present invention.

Claims (10)

1. A light-emitting panel, comprising: a substrate;

the light emitting structure and the temperature sensor are positioned on the surface of the substrate;

the light emitting structure and the temperature sensor have no overlap in an orthographic projection of the substrate.

2. The luminescent panel according to claim 1, wherein the temperature sensors are provided in one-to-one correspondence with the light emitting structures, the temperature sensors being located on one side of the light emitting structures.

3. The luminescent panel according to claim 1, wherein the temperature sensor comprises a positive electrode, a negative electrode, and a conductive temperature sensing layer;

the anode and the cathode are positioned on the surface of the substrate, and the orthographic projections of the anode and the cathode on the substrate are not overlapped;

the conductive temperature sensing layer covers the positive electrode and the negative electrode;

the resistance of the conductive temperature sensing layer changes linearly along with the change of the environmental temperature in a preset range.

4. The lighting panel of claim 3, wherein the electrically conductive temperature sensing layer comprises a graphene temperature sensing layer.

5. The luminescent panel according to claim 4, wherein the light emitting structures comprise a stack of a graphene anode, an organic light emitting layer and a common cathode, at least one of the light emitting structures sharing the common cathode;

the graphene anode and the conductive temperature sensing layer are positioned on the same layer;

the luminescent panel further comprises an insulating layer, the insulating layer is positioned between the common cathode and the conductive temperature sensing layer of the at least one temperature sensor, and the insulating layer covers the surface and the side face, far away from the substrate, of the temperature sensor;

the insulating layer is provided with a hollow structure, and the hollow structure exposes the light-emitting structure.

6. The luminescent panel according to claim 5, wherein the organic luminescent layer covers the graphene anode, and an area of the organic luminescent layer is larger than an area of the graphene anode; the common cathode covers the organic light emitting layer.

7. The light-emitting panel according to claim 3, wherein the light-emitting panel further comprises a connection wiring, the connection wiring being located on the surface of the substrate, the connection wiring comprising at least one positive connection wiring and at least one negative connection wiring;

the positive connecting wire and the positive pole one-to-one of temperature sensor set up and the electricity is connected, the negative pole connecting wire with the negative pole one-to-one of temperature sensor sets up and the electricity is connected.

8. The light-emitting panel according to claim 7, wherein the connection line further comprises at least one positive bus bar and at least one negative bus bar;

at least two positive connecting wires are connected with the positive bus;

and at least two negative connecting wires are connected with the negative bus.

9. The luminescent panel according to claim 1, further comprising a light-blocking structure provided so as to surround the light-emitting structure for blocking light emitted from the light-emitting structure from exiting in a direction perpendicular to a thickness direction of the substrate.

10. A phototherapy device comprising the light-emitting panel according to any one of claims 1 to 9;

still include transparent tie coat, transparent tie coat is located the play plain noodles of luminescent panel.

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