CN115915810A - A light-emitting screen body and a light-emitting device - Google Patents

Abstract

The invention discloses a light-emitting screen body and a light-emitting device. The luminescent screen body comprises: a substrate; a plurality of light emitting cells including a stack of a first electrode, a light emitting device layer, and a second electrode, the first electrode being on a surface of a substrate; the first electrode leads correspond to and are connected with the first electrodes one by one; the plurality of first electrode leads comprise first preset leads, and the first preset leads are provided with at least one first sharp corner structure; and the anti-static lead is provided with at least one second sharp angle structure, and the first sharp angle structure and the second sharp angle structure are oppositely arranged and used for releasing static charges. The technical scheme provided by the embodiment of the invention is used for releasing the electrostatic charge of the first electrode lead.

Description

A light-emitting screen body and a light-emitting device

technical field

The invention relates to the technical field of semiconductors, in particular to a light-emitting screen body and a light-emitting device.

Background technique

Organic light-emitting (OLED) devices have been widely used in the fields of light-emitting and display because of their low power consumption and light-weight finished products.

During the production, production, storage and transportation of OLED light-emitting screens, static electricity will be generated, especially the electrostatic charge generated by the electrode leads connected to the electrodes can easily cause damage to the light-emitting screen and the light-emitting device.

Contents of the invention

The invention provides a luminescent screen body and a luminescent device, which are used to discharge the electrostatic charges of the first electrode leads.

According to one aspect of the present invention, there is provided a luminescent screen, comprising:

Substrate;

a plurality of light-emitting units, the light-emitting unit comprising a stack of a first electrode, a light-emitting device layer, and a second electrode, the first electrode being located on the surface of the substrate;

a plurality of first electrode leads, the first electrode leads correspond to and connect to the first electrodes;

The plurality of first electrode leads include a first predetermined lead, and the first predetermined lead is provided with at least one first sharp angle structure;

The antistatic lead wire is provided with at least one second sharp corner structure, and the first sharp corner structure and the second sharp corner structure are arranged opposite to each other for discharging electrostatic charges.

Optionally, the plurality of first electrode leads include a second predetermined lead, and the second predetermined lead is adjacent to the first predetermined lead;

The second predetermined lead is provided with at least one third pointed structure, and the third pointed structure is arranged opposite to the first pointed structure for discharging electrostatic charge;

The antistatic lead is multiplexed as the second preset lead, and the second pointed structure is reused as the third pointed structure.

Optionally, a first insulating layer is further included, and the first preset lead and the antistatic lead are located on the same surface of the first insulating layer.

Optionally, a second insulating layer is further included, and the first preset lead and the antistatic lead are located on different surfaces of the second insulating layer.

Optionally, the second insulating layer includes a first surface and a second surface opposite to the first surface, the first preset lead is located on the first surface, and the antistatic lead is located on the second surface.

Optionally, a third insulating layer is further included, and the third insulating layer is located between the first preset lead and the antistatic lead.

Optionally, the third insulating layer is provided with a first through hole, the first pointed structure is located in the first through hole, and the second pointed structure is located in the first through hole.

Optionally, the second insulating layer is provided with a second through hole, the first pointed structure is located in the second through hole, and the second pointed structure is located in the second through hole.

Optionally, a fourth insulating layer is also included, the plurality of first electrode leads include a third predetermined lead, and the first predetermined lead and the third predetermined lead are located on different surfaces of the fourth insulating layer, The first preset lead is provided with a fourth sharp angle structure, the third preset lead is provided with a fifth sharp angle structure, and the fourth sharp angle structure and the fifth sharp angle structure are arranged oppositely for Discharge electrostatic charge.

According to another aspect of the present invention, a light emitting device is provided, including the light emitting screen described in any one of the embodiments of the present invention.

In the technical solution provided by this embodiment, the first sharp-angle structure of the first predetermined lead and the second sharp-angle structure of the antistatic lead are arranged oppositely. Since the electrostatic charge can be collected at the sharp-angle structure, the first sharp-angle structure and the second The pointed structure can release the electrostatic charge of the lead wires of the first electrode, thereby preventing the first electrode from causing damage to the light-emitting screen.

It should be understood that the content described in this section is not intended to identify key or important features of the embodiments of the present invention, nor is it intended to limit the scope of the present invention. Other features of the present invention will be easily understood from the following description.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings that need to be used in the description of the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present invention. For those skilled in the art, other drawings can also be obtained based on these drawings without creative effort.

Fig. 1 is a top view of a first light-emitting screen body provided according to an embodiment of the present invention;

Fig. 2 is a top view of a second light-emitting screen body provided according to an embodiment of the present invention;

Fig. 3 is a top view of a third light-emitting screen body provided according to an embodiment of the present invention;

Fig. 4 is a schematic cross-sectional structure diagram of a first electrode lead in the direction A1-A2 in Fig. 3;

Fig. 5 is a top view of a fourth light-emitting screen body provided according to an embodiment of the present invention;

Fig. 6 is a schematic cross-sectional structure diagram of a first electrode lead in the direction A1-A2 in Fig. 5;

Fig. 7 is a top view of a fifth light-emitting screen body provided according to an embodiment of the present invention;

Fig. 8 is a top view of a sixth light-emitting screen body provided according to an embodiment of the present invention;

Fig. 9 is a top view of a third insulating layer provided with a first through hole in Fig. 7;

Fig. 10 is a top view of a third insulating layer provided with a first through hole in Fig. 8;

Fig. 11 is a schematic structural diagram of a second through hole provided in the second insulating layer in Fig. 4;

FIG. 12 is a schematic structural view of the fourth insulating layer provided with a second through hole in FIG. 6 .

Detailed ways

In order to enable those skilled in the art to better understand the solutions of the present invention, the following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only It is an embodiment of a part of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present invention.

It should be noted that the terms "first" and "second" in the description and claims of the present invention and the above drawings are used to distinguish similar objects, but not necessarily used to describe a specific sequence or sequence. It is to be understood that the data so used are interchangeable under appropriate circumstances such that the embodiments of the invention described herein can be practiced in sequences other than those illustrated or described herein. Furthermore, the terms "comprising" and "having", as well as any variations thereof, are intended to cover a non-exclusive inclusion, for example, a process, method, system, product or device comprising a sequence of steps or elements is not necessarily limited to the expressly listed instead, may include other steps or elements not explicitly listed or inherent to the process, method, product or apparatus.

In order to release the electrostatic charge of the first electrode lead, the embodiment of the present invention provides the following technical solutions:

Fig. 1 is a top view of a first light-emitting screen body provided according to an embodiment of the present invention. Referring to Fig. 1, the light-emitting screen body includes: a substrate 01; a plurality of light-emitting units 02, and the light-emitting unit 02 includes a first electrode, a light-emitting device layer and The stack of the second electrode, the first electrode is located on the surface of the substrate 01; the plurality of first electrode leads 03 correspond to and connect to the first electrodes; the plurality of first electrode leads 03 include the first preset lead L1, the first The preset lead L1 is provided with at least one first sharp angle structure S1; the antistatic lead wire 04, the antistatic lead wire 04 is provided with at least one second sharp angle structure S2, and the first sharp angle structure S1 and the second sharp angle structure S2 are arranged oppositely , for the discharge of electrostatic charges.

Exemplarily, Fig. 1 shows 4 light emitting units 02, 4 first electrode leads 03, and 4 first electrode leads 03 are the first preset leads L1.

In the technical solution provided by this embodiment, the first sharp angle structure S1 of the first preset lead L1 and the second sharp angle structure S2 of the antistatic lead 04 are arranged oppositely. Since the sharp angle structure can collect electrostatic charges, the first sharp angle The structure S1 and the second pointed structure S2 can release the electrostatic charge of the lead wire 03 of the first electrode, thereby preventing the first electrode from causing damage to the light emitting panel.

Optionally, on the basis of the above technical solution, refer to FIG. 2 , which is a top view of a second type of luminous screen body provided according to an embodiment of the present invention, and a plurality of first electrode leads 03 include a second preset lead L2, The second predetermined lead L2 is arranged adjacent to the first predetermined lead L1; the second predetermined lead L2 is provided with at least one third sharp-angle structure S3, and the third sharp-angle structure S3 is arranged opposite to the first sharp-angle structure S1, It is used to discharge electrostatic charge; the antistatic lead 04 is multiplexed as the second preset lead L2, and the second sharp-angle structure S2 is multiplexed as the third sharp-angle structure S3.

Specifically, the antistatic lead 04 is reused as the second predetermined lead L2 among the plurality of first electrode leads 03, which simplifies the structure of the luminescent screen and reduces the manufacturing cost. Moreover, there is no need to separately arrange the antistatic lead wire 04 , and the first electrode lead wire 03 can be set wider, which is beneficial to reduce the resistance of the first electrode lead wire 03 . Moreover, the third sharp angle structure S3 and the first sharp angle structure S1 are arranged opposite to each other, and are used to discharge electrostatic charges, which can release the electrostatic charges of the first electrode leads 03, so as to prevent the first electrode from causing damage to the light-emitting panel.

Optionally, on the basis of the above technical solution, referring to FIG. 1 , a first insulating layer 05 is also included, and the first preset lead L1 and the antistatic lead 04 are located on the same surface of the first insulating layer 05 .

Referring to FIG. 2 , when the antistatic lead 04 is multiplexed as the second preset lead L2 , the second preset lead L2 and the first preset lead L1 are located on the same surface of the first insulating layer 05 .

The above technical solution can release the electrostatic charges of the first electrode leads 03 located on the first insulating layer 05, so as to prevent the first electrodes from causing damage to the light-emitting panel.

Optionally, on the basis of the above technical solution, see Figure 3 and Figure 4, Figure 3 is a top view of a third light-emitting screen provided according to an embodiment of the present invention, Figure 4 is a first electrode lead wire in Figure 3 The schematic cross-sectional structure diagram of the direction A1-A2, the luminescent screen body also includes a second insulating layer 06, and the first preset lead L1 and the antistatic lead 04 are located on different surfaces of the second insulating layer 06. Further, referring to FIG. 4 , the second insulating layer 06 includes a first surface and a second surface opposite to the first surface, the first preset lead L1 is located on the first surface, and the antistatic lead 04 is located on the second surface.

The above-mentioned technical solution can release the electrostatic charges of the first electrode leads 03 located on the second insulating layer 06, so as to prevent the first electrodes from causing damage to the light-emitting panel.

Referring to Fig. 5 and Fig. 6, Fig. 5 is a top view of a fourth light-emitting screen provided according to an embodiment of the present invention, and Fig. 6 is a schematic cross-sectional structure diagram of a first electrode lead in the direction A1-A2 in Fig. 5, and the antistatic lead 04 When multiplexed as the second preset lead L2, the luminescent screen body also includes a fourth insulating layer 07, and the multiple first electrode leads include the third preset lead L3, the first preset lead L1 and the third preset lead L3 Located on different surfaces of the fourth insulating layer 07, the first predetermined lead L1 is provided with a fourth pointed structure S4, the third predetermined lead L3 is provided with a fifth pointed structure S5, the fourth pointed structure S4 and the fifth pointed structure The corner structures S5 are arranged opposite to each other for discharging electrostatic charges.

The above-mentioned technical scheme can release the electrostatic charge of the first electrode leads 03 (the first preset lead L1 and the third preset lead L3) located on the two opposite surfaces of the fourth insulating layer 07, thereby preventing the first electrode pair from emitting light. The screen is damaged.

Optionally, on the basis of the above technical solution, refer to FIG. 7, which is a top view of a fifth luminous screen body provided according to an embodiment of the present invention. The luminous screen body also includes a third insulating layer 08, and the third insulating layer The layer 08 is located between the first preset lead L1 and the antistatic lead 04 .

In the above technical solution, a third insulating layer 08 is provided between the first preset lead L1 and the antistatic lead 04, and the electrostatic charge of the first preset lead L1 is released between the first sharp angle structure S1 and the second sharp angle structure S2. At the same time, it can avoid the short circuit of the part of the first preset lead L1 and the antistatic lead 04 except the first sharp-angle structure S1 and the second sharp-angle structure S2.

Referring to Fig. 8, Fig. 8 is a top view of the sixth type of luminescent screen according to the embodiment of the present invention. When the antistatic lead 04 is multiplexed as the second preset lead L2, the third insulating layer 08 is located on the second preset lead L2 and the first preset lead L1.

In the above technical solution, a third insulating layer 08 is provided between the first preset lead L1 and the second preset lead L2, which can avoid Parts of the first preset lead L1 and the second preset lead L2 excluding the first sharp-angle structure S1 and the third sharp-corner structure S3 are short-circuited.

Optionally, on the basis of the above technical solution, refer to FIG. 9, which is a top view of the third insulating layer in FIG. The sharp corner structure S1 is located in the first through hole T1, and the second sharp corner structure S2 is located in the first through hole T1.

In the above technical solution, a first through hole T1 is provided in the third insulating layer 08, and the first through hole T1 exposes the first pointed structure S1 and the second pointed structure S2, which helps to improve the first pointed structure S1 and the second pointed structure. The ability of the bicuspid structure S2 to discharge electrostatic charges.

Referring to Figure 10, Figure 10 is a top view of the third insulating layer provided with the first through hole in Figure 8, when the antistatic lead 04 is reused as the second preset lead L2, the third insulating layer 08 is provided with the first through hole T1 , the first pointed structure S1 is located in the first through hole T1, and the third pointed structure S3 is located in the first through hole T1.

In the above technical solution, a first through hole T1 is provided in the third insulating layer 08, and the first through hole T1 exposes the first pointed structure S1 and the third pointed structure S3, which helps to improve the first pointed structure S1 and the third pointed structure. The ability of the triangular structure S3 to discharge electrostatic charges.

Optionally, on the basis of the above technical solution, see FIG. 11 , which is a schematic structural view of the second through hole provided in the second insulating layer in FIG. 4 , the second insulating layer 06 is provided with the second through hole T2, the second through hole T2 A sharp corner structure S1 is located in the second through hole, and a second sharp corner structure S2 is located in the second through hole T2.

In the above technical solution, the second insulating layer 06 is provided with a second through hole T2, and the second through hole T2 exposes the first pointed structure S1 and the second pointed structure S2, which helps to improve the first pointed structure S1 and the second pointed structure. The ability of the pointed structure S2 to discharge electrostatic charges.

Referring to Fig. 12, Fig. 12 is a schematic diagram of the structure of the second insulating layer provided with the second through hole in Fig. 6. When the antistatic lead 04 is reused as the second preset lead L2, the fourth insulating layer 07 is provided with the second through hole T2, the fourth pointed structure S4 is located in the second through hole T2, and the fifth pointed structure S5 is located in the second through hole T2.

In the above technical solution, a second through hole T2 is provided in the fourth insulating layer 07, and the second through hole T2 exposes the fourth pointed structure S4 and the fifth pointed structure S5, which helps to improve the fourth pointed structure S4 and the fifth pointed structure. The ability of the five-pointed structure S5 to discharge electrostatic charges.

Optionally, on the basis of the above technical solution, the first electrode is an anode, and the second electrode is a cathode.

Each light-emitting unit 20 is provided with an anode separately, and all the light-emitting units 02 share a common cathode, so that each light-emitting unit 20 can be individually controlled to emit light. And one anode is set corresponding to one first electrode lead 03 , the electrostatic charge of the first electrode lead 03 can be released through the luminescent screen provided by this embodiment, so as to prevent the anode from causing damage to the luminescent screen.

The embodiment of the invention also provides a light emitting device. The light emitting device includes the light emitting screen described in any embodiment of the present invention. The light-emitting device has the beneficial effect of the light-emitting screen described in any embodiment of the present invention, and details will not be repeated here.

It should be understood that steps may be reordered, added or deleted using the various forms of flow shown above. For example, the various steps described in this application may be executed in parallel, sequentially, or in a different order, as long as the desired result of the technical solution of this application can be achieved, there is no limitation herein.

The above specific implementation methods do not constitute a limitation to the protection scope of the present invention. It should be apparent to those skilled in the art that various modifications, combinations, sub-combinations and substitutions may be made depending on design requirements and other factors. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention shall be included within the protection scope of the present invention.

Claims (10)

1. A luminescent screen, comprising:

a substrate;

a plurality of light emitting cells including a stack of a first electrode, a light emitting device layer, and a second electrode, the first electrode being on a surface of the substrate;

the first electrode leads correspond to and are connected with the first electrodes one by one;

the plurality of first electrode leads comprise first preset leads, and the first preset leads are provided with at least one first sharp corner structure;

and the anti-static lead is provided with at least one second sharp angle structure, and the first sharp angle structure and the second sharp angle structure are oppositely arranged and used for releasing static charges.

2. The luminescent screen body of claim 1, wherein the plurality of first electrode leads comprises a second predetermined lead, the second predetermined lead being disposed adjacent to the first predetermined lead;

the second preset lead is provided with at least one third sharp corner structure, and the third sharp corner structure and the first sharp corner structure are oppositely arranged and used for releasing electrostatic charges;

the anti-static lead is reused as the second preset lead, and the second sharp corner structure is reused as the third sharp corner structure.

3. The light-emitting screen body according to claim 1 or 2, further comprising a first insulating layer, wherein the first preset lead and the anti-static lead are located on the same surface of the first insulating layer.

4. The luminescent screen body of claim 1 or 2, further comprising a second insulating layer, wherein the first predetermined lead and the anti-static lead are located on different surfaces of the second insulating layer.

5. The light-emitting screen body according to claim 4, wherein the second insulating layer comprises a first surface and a second surface disposed opposite to the first surface, the first predetermined lead is located on the first surface, and the anti-static lead is located on the second surface.

6. The luminescent screen body of claim 3, further comprising a third insulating layer, the third insulating layer being located between the first predetermined lead and the anti-static lead.

7. The luminescent screen body of claim 6, wherein the third insulating layer is provided with a first via, the first pointed structure being located at the first via, and the second pointed structure being located at the first via.

8. The light-emitting screen body of claim 5, wherein the second insulating layer is provided with a second via, the first pointed structure being located at the second via, and the second pointed structure being located at the second via.

9. The light-emitting screen body according to claim 4, further comprising a fourth insulating layer, wherein the plurality of first electrode leads comprise a third predetermined lead, the first predetermined lead and the third predetermined lead are located on different surfaces of the fourth insulating layer, the first predetermined lead is provided with a fourth sharp corner structure, the third predetermined lead is provided with a fifth sharp corner structure, and the fourth sharp corner structure and the fifth sharp corner structure are opposite to each other and used for releasing electrostatic charges.

10. A lighting device comprising the luminescent screen of any one of claims 1-9.

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