Oled anti-static device and display device

Abstract

The application provides an OLED anti-static device and a display device. The OLED anti-static device comprises: an FPC; a first layer of the FPC is sequentially arranged with a plurality of signal lines; the first layer is any layer in the FPC; the first ends of the signal lines are respectively used for one-to-one corresponding connection with respective electrodes of an OLED, and the second ends of the signal lines are used for connection with a driving device; each signal line is provided with a first pointed end protrusion for releasing static electricity, and the pointed ends of two adjacent first pointed end protrusions are opposite and isolated from each other. The application releases the static electricity in the OLED out of the screen body through the FPC to prevent the static electricity release from damaging the film layer of the screen body. Meanwhile, the signal line connection lead in the FPC increases the path of static electricity transmission, delays the static electricity release time, and further improves the anti-static performance.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of display devices, and in particular to an OLED anti-static device and a display device. BACKGROUND

[0002] An organic light-emitting diode (OLED) is a kind of lighting and display technology, and through applying a certain direct current voltage to the OLED, electric energy can be converted into light energy. However, because the film layer inside the OLED is relatively thin (a few hundred nanometers), it is easy to be affected by static electricity and be broken down, which may cause functional defects or even screen failure.

[0003] In the prior art, an electrostatic discharge loop is usually arranged inside the screen body, but when the static electricity is discharged inside the screen body, it will still affect the internal film layer and cause safety hazards to the OLED. SUMMARY

[0004] The embodiments of the present application provide an OLED anti-static device and a display device to solve the problem that static electricity is discharged inside the screen body and the OLED screen body film is damaged.

[0005] In a first aspect, the embodiments of the present application provide an OLED anti-static device, comprising: an FPC; a first layer of the FPC is arranged with a plurality of signal lines;

[0006] The first end of each signal line is used for one-to-one corresponding connection with each electrode of the OLED, and the second end of each signal line is used for connection with a driving device;

[0007] Each signal line is provided with a first pointed end protrusion for discharging static electricity, and the pointed ends of two adjacent first pointed end protrusions are opposite and isolated from each other.

[0008] In a possible implementation, the FPC includes at least two layers;

[0009] A plurality of second pointed end protrusions are arranged on a second layer of the FPC; wherein the second layer is any layer of the FPC which is different from the first layer;

[0010] For any one second pointed end protrusion, the pointed ends of the second pointed end protrusion and an adjacent second pointed end protrusion are opposite and isolated from each other; and the second pointed end protrusion is connected with the signal line corresponding to the second pointed end protrusion through a via hole;

[0011] For any one signal line, the signal line connected with the first pointed end protrusion opposite to the first pointed end protrusion is not completely the same as the signal line connected with the second pointed end protrusion opposite to the second pointed end protrusion.

[0012] In a possible implementation, the outermost two signal lines are connected to at least two second tip protrusions, and the other signal lines are connected to two second tip protrusions except the outermost two signal lines.

[0013] In a possible implementation, each via corresponds to one signal line.

[0014] In the second layer of the FPC, the vias are staggered and arranged on at least two straight lines except the vias corresponding to the outermost two signal lines; and the number of the second tip protrusions connected to the outermost two signal lines is the same as the number of the straight lines.

[0015] The two second tip protrusions corresponding to each via on each straight line are arranged in a hand-in-hand manner.

[0016] The second tip protrusions connected to the first outermost signal line are respectively opposite to the second tip protrusions corresponding to the leftmost via on each straight line.

[0017] The second tip protrusions connected to the second outermost signal line are respectively opposite to the second tip protrusions corresponding to the rightmost via on each straight line.

[0018] In a possible implementation, the FPC includes at least three layers; each third layer of the FPC is provided with a plurality of third tip protrusions; and the third layer is any layer between the first layer and the second layer.

[0019] For any signal line, the signal line is connected to the third tip protrusions corresponding to the signal line on each third layer of the FPC and the second tip protrusions corresponding to the signal line on the second layer of the FPC through the via.

[0020] In a possible implementation, windows are opened in the areas where the first tip protrusions of the first layer of the FPC are located and the areas where the second tip protrusions of the second layer of the FPC are located.

[0021] In a possible implementation, the outermost two signal lines are connected to only one first tip protrusion; and each of the other signal lines is connected to two first tip protrusions, and the two first tip protrusions are located on the two sides of the signal line.

[0022] In a possible implementation, each first tip protrusion is located on the same straight line.

[0023] In a second aspect, an embodiment of the present application provides a display device, including: an OLED and an OLED anti-static device provided in the first aspect of the present application.

[0024] The OLED is connected to the OLED anti-static device through each electrode.

[0025] In a possible implementation, the OLED anti-static device is bound to the OLED by using a conductive adhesive film.

[0026] The embodiment of the present application provides an OLED anti-static device and a display device, the OLED anti-static device comprises: an FPC; a first layer of the FPC is sequentially arranged with a plurality of signal lines; wherein the first layer is any layer in the FPC; the first end of each signal line is used for one-to-one corresponding connection with each electrode of the OLED, and the second end of each signal line is used for connection with a driving device; each signal line is provided with a first pointed end protrusion for releasing static electricity, and the pointed ends of two adjacent first pointed end protrusions are opposite and isolated from each other. The embodiment of the present application releases the static electricity in the OLED out of the screen body through the FPC, so that damage caused by static electricity release to the screen body film layer is prevented. Meanwhile, the signal line connection lead in the FPC increases the path of static electricity transmission, delays the static electricity release time, and further improves the anti-static performance. BRIEF DESCRIPTION OF DRAWINGS

[0027] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the embodiments or prior art description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0028] Figure 1 is a structure diagram of an OLED in the prior art;

[0029] Figure 2 is a structure diagram of an OLED anti-static device provided by the embodiment of the present application;

[0030] Figure 3 is an arrangement diagram of each first pointed end protrusion of the first layer of the FPC provided by the embodiment of the present application;

[0031] Figure 4 is Figure 3 is an enlarged view of part a in FIG. 8;

[0032] Figure 5 is an arrangement diagram of each second pointed end protrusion of the second layer of the FPC provided by the embodiment of the present application;

[0033] Figure 6 is an arrangement diagram of each third pointed end protrusion of the third layer of the FPC provided by the embodiment of the present application. DETAILED DESCRIPTION

[0034] To enable those skilled in the art to better understand this solution, the technical solutions in the embodiments of this solution will be clearly described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this solution, not all of them. Based on the embodiments of this solution, all other embodiments obtained by those skilled in the art without creative effort should fall within the scope of protection of this solution.

[0035] The term "comprising" and any other variations thereof in the specification, claims, and accompanying drawings of this invention mean "including but not limited to," and are intended to cover a non-exclusive inclusion, not limited to the examples listed herein. Furthermore, the terms "first" and "second," etc., are used to distinguish different objects, not to describe a specific order.

[0036] The implementation of the present invention will be described in detail below with reference to the accompanying drawings:

[0037] Figure 1 This is a schematic diagram of the structure of an OLED in the prior art, including: a light-emitting area, an OLED screen, and an electrode area. The electrode area is used to connect with a driving device. If static electricity is generated inside the OLED, it will damage the screen film.

[0038] refer to Figure 2 and Figure 3 , Figure 3 It shows Figure 2 Enlarged view of part A in the diagram. An embodiment of the present invention provides an OLED anti-static device, comprising: an FPC; a first layer of the FPC having multiple signal lines arranged sequentially; wherein, the first layer can be any layer within the FPC;

[0039] The first end of each signal line is used to connect to each electrode of the OLED, and the second end of each signal line is used to connect to the driving device.

[0040] Each signal line is equipped with a first tip protrusion for discharging static electricity, and the tips of two adjacent first tip protrusions are opposite to each other and isolated from each other.

[0041] refer to Figure 2 In this embodiment of the invention, the FPC signal lines conduct static electricity from the inside of the OLED screen to the outside of the screen. Further, refer to... Figure 3 The system employs tip discharge to release static electricity, preventing damage to the OLED screen film caused by electrostatic discharge. Simultaneously, the signal line connection leads within the FPC increase the path for electrostatic transmission, delaying the electrostatic discharge time and further improving anti-static performance.

[0042] For example, refer to Figure 1 , Figure 2 and Figure 3The OLED comprises 32 light-emitting regions, and the electrode region corresponds to each of the 32 light-emitting regions with 32 electrode lines and 2 ground lines. Each electrode line and ground line is connected to a signal line, and the signal lines are arranged sequentially. Each signal line (numbered 1 to 32) connected to each electrode line has two first-tip protrusions on its left and right sides, while the signal line connected to the ground line has only one first-tip protrusion. The two first-tip protrusions connected to each signal line are arranged opposite to the first-tip protrusions of the adjacent signal line in a "hand-holding" configuration.

[0043] For example, the first tip protrusion on the left side of signal line 12 is opposite to the first tip protrusion on the right side of signal line 11 (see reference). Figure 4 The first pointed protrusion on the right side of signal line 12 is opposite to the first pointed protrusion on the left side of signal line 13. When signal lines 11 and 12 carry positive and negative electrostatic charges respectively (that is, the electrodes connected to them have positive and negative electrostatic charges), they discharge from their tips to release static electricity; or when signal lines 12 and 13 carry positive and negative electrostatic charges respectively, they also discharge from their tips to release electrical energy, drawing out the static electricity in the OLED screen and releasing the static electricity through tip discharge.

[0044] In one possible implementation, each of the first tip protrusions is located in the middle section of the corresponding signal line.

[0045] In one possible implementation, each signal line has two or more first tip protrusions.

[0046] Each of the first tip protrusions is located in the middle section to prevent electrostatic discharge from affecting the OLED and driving device.

[0047] In one possible implementation, refer to Figure 5 An FPC can include at least two layers;

[0048] Multiple second-point protrusions are provided in the second layer of the FPC; the second layer is any layer in the FPC that is different from the first layer.

[0049] For any given second tip protrusion, the tip of the second tip protrusion is opposite to that of the adjacent second tip protrusion and is isolated from each other; the second tip protrusion is connected to the corresponding signal line through a via;

[0050] For any given signal line, the signal line connected to the first tip protrusion opposite to the first tip protrusion is not exactly the same as the signal line connected to the second tip protrusion opposite to the second tip protrusion.

[0051] Depend on Figure 3It can be seen that each signal line can only discharge between the adjacent signal lines. If the 12th signal line and the 10th signal line carry positive and negative static charges respectively, since the 11th signal line is located between the 12th signal line and the 10th signal line, the charges cannot be discharged by the tip.

[0052] Therefore, in the embodiment of the application, a plurality of second tip protrusions can be arranged on the second layer of the FPC, and the signal line on the first layer can be discharged by the signal line on the second layer, so that the two non-adjacent signal lines can be discharged by the tip, and the anti-static performance of the device is improved.

[0053] In the formula, the reference Figure 5 The second layer further comprises anti-static wires, and the second tip protrusions are connected to the corresponding anti-static wires. The anti-static wires are connected to the corresponding signal lines through the vias, so as to realize the connection between the second tip protrusions and the corresponding signal lines. For example, the two second tip protrusions corresponding to the 12th signal line are connected to the same anti-static wire, and the anti-static wire is connected to the 12th signal line through the via. The anti-static wire is only used to connect the tip protrusion and the via, and the shape is not limited.

[0054] In a possible implementation, the outermost two signal lines are connected to at least two second tip protrusions, and the other signal lines are connected to two second tip protrusions.

[0055] In a possible implementation, each via corresponds to one signal line;

[0056] On the second layer of the FPC, the vias are staggered on at least two straight lines except for the vias corresponding to the outermost two signal lines; and the number of the second tip protrusions connected to the outermost two signal lines is the same as the number of the straight lines.

[0057] The two second tip protrusions corresponding to each via on each straight line are arranged in a "hand-in-hand" manner.

[0058] The second tip protrusions connected to the first outermost signal line are respectively opposite to the second tip protrusions corresponding to the leftmost via on each straight line.

[0059] The second tip protrusions connected to the second outermost signal line are respectively opposite to the second tip protrusions corresponding to the rightmost via on each straight line.

[0060] In a possible implementation, on the second layer of the FPC, each signal line is provided with 2 or more second tip protrusions.

[0061] In the formula, the reference Figure 5, each via hole is staggered and arranged in two straight lines, and each via hole is arranged between two signal lines. For example, the first row corresponds to the 1st, 3rd, 5th, 7th, 9th, 11th, 13th, 15th, 17th, 19th, 21st, 23rd, 25th, 27th, and 29th signal lines. In a straight line, two second pointed protrusions connected by each via hole are arranged in a "hand-in-hand" manner. The two second pointed protrusions corresponding to the first outer signal line are opposite to the left second pointed protrusions corresponding to the 1st signal line and the left second pointed protrusions corresponding to the 2nd signal line. There are 34 signal lines, and the "hand-in-hand" arrangement is adopted.

[0062] At this time, for example, the 12th signal line can discharge between the 11th and 13th signal lines in the first layer, and can discharge between the 10th and 14th signal lines in the second layer, thereby increasing the discharge path of static electricity and improving the anti-static performance of the device.

[0063] For example, referring to FIG. 1, the third layer is arranged between the first layer and the second layer, and each via hole is arranged in three straight lines, and each via hole is arranged between two signal lines. For example, the first row corresponds to the 1st, 4th, 7th, 10th, 13th, 16th, 19th, 22nd, 25th, 28th, and 31st signal lines. The first outer signal line corresponds to three third pointed protrusions, which are opposite to the left third pointed protrusions corresponding to the 1st, 2nd, and 3rd signal lines. Figure 6

[0064] Further, the third layer is also provided with anti-static lines, each third pointed protrusion is connected to a corresponding anti-static line, and the anti-static line is connected to a corresponding signal line through a via hole, thereby realizing the connection between the third pointed protrusion and the corresponding signal line.

[0065] Further, when each via hole is arranged in three rows, other arrangement modes can also be adopted, which are not limited herein. Each via hole can also be arranged in four or more rows, and each row of signal lines is spaced apart by M (M is a positive integer) signal lines, so that the signal line can discharge between not only the adjacent signal lines but also any other signal line, thereby improving the anti-static performance of the device.

[0066] In a possible implementation, the FPC can include at least three layers; each third layer of the FPC is provided with a plurality of third pointed protrusions; and the third layer is any layer between the first layer and the second layer.

[0067] In a possible implementation, in the third layer of the FPC, each signal line is provided with two or more third pointed protrusions.

[0068] ​In a possible implementation, the punching positions of the signal lines of each layer of the FPC are all on the same number signal line corresponding to the first layer, which not only reduces the process difficulty, but also prevents the crosstalk problem caused by the confusion of the anti-static wires.

[0069] For any signal line, the signal line is connected with the third tip protrusion corresponding to each third layer of the FPC and the second tip protrusion corresponding to the second layer of the FPC through the via.

[0070] In the embodiment of the application, a plurality of tip protrusions can be arranged in each layer of the FPC, and a plurality of anti-static layers are arranged, so that the signal line can realize tip discharge with more other signal lines, and the anti-static performance of the device is improved.

[0071] The arrangement of the tip protrusions of each layer of the FPC can refer to Figure 3 , Figure 5 and Figure 6 . For example, the FPC includes three layers, the first layer is as shown in Figure 3 , the second layer is as shown in Figure 5 , and the third layer is as shown in Figure 6 . For the 12th signal line, the first layer can realize tip discharge between the 11th and 13th signal lines; the second layer can realize tip discharge between the 10th and 14th signal lines; and the third layer can realize tip discharge between the 9th and 15th signal lines. Through the above arrangement, the 12th signal line can realize tip discharge between the 9th, 10th, 11th, 13th, 14th and 15th signal lines, a total of 6 signal lines, which greatly increases the release path of static electricity and improves the anti-static performance of the device.

[0072] In a possible implementation, the first layer, the second layer and the third layer are only one of the multiple layers of the FPC, and the arrangement of the tip protrusions of each layer of the FPC can be any one or several of Figure 3 , Figure 5 and Figure 6 .

[0073] In a possible implementation, the first layer and / or the second layer can be windowed in the region where each first tip protrusion is located and / or the region where each second tip protrusion is located.

[0074] In the embodiment of the application, the tip protrusion region of the first layer and / or the second layer can be windowed to expose each first tip protrusion and / or each second tip protrusion, form an air point discharge path, and facilitate tip discharge.

[0075] In a possible implementation, the first and second outer signal lines can each be connected with only one first tip bump; each of the remaining signal lines can be connected with two first tip bumps, and the two first tip bumps are respectively located at two sides of the signal line.

[0076] In a possible implementation, each first tip bump can be located on the same straight line.

[0077] For example, referring to Figure 3 , each first tip bump can be located on the same straight line, which is convenient for layout and simple to operate. Details are the same as above, and thus are not described herein.

[0078] Specifically, each first tip bump can also not be located on the same straight line, and it is only required that adjacent first tip bumps are oppositely arranged.

[0079] For example, referring to Figure 2 , the embodiment of the present application provides a display device, which comprises an OLED and an OLED anti-static device provided in the above embodiment.

[0080] The OLED is connected with the OLED anti-static device through each electrode.

[0081] In a possible implementation, the OLED anti-static device can be bound with the OLED by using a conductive adhesive film.

[0082] The above embodiments are only used to illustrate the technical solutions of the present application, but not limit the present application; although the present application is described in detail with reference to the above embodiments, those skilled in the art should understand that the technical solutions recorded in the above embodiments can be modified, or some technical features can be replaced by equivalents; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. An OLED anti-static device, characterized in that, The application relates to an OLED anti-static device. The OLED anti-static device comprises an FPC; a first layer of the FPC is sequentially arranged with a plurality of signal lines; The first ends of the signal lines are respectively used for one-to-one corresponding connection with the electrodes of an OLED, and the second ends of the signal lines are used for connection with a driving device; Each signal line is provided with a first pointed end protrusion for releasing static electricity; the pointed ends of two adjacent first pointed end protrusions are opposite to each other and are isolated from each other; The FPC comprises at least two layers; A plurality of second pointed end protrusions are arranged on a second layer of the FPC; the second layer is any layer of the FPC which is different from the first layer; For any one second pointed end protrusion, the pointed end of the second pointed end protrusion is opposite to the pointed end of an adjacent second pointed end protrusion, and the second pointed end protrusions are isolated from each other; the second pointed end protrusion is connected with a signal line corresponding to the second pointed end protrusion through a via hole; For any one signal line, the signal line connected with the first pointed end protrusion opposite to the first pointed end protrusion is not completely the same as the signal line connected with the second pointed end protrusion opposite to the second pointed end protrusion.

2. The OLED anti-static device of claim 1, wherein, The outermost two signal lines are connected with at least two second pointed end protrusions, and the other signal lines except the outermost two signal lines are connected with two second pointed end protrusions.

3. The OLED anti-static device of claim 2, wherein, Each via hole corresponds to one signal line; On the second layer of the FPC, the via holes except the via holes corresponding to the outermost two signal lines are sequentially staggered and arranged on at least two straight lines; the number of the second pointed end protrusions connected with the outermost two signal lines is the same as the number of the straight lines; The two second pointed end protrusions corresponding to each via hole on each straight line are sequentially arranged in a hand-in-hand mode; The second pointed end protrusions connected with the first outermost signal line are opposite to the second pointed end protrusions corresponding to the leftmost via hole on each straight line; The second pointed end protrusions connected with the second outermost signal line are opposite to the second pointed end protrusions corresponding to the rightmost via hole on each straight line.

4. The anti-static OLED device according to any one of claims 1 to 3, wherein, The FPC comprises at least three layers; At least one third layer of the FPC is respectively provided with a plurality of third pointed end protrusions; the third layer is any layer between the first layer and the second layer; For any one signal line, the signal line is connected with the third pointed end protrusions corresponding to the signal line on each third layer of the FPC and the second pointed end protrusions corresponding to the signal line on the second layer of the FPC through via holes.

5. The anti-static OLED device according to any one of claims 1 to 3, wherein, Windows are opened in the regions of the first pointed end protrusions on the first layer of the FPC and / or the regions of the second pointed end protrusions on the second layer of the FPC.

6. The OLED anti-static device of claim 1, wherein, The outermost two signal lines are connected with only one first pointed end protrusion; the other signal lines except the outermost two signal lines are connected with two first pointed end protrusions, and the two first pointed end protrusions are respectively located on the two sides of the signal lines.

7. The anti-static OLED device of claim 6, wherein the anti-static OLED device is a flexible OLED device. Each first pointed end protrusion is located on the same straight line.

8. A display device, characterized by comprising: The application further relates to an OLED and an OLED anti-static device as claimed in any one of claims 1 to 7. The OLED is connected with the OLED anti-static device through the electrodes. The OLED anti-static device and the OLED are bound by using a conductive adhesive film.

9. The display device of claim 8, wherein, ​

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