Structure for improving light leakage of visual area of PMOLED screen

Abstract

The utility model relates to a structure for improving light leakage of a visual area of a PMOLED screen. The structure for improving light leakage of the visual area of the PMOLED screen comprises a substrate and a membrane material assembly, the membrane material assembly comprises a cathode membrane layer, a first extension membrane layer and a second extension membrane layer, the first extension membrane layer is arranged at one end of the cathode membrane layer, the second extension membrane layer is arranged at the other end of the cathode membrane layer, the cathode membrane layer is located on one side of the substrate, and the first extension membrane layer is located on the other side of the substrate. The first extending film layer is parallel to the substrate, and the second extending film layer is parallel to the substrate. According to the scheme provided by the invention, the problem of light leakage caused by a gap between the fitting tolerance of the cover plate and the PMOLED screen can be solved.

Description

Technical Field

[0001] The utility model relates to the technical field of display screens, in particular to a structure for improving light leakage in a PMOLED screen viewing area. Background Art

[0002] Except for the area where characters are displayed, the peripheral areas of the PMOLED screen are all transparent. The reason is that the cathode material of the PMOLED screen is aluminum metal. Since aluminum metal is opaque, there is an obvious color difference between the character display area and the peripheral area when the screen is off, which facilitates the subsequent bonding of the cover.

[0003] In the related art, the transparent area of ​​the cover is usually slightly larger than the display area of ​​the PMOLED screen, in order to reserve a fitting tolerance for the cover. Therefore, after the PMOLED screen and the cover are fitted together, a transparent gap will appear between the transparent area of ​​the cover and the display area of ​​the PMOLED screen, and light will shine through this gap, thus affecting the display effect. Utility Model Content

[0004] The purpose of the utility model is to overcome the deficiencies in the prior art and provide a structure for improving light leakage in the viewing area of ​​a PMOLED screen, which can solve the problem of light leakage caused by a gap between the cover plate and the PMOLED screen due to the fitting tolerance.

[0005] The purpose of this utility model is achieved through the following technical solutions:

[0006] In a first aspect, the present application provides a structure for improving light leakage in a viewing area of ​​a PMOLED screen, comprising: a substrate; a film material assembly, comprising a cathode film layer, a first extended film layer and a second extended film layer, wherein the first extended film layer is arranged at one end of the cathode film layer, and the second extended film layer is arranged at the other end of the cathode film layer, the cathode film layer is located on one side of the substrate, the first extended film layer is parallel to the substrate, and the second extended film layer is parallel to the substrate.

[0007] The length of the first extended film layer ranges from 1 mm to 1.5 mm.

[0008] The length of the second extended film layer ranges from 1 mm to 1.5 mm.

[0009] A transparent area is provided on the substrate.

[0010] The film material assembly further includes an ITO layer, and the ITO layer is disposed on the substrate.

[0011] The film material assembly further includes a first injection film layer and a first transmission film layer. The first side of the first injection film layer is disposed on the ITO layer, and the second side of the first injection film layer is disposed on the first side of the first transmission film layer.

[0012] The film material assembly further includes a light-emitting film layer, wherein a first side of the light-emitting film layer is disposed on a second side of the first transmission film layer.

[0013] The film material assembly also includes a second transmission film layer and a second injection film layer, the first side of the second transmission film layer is arranged on the second side of the light-emitting film layer, the second side of the second transmission film layer is arranged on the first side of the second injection film layer, and the second side of the second injection film layer is arranged on the cathode film layer.

[0014] The film material assembly also includes a colloid, and the colloid is arranged on the ITO layer.

[0015] The film material assembly further comprises a bottom plate, and the bottom plate is arranged on the colloid.

[0016] Compared with the prior art, the utility model has at least the following advantages:

[0017] By extending the two ends of the cathode film layer to form a first extended film layer and a second extended film layer, since the cathode film layer is made of aluminum metal, which is opaque, the color of the transparent area on the substrate is consistent with the color of the character display area, thereby solving the problem of light leakage in the PMOLED viewing area. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for use in the embodiments are briefly introduced below.

[0019] Figure 1 It is a schematic structural diagram of a structure for improving light leakage in the viewing area of ​​a PMOLED screen in one embodiment of the utility model. DETAILED DESCRIPTION

[0020] The embodiments of the present application will be described in more detail below with reference to the accompanying drawings. Although the embodiments of the present application are shown in the accompanying drawings, it should be understood that the present application can be implemented in various forms and should not be limited by the embodiments described herein. On the contrary, these embodiments are provided to make the present application more thorough and complete, and to fully convey the scope of the present application to those skilled in the art.

[0021] It should be understood that although the terms "first", "second", "third", etc. may be used in this application to describe various information, this information should not be limited to these terms. These terms are only used to distinguish the same type of information from each other. For example, without departing from the scope of this application, the first information may also be referred to as the second information, and similarly, the second information may also be referred to as the first information. Thus, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0022] Unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, or a detachable connection or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0023] The transparent area of ​​the cover is usually slightly larger than the display area of ​​the PMOLED screen. This is done to allow for a gap in the fit of the cover. Therefore, after the PMOLED screen and the cover are fitted together, a transparent gap will appear between the transparent area of ​​the cover and the display area of ​​the PMOLED screen. Light will shine through this gap, thus affecting the display effect.

[0024] In view of the above problems, the embodiments of the present application provide a structure for improving light leakage in the viewing area of ​​a PMOLED screen, which can solve the problem of light leakage caused by a gap between the cover plate and the PMOLED screen due to the lamination tolerance.

[0025] The technical solution of the embodiments of the present application is described in detail below with reference to the accompanying drawings.

[0026] See also Figure 1 A structure for improving light leakage in the viewing area of ​​a PMOLED screen includes: a substrate 100 and a film material assembly 200, the film material assembly 200 includes a cathode film layer 210, a first extended film layer 220 and a second extended film layer 230, the first extended film layer 220 is arranged at one end of the cathode film layer 210, the second extended film layer 230 is arranged at the other end of the cathode film layer 210, the cathode film layer 210 is located on one side of the substrate 100, the first extended film layer 220 and the substrate 100 are parallel to each other, and the second extended film layer 230 and the substrate 100 are parallel to each other.

[0027] It should be noted that a transparent area is provided on the substrate 100, and the transparent area is located at the edges of the substrate 100, and the length of the conventional cathode film layer is consistent with the length of the character display area of ​​the substrate. The material of the cathode film layer 210 is aluminum metal, and the materials of the first extension film layer 220 and the second extension film 230 are also aluminum metal, that is, by increasing the area of ​​the cathode film layer 210, the color of the transparent area on the periphery of the PMOLED screen is made as consistent as possible with the color of the character display area, thereby solving the problem of light leakage caused by the gap between the cover plate fitting tolerance and the PMOLED screen.

[0028] See also Figure 1 In one embodiment, the length of the first extended film layer 220 is in the range of 1 mm to 1.5 mm. Specifically, the length of the second extended film layer 230 is in the range of 1 mm to 1.5 mm.

[0029] It should be noted that the length of the first stretch film layer 220 and the second stretch film layer 230 is usually more than 1 mm, so as to solve the problem of light leakage caused by the gap between the cover plate and the PMOLED screen due to the lamination tolerance.

[0030] See also Figure 1 In one embodiment, the film assembly 200 further includes an ITO layer 240, and the ITO layer 240 is disposed on the substrate 100. Specifically, the film assembly 200 further includes a first injection film layer 250 and a first transmission film layer 260, the first side of the first injection film layer 250 is disposed on the ITO layer 240, and the second side of the first injection film layer 250 is disposed on the first side of the first transmission film layer 260. Specifically, the film assembly 200 further includes a light-emitting film layer 270, and the first side of the light-emitting film layer 270 is disposed on the second side of the first transmission film layer 260. Specifically, the film assembly 200 further includes a second transmission film layer 280 and a second injection film layer 290, the first side of the second transmission film layer 280 is disposed on the second side of the light-emitting film layer 270, the second side of the second transmission film layer 280 is disposed on the first side of the second injection film layer 290, and the second side of the second injection film layer 290 is disposed on the cathode film layer 210.

[0031] It should be noted that the ITO layer 240 is the anode, the first injection film layer 250 is the hole injection layer, the first transport film layer 260 is the hole transport layer, the luminescent film layer 270 is the organic material luminescent layer, the second transport film layer 280 is the electron transport film layer, and the second injection film layer 290 is the electron injection film layer.

[0032] See also Figure 1 In one embodiment, the film assembly 200 further includes a colloid 2100 , and the colloid 2100 is disposed on the ITO layer 240 .

[0033] It should be noted that the colloid 2100 is epoxy sealant.

[0034] See also Figure 1 In one embodiment, the film assembly 200 further includes a bottom plate 2200 , and the bottom plate 2200 is disposed on the colloid 2100 .

[0035] It should be noted that the bottom plate 2200 is a rear glass cover.

[0036] The scheme of the present application has been described in detail above with reference to the accompanying drawings. In the above embodiments, the descriptions of the various embodiments have their own emphasis. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments. Those skilled in the art should also be aware that the actions and modules involved in the specification are not necessarily required for the present application. In addition, it can be understood that the steps in the method of the embodiment of the present application can be adjusted in order, merged and deleted according to actual needs, and the modules in the device of the embodiment of the present application can be merged, divided and deleted according to actual needs.

[0037] The embodiments of the present application have been described above, and the above description is exemplary, not exhaustive, and is not limited to the disclosed embodiments. Many modifications and changes will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments. The selection of terms used herein is intended to best explain the principles of the embodiments, practical applications, or improvements to the technology in the market, or to enable other persons of ordinary skill in the art to understand the embodiments disclosed herein.

Claims

1. A structure for improving light leakage in the viewing area of ​​a PMOLED screen, characterized in that: include: substrate; A film material assembly includes a cathode film layer, a first extended film layer and a second extended film layer, wherein the first extended film layer is arranged at one end of the cathode film layer, and the second extended film layer is arranged at the other end of the cathode film layer, and the cathode film layer is located on one side of the substrate, the first extended film layer and the substrate are parallel to each other, and the second extended film layer and the substrate are parallel to each other.

2. The structure for improving light leakage in the viewing area of ​​a PMOLED screen according to claim 1, characterized in that: The length of the first extended film layer ranges from 1 mm to 1.5 mm.

3. The structure for improving light leakage in the viewing area of ​​a PMOLED screen according to claim 1, characterized in that: The length of the second extended film layer ranges from 1 mm to 1.5 mm.

4. The structure for improving light leakage in the viewing area of ​​a PMOLED screen according to claim 1, characterized in that: A transparent area is provided on the substrate.

5. The structure for improving light leakage in the viewing area of ​​a PMOLED screen according to claim 1, characterized in that: The film material assembly further includes an ITO layer, and the ITO layer is disposed on the substrate.

6. The structure for improving light leakage in the viewing area of ​​a PMOLED screen according to claim 5, characterized in that: The film material assembly further includes a first injection film layer and a first transmission film layer. The first side of the first injection film layer is disposed on the ITO layer, and the second side of the first injection film layer is disposed on the first side of the first transmission film layer.

7. The structure for improving light leakage in the viewing area of ​​a PMOLED screen according to claim 6, characterized in that: The film material assembly further includes a light-emitting film layer, wherein a first side of the light-emitting film layer is disposed on a second side of the first transmission film layer.

8. The structure for improving light leakage in the viewing area of ​​a PMOLED screen according to claim 7, characterized in that: The film material assembly also includes a second transmission film layer and a second injection film layer, the first side of the second transmission film layer is arranged on the second side of the light-emitting film layer, the second side of the second transmission film layer is arranged on the first side of the second injection film layer, and the second side of the second injection film layer is arranged on the cathode film layer.

9. The structure for improving light leakage in the viewing area of ​​a PMOLED screen according to claim 7, characterized in that: The film material assembly also includes a colloid, and the colloid is arranged on the ITO layer.

10. The structure for improving light leakage in the viewing area of ​​a PMOLED screen according to claim 9, characterized in that: The film material assembly further comprises a bottom plate, and the bottom plate is arranged on the colloid.

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