CN213025182U

CN213025182U - OLED display screen optical flexible middle plate and application structure

Info

Publication number: CN213025182U
Application number: CN202021982793.9U
Authority: CN
Inventors: 杨学锁
Original assignee: Longyan Gaoge Micro Buckle Technology Co ltd
Current assignee: Longyan Gaoge Micro Buckle Technology Co ltd
Priority date: 2020-09-11
Filing date: 2020-09-11
Publication date: 2021-04-20
Anticipated expiration: 2030-09-11

Abstract

The utility model discloses a flexible medium plate of OLED display screen optics and applied structure, medium plate include base plate and light shield layer, and the light shield layer is attached to on the base plate, and base plate thickness is 0.02 ~ 0.08mm, and the thickness of light shield layer is 20 ~ 50 mu m. The application structure comprises the OLED display screen optical flexible middle plate, the OLED display screen and a circuit board in an electronic product, wherein a shading film in the middle plate is attached to the OLED display screen, and a graphite heat dissipation film on a substrate is attached to a heating component in the electronic product or on the circuit board. The utility model discloses a special interlaminar structural design makes it no matter from structure, function, still can satisfy the demand of OLED trade in the optical characteristic.

Description

OLED display screen optical flexible middle plate and application structure

Technical Field

The utility model discloses a OLED display screen accessory, especially a flexible medium plate of OLED display screen optics and applied structure.

Background

An OLED (organic light-emitting diode), also called organic electroluminescent display, or organic light-emitting semiconductor (OLED). The OLED is a current-type organic light emitting device, and emits light by injection and recombination of carriers, and the intensity of light emission is proportional to the injected current. Under the action of an electric field, holes generated by an anode and electrons generated by a cathode move, are respectively injected into a hole transport layer and an electron transport layer, and migrate to a light emitting layer. When the two meet at the light emitting layer, energy excitons are generated, thereby exciting the light emitting molecules to finally generate visible light.

The organic plastic layer of the OLED is thinner, lighter, and more flexible than the crystalline layer of the LED or LCD. The light emitting layer of the OLED is relatively light, and thus its base layer may use a material rich in flexibility, instead of using a rigid material. The OLED substrate is made of plastic, and the LED and the LCD use glass substrates.

With the maturity and development of the OLED technology, the OLED display is more and more widely applied in people's life, and the OLED display is more and more adopted in mobile phones and tablet computers, especially curved screens, folding screens and the like.

The OLED display screen is limited by the structure of the OLED display screen, the display screen is not internally provided with a supporting structure, the self structure can not be kept stable like an LED screen or an LCD screen, a middle plate is required to be additionally arranged on the OLED display screen for fixing, and the electronic product has a requirement on the whole thickness, so that the whole middle plate structure is limited to a certain extent, the whole thickness of the whole middle plate cannot be too thick, and the conventional display screen back plate in the prior art cannot meet the structural requirement.

Disclosure of Invention

To the shortcoming that conventional display screen backplate among the above-mentioned prior art can not satisfy OLED display screen structural requirement, the utility model provides a flexible medium plate of OLED display screen optics and applied structure, it adopts special interlaminar structural design, makes it no matter from structure, function, still can satisfy the demand of OLED trade in the optical characteristic.

The utility model provides a technical scheme that its technical problem adopted is: the middle plate comprises a substrate and a shading layer, wherein the shading layer is attached to the substrate, the thickness of the substrate is 0.02-0.08 mm, and the thickness of the shading layer is 20-50 micrometers.

The utility model provides an application structure as above-mentioned flexible medium plate of OLED display screen optics, this application structure includes the flexible medium plate of OLED display screen optics as above-mentioned, the circuit board in OLED display screen and the electronic product, and the light shield layer in the medium plate is in the same place with OLED display screen laminating, and the graphite heat dissipation film on the base plate is in the same place with the components and parts that generate heat in the electronic product or on the circuit board laminating.

The utility model provides a technical scheme that its technical problem adopted further still includes:

the substrate is made of stainless steel plates, aluminum sheets or copper sheets.

The shading layer adopts black acrylic optical cement.

The shading layer include support membrane, upper shading layer and lower floor's shading layer, support the membrane upper strata and adhere to there being the upper shading layer, support the membrane lower floor and adhere to the lower floor's shading layer, the upper shading layer pastes on the base plate.

The shading layer is coated with a silicon release agent layer, and a release film is attached to the silicon release agent layer.

The thickness of the release film is 50-75 mu m.

And a graphite heat dissipation film is attached to the back surface of the substrate.

And the graphite heat dissipation film is attached with heat dissipation film release paper.

The utility model has the advantages that: the utility model discloses a special interlaminar structural design makes it no matter from structure, function, still can satisfy the demand of OLED trade in the optical characteristic.

The present invention will be further described with reference to the accompanying drawings and the detailed description.

Drawings

Fig. 1 is a schematic view of the three-dimensional structure of the present invention.

Fig. 2 is a schematic structural diagram of an exploded state according to an embodiment of the present invention.

Fig. 3 is a schematic cross-sectional view of an embodiment of the present invention.

Fig. 4 is a schematic structural diagram of two decomposition states in the embodiment of the present invention.

Fig. 5 is a schematic cross-sectional structure diagram of an embodiment of the present invention.

In the figure, 1 is a substrate, 2 is a shading layer, 3 is a support film, 4 is an upper shading layer, and 5 is a lower shading layer.

Detailed Description

The embodiment is a preferred embodiment of the present invention, and other principles and basic structures are the same as or similar to those of the embodiment, and are within the protection scope of the present invention.

Please combine to refer to fig. 1 to fig. 5, the utility model discloses mainly include base plate 1 and light shield layer 2, light shield layer 2 is attached to on base plate 1, in this embodiment, base plate 1 adopts corrosion resistant plate, aluminum sheet or copper sheet, and base plate 1 has certain flexibility, can play main supporting role, and base plate 1 thickness is 0.02 ~ 0.08mm, and light shield layer 2 mainly is black ya keli optical cement, and black ya keli optical cement is attached to on base plate 1, can keep it not to split under the 120 ℃ condition.

The present invention will be further explained with reference to two specific embodiments, which are as follows:

the first embodiment is as follows: referring to fig. 2 and 3, in the embodiment, the light-shielding layer 2 directly adopts black acrylic optical adhesive, the black acrylic optical adhesive is extruded to the coating head by the screw extrusion pump, and is uniformly coated on the substrate 1 by the coating head to form the light-shielding layer 2, and the thickness of the light-shielding layer 2 (or called as black acrylic optical adhesive) is 20 to 50 μm.

Example two: referring to fig. 4 and 5, in the embodiment, the light shielding layer 2 includes a support film 3, an upper light shielding layer 4 and a lower light shielding layer 5, the support film 3 is a PET film, in the specific implementation, a support film made of other materials may be specifically selected according to the actual requirement, the thickness of the support film 3 is 10 to 15 μm, the upper light shielding layer 4 is attached to the upper layer of the support film 3, the lower light shielding layer 5 is attached to the lower layer of the support film 3, the upper light shielding layer 4 and the lower light shielding layer 5 respectively use acrylic optical adhesive, and the thicknesses of the upper light shielding layer 4 and the lower light shielding layer 5 are both 3 to 5 μm, so that the thickness of the whole light shielding layer 2 is maintained at 20 to 50 μ. In this embodiment, the PET film may be a white PET film (or a white or transparent PET film is collectively referred to as a white PET film) or a black PET film, and when the PET film is the white PET film, the upper light-shielding layer 4 and the lower light-shielding layer 5 are made of black acrylic optical adhesive;

when the PET film adopts black PET film, the upper light-shielding layer 4 and the lower light-shielding layer 5 can adopt black acrylic optical cement or transparent acrylic optical cement, so that the whole body is black. In this embodiment, the upper light-shielding layer 4 is pasted on the substrate 1, and the lower light-shielding layer 5 is used for pasting with the OLED display screen.

The utility model discloses in, it has silicon release agent layer to coat on light shield layer 2, silicon release agent layer mainly plays and peels off the effect from the type membrane easily, in this embodiment, there is not special requirement to silicon release agent layer thickness, it can satisfy the peeling force requirement can, silicon release agent layer facing is equipped with from the type membrane, in this embodiment, is 50 ~ 75 mu m from the type membrane thickness, is 25 ~ 45 grams from the peeling force between type membrane and the light shield layer 2 (in this embodiment, gram is the custom-called unit of peeling force in the trade, its true unit is gf).

In this embodiment, a graphite heat dissipation film is attached to the back surface of the substrate 1 (in this embodiment, one surface of the substrate 1 to which the light shielding layer 2 is attached needs to be attached to the OLED display, which is defined as the front surface of the substrate 1, and the other surface of the substrate 1 is defined as the back surface of the substrate) for mounting with an electronic component. The graphite heat dissipation film is attached with heat dissipation film release paper.

The utility model discloses during the use (promptly the utility model discloses an use the structure), tear the release paper on the light shield layer 2, with light shield layer 2 and OLED display screen laminating together, play the shading effect through light shield layer 2, prevent the reverse light leak of OLED display screen. Graphite radiating film on the base plate 1 is pasted together with circuit board among the electronic product or the components that generate heat on the circuit board, can pass through graphite radiating film conduction to base plate 1 with the heat that circuit board or components that generate heat produced, forms a cooling surface through base plate 1, distributes away the heat, avoids generating heat too intensively, damages electronic component.

The utility model discloses a special interlaminar structural design makes it no matter from structure, function, still can satisfy the demand of OLED trade in the optical characteristic.

Claims

1. The utility model provides a flexible medium plate of OLED display screen optics which characterized by: the middle plate comprises a substrate (1) and a shading layer (2), wherein the shading layer (2) is attached to the substrate (1), the thickness of the substrate (1) is 0.02-0.08 mm, and the thickness of the shading layer (2) is 20-50 mu m.

2. The OLED display screen optically flexible middle plate of claim 1, wherein: the substrate (1) is made of a stainless steel plate, an aluminum sheet or a copper sheet.

3. The OLED display screen optically flexible middle plate of claim 1, wherein: the shading layer (2) is made of black acrylic optical cement.

4. The OLED display screen optically flexible middle plate of claim 1, wherein: the shading layer (2) comprises a supporting film (3), an upper shading layer (4) and a lower shading layer (5), the upper shading layer (4) is attached to the upper layer of the supporting film (3), the lower shading layer (5) is attached to the lower layer of the supporting film (3), and the upper shading layer (4) is pasted on the substrate (1).

5. The OLED display screen optical flexible middle plate as claimed in any one of claims 1 to 4, wherein: the shading layer (2) is coated with a silicon release agent layer, and a release film is attached to the silicon release agent layer.

6. The OLED display screen optical flexible middle plate of claim 5, wherein: the thickness of the release film is 50-75 mu m.

7. The OLED display screen optical flexible middle plate as claimed in any one of claims 1 to 4, wherein: the back of the substrate (1) is attached with a graphite heat dissipation film.

8. The OLED display screen optically flexible middle plate of claim 7, wherein: and the graphite heat dissipation film is attached with heat dissipation film release paper.

9. An application structure of flexible medium plate of OLED display screen optics, characterized by: the application structure comprises the OLED display screen optical flexible middle plate as claimed in any one of claims 1 to 8, an OLED display screen and a circuit board in an electronic product, wherein the light shielding layer (2) in the middle plate is attached to the OLED display screen, and the graphite heat dissipation film on the substrate (1) is attached to a heat-generating component in the electronic product or on the circuit board.