CN220553262U

CN220553262U - Silicon-based OLED micro display screen shading device

Info

Publication number: CN220553262U
Application number: CN202322195421.1U
Authority: CN
Inventors: 黄海军; 孙浩; 李牧词
Original assignee: Guangxi Free Trade Zone Ruixian Technology Co ltd
Current assignee: Guangxi Free Trade Zone Ruixian Technology Co ltd
Priority date: 2023-08-15
Filing date: 2023-08-15
Publication date: 2024-03-01
Anticipated expiration: 2033-08-15

Abstract

The utility model provides a silicon-based OLED micro display screen shading device, which comprises a PCB substrate positioned at a bottom layer, a silicon-based OLED layer is attached to the PCB substrate, a glass cover plate is covered on the silicon-based OLED layer, one side edge of the silicon-based OLED layer exceeds the glass cover plate to form a connecting edge, a shading frame is buckled on the glass cover plate, the connecting edge extends out from a through hole at one side of the shading frame, and the frame edge of the shading frame is used for blocking the rest periphery of the silicon-based OLED layer and the whole periphery of the glass cover plate. The plastic shell shading mode is adopted, the problem of light leakage at the side edge of the micro display screen is completely solved, the light rays of the micro display screen are more concentrated, the appearance is more attractive, and therefore user experience and product expressive force are improved. The plastic shell has high dimensional accuracy and light and thin appearance, and can improve the appearance effect of the micro display screen. The plastic shell is fixed on the micro display screen by adopting sealant, so that the corrosion of water vapor to the silicon-based OLED structure can be effectively prevented, and the service life of the silicon-based OLED display screen can be prolonged.

Description

Silicon-based OLED micro display screen shading device

Technical Field

The utility model belongs to the technical field of display, and relates to a display screen structure, in particular to a silicon-based OLED micro display screen shading device.

Background

The glass cover plate of the micro display screen generally adopts transparent glass, and when the micro display screen is lightened, the light leakage phenomenon can occur on the side edge of the transparent glass, so that the display effect of the micro display screen is affected. In addition, the glass cover plate is generally small in size, and a shading layer cannot be coated on the side edge of the glass cover plate in a screen printing mode or a shading PET (polyethylene terephthalate) sheet is stuck.

The existing shading scheme is as follows:

1. and (5) blackening the periphery of the glass cover plate by using a paint pen or a mark pen. The proposal has strict requirements on the size of the pen point, is required to be customized, is easy to generate uneven phenomenon after being manually blacked, has uneven phenomenon after being blacked, is extremely easy to be coated in an AA display area, influences the appearance and display of a product, and simultaneously has the risk of scratching glass sheets in the manual operation process.

2. And (5) spot shading glue is arranged around the glass cover plate.

For example, chinese patent literature discloses a package cover, a silicon-based organic light emitting display panel, and a display device [ chinese patent No.: 202022330080.0 the embodiment of the utility model discloses a packaging cover plate, a silicon-based organic light-emitting display panel and a display device, wherein the packaging cover plate is used for packaging the display panel and comprises the following components: a transparent substrate and a light shielding adhesive; the transparent substrate comprises at least one visual window; the transparent substrate also comprises a groove structure arranged along at least part of the edge of the visual window, and the shading glue is filled in the groove structure; or, the transparent substrate further comprises a first penetrating structure arranged along at least part of the edge of the visual window, the first penetrating structure penetrates through the transparent substrate, and the shading glue is filled in the first penetrating structure. The packaging cover plate can avoid the problem of side light emission of the organic light-emitting display panel and improve the display effect.

Firstly, the proposal has strict requirements on the glue, most of the glue is not solidified in the glue dispensing process or after the glue dispensing, and the glue can slightly flow, so that the local part of the glue is too thick or too thin; secondly, people can easily touch glue when taking and placing the products, and the appearance of the products is affected; finally, the dispensing precision is difficult to control, and the situation that no glue is locally applied is very easy to occur; thereby resulting in poor shading effect.

Disclosure of Invention

The utility model aims at solving the problems in the prior art, and provides a silicon-based OLED micro-display screen shading device which adopts a method of shielding a plastic shell to prevent light leakage at the side edge of a micro-display screen, so that light rays of the micro-display screen are more concentrated and the appearance is more attractive.

The aim of the utility model can be achieved by the following technical scheme: the utility model provides a silicon-based OLED micro-display screen shade, includes the PCB base plate that is located the bottom, attached silicon-based OLED layer on the PCB base plate, the glass apron is established to silicon-based OLED layer upper cover, one side portion of silicon-based OLED layer surpasses the glass apron forms the connection edge, detain on the glass apron and establish the shade frame, the connection edge by the opening of shade frame one side stretches out, the frame limit of shade frame encloses and keeps off all the periphery of silicon-based OLED layer all the periphery and glass apron.

In the above-mentioned light shielding device for a silicon-based OLED micro display screen, the light shielding frame is a square frame body, the square frame body is provided with a right-angle frame groove by a concave side, and the through hole is concavely formed in a side frame wall of the square frame body and is communicated with the right-angle frame groove.

In the above-mentioned silicon-based OLED micro display screen shading device, the top side groove wall of the right-angle frame groove is a square conical inner groove wall, and the inner groove wall shields the periphery of the glass cover plate.

In the above-mentioned silicon-based OLED micro display screen shading device, the peripheral side groove wall of the right-angle frame groove is a vertical groove wall, and the vertical groove wall is attached to the glass cover plate and the side edge of the silicon-based OLED layer.

In the silicon-based OLED micro-display screen shading device, the PCB substrate is bonded with the silicon-based OLED layer through epoxy resin glue.

In the above-mentioned light shielding device for a silicon-based OLED micro display screen, the silicon-based OLED layer is bonded with the glass cover plate by UV glue.

In the silicon-based OLED micro-display screen shading device, a gap of 0.1mm is reserved between the right-angle frame groove and the periphery of the glass cover plate.

In the silicon-based OLED micro-display screen shading device, the wall thickness of the shading frame is larger than 0.5mm.

In the silicon-based OLED micro-display screen shading device, the shading frame and the connecting edge are bonded through cofferdam filling glue; the shading frame is adhered with the glass cover plate through sealant.

In the silicon-based OLED micro-display screen shading device, the PCB substrate is externally connected with a driving plate.

Compared with the prior art, the silicon-based OLED micro display screen shading device has the following beneficial effects:

1. the plastic shell shading mode is adopted, the problem of light leakage at the side edge of the micro display screen is completely solved, the light rays of the micro display screen are more concentrated, the appearance is more attractive, and therefore user experience and product expressive force are improved.

2. The plastic shell is formed by injection molding of a high-speed injection molding machine, the size precision is high, the appearance is light and thin, and the appearance effect of the micro display screen can be improved.

3. The plastic shell is fixed on the micro display screen by adopting sealant, so that the corrosion of water vapor to the silicon-based OLED structure can be effectively prevented, and the service life of the silicon-based OLED display screen can be prolonged to a certain extent.

Drawings

FIG. 1 is an overall assembly view of the light shielding device of the silicon-based OLED micro-display screen.

Fig. 2 is an exploded structure diagram of the light shielding device of the silicon-based OLED micro-display screen.

FIG. 3 is a top perspective view of a shadow frame in the present silicon-based OLED micro-display screen shadow mask.

FIG. 4 is a bottom perspective view of a shadow frame in the present silicon-based OLED micro-display screen shadow mask.

In the figure, 1, a PCB substrate; 2. a silicon-based OLED layer; 2a, connecting edges; 3. a glass cover plate; 4. a light shielding frame; 4a, a through hole; 4b, inner chute walls; 4c, vertical groove walls.

Detailed Description

The following are specific embodiments of the present utility model and the technical solutions of the present utility model will be further described with reference to the accompanying drawings, but the present utility model is not limited to these embodiments.

As shown in fig. 1 and 2, the light shielding device for a silicon-based OLED micro display screen comprises a PCB substrate 1 positioned at a bottom layer, a silicon-based OLED layer 2 attached to the PCB substrate 1, a glass cover plate 3 covering the silicon-based OLED layer 2, a connecting edge 2a formed by the side edge of the silicon-based OLED layer 2 exceeding the glass cover plate 3, a light shielding frame 4 fastened to the glass cover plate 3, and a through hole 4a extending from one side of the light shielding frame 4 along the connecting edge 2a, wherein the frame edge of the light shielding frame 4 encloses the rest of the periphery of the silicon-based OLED layer 2 and the whole periphery of the glass cover plate 3.

The silicon-based OLED micro display screen is formed by sequentially stacking a PCB substrate 1, a silicon-based OLED layer 2 and a glass cover plate 3 from bottom to top. The light shielding frame 4 is specifically a plastic housing.

As shown in fig. 3 and 4, the light shielding frame 4 is a square frame body, the square frame body is provided with a right-angle frame groove by a concave upper side, and a through hole 4a is concavely formed in one side wall of the square frame body and is communicated with the right-angle frame groove. The specification of the square frame body is matched with that of the glass cover plate 3, so that the square frame body is in fit and buckling with the glass cover plate 3 and the silicon-based OLED layer 2. The height of the through hole 4a is matched with the thickness of the silicon-based OLED layer 2, so that the square frame body can limit and fix the glass cover plate 3 and enable the connecting edge 2a of the silicon-based OLED layer 2 to stretch out exactly.

The top side groove wall of the right-angle frame groove is a square conical inner groove wall 4b, and the inner groove wall 4b shields the periphery of the glass cover plate 3. The glass cover plate 3 is stably attached to the top surface of the silicon-based OLED layer 2 by the limitation of the inner inclined groove wall 4b, and the glass cover plate 3 is prevented from being displaced.

The peripheral side groove wall of the right-angle frame groove is a vertical groove wall 4c, and the vertical groove wall 4c is attached to the side edges of the glass cover plate 3 and the silicon-based OLED layer 2. The height of the vertical groove wall 4c is equal to the sum of the thicknesses of the glass cover plate 3 and the silicon-based OLED layer 2, and the peripheral light leakage phenomenon of the silicon-based OLED micro display screen is prevented by matching the peripheral groove wall with the top groove wall.

The PCB substrate 1 and the silicon-based OLED layer 2 are bonded through epoxy resin glue.

The silicon-based OLED layer 2 and the glass cover plate 3 are bonded through UV glue.

The right angle frame groove and the periphery of the glass cover plate 3 leave a gap of 0.1 mm. The light-shielding housing is designed based on different sized glass cover plates 3 to facilitate assembly by leaving appropriate clearances.

The wall thickness of the light shielding frame 4 is larger than 0.5mm. The wall thickness of the shading frame 4 can be designed based on the X/Y-direction gap between the silicon-based OLED layer 2 and the PCB substrate 1, so that the problems of deformation, shrinkage and the like of the shading frame 4 after injection molding are prevented; the material of the shading frame 4 is generally an antistatic black material, such as ABS, ABS+PC and the like, and based on the performance of the product, the high temperature resistance, corrosion resistance and the like of the material can be comprehensively considered; the height of the shading frame 4 is flush with the height of the glass cover plate 3.

The shading frame 4 is adhered to the connecting edge 2a through cofferdam filling glue; the shading frame 4 is adhered with the glass cover plate 3 through sealant. The shading frame 4 is fixed with a frame edge point cofferdam filling adhesive which is contacted with the connecting edge 2a, and the rest three frame edges of the shading frame 4 are fixed with a glass cover plate 3 contact point sealing adhesive.

The PCB substrate 1 is connected with the silicon-based OLED layer 2 through a bonding process; the PCB substrate 1 is externally connected with a driving plate and is used for controlling the display of the silicon-based OLED micro display screen.

The processing steps of the silicon-based OLED micro display screen shading device are as follows:

1. positioning and assembling the shading frame 4 on the silicon-based OLED micro display screen according to the shape;

2. the cofferdam filling glue is fixed at the side edge point of the shading frame 4, which is close to the PAD, and then the sealing glue is fixed at the remaining three side edge points;

3. and (3) placing the silicon-based OLED micro display screen after dispensing and the light shielding frame 4 into an 85-DEG oven for baking for 3H, wherein the baking temperature and time can be defined based on the performance of the selected glue, and taking out after the glue is solidified.

The specific embodiments described herein are offered by way of example only to illustrate the spirit of the utility model. Those skilled in the art may make various modifications or additions to the described embodiments or substitutions thereof without departing from the spirit of the utility model or exceeding the scope of the utility model as defined in the accompanying claims.

Although the PCB substrate 1 is used more herein; a silicon-based OLED layer 2; a connecting edge 2a; a glass cover plate 3; a light shielding frame 4; a through opening 4a; an inner chute wall 4b; vertical slot wall 4c, etc., but does not exclude the possibility of using other terms. These terms are used merely for convenience in describing and explaining the nature of the utility model; they are to be interpreted as any additional limitation that is not inconsistent with the spirit of the present utility model.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

Claims

1. The utility model provides a silicon-based OLED micro-display screen shade, includes the PCB base plate that is located the bottom, its characterized in that, attached silicon-based OLED layer on the PCB base plate, the glass apron is established to the upper cover of silicon-based OLED layer, one side limit portion of silicon-based OLED layer surpasses the glass apron forms the connection edge, detain on the glass apron and establish the shade frame, the connection edge by the opening of shade frame one side stretches out, the frame limit of shade frame keeps off all the periphery of silicon-based OLED layer all the periphery and glass apron.

2. The light shielding device of claim 1, wherein the light shielding frame is a square frame body, the square frame body is provided with a right-angle frame groove through a concave bottom side, and the through hole is concavely formed in a side frame wall of the square frame body and is communicated with the right-angle frame groove.

3. The light shielding device for silicon-based OLED micro-display screen as claimed in claim 2, wherein the top side groove wall of the right angle frame groove is a square cone-shaped inner groove wall, and the inner groove wall shields the periphery of the glass cover plate.

4. The light shielding device for a silicon-based OLED micro-display screen according to claim 2, wherein the peripheral side wall of the right-angle frame groove is a vertical groove wall, and the vertical groove wall is abutted against the glass cover plate and the side edge of the silicon-based OLED layer.

5. The light shielding device of claim 1, wherein the PCB substrate and the silicon-based OLED layer are bonded by epoxy glue.

6. The light shielding device for a silicon-based OLED micro-display screen of claim 1, wherein the silicon-based OLED layer is bonded to the glass cover plate by UV glue.

7. The silicon-based OLED micro-display screen light-shielding device of claim 2, wherein the right-angle bezel is spaced apart from the perimeter of the glass cover plate by a gap of 0.1 mm.

8. The silicon-based OLED micro-display screen shade device of claim 1, wherein the shade frame has a wall thickness greater than 0.5mm.

9. The light shielding device of a silicon-based OLED micro-display screen according to claim 1, wherein the light shielding frame and the connecting edge are adhered by cofferdam filling glue; the shading frame is adhered with the glass cover plate through sealant.

10. The light shielding device of claim 1, wherein the PCB substrate circumscribes a drive board.