WO2020093580A1

WO2020093580A1 - Panel middle frame, display panel, and display device

Info

Publication number: WO2020093580A1
Application number: PCT/CN2019/070144
Authority: WO
Inventors: 易岑
Original assignee: 惠州市华星光电技术有限公司
Priority date: 2018-11-06
Filing date: 2019-01-02
Publication date: 2020-05-14
Also published as: CN109445152A

Abstract

A panel middle frame (10), a display panel (100), and a display device. The panel middle frame (10) is provided with a cross beam (1) and a side beam (2), and several hollowed-out sections (3) are provided on the cross beam (1). The display panel (100) comprises the panel middle frame (10), and further comprises a display layer (30), a backlight module (20), a first filler (40), and a second filler (50). The side beam (2) is encapsulated on a side surface of the backlight module (20), and the cross beam (1) is encapsulated in the edge of a light emitting surface (251) of the backlight module (20). A non-display surface (311) is provided on the cross beam (1). Gaps among the backlight module (20), the display layer (30), and the side beam (2) are filled with the first filler (40) and the second filer (50). The display device comprises the display panel (100). The generation of shadow around a display device is avoided, so that a display screen is more balanced, and the use experience of a user is improved; moreover, materials can be saved, and thus the costs are saved.

Description

Panel middle frame, display panel and display device

Technical field

The invention relates to the field of display, in particular to a panel middle frame, a display panel and a display device.

Background technique

The current development trend of display devices lies in narrow bezels and no bezels, and especially no bezels are particularly popular among users. The bezel-less display device increases the aesthetics of the display and enhances the sense of spaciousness of the user's visual experience. But the borderless display on the market is not really borderless in the true sense, but the border of the display is made very small and narrow, so that the human eye can not feel the existence of the border at a long distance, so as to achieve the effect of borderless .

The display device is usually provided with a middle frame for supporting, protecting, etc. the components in the liquid crystal display device. The structure of the middle frame has various forms to adapt to the backlight module, the display layer and other components. It generally includes a cross beam and a side beam. The side beam and the cross beam are arranged on the edge of the backlight module in a wrapped form. The reason is that the beam cannot be made narrower. As shown in FIG. 1, in the existing display device, the beam design of the middle frame will hinder the transmission of backlight light, and it is easy to form a dark shadow supported by the middle frame around the display area. Due to the presence of the frame, the sense of use without a frame cannot be achieved, which seriously affects the user's visual experience.

technical problem

The object of the present invention is to provide a panel middle frame, a display panel and a display device to solve the phenomenon of dark shadows around the display device in the prior art.

Technical solution

In order to solve the above problems, the present invention provides a panel middle frame, which has a cross beam and a side beam. Wherein, the cross beam is vertically connected to a surface of the side beam. The cross beam is provided with several hollow sections.

Further, the hollow section of the beam is trapezoidal or square.

Further, the middle frame is one of “┌” shaped middle frame, “┠” shaped middle frame, and “[” shaped middle frame.

The invention also provides a display panel including a backlight module and the above-mentioned middle frame of the panel. The backlight module has a side surface and a light-emitting surface. The side beam is encapsulated on the side of the backlight module, and the cross beam is encapsulated on the edge of the light emitting surface of the backlight module.

Further, the display panel further includes a display layer, including a display surface and a non-display surface opposite to the display surface, the non-display surface is disposed on the beam.

Further, there is a first gap between the backlight module and the side beams, and the first gap is filled with a first filler having cushioning performance.

Further, the first filler is a flexible material, and the flexible material is one of polyethylene, chlorinated polyethylene, polyvinyl chloride, and rubber.

Further, there is a second gap between the display layer and the side beams, and the second gap is filled with a second filler having cushioning properties.

Further, the second filler is a flexible material, and the flexible material is one of polyethylene, chlorinated polyethylene, polyvinyl chloride, and rubber.

The present invention also provides a display device, including any of the above display panels.

Beneficial effect

The advantages of the present invention are: a panel middle frame of the present invention, the cross beam of which is designed as a hollow structure, which does not affect the supporting force of the middle frame, and enables the backlight light to couple and converge well after being emitted, to avoid the occurrence of shadows, so that The display is more balanced. At the same time, the design of the hollow structure can also save materials, thereby saving costs. A display panel of the present invention, because it includes the above-mentioned middle frame of the panel, effectively reduces the supporting shadow of the middle frame around the display layer, improves the picture quality, and improves the visual effect of the product. A display device of the present invention includes the above-mentioned display panel, so no shadows are generated around the display screen, and the effect of narrow borders or even no borders can be truly achieved when used at close range, and the user feels better.

BRIEF DESCRIPTION

Figure 1 is a backlight ray projection diagram of the prior art;

2 is a schematic cross-sectional view of a middle frame of a panel in an embodiment of the present invention;

3 is a structural view of the hollow frame of the middle panel of the embodiments 1 and 3 of the present invention;

4 is a structural view of the hollow frame of the middle panel of the embodiments 2 and 4 of the present invention;

5 is a diagram of backlight ray projection in an embodiment of the present invention;

6 is a schematic diagram of a partial layer of a display panel in an embodiment of the present invention;

7 is a layered schematic diagram of the backlight module in Examples 1 and 2 of the present invention;

8 is a layered schematic diagram of the backlight module in Embodiments 3 and 4 of the present invention;

9 is a schematic diagram of a layer of a display layer in an embodiment of the present invention.

The components in the figure are as follows:

Display panel 100;

Panel middle frame 10;

Side beam 11; Cross beam 12; Hollow section 13;

Backlight module 20;

Backlight 21; back plate 22; reflection sheet 23; light guide plate 24; diffusion sheet 25;

Non-luminous surface 221; luminous surface 251;

Display layer 30;

Glass substrate 31; alignment film 32; liquid crystal layer 33; color filter 34; polarizing plate 35;

Non-display surface 311; display surface 351;

The first filler 40; the second filler 50.

Embodiments of the invention

The following describes four preferred embodiments of the present invention with reference to the accompanying drawings of the specification, and proves that the present invention can be implemented. The embodiments can fully introduce the present invention to those skilled in the art to make its technical content clearer and easier to understand. The present invention can be embodied by many different forms of embodiments, and the scope of protection of the present invention is not limited to the embodiments mentioned herein.

In the drawings, components with the same structure are denoted by the same numerals, and components with similar structures or functions are denoted by similar numerals. The size and thickness of each component shown in the drawings are arbitrarily shown, and the present invention does not limit the size and thickness of each component. In order to make the illustration clearer, the thickness of the components is exaggerated in some places in the drawings.

In addition, the descriptions of the following embodiments refer to additional drawings to illustrate specific embodiments of the present invention that can be implemented. Directional terms mentioned in the present invention, for example, "upper", "lower", "front", "rear", "left", "right", "inner", "outer", "side", etc., only It refers to the directions of the attached drawings. Therefore, the directional terms are used for better and clearer description and understanding of the present invention, rather than indicating or implying that the device or element referred to must have a specific orientation, with a specific orientation The construction and operation cannot be understood as a limitation of the present invention. In addition, the terms "first", "second", "third", etc. are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

When certain components are described as "on" another component, the component may be placed directly on the other component; there may also be an intermediate component, which is placed on the intermediate component, And the intermediate component is placed on another component. When a component is described as "mounted to" or "connected to" another component, the two can be understood to be "installed" or "connected" directly, or a component indirectly "mounted to" or "connected" through an intermediate component To "another part.

Example 1

As shown in FIG. 2, this embodiment provides a panel middle frame 10. The panel middle frame 10 in this embodiment includes a side beam 1 and a cross beam 2. The beam 2 is vertically connected to the middle of the side beam 1, and the middle frame 10 of the panel composed of the side beam 1 and the beam 2 is “┠” shaped.

As shown in FIG. 3, the crossbeam 2 is provided with several hollow sections 3, and the shape of the hollow sections 3 is trapezoidal. Due to the trapezoidal hollow section 3, the structural strength, stability and light transmission effect are better. Therefore, the trapezoidal hollow-out section 3 can make the backlight light more effectively transmit through the middle frame, and effectively improve the darkening phenomenon of the middle frame area of the corresponding panel of the original display device, as shown in FIG. 5.

As shown in FIG. 6, this embodiment further provides a display panel 100 including the panel middle frame 10, the backlight module 20 and the display layer 30.

As shown in FIG. 7, the backlight module 20 includes a light-emitting surface 251 and a non-light-emitting surface 221. The side beam 1 of the middle frame 10 of the panel is packaged on the side of the backlight module 20, and the beam 2 is packaged on the backlight The edge of the light emitting surface 251 of the module 20. The backlight module 20 is provided with a backlight 21, a back plate 22, a reflective sheet 23, a light guide plate 24, a diffusion sheet 25 and other films and panels. In this embodiment, the backlight 21 is an edge-lit backlight, which is provided on one side of the reflective sheet 23 and the light guide plate 24 to provide a light source for the display layer 30. The back plate 22 is an opaque substrate for protecting the overall structure of the backlight module 20, and the non-light emitting surface 221 is the lower surface of the back plate 22. Films and panels such as a reflection sheet 23, a light guide plate 24, and a diffusion sheet 25 are sequentially stacked on the upper surface of the back plate 22, and the light source refracts and disperses light through each film and panel, and exits from the light emitting surface 251.

As shown in FIG. 9, the display layer 30 includes a display surface 351 and a non-display surface 311. The edge of the non-display surface 311 of the display layer 30 is provided on the beam 2 of the middle frame 10 of the panel. The display layer 30 provided in this embodiment is provided with a glass substrate 31, an alignment film 32, a liquid crystal layer 33, a color filter 34, a polarizing plate 35 and other films and panels. The glass substrate 31 is generally a light-transmitting glass with a refractive index lower than 1.4, which protects the display layer 30, and the non-display surface 311 is its lower surface. Films such as the alignment film 32, the liquid crystal layer 33, the color filter 34, and the polarizing plate 35 and the panel are sequentially stacked on the upper surface of the glass substrate 31. The alignment film 32 is a film with straight stripe scratches, which is covered with a layer on the upper surface and the lower surface of the liquid crystal layer 33 respectively, and serves to guide the arrangement direction of the liquid crystal molecules of the liquid crystal layer 33. Since the liquid crystal layer 33 itself does not emit light, it receives the light source emitted from the light emitting surface 251 of the backlight module 20 through the non-display surface 311, and then converts the received backlight light source into the corresponding needs through the color filter 34 Light of different colors, and finally combining these colors of light, a beautiful picture is presented through the display surface 351 on the polarizing plate 35.

In order to protect the backlight module 20 and the display layer 30 from being damaged by crushing or bumping during production, transportation and movement, there is a first gap between the side beam 1 of the panel middle frame 10 and the display layer 30, the side There is a second gap between the beam 1 and the backlight module 20. Both the first gap and the second gap are filled with fillers having buffering properties, the first gap 40 is the first filler 40, and the second gap is the second filler 50. Both the first filler 40 and the second filler 50 are flexible materials, such as polyethylene, chlorinated polyethylene, polyvinyl chloride, rubber, and the like.

This embodiment also provides a display device (not shown), including the above-mentioned display panel 100. The display device may be any display function such as a liquid crystal display, a mobile phone, a tablet computer, a notebook computer, a digital camera, a navigator, etc. Products or parts.

In this embodiment, a lot of trapezoidal hollow shapes are provided on the beam 2 of the middle frame 10 of the panel, so that the backlight light source of the backlight module 20 is projected to the display layer 30, avoiding the generation of shadows around the display device, and making the display picture more balanced To improve user experience. At the same time, materials can be saved, thereby saving costs.

Example 2

As shown in FIG. 4, the crossbeam 2 is provided with several hollow sections 3, and the shape of the hollow sections 3 is square. Since the support area of the square hollow section 3 is larger, the supporting force is better, so The square hollow-out section 3 can support each panel more stably, and at the same time effectively improve the darkening phenomenon of the frame area of the corresponding panel of the original display device, as shown in FIG. 5.

Example 3

As shown in FIG. 8, the backlight module 20 includes a light-emitting surface 251 and a non-light-emitting surface 221. The side beam 1 of the middle frame 10 of the panel is packaged on the side of the backlight module 20, and the beam 2 is packaged on the backlight The edge of the light emitting surface 251 of the module 20. The backlight module 20 is provided with a diaphragm and a panel such as a backlight 21, a back plate 22, a reflective sheet 23, and a diffusion sheet 25. In this embodiment, the backlight 21 is a direct-in backlight, which is provided between the reflective sheet 23 and the diffusion sheet 25 to provide a light source for the display layer 30. The back plate 22 is an opaque substrate for protecting the overall structure of the backlight module 20, and the non-light emitting surface 221 is the lower surface of the back plate 22. Films and panels such as a reflective sheet 23, a backlight 21, a diffusion sheet 25, and the like are provided on the upper surface of the back plate 22 in sequence. The light source refracts and disperses light through each film and the panel, and exits from the light emitting surface 251.

Example 4

As shown in FIG. 8, the backlight module 20 includes a light-emitting surface 251 and a non-light-emitting surface 221. The side beam 1 of the middle frame 10 of the panel is packaged on the side of the backlight module 20, and the beam 2 is packaged on the backlight The edge of the light emitting surface 251 of the module 20. The backlight module 20 is provided with a diaphragm and a panel such as a backlight 21, a back plate 22, a reflective sheet 23, and a diffusion sheet 25. In this embodiment, the backlight 21 is a direct-in backlight, and is provided between the reflective sheet 23 and the diffusion sheet 25 to provide a light source for the display layer 30. The back plate 22 is an opaque substrate for protecting the overall structure of the backlight module 20, and the non-light emitting surface 221 is the lower surface of the back plate 22. Films and panels such as a reflective sheet 23, a backlight 21, a diffusion sheet 25, and the like are provided on the upper surface of the back plate 22 in sequence. The light source refracts and disperses light through each film and the panel, and exits from the light emitting surface 251.

In other embodiments of the present invention, a "┌" shaped middle frame or "[" shaped middle frame, and a display panel and a display device including the "┌" shaped middle frame or "[" shaped middle frame are also provided, which The hollow structure and layered structure are similar to the "┠" shaped middle frame, so I won't repeat them here. Based on the embodiments in the present application, all other embodiments obtained by a person of ordinary skill in the art without making creative efforts fall within the protection scope of the present application.

The above is only the preferred embodiment of the present invention. It should be pointed out that for those of ordinary skill in the art, without departing from the principles of the present invention, several improvements and retouches can be made. These improvements and retouches should also be regarded as This is the protection scope of the present invention.

Claims

A panel middle frame, which has a cross beam and a side beam;

Wherein, the cross beam is vertically connected to a surface of the side beam; the cross beam is provided with several hollow sections.
The panel middle frame of claim 1, wherein the hollowed-out section of the beam is trapezoidal or square.
The middle frame of a panel according to claim 1, wherein the middle frame is one of a "┌" shaped middle frame, a "┠" shaped middle frame, and a "[" shaped middle frame.
A display panel, including:

A backlight module with side and light-emitting surfaces; and

The panel middle frame according to claim 1, wherein the side beam is encapsulated on a side of the backlight module, and the cross beam is encapsulated on an edge of a light emitting surface of the backlight module.
The display panel according to claim 4, further comprising a display layer, including a display surface and a non-display surface opposite to the display surface, the non-display surface is disposed on the beam.
The display panel according to claim 4, wherein there is a first gap between the backlight module and the side beams, and the first gap is filled with a first filler having buffer performance.
The display panel according to claim 6, wherein the first filler is a flexible material, and the flexible material is one of polyethylene, chlorinated polyethylene, polyvinyl chloride, and rubber.
The display panel according to claim 5, wherein there is a second gap between the display layer and the side beams, and the second gap is filled with a second filler having cushioning properties.
The display panel according to claim 8, wherein the second filler is a flexible material, and the flexible material is one of polyethylene, chlorinated polyethylene, polyvinyl chloride, and rubber.
A display device comprising the display panel according to claim 4.