CN210222430U - Display module assembly and electronic equipment with ultra-narrow frame backlight - Google Patents

Abstract

The application discloses display module assembly and electronic equipment with super narrow frame backlight, display module assembly includes: the backlight module comprises a light guide plate and a backlight source, wherein the light guide plate and the backlight source are arranged adjacently, and an ink layer is coated on a light emergent surface of the light guide plate close to the side of the backlight source. An electronic device comprises the display module. This application goes out the plain noodles coating printing ink layer at the light guide plate of backlight side, and this printing ink layer can absorb some this side luminous display area's of this side light, reduces the luminance of this side, finally makes the luminance homogeneity of the whole light emitting area of backlight reach the requirement.

Description

Display module assembly and electronic equipment with ultra-narrow frame backlight

Technical Field

The application belongs to the technical field of liquid crystal display, and particularly relates to a display module with an ultra-narrow frame backlight source and electronic equipment.

Background

The current smart phone screen has higher and higher occupation ratio, and the ultra-narrow frame has become a current trend. For a liquid crystal display module with a backlight source, the ultra-narrow frame has higher and higher requirements on the manufacturing process of the backlight source; the display effect of the ultra-narrow frame backlight source is difficult to debug, the conventional standard of the display industry is that the brightness uniformity of a display area is required to be more than 80%, and the design of the conventional backlight source cannot meet the requirement of the ultra-narrow frame backlight source on the display effect.

SUMMERY OF THE UTILITY MODEL

To overcome the above drawbacks and deficiencies of the prior art, the present application provides a display module with an ultra-narrow bezel backlight source and an electronic device.

In order to solve the technical problem, the application is realized by the following technical scheme:

the application provides a display module assembly with super narrow frame backlight, display module assembly includes: the backlight module comprises a light guide plate and a backlight source, wherein the light guide plate and the backlight source are arranged adjacently, and an ink layer is coated on a light emergent surface of the light guide plate close to the side of the backlight source.

Further, in the display module, the light emitting surface of the light guide plate near the backlight source side is coated with the black ink layer.

Further, in the display module, a part of the light emitting surface of the light guide plate close to the backlight source side is coated with the black ink layer.

Further, above-mentioned display module assembly, wherein, the coating thickness of printing ink layer is 4 ~ 10 um.

Further, in the display module, the coating height of the ink layer is 0.8-1.8 mm.

Further, in the display module, the ink layer is coated by spraying or printing.

The application also provides an electronic device, which comprises the display module.

Compared with the prior art, the method has the following technical effects:

this application goes out the local black printing ink layer that coats of light guide plate plain noodles in the backlight side, and this black printing ink layer can absorb some this side luminous display area's of this side light, reduces the luminance of this side, finally makes the luminance homogeneity of the whole light emitting area of backlight reach the requirement, promptly, this luminance homogeneity is greater than 80%.

Drawings

Other features, objects and advantages of the present application will become more apparent upon reading of the following detailed description of non-limiting embodiments thereof, made with reference to the accompanying drawings in which:

FIG. 1: the display module with the ultra-narrow frame backlight source is in a front view;

FIG. 2: the application provides a longitudinal section view of a display module with an ultra-narrow frame backlight source;

FIG. 3: a partial enlarged view at N as shown in fig. 2;

FIG. 4: a front view of the light guide plate in the present application;

FIG. 5: a longitudinal sectional view of the light guide plate in the present application;

FIG. 6: as shown in the enlarged partial view at P in fig. 5.

Detailed Description

The conception, specific structure and technical effects of the present application will be further described in conjunction with the accompanying drawings to fully understand the purpose, characteristics and effects of the present application.

As shown in fig. 1 to 6, a display module having an ultra-narrow bezel backlight source, the display module M includes: the light guide plate 10 and the backlight 20 are adjacently arranged, wherein an ink layer 11 is coated on a light emitting surface of the light guide plate 10 close to the backlight 20 side. In this embodiment, the ink layer 11 is coated on the light emitting surface of the light guide plate 10 on the backlight 20 side, and the ink layer 11 can absorb a part of light emitted from the light emitting display area on the side, so as to reduce the brightness on the side, and finally, the brightness uniformity of the whole light emitting surface of the backlight 20 meets the requirement.

Where M1 in fig. 1 denotes a light-emitting region boundary of the backlight 20.

In this embodiment, the backlight 20 is preferably an LED backlight.

Generally, the distance between the backlight 20 with the ultra-narrow frame and the light emitting display area of the backlight 20 is very small, generally less than 1.8mm, and too close distance between the backlight 20 and the light emitting display area results in more light being emitted therefrom, and as a result, the brightness of the light emitting display area near the side of the backlight 20 is much brighter than that of other areas, and as a result, the brightness uniformity is not satisfactory. Then, in order to further improve the brightness uniformity of the entire light emitting surface of the backlight 20, the black ink layer 11 is coated on the light emitting surface of the light guide plate 10 near the backlight 20. The black ink layer 11 can absorb a part of light in the light emitting display area on the backlight 20 side, and reduce the brightness on the side, so that the brightness uniformity of the whole light emitting surface of the backlight 20 meets the requirement.

Further, a black ink layer 11 is coated on a part of the light emitting surface of the light guide plate 10 near the backlight 20 side, wherein the part can be referred to as shown in fig. 3 to 6.

In this embodiment, the coating thickness of the ink layer 11 is preferably 4 to 10 um.

Since the distance from the backlight source 20 with the ultra-narrow frame to the light-emitting display area is very small, generally less than 1.8mm, the coating height of the ink layer 11 is not higher than 1.8mm, and preferably, the coating height of the ink layer 11 is 0.8-1.8 mm.

Of course, when the ink layer 11 is applied to the light guide plate 10, the ink layer may be applied by spraying or printing.

As shown in fig. 3, the light guide plate 10 and the backlight 20 of the display module M of the present embodiment further include: the backlight module comprises a light shading glue 50, a brightness enhancement film 40, a diffusion film 30, an emission film, a backlight source 20 and an FPC 70, wherein the diffusion film 30, the brightness enhancement film 40 and the light shading glue 50 are sequentially arranged on a light-emitting surface of the light guide plate 10 from inside to outside; the reflection film 60 and the FPC 70 are further disposed on the opposite side of the light exit surface of the light guide plate 10, wherein the FPC 70 is fixed to the light guide plate 10 disposed on one side thereof by a double-sided adhesive tape 90, and the FPC 70 is further fixed to an iron frame 80 disposed on the other side thereof by a double-sided adhesive tape 90; and the bezel 80 is further extended to be disposed outside the reflective film 60.

The light shielding adhesive 50 is preferably a black double-sided tape, and plays roles in fixing, sealing and shielding light; the brightness enhancement film 40 can improve the brightness of a light source; the diffusion film 30 can correct light rays to form a uniform surface light source so as to achieve an optical diffusion effect; the light guide plate 10 transmits light to change a point light source into a surface light source; the reflective film 60 is used for reflecting light; FPC 70, a FlexiblePrinted Circuit, a flexible printed Circuit board made of polyimide or polyester film as a base material, which has high reliability and is excellent; the backlight 20 is a light source located behind a Liquid Crystal Display (LCD).

The application also provides electronic equipment, which comprises the display module M.

The electronic device includes, but is not limited to, a mobile phone, a tablet computer, a wearable device, an in-vehicle device, an Augmented Reality (AR)/Virtual Reality (VR) device, a notebook computer, an ultra-mobile personal computer (UMPC), a netbook, a Personal Digital Assistant (PDA), and other electronic devices, and the embodiment of the present application does not limit the specific type of the electronic device.

This application goes out the local black printing ink layer that coats of light guide plate plain noodles in the backlight side, and this black printing ink layer can absorb some this side luminous display area's of this side light, reduces the luminance of this side, finally makes the luminance homogeneity of the whole light emitting area of backlight reach the requirement, promptly, this luminance homogeneity is greater than 80%. The method has certain operability and practicability and has wide market application prospect.

The above embodiments are merely to illustrate the technical solutions of the present application and are not limitative, and the present application is described in detail with reference to preferred embodiments. It will be understood by those skilled in the art that various modifications and equivalent arrangements may be made in the present invention without departing from the spirit and scope of the present invention and shall be covered by the appended claims.

Claims (7)

1. The utility model provides a display module assembly with super narrow frame backlight which characterized in that, display module assembly includes: the backlight module comprises a light guide plate and a backlight source, wherein the light guide plate and the backlight source are arranged adjacently, and an ink layer is coated on a light emergent surface of the light guide plate close to the side of the backlight source.

2. The display module according to claim 1, wherein a black ink layer is coated on the light emitting surface of the light guide plate near the backlight side.

3. The display module according to claim 2, wherein a part of the light-emitting surface of the light guide plate near the backlight side is coated with a black ink layer.

4. The display module according to claim 1, wherein the coating thickness of the ink layer is 4-10 um.

5. The display module according to any one of claims 1 to 4, wherein the coating height of the ink layer is 0.8-1.8 mm.

6. The display module according to any one of claims 1 to 4, wherein the ink layer is applied by spraying or printing.

7. An electronic device, comprising the display module according to any one of claims 1 to 6.

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