CN216792626U

CN216792626U - Display module and display device

Info

Publication number: CN216792626U
Application number: CN202123424630.6U
Authority: CN
Inventors: 崔盛恩; 张运杰; 蔡正伟; 杨钰彬
Original assignee: Henan Huarui Photoelectric Industry Co ltd
Current assignee: Henan Huarui Photoelectric Industry Co ltd
Priority date: 2021-12-31
Filing date: 2021-12-31
Publication date: 2022-06-21
Anticipated expiration: 2031-12-31

Abstract

The utility model belongs to the technical field of display, and discloses a display module and a display device, which comprise a rubber frame, a light guide structure, a liquid crystal panel and a shading adhesive tape, wherein glue the frame and include the bottom plate and enclose and establish bottom plate curb plate all around, the curb plate is equipped with the step with the junction of bottom plate, make and glue the frame and form first portion and the second portion that holds, light-directing structure sets up in first portion that holds, liquid crystal display panel sets up in the second portion that holds, the shading sticky tape includes first shading portion and sets up the end that stretches out around first shading portion, it includes second shading portion to stretch out the end, first shading portion attaches in one side of light-directing structure towards liquid crystal display panel, second shading portion is attached in the gluey frame (100) one side that second portion that holds is close to liquid crystal display panel (300), the one end that first shading portion was kept away from to the second shading portion flushes with liquid crystal display panel's top edge, can effectively solve display module's light leak problem.

Description

Display module and display device

Technical Field

The utility model relates to the technical field of display, in particular to a display module and a display device.

Background

The backlight module is one of the key components of the liquid crystal display panel. Since the liquid crystal does not emit light, the backlight functions to provide a light source with sufficient brightness and uniform distribution, so that the liquid crystal display panel can normally display images. With the continuous development of backlight module technology, users have higher and higher performance requirements on products, especially want the mobile phone screen with the same external dimension to occupy a larger area, which makes the development of narrow-frame backlight modules increasingly stronger.

At present, for the narrow frame product of the rubber frame with the retaining wall structure, the light leakage problem also occurs due to the narrow effective attaching width of the foam and the liquid crystal panel, and meanwhile, the foam after the reliability test loses efficacy due to viscosity.

SUMMERY OF THE UTILITY MODEL

According to one aspect of the utility model, the utility model provides a display module which can effectively solve the problem of light leakage of the display module.

In order to achieve the purpose, the utility model adopts the following technical scheme:

a display module, comprising:

the rubber frame comprises a bottom plate and side plates arranged around the bottom plate in a surrounding mode, and steps are arranged at the connecting positions of the side plates and the bottom plate, so that the rubber frame forms a first accommodating portion and a second accommodating portion;

the light guide structure is arranged in the first accommodating part and comprises at least one layer of light guide film;

a liquid crystal panel disposed in the second housing portion;

the light shading adhesive tape comprises a first light shading part and a protruding end arranged on the first light shading part, the first light shading part is attached to one side, facing the liquid crystal panel, of the light guide structure, the protruding end comprises a second light shading part, the second light shading part is attached to one side, close to the glue frame of the liquid crystal panel, of the second accommodating part, and one end, far away from the first light shading part, of the second light shading part is flush with the top edge of the liquid crystal panel.

Optionally, the light-shielding adhesive tape is disposed at the outer periphery of the light guide structure and at a joint of the liquid crystal panel and the adhesive frame of the second accommodating portion to form a closed light-shielding adhesive tape loop.

Optionally, a touch screen is disposed on the rubber frame, the extension end further includes a third light-shielding portion connected to the second light-shielding portion, one side of the third light-shielding portion is bonded to the top end surface of the rubber frame, the other side of the third light-shielding portion is bonded to the touch screen, and the first light-shielding portion, the second light-shielding portion, and the third light-shielding portion are Z-shaped.

Optionally, a touch screen is disposed on the frame, the extension end further includes a third shielding portion connected to the second shielding portion, one side of the third shielding portion is bonded to a top wall of the liquid crystal panel, and the other side of the third shielding portion is bonded to the touch screen, and the first shielding portion, the second shielding portion, and the third shielding portion are C-shaped.

Optionally, the shading tape is integrally formed in a bending manner.

Optionally, a positioning protrusion is disposed on a sidewall of the second accommodating portion, the second light-shielding portion is provided with a positioning hole, the positioning protrusion is inserted into the positioning hole, and an outer surface of the positioning protrusion is attached to an inner wall of the positioning hole.

Alternatively, the width of the second light-shielding portion is 0.8mm to 1.5 mm.

Alternatively, the width of the third light-shielding portion is 0.8mm to 2 mm.

Optionally, the side of the light guide structure is provided with an LED lamp bead.

According to another aspect of the present invention, the present invention also provides a display device having an effect of preventing light leakage.

a display device comprises the backlight module.

The utility model has the beneficial effects that:

through setting up the shading sticky tape to make the second shading portion of shading sticky tape set up in the second portion of holding and be close to liquid crystal display panel's gluey frame one side, can absorb the light that reflects on the lateral wall of second portion of holding, and then avoid the light leak phenomenon under the large visual angle.

One side of the first shading part provided with the shading adhesive tape is bonded on the outer periphery of the light guide structure and the step, and the other side of the first shading part is bonded on the liquid crystal panel, so that on one hand, the light guide structure and the liquid crystal panel can be limited, and the light guide structure and the liquid crystal panel are prevented from shaking to influence the display effect; on the other hand, the connection strength between the light guide structure and the liquid crystal panel and the rubber frame can be improved.

Drawings

FIG. 1 is a first cross-sectional view of a backlight module according to the present invention;

FIG. 2 is a second cross-sectional view of the backlight module provided in the present invention;

FIG. 3 is a first schematic structural diagram of a rubber frame according to the present invention;

fig. 4 is a second structural schematic diagram of the rubber frame provided by the present invention.

In the figure:

100. a rubber frame; 110. a base plate; 120. a side plate; 200. a light guide structure; 300. a liquid crystal panel; 410. a first light shielding portion; 421. a second light shielding portion; 422. a third light shielding portion; 423. positioning holes; 500. a touch screen; 600. LED lamp beads; 700. and (5) soaking cotton.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the utility model and are not limiting of the utility model. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.

In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, removably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

In the description of the present embodiment, the terms "upper", "lower", "left", "right", and the like are used based on the orientations and positional relationships shown in the drawings only for convenience of description and simplification of operation, and do not indicate or imply that the referred device or element must have a specific orientation, be configured and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used only for descriptive purposes and are not intended to have a special meaning.

The utility model provides a display module, which can effectively solve the problem of light leakage at the edge of the display module under a large visual angle.

Specifically, as shown in fig. 1, the display module includes a frame 100, a light guide structure 200, a liquid crystal panel 300 and a light shielding tape, wherein, the plastic frame 100 includes a bottom plate 110 and a side plate 120, the side plate 120 is surrounded on the periphery of the bottom plate 110, a step is arranged at the joint of the side plate 120 and the bottom plate 110, the step divides the plastic frame 100 into a first accommodating part and a second accommodating part, the light guide structure 200 is arranged in the first accommodating part, the liquid crystal panel 300 is arranged in the second accommodating part, the shading tape includes a first shading part 410 and a protruding end, the protruding end is arranged on the first shading part 410, one side of the first shading part 410 and one side of the light guide structure 200 facing the liquid crystal panel 300, the protruding end includes a second shading part 421, the first shading part 410 and the second shading part 421 are in L-shaped structures, the second shading part 421 is attached on one side of the second accommodating part close to the plastic frame of the liquid crystal panel 300, and an end of the second light shielding portion 421 away from the first light shielding portion 410 is flush with the top edge of the liquid crystal panel 300.

By arranging the extending end on the first shading part 410 of the shading tape, and bonding one side of the second shading part 421 of the extending end with the side wall of the second accommodating part, and bonding the other side with the side wall of the liquid crystal panel 300, the second shading part 421 is arranged between the second accommodating part and the side wall of the liquid crystal panel 300, as shown in fig. 1, when the light of the backlight source is reflected by the bottom plate 110 of the rubber frame 100 and then enters the side wall of the second accommodating part, the second shading part 421 of the shading tape can absorb the light, thereby preventing the light from entering human eyes after being reflected, and effectively solving the problem of light leakage of the display module. By attaching the first light shielding portion 410 of the light shielding tape to the side of the light guiding structure 200 facing the liquid crystal panel 300, the light guiding structure 200 and the liquid crystal panel 300 can be fixed, and the light guiding structure 200 and the liquid crystal panel 300 are prevented from shaking in the rubber frame 100.

Preferably, the light-shielding tape may be disposed at the outer periphery of the light guide structure 200 and the joint position of the liquid crystal panel 300 and the glue frame 100 of the second receiving portion to form a closed light-shielding tape ring, which can improve the light-shielding effect of the light-shielding tape and is beneficial to preventing light leakage of the display module.

Preferably, in order to improve the light shielding effect, the first light shielding portion 410 may have a ring structure, and the second light shielding portion 421 may be disposed around the first light shielding portion. Of course, the first light-shielding portion 410 and the second light-shielding portion 421 may have other shapes and may be provided as needed.

Further, the second light-shielding portion 421 should be able to completely cover the peripheral side walls of the second accommodating portion, so as to ensure that when the light of the backlight source is reflected to the side walls of the liquid crystal panel 300, the light can be completely absorbed by the second light-shielding portion 421, thereby avoiding entering human eyes after being reflected again, and further avoiding light leakage at the edge of the liquid crystal panel 300.

Further, with reference to fig. 1, the LED lamp bead 600 may be disposed on the side of the light guide structure 200, and the LED lamp bead 600 is used as a backlight source of the liquid crystal panel 300, so that compared with a conventional cold cathode tube, the LED lamp bead 600 has the advantages of low power consumption, low heat generation amount, high brightness, long service life, and the like.

Preferably, with reference to fig. 1, the touch screen 500 is disposed on the rubber frame 100 of the display module, the protruding end further includes a third shielding portion 422, the third shielding portion 422 is connected to the second shielding portion 421, and the third shielding portion 422 is disposed between the rubber frame 100 and the touch screen 500, so as to fix the touch screen 500.

Optionally, with continued reference to fig. 1, in one embodiment, the first shading portion 410, the second shading portion 421 and the third shading portion 422 may be in a Z-shaped structure, one side of the third shading portion 422 may be adhered to the top end surface of the rubber frame 100, and the other side is adhered to the touch screen 500, and the third shading portion 422 may enhance the connection strength between the rubber frame 100 and the touch screen 500.

Alternatively, as shown in fig. 2, in another embodiment, the first light-shielding portion 410, the second light-shielding portion 421 and the third light-shielding portion 422 may be in a C-shaped structure, one side of the third light-shielding portion 422 may also be bonded to the top wall of the liquid crystal panel 300, and the other side is bonded to the touch screen 500, and the light-shielding tape of this structure has a wrapping effect on the edge of the liquid crystal panel 300, so that light leakage at the edge of the liquid crystal panel 300 can be avoided to the greatest extent, the fixing effect on the liquid crystal panel 300 can be enhanced, and the reliability of the operation of the liquid crystal panel 300 can be improved.

Further, the length of the third light-shielding portion 422 may be the same as the length of the second light-shielding portion 421, may be smaller than the length of the second light-shielding portion 421, and may be disposed at intervals along the length direction of the second light-shielding portion 421, and the arrangement manner as long as the touch screen 500 can be fixed on the rubber frame 100 is within the protection scope of the present application. In the present embodiment, the length of the third light shielding portions 422 is the same as the length of the second light shielding portions 421.

Preferably, foam 700 can be arranged between the rubber frame 100 and the touch screen 500, and the touch screen 500 and the rubber frame 100 are bonded together through the foam 700, so that the connection strength between the touch screen 500 and the rubber frame 100 can be improved, and the working reliability of the display module is improved.

As a preferred technical solution, as shown in fig. 3 and 4, the light-shielding tape may be integrally formed by bending, specifically, two seam lines may be drawn on the protruding end, the protruding end is bent by the seam lines to form a desired shape, and the light-shielding tape is integrally formed by bending, on one hand, the production process of the light-shielding tape can be simplified, and as shown in fig. 3, the light-shielding tape can be cut according to the outline of the light-shielding tape; on the other hand, the assembling process of the shading adhesive tape can be simplified, and the shading adhesive tape can be conveniently pasted and positioned only by bending according to a riding line.

Further, with reference to fig. 3, according to the design requirement and the size of the adhesive frame 100, the width of the second light shielding portion 421 may be 0.8mm to 1.5mm, and exemplarily, may be 0.8mm, 0.9mm, 1.0mm, 1.1mm, 1.2mm, 1.3mm, 1.4mm, 1.5mm, and the like, and may be set according to the actual requirement.

Further, with reference to fig. 3, according to design requirements, the width of the third light shielding portion 422 may be 0.8mm to 2mm, and may be, for example, 0.8mm, 1.0mm, 1.2mm, 1.4mm, 1.6mm, 1.8mm, 2.0mm, and the like, and may be set according to actual requirements.

Preferably, in order to improve the pasting precision of the light shielding tape, a positioning protrusion may be disposed on a sidewall of the second accommodating portion, and a positioning hole 423 may be disposed on the second light shielding portion 421, so that the positioning hole 423 is connected to the positioning protrusion, and when the second light shielding portion 421 is pasted, an inner wall of the positioning hole 423 is attached to an outer surface of the positioning protrusion.

Alternatively, in one embodiment, the cross-sectional area of the positioning protrusion is rectangular, and accordingly, the positioning hole 423 is rectangular; in another embodiment, the cross-sectional area of the positioning protrusion is circular, and accordingly, the positioning hole 423 is circular; in other embodiments, the positioning protrusion may have other shapes, and may be arranged according to actual needs. In the present embodiment, the positioning holes 423 are rectangular.

According to the utility model, the shading adhesive tape comprises the extending end, and the second shading part 421 provided with the extending end is attached to one side of the second accommodating part close to the adhesive frame 100 of the liquid crystal panel 300, so that the second shading part 421 can absorb light entering the side wall of the liquid crystal panel 300 after the backlight source is reflected, further the light leakage at the edge of the liquid crystal panel 300 is avoided, and the problem of light leakage at the edge of the display module under a large visual angle is effectively solved. The shading adhesive tape is of an integrally formed structure, so that the production and assembly processes of the shading adhesive tape can be simplified. The accuracy of attaching the second light-shielding portion 421 of the light-shielding tape can be improved by providing the positioning projections on the side walls of the second accommodating portion. By providing the third shading part 422, the connection strength between the touch screen 500 and the rubber frame 100 can be improved, and the reliability of the operation of the display module can be improved.

The utility model also provides a display device which comprises the display module and has the effect of light leakage prevention.

It should be understood that the above-described embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Numerous obvious variations, adaptations and substitutions will occur to those skilled in the art without departing from the scope of the utility model. This need not be, nor should it be exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. A display module, comprising:

the plastic frame (100) comprises a bottom plate (110) and side plates (120) arranged around the bottom plate (110) in a surrounding mode, steps are arranged at the connecting positions of the side plates (120) and the bottom plate (110), and therefore the plastic frame (100) forms a first accommodating portion and a second accommodating portion;

the light guide structure (200), the light guide structure (200) is arranged in the first containing part, and the light guide structure (200) comprises at least one layer of light guide film;

a liquid crystal panel (300), the liquid crystal panel (300) being disposed within the second housing portion;

the shading adhesive tape comprises a first shading portion (410) and a stretching end arranged on the first shading portion (410), the first shading portion (410) is attached to one side, facing the liquid crystal panel (300), of the light guide structure (200), the stretching end comprises a second shading portion (421), the second shading portion (421) is attached to one side, close to the glue frame (100) of the liquid crystal panel (300), of the second containing portion, and one end, far away from the first shading portion (410), of the second shading portion (421) is flush with the top edge of the liquid crystal panel (300).

2. The display module according to claim 1, wherein the light-shielding tape is disposed at an outer periphery of the light guide structure (200) and a joint of the liquid crystal panel (300) and the adhesive frame (100) of the second receiving portion to form a closed light-shielding tape loop.

3. The display module assembly according to claim 1, wherein a touch screen (500) is disposed on the plastic frame (100), the extension end further includes a third shielding portion (422) connected to the second shielding portion (421), one side of the third shielding portion (422) is bonded to the top end surface of the plastic frame (100), the other side of the third shielding portion is bonded to the touch screen (500), and the first shielding portion (410), the second shielding portion (421), and the third shielding portion (422) are Z-shaped.

4. The display module assembly according to claim 1, wherein a touch screen (500) is disposed on the adhesive frame (100), the protruding end further includes a third shielding portion (422) connected to the second shielding portion (421), one side of the third shielding portion (422) is bonded to a top wall of the liquid crystal panel (300), the other side of the third shielding portion is bonded to the touch screen (500), and the first shielding portion (410), the second shielding portion (421), and the third shielding portion (422) are C-shaped.

5. A display module according to any one of claims 1-4, characterised in that the masking tape is integrally formed by bending.

6. The display module assembly according to claim 5, wherein a positioning protrusion is disposed on a sidewall of the second receiving portion, the second light shielding portion (421) has a positioning hole (423), the positioning protrusion is inserted into the positioning hole (423), and an outer surface of the positioning protrusion is attached to an inner wall of the positioning hole (423).

7. The display module according to any one of claims 1-4, wherein the width of the second opaque portion (421) is 0.8 mm-1.5 mm.

8. The display module according to claim 3 or 4, wherein the width of the third light shielding part (422) is 0.8mm to 2 mm.

9. The display module according to claim 1, wherein the side of the light guide structure (200) is provided with LED beads (600).

10. A display device, comprising the display module according to any one of claims 1-9.