CN220855634U - Display module and electronic equipment - Google Patents

Abstract

The utility model discloses a display module and electronic equipment, wherein the display module comprises a cover plate, a display screen and a glue layer, and the cover plate can transmit light; the display screen comprises a touch layer, wherein the touch layer is provided with an outer surface facing the cover plate, and a light resistance layer is coated on the outer surface of the touch layer so as to reduce the reflectivity of light; the adhesive layer is connected between the cover plate and the display screen, and the adhesive layer can deform to reduce the stress of the display screen. The display screen of the display module is not easy to generate the phenomenon of buckling, so that the problem that the packaging layer of the display screen is easy to crack is avoided, and the yield is improved.

Description

Display module and electronic equipment

Technical Field

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

Background

Currently, a display screen of an electronic device such as a mobile phone, a tablet and the like is usually matched with a cover plate, and a bending angle is designed at the edge of the cover plate, so that a curved surface fitting corner is formed at the intersection (corner) of different edges of the cover plate, and the display screen needs to be fitted with the curved surface fitting corner.

The display screen is often packaged by the inorganic layer, and the touch control layer at the outermost layer of the display screen is often also used as a dielectric layer, so that the inorganic layer is not ductile, and the display screen is easy to break at the bending position.

Disclosure of utility model

The present utility model aims to solve at least one of the technical problems in the related art to some extent.

Therefore, the embodiment of the utility model provides the display module, the display screen of the display module is not easy to generate the phenomenon of buckling, the problem that the packaging layer of the display screen is easy to crack is avoided, and the yield is improved.

The embodiment of the utility model also provides electronic equipment applying the display module.

The display module of the embodiment of the utility model comprises:

A cover plate, the cover plate being light-permeable;

The display screen comprises a touch control layer, wherein the touch control layer is provided with an outer surface facing the cover plate, and a light resistance layer is coated on the outer surface of the touch control layer so as to reduce the reflectivity of light;

And the adhesive layer is connected between the cover plate and the display screen and can deform to reduce the stress of the display screen.

The display screen of the display module provided by the embodiment of the utility model is not easy to generate the phenomenon of buckling, so that the problem that the packaging layer of the display screen is easy to crack is avoided, and the yield is improved.

In some embodiments, the glue layer has a thickness dimension of 175um to 200um.

In some embodiments, the photoresist layer is an RGB photoresist layer.

In some embodiments, the glue layer is an OCA optical glue.

In some embodiments, the display module has a thickness dimension of 1mm to 1.2mm.

In some embodiments, the display screen includes a first planar region and a first curved region connected, the first curved region having an extension component along a normal direction of the first planar region, and a distance Z between an outer edge of the first curved region and the first planar region in the normal direction is 0.5mm to 0.65mm.

In some embodiments, the display screen includes a plurality of screen sides, the screen sides are in a flange shape, the plurality of screen sides are sequentially arranged along the circumferential direction of the display screen, and the intersection of at least part of adjacent two screen sides forms the first bending area.

In some embodiments, the cover plate includes a second plane area and a plurality of second bending areas, the second bending areas are arranged at intervals along the circumferential direction of the cover plate and connected to corners of the second plane area, the display screen includes a plurality of first bending areas, the first bending areas are arranged at intervals along the circumferential direction of the display screen and connected to corners of the first plane area, the first plane area is attached to the second plane area, and the first bending areas are attached to the second bending areas in a one-to-one correspondence manner.

In some embodiments, the display screen includes a circuit layer, a light emitting layer, and an encapsulation layer, the light emitting layer being disposed between the circuit layer and the encapsulation layer, the encapsulation layer being disposed between the light emitting layer and the touch layer.

The electronic device of the embodiment of the utility model comprises the display module set in any one of the above embodiments.

Drawings

Fig. 1 is a schematic partial sectional view of a display module according to an embodiment of the utility model.

Fig. 2 is a schematic top view of an electronic device according to an embodiment of the utility model.

Fig. 3 is an enlarged partial schematic view at a in fig. 2.

Fig. 4 is a schematic cross-sectional view at B in fig. 3.

Reference numerals:

A cover plate 1; a second planar region 11; a second bending zone 12;

A display screen 2; a Panel layer 21; the SCF layer 22; a first planar region 23; a first bending zone 24; an outer edge 241;

and a glue layer 3.

Detailed Description

Reference will now be made in detail to embodiments of the present utility model, examples of which are illustrated in the accompanying drawings. The embodiments described below by referring to the drawings are illustrative and intended to explain the present utility model and should not be construed as limiting the utility model.

In the related art, the display screen is mostly packaged by an inorganic layer, and the touch layer at the outermost layer of the display screen also mostly uses the inorganic layer as a dielectric layer, and the inorganic layer has no ductility, so that the display screen is easy to break at a bending position. In addition, when the display screen is attached to the corner of the curved surface, the display screen is subjected to stress generated by bending of the display screen, and is also subjected to extrusion and buckling generated in two directions of the long side and the short side of the cover plate, so that breakage is more easy to occur.

In the related art, although the wrinkles of the display screen can be relieved by using a manufacturing process, the PVA polarizing layer of the polarizer in the display screen still has obvious shrinkage after being subjected to high temperature and high humidity, so that the wrinkles are aggravated, and further the package layer is broken.

As shown in fig. 1, the display module of the embodiment of the utility model includes a cover plate 1, a display screen 2 and an adhesive layer 3. The cover plate 1 is covered above the display screen 2, the adhesive layer 3 is arranged between the cover plate 1 and the display screen 2, and the display screen 2 is adhered and fixed with the cover plate 1 through the adhesive layer 3.

The cover plate 1 can transmit light; for example, the cover plate 1 may be substantially rectangular, and the material of the cover plate 1 may be glass. The light emitted from the display screen 2 can pass through the cover plate 1, thereby realizing display requirements.

The display screen 2 includes a touch layer (direct on cell touch, DOT for short), which is also generally rectangular, and has an outer surface facing the cover plate 1, as shown in fig. 1, where the outer surface of the touch layer is an upper surface of the touch layer, and a photoresist layer may be coated on the outer surface of the touch layer, and may specifically be a Pol-less RGB low Wen Guangzu layer, where the photoresist layer may reduce the reflectivity of light and may enhance the display effect.

The glue film 3 specifically can be OCA optical cement, and glue film 3 presss from both sides between apron 1 and display screen 2, and glue film 3 can play the effect of bonding fixed apron 1 and display screen 2 on the one hand, and on the other hand glue film 3 has certain elastic deformation performance to can alleviate the stress of display screen 2 through the mode of deformation, play the effect of protection display screen 2.

According to the display module provided by the embodiment of the utility model, the original polaroid is replaced by coating the photoresist on the touch layer, so that on one hand, the phenomenon that the display screen 2 is wrinkled due to obvious shrinkage of the PVA polarizing layer in the polaroid when the PVA polarizing layer is stretched can be avoided, the packaging layer is broken, the thermal shrinkage stress of materials is reduced, on the other hand, the thickness of the photoresist layer is far lower than that of the polaroid, the display screen 2 is lighter and thinner, the display screen 2 can have better deformability, the display screen 2 is not easy to break when being attached to the cover plate 1, and the yield is further improved.

Secondly, the adhesive layer 3 can reduce the stress of the display screen 2 in a deformation mode, and the display module greatly reduces the probability of damaging the display screen 2 in the two stress elimination modes.

In some embodiments, the thickness dimension of the glue layer 3 is 175um to 200um. For example, as shown in fig. 1, the thickness dimension of the adhesive layer 3 may be a dimension M1, and the thickness dimension M1 may be 175um, 185um, 190um, 195um, 200um, or the like. Therefore, on one hand, the cover plate 1 and the display screen 2 can be firmly bonded, on the other hand, the thicker adhesive layer 3 has better buffering deformation performance and larger deformation, so that the stress of the display screen 2 can be fully relieved and released through the deformation of the adhesive layer 3, and the situation that the inorganic layer of the display screen 2 is damaged is further avoided.

In some embodiments, the thickness dimension of the display module is 1mm to 1.2mm. For example, as shown in fig. 1, the thickness dimension of the display module of the present utility model may be a dimension M, and the thickness dimension M of the display module may be specifically 1mm, 1.1mm, 1.2mm, or the like. Therefore, the display module is lighter and thinner, and the display screen 2 is prevented from being damaged.

In some embodiments, the display screen 2 includes a first planar region 23 and a first curved region 24 connected, the first curved region 24 having an extension component along a normal direction of the first planar region 23, and a distance Z between an outer edge 241 of the first curved region 24 and the first planar region 23 in the normal direction is 0.5mm to 0.65mm.

For example, as shown in fig. 4, the first planar region 23 may be generally rectangular flat plate, and the first bending region 24 may be integrally formed at a peripheral edge position of the first planar region 23, and the first bending region 24 may have a certain bending curvature and extend generally downward in a bending manner. The first bending zone 24 has oppositely arranged inner and outer edges 241, wherein the inner edge is connected to the first planar zone 23 and the outer edge 241 is the free side of the first bending zone 24.

The distance Z between the outer edge 241 of the first bending zone 24 and the first planar zone 23 in the up-down direction may be any value between 0.5mm and 0.65mm, for example, the distance Z may be 0.5mm, 0.57mm, 0.59mm, 0.60mm, 0.63mm, 0.65mm. Compared with the original display screen 2, the bending amplitude of the distance Z is greatly increased, so that the joint requirement of the bent cover plate 1 part is fully met, and the situation that the bending stress and the cover plate 1 are damaged under the extrusion action is avoided.

In some embodiments, the display screen 2 includes a plurality of screen sides that are in a flange shape, the plurality of screen sides are sequentially arranged along a circumferential direction of the display screen 2, and a junction of at least a portion of adjacent two screen sides forms the first bending region 24.

For example, the display screen 2 may be substantially rectangular, and the plurality of screen sides of the display screen 2 may include two long sides oppositely arranged in the left-right direction and two short sides oppositely arranged in the up-down direction. Both the long side and the short side may be turned-up, whereby the display screen 2 generally assumes the shape of a cover. And the first bending areas 24 can be formed at the junction of each long side and the corresponding short side, namely, four first bending areas 24 can be formed, and four first bending areas 24 can be respectively positioned at four corner positions of the display screen 2, so that the display screen 2 is matched with the shape of the existing cover plate 1.

In some embodiments, the cover 1 includes a second planar area 11 and a plurality of second curved areas 12, the plurality of second curved areas 12 are arranged at intervals along the circumference of the cover 1 and connected to corners of the second planar area 11, the display 2 includes a plurality of first curved areas 24, the plurality of first curved areas 24 are arranged at intervals along the circumference of the display 2 and connected to corners of the first planar area 23, the first planar area 23 is attached to the second planar area 11, and the plurality of first curved areas 24 are attached to the plurality of second curved areas 12 in a one-to-one correspondence.

For example, as shown in fig. 2 to 4, the second flat surface region 11 may also have a substantially rectangular flat plate shape, and the second bending region 12 may be provided with four, and the four second bending regions 12 may be disposed at four corner positions of the second flat surface region 11, respectively. The display screen 2 can also be provided with a first flat area 23 and four first curved areas 24, adapted to the shape of the cover plate 1

When the display screen 2 is assembled, the first plane area 23 of the display screen 2 can be attached to the second plane area 11 of the cover plate 1, and the plurality of first bending areas 24 of the display screen 2 can be attached to the plurality of second bending areas 12 of the cover plate 1 in a one-to-one correspondence manner. Because the long side and the short side of the cover plate 1 are extruded, the display screen 2 can be stressed at each first bending area 24, and the display screen 2 of the embodiment can fully relieve the crease and fracture caused by the stress under the action of better deformability and the adhesive layer 3, so that the yield of the assembly of the display screen 2 and the cover body is improved.

In some embodiments, the display screen 2 includes a circuit layer (TFT layer), a light emitting layer (EL layer), and an encapsulation layer (TFE layer), the light emitting layer being disposed between the circuit layer and the encapsulation layer, the encapsulation layer being disposed between the light emitting layer and the touch layer. It should be noted that, as shown in fig. 1, the display screen 2 includes a Panel layer 21 and a protective film layer 22, where the Panel layer 21 may include a circuit layer, a light emitting layer, a packaging layer, a touch layer, and a photoresist layer, and the touch layer may be disposed between the packaging layer and the photoresist layer; the protective film 22 may be SCF (super clean foam).

The electronic device of the embodiment of the utility model is described below.

The electronic device in the embodiment of the utility model comprises a display module, wherein the display module can be the display module described in the embodiment, and the electronic device can be a mobile phone, a tablet personal computer, a notebook, an electronic watch and other electronic devices. Of course, the display module can also be other electronic devices which need to use the display module.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present utility model, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; may be mechanically connected, may be electrically connected or may be in communication with each other; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present utility model, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.

For purposes of this disclosure, the terms "one embodiment," "some embodiments," "example," "a particular example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.

While the above embodiments have been shown and described, it should be understood that the above embodiments are illustrative and not to be construed as limiting the utility model, and that variations, modifications, alternatives, and variations of the above embodiments may be made by those of ordinary skill in the art without departing from the scope of the utility model.

Claims (10)

1. A display module, comprising:

A cover plate, the cover plate being light-permeable;

The display screen comprises a touch control layer, wherein the touch control layer is provided with an outer surface facing the cover plate, and a light resistance layer is coated on the outer surface of the touch control layer so as to reduce the reflectivity of light; the display screen comprises a first plane area and a first bending area which are connected, wherein the first bending area has an extension component along the normal direction of the first plane area;

And the adhesive layer is connected between the cover plate and the display screen and can deform to reduce the stress of the display screen.

2. The display module of claim 1, wherein the glue layer has a thickness dimension of 175um to 200um.

3. The display module of claim 1, wherein the photoresist layer is an RGB photoresist layer.

4. The display module of claim 1, wherein the glue layer is OCA optical glue.

5. The display module of claim 1, wherein the display module has a thickness dimension of 1mm to 1.2mm.

6. The display module of claim 1, wherein a distance Z between an outer edge of the first curved region and the first planar region in the normal direction is 0.5mm to 0.65mm.

7. The display module of claim 6, wherein the display screen includes a plurality of screen sides, the screen sides are in a flange shape, the plurality of screen sides are sequentially arranged along a circumferential direction of the display screen, and an intersection of at least part of adjacent two screen sides forms the first bending region.

8. The display module of claim 6, wherein the cover plate comprises a second planar area and a plurality of second curved areas, the second curved areas are arranged at intervals along the circumferential direction of the cover plate and connected to corners of the second planar area, the display screen comprises a plurality of first curved areas, the first curved areas are arranged at intervals along the circumferential direction of the display screen and connected to corners of the first planar area, the first planar area is attached to the second planar area, and the first curved areas are attached to the second curved areas in a one-to-one correspondence.

9. The display module of any one of claims 1-8, wherein the display screen comprises a circuit layer, a light emitting layer, and an encapsulation layer, the light emitting layer being disposed between the circuit layer and the encapsulation layer, the encapsulation layer being disposed between the light emitting layer and the touch layer.

10. An electronic device comprising a display module according to any of the preceding claims 1-9.