阅读说明：本技术 显示模组及其全贴合方法 (Display module and full-lamination method thereof ) 是由 余朋飞 宋涛 屠桂朋 于 2019-08-22 设计创作，主要内容包括：本揭示提供一种显示模组及其全贴合方法,显示模组包括盖板、玻璃基板、显示面板以及粘接层,其中盖板包括可视化区以及围绕可视化区四周的油墨区；玻璃基板结合于盖板,其外边缘对应于油墨区内；显示面板位于玻璃盖板远离盖板的一侧；粘接层设置于玻璃基板和显示面板之间,包括主体部和外扩部,外扩部位于主体部四周边缘,外扩部的外边缘在玻璃基板上的正投影位于玻璃基板外部,通过将光学胶外扩以超出玻璃基板,并对显示模组进行侧边UV固化,使得外扩出玻璃基板的部分光学胶固化成型,避免外界水汽等杂质进入显示模组内部,且通过两次脱泡处理,可有效改善盲孔产品的盖板的可视化区与油墨区交界处出现气泡现象。(The display module comprises a cover plate, a glass substrate, a display panel and an adhesive layer, wherein the cover plate comprises a visual area and an ink area surrounding the periphery of the visual area; the glass substrate is combined with the cover plate, and the outer edge of the glass substrate corresponds to the ink area; the display panel is positioned on one side of the glass cover plate far away from the cover plate; the adhesive linkage sets up between glass substrate and display panel, include the main part and expand the portion outward, expand the portion outward and be located main part edge all around, the outer orthographic projection of expanding the outward flange of portion on glass substrate is located the glass substrate outside outward, through expanding the optical cement outward in order to surpass the glass substrate, and carry out the side UV solidification to display module assembly, make the partial optical cement solidification shaping of expanding the glass substrate outward, avoid impurity such as external steam to get into inside the display module assembly, and through twice deaeration treatment, the bubble phenomenon appears in visual district and the printing ink district juncture of the apron that can effectively improve the blind hole product.)

1. A display module, comprising:

the cover plate comprises a visualization area and an ink area surrounding the periphery of the visualization area;

a glass substrate bonded to the cover plate, an outer edge of the glass substrate corresponding to within the ink region;

the display panel is positioned on one side of the glass cover plate, which is far away from the cover plate; and

the bonding layer is arranged between the glass substrate and the display panel and comprises a main body part and an outward expansion part, and the outward expansion part is positioned on the peripheral edge of the main body part;

wherein an orthographic projection of the outer edge of the flaring portion on the glass substrate is located outside the glass substrate.

2. The display module of claim 1, wherein an orthographic projection of the outer edge of the flared portion on the glass substrate coincides with an outer edge of the ink region.

3. The display module according to claim 1, further comprising a polarizer disposed on a side of the display panel close to the cover plate, wherein a blind hole is disposed on the polarizer, the blind hole corresponds to the visualization area of the cover plate, and the adhesive layer is completely attached to a sidewall and a bottom of the blind hole.

4. The display module according to claim 1 or 3, wherein the adhesive layer is UV-type OCA optical adhesive.

5. The display module of claim 1, wherein the display panel is a liquid crystal display panel or an OLED display panel.

6. The display module according to claim 1, wherein the display module is a touch display module.

7. The full-laminating method of the display module is characterized by comprising the following steps of:

step S10: in a vacuum environment, aligning and attaching the bonding layer and the cover plate combined with the glass substrate together;

step S20: aligning and attaching the cover plate and the display panel together in a vacuum environment;

step S30: performing primary defoaming treatment on the bonding layer;

step S40: carrying out UV irradiation on the front surface of the display module by adopting a UV irradiation device so as to solidify the main body part of the bonding layer; and

step S50: and UV irradiation is carried out on the side surface of the display module by adopting the UV light irradiation device so as to solidify the outward expansion part of the bonding layer.

8. The full-lamination method for display modules according to claim 7, wherein in step S40, after the adhesive layer is subjected to a primary defoaming treatment, the blind holes formed in the polarizer are shielded by a light shield to cure the main body portion of the adhesive layer.

9. The full-lamination method for the display module according to claim 8, wherein the step S50 further comprises: and carrying out secondary defoaming treatment on the bonding layer in the blind hole, and then carrying out UV irradiation on the side surface of the display panel by adopting the UV irradiation device so as to solidify the outward expansion part of the bonding layer.

10. The full-lamination method of a display module according to claim 7, wherein the adhesive layer is UV-type OCA optical adhesive.

Technical Field

The disclosure relates to the technical field of display, in particular to a display module and a full-lamination method thereof.

Background

The full lamination (full lamination) refers in particular to a process of laminating a touch screen and a display together in the touch display industry, and the full lamination process can make the screen look more transparent, enhance the display effect of the screen, protect the screen and isolate the screen from external foreign matters.

The existing display module is formed by connecting a cover plate and a display panel in a full-fitting manner, wherein the cover plate comprises a Visual Area (VA) and an ink area (BM); the blind hole product is characterized in that holes are formed in the polaroid, the requirements for defoaming of the blind hole area and the inner area of the blind hole area are inconsistent, the whole bubbles of the blind hole product cannot be processed through one-time defoaming, and the blind hole product can be cured by the aid of the adhesive material after being defoamed in the blind hole product in a full-fitting production process.

In summary, it is desirable to provide a new display module and a full-lamination method thereof to solve the above technical problems.

Disclosure of Invention

The invention provides a display module and a full-lamination method thereof, and solves the technical problems that bubbles are easily generated at the junction of a visual area of a cover plate and a printing ink area and external water vapor easily enters the display module from the side when the cover plate and a display panel of the conventional display module are fully laminated.

In order to solve the above problems, the technical solution provided by the present disclosure is as follows:

the disclosed embodiment provides a display module, including:

the cover plate comprises a visualization area and an ink area surrounding the periphery of the visualization area;

a glass substrate bonded to the cover plate, an outer edge of the glass substrate corresponding to within the ink region;

the display panel is positioned on one side of the glass cover plate, which is far away from the cover plate; and

the bonding layer is arranged between the glass substrate and the display panel and comprises a main body part and an outward expansion part, and the outward expansion part is positioned on the peripheral edge of the main body part;

wherein an orthographic projection of the outer edge of the flaring portion on the glass substrate is located outside the glass substrate.

According to the display module provided by the embodiment of the disclosure, an orthographic projection of the outer edge of the outward expansion part on the glass substrate is coincided with the outer edge of the ink area.

According to the display module that this reveres embodiment provides, the display module still includes the polaroid, the polaroid set up in display panel is close to one side of apron, be provided with the blind hole on the polaroid, wherein, the blind hole corresponds to the apron visual region, the adhesive linkage with the lateral wall and the bottom of blind hole laminate completely.

According to the display module assembly that this reveals the embodiment provides, the adhesive linkage is UV type OCA optical cement.

According to the display module provided by the embodiment of the disclosure, the display panel is a liquid crystal display panel or an OLED display panel.

According to the display module provided by the embodiment of the disclosure, the display module is a touch display module.

The embodiment of the disclosure provides a full-lamination method of a display module, which comprises the following steps:

step S10: in a vacuum environment, aligning and attaching the bonding layer and the cover plate combined with the glass substrate together;

step S20: aligning and attaching the cover plate and the display panel together in a vacuum environment;

step S30: performing primary defoaming treatment on the bonding layer;

step S40: carrying out UV irradiation on the front surface of the display module by adopting a UV irradiation device so as to solidify the main body part of the bonding layer; and

step S50: and UV irradiation is carried out on the side surface of the display module by adopting the UV light irradiation device so as to solidify the outward expansion part of the bonding layer.

According to the full-lamination method of the display module provided by the embodiment of the disclosure, in the step S40, after the adhesive layer is subjected to the primary defoaming treatment, the blind hole formed in the polarizer is shielded by using the light shield to cure the main body portion of the adhesive layer.

According to the full-lamination method of the display module provided by the embodiment of the disclosure, in the step S50, the method further includes: and carrying out secondary defoaming treatment on the bonding layer in the blind hole, and then carrying out UV irradiation on the side surface of the display panel by adopting the UV irradiation device so as to solidify the outward expansion part of the bonding layer.

According to the full-lamination method of the display module, the bonding layer is UV type OCA optical cement.

The beneficial effects of this revelation do: according to the display module and the full-laminating method thereof, the optical cement is expanded to exceed the glass substrate, and the display module is subjected to side UV curing, so that part of the optical cement expanded out of the glass substrate is cured and formed, impurities such as external water vapor are prevented from entering the display module, and through twice defoaming treatment, the bubble phenomenon at the junction of the visual area and the printing ink area of the cover plate of the blind hole product can be effectively improved.

Drawings

In order to illustrate the embodiments or the technical solutions in the prior art more clearly, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some of the disclosed embodiments, and that other drawings can be obtained by those skilled in the art without inventive effort.

Fig. 1 is a schematic cross-sectional structure view of a display module according to an embodiment of the disclosure;

fig. 2 is a schematic plan view illustrating a display module according to an embodiment of the disclosure;

fig. 3 is a schematic cross-sectional structure view of another display module according to an embodiment of the disclosure;

fig. 4 is a schematic cross-sectional structure view of a display module provided with a blind hole according to a first embodiment of the disclosure;

fig. 5 is a flowchart of a full-lamination method of a display module according to a second embodiment of the disclosure.

Detailed Description

The following description of the various embodiments refers to the accompanying drawings, which illustrate specific embodiments in which the disclosure may be practiced. Directional phrases used in this disclosure, such as [ upper ], [ lower ], [ front ], [ back ], [ left ], [ right ], [ inner ], [ outer ], [ side ], etc., refer only to the directions of the attached drawings. Accordingly, the directional terms used are used for the purpose of illustration and understanding of the present disclosure, and are not used to limit the present disclosure. In the drawings, elements having similar structures are denoted by the same reference numerals.

This revelation is to prior art's display module assembly and full laminating method, and when apron and display panel carried out full laminating, the visual district of apron was very easily produced the bubble and outside steam and is easily got into the display module assembly from the side with printing ink district juncture, and this defect can be solved to this embodiment.