CN108107619B

CN108107619B - Display module structure and terminal equipment

Info

Publication number: CN108107619B
Application number: CN201711441015.1A
Authority: CN
Inventors: 王尊伟; 党进; 曾长启; 袁鹏
Original assignee: Shanghai Spreadrise Technologies Co Ltd
Current assignee: Shanghai Chuanying Information Technology Co Ltd
Priority date: 2017-12-26
Filing date: 2017-12-26
Publication date: 2021-06-08
Anticipated expiration: 2037-12-26
Also published as: CN108107619A

Abstract

The embodiment of the invention discloses a display module structure, which comprises: glass apron and with the display module assembly that glass apron bonded, display module assembly includes: the glass cover plate comprises first glass and second glass, wherein the first glass is bonded with the glass cover plate and arranged in parallel with the glass cover plate, the second glass is bonded with the first glass and arranged in parallel with the first glass, the length of a long edge of the second glass is larger than that of a long edge of the first glass, and a cavity formed between the second glass and the glass cover plate comprises a first bonding material. This display module assembly structure can reduce the broken risk in the individual layer district of display module assembly's second glass, increases LCD's ITO end intensity promptly to increase LCD's bulk strength, make the display module assembly be difficult for breakage.

Description

Display module structure and terminal equipment

Technical Field

The invention relates to the field of terminal equipment, in particular to a display module structure and terminal equipment.

Background

With the wide use of touch screens and the continuous development of Liquid Crystal Displays (LCDs), the popularization of full-screen terminal equipment is certainly a big trend, and the full-screen effect of the terminal equipment can be realized through a full-screen Display module. Because the LCD implementing the full-screen display includes an ITO end, also called transparent conductive film glass and Indium tin oxide glass, the ITO end is usually single-layer glass, and the ITO end of the LCD used by many full-screen display modules includes a chamfer (generally two bevels), for example, the LCD of a mobile phone is in a shape that two lower corners are cut off, there is a problem that the ITO end of the LCD is easily broken due to insufficient strength, and particularly, the LCD is easily broken in the whole design, reliability analysis process and transportation process of the full-screen display module or the terminal device.

Disclosure of Invention

The embodiment of the invention provides a display module structure and terminal equipment, which can reduce the risk of breaking a second glass single-layer region in a display module, namely increase the ITO (indium tin oxide) end strength of an LCD (liquid crystal display), thereby increasing the overall strength of the LCD and ensuring that the display module is not easy to break.

In a first aspect, an embodiment of the present invention provides a display module structure, including: a glass cover plate and a display module adhered with the glass cover plate,

the display module assembly includes: the glass cover plate comprises first glass and second glass, wherein the first glass is bonded with the glass cover plate and arranged in parallel with the glass cover plate, the second glass is bonded with the first glass and arranged in parallel with the first glass, the length of a long edge of the second glass is larger than that of a long edge of the first glass, and a cavity formed between the second glass and the glass cover plate comprises a first bonding material.

In a second aspect, an embodiment of the present invention provides a terminal device, including the display module structure according to the first aspect.

According to the embodiment of the invention, the second glass, especially the area with the oblique angle of the second glass, can be protected by adding a proper bonding material in the cavity formed between the second glass and the glass cover plate, so that the strength of the display module is enhanced and is not easy to break, namely the strength of the ITO end of the LCD can be increased, and the risk of breaking the display module is reduced.

Drawings

In order to more clearly illustrate the technical solution of the embodiment of the present invention, the drawings used in the description of the embodiment will be briefly introduced below.

Fig. 1 is a schematic front view of a display module according to an embodiment of the present invention;

fig. 2 is a schematic right-view diagram of a display module according to an embodiment of the invention;

fig. 3 is a schematic right-view diagram of a display module structure according to an embodiment of the invention;

fig. 4 is a schematic front view of a display module structure according to an embodiment of the present invention;

fig. 5 is a schematic right-view diagram of a display module structure according to an embodiment of the invention;

FIG. 6 is a schematic diagram of a chamfer provided by an embodiment of the present invention;

FIG. 7 is a schematic front view of another display module structure according to an embodiment of the present invention;

fig. 8 is a right-view schematic diagram of another display module structure according to an embodiment of the invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, not all, embodiments of the present invention. Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the invention. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. It is explicitly and implicitly understood by one skilled in the art that the embodiments described herein can be combined with other embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The terms "first," "second," and the like in the description and claims of the present invention and in the above-described drawings are used for distinguishing between different objects and not for describing a particular order. Furthermore, the terms "include" and "have," as well as any variations thereof, are intended to cover non-exclusive inclusions.

It is also to be understood that the terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used in the specification of the present invention and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.

It should be further understood that the term "and/or" as used in this specification and the appended claims refers to and includes any and all possible combinations of one or more of the associated listed items.

As used in this specification and the appended claims, the term "if" may be interpreted contextually as "when", "upon" or "in response to a determination" or "in response to a detection". Similarly, the phrase "if it is determined" or "if a [ described condition or event ] is detected" may be interpreted contextually to mean "upon determining" or "in response to determining" or "upon detecting [ described condition or event ]" or "in response to detecting [ described condition or event ]".

In particular implementations, the terminal devices described in embodiments of the invention include, but are not limited to, other portable devices such as mobile phones, laptop computers, or tablet computers having touch sensitive surfaces (e.g., touch screen displays and/or touch pads). It should also be understood that in some embodiments, the device is not a portable communication device, but is a desktop computer having a touch-sensitive surface (e.g., a touch screen display and/or touchpad).

In the discussion that follows, a terminal device that includes a display and a touch-sensitive surface is described. However, it should be understood that the terminal device may include one or more other physical user interface devices such as a physical keyboard, mouse, and/or joystick.

The terminal device supports various applications, such as one or more of the following: a drawing application, a presentation application, a word processing application, a website creation application, a disc burning application, a spreadsheet application, a gaming application, a telephone application, a video conferencing application, an email application, an instant messaging application, an exercise support application, a photo management application, a digital camera application, a web browsing application, a digital music player application, and/or a digital video player application.

Various applications that may be executed on the terminal device may use at least one common physical user interface device, such as a touch-sensitive surface. One or more functions of the touch-sensitive surface and corresponding information displayed on the terminal device may be adjusted and/or changed between applications and/or within respective applications. In this way, a common physical architecture (e.g., touch-sensitive surface) of the terminal device may support various applications with user interfaces that are intuitive and transparent to the user.

The display module set provided by the embodiment of the invention mainly comprises two layers of glass, namely a first glass 2 and a second glass 3, and the structural schematic diagram of the display module set shown in fig. 1 and 2 is combined, in the front schematic diagram of the display module set shown in fig. 1, the first glass 2 and the second glass 3 are sequentially arranged from top to bottom, the first glass 2 and the second glass 3 can be bonded through optical cement, a display area 20 is marked in the display module set, and the total area of characters and graphs can be displayed corresponding to the effective display area of the LCD in practical application. Fig. 2 is a right-side view of the display module shown in fig. 1, where it should be noted that the right-side view only shows a lower half of the display module shown in fig. 1, and is not a complete right-side view. It can be further confirmed from fig. 2 that the length of the second glass 3 is greater than that of the first glass 2, and the extra area can be referred to as a single layer area (shaded area in fig. 1), which is also a glass single layer area of the ITO terminal and display module of the LCD mentioned in the embodiment of the present invention. The LCD is constructed by placing liquid crystal cells between two parallel glass substrates, arranging Thin Film Transistors (TFT) on the lower substrate glass, arranging color filters on the upper substrate glass, and controlling the rotation direction of liquid crystal molecules by changing signals and voltages on the TFT, thereby achieving the purpose of controlling whether polarized light of each pixel point is emitted or not to achieve display. As can be seen from FIG. 1, because the two ends of the single-layer region of the second glass 3 are provided with the bevel angles C, also called chamfer angles, the ITO is fragile and easy to break. In view of the above problems, the scheme provided by the embodiment of the present invention is as follows:

referring to fig. 3, a right-view schematic diagram of a display module structure according to an embodiment of the present invention is shown, and the display module structure includes: glass apron 1 and with the display module assembly 0 that glass apron 1 bonded, display module assembly 0 includes: the glass cover plate comprises a first glass 2 which is bonded with the glass cover plate 1 and is arranged in parallel with the glass cover plate 1, and a second glass 3 which is bonded with the first glass 2 and is arranged in parallel with the first glass 2, wherein the length of the long edge of the second glass 3 is larger than that of the long edge of the first glass 2, and a cavity 11 formed between the second glass 3 and the glass cover plate 1 comprises a first bonding material.

Specifically, the first glass 2 and the top glass cover plate 1 may be bonded by an optical adhesive 31, where the optical adhesive may be an OCA (optical Clear adhesive) optical adhesive, and the OCA is a special adhesive for bonding transparent optical elements (such as lenses), and is required to have characteristics of being colorless and transparent, having a light transmittance of 90% or more, having a good bonding strength, being curable at room temperature or at intermediate temperature, and having a small curing shrinkage. The OCA optical cement is one of important raw materials of the touch screen.

Specifically, the first adhesive material mentioned in the embodiments of the present invention needs to be cured in a manner that changes the physical properties thereof upon contact with moisture in the air, so as to facilitate the operation of filling the adhesive material during the production process, and the first adhesive material may be a silicone adhesive, which is a paste-like material that is cured into a tough rubber-like solid material upon contact with moisture in the air. Mainly comprises a deacetylated type, a dealcoholized type, a deaminated type and a depropanated type. Silicone adhesive is commonly referred to as glass adhesive because it is commonly used for bonding and sealing glass; the second bonding material can be peelable blue glue, is also called blue glue, is special for insulation protection of the touch screen, is mainly applied to transparent conductive glass in the touch screen and ITO (indium tin oxide) coating of a film, and plays roles in insulation, moisture prevention and protection.

Further, referring to the schematic front view of the display module shown in fig. 4, fig. 4 is a lower half of the display module, and the display area 20, the glass cover plate 0, the first glass 2 and the second glass 3 are sequentially arranged from top to bottom, the glass single layer area of the display module 0 may be coated with a second bonding material, and the glass single layer area is an area not covered by the first glass 2 on the surface where the second glass 3 is bonded to the first glass 2. The first adhesive material may be located on the area coated with the second adhesive material.

As can be further understood in connection with fig. 1, there is a glass monolayer region on the second glass 3, and since the length of the second glass 3 is greater than the length of the first glass 2, a portion of the second glass 3 is not covered by the first glass 2, and there is only one layer of glass, which is a glass monolayer region. The second glass 3 includes a chamfer C1 and a chamfer C2 (chamfer C in fig. 1) at both ends of the single-layered region of the glass.

Further, the control circuit module 4 may be bonded to a single glass layer region of the second glass 3, the second bonding material may be located on the first region 11 of the single glass layer region excluding the control circuit module 4 region, the first bonding material may be located on the region 21 coated with the first bonding material, and all the bonding material may not cover the control circuit module 4.

Can be further understood by referring to the right-view schematic diagram of the display module structure shown in fig. 5. Fig. 5 is a right-view schematic diagram of a display module structure according to an embodiment of the invention, the right-view schematic diagram only shows a part of the display module, but not a complete right-view, and fig. 5 includes the display module structure shown in fig. 4. The display module comprises a glass cover plate 1, first glass 2, second glass 3 and a control circuit module 4, wherein the control circuit module can be adhered to the second glass 3, the glass cover plate 1 and the first glass 2 are adhered through an optical adhesive 31, the area coated with the second adhesive material is 21, and the area 21 coated with the second adhesive material does not cover the control circuit module 4, and the control circuit module 4 can be seen through a graph 4.

In general, referring to fig. 4, the first adhesive material may be located in a cavity formed by the glass cover plate 1 and the second glass 3, but not covering the control circuit module 4, that is, the second adhesive material may be coated on a region where the second adhesive material is coated on a single glass layer region avoiding the control circuit module 4, for example, the region where the first adhesive material is located may entirely cover the region of the second adhesive material, or may be a partial region of the region where the second adhesive material is coated, that is, the first adhesive material may be located at any place on the single glass layer region of the second glass except for the control circuit module. However, in order to better realize the protection of the single layer region, i.e. the ITO end of the LCD is not easily broken, it is necessary to select a suitable position to be coated with the second adhesive material, for example, the region 21 in fig. 4 and 5.

The control circuit module 4 may be understood as an Integrated Circuit (IC), which is a micro electronic device or component, and is fabricated by interconnecting transistors, resistors, capacitors, inductors, and other elements and wires required in a circuit together on one or more small semiconductor chips or dielectric substrates by a certain process, and then packaged in a package to form a micro structure with the required circuit function; all the elements are structurally integrated, so that the electronic elements are greatly miniaturized, low in power consumption, intelligent and high in reliability.

Alternatively, the second glass 3 may include a chamfer at a corner of the glass single layer region of the second glass, and the first adhesive material may be located at the chamfer region of the glass single layer region. The chamfering is to remove burrs generated by machining on the parts, and is also to facilitate the assembly of the parts, the end portions of the parts are generally chamfered. Optionally, the chamfer of the second glass is a 45-degree right-angle chamfer or an arc chamfer. For example, as shown in fig. 6, the second glass may have a 45-degree right-angle chamfer C and a circular arc chamfer R, and the second glass may have other shapes, such as right-angle chamfers with other angles.

For example, since the second glass 3 is provided with the chamfer C1 and the chamfer C2 as shown in fig. 7, the first adhesive material may be applied to the chamfer area 22 of the second glass in order to protect the two chamfer areas, and the chamfer area 22 is away from the control circuit module 4. The side view of the display module structure can still refer to fig. 5. Therefore, the second glass 3 can be protected more pertinently by using less bonding materials, the probability of breakage of the LCD with the chamfer angle can be reduced in practical application, and the strength of the whole display module structure is increased.

Optionally, as shown in fig. 8, the display module structure includes a glass cover plate 1 and a display module 0, the display module 0 includes a first glass 2 and a second glass 3, a control circuit module 4 is bonded on the second glass 3, the glass cover plate 1 and the first glass 2 are bonded through an optical adhesive 31, on the basis of the foregoing embodiment, an insulating adhesive paper 10 may be attached to a surface of the glass cover plate 1 adjacent to the display module 0, and the insulating adhesive paper 10 isolates the glass cover plate 1 from an area coated with the first bonding material. Wherein the area coated with the first adhesive material is 21, and the area coated with the second adhesive material is 11, it should be noted that the area coated with the first adhesive material 21 and the area coated with the second adhesive material 11 do not cover the control circuit module 4.

Above-mentioned insulated adhesive paper on glass apron 1 when glass apron 1 bonds through optical cement 31 with the display module assembly, can make glass apron not contact with first bonding material, because if first bonding material bonds the back with above-mentioned apron, when needs keep in repair, the split of being not convenient for makes the repair yield low, through increasing one deck insulated adhesive paper, avoids first bonding material and glass apron contact, is convenient for carry out the split maintenance.

The display module structure may further include polarizers (polarizers, polars), as shown in fig. 8, wherein the first Polarizer 61 and the second Polarizer 62 are respectively disposed on the upper surface and the lower surface of the display module 0. The polaroid is called as a polarizer, the imaging of the liquid crystal display depends on polarized light, and all liquid crystals have front and rear polarizers which are tightly attached to liquid crystal glass to form the liquid crystal plate with the total thickness of about 1 mm. If any one of the polarizers is omitted, the liquid crystal sheet cannot display an image.

The first glass 2 mentioned in the embodiment of the present invention may include a Color Filter (CF), which is an optical filter for expressing colors, and it can precisely select a small range of wavelength bands to be passed through, and reflect other bands which are not desired to be passed through. The color filter is usually installed in front of the light source, so that the human eye can receive a saturated color light, and there are infrared filters, and all colored filters such as green and blue filters.

The second glass 3 mentioned in the embodiment of the present invention may include a Thin Film Transistor (TFT), where the TFT means that each liquid crystal pixel on the liquid crystal display is driven by a TFT integrated behind the TFT. Therefore, the screen information can be displayed at high speed, high brightness and high contrast, and a TFT-LCD (thin film transistor liquid crystal display) is one of the liquid crystal displays.

Through filling viscose material, can further fix the position of above-mentioned second glass for above-mentioned glass apron to protected above-mentioned second glass simultaneously, increased above-mentioned second glass's intensity, made whole display module assembly be difficult for broken.

The insulating adhesive tape mentioned in the embodiments of the present invention may also be understood as an insulating tape (insulated tape), which refers to an adhesive tape used in electrical industry for preventing electric leakage and having an insulating function, and is called an insulating tape, and the adhesive tape is composed of a base tape and a pressure-sensitive adhesive layer. The base belt is generally made of cotton cloth, synthetic fiber fabric, plastic film and the like, and the adhesive layer is made of compounding agents such as rubber and tackifying resin and the like, so that the base belt is good in viscosity and excellent in insulating property. The insulating tape has the characteristics of good insulation, pressure resistance, flame retardance, weather resistance and the like, and is suitable for wire connection, electrical insulation, heat insulation protection and the like. The above-mentioned insulated adhesive paper can be yellow insulated adhesive paper, and is optional, and the thickness of above-mentioned insulated adhesive paper can be 0.03-0.07 millimeter (for example 0.05 millimeter), and the too thick insulated adhesive paper can influence the thickness and pleasing to the eye of whole display module assembly, selects the insulated adhesive paper of suitable thickness, avoids influencing the thickness of whole display module assembly, guarantees to completely cut off above-mentioned first bonding material simultaneously.

Optionally, as shown in fig. 8, the display module structure further includes a plastic frame 5, the display module 0 may be embedded in the plastic frame 5, at least one edge of the plastic frame 5 is provided with a retaining wall 51 for protecting the display module 0, and the retaining wall 51 is higher than the top surface of the display module 0 coated with the first adhesive material and the second adhesive material.

Specifically, it can be understood that the display module structure includes devices sequentially including, from top to bottom, a glass cover plate 1, a first polarizer 61, a first glass 2, a second glass 3, a second polarizer 62, and a plastic frame 5, where the retaining wall 51 of the plastic frame may be bent upward to wrap at least one side of the first glass 2 and the second glass 3, and the retaining wall 51 may contact with the glass cover plate 1 to play a supporting role, so as to reduce the breakage of the first glass 2 or the second glass 3 caused by an excessive pressure on the glass cover plate 1.

The rubber frame 5 may further include components such as a backlight source that constitute an LCD display driving interface (LCM), where the LCM is an LCD display module or a liquid crystal module, and refers to a component that assembles a peripheral circuit such as a liquid crystal display device, a connector, a control and drive device, a PCB, a backlight source, and a structural member.

The embodiment of the invention also provides terminal equipment which comprises any one of the display module structures.

The terminal device may be a mobile terminal, for example, a mobile phone, where the glass cover plate in the mobile phone may be understood as a cover plate for performing a touch operation on the mobile phone, the first glass may be a CF substrate, the second glass may be a TFT substrate, and the first glass and the second glass constitute a thin film transistor-liquid crystal display (TFT-LCD), which is a technology that combines a micro-electronics technology and a liquid crystal display technology skillfully, and the micro-electronics fine processing technology is transplanted to a large-area glass for processing a TFT array, and then the array substrate is combined with another substrate with a color filter to form a liquid crystal display by using a mature LCD technology, and then a post-process such as a polarizer attachment process is performed to finally form a liquid crystal display. The display module structure in the embodiment is applied to the terminal equipment, and can achieve the same technical effect, namely the breaking rate of the LCD or the display module of the terminal equipment can be reduced.

Claims

1. The utility model provides a display module assembly structure which characterized in that includes: a glass cover plate and a display module adhered with the glass cover plate,

the display module assembly includes: the display module comprises a first glass adhered with the glass cover plate and arranged in parallel with the glass cover plate, and a second glass adhered with the first glass and arranged in parallel with the first glass, wherein the length of the long edge of the second glass is greater than that of the long edge of the first glass, a first adhesive material is contained in a cavity formed between the second glass and the glass cover plate, a single glass layer area of the display module is coated with the second adhesive material, the single glass layer area is an area which is not covered by the first glass on the surface, adhered with the first glass, of the second glass, a control circuit module is adhered on the single glass layer area of the second glass, the second adhesive material is positioned on a first area, except the control circuit module area, of the single glass layer area, the second glass comprises a chamfer, and the chamfer is positioned on the corner of the single glass layer area of the second glass, the chamfer comprises an arc chamfer, the first bonding material is positioned in a chamfer area of the single glass layer area, the chamfer area avoids the control circuit module, the first bonding material is positioned on an area coated with the second bonding material, the first bonding material is different from the second bonding material, the curing mode of the first bonding material is changed by contacting moisture in air, and the second bonding material has the functions of insulation, moisture prevention and protection;

the glass cover plate is bonded with the first glass through optical cement, insulating gummed paper is pasted on one surface, adjacent to the display module, of the glass cover plate, and the glass cover plate is isolated from an area coated with the first bonding material through the insulating gummed paper.

2. The display module assembly structure of claim 1, wherein the first adhesive material comprises silicone adhesive and the second adhesive material comprises peelable blue adhesive.

3. The display module assembly structure of claim 1, wherein the thickness of the insulating adhesive paper is 0.03-0.07 mm.

4. The display module assembly structure according to claim 2, further comprising a plastic frame, wherein the display module assembly is embedded in the plastic frame, at least one edge of the plastic frame is provided with a retaining wall for protecting the display module assembly, and the retaining wall is higher than the top surface of the display module assembly coated with the first bonding material and the second bonding material.

5. A terminal device, comprising the display module structure of any one of claims 1 to 4.