TW201802851A - Method of assembling backlight module of illuminated keyboard - Google Patents

Abstract

A method of assembling a backlight module of an illuminated keyboard comprises the steps of: providing a main body; applying adhesive on the lower surface of the main body all over; molding the main body according to a preset specification of the key caps and the keyboard of the illuminated keyboard; and attaching a light guide plate and a reflector in sequence to the lower surface of the molded main body with the adhesive to have the light guide plate be in between the molded main body and the reflector to form the backlight module in such a manner to simplify production process and increase productivity for the backlight module of the illuminated keyboard.

Description

Assembling method of backlight module for light-emitting keyboard

The invention relates to a light-emitting keyboard, in particular to a method for assembling a backlight module for a light-emitting keyboard.

The keyboard is one of the important components used to enter text, symbols or numbers into the computer. With the development of technology, the design of the keyboard is becoming more and more diverse. In addition to the flexibility of the keyboard, its visual effects and other functions have also become one of the keys for users to purchase. For example, currently there are light-emitting keyboards on the market. In addition to visually appealing to users, its backlight effect can improve operability at night or in places with insufficient lighting.

A conventional method for manufacturing a light-emitting keyboard is to print a layer of white ink on the surface of a transparent plastic body according to a preset light-shielding position, and then print a layer of black ink on the white ink to form a light-shielding sheet. Then, the black ink is coated with an adhesive, and then the outer edge of the light shielding sheet is aligned and punched by a punching machine. Finally, the light guide plate, the reflection sheet, and the keyboard device are sequentially combined in the light shielding sheet. In the conventional manufacturing method of the light-emitting keyboard, the adhesive printed on the light-shielding sheet is often cut off due to inaccurate alignment during punching, resulting in a shortage of adhesion area, which makes the light-guide plate, light-shielding plate, and keyboard device pasted later The combination with the reflective sheet is reduced to cause separation, resulting in defective keyboard products. In addition, each body is individually subjected to the registration printing of the ink and the registration coating of the adhesive, which makes the overall process tedious and complicated, and it is difficult to produce quickly and in large quantities. Therefore, it is necessary to improve the conventional manufacturing method of the illuminated keyboard.

Therefore, the purpose of the present invention is to provide a method for assembling a backlight module for a light-emitting keyboard, which is used to improve the yield of a light-emitting keyboard product, simplify the production process, and improve production efficiency.

The technical method adopted by the present invention to solve the problems of the conventional technology is to provide a method for assembling a backlight module for a light-emitting keyboard, which includes the following steps in order: (a) providing a body; (b) one of the bodies An adhesive is applied to the entire surface of one or both of the surface and an upper surface; (c) the body is punched to form a punched shape according to the keyboard specifications and keycap specifications of a preset illuminated keyboard. The body; and (d) sequentially attaching a light guide plate and a reflective sheet to the lower surface of the punched body, so that the light guide plate is sandwiched between the punched body and the reflective sheet To form a backlight module, and attach the punched body to a keyboard member with the upper surface of the punched body, so that the backlight module is combined with the keyboard member, wherein, in the punch When the lower surface of the main body after molding is the entire surface with the adhesive applied, the light guide plate and the reflection sheet are attached to the main body after punching by the adhesive, and the main body after the punching is performed. When the upper surface is the whole surface with the adhesive applied, the The system is attached to the keyboard component through the adhesive.

In one embodiment of the present invention, a method for assembling a backlight module for a light-emitting keyboard is provided. In step (b), the adhesive is applied to the entire surface of the lower surface in a roll-to-roll manner.

According to an embodiment of the present invention, a method for assembling a backlight module for a light-emitting keyboard is provided. In the step (b), the adhesive is applied to the entire surface of the lower surface in the form of a sheet glue.

In one embodiment of the present invention, a method for assembling a backlight module for a light-emitting keyboard is provided. In the step (b), the adhesive is applied to the entire surface of the upper surface in a roll-to-roll manner.

According to an embodiment of the present invention, a method for assembling a backlight module for a light-emitting keyboard is provided. In the step (b), the adhesive is applied to the entire surface of the upper surface in the form of a sheet glue.

In one embodiment of the present invention, a method for assembling a backlight module for a light-emitting keyboard is provided. The adhesive in step (b) is a double-sided adhesive.

In one embodiment of the present invention, a method for assembling a backlight module for a light-emitting keyboard is provided. The adhesive in step (b) is a glue.

In one embodiment of the present invention, a method for assembling a backlight module for a light-emitting keyboard is provided. The reflectivity of the reflective sheet is greater than 70%.

In one embodiment of the present invention, a method for assembling a backlight module for a light-emitting keyboard is provided. The upper surface of the light guide plate has a plurality of dots.

According to the technical means adopted in the method for assembling the backlight module of the light-emitting keyboard of the present invention, by applying an adhesive on the entire lower surface of the body, the punching machine does not need to be aligned according to a preset light-shielding position. Punching the body simplifies the alignment steps and production time, and can greatly increase the output of the backlight module of the illuminated keyboard.

Hereinafter, embodiments of the present invention will be described with reference to FIGS. 1 to 8. This description is not intended to limit the embodiment of the present invention, but is an example of the embodiment of the present invention.

As shown in FIG. 1, an assembling method 100 of a backlight module for a light-emitting keyboard according to an embodiment of the present invention includes the following steps in order: providing a main body (step S10), and rectifying a lower surface of one of the main bodies. An adhesive is applied on the surface (step S20), and the body is punched to form a punched body (step S30) according to a keyboard specification and a keycap specification of a preset illuminated keyboard (step S30), and a light guide plate and a The reflection sheet is sequentially attached to the lower surface of the punched body by the adhesive, so that the light guide plate is sandwiched between the punched body and the reflection sheet to form a backlight module ( Step S40).

Please refer to FIG. 2 to FIG. 7 at the same time, and cooperate with FIG. 1, the description of this embodiment is as follows.

In step S20, in this embodiment, the body 1 is a black light-shielding sheet. Of course, this creation is not limited to this, the body 1 may also be a white light-shielding sheet or a transparent sheet, and then black ink is coated on the part to be shielded to form a light-shielding sheet. .

Next, as shown in FIG. 3, in step S20, the adhesive 2 is applied to the lower surface 11 of the body 1 in a roll-to-roll (RTR) application method (step S20). Specifically, the application method may be roll-to-roll-to-roll or roll-to-roll coating. Of course, the present invention is not limited to this. In other embodiments, the adhesive 2 can also be applied to the entire lower surface 11 of the body 1 by a manual application method. In this embodiment, the adhesive 2 is a double-sided tape. Of course, the present invention is not limited to this, and the adhesive 2 may also be a glue or other liquid adhesive with good adhesion.

Preferably, after step S20, a step S25 is further included. The adhesive 2 is applied to the upper surface 12 of the body 1 in a roll-to-roll (RTR) manner (step S25) (as in step 4). (Shown in the figure) for attaching a keyboard member 5 to the upper surface 12 of the body 1 (as shown in FIG. 7).

As shown in FIG. 5, in step S30, in this embodiment, the body 1 is punched out to form a punched body according to the keyboard specifications and keycap specifications of a light-emitting keyboard (such as the 8th embodiment). As shown).

Finally, as shown in FIG. 6 and FIG. 7, in step S40, the light guide plate 3 whose length and width are both smaller than the lower surface 11 is attached to the lower surface 11 through the adhesive 2, and then The reflection sheet 4 is attached to the lower surface 11 through the adhesive 2, and the light guide plate 3 is sandwiched between the punched body 1 and the reflection sheet 4 to form a backlight module (No. 7 As shown).

Preferably, in step S40, the reflection sheet 4 with a reflectance of 70% is attached to the lower surface 11 of the body 1 after the punching. Of course, the present invention is not limited to this, and the reflectivity of the reflective sheet 4 may also exceed 70%, for example: 80%, 85%, 95%, and the like.

Preferably, in step S40, the upper surface of the light guide plate 3 has a plurality of dots, so that light is emitted. Of course, this creation is not limited to this, and each of the halftone dots can also be disposed on the lower surface (not shown) of the light guide plate 3, or on the upper and lower surfaces of the light guide plate 3 at the same time.

In this embodiment, the dimensions of the body 1 and the reflection sheet 4 are substantially equal, and the length and width of the body 1 and the reflection sheet 4 are both slightly larger than the length and width of the light guide plate 3 (as in the sixth As shown).

The above descriptions and descriptions are merely illustrations of the preferred embodiments of the present invention. Those with ordinary knowledge of this technology may make other modifications based on the scope of the patent application defined below and the above description, but these modifications should still be made. It is the spirit of the present invention and is within the scope of the present invention.

100‧‧‧Assembling method of backlight module for light-emitting keyboard
1‧‧‧ Ontology
11‧‧‧ lower surface
12‧‧‧ top surface
2‧‧‧ Adhesive
3‧‧‧light guide
4‧‧‧Reflector
5‧‧‧Keyboard components

[Fig. 1] is a flowchart showing a method for assembling a backlight module for a light-emitting keyboard according to an embodiment of the present invention; [Fig. 2] is a diagram showing a method for assembling a light-emitting keyboard according to this embodiment of the present invention Schematic diagram of a body of a method for assembling a backlight module; [FIG. 3] shows the method of assembling a backlight module for a light-emitting keyboard according to this embodiment of the present invention, of the body having an adhesive applied to a lower surface thereof [Fig. 4] is a schematic diagram showing the assembly method of the backlight module for a light-emitting keyboard according to this embodiment of the present invention, the main body having an adhesive applied to the upper surface; [Fig. 5] is a display basis A cross-sectional view of the body of the backlight module for assembling a light-emitting keyboard according to the embodiment of the present invention after punching; [Fig. 6] shows a backlight for a light-emitting keyboard according to this embodiment of the present invention Schematic diagram of the body of a module assembly method with a light guide plate and a keyboard member attached; [Figure 7] shows the assembly of a backlight module for a light-emitting keyboard according to this embodiment of the present invention Schematic diagram of the illuminated keyboard of the method; [FIG. 8] is a schematic diagram showing the body of the backlight module assembly method for the illuminated keyboard according to the embodiment of the present invention after punching.

Claims (10)

A method for assembling a backlight module for a light-emitting keyboard includes the following steps in order: (a) providing a body; (b) applying a whole of one or both of a lower surface and an upper surface of the body Adhesive; (c) punching the body to form a punched body according to the keyboard specifications and keycap specifications of a preset illuminated keyboard; and (d) sequentially ordering a light guide plate and a reflective sheet It is attached to the lower surface of the punched body, and the light guide plate is sandwiched between the punched body and the reflection sheet to form a backlight module, and the punched body is The upper surface of the punched body is attached to a keyboard member, so that the backlight module is combined with the keyboard member, wherein the lower surface of the punched body is coated with the adhesive on the entire surface. When the light guide plate and the reflection sheet are attached to the punched body by the adhesive, and when the upper surface of the punched body is the entire surface with the adhesive applied, the punch After the molding, the system is attached to the keyboard member through the adhesive. The method for assembling a backlight module for a light-emitting keyboard according to claim 1, wherein in the step (b), the adhesive is applied to the entire surface of the lower surface in a roll-to-roll manner. The method for assembling a backlight module for a light-emitting keyboard according to claim 1, wherein in the step (b), the adhesive is applied to the entire surface of the lower surface by gluing the sheet. The method for assembling a backlight module for a light-emitting keyboard is the method for assembling a backlight module for a light-emitting keyboard as described in claim 1, wherein the step (b) is performed on the upper surface in a roll-to-roll manner. The adhesive is applied over the entire surface. The method for assembling a backlight module for a light-emitting keyboard according to claim 1, wherein in the step (b), the adhesive is applied to the entire surface of the upper surface in the form of a sheet glue. The method for assembling a backlight module for a light-emitting keyboard according to claim 1 or 2 or 3 or 4 or 5, wherein the adhesive in step (b) is a double-sided adhesive. The method for assembling a backlight module for a light-emitting keyboard according to claim 1 or 2 or 3 or 4 or 5, wherein the adhesive in step (b) is a glue. The method for assembling a backlight module for a light-emitting keyboard according to claim 1, wherein the reflectivity of the reflective sheet is greater than 70%. The method for assembling a backlight module for a light-emitting keyboard according to claim 1, wherein the upper surface of the light guide plate has a plurality of dots. The method for assembling a backlight module for a light-emitting keyboard according to claim 1, wherein the system is a light-shielding sheet.