TW201345999A - Protective film - Google Patents

Abstract

A protective film comprises a two-sided tape and a release film. The two-sided tape has a first side and an opposite second side. The first side is adhered to an object. The two-sided tape has a first edge. The release film has an adjacent second edge and a third edge. The release film is adhered to the second side of the two-sided tape. The release film has a cutting hole, and the cutting hole is extended by a length from the second edge towards the interior of the release film and towards the third edge. Thus, a pull grip is formed at the second edge; the pull grip has a separation end and an opposite connection end, and the connection end is close to the third edge.

Description

Protective film

The invention relates to a protective film, in particular to a protective film which can reduce the attachment area of the release film and the double-sided tape and change the release position to make the release film easier to tear off.

Referring to the first and second figures, a backlight module 10 is provided. The backlight module 10 has a frame 11 , and a light guide plate 12 and a plurality of light-emitting elements 13 are disposed in the frame 11 , and the light guide plate 12 is disposed. And at least one optical film 14 is disposed on the plurality of light-emitting elements 13, and one of the frames 11 is provided with a flange 111 having a discontinuous area 112, and the discontinuous area 112 is located at one of the frames 11. The central portion of the side edge 113 is disposed on the periphery of the at least one optical film 14 . The at least one optical film 14 is provided with a rectangular frame-shaped protective film 15 . The protective film 15 includes a protective film 15 . The release film 151 is provided with a double-sided tape 152 on the surface of the release film 151 facing the frame 11. Further, the release film 151 is provided with a lug 153 which protrudes from one side of the release film 151. The rim 1511 and the lug 153 are protruded from the frame 11 by the discontinuous region 112. One side of the double-sided tape 15 (the bottom surface of the first illustrated double-sided tape 15) is adhered to the at least one optical film 14, and when the assembler wants to assemble a liquid crystal panel 16, the assembler can grasp the lug 153 and The release film 151 is uncovered, and the release film 151 is separated from the double-sided tape 152, and the liquid crystal panel 16 is adhered to the top surface of the double-sided tape 152 to form a liquid crystal display device. The discontinuous region 112 can be provided. Connect the LCD panel A circuit board (not shown) of 16 extends out of the frame 11.

Referring to the second figure, the most prone problem in the assembly process of the liquid crystal display device is that there is a large area of the attachment area between the release film 151 and the double-sided tape 152, as shown by the oblique line in the second figure. In the long rectangular area, when the assembler grasps the lug 153 to peel off the release film 151, the lug 153 must be forcefully opened to overcome the adhesion between the release film 151 and the double-sided tape 152 due to the pulling force. Large, when the release film 151 is opened, the optical film 14 or the light-emitting element 13 attached to the bottom of the double-sided tape 152 can be easily brought up, causing the optical film 14 or the light-emitting element 13 to be displaced. Causes poor visual effects.

In order to improve the above problems, some manufacturers have improved the method of changing the release film material (reducing the number of grams of the release), but this will lead to an increase in cost and will not completely solve the problem.

In view of the lack of the prior art, the present invention provides a protective film which can reduce the attachment area of the release film and the double-sided tape and change the release position, thereby making the release film easier to tear off.

In order to achieve the above object, the present invention provides a protective film comprising: a double-sided tape having a first surface opposite to a first surface and a second surface attached to an object, the double side The adhesive tape has a first edge; and a release film having an adjacent one of the second edge and a third edge, the release film attached to the second side of the double-sided tape, to The release film is provided with a cutting hole, the cutting hole is extended from the second edge toward the inside of the release film and toward the third edge, thereby forming a handle on the second edge, The pull handle has a relatively separated end and a connecting end that is adjacent to the third edge.

In order to enable your review committee to have a better understanding and recognition of the structural purpose and efficacy of the present invention, the detailed description is as follows.

The technical means and efficacy of the present invention for achieving the object will be described below with reference to the accompanying drawings, and the embodiments listed in the following drawings are only for the purpose of explanation, and are to be understood by the reviewing committee, but the technical means of the present invention are not Limited to the listed figures.

Referring to the third and fourth figures, the protective film 20 provided by the present invention comprises a rectangular double-sided tape 21 and a rectangular release film 22.

The double-sided tape 21 has a rectangular hollow portion 211 which causes the double-sided tape 21 to have a rectangular frame shape, and the rectangular frame-shaped double-sided tape 21 has four edges, one of which is a first edge 212. The double-sided tape 21 has a first surface 213 and a second surface 214. The first surface 213 and the second surface 214 are adhesive, and the first surface 213 of the double-sided tape 21 (also shown as a double-sided tape) The bottom surface of the second surface is attached to an object. In the embodiment, the object is a backlight module 30.

The backlight module 30 includes a frame body 31, a plurality of light-emitting elements 32, a light guide plate 33, a reflective film 34, and a plurality of optical films 35. The frame 31 has a third surface 311 and a fourth surface 312, and the frame 31 has a capacity. The space 313 is provided with a plurality of grooves 314 on one side of the frame 31, and the groove 314 is connected to the accommodating space 313. A flange 315 is disposed around the fourth surface 312 of the frame 31. The flange 315 is disposed on the periphery of the plurality of optical films 35. The flange 315 is provided with a discontinuous region 316, and the discontinuous region 316 is located in the frame. One side 317 of the body 31. The plurality of light-emitting elements 32 are arranged in a circuit board 321 , and each of the light-emitting elements 32 is embedded in the corresponding recess 314 . The light guide plate 33 is disposed in the accommodating space 313 of the frame body 31. One side 331 of the light guide plate 33 faces the recess 314. The light guide plate 33 has a fifth surface 332 and a sixth surface 333 opposite to each other. The reflective film 34 is disposed on the third surface 311 of the frame 31 and is located on the fifth surface 332 of the light guide plate 33. The plurality of optical films 35 are disposed on the sixth surface 333 of the light guide plate 33, and the plurality of optical films 35 face the light guide plate 33 against the fourth surface 312 of the frame 31, and the first side of the double-sided tape 21 213 is attached to the optical film 35 with respect to one surface on which the light guide plate 33 is provided (that is, the top surface of the illustrated optical film 35).

The release film 22 has a rectangular hollow portion 221, and the release film 22 has a rectangular frame shape, and the rectangular frame-shaped release film 22 has four edges, wherein two adjacent edges are a second edge. 222 and a third edge 223. The release film 22 is attached to the second surface 214 of the double-sided tape 21 (that is, the top surface of the double-sided tape 21 is shown), and the second edge 222 is aligned with the first edge 212 of the double-sided tape 21, The two edges 222 are the same length as the first edge 212. The release film 22 is provided with a cutting hole 224 extending from the second edge 222 toward the inside of the release film 22 and extending toward the third edge 223. The cutting hole 224 extends toward the third edge 223. Length side The orientation is parallel to the second edge 222 whereby a handle 225 is formed at the second edge 222. The handle 225 has a relatively separated end 2251 and a connecting end 2252, and the connecting end 2252 is adjacent to the third edge 223. A lug 226 is disposed on the split end 2251 of the handle 225, and the lug 226 protrudes beyond the second edge 222. When the protective film 20 is attached to the optical film 35 of the backlight module 30, the lug 226 protrudes from the discontinuous region 316 outside the frame 31 (as shown in the fourth figure), that is, the frame 31 The discontinuous region 316 corresponds to the position of the cutting aperture 224 of the release film 22 at the second edge 222. When the assembler wants to assemble a liquid crystal panel 40, the release film 22 must be uncovered, and then the liquid crystal panel 40 is adhered to the double-sided tape 21, so that the liquid crystal panel 40 and the backlight module 30 are combined into a liquid crystal display device, and the discontinuous region The 316 may provide a circuit board (not shown) connected to the liquid crystal panel 40 to extend out of the frame 31.

Please refer to the fifth and sixth figures to illustrate the manner in which the release film of the present invention is disclosed. First, as shown in the fifth figure, the assembler grasps the lug 226, and then pulls the handle 225 along the extending direction of the length of the cutting hole 224 (that is, parallel to the direction of the second edge 222 of the release film 22). It is up to the connection end 2252 of the third edge 223. Since the attachment area of the handle 225 and the double-sided tape 21 (shown in the third figure) (such as the hatched area of the fifth figure) is much smaller than the attachment area of the other part of the release film 22 and the double-sided tape 21, and is uncovered The direction of the handle 225 is parallel to the direction parallel to the second edge 222, so that when the handle 225 is uncovered, a very large pulling force is not required, and the pulling force acts only on the handle 225, so that it does not apply to the double-sided tape. The optical film 35 attached to the bottom of the 21 (shown in the third figure) or the light-emitting element 32 causes influence. As shown in the sixth figure, when the handle 225 is fully pulled up, the connecting end 2252 of the handle 225 can connect the second edge 222 of the release film 22 to the third edge 223. The release film 22 can be separated from the double-sided tape 21 by taking it apart.

The structure of the present invention shown in FIG. 5 is compared with the conventional structure shown in FIG. 2, and it is assumed that the side edge 1511 of the conventional release film 15 provided with the lug 153 in the second figure has a length R1, and a fifth The handle 225 of the release film 22 of the present invention has a length R2, according to the torque formula: T = R x F

Among them, T = torque, R = external force, F = force arm.

Assuming that the force distance is 100 (torque unit), the length R1 is 10 (length unit), and the length R2 is 5 (length unit), the force arm of the conventional release film 15 can be obtained as 10 (force arm unit), the present invention The arm of the handle 225 is 20 (force arm unit), which means that the pulling force required to uncover the handle 225 of the present invention is smaller than the pulling force of the conventional release film 15.

Please refer to the seventh to ninth figures for other different aspects of the release film of the present invention. The release film 22A shown in the seventh embodiment has an elongated slit hole 224A, thereby forming a handle 225A. The present embodiment is characterized in that the cut hole 224A is adjacent to the third edge 223A of the release film 22A. An arc-shaped cutting hole 2241A is extended at one end. The release film 22B shown in the eighth embodiment has a long cut hole 224B extending directly from the second edge 222B of the release film 22B toward the third edge 223B, thereby forming a handle 225B at the cut hole 224B. An arcuate cut hole 2241B is disposed adjacent one end of the third edge 223B of the release film 22B. The release film 22C shown in FIG. 9 has an elongated cut hole 224C extending directly from the second edge 222C of the release film 22C toward the third edge 223C, thereby forming a handle 225C at the cut hole 224C. An arc-shaped cutting hole 2241C is disposed adjacent to one end of the third edge of the release film 22C. In the eighth embodiment, the cutting hole 224C of the embodiment has a width such that the handle 225C and the second edge 222C have a distance therebetween.

In summary, the protective film provided by the present invention can change the release position of the release film by the handle design of the release film, reduce the force of uncovering the release film, and tear off the release film. It is easier, and the problem that the double-sided tape brings up or causes the attached components to form a defective product can be avoided.

However, the above description is only for the embodiments of the present invention, and the scope of the invention is not limited thereto. That is to say, the equivalent changes and modifications made by the applicant in accordance with the scope of the patent application of the present invention should still fall within the scope of the patent of the present invention. I would like to ask your review committee to give a clear explanation and pray for it.

Prior art:

10‧‧‧Backlight module

11‧‧‧ frame

111‧‧‧Flange

112‧‧‧discontinuous area

113‧‧‧ side

12‧‧‧Light guide plate

13‧‧‧Lighting elements

14‧‧‧Optical diaphragm

15‧‧‧Protective film

151‧‧‧ release film

1511‧‧‧lateral edge

152‧‧‧Double-sided tape

153‧‧‧ lugs

this invention:

20‧‧‧Protective film

21‧‧‧Double-sided tape

211‧‧‧Rectangle Ventilation

212‧‧‧ first edge

213‧‧‧ first side

214‧‧‧ second side

22, 22A, 22B, 22C‧‧‧ release film

221‧‧‧Rectangle Ventilation

222, 222B, 222C‧‧‧ second edge

223, 223A, 223B, 223C‧‧‧ third edge

224, 224A, 224B, 224C‧‧‧ cut holes

2241A, 2241B, 2241C‧‧‧ arc cut holes

225, 225A, 225B, 225C‧‧ ‧ handle

2251‧‧‧Separate end

2252‧‧‧Connected end

226‧‧‧ lugs

30‧‧‧Backlight module

31‧‧‧ frame

311‧‧‧ third side

312‧‧‧ fourth side

313‧‧‧ accommodating space

314‧‧‧ Groove

315‧‧‧Flange

316‧‧‧discontinuous area

317‧‧‧One side of the frame

32‧‧‧Lighting elements

321‧‧‧ boards

33‧‧‧Light guide plate

331‧‧‧one side of the light guide

332‧‧‧The fifth side

333‧‧‧ sixth side

34‧‧‧Reflective diaphragm

35‧‧‧Optical diaphragm

40‧‧‧LCD panel

R1, R2‧‧‧ length

The first figure is a schematic diagram of an exploded structure of a conventional protective film with a backlight module and a liquid crystal panel.

The second figure reveals a schematic diagram of a conventional release film.

The third figure is a schematic exploded view of the backlight module of the present invention.

The fourth figure is a schematic structural view of the present invention disposed on a backlight module and matched with a liquid crystal panel.

The fifth and sixth figures are schematic views of the release film of the present invention.

7 to 9 are schematic views showing the structure of other different embodiments of the present invention.

22‧‧‧ Release film

222‧‧‧ second edge

223‧‧‧ third edge

224‧‧‧cut holes

225‧‧‧ handle

2252‧‧‧Connected end

226‧‧‧ lugs

32‧‧‧Lighting elements

R2‧‧‧ length

Claims (10)

A protective film comprising: a double-sided tape having a first surface opposite to a first surface, the first surface attached to an object, the double-sided tape having a first edge; a release film having an adjacent second edge and a third edge, the release film being attached to the second side of the double-sided tape, wherein the release film is provided with a cutting a hole extending from the second edge toward the interior of the release film and toward the third edge, thereby forming a handle on the second edge, the handle having a relatively separated end And a connecting end that is adjacent to the third edge. The protective film of claim 1, wherein the separated end of the handle is provided with a lug protruding from the second edge. The protective film of claim 1, wherein the length of the cutting hole extending toward the third edge is parallel to the second edge. The protective film of claim 1, wherein the first edge is the same length as the second edge, and the release film is attached to the first edge with the second edge attached to the first edge The second side of the tape. The protective film of claim 1, wherein the double-sided tape has a rectangular shape, and the first edge is one of edges of the rectangular double-sided tape. The protective film of claim 5, wherein the double-sided tape has a rectangular hollow portion, so that the double-sided tape exhibits a rectangular frame shape. The protective film according to claim 5, wherein the release film is a rectangle, the second edge being one of the edges of the release film of the rectangle. The protective film according to claim 7, wherein the release film has a rectangular hollow portion, so that the release film exhibits a rectangular frame shape. The protective film of claim 1, wherein the double-sided tape is attached to a backlight module, and the backlight module comprises: a frame having a third surface and a fourth surface. The frame has an accommodating space, and the accommodating space is formed through the third surface and the fourth surface. A plurality of grooves are formed on one side of the frame, and the groove is connected to the accommodating space; The light guide plate is disposed in the accommodating space of the frame, and one side of the light guide plate faces the plurality of grooves, and the light guide plate has one of the opposite sides. a fifth surface and a sixth surface; a reflective film disposed on the third surface of the frame and located on the fifth surface of the light guide plate; and at least one optical film disposed on the light guide plate The sixth surface of the double-sided tape is attached to the fourth surface of the frame, and the first surface of the double-sided tape is attached to the optical film. One side of the light guide plate is provided. The protective film of claim 9, wherein the fourth side of the frame is provided with a flange, the flange has a discontinuous area, and the flange is disposed on the at least one optical film. The periphery of the discontinuous region corresponds to the position of the cutting hole of the release film at the second edge.