JP2006154111A - Insulating sheet assembly for liquid crystal module, and method for attaching insulating sheet for liquid crystal module - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an insulating sheet assembly for a liquid crystal module, with a double coated adhesive tape attached thereto, in which unnecessary cutting due to interference with the edge of the insulating sheet produced in an operation to release an adhesive tape substrate is eliminated, and to provide the double coated adhesive tape which improves efficiency of an assembling operation and from which the substrate is easily removed with an assembling operator. <P>SOLUTION: The insulating sheet assembly for the liquid crystal module covers a printed circuit board 13 mounted with a controller to control a driver IC of the liquid crystal module and so on, wherein an adhesive tape of which the substrate is composed of one out of polyethylene terephthalate, polyimide, polyphenylene sulfide, polyetheretherketone, polyetherketone, and polyether is used as the double coated adhesive tape 1 for fixing the insulating sheet 4. The double coated adhesive tape 1 is constructed by applying an adhesive 3 onto the substrate 2 along its one edge, wherein the width of the substrate is made wider than that of the adhesive. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to an insulating sheet assembly for a liquid crystal module that covers a printed circuit board on which a controller for controlling a driver IC of the liquid crystal module in a liquid crystal display device and other electronic components are mounted. It facilitates assembly.

  As a display device such as a computer, a personal digital assistant, a mobile phone, and a television device, a power-saving, thin, and light-weight liquid crystal display device is often used.

  Such a liquid crystal display device is usually a liquid crystal panel, an optical sheet such as a diffusion plate or a prism film, a light guide plate, a reflective sheet, a resin frame surrounding them, a lamp set in close contact with the side end surface of the light guide plate, and a back side that houses them A printed circuit board connected to the liquid crystal panel via a TCP (Tape Carrier Package) is disposed and fixed on the back surface of the bottom plate. A liquid crystal module in which a circuit board is covered with an insulating sheet is used.

  That is, as shown in the exploded perspective view of FIG. 11, the liquid crystal module 10 includes a TCP (print circuit) on which a TCP 12 on which a driver IC for driving a liquid crystal panel is mounted and a controller for controlling the driver IC and other electronic components are mounted. Substrate) 13, the liquid crystal panel 11 to which the printed circuit board 13 is connected via the TCP 12, the first prism sheet 15 a and the second prism sheet 15 b disposed on the back surface of the liquid crystal panel 11, and the first prism sheet 15 a A first diffusion sheet 16a and a second diffusion sheet 16b disposed on the front surface and the front surface of the light guide plate, a rectangular flat plate-shaped acrylic resin light guide plate 17, and a white reflective sheet 18 disposed on the back surface of the light guide plate 17; The bottom plate 19 that supports the back surface of the reflection sheet 18 is combined, and these constituent members are combined with the resin frame 14. The lower support of the liquid crystal panel 11 on the upper side of the frame accommodated by fitting the other components, are assembled by fitting the front frame 22 to the front. The first and second lamp sets 20a and 20b of the backlight device in which the linear lamp 21 is attached to the lamp reflecting plate are provided on the two opposite side end surfaces of the light guide plate 17, and the light guide plate 17 and the resin frame 14 are provided. And the bottom plate 19 are attached to the gap. The lamp sets 20a and 20b are arranged along the side edges (side end surfaces) of the light guide plate 17 made of transparent acrylic resin or the like so that the emission surfaces of the linear lamps 21 are parallel to each other. The printed circuit board 13 is guided to the back surface of the liquid crystal module 10 by turning the side surface of the resin frame 14 and attached to the back surface of the bottom plate 19. The surface of the printed circuit board 13 is covered with an insulating sheet 23 for electrical insulation. Reference numeral 24 denotes a back cover.

  FIG. 12 is a perspective view of the liquid crystal module of the assembled liquid crystal display device as seen from the back side. As shown in the figure, the bottom plate 19 is provided with two hooks 25 for fixing the printed circuit board. The printed circuit board 13 is fixed in the assembly of the liquid crystal module. An insulating sheet 23 is affixed on the printed circuit board 13 fixed to the bottom plate 19 in order to protect the printed circuit board and to electrically insulate it from a metal cover that covers the back surface of the printed circuit board. The insulating sheet 23 is provided with notches 23a and 23b so as to be attached to avoid the hook 25 portion. And the double-sided adhesive tape 26 used for affixing the insulating sheet 23 is one in which a double-sided adhesive material is conventionally applied to a paper mount treated with a release material as shown in Patent Document 1, as shown in FIG. As shown in FIG. 1, one side of the adhesive material 28 is disposed on the edge of the insulating sheet 23 and the other side of the adhesive material 28 is covered with a mount 27.

  FIG. 13B is an enlarged view of a portion N in FIG. 13A, and the assembly operator can make a paper mount shown in FIG. 13B before attaching the insulating sheet 23 to the printed circuit board 13. 27 has to be peeled off, but at that time, the paper mount 27 has a narrow width, so that it interferes with the edge 23b of the notch portion of the insulating sheet 23 shown in the drawing and is cut off in the middle. There was a problem that it took a long time for assembly. At that time, the conventional double-sided pressure-sensitive adhesive tape 26 has the disadvantage that it is difficult to remove the mount 27 because the width of the mount 27 and the width of the adhesive 28 applied to the mount 27 are the same.

Further, in order to prevent the mount 27 from being cut, if the portion corresponding to the hook 25 is cut out after the double-sided adhesive tape 26 is applied as shown in FIG. 14, the double-sided adhesive tape 26 will not be cut off. 27 had to be peeled off, and it took a long time to peel off, impairing work efficiency, and took time to assemble.
JP-A-9-194806

  As described above, in the assembly of the printed circuit board to the liquid crystal module, the double-sided adhesive tape is peeled off from the base material so that the insulating sheet covering the printed circuit board can be fixed smoothly and efficiently. There is a need for a solution to prevent unnecessary cutting due to interference with the edge of the notch portion of the insulating sheet.

  As a result of various studies to solve the above problems, the inventor of the present application pays attention to the material of the double-sided pressure-sensitive adhesive tape and the adhesion range of the pressure-sensitive adhesive material to the tape substrate, and by improving the double-sided pressure-sensitive adhesive tape, The present inventors have found that the problem can be solved and have completed the present invention.

  That is, the present invention provides a double-sided pressure-sensitive adhesive tape that can eliminate unnecessary cutting of the double-sided pressure-sensitive adhesive tape due to interference with the edge of the notch portion of the insulating sheet during the substrate peeling operation, The object is to improve the efficiency of the liquid crystal module assembly work.

  It is another object of the present invention to provide a double-sided pressure-sensitive adhesive tape for fixing an insulating sheet, which is easier for an operator to peel off a substrate than a conventional one when assembling a liquid crystal module.

  In order to solve the above-mentioned problems, an invention according to claim 1 of the present application is an insulating sheet for covering a printed circuit board on which a controller for controlling a driver IC of a liquid crystal module and other electronic components are mounted. In the insulating sheet assembly for a liquid crystal module in which the double-sided pressure-sensitive adhesive tape for fixing the insulating sheet whose one surface is coated with a base material is attached to the surface of the sheet, the base material is polyethylene terephthalate, polyimide, polyphenylene sulfide, Any one of polyetheretherketone, polyetherketone and polyether is used.

  The “insulating sheet assembly for a liquid crystal module” used in the present specification refers to an insulating sheet, an adhesive material to be attached to the insulating sheet, and a base material that covers the adhesive material, each of which is integrated. Used in meaning.

  The invention according to claim 2 of the present application is the insulating sheet assembly for the liquid crystal module according to claim 1, wherein the double-sided pressure-sensitive adhesive tape provided on the insulating sheet is along one side of the base material. It is characterized in that an adhesive material is applied and the width of the base material is wider than the width of the adhesive material.

  The invention according to claim 3 of the present application is the insulating sheet assembly for a liquid crystal module according to claim 1 or 2, wherein the double-sided adhesive tape is attached to a predetermined position of the insulating sheet to fix the insulating sheet. It is characterized by becoming.

  The invention according to claim 4 of the present application is the insulating sheet assembly for a liquid crystal module according to claim 3, wherein the double-sided adhesive tape is provided on the rising portion formed on the insulating sheet and on the opposite side of the rising portion. It is characterized by being attached.

  The invention according to claim 5 of the present application is the liquid crystal module insulating sheet assembly according to claim 3, wherein the insulating sheet formed with the hook notch has the same shape at the same position as the hook notch. The double-sided pressure-sensitive adhesive tape provided with a notch is integrated and stuck together with the positions of the two aligned.

  The invention according to claim 6 of the present application is the insulating sheet assembly for a liquid crystal module according to claim 3, wherein one surface of the double-sided pressure-sensitive adhesive tape in which the notch is not provided in the insulating sheet in which the hook notch is formed. It is characterized by being attached.

  According to claim 7 of the present application, in the insulating sheet assembly for a liquid crystal module according to any one of claims 1 to 6, the base material of the double-sided pressure-sensitive adhesive tape and the insulating sheet are formed from a plastic sheet of the same material. It is characterized by that.

  The invention according to claim 8 of the present application is a method of attaching an insulating sheet that covers a printed circuit board on which a controller for controlling a driver IC of a liquid crystal module or other electronic components is mounted, and one surface is attached to the insulating sheet. As the double-sided pressure-sensitive adhesive tape for fixing the insulating sheet, a double-sided pressure-sensitive adhesive tape based on any one of polyethylene terephthalate, polyimide, polyphenylene sulfide, polyetheretherketone, polyetherketone and polyether is used. The insulating sheet is attached to the printed circuit board by fixing the other adhesive surface of the double-sided pressure-sensitive adhesive tape exposed by peeling off the printed circuit board.

  According to the first aspect of the present invention, the insulating sheet assembly for a liquid crystal module is a fixing of an insulating sheet for a liquid crystal module that covers a printed circuit board on which a controller for controlling a driver IC of the liquid crystal module and other electronic components are mounted. As the double-sided pressure-sensitive adhesive tape for the above, a double-sided pressure-sensitive adhesive tape based on any one of the above plastics is used. Since this double-sided adhesive tape has higher tensile strength than tape using conventional paper mount, the base material may be cut even if it hits the edge of the notch part of the insulating sheet when peeling the base material for pasting Absent. Therefore, the base material can be easily peeled off from the insulating sheet and can be quickly attached to the printed circuit board, so that the liquid crystal module can be assembled efficiently and easily.

  According to the invention according to claim 2 of the present application, the insulating sheet assembly is configured such that the double-sided adhesive tape provided at the fixing position of the insulating sheet is applied with an adhesive along one side of the base material. Since the width of the base material is wider than the width, there is a gap between the insulating sheet and the base material where there is no adhesive material, making it easy for the operator's toes to enter, so that the base material is easy to peel off and peel off As in the first aspect of the invention, the liquid crystal module can be assembled efficiently and easily.

  According to the invention according to claim 3 of the present application, in the insulating sheet assembly for a liquid crystal module, since the double-sided adhesive tape is previously attached to a predetermined position of the insulating sheet, the attachment to the printed circuit board is quickly performed. Therefore, the liquid crystal module can be assembled efficiently and easily.

  According to the invention according to claim 4 of the present application, in the insulating sheet assembly for a liquid crystal module, the rising portion formed on the insulating sheet and the double-sided adhesive tape are applied to the opposite sides of the rising portion. Since the attachment to the circuit board can be performed promptly, the liquid crystal module can be assembled efficiently and easily.

  According to the invention according to claim 5 of the present application, in the insulating sheet assembly for a liquid crystal module, the insulating sheet in which the hook notch portion is formed is provided with the notch having the same shape at the same position as the hook notch portion. Since the double-sided pressure-sensitive adhesive tape is integrally provided by aligning both positions, the double-sided pressure-sensitive adhesive tape cannot be pushed up by the hook, so that it is possible to provide a liquid crystal module in which the insulating sheet is firmly fixed.

  According to the invention according to claim 6 of the present application, in the insulating sheet assembly for a liquid crystal module, the double-sided adhesive tape not provided with the notch is provided on the insulating sheet on which the hook notch is formed. The shape is a simple rectangle, no special mold cost for processing the double-sided adhesive tape is required, and the processing cost is low.

  According to the invention of claim 7 of the present application, in the insulating sheet assembly for a liquid crystal module, the base material and the insulating sheet of the double-sided pressure-sensitive adhesive tape are made of the same material plastic sheet, which is effective in reducing the manufacturing cost.

  According to the invention of claim 8 of the present application, in the method of attaching an insulating sheet that covers a printed circuit board on which a controller for controlling a driver IC of a liquid crystal module and other electronic components are mounted, one surface is adhered to the insulating sheet. As a double-sided pressure-sensitive adhesive tape for fixing an insulating sheet, a double-sided pressure-sensitive adhesive tape based on any one of polyethylene terephthalate, polyimide, polyphenylene sulfide, polyether ether ketone, polyether ketone and polyether is used. An insulating sheet is attached to the printed circuit board by fixing the other adhesive surface of the double-sided adhesive tape exposed by peeling to the printed circuit board. Since this double-sided pressure-sensitive adhesive tape has a higher tensile strength than the conventional paper tape, the substrate is less likely to be cut even when it hits the edge of the notch when the substrate is peeled off for attachment. Therefore, it is easy to attach the insulating sheet to the liquid crystal display device, and the liquid crystal module can be assembled quickly.

  As described above, according to the present invention, it is possible to quickly and easily cover and fix the insulating sheet to the printed circuit board in the liquid crystal module, and to perform assembly work efficiently. When applied to the assembly manufacturing of the above, excellent effects can be obtained.

  Hereinafter, embodiments of an insulating sheet assembly for a liquid crystal module according to the present invention will be described in detail with reference to the accompanying drawings. However, the following examples illustrate an insulating sheet for embodying the technical idea of the present invention, and are not intended to specify the present invention in this example. The present invention can be equally applied to various modifications without departing from the technical idea shown in the claims.

  FIG. 1 is a perspective view showing an embodiment of an insulating sheet assembly for a liquid crystal module according to the present invention. FIG. 2 is an exploded perspective view in which the base material of the adhesive tape is peeled from the insulating sheet of FIG. FIG. 3 is a plan view showing another embodiment of an insulating sheet assembly for a liquid crystal module. 4A is a cross-sectional view of the XX portion of FIG. 3, and FIG. 4B is an enlarged view of the L portion of FIG. 4A. FIG. 5 is a perspective view of a liquid crystal module using an insulating sheet as viewed from the back. FIG. 6 is a cross-sectional view of the YY portion showing the structure of the liquid crystal module of FIG. FIG. 7 is a perspective view showing still another embodiment of the insulating sheet assembly for a liquid crystal module according to the present invention, and FIG. 8 is an exploded perspective view in which the base material of the adhesive tape is peeled from the insulating sheet of FIG. is there. 9 is a plan view of FIG. 7, FIG. 10 (a) is a ZZ sectional view of FIG. 9, and FIG. 10 (b) is an enlarged view of a portion M of FIG. 10 (a).

  FIG. 1 is a perspective view showing an embodiment of an insulating sheet assembly for a liquid crystal module according to the present invention, and shows an insulating sheet 4 to which a double-sided adhesive tape 1 is attached. The insulating sheet 4 has a raised portion 6 formed on one side thereof, and is provided with notches 5 a and 5 b on the opposite side 5. A double-sided adhesive tape 1 is attached to the insulating sheet 4. The double-sided pressure-sensitive adhesive tape 1 has a base material 2 made of any one of polyethylene terephthalate, polyimide, polyphenylene sulfide, polyetheretherketone, polyetherketone, and polyether, and a double-sided pressure-sensitive adhesive material 3 is applied on one side thereof. Is attached along the side 5 of the insulating sheet.

  FIG. 2 is a perspective view showing a state where the base material 2 of the double-sided pressure-sensitive adhesive tape 1 is peeled from the insulating sheet 4 of FIG. The double-sided pressure-sensitive adhesive tape 1 is provided with notches 7 a and 7 b corresponding to the notches 5 a and 5 b of the insulating sheet 4. Since the double-sided pressure-sensitive adhesive tape 1 has a high tensile strength by using the above-mentioned material as the base material 2, when the base material 2 is peeled off from the insulating sheet 4, the double-sided pressure-sensitive adhesive tape 1 hits the edge of the notch portions of the insulating sheet notches 5 a and 5 b Also, the base material 2 is rarely cut. When the base material 2 is peeled off, the adhesive material 3 remains along the side 5 of the insulating sheet 4 so that the insulating sheet 4 can be attached to the printed circuit board 13.

  FIG. 3 is a plan view of another embodiment of an insulating sheet assembly for a liquid crystal module according to the present invention. The insulating sheet 34 is formed of the same material as the base material of the double-sided pressure-sensitive adhesive tape, such as polyethylene terephthalate, polyimide, polyphenylene sulfide, polyether ether ketone, polyether ketone, and polyether, and an upright portion 36 is formed on one side thereof. The side 35 is provided with notches 35a and 35b. The double-sided pressure-sensitive adhesive tape 31 is attached to the insulating sheet 34, but in this embodiment, it is provided on both the side 35 and the upright portion 36. In this case, the double-sided pressure-sensitive adhesive tape 31 has an adhesive material 33 along one side of the base material 32 as shown in the XX cross-sectional view of FIG. 4A and the partially enlarged view of FIG. The width B of the base material 32 is made wider than the width A of the adhesive material 33. Thereby, the double-sided adhesive tape 31 has a portion where the adhesive material 33 is applied in the width direction and a portion where the adhesive material 33 is not present, and a gap D is formed between the insulating sheet 34 and the base material 32 in the portion where the adhesive material 33 is not present. This makes it easier for the operator's toes to enter, so that the base material 32 can be easily peeled off and the time for peeling can be shortened. The double-sided pressure-sensitive adhesive tape 31 made of the material applied to the raised portion 36 formed on the insulating sheet 34 and the opposite side 35 of the raised portion 36 allows the base material 32 to be easily peeled off from the insulating sheet 34, and the printed circuit board 13. As a result, the liquid crystal module can be assembled efficiently and easily. Further, since the width of the base material 32 is widened, there is little risk of cutting due to interference of the edges of the notch portions during the peeling operation.

  FIG. 5 is a diagram showing a usage state of the double-sided adhesive tape of FIGS. 3 and 4, and is an assembled perspective view of the liquid crystal module assembled with the component parts of FIG. 6 is a cross-sectional view of the YY portion showing the structure of the liquid crystal module of FIG. 5 and 6, symbols are assigned in common with FIG. 11, 11 is a liquid crystal panel, 13 is a printed circuit board, 14 is a resin frame, 15 is a prism sheet, 16 is a diffusion sheet, and 17 is a light guide plate. , 19 is a bottom plate, 25 is a hook, 20 is a lamp set, 21 is a linear lamp, and 22 is a front frame. The insulating sheet 34 has a raised portion 36 attached to the side surface of the front frame 22 so as to cover the TCP 12 and the printed circuit board 13, and an opposite side 35 is attached to the end of the printed circuit board 13. If it carries out like this, the insulating sheet 34 will be fixed to the vertical direction and a horizontal direction, and firm fixation will be obtained. The printed circuit board 13 is locked by a hook 25 formed on the bottom plate 19, but the insulating sheet 34 on which the hook notches 35a and 35b are formed has the same shape as the hook notches 35a and 35b. If the double-sided adhesive tape provided with the notches 37a and 37b is provided with the both positions integrated, the double-sided adhesive tape 31 cannot be pushed up by the hook 25, so the insulation sheet 34 is firmly fixed. Liquid crystal module can be provided.

  FIG. 7 is a perspective view showing still another embodiment of an insulating sheet assembly for a liquid crystal module according to the present invention, and shows an insulating sheet 74 to which a double-sided adhesive tape 71 is attached. The insulating sheet 74 has an upright portion 76 formed on one side, and the opposite side 75 is provided with notches 75a and 75b, which are not visible in the drawing. Double-sided adhesive tape 71 is affixed to insulating sheet 74. The double-sided adhesive tape 71 has a base material 72 made of any one of polyethylene terephthalate, polyimide, polyphenylene sulfide, polyetheretherketone, polyetherketone and polyether, and a double-sided adhesive material 73 is applied on one side thereof. Is attached along the side 75 of the insulating sheet 74. In this embodiment, the double-sided pressure-sensitive adhesive tape 71 is provided with the double-sided pressure-sensitive adhesive tape 71 not provided with the notch on the insulating sheet 74 on which the hook notch is formed. There is an advantage that the mold cost is unnecessary and the processing cost is low.

  FIG. 8 is a perspective view showing a state where the base material 72 of the double-sided pressure-sensitive adhesive tape 71 is peeled from the insulating sheet 74 of FIG. Since the double-sided pressure-sensitive adhesive tape 71 uses the above-mentioned material as the base material 72 and has a higher tensile strength than the conventional paper tape, when the base material 72 is peeled off from the insulating sheet 74, a notch 75a of the insulating sheet, Even if it hits the edge of 75b, there is little possibility that a base material will be cut | disconnected. When the base material 72 is peeled off, the adhesive material 73 remains along the side 75 of the insulating sheet 74, whereby the insulating sheet 74 can be attached to the printed circuit board 13.

  FIG. 9 is a plan view of the insulating sheet 74 of FIGS. The insulating sheet 74 is formed of the same material as the base material 72 of the double-sided pressure-sensitive adhesive tape 71, has an upright portion 76 formed on one side thereof, and provided with notches 75 a and 75 b on opposite sides 75. The insulating sheet 74 is provided with a double-sided adhesive tape 71 on both the side 75 and the upright portion 76. In this case, the double-sided pressure-sensitive adhesive tape extends along the side 75 of the base material 72 as shown in FIG. 10A which is a ZZ cross-sectional view of FIG. 9 and an enlarged view of FIG. The adhesive material 73 is applied, and the width B ′ of the base material 72 is made wider than the width A ′ of the adhesive material 73. As a result, the double-sided pressure-sensitive adhesive tape 71 has a portion where the adhesive material 73 is applied in the width direction and a portion where the adhesive material 73 is not present. This makes it easier for the toe to enter, so that the substrate 72 can be easily peeled off and the time for peeling can be shortened. The double-sided pressure-sensitive adhesive tape 71 applied to the raised portion 76 formed on the insulating sheet 74 and its opposite side 75 facilitates the peeling of the base material 72 from the insulating sheet 74, and can be quickly applied to the printed circuit board 13. Therefore, the liquid crystal module can be assembled efficiently and easily.

  The double-sided pressure-sensitive adhesive tape may be provided not only on the upright portion and the opposite side of the insulating sheet but also on other sides or at any location.

  In addition, if the insulating sheet is formed of the same material as the base material of the double-sided adhesive tape such as polyethylene terephthalate, polyimide, polyphenylene sulfide, polyether ether ketone, polyether ketone and polyether, it is effective in reducing the manufacturing cost. is there.

  Polyethylene terephthalate, polyimide as a double-sided adhesive tape for fixing an insulating sheet with one side affixed to an insulating sheet when attaching an insulating sheet that covers a printed circuit board mounted with a controller or other electronic component that controls a driver IC The other adhesive surface of the double-sided pressure-sensitive adhesive tape exposed by peeling off the substrate using a double-sided pressure-sensitive adhesive tape based on any one of polyphenylene sulfide, polyether ether ketone, polyether ketone and polyether When the insulating sheet is attached to the printed circuit board by fixing it to the printed circuit board, this double-sided adhesive tape has higher tensile strength than the conventional paper tape, so it is an edge when peeling the base material for pasting Even if it hits, the base material is not cut. Therefore, it is easy to attach the insulating sheet to the liquid crystal display device, the assembly work can be performed quickly, and the manufacturing effect is great.

  In addition, a printed circuit board of a liquid crystal module having a bottom plate that covers the back surface of the liquid crystal module, a front frame that covers the periphery of the front surface of the liquid crystal module and the side surface of the liquid crystal module, and a printed circuit board connected to the liquid crystal panel via the TCP is provided. In the liquid crystal module in which the insulating sheet to be coated is fixed to at least the side surface of the front frame and the printed circuit board by using a double-sided adhesive tape made of any one of the above materials as a base material, the insulating sheet has the vertical and horizontal directions. It becomes fixed in the direction, and a firmly fixed one is obtained.

  In addition, irrespective of the above Example, the shape of an insulating sheet can be designed variously according to the shape of a printed circuit board.

It is a perspective view which shows one Example of the insulation sheet assembly for liquid crystal modules which concerns on this invention. It is the disassembled perspective view which peeled the base material of the double-sided adhesive tape from the insulating sheet of FIG. It is a top view which shows the other Example of the insulation sheet assembly for liquid crystal modules which concerns on this invention. 4A is a partial cross-sectional view of the insulating sheet assembly for the liquid crystal module of FIG. 3, FIG. 4A is a cross-sectional view of the XX portion of FIG. 3, and FIG. 4B is L of FIG. It is an enlarged view of a part. It is the perspective view which looked at the liquid crystal module using an insulating sheet from the back. It is sectional drawing of the YY part which shows the structure of the liquid crystal module of FIG. It is a perspective view which shows the further another Example of the insulation sheet assembly for liquid crystal modules which concerns on this invention. It is the disassembled perspective view which peeled the base material of the double-sided adhesive tape from the insulating sheet of FIG. It is a top view of the insulating sheet of FIG. 10A is a sectional view taken along the line ZZ in FIG. 9, and FIG. 10B is an enlarged view of a portion M in FIG. 10A. It is an exploded perspective view which shows the structure of a liquid crystal display device. It is the perspective view seen from the back of the conventional liquid crystal module. FIG. 13A is a perspective view of a conventional insulating sheet assembly for a liquid crystal module, and FIG. 13B is an enlarged view of an N portion. It is an assembly top view of the insulation sheet assembly for liquid crystal modules of FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1, 31, 71 Double-sided adhesive tape 2, 32, 72 Base material 3, 33, 73 Adhesive material 4, 34, 74 Insulation sheet 5, 35, 75 Opposite side 5a, 5b, 35a, 35b, 75a, 75b Notch 6, 36, 76 Upright part 7a, 7b, 37a, 37b, 77a, 77b Notch 10 Liquid crystal display device 11 Liquid crystal panel 13 Printed circuit board 14 Resin frame 15a, 15b Prism sheet 16a, 16b Diffusion sheet 17 Light guide plate 18 Reflection Sheet 19 Bottom plate 20a, 20b Lamp set 21 Linear lamp 22 Front frame 23 Insulating sheet 25 Hook

Claims (8)

An insulating sheet for covering a printed circuit board on which a controller for controlling a driver IC of a liquid crystal module and other electronic components are mounted, the insulating sheet having one surface coated with a base material In the insulating sheet assembly for a liquid crystal module to which a double-sided adhesive tape for fixing is attached, as the base material, any one of polyethylene terephthalate, polyimide, polyphenylene sulfide, polyether ether ketone, polyether ketone, and polyether An insulating sheet assembly for a liquid crystal module, characterized by using the above. In the insulating sheet assembly, the double-sided adhesive tape provided on the insulating sheet is provided with an adhesive material along one side of the base material, and the width of the base material is wider than the width of the adhesive material. The insulating sheet assembly for a liquid crystal module according to claim 1, wherein the assembly is an insulating sheet assembly. The insulating sheet assembly for a liquid crystal module according to claim 1 or 2, wherein the double-sided adhesive tape is attached to a predetermined position of the insulating sheet to fix the insulating sheet. The insulating sheet assembly for a liquid crystal module according to claim 3, wherein the double-sided pressure-sensitive adhesive tape is attached to a rising portion formed on the insulating sheet and an opposite side of the rising portion. The double-sided pressure-sensitive adhesive tape provided with a notch of the same shape at the same position as the hook notch part is integrally attached to the insulating sheet in which the hook notch part is formed by aligning both positions. The insulating sheet assembly for a liquid crystal module according to claim 3. 4. The insulating sheet assembly for a liquid crystal module according to claim 3, wherein one surface of a double-sided pressure-sensitive adhesive tape not provided with a notch is adhered to the insulating sheet in which the hook notch is formed. . The insulating sheet assembly for a liquid crystal module according to any one of claims 1 to 6, wherein the base material of the double-sided pressure-sensitive adhesive tape and the insulating sheet are formed from a plastic sheet of the same material. In a method of attaching an insulating sheet that covers a printed circuit board on which a controller for controlling a driver IC of a liquid crystal module and other electronic components are mounted, a double-sided adhesive tape for fixing the insulating sheet having one surface adhered to the insulating sheet As the double-sided adhesive that was revealed by peeling the base material using a double-sided adhesive tape based on any one of polyethylene terephthalate, polyimide, polyphenylene sulfide, polyetheretherketone, polyetherketone and polyether An insulating sheet attaching method for a liquid crystal module, wherein the insulating sheet is attached to the printed circuit board by fixing the other adhesive surface of the tape to the printed circuit board.

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