JP2006317865A - Method for manufacturing display apparatus, and planar member - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To prevent damages in a planar member by covering the surface in at least a display region of the planar member with a protective layer. <P>SOLUTION: In a method for manufacturing a display apparatus 10, a planar liquid crystal panel 11 as it is received by a frame 14 constituting a backlight device 12 is held in a pinched state by a frame-like bezel 13 mounted on the front side of the panel. A polarizing plate 25 in the front side, constituting the liquid crystal panel 11, comprises a main body 33 and a protective film 35 covering the surface of the main body 33. The protective film 35 has a separable portion 37 at a border position between a display region protective part 35a covering a display region 33a of the main body 33 and a bezel contact region protective part 35b covering a bezel contact region 33b of the main body 33. In a stage of clamping the polarizing plate 25 between the bezel 13 and the frame 14, the display region 33a is covered with the display region protective part 35a, while the bezel contact region protective part 35b is peeled to expose the surface of the bezel contact region 33b. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a display device manufacturing method and a planar member.

  A liquid crystal display device, which is a type of display device, is roughly configured to have a backlight device as an external light source attached to the back side of a liquid crystal panel. The liquid crystal panel is held in a state of being sandwiched between a frame-shaped bezel that is arranged on the front side and surrounds the display area, and a frame-shaped frame that is a part of the backlight device arranged on the back side. The liquid crystal panel is composed of a pair of glass substrates, a liquid crystal filled between the glass substrates, and a pair of polarizing plates attached to the outer surfaces of the glass substrates. Of these, a protective film for protecting the surface is attached to the polarizing plate so as to be peelable.

  Next, a manufacturing method of the liquid crystal display device having the above structure will be described. After the liquid crystal is filled between the opposed glass substrates and the glass substrates are bonded together, an operation of attaching a polarizing plate to the outer surface is performed. If a protective film is peeled off about the polarizing plate of the back side among the obtained liquid crystal panels, it will be mounted on the flame | frame of a backlight apparatus. Thereafter, the protective film of the polarizing plate on the front side is peeled off, and then the bezel is placed on the front side of the liquid crystal panel and the bezel is fixed to the frame with screws.

In addition, what was described in following patent document 1 is known as an example of the above liquid crystal display devices.
JP 2001-91947 A

  By the way, when fixing the bezel to the frame, there is a possibility that parts such as screws are accidentally dropped on the polarizing plate on the front side. However, since the protective film is already peeled off and the entire surface is exposed at this stage, the surface of the polarizing plate may be damaged by the dropped screws. In particular, the larger the liquid crystal display device, the greater the number of parts such as screws used, and the surface area of the polarizing plate also increases.

  However, for example, if the work to attach the bezel without removing the protective film of the polarizing plate on the front side, a part of the protective film is sandwiched between the polarizing plate and the bezel, so the protective film is peeled off You will not be able to.

  The present invention has been completed based on the above circumstances, and an object thereof is to prevent damage to a planar member.

  As a means for achieving the above object, a manufacturing method of a display device according to the invention of claim 1 includes a planar member that has translucency and is attached to the surface in a state where the protective layer can be peeled off, A display device comprising: a receiving member that receives a planar member; and a holding member that holds the planar member between the receiving member and has a substantially frame shape surrounding a display area of the planar member In the manufacturing method of the method, in the step of sandwiching the planar member between the holding member and the receiving member, at least the display region of the planar member is covered with a protective layer. At least the holding member contact area to which the holding member is addressed is characterized in that the surface is exposed.

  According to a second aspect of the present invention, in the first aspect, until the step of placing the planar member on the receiving member, almost the entire surface of the planar member is covered by the protective layer, and this protective layer Has at least a display area protecting portion that covers the display area and a holding member abutting area protecting portion that covers at least the holding member abutting area, and the holding is performed after placing the planar member on the receiving member. Until the member is attached, only the holding member contact region protection portion of the protective layer is peeled off first.

  According to a third aspect of the present invention, in the first or second aspect of the invention, the protective layer includes a display area protection unit that covers at least the display area, and a holding member contact that covers at least the holding member contact area. An area protection portion, and a separable portion that allows the display area protection portion and the holding member contact area protection portion to be separated independently, and placing the planar member on the receiving member. In this case, only the holding member contact region protection portion of the protective layer is peeled first before the holding member is attached.

  The invention of claim 4 is characterized in that, in the invention of claim 3, the separable portion is formed in an endless shape.

  According to a fifth aspect of the invention, in the first or second aspect of the invention, the protective layer is disposed on the inner side of the holding member abutting region in the planar member, and at least the display region. A first protective layer that covers the first protective layer, and a second protective layer that covers the holding member abutting region among the first protective layer and the planar member, and the planar member is disposed on the receiving member. In the place where the first protective layer is peeled off after only the second protective layer is peeled off and then the holding member is attached after mounting the holding member. Has characteristics.

  According to a sixth aspect of the present invention, in the first aspect, the protective layer covers at least the display area of the planar member, and the holding member contact area is exposed. However, it has characteristics.

  The planar member according to the invention of claim 7 is a planar member constituting the display device by being held in a state of being sandwiched between the receiving member and a holding member having a substantially frame shape surrounding the display region. In addition, the display layer protection has a translucency and is attached to the surface in a state where the protective layer can be peeled, and the protective layer covers at least the display area of the planar member. It is characterized in that a separable part is provided that allows the part and the holding member abutment area protection part covering at least the holding member abutment area to which the holding member is addressed to be separated independently.

  The invention of claim 8 is characterized in that, in the invention of claim 7, the separable portion is formed in an endless shape.

  The planar member according to the invention of claim 9 is a planar member constituting the display device by being held in a state of being sandwiched between the receiving member and a holding member having a substantially frame shape surrounding the display region. The protective layer is attached to the surface in a state where the protective layer can be peeled off, and the protective layer is disposed on the inner side of the holding member contact region to which the holding member is addressed. In addition, the first protective layer that covers at least the display area, and the second protective layer that covers the first protective layer and the holding member contact area are stacked.

  The planar member according to the invention of claim 10 is a planar member constituting the display device by being held in a state of being sandwiched between the receiving member and a holding member having a substantially frame shape surrounding the display region. And having a translucency and a structure in which a protective layer is attached to the surface in a peelable state, and the protective layer exposes a holding member contact area to which the holding member is addressed. Further, the present invention is characterized in that it is configured to cover at least the display area.

<Invention of Claim 1>
When sandwiching the planar member between the holding member and the receiving member, the surface of at least the display region of the planar member is covered with the protective layer, so that the surface of the display region in the planar member during the mounting operation Can be prevented from being damaged. At the same time, the surface of at least the holding member contact area to which the holding member is addressed is exposed, and the protective layer is not sandwiched. Therefore, the protective layer is easily peeled after the mounting operation is finished. be able to.

<Invention of Claim 2>
Until the holding member is attached, almost the entire surface of the planar member can be protected by the protective layer.

<Invention of Claim 3>
Since the separable portion is provided in the protective layer, it is possible to easily perform the operation of first peeling only the holding member contact region protective portion of the protective layer.

<Invention of Claim 4>
The work of peeling only the holding member contact area protection portion of the protective layer first can be performed with one action, and the workability can be improved.

<Invention of Claim 5>
For example, when compared with the case where a single protective layer is separated, there is no need to perform the separation work, so that the workability is good.

<Invention of Claim 6>
For example, when the protective layer also covers the holding member contact area, it is unnecessary to perform such work as compared with the case where only that part needs to be peeled first, so that workability is improved.

<Invention of Claim 7>
Only the holding member contact region protection part of the protective layer is peeled first, and then the work of sandwiching the planar member between the holding member and the receiving member can be performed. At this time, since at least the display area is covered with the display area protection unit, it is possible to prevent the display area from being damaged during the mounting operation. Thereafter, even when the display area protection part is peeled off, it is not sandwiched between the holding member and the receiving member, so that the peeling work can be easily performed.

<Invention of Claim 8>
The work of peeling only the holding member contact area protection portion of the protective layer first can be performed with one action, and the workability can be improved.

<Invention of Claim 9>
Only the second protective layer of the protective layer is peeled first, and then an operation of sandwiching the planar member between the holding member and the receiving member can be performed. At this time, since the surface of at least the display area is covered with the first protective layer, it is possible to prevent the surface of the display area from being damaged during the mounting operation. Thereafter, even when the first protective layer is peeled off, it is not sandwiched between the holding member and the receiving member, so that the peeling work can be easily performed. In addition, for example, as compared with the case where one protective layer is separated, it is not necessary to perform such an operation, so that workability is improved.

<Invention of Claim 10>
An operation of sandwiching the planar member between the holding member and the receiving member with the holding member contact area exposed can be performed. At this time, since at least the display area is covered with the protective layer, the surface of the display area can be prevented from being damaged during the mounting operation. Thereafter, even when the protective layer is peeled off, it is not sandwiched between the holding member and the receiving member, so that the peeling work can be easily performed. Moreover, for example, when the protective layer also covers the holding member contact area, it is unnecessary to perform such work, so that the workability is improved. .

<Embodiment 1>
A first embodiment of the present invention will be described with reference to FIGS. In the first embodiment, a manufacturing method of a liquid crystal display device 10 which is a kind of display device will be described. In the following, the vertical direction is based on FIG.

  As shown in FIG. 1, the liquid crystal display device 10 roughly includes a planar liquid crystal panel 11, a backlight device 12 that is an external light source disposed on the back side thereof, and an abbreviation for holding the liquid crystal panel 11. And a frame-like bezel 13. The liquid crystal panel 11 is received by a frame 14 constituting the backlight device 12 and is held between the frame 14 and a bezel 13 fixed to the frame 14 from the front side. .

  The backlight device 12 will be described in detail. As shown in FIG. 2, the backlight device 12 roughly includes a rectangular metal base 15 having an open top surface and a plurality of optical units attached so as to cover the opening of the base 15. A sheet 16 (four sheets of a diffusion plate, a diffusion sheet, a lens sheet, and a brightness enhancement sheet in order from the bottom), a frame 14 that can hold the optical sheet 16 between the base 15 and the inside of the base 15 And a plurality of cold cathode tubes 17 which are lamps housed in the. Each optical sheet 16 is for converting substantially linear light emitted from each cold cathode tube 17 into a planar shape, and is formed in a rectangular planar shape larger than the display area of the liquid crystal display device 10. . Each optical sheet 16 is stacked in the vertical direction and held in a state where the outer peripheral edge portion outside the display area is sandwiched between the outer peripheral edge portion of the base 15 on the back side and the frame-like frame 14 on the front side. It has become so.

  The frame 14 is formed in a frame shape by press molding a metal plate or the like, and protrudes downward from the outer peripheral end of the receiving portion 18 that can receive the liquid crystal panel 11 and the receiving portion 18. It is comprised from the surrounding wall part 19 surrounding the outer side of the surrounding wall part of the base 15. FIG. The receiving part 18 is a holding surface in which a part of the lower surface is addressed to the outer peripheral edge of the optical sheet 16 and can be held between the optical frame 16 and a part of the upper surface of the receiving part 18 with respect to the liquid crystal panel 11. It is considered as a receiving surface. The receiving surface is provided with a positioning portion 20 that can be positioned in the surface direction by contacting the outer peripheral end surface of the liquid crystal panel 11 to be placed. The positioning portion 20 is arranged at three locations on the long side portion and at two locations on the short side portion of the receiving portion 18. Further, the receiving portion 18 is provided with a screw hole 21 into which a screw B for fixing the bezel 13 described later can be screwed. The screw holes 21 are arranged at three locations on the long side portion and at two locations on the short side portion of the receiving portion 18.

  The liquid crystal panel 11 roughly includes a pair of glass substrates 22 and 23, a liquid crystal 24 filled between the glass substrates 22 and 23, and an outer surface of the glass substrates 22 and 23 (the side opposite to the liquid crystal 24 side). And a pair of polarizing plates 25 and 26 attached to the surface. Both glass substrates 22 and 23 face each other and are bonded together with a predetermined gap between them by a spacer, and the liquid crystal 24 filled therebetween is surrounded by a sealant 27. The glass substrate 23 on the backlight device 12 side has switching elements (for example, TFTs) connected to mutually orthogonal source lines and gate lines, and the opposite glass substrate 22 has R, G, B pixel electrodes. Are provided in a matrix. One end side of an SOF 28 (System On Film) is connected to the end portion of the glass substrate 23 via an anisotropic conductive film (ACF) with respect to the source wiring and the gate wiring, and the other end side of the SOF 28 is connected to the other end side of the SOF 28. A printed circuit board 29 is connected. The printed circuit board 29 is fixed to the peripheral wall portion 19 of the frame 14 with screws in a vertical posture while bending the SOF 28.

  In order to display an image on the liquid crystal panel 11 having the above-described configuration, each cold-cathode tube 17 of the backlight device 12 is turned on, and each switching element is driven by appropriately supplying a signal to each wiring. A desired image can be displayed by controlling the alignment state of the liquid crystal 24. Therefore, the display area of the liquid crystal display device 10 (display area 33a of the polarizing plate 25) is substantially equal to the area where the switching elements and the pixel electrodes are disposed (area surrounded by a two-dot chain line in FIG. 3). The outer peripheral edge of the liquid crystal panel 11, that is, the frame-shaped area outside the display area is a part necessary for fixing the liquid crystal panel 11 to the bezel 13 and the frame 14.

  The bezel 13 is formed in a frame shape by press-molding a metal plate or the like. The bezel 13 is directed to the front surface side of the liquid crystal panel 11. The peripheral wall part 31 is arranged on the outer side of the 14 peripheral wall parts 19. The lower surface side of the holding unit 30 is a pressing surface for the liquid crystal panel 11. The holding unit 30 is formed in a rectangular frame shape that surrounds the display area of the liquid crystal panel 11, and specifically, has a size such that the position of the inner peripheral end face 30 a is arranged slightly outside the display area. It is formed (FIG. 8). The holding portion 30 is provided with an insertion hole 32 through which a screw B for fixing the bezel 13 to the frame 14 can be inserted. The insertion holes 32 are arranged at three places on the long side portion and two places on the short side portion of the holding portion 30.

  Here, the polarizing plates 25 and 26 constituting the liquid crystal panel 11 will be described in detail. The polarizing plates 25 and 26 are provided with main body portions 33 and 34 including polarizers that have translucency and can limit vibration of a passing light wave in a predetermined direction. The glass substrate 22 or 23 is held in an attached state by an adhesive layer provided on the substrate. The main body portions 33 and 34 are formed in a rectangular plane shape with substantially the same size as the corresponding glass substrates 22 and 23, and the thickness dimension is set thinner than the glass substrates 22 and 23. In addition, in the state before affixing the polarizing plates 25 and 26 on the glass substrates 22 and 23, the peeling sheet which is not shown in figure is stuck on the back side of the adhesion layer, and the exposure of the adhesion layer is prevented.

  On the other hand, protective films 35 and 36 for protecting the surface are attached to the front side of the main body portions 33 and 34 (the side opposite to the glass substrates 22 and 23) in a peelable state. The protective films 35 and 36 are made of synthetic resin, are sized to cover almost the entire surface of the main body portions 33 and 34, and have a thickness dimension smaller than that of the main body portions 33 and 34. The protective films 35, 36 are used to transport the polarizing plates 25, 26 from the manufacturing location to the manufacturing location of the liquid crystal panel 11, paste the main body portions 33, 34 to the glass substrates 22, 23, The main purpose is to protect the surfaces of the main body portions 33 and 34 in the process of transporting the liquid crystal panel 11 from the manufacturing location to a location where the liquid crystal panel 11 is assembled to the backlight device 12, and the liquid crystal display device 10 is peeled off in a completed state. It has become so.

  The main body 33 of the polarizing plate 25 attached to the front glass substrate 22 is in contact with a display area 33a corresponding to the display area of the liquid crystal display device 10 and a frame-type bezel where the bezel 13 is directed. The region 33b (outer peripheral edge) is arranged at a predetermined interval. On the other hand, the protective film 35 includes a display area protection part 35a that covers the display area 33a and a bezel contact area protection part 35b that covers the bezel contact area 33b. Specifically, the display area protection unit 35a covers an area slightly outside the display area 33a, and the bezel contact area protection section 35b covers an area slightly inside the bezel contact area 33b. And in the protective film 35, the separable part 37 which can isolate | separate both parts 35a and 35b mutually independently is provided in the boundary position of both parts 35a and 35b.

  Specifically, the separable portion 37 is formed in a frame shape surrounding the display area 33a, that is, an endless shape. The separable part 37 is configured such that short slits penetrating the protective film 35 are arranged in rows at predetermined intervals along a frame-like line surrounding the display region 33a. That is, the separable portion 37 is configured by a broken line perforation. The separable part 37 (the outer peripheral end position of the display area protection part 35a and the inner peripheral end position of the bezel contact area protection part 35b) is outside the display area 33a and the bezel contact area 33b (inside the bezel 13). It is arranged inside the peripheral end face 30a).

  The present embodiment has the above structure, and the manufacturing method thereof will be described. First, the liquid crystal panel 11 and the backlight device 12 are manufactured at respective manufacturing locations.

  The manufacturing method of the liquid crystal panel 11 will be briefly described. When switching elements and pixel electrodes are formed on the glass substrates 22 and 23, respectively, the glass substrates 22 and 23 are bonded to each other while maintaining a predetermined gap. After the liquid crystal 24 is filled between the substrates 22 and 23, polarizing plates 25 and 26 are attached to the surfaces of the corresponding glass substrates 22 and 23, respectively. In attaching the polarizing plates 25 and 26, first, the release sheet on the back side of the polarizing plates 25 and 26 is peeled to expose the adhesive layer, and then the corresponding glass substrate 22 and the main body portions 33 and 34 are aligned. 23 to be addressed.

  The manufacturing method of the backlight device 12 will be briefly described. When the cold cathode tubes 17 are held in parallel in the base 15, the optical sheets 16 are sequentially stacked in the openings of the base 15, and then the frame 14 is attached. By fixing with screws to the base 15, each optical sheet 16 is held between the base 15 and the frame 14.

  Subsequently, an operation of integrally assembling the liquid crystal panel 11 and the backlight device 12 manufactured as described above is performed. The protective film 36 on the polarizing plate 26 on the back side of the liquid crystal panel 11 is peeled off from the state shown in FIGS. Then, the liquid crystal panel 11 is placed on the receiving portion 18 in the frame 14 of the backlight device 12. At this time, the liquid crystal panel 11 is positioned with respect to the frame 14 in the surface direction by bringing the outer peripheral end surface of the liquid crystal panel 11 into contact with the positioning portions 20 of the frame 14.

  Next, an operation of peeling only the bezel contact region protection portion 35 b from the main body portion 33 of the protective film 35 of the polarizing plate 25 on the front side is performed. When the end portion of the bezel contact area protection portion 35b is picked and peeled off, the connecting portion between the slits in the separable portion 37 is sequentially cut, so that the display area protection is performed as shown in FIGS. Only the bezel contact region protection part 35b is peeled independently, leaving the part 35a covering the surface of the main body part 33. At this time, since the separable part 37 is formed in a frame shape, the bezel contact area protection part 35b can be easily peeled off by a one-action operation. In addition, before and after the work of peeling the bezel contact area protection part 35b, the work of fixing each printed circuit board 29 to the frame 14 with screws is performed.

  Thereafter, an operation of fixing the bezel 13 is performed. When the bezel 13 is placed from the front side while being aligned with respect to the frame 14 and the liquid crystal panel 11 in the plane direction, the holding portion 30 of the bezel 13 contacts the bezel of the protective film 35 in the main body portion 33 of the polarizing plate 25 on the front side. The area protection part 35b is removed and brought into contact with the exposed surface. Therefore, the protective film 35 (display area protection part 35 a) left on the main body part 33 is not sandwiched between the bezels 13.

  Subsequently, as shown in FIGS. 6 to 8, an operation of tightening the screws B in the screw holes 21 of the frame 14 through the insertion holes 32 of the bezel 13 is performed. At this time, there is a possibility that parts such as screws B may be accidentally dropped on the liquid crystal panel 11, and there is a concern that the surface of the main body 33 of the polarizing plate 25 may be damaged. However, since the entire display area 33a of the main body 33 of the polarizing plate 25 is covered and protected by the display area protection section 35a of the protective film 35, the fallen parts such as screws B are protected from the display area. Contact with the portion 35 a and direct contact with the surface of the display region 33 a in the main body portion 33 are prevented. Thereby, it is prevented that the surface of the main-body part 33 of the polarizing plate 25 gets a damage | wound, and the fall of display quality can be prevented.

  When all the screws B are fastened and the liquid crystal panel 11 is integrally held by the bezel 13 with respect to the backlight device 12, as shown in FIGS. 9 and 10, the display area protecting portion 35a of the remaining protective film 35 is obtained. Work to peel off. At this time, since the display area protection part 35a is not sandwiched between the bezels 13, the peeling operation can be easily performed.

  As described above, according to the present embodiment, when the polarizing plate 25 is sandwiched between the bezel 13 and the frame 14, at least the display region 33 a of the main body portion 33 of the polarizing plate 25 is protected by the protective film 35. Since the surface is covered, the surface of the display area 33a of the main body 33 can be prevented from being damaged during the mounting operation. At the same time, the surface of at least the bezel contact area 33b to which the bezel 13 is addressed of the main body 33 of the polarizing plate 25 is exposed and the protective film 35 is not sandwiched. 35 can be easily peeled off.

  Further, since the protective film 35 covers almost the entire surface of the main body 33 of the polarizing plate 25 and only the bezel contact area protective portion 35b is peeled off before the bezel 13 is attached, Until the bezel 13 is attached, almost the entire surface of the main body 33 can be protected.

  In addition, since the separable part 37 is provided on the protective film 35 so that the display area protection part 35a and the bezel contact area protection part 35b can be separated independently from each other, Only the contact area protection part 35b can be easily peeled off first. In addition, since the separable part 37 is formed in a frame shape, that is, in an endless shape, the work of peeling only the bezel contact area protection part 35b can be performed with one action, and workability is improved. Can do.

<Embodiment 2>
A second embodiment of the present invention will be described with reference to FIG. 11 or FIG. In this Embodiment 2, what changed about the protective film of the polarizing plate of the front side is shown. In the second embodiment, redundant description of the same structure, operation, and effects as those in the first embodiment will be omitted.

  As shown in FIGS. 11 and 12, the protective film 42 in the polarizing plate 40 on the front side includes a first protective film 42a that is slightly larger than the display area 41a of the main body 41 but slightly smaller than the bezel contact area 41b, and the main body. The second protective film 42b having substantially the same size as the portion 41 is laminated. Among these, the 1st protective film 42a by which the whole region is directly affixed with respect to the surface of the main-body part 41 covers the display area 41a among the main-body parts 41, but does not cover the bezel contact area 41b. On the other hand, the second protective film 42b includes the entire area of the surface of the first protective film 42a and the area of the surface of the main body 41 that is not covered by the first protective film 42a (the bezel contact area 41b and a slight area inside the area). ) And pasted directly. Therefore, the bezel contact area 41b of the main body 41 is covered only by the outer peripheral edge of the second protective film 42b.

  After the liquid crystal panel 11 with the polarizing plate 40 having the above-described configuration is placed on the frame 14 of the backlight device 12, when fixing the bezel 13, only the outer second protective film 42b is first peeled off first. . Then, although the bezel contact area 41b in the main body part 41 of the polarizing plate 40 on the front side is exposed, the display area 41a remains covered with the first protective film 42a. In this state, the work for fixing the bezel 13 is performed. At this time, the first protective film 42a is not sandwiched between the bezels 13 and even if parts such as the screw B are accidentally dropped, Since the surface of 41 is covered with the first protective film 42a, the surface of the main body 41 is prevented from being damaged.

  As described above, according to the present embodiment, since the protective film 42 has a two-layer structure, the separation work becomes unnecessary as compared with the case where the single protective film is separated as in the first embodiment. Moreover, since it is not necessary to perform special processing with respect to a protective film, such as forming a separable part, cost reduction can be achieved.

<Embodiment 3>
A third embodiment of the present invention will be described with reference to FIG. In this Embodiment 3, what changed the shape of the protective film of the polarizing plate of the front side is shown. In the third embodiment, the description of the same structure, operation, and effect as in the first embodiment is omitted.

  As shown in FIG. 13, the protective film 52 attached to the front-side polarizing plate 50 is slightly larger than the display area 51a of the main body 51 and slightly smaller than the bezel contact area 51b (the second embodiment of the second embodiment). 1 is approximately the same size as the protective film 42a). Therefore, the bezel contact region 51b in the surface of the main body 51 is not covered with the protective film 52 and is exposed.

  As described above, according to the present embodiment, it is not necessary to first peel off the portion covering the bezel contact area as in the first and second embodiments, so that workability is improved. Moreover, since it is not necessary to process a protective film like Embodiment 1, and also it is not necessary to make a protective film into a two-layer structure like Embodiment 2, further cost reduction can be achieved. In addition, since it is an area | region outside the display area 51a about the area | region which is not covered with the protective film 52 among the surfaces of the main-body part 51, it has little influence on display quality.

<Other embodiments>
The present invention is not limited to the embodiments described with reference to the above description and drawings. For example, the following embodiments are also included in the technical scope of the present invention, and further, within the scope not departing from the gist of the invention other than the following. Various modifications can be made.

  (1) In the above-described first embodiment, the case where the separable part is configured by a broken line perforation is shown. However, it is a one-dot chain line in which a relatively short slit is arranged after a relatively long slit, or is relatively long. The present invention also includes a structure formed by two-dot chain line perforations in which two relatively short slits are arranged after the slit. In addition to the perforation having a connecting portion, the present invention also includes a slit having no connecting portion over the entire length as a separable portion.

  (2) In Embodiment 1 described above, the separable part is shown as a frame, but the shape thereof can be arbitrarily changed. For example, it is good also as a form which can be made into linear form along the boundary line of the display area protection part and bezel contact area protection part in a protective film, and can be divided | segmented into several and can be peeled.

  (3) In Embodiment 1 described above, the example in which the separable portion is formed in advance on the protective film of the polarizing plate (before being attached to the glass substrate) is shown. For example, the polarizing plate is attached to the glass substrate. Later, the separable portion may be formed by a cutter that can cut only the protective film on the front side.

  (4) In addition to the first and third embodiments, the protective film may cover the entire display area of the main body and a part of the bezel contact area. Specifically, although the protective film has the same size as the main body for the short side, the long side is set to be smaller than the main body and covers the entire long side of the bezel contact area. On the other hand, it is good also as a form which exposes both short side parts. The long side and the short side may be reversed.

  (5) The position of the separable part of the first embodiment described above, the outer peripheral end position of the first protective film of the second embodiment, and the outer peripheral end position of the protective film of the third embodiment can be changed as appropriate. It is also possible to set the same position as the outer peripheral end position of the display area.

  (6) In the above-described embodiments, the holding part of the bezel and the receiving part of the frame are fixed with screws. However, for example, the invention also includes fixing the peripheral wall parts of the bezel and the frame with screws. It is.

  (7) In the above-described embodiment, the polarizing plate of the liquid crystal panel has been exemplified. However, the present invention is also applicable to an optical sheet that is held between a base and a frame in a backlight device, for example.

  (8) The present invention can also be applied to display devices other than liquid crystal display devices, such as plasma displays.

1 is an exploded perspective view of a liquid crystal display device according to Embodiment 1 of the present invention. Disassembled sectional view of a liquid crystal display device LCD panel top view The perspective view which shows the state which peeled off the bezel contact area | region protection part of a protective film after mounting a liquid crystal panel on a flame | frame. Sectional drawing which shows the state which peeled off the bezel contact area | region protection part of the protective film after mounting a liquid crystal panel on a flame | frame The perspective view which shows the state which fixed the bezel Sectional drawing which shows the state which fixed the bezel Top view showing a state in which the bezel is fixed The perspective view which shows the state which peeled off the display area protection part among protective films Sectional drawing which shows the state which peeled off display area protection part among protective films Sectional drawing of the liquid crystal panel which concerns on Embodiment 2 of this invention LCD panel top view The top view of the liquid crystal panel which concerns on Embodiment 3 of this invention

Explanation of symbols

10. Liquid crystal display device (display device)
13 ... Bezel (holding member)
14 ... Frame (receiving member)
25, 40, 50 ... Polarizing plate (planar member)
33a, 41a, 51a ... display area 33b, 41b, 51b ... bezel contact area (holding member contact area)
35, 42, 52 ... Protective film (protective layer)
35a ... Display area protection part 35b ... Bezel contact area protection part (holding member contact area protection part)
37 ... Separable part 42a ... First protective film (first protective layer)
42b ... 2nd protective film (2nd protective layer)

Claims (10)

In the state which has translucency, the sheet-like member affixed in the state which can peel a protective layer on the surface, the receiving member which receives this sheet-like member, and the sheet-like member between this receiving member And a holding member having a substantially frame shape surrounding the display area in the planar member,
In the stage of sandwiching the planar member between the holding member and the receiving member, the surface of at least the display region of the planar member is covered with a protective layer, whereas at least the holding member is addressed. The method for manufacturing a display device is characterized in that the surface of the holding member contact area is exposed. Until the step of placing the planar member on the receiving member, almost the entire surface of the planar member is covered by the protective layer, and the protective layer covers at least the display region, and at least the holding A holding member abutment area protection part that covers the member abutment area;
Only the holding member abutment region protecting portion of the protective layer is peeled first before the holding member is attached after the planar member is placed on the receiving member. Item 12. A method for manufacturing a display device according to Item 1. The protective layer includes at least a display area protection section that covers the display area, and a holding member abutment area protection section that covers at least the holding member abutment area, and the display area protection section and the holding member abutment. It has a separable part that makes the area protection part separable independently,
Only the holding member abutment region protecting portion of the protective layer is peeled first before the holding member is attached after the planar member is placed on the receiving member. A method for manufacturing a display device according to claim 1 or 2. The method for manufacturing a display device according to claim 3, wherein the separable portion is formed in an endless shape. The protective layer is disposed on the inner side of the holding member contact area in the planar member, and includes at least a first protective layer that covers the display area, the first protective layer, and the planar member. Of these, the second protective layer covering the holding member contact region is laminated,
After the planar member is placed on the receiving member and before the holding member is attached, only the second protective layer is peeled off first, and then the holding member is attached, and then the first protection is performed. 3. The method for manufacturing a display device according to claim 1, wherein the layers are peeled off. The method for manufacturing a display device according to claim 1, wherein the protective layer is configured to cover at least the display region of the planar member, and the holding member contact region is exposed. It is a planar member that constitutes a display device by being held between the receiving member and a substantially frame-shaped holding member that surrounds the display area, and has a light-transmitting property and is protected on the surface. The layer is attached in a peelable state,
In the protective layer, a display area protection part that covers at least the display area of the planar member and a holding member contact area protection part that covers at least the holding member contact area to which the holding member is addressed are independently provided. A planar member provided with a separable part that allows separation. The planar member according to claim 7, wherein the separable part is formed in an endless shape. It is a planar member that constitutes a display device by being held between the receiving member and a substantially frame-shaped holding member that surrounds the display area, and has a light-transmitting property and is protected on the surface. The layer is attached in a peelable state,
The protective layer is arranged inside a holding member contact area to which the holding member is addressed, and at least covers the display area, the first protective layer, and the holding member contact area A planar member having a structure in which a second protective layer covering the substrate is laminated. It is a planar member that constitutes a display device by being held between a receiving member and a substantially frame-shaped holding member that surrounds the display area, and has a light-transmitting property and is protected on the surface. The layer is attached in a peelable state,
Although the said protective layer exposes about the holding member contact area where the said holding member is addressed, it is a form which covers the said display area at least, The planar member characterized by the above-mentioned.

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