CN206460235U - Display device and the adhesive sheet for display device - Google Patents

Abstract

The utility model provides display device and the adhesive sheet for display device, and the display device of embodiment includes：Liquid crystal display panel (12)；Cover plate (14), overlappingly located at the display surface of liquid crystal display panel；Back light unit (20), is oppositely disposed with liquid crystal display panel；Housing (16), covering back light unit and liquid crystal display panel, and at least a portion is fixed on cover plate；And adhesives (AD), along liquid crystal display panel located at cover plate.Adhesives (AD) has first area (AR1) and second area (AR2) in the face of the opposite side in the face relative with cover plate, the second area is located at the inner side of first area, the inner side is the liquid crystal display panel side, and at least a portion of housing adheres to second area.

Description

Display device and the adhesive sheet for display device

The cross reference of related application

The application based on and require to enjoy in the Japanese patent application the 2015-256480th submitted on December 28th, 2015 Benefit of priority, entire contents are hereby expressly incorporated by reference.

Technical field

The embodiment described herein be related to display device, for display device adhesive sheet and display device manufacture Method.

Background technology

In recent years, filled as the display of smart mobile phone, personal assistant equipment (PAD), tablet personal computer, car navigation system etc. Put, liquid crystal display device is widely used.Generally, liquid crystal display device include liquid crystal display panel and with the liquid crystal Show that the back side of panel overlappingly configures and be used for the planar illuminating device (back lighting device) for illuminating liquid crystal display panel.The conventional back of the body Electro-optical device has reflecting layer, light guide plate (light guide), optical sheet, the LED as light source, rectangular box-like framed.Reflecting layer, leaded light Plate, the optical sheet laminated configuration in the way of overlapping each other, and insertion is framed.Thus, reflecting layer, light guide plate, the periphery of optical sheet Portion passes through framed holding and positioning.

Or, it is proposed that by the housing (backlight lid) of framed embedded metallic plate, moreover, anti-in framed cavity portion configuration Penetrate the composition of layer, light guide plate and optical sheet.

In recent years, liquid crystal display device is constant to require further frame narrowing with the maximization of viewing area And slimming.But, the close dimension limit that can be formed by injection molding of size of framed width, thickness etc., and And it is difficult to tackle the requirement of further slim narrow frame.

Utility model content

The utility model is to complete in view of the above problems, and its object is to further thin there is provided disclosure satisfy that The display device of the requirement of type narrow frame.

Generally speaking, according to an embodiment, there is provided a kind of display device, it is characterised in that including：LCD Plate, with display surface；Cover plate, overlappingly located at the display surface；Back light unit is relative with the liquid crystal display panel to match somebody with somebody Put；Housing, covers the back light unit and the liquid crystal display panel, and at least a portion is fixed on the cover plate； And adhesives, along the liquid crystal display panel located at the cover plate, the adhesives with the coverage rate The face of the opposite side in the relative face of plate has first area and second area, and the second area is located at the first area Inner side, the inner side is the liquid crystal display panel side, and at least a portion of the housing adheres to the second area.

According to present embodiment, can also the housing there is the bottom wall relative with the back light unit and along the bottom wall Periphery erect multiple side walls of setting, and the end edge portion of at least one side wall sticks to the secondth area of the adhesives Domain.According to present embodiment, can also the housing there is the first side wall of a pair of long sides and the second side of a pair of short edges side Wall, the second area of the adhesives is located at the position along each long side of the liquid crystal display panel, the first side wall End edge portion sticks to the second area of the adhesives.

According to present embodiment, can also the second area of the adhesives be located at along the short of the liquid crystal display panel The position on side, the end edge portion of the second sidewall of a side of the housing sticks to the second area of the adhesives.

According to present embodiment, can also the end edge portion of at least one side wall insert the secondth area of the adhesives Domain, and the adhesives is between the end edge portion and the cover plate.

According to present embodiment, can also at least one side wall the end edge portion surface be carried out make it is described The shaggy surface treatment of other parts of the surface than the housing of the end edge portion of at least one side wall.

According to present embodiment, can also the display device also include the stripping that covers the first area of the adhesives From paper.

According to present embodiment, can also the display device also include case lid, the case lid covers the housing, And the cover plate is adhered to by the second area of the adhesives.

According to present embodiment, there is provided a kind of adhesive sheet, it is characterised in that including：Adhesives, forms and surrounds display surface The frame-shaped of plate, the adhesives includes first face Nian Jie with cover plate, and the of the opposite side in first face Two faces have the second area of first area and the inner side positioned at the first area；The first paper that can be peeled off, is adhered to described Second face of adhesives, and cover the first area；And the second paper that can be peeled off, adhere to the adhesives Second face, and cover the second area.

, can also the adhesive sheet also side including being formed at first paper and second paper according to present embodiment The slit on boundary.

According to present embodiment, can also second paper formed must be thicker than first paper.

According to present embodiment, can also the adhesive sheet also include the lining that adheres to the first face of the adhesives Paper.

According to an embodiment of the present utility model, can obtain can realize the display of further slim narrow frame Device.

Brief description of the drawings

Fig. 1 is the stereogram of the display surface side for the liquid crystal display device for showing first embodiment.

Fig. 2 is the stereogram for the rear side for showing the liquid crystal display device.

Fig. 3 is the exploded perspective view of the liquid crystal display device.

Fig. 4 is the exploded perspective view for the rear side for showing the liquid crystal display device.

Fig. 5 A are the sectional views of the liquid crystal display device along Fig. 1 line A-A.

Fig. 5 B are the local sectional views for showing enlarged drawing 5A.

Fig. 6 is the sectional view of the liquid crystal display device along Fig. 1 line B-B.

Fig. 7 is the stereogram for the adhesive sheet for showing the manufacture for the liquid crystal display device.

Fig. 8 is the sectional view of the adhesive sheet along Fig. 7 line F-F.

Fig. 9 is the exploded perspective view of the adhesive sheet.

Figure 10 is the stereogram for the cover plate for showing the manufacturing process for the liquid crystal display device.

Figure 11 is shown in the manufacturing process, liquid crystal display panel is sticked to the cover plate state it is vertical Body figure.

Figure 12 is to show to amplify the local stereogram of the cover plate.

Figure 13 is shown in the manufacturing process, adheres to the cover plate and adhesive sheet of the liquid crystal display panel Exploded perspective view.

Figure 14 is shown in the manufacturing process, and adhesive sheet is adhered to the stereogram of the state of the cover plate.

Figure 15 is to show to amplify the local stereogram of the liquid crystal display device.

Figure 16 is shown in the manufacturing process, is mounted with the stereogram of the liquid crystal display device of the state of housing.

Figure 17 is to show to amplify the local stereogram of the liquid crystal display device.

Figure 18 is the stereogram for showing to be mounted with the display device of the state of housing in the liquid crystal display device.

Figure 19 is the sectional view of the display device along Figure 18 line G-G.

Figure 20 is the exploded perspective view for showing the liquid crystal display device and housing.

Figure 21 is the stereogram for the adhesive sheet for showing variation.

Figure 22 is the sectional view of the adhesive sheet along Figure 21 line H-H.

Figure 23 is the exploded perspective view of the adhesive sheet.

Figure 24 is to show to stand in the decomposition that the cover plate for being stained with liquid crystal display panel adheres to the process of the adhesive sheet Body figure.

Embodiment

Below, various embodiments are described with reference to.

It should be noted that a disclosure only example, for a person skilled in the art in the utility model Purport in the range of the appropriate change that is readily apparent that be also contained in certainly within the scope of the utility model.In addition, accompanying drawing has When in order that explanation is more clear and is schematically subject to table to the width, thickness, shape in each portion etc. compared with actual mode Show, its only example, and explain the utility model in non-limiting manner.In addition, in this specification and Ge Tu, for Identical reference is marked with the part identical part that was described in the figure occurred, it is suitably omitted sometimes detailed Explanation.

(first embodiment)

Fig. 1 and Fig. 2 are the display surface side and rear side for the liquid crystal display device that first embodiment is shown respectively Stereogram, Fig. 3 and Fig. 4 are the exploded perspective views of display surface side and rear side that liquid crystal display device is shown respectively.

Liquid crystal display device 10 be mountable to for example smart mobile phone, tablet terminal, portable phone, notebook type PC, Carried out in the various electronic equipments and display device of pocket game machine, e-dictionary, television equipment, car navigation system etc. Use.

As shown in Figures 1 to 4, liquid crystal display device 10 includes：Active array type flat liquid crystal display panel (with Under, referred to as display panel) 12；Transparent cover plate 14, be overlappingly configured at as display panel 12 a platen surface it is aobvious Show face 12a, and cover overall display surface 12a；The work being oppositely disposed with the back side of another platen surface as display panel 12 For the back light unit 20 of lighting device (back lighting device).Liquid crystal display device 10 has housing 16, and the housing 16 is fixed on covering Panel 14, and cover the rear side of display panel 12 and back light unit 20.

Fig. 5 A are the cross-sectional views of the liquid crystal display device along Fig. 1 line A-A, and Fig. 5 B are the parts for showing enlarged drawing 5A E sectional view, Fig. 6 is the longitudinal section of the liquid crystal display device along Fig. 1 line B-B.As shown in Figures 3 to 6, display panel 12 have：The first substrate SUB1 of rectangular flat shape, the second substrate with the first substrate SUB1 rectangular flat shapes being oppositely disposed The SUB2 and liquid crystal layer LQ being maintained between first substrate SUB1 and second substrate SUB2.Second substrate SUB2 peripheral part First substrate SUB1 is fitted in by encapsulant SE.There is Polarizer PL2 in second substrate SUB2 surface adhesion, form The display surface 12a of display panel 12.Polarizer PL1 is stained with first substrate SUB1 surface (back side of display panel 12).

In display panel 12, turn into the area of encapsulant SE inner side in the state of the top view display panel 12 Domain is provided with rectangular-shaped viewing area (effective display area domain (active area)) DA, in viewing area DA display images. In addition, being provided with rectangular box-like peripheral edge margin ED around the DA of the viewing area.Display panel 12 be have by make come Selectively passed through from the light of back light unit 20 to viewing area DA and the infiltration type of the transmission display function of display image.Display Panel 12, which can both have, corresponds to as display pattern, the main transverse electric field using the transverse electric field along substrate interarea The composition of pattern, it is possible to have display pattern, the longitudinal electric field that main utilization intersects with substrate interarea corresponding to being used as The composition of longitudinal electric field pattern.

In the example in the figures, the end bonding flexible printed circuit substrate (FPC) 22 of first substrate SUB1 short brink, It stretches out from display panel 12.It is used as supply to aobvious in the FPC22 semiconductor elements for being provided with the grade of driving IC chip 21 Show the signal supply source of the drive signal needed for panel 12.

As shown in Fig. 1 to Fig. 5 A, 5B, cover plate 14 is formed such as by the transparent resin of glass plate or acrylic acid series For rectangular flat shape.Cover plate 14 has the width and length bigger than the size (width, length) of display panel 12.By This, (refers to the state that the display panel is confirmed from the normal to a surface directional vision of display panel in top view.It is as follows Sample) under have the area bigger than display panel 12.Cover plate 14 the back side (face of display panel side or with from front Observe the face of the opposite side in the relative face of observer of display surface) it is formed with the light shield layer RS of frame-shaped.In cover plate 14, Region outside the region relative with the viewing area DA of display panel 12 passes through light shield layer RS shadings.Light shield layer RS can be formed In the upper surface (display surface) of cover plate 14.

The back side of cover plate 14 is by transparent adhesive or binding agent, such as from being made up of optics with transparent resin Bonding sheet OCA, adheres to the Polarizer PL2 of display panel 12, in the whole face coverings of the display surface 12a of display panel 12.In addition, viscous Sheeting OCA formation and Polarizer PL2 identical sizes, adhere to Polarizer PL2 in the way of arrangement.

The peripheral part of cover plate 14 is protruded laterally than the outer peripheral edge of display panel 12.Each long side of cover plate 14 with The long side of display panel 12 is in almost parallel state with having predetermined space.Each short side and display panel of cover plate 14 12 short side is in almost parallel state with having predetermined space.In the present embodiment, the long side of cover plate 14 is with showing Show that the width of the long side peripheral part of the interval on the long side of panel 12, i.e. cover plate 14 is formed as the short side than cover plate 14 The width at interval, i.e. the short brink peripheral part of cover plate with the short side of display panel 12 is small.

On the back side of cover plate 14, the adhesives AD of (adhesion) frame-shaped is formed around display panel 12.It is viscous Materials A D is met to be formed such as by the heat adhesive resin thermoplastic plastic, vinyl acetate resin.Adhesives AD weights Light shield layer RS is located at foldedly.As shown in Fig. 5 A, 5B and Fig. 6, adhesives AD has relative with cover plate 14 flat First face AS1, the second flat face AS2 with first face AS1 opposite side, substantially vertical relative to cover plate 14 prolong The side stretched.Adhesives AD the second face AS2 has：First area AR1, is stained with the housing of installation side described later；And Second area AR2, positioned at first area AR1 inner side, the inner side is display panel side, and is fixed with housing described later 16.The cross section of adhesives AD each several part has substantially rectangular shape, a pair be made up of the first face S1 and the second face S2 Long side is located at the position parallel with the back side of cover plate 14, and a pair of short edges being made up of side is located relative to cover plate 14 The substantially vertical position in bottom surface.In addition, adhesives AD thickness (the first face S1 and the second face S2 interval) is formed as ratio The summation of Polarizer PL2 thickness and bonding sheet OCA thickness is slightly thick.

As shown in Figures 3 to 6, adhesives AD first area AR1 forms rectangular box-like, with respectively along display surface It is first short a pair that a pair of first long leg ARL1 of the long side extension of plate 12, the short side 12 respectively along display panel 12 extend Edge ARS1 and along cover plate 14 each short brink ora terminalis extension wide a pair of peripheries edge ARE1 of width.Separately Outside, second area AR2 has：A pair of second long leg ARL2, positioned at the first long leg ARL1 inner side and along display panel 12 long side extension；Second short leg ARS2, positioned at the first short leg ARS1 inner side and along a side of display panel 12 Short side (short side with light source opposite side described later) extends.

As shown in Fig. 5 A, 5B and Fig. 6, in a pair of long legs and a pair of short edges portion, first area AR1 (the first length Edge ARL1, the first short leg ARS1) width W1 be formed as such as 0.6mm~0.8mm (600 μm~800 μm), second area AR2 (the second long leg ARL2, the second short leg ARS2) width W2 is formed as such as 0.2mm~0.4mm (200 μm~400 μ M) left and right.In addition, first area AR1 each periphery edge ARE1 width W3 for example formed as 0.6mm~1.2mm (600 μm~ 1200 μm) left and right.Adhesives AD thickness is formed as about 240 μm.Also, liquid crystal display device 10 is being arranged on mounting shell Before body (セ ッ ト baskets), i.e. in the state of being installed to before display device or electronic equipment, in adhesives AD the firstth area Domain AR1 adheres to shape roughly the same with first area AR1, the first paper RP1 of size, covers first area AR1.

As shown in Figures 2 to 6, the housing 16 of covering back light unit 20 is made up of thin sheet material.Housing 16 for example passes through Bending machining, stamping etc. are carried out to the stainless steel materials of 0.1mm thickness and flat rectangular box (rectangle lid) is formed. The thickness of slab for being capable of housing 16 is thinner, can more make frame narrower, also more the thickness of whole display device can be made thinning.At one In example, the stainless steel materials of 0.1mm thickness are used, but if if the sheet metal using 0.05mm thickness, then side can be made The thin 0.05mm of frame, makes the thickness of thin 0.05mm of whole device.

Under top view, housing 16 is bigger and smaller than the size of cover plate 14 than the size of display panel 12.Housing 16 Have：Rectangular-shaped bottom wall 17a and the side wall (first for a pair of long sides that setting is erected on bottom wall 17a each lateral edges Side wall) 17b and a pair of short edges side side wall (second sidewall) 17c.In the present embodiment, the side wall 17b of long side relative to Bottom wall 17a generally perpendicularly erects setting, extends in the total length on bottom wall 17a long side.The side wall 17c of short brink is the bottom of relative to Wall 17a generally perpendicularly erects setting, extends in the total length of bottom wall 17a short side.These sides wall 17b, 17c from bottom wall 17a height H-shaped is into must be total more a little bit smaller than thickness and the thickness of back light unit 20 described later of display panel 12, and energy Get at the height up to above-mentioned adhesives AD.

In the present embodiment, housing 16 has the side wall from the short brink of a side, is from positioned at light source described later herein The side wall 17c of side end edge portion extends to multiple flanges 18 in outside.In addition, being formed with side wall 17c for being inserted through The FPC of FPC22 and back light unit 20 opening 26.Flange 18 is located at the both sides of opening 26.

As shown in Fig. 2, Fig. 5 A, 5B, Fig. 6, housing 16 as constituted above is configured to covering back light unit 20 and display Panel 12, fixes (adhesion) in cover plate 14 by adhesives AD at least partially.In the present embodiment, housing 16 Side wall 17a, 17b end edge portion are adhered to by using with the common adhesives AD and double faced adhesive tape 24 that are fixed for case lid In the lower surface of cover plate 14, so that housing 16 is fixed in cover plate 14.

In addition to side wall (the side wall of light source side) 17c of the short brink of a side of housing 16, the side of the short brink of the opposing party The side wall 17b of wall 17c and a pair of long sides and the corresponding lateral margin of display panel 12 across extremely small clearance C (for example 0.05mm~0.15mm) and it is relative.The second of these sides wall 17b, 17c upper limb 17S (reference picture 5B) insertion adhesives AD Region AR2 (ARL2, ARS2), is adhered to by adhesives AD and is fixed on cover plate 14.As shown in Figure 5 B, in order to carry Adhesion strength between high and adhesives AD, these sides wall 17b, 17c upper limb 17S surface, which have been carried out, makes these side walls The shaggy surface treatment of 17b, 17c upper limb 17S other parts of the surface than housing 16, the bumps with appropriateness. For example, filing upper limb 17S surface by using coarse file to form bumps or with pickling upper limb 17S become surface The surface treatment of coarse grade is obtained, side wall 17b, 17c upper limb 17S coarse surface can be made to be formed coarse.Thus, improve Upper limb 17S and adhesives AD adhesion strength, can obtain throwing anchor effect.

As shown in Fig. 5 A, 5B and Fig. 6, side wall 17b, 17c are on adhesives AD thickness direction, in adhesives AD Adhesives is fixed in the state of between side wall 17b, 17c upper edge and the back side (light shield layer RS) of cover plate 14 AD second area AR2.By so making adhesives AD between, it can prevent the upper limb 17S directly contacts of side wall from covering The inner surface or light shield layer RS of cover panel 14 and cause damage.In addition, by the adhesives AD elasticity of itself, making to appear in shell The deformation (such as falling iron ball) of body 16 is difficult to be delivered to display panel 12, can avoid the breakage of display panel.By making With material that is soft and can easily extending as adhesives AD, so that static strain is (such as because of the difference of linear expansion coefficient Warpage etc. caused by different) it is difficult to be delivered to display panel, the gap of display panel 12 can be avoided to spread (ギ ャ ッ プ system ラ)。

As shown in fig. 6, the side wall 17c of the short brink of one side is between than between other side walls and display panel 12 Gap bigger gap C is relative with the short side of display panel 12.Side wall 17c flange 18 is adhered to by double faced adhesive tape 24, is fixed on Cover plate 14.For the fixation of flange 18 and cover plate 14, in addition to double faced adhesive tape 24 can be used, it can also use above-mentioned Adhesives AD a part, or epoxy adhesive, UV solidification adhesives etc. can be used.

It is installed on by housing 16 in the state of cover plate 14, the bottom wall 17a of housing 16 and the back side of display panel 12 Leave relative substantially in parallel with gap.The FPC22 extended from display panel 12 be inserted through side wall 17c opening 26 and to The outside extension of housing 16.

In addition, the end edge portion for the side wall for passing through housing 16 is fixed on being not necessarily for adhesives AD second area AR2 The side wall of housing 16, can also simply specially require the side wall 17b of a pair of long sides of narrow frame.At this point it is possible in the opposing party Short brink side wall 17c on flange is set, the flange is firmly fixed on cover plate 14 by adhesive layer etc..

As shown in Figures 3 to 6, back light unit 20 is placed in housing 16, relative with the back side of display panel 12.Backlight list Member 20 includes：The light guide plate LG of rectangular flat shape, rectangular-shaped reflector plate RE, the optical sheet being overlappingly configured on light guide plate LG OS, light is set to be incident to the light source cell 30 of light guide plate LG light.

Reflector plate RE is placed on the bottom wall 17a of housing 16, relative with bottom wall 17a substantially entire surface.Light guide plate LG has： As the first interarea S1 of exit facet, the second interarea S2 of first interarea S1 opposite side and connection the first interarea S1 and Second interarea S2 incident end face EF.In the present embodiment, it regard the one side of light guide plate LG short brink as plane of incidence EF. Light guide plate LG is formed as size (length, width) more a little bit smaller than the inside dimensions of housing 16 under top view, and than display Size bigger the viewing area DA of panel 12.On light guide plate LG thickness of slab, the one side relative with light source cell 30 (enters Penetrate face) thickness of side is most thick, as most thin with the thickness of the one side opposite side surface side of side antithesis.Light guide plate LG is In the state of two interarea S2 are relative with reflector plate RE, overlappingly it is placed on reflector plate RE.Light guide plate LG plane of incidence EF and shell The side wall 17c of the short brink of body 16 leaves relative with gap.Light guide plate LG another side is respectively kept with 0.05mm~0.2mm (50 μm~200 μm) left and right minim gap it is relative with side wall 17b, 17c of housing 16.

Optical sheet OS has photopermeability, is overlappingly placed in light guide plate LG the first interarea S1.In the present embodiment, As optical sheet OS, such as used the diffusion sheet OS1 that is formed as the synthetic resin polyethylene terephthalate and Prismatic lens OS2.These optical sheets OS is overlappingly placed on light guide plate LG the first interarea S1 successively.Each optical sheet OS is formed as The shorter length of length with light guide plate LG width identical width and than light guide plate LG and formed and compare display panel Size bigger 12 viewing area DA.Optical sheet OS at least three lateral margins in addition to the lateral margin of light source side separate predetermined Gap (0.1mm~0.2mm) it is relative with the side wall of housing 16.Moreover, optical sheet OS leaves at the back side with display panel 12 Minim gap it is relative, and then, it is relative also with the whole viewing area DA of display panel 12.

As shown in Fig. 3 and Fig. 6, light source cell 30 includes：The tellite (FPC) 32 of elongated banding, installation Multiple light sources on the FPC32, such as multiple light emitting diodes (LED) 34 and the short side side end that is configured at housing 16 Bar-shaped support frame 36.Multiple LED34 are arranged on FPC32 long side direction (direction parallel with the short side of housing 16) and set Put.In addition, FPC32 has the connection end 32a extended from a lateral margin.

A FPC32 long leg is sticked in support frame 36 by adhesive phase 35, and another long leg passes through bonding Oxidant layer 35 and stick on the light guide plate LG end of plane of incidence EF sides.Thus, multiple LED34 are configured at the short brink of housing 16 Side wall 17c and light guide plate LG plane of incidence EF between, it is relative with plane of incidence EF respectively.Each LED34 height (thickness) is for example Below, more preferably 0.3mm (300 μm) is below by preferably 0.4mm (400 μm).

FPC32 connection end 32a is extended by the side wall 17c of housing 16 opening 26 to the outside of housing 16, And electrically connected with FPC22.As shown in fig. 6, the one end of the optical sheet OS1 of foot light source side exceeds the one of optical sheet OS2 End and extend to light source side, it is and Nian Jie with FPC32 by double faced adhesive tape (not shown).

According to back light unit 20 as constituted above, via FPC22 and FPC32 to the logical upper driving currents of LED34.From The light that LED34 is projected is incided in light guide plate LG from light guide plate LG plane of incidence EF, and is propagated in light guide plate LG, or from leading Tabula rasa LG the second interarea S2 is reflected after projecting by reflector plate RE, and is again incident in light guide plate LG.Passing through this light After road, the light from LED is projected from the whole of the first interarea (exit facet) S1 towards the side of display panel 12.The light of injection passes through light Learn the viewing area DA that display panel 12 is exposed to after piece OS spreads.

The liquid crystal display device 10 according to as more than constituting, using by common adhesives AD by back light unit 20 Housing 16 and housing be installed be fixed on the composition of cover plate 14 so that the adhesive layer of housing fixation for example with setting respectively The situation that double faced adhesive tape is put with the adhesive layer for installing housing fixation is compared, and can be reduced components number, be realized manufacturing cost Reduction and the simplification of manufacturing process.In addition, being fixed separately setting the adhesive layer of housing fixation and installing housing In the case of adhesive layer, tolerance, i.e. gap are produced between the two, the part border width increase.In contrast, by single Adhesives AD formation both, so as in the case where not producing above-mentioned tolerance will install housing fixation first Region is configured close to second area.Thereby, it is possible to make adhesives AD be configured close to display panel 12, display device can be realized Narrow frame.

Then, illustrate the adhesive sheet of the manufacture for liquid crystal display device 10, and use the liquid crystal display of the adhesive sheet One example of the manufacture method of device.

Fig. 7 is the stereogram of adhesive sheet, and Fig. 8 is the sectional view of the adhesive sheet along Fig. 7 line F-F, and Fig. 9 is adhesive sheet Exploded perspective view.

As shown in Figure 7 to 9, the above-mentioned bonding material that adhesive sheet 50 includes lining paper 60, loads and stick on the lining paper 60 Material AD, the peeling paper 70 that can be peeled off overlappingly adhered to adhesives AD.

Adhesives AD is formed such as by the heat adhesive resin thermoplastic plastic, vinyl acetate resin. Adhesives AD has：The first area AR1 of frame-shaped, is adhered to by the case lid of installation housing described later；Second area AR2, position In first area AR1 inner side, and a part for fixed shell 16.First area AR1 has a pair first long leg ARL1, one A pair of the periphery edge ARE1 wide to the first short leg ARS1 and width.Second area AR2 has：Positioned at the first long leg ARL1 inner side, a pair of second long leg ARL2 extended parallel to the first long leg ARL1, positioned at the first short leg ARS1 Inner side and the second short leg ARS2 for being extended parallel to the first short leg ARS1.

Lining paper 60 has：The first rectangular-shaped lining paper BP1, with the width bigger than adhesives AD and length；Second Lining paper BP2, very less than the first lining paper BP1.First lining paper BP1 and the second lining paper BP2 is to abut the mutual states of lateral margin 52a Arrangement.

In adhesives AD, the outer edge ARE1 of a side is positioned on the second lining paper BP2, adhesives AD another portion Divide and be positioned on the first lining paper BP1.First lining paper BP1 and the second lining paper BP2 boundary line (lateral margin 52a) are with outer edge ARE1's Interior lateral margin arrangement.

Peeling paper 70 has the first paper RP1 independent of each other and the second paper RP2.First paper RP1 is formed as and Nian Jie material Expect AD first area AR1 identicals shape and the frame-shaped of size.First paper RP1 overlappingly adheres to the of adhesives AD One region AR1, and cover first area AR1 whole face.Second paper RP2 formation is roughly the same with the first paper RP1 inner space Shape and size it is rectangular-shaped.Second paper RP2 insertion ground configuration the first paper RP1 inner space, its peripheral part with it is Nian Jie Materials A D second area AR2 is overlappingly adhered to, covering second area AR2 whole face.

First paper RP1 and the second paper RP2 independently, are formed to peel off from adhesives AD.As shown in figure 8, In present embodiment, the second paper RP2 is formed as thicker than the first paper RP1 thickness, and the second paper RP2 each lateral margin is connected to the first paper RP1 interior lateral margin, forms ladder 71.As described later, when manufacturing liquid crystal display device, the second paper RP2 is peeled off prior to the first paper P1. During the stripping, using the first paper RP1 and the ladder 71 on the second paper RP2 border, the second paper RP2 easily can be only peeled off.

In addition, a second paper RP2 side short side and the first paper RP1 relative with the short side a side interior lateral margin it Between set slit (gap) 52b.Slit 52b be located at the outer edge ARE1 of an adhesives AD side interior lateral margin and on The position of the first lining paper BP1 stated lateral margin 52a arrangements.

Then, an example for using the manufacture method of the liquid crystal display device of above-mentioned adhesive sheet 50 is illustrated.Such as Figure 10 institutes Show, first, prepare to form light shield layer RS cover plate 14.Then, as shown in figs. 11 and 12, by by optics with transparent The bonding sheet OCA of resin formation, display panel 12 is adhered to the precalculated position of cover plate 14.Now, display panel is configured 12, so that the peripheral part (peripheral edge margin) of display panel 12 is a part of overlapping with light shield layer RS.

Then, as shown in figure 13, above-mentioned adhesive sheet 50 is prepared, in the state of the first lining paper BP1 is only peeled off, configuration exists The top of display panel 12 and cover plate 14.At that time, the FPC22 of display panel 12 is bent upward, be inserted through in The slit 52b of adhesive sheet 50.In this condition, peel off after the second lining paper BP2 and the second paper RP2, such as Figure 14 and Figure 15 institutes Show, adhesives AD is overlappingly adhered to the light shield layer RS of cover plate 14.Now, adhesives AD second area is passed through AR2 a pair of second long leg ARL2 and ARE1 pairs of the periphery edge with a second short leg ARS2 and first area AR1 side The part answered, forms the rectangular-shaped opening portion with the inside dimensions bigger than the profile of display panel 12.By should Each edge of opening portion is used as guiding the adhesion of display panel, can easily and highly accurately carry out adhesives AD to covering The adhesion of cover panel 14.Thus, adhesives AD is configured around display panel 12, in addition, peeling off the second paper RP2 bonding Materials A D second area AR2 exposes around display panel 12.

Then, as shown in Figure 16 and Figure 17, set in housing 16 after back light unit 20, in the rear side of display panel Configure housing 16 and back light unit 20.Also, side wall 17b, 17c of housing 16 upper limb are inserted the second of adhesives AD Region AR2, cover plate 14 is fixed on by adhesives AD.This is matched with, by double faced adhesive tape (not shown) by housing 16 Flange 18 stick to cover plate 14.Process more than, obtains liquid crystal display device 10.

In addition, when installing housing etc. and installing liquid crystal display device 10, the first paper RP1 of adhesive sheet 50 is from adhesives AD is peeled off.So far, the first paper RP1 maintains to adhere to adhesives AD state.

According to the manufacture method of above-mentioned liquid crystal display device, the adhesives AD for forming predetermined shape is only adhered into covering Panel 14, can be formed housing fix with and the adhesive layer fixed of mounting shell body, can realize the reduction of manufacturing process with And the reduction of manufacturing cost.

By the above, according to present embodiment, obtain the display device of further slim narrow frame, adhesive sheet and The manufacture method of the display device.

Then, the display device of other embodiment and the adhesive sheet of variation are illustrated.In addition, following explanation its In its embodiment and variation, pair identical reference marks is assigned with above-mentioned first embodiment identical part, saved Omit or simplify detail explanation, be described in detail centered on the part different from first embodiment.

(second embodiment)

Figure 18 is the stereogram for the liquid crystal display device for showing second embodiment, and Figure 19 is the line G-G along Figure 18 The sectional view of liquid crystal display device, Figure 20 is the exploded perspective view of liquid crystal display device.

According to present embodiment, liquid crystal display device is also included as the case lid 72 for installing housing.Case lid 72 has The rectangular-shaped bottom wall 72a in the same size with cover plate 14, and erect along around bottom wall 72a the multiple of setting Side wall 74b, is integrally formed by synthetic resin or metal.Case lid 72 covers housing 16, configures the back of the body in cover plate 14 Surface side, each side wall 74b upper surface adheres to adhesives AD first area AR1.Thus, case lid 72 passes through adhesives AD is fixed on cover plate 14.The liquid crystal display device of other compositions of liquid crystal display device 10 and above-mentioned first embodiment It is identical.

According to second embodiment as constructed as above, by common adhesives AD by the housing 16 of back light unit 20 with And case lid 72 is fixed on cover plate 14, it is made up of such, components number can be reduced, the reduction of manufacturing cost is realized And the simplification of manufacturing process.Adhesives AD can be made close to display panel configurations, the narrow frame of display device can be achieved.

(the first variation)

Figure 21 is the stereogram for the adhesive sheet for showing the first variation, and Figure 22 is the adhesive sheet along Figure 21 line H-H Sectional view, Figure 23 is the exploded perspective view of adhesive sheet, and Figure 24 is to show to adhere to bonding in the cover plate for being stained with display panel The exploded perspective view of the process of piece.As shown in Figure 21 to Figure 23, according to the first variation, adhesive sheet 50 includes lining paper 60, mounting And the peeling paper 70 that can be peeled off that the adhesives AD and adhesives AD sticked on the lining paper 60 is overlappingly adhered to.

Adhesives AD is formed such as by the heat adhesive resin thermoplastic plastic, vinyl acetate resin.It is viscous Meeting materials A D has：The case lid of housing is installed in first area AR1, adhesion；Second area AR2, in the AR1 of first area Side, a part for fixed shell 16.In this variation, first area AR1 has only a pair of the first long leg ARL1, also, Second area AR2 is located at the first long leg ARL1 inner side, only with a pair extended in parallel respectively with the first long leg ARL1 Second long leg ARL2.That is, adhesives AD is used as the shape for omitting a pair of short edges portion and wide a pair of peripheries edge of width.

In the same manner as above-mentioned first embodiment, lining paper 60 has：The first rectangular-shaped lining paper BP1, with than bonding Width big materials A D and length；Second lining paper BP2, it is more much smaller than the first lining paper BP1.The linings of first lining paper BP1 and second Paper BP2 is arranged side by side to abut the mutual states of lateral margin 52a.Adhesives AD first area AR1 and second area AR2 is placed in On first lining paper BP1.

Peeling paper 70 has separate the first paper RP1 and the second paper RP2.It is same with above-mentioned first embodiment Ground, only the first paper RP1 formation frame-shaped, the first area AR1 of its a pair of long legs and adhesives AD, i.e., a pair first long legs The overlapping adhesions of ARL1.It is relative that first paper RP1 a pair of short edges portion leaves gap in lining paper 60.In addition, a first paper RP1 side Interior lateral margin 80 is located at the lateral margin 52a arrangements with lining paper 60.

Second paper RP2 roughly the same with the first paper RP1 inner space shapes of formation and size it is rectangular-shaped.Second paper RP2 insertions configure the inner space in the first paper RP1, the side edge part of its long side and adhesives AD second area AR2, i.e., Second long leg ARL2 is overlappingly adhered to, covering second area AR2.

First paper RP1 and the second paper RP2 independently, are formed as to peel off from adhesives AD.As shown in figure 22, exist In this variation, the second paper RP2 is formed as thicker than the first paper RP1 thickness, and the second paper RP2 each lateral margin is connected to the first paper RP1 interior lateral margin, forms ladder 71., can be easy using the first paper RP1 and the ladder 71 on the second paper RP2 border during stripping Only peel off the second paper RP2 in ground.

In the case where using the adhesive sheet 50 of the first variation manufacture liquid crystal display device, as shown in figure 24, peeling off In the state of first lining paper BP1 and the second paper RP2, adhesive sheet 50 is configured in the upper of display panel 12 and cover plate 14 Side.At that time, by the FPC22 of display panel 12 warpages upward, it is inserted through in the first paper RP1 inner space.Under the state, The the first paper RP1 lining paper BP2 of interior lateral margin 80 and second lateral margin is connected to FPC22, using the FPC22 as guiding, make to glue Contact pin 50 is moved on the back side of cover plate 14, by adhesives AD, i.e., a pair first long leg ARL1 and a pair second Long leg ARL2 sticks to the inner face of cover plate 14.More particularly, by peeling off the second paper RP2, formed by the first paper RP1 The rectangular-shaped opening portion of the bigger inside dimensions of profile with than display panel 12.Then, by by the opening portion The adhesion that each edge is used as to display panel 12 is guided, and even only sets adhesives AD in the long leg side of display panel 12 Composition, can easily and highly accurately carry out the adhesives AD adhesion to cover plate 14.Thus, in display panel 12 Long side neighbouring configuration adhesives AD, also, a pair of second long leg ARL2 expose to the long side of display panel 12.

Then, set in housing 16 after backlight list, housing 16 and backlight list are configured in the rear side of display panel 12 Member 20.Also, the end edge portion of the side wall of a pair of long sides of housing 16 is inserted to adhesives AD second area AR2, passed through Adhesives AD is fixed on cover plate 14.In the case of using the adhesive sheet 50 of the first variation, a pair of housing 16 The side wall 17c and flange 18 of short brink adhere to cover plate 14 by double faced adhesive tape (not shown) etc..

In addition, when installing the installation liquid crystal display device 10 such as housing, the linings of the first paper RP1 of adhesive sheet 50 and second Paper BP2 is peeled off from adhesives AD.So far, the first paper RP1 maintains to adhere to adhesives AD state.

In the case where the first variation as constructed as above uses adhesive sheet 50, the adhesives of predetermined shape will be only formed AD adheres to cover plate, can be formed housing fix with and the adhesive layer fixed of mounting shell body, manufacture work can be realized The reduction of ordinal number and the reduction of manufacturing cost.In addition, obtaining being capable of the display device and bonding of more slim narrow frame Piece.

Although the description of several embodiments, but these embodiments are intended only as example and proposed, it is not intended that limit Determine the scope of utility model.In fact, novel method and system described here can be implemented in other various modes, Various omissions can be carried out in the range of the objective of utility model is not departed from, replaces, change.These embodiments and its deformation It is included in the scope and spirit of utility model, the utility model that is similarly included in described in claims and its Deng in the range of.

For example, adhesives AD thickness can be with and Polarizer PL2 with the thickness of degree or than Polarizer PL2 and Total small thickness of bonding sheet OCA thickness.

In addition, the optical sheet OS of back light unit 20 is not limited to two, it can increase and decrease as needed.Display panel 12, the back of the body It is polygon when being rectangular-shaped or top view when the component parts and housing 16 of light unit 20 are not limited to top view Shape, circle, ellipse and the other shapes for combining their ellipse, trade shape etc..

As embodiment of the present utility model, by it is above-mentioned it is each constituted and manufacturing process based on, people in the art As long as the appropriate change of member is related to the whole composition for implementing to obtain and manufacturing process includes purport of the present utility model, fall within Scope of the present utility model.In addition, on other action effects for being obtained by above-mentioned embodiment from the note of this specification Carry clear and definite, or be readily apparent that on those skilled in the art, it would certainly understand from obtaining by the utility model.

Claims (12)

1. a kind of display device, it is characterised in that including：

Liquid crystal display panel, with display surface；

Cover plate, overlappingly located at the display surface；

Back light unit, is oppositely disposed with the liquid crystal display panel；

Housing, covers the back light unit and the liquid crystal display panel, and at least a portion is fixed on the cover plate； And

Adhesives, along the liquid crystal display panel located at the cover plate,

The adhesives has first area and second area in the face of the opposite side in the face relative with the cover plate,

The second area is located at the inner side of the first area, and the inner side is the liquid crystal display panel side,

At least a portion of the housing adheres to the second area.

2. display device according to claim 1, it is characterised in that

The housing erects multiple side walls of setting with the bottom wall relative with the back light unit and along the periphery of the bottom wall, And the end edge portion of at least one side wall sticks to the second area of the adhesives.

3. display device according to claim 2, it is characterised in that

The housing has the first side wall of a pair of long sides and the second sidewall of a pair of short edges side,

The second area of the adhesives is located at the position along each long side of the liquid crystal display panel,

The end edge portion of the first side wall sticks to the second area of the adhesives.

4. display device according to claim 3, it is characterised in that

The second area of the adhesives is located at along the position of the short side of the liquid crystal display panel,

The end edge portion of the second sidewall of one side of the housing sticks to the second area of the adhesives.

5. the display device according to any one of claim 2 to 4, it is characterised in that

The end edge portion of at least one side wall inserts the second area of the adhesives, and the adhesives is between this Between end edge portion and the cover plate.

6. display device according to claim 5, it is characterised in that

The surface of the end edge portion of at least one side wall, which has been carried out, makes the end edge portion of at least one side wall Other parts of the surface than the housing shaggy surface treatment.

7. display device according to any one of claim 1 to 4, it is characterised in that

The display device also includes the peeling paper for covering the first area of the adhesives.

8. display device according to any one of claim 1 to 4, it is characterised in that

The display device also includes case lid,

The case lid covers the housing, and adheres to the cover plate by the second area of the adhesives.

9. a kind of adhesive sheet, it is characterised in that including：

Adhesives, forms the frame-shaped for surrounding display panel, and the adhesives includes first face Nian Jie with cover plate, and And the second face of the opposite side in first face has the second area of first area and the inner side positioned at the first area；

The first paper that can be peeled off, adheres to the second face of the adhesives, and covers the first area；And

The second paper that can be peeled off, adheres to the second face of the adhesives, and covers the second area.

10. adhesive sheet according to claim 9, it is characterised in that

The adhesive sheet also includes being formed at first paper and the slit on the border of second paper.

11. the adhesive sheet according to claim 9 or 10, it is characterised in that

Second paper is formed must be thicker than first paper.

12. the adhesive sheet according to claim 9 or 10, it is characterised in that

The adhesive sheet also includes the lining paper for adhering to the first face of the adhesives.