CN100464222C - Display - Google Patents

Abstract

A display allowing recycling of a flexible printed circuit board and a light source mounted thereon after disassembling of the flexible printed circuit board and the light source is obtained. In this display, the adhesive strength of a surface of a first double-faced adhesive tape bonded to the first flexible printed circuit board mounted with the light source is lower than the adhesive strength of another surface of the first double-faced adhesive tape bonded to the first display panel.

Description

Display device

Technical field

The invention relates to display device, particularly about possessing the display device of the flexible printing distributing board that light source is installed.

Background technology

Known in the past have a liquid crystal indicator (for example opening the 2005-173302 communique with reference to the spy of Japan) that possesses the flexible printing distributing board that light source is installed.Disclose at the above-mentioned open patent 2005-173302 of Japan communique: several LED (light source) that will be installed on the flexible printing distributing board respectively embed each recess of the mold frame (molded frame) (resinous framework) with several jogs, and the protuberance of the bonding mold frame of two sides adhesive tape by being disposed at each protuberance between each recess that is positioned at mold frame and the face that the LED of flexible printing distributing board is installed are with the fixing liquid crystal indicator of flexible printing distributing board and shaping frame.

And in the past, the above-mentioned spy of Japan open in the formation of 2005-173302 communique also known have comprise two display panels, and be used to supply with the LCD unit (unit) of light with being equipped with to the flexible printing distributing board of the light source of display panel by the display panel one of in bonding these two display panels of the anti-dazzling screen that constitutes by the two sides adhesive tape.Figure 22 is the stereographic map that shows the structure of the LCD unit comprise two known display panels, and Figure 23 is the dismounting stereographic map of known LCD unit shown in Figure 22.Figure 24 and Figure 25 are the structural maps that is used to illustrate the detailed construction of known LCD unit shown in Figure 22.At first with reference to Figure 22 to Figure 25, illustrate at the structure of the LCD unit that comprises two known display panels.

The LCD unit that comprises two known display panels is as Figure 22 and shown in Figure 23, comprises: subpanel (sub panel) 110, and with main panel (main panel) 120 with viewing area 120a also bigger than the viewing area 110a of subpanel 110.

The structure of subpanel 110 is as shown in figure 23, and two sheet glass substrate 111a and 111b clip mutually subtend and disposing of liquid crystal layer (not shown).And, on glass substrate 111a and surface glass substrate 111b opposition side, dispose Polarizer 112a, and on glass substrate 111b and surface glass substrate 111a opposition side, dispose Polarizer 112b.And the zone that disposes the regional interior dotted line of Polarizer 112a (112b) is the viewing area 110a that becomes subpanel 110, and the zone beyond the 110a of viewing area is to become non-display area 110b.And, in the presumptive area in the non-display area 110b of subpanel 110, on the surface of the glass substrate 111b of glass substrate 111a side, be formed with subpanel drive IC (IntegratedCircuit: integrated circuit) 113.And, be connected with subpanel FPC (Flexible Printed Circuit: the flexible printing distributing board) 114 at subpanel with drive IC 113.

And the structure of main panel 120 is as shown in figure 23, except viewing area 120a than the viewing area 110a of subpanel 110 also big, all the other are the same with the structure of above-mentioned subpanel 110.That is main panel 120 comprises: two sheet glass substrate 121a and 121b of clamping liquid crystal layer (not shown); Be disposed at the lip-deep Polarizer 122a and the 122b of each sheet of glass substrate 121a and 121b; Be formed at the lip-deep main panel drive IC 123 of glass substrate 121a; And be connected in main panel with the main panel of drive IC 123 with FPC 124.And the zone beyond the 120a of viewing area becomes non-display area 120b.

And, in known LCD unit, dispose subpanel 110 at the upper side of resinous framework 131, and dispose main panel 120 in the lower side of resinous framework 131.On concrete, the resinous framework 131 of LCD unit is rectangular frame shape.In the side of the long leg and the short leg of this OBL resinous framework 131, the snap-latch piece 131a of frame described later (bezel) (metallic framework) 143 usefulness protrudes in the outside respectively and forms.And, at the short leg of resinous framework 131, there is the snap-latch piece 131b of reinforcement plate 139 usefulness described later to protrude in the outside and forms.And at the linking portion of two long legs of a side's of resinous framework 131 short leg and resinous framework 131, the register pin 131c that has common FPC142 described later to use protrudes in subpanel 110 sides respectively and forms.And, be formed with notch part 131e in main panel 120 sides of a side's of resinous framework 131 short leg.

And the surface in main panel 120 sides of the notch part 131e of resinous framework 131 via the two sides adhesive tape 132 that the two sides has strong bond strength (bond strength), is bonded with the LED FPC134 that LED (light emitting diode) 133 is installed.And, light guide plate 135 is installed in the frame of resinous framework 131.And, on the surface of subpanel 110 sides of light guide plate 135, dispose two lens (lens sheet) 136 and a slice diffusion sheet 137 in regular turn by light guide plate 135 sides.And, on the surface of subpanel 110 sides of diffusion sheet 137, dispose anti-dazzling screen 138 with peristome 138a.The peristome 138a of this anti-dazzling screen 138 is zones of being located at the viewing area 110a of corresponding subpanel 110.And anti-dazzling screen 138 is bonded in resinous framework 131.

And, on the surface of subpanel 110 sides of anti-dazzling screen 138, dispose OBL reinforcement plate 139.Be formed with peristome 139a and 139b at this reinforcement plate 139.The peristome 139a of reinforcement plate 139 is zones of being located at the viewing area 110a of corresponding subpanel 110, and the peristome 139b of reinforcement plate 139 is located at the zone of corresponding subpanel with drive IC 113.And, be formed with the connecting hole 139c that engages with the snap-latch piece 131b of resinous framework 131 respectively in the zone of the snap-latch piece 131b of the resinous framework 131 of corresponding reinforcement plate 139.And, be formed with slotted hole 139d respectively in the zone of the register pin 131c of the resinous framework 131 of corresponding reinforcement plate 139.And each of the connecting hole 139c by reinforcement plate 139 engages with the snap-latch piece 131b of resinous framework 131, makes reinforcement plate 139 be fixed in resinous framework 131.And the register pin 131c of resinous framework 131 is that the slotted hole 139d via reinforcement plate 139 protrudes in subpanel 110 sides.And, be formed with the protrusion tab 139e of the location usefulness that protrudes in subpanel 110 sides as shown in figure 24 at reinforcement plate 139, surround three limits of subpanel 110 (glass substrate 111a).And, as shown in figure 23, be bonded with two sides adhesive tape 140 and 141 on the surface of subpanel 110 sides of reinforcement plate 139.

And on the surface of subpanel 110 sides of reinforcement plate 139, mat two sides adhesive tape 140 is bonded with common FPC 142.This common FPC 142 is that two sides at subpanel 110 and main panel 120 are by common use.And common FPC 142 has peristome 142a, and this peristome 142a is the zone of being located at corresponding subpanel 110.And, be formed with pilot hole 142b respectively in the zone of the register pin 131c of the corresponding resinous framework 131 of common FPC 142.And the common FPC 142 that is bonded in reinforcement plate 139 is by the pilot hole 142b of common FPC142 and the register pin 131c of resinous framework 131, to resinous framework 131 location.And, common FPC142 be equipped be inserted with LED with connector (connector) 142c of the terminal 134a of FPC 134 be inserted with the connector 142d of subpanel with the terminal 114a of FPC 114.And, the connector 142e beyond common FPC 142 also is equipped with connector 142c and 142d.And common FPC 142 is connected in main panel FPC 124.And subpanel 110 is the peristome 142a via common FPC142, is bonded in reinforcement plate 139 by two sides adhesive tape 141.And the subpanel 110 that is bonded in reinforcement plate 139 is the protrusion tab 139e by the location usefulness of reinforcement plate 139, makes the viewing area 110a of subpanel 110 be disposed at the peristome 139a of reinforcement plate 139 and locatees.

And, above subpanel 110, dispose OBL frame (metallic framework) 143.This frame 143 has peristome 143a, and this peristome 143a is the zone of being located at the viewing area 110a of corresponding subpanel 110.In view of the above, the viewing area 110a of subpanel 110 exposes from the peristome 143a of frame 143.And, be formed with connecting hole 143b respectively in the zone of the snap-latch piece 131a of the corresponding resinous framework 131 of frame 143.And each of the connecting hole 143b by frame 143 engages with the snap-latch piece 131a of resinous framework 131, and frame 143 is fixed in resinous framework 131.And, be formed with each the peristome 143c that exposes that is used to make the connector 142c to 142e that is installed on common FPC 142 at frame 143.

And as shown in figure 22, near the end face in the zone (non-display area 110b) the outer edge of near the bottom surface in the zone the outer edge of the peristome 143a of frame 143 and the viewing area 110a of subpanel 110 is glued together by two sides adhesive tape 144.

And, as Figure 23 and shown in Figure 25, in the frame of resinous framework 131 in, on the surface of main panel 120 sides of light guide plate 135, dispose two lens 151 and a slice diffusion sheet 152 in regular turn by light guide plate 135 sides.And, as shown in figure 23, on the surface of main panel 120 sides of diffusion sheet 152, dispose by having peristome 153a, and the two sides has the anti-dazzling screen 153 that the two sides adhesive tape of strong bond strength (bond strength) constitutes.And anti-dazzling screen 153 is to be bonded in resinous framework 131 to use FPC's 134 with the LED that LED 133 is installed.And, in the frame of resinous framework 131 in, main panel 120 is bonded in anti-dazzling screen 153.

But, at Figure 22 to the known LCD unit shown in Figure 25, because the LED FPC134 of LED133 is installed is to be bonded in main panel 120 by the anti-dazzling screen 153 that the two sides adhesive tape that is had strong bond strength (bond strength) by the two sides constitutes, and the two sides adhesive tape 132 that has strong bond strength by the two sides is bonded in resinous framework 131, so as shown in figure 26, under the situation by resinous framework 131 (with reference to Figure 23) dismounting main panel 120, big load can take place be applied in the rough sledding that the LED that LED 133 is installed uses FPC 134.In view of the above, exist to be installed on LED 133 breakages of LED, or use FPC 134 to produce unfavorable conditions such as broken strings at LED with FPC 134.Consequently, have when after the dismounting of LCD unit, assembling once again, be difficult to utilize again LED 133 and the LED problem of FPC 134.

Summary of the invention

The present invention is intended to solve the problem as above-mentioned, and it is a kind of after flexible printing distributing board that light source is installed and display panel dismounting that one object of the present invention is to provide, the display device of recycling flexible printing distributing board and light source.

To achieve these goals, the display device that first aspect present invention is related comprises:

First display panel;

Light source is used to supply with light to the first display panel;

The first flexible printing distributing board is equipped with light source; And

The first two sides adhesive tape is used for the first flexible printing distributing board is installed on first display panel side, wherein

The bond strength that the first two sides adhesive tape is bonded in the face of the first flexible printing distributing board is that to be bonded in the bond strength of face of first display panel side than the first two sides adhesive tape little.

In the related display device of described first aspect present invention, the bond strength specific adhesion of face that is bonded in the first flexible printing distributing board by use is in the first little two sides adhesive tape of the bond strength of the face of first display panel side, when peeling off from first display panel side by the bonding first flexible printing distributing board of the first two sides adhesive tape, because compare with the bond strength of the first two sides adhesive tape that is bonded in first display panel side, the bond strength of the first two sides adhesive tape that is bonded in the first flexible printing distributing board is less, so can be easy to peel off the first flexible printing distributing board from first display panel side.In view of the above because release adhesive in the first flexible printing distributing board of first display panel side need not be big strength, put on the first flexible printing distributing board so can suppress big load.So, make the situation of first flexible printing distributing board distortion because can suppress to result from big load to put on the first flexible printing distributing board, so can suppress to be installed on the light source breakage of the first flexible printing distributing board, or produce broken string at the first flexible printing distributing board.Consequently, because can be under the state that can utilize once more, peel off first flexible printing distributing board and the light source that is bonded in first display panel side by the first two sides adhesive tape, thus this recycling first flexible printing distributing board and light source can be used, and assemble display device once again.

In the related display device of described first aspect, preferably, the first two sides adhesive tape has when peeling off the first flexible printing distributing board by first display panel side, the bond strength that can peel off under the state that can utilize the first flexible printing distributing board and light source again.Adopt such structure, can be easy to utilize again first flexible printing distributing board and the light source.

In the related display device of described first aspect, preferably, also comprise:

Framework is used to be provided with the light source that is installed on the first flexible printing distributing board; And

Anti-dazzling screen, the two sides adhesive tape of being used by bonding first display panel and framework constitutes,

The first two sides adhesive tape is configured between the anti-dazzling screen and the first flexible printing distributing board, and the bond strength that the first two sides adhesive tape is bonded in the face of the first flexible printing distributing board is to be bonded in the face of the first two sides adhesive tape and to be bonded in the bond strength of face of first display panel little than anti-dazzling screen.Adopt such structure, when anti-dazzling screen is peeled off the first flexible printing distributing board that is adhered to by the first two sides adhesive tape, because compare with the bond strength of the anti-dazzling screen that is bonded in the first two sides adhesive tape and first display panel, the bond strength of the first two sides adhesive tape that is bonded in the first flexible printing distributing board is less, so can be easy to peel off the first flexible printing distributing board by anti-dazzling screen.Consequently, can be under the state that can utilize again, peel off by the first two sides adhesive tape and be bonded in first flexible printing distributing board and the light source on the anti-dazzling screen,, assemble display device once again so can use this recycling first flexible printing distributing board and light source.

In possessing the display device of said frame, preferably, also comprise:

The second two sides adhesive tape is used for the bonding framework and the first flexible printing distributing board,

The bond strength that the first two sides adhesive tape is bonded in the face of the first flexible printing distributing board is bonded in the face of framework than the second two sides adhesive tape and is bonded in the bond strength of face of the first flexible printing distributing board little.Adopt such structure, can be on one side by the big second two sides adhesive tape of bond strength to the bonding strongly first flexible printing distributing board of framework, on one side pass through the first little two sides adhesive tape of bond strength to first display panel with the bonding first flexible printing distributing board of weak bounding force.Consequently, can be easy to peel off the first flexible printing distributing board that is bonded in framework from first display panel strongly.

In possessing the display device of above-mentioned anti-dazzling screen, preferably, the first two sides adhesive tape is at least a portion zone of the corresponding first flexible printing distributing board and being disposed on the anti-dazzling screen.Adopt such structure, because the first two sides adhesive tape that is disposed at anti-dazzling screen is bonded at least a portion zone of the first flexible printing distributing board, so different with the situation of the All Ranges that is bonded with the first flexible printing distributing board at anti-dazzling screen with bond strength also bigger than the bond strength of the first two sides adhesive tape, can be easy to peel off the first flexible printing distributing board from first display panel side that is bonded with anti-dazzling screen.

In possessing the display device of above-mentioned anti-dazzling screen, preferably, the profile of anti-dazzling screen is that the plane sees it is the profile of corresponding first display panel and form square shape, and the first two sides adhesive tape is by near the end on predetermined one side of the anti-dazzling screen of the profile with this square shape and set.Adopt such structure, because near the end on predetermined one side of anti-dazzling screen and the first little two sides adhesive tape of bond strength that sets is bonded with the first flexible printing distributing board, so be bonded with the first flexible printing distributing board near can being suppressed at the end on predetermined one side of the big anti-dazzling screen of bond strength strongly.In view of the above, can be easier from peeling off the first flexible printing distributing board near the end of anti-dazzling screen.

In the related display device of described first aspect, preferably, also comprise:

Light guide plate, corresponding first display panel and form square shape, and will import first display panel from the light of the light source that is installed on the first flexible printing distributing board,

The first flexible printing distributing board that light source is installed is to be bonded in first display panel side by the first two sides adhesive tape, is disposed at the position of surface of light source to the side on predetermined one side of light guide plate.Adopt such structure, even in the structure that surface of light source is disposed the side on predetermined one side of light guide plate, also can be in function by the first little two sides adhesive tape of bond strength, can utilize again under the state of the first flexible printing distributing board and light source, it is peeled off from first display panel side.

In possessing the display device of above-mentioned light guide plate, preferably, light source comprises several light emitting diodes of the direction configuration of extending along predetermined one side of light guide plate, with the side of irradiates light to predetermined one side of light guide plate.So, even the direction of extending along predetermined one side of light guide plate is installed and under the situation of the first flexible printing distributing board of several light emitting diodes that dispose in use, also can be by the function of the first little two sides adhesive tape of bond strength, can be with the first flexible printing distributing board and several light emitting diodes the state utilizing again, peel off by first display panel side.

In possessing the display device of above-mentioned light guide plate, preferably, also comprise: second display panel, clip the light guide plate and the first display panel subtend and dispose,

Be installed on the light source of the first flexible printing distributing board and light guide plate by first display panel and the common use of second display panel.Adopt such structure, in the display device of first display panel that comprises a light source of common use and a light guide plate and second display panel, when dismantling first display panel by the function of the first little two sides adhesive tape of bond strength and the first flexible printing distributing board of light source be installed, recycling first flexible printing distributing board and the light source.

In the display device that possesses above-mentioned second display panel, first display panel is a main panel, and second display panel is the also little subpanel of comparable main panel.

In the display device that possesses above-mentioned second display panel, preferably, also comprise: the second flexible printing distributing board, be connected in first display panel and second display panel,

The first flexible printing distributing board that light source is installed is connected in the second flexible printing distributing board.Adopt such structure, even be connected under the state of the second flexible printing distributing board at the first flexible printing distributing board that light source is installed, peel off the situation of the first flexible printing distributing board that light source is installed by first display panel, also because can be by the function of the first little two sides adhesive tape of bond strength, be easy to peel off the first flexible printing distributing board by first display panel, thereby can be suppressed at when peeling off the first flexible printing distributing board, the second flexible printing distributing board is out of shape because of first the peeling off of flexible printing distributing board.In view of the above, the recycling first flexible printing distributing board, second flexible printing distributing board and the light source.

The display device that second aspect present invention is related comprises:

First framework has peristome;

First display panel has viewing area and non-display area, and relative with first framework to, and be that the gesture that the peristome by first framework exposes is configured with its viewing area; And

Buffer component, it is configured between the surface of first framework and first display panel, and is not bonded in the surface of first display panel.

In the related display device of second aspect present invention, as mentioned above, by between the surface of first framework and first display panel, disposing buffer component, be applied with by first frame side under the situation of external force, can absorb by the first frame side externally applied forces by buffer component.In view of the above, even be applied with external force, also, break so can suppress first display panel because of suppressing to be conveyed to first display panel from the external force of this first frame side by first frame side.And, by between the surface of first framework and first display panel, disposing buffer component, be not bonded in the surface of first display panel, be bonded at buffer component under the situation of first framework, when unloading first framework and buffer component by first display panel side, because do not produce the power that first framework is stretched to first display panel side, so can suppress first frame deformation.Consequently, dismantle afterwards (after unloading first framework by first display panel side) recycling first framework in display device.

In the related display device of described second aspect, preferably, buffer component is made up of the foaminess material.Adopt such structure, absorb by the first frame side externally applied forces with the buffer component that is easy to pass through to form by the foaminess material.

In the related display device of described second aspect, preferably, buffer component is disposed between the surface of first framework and first display panel, to surround the viewing area of first display panel.Adopt such structure, can suppress to send external force in the viewing area (non-display area) that surrounds first display panel from first frame side.

In the case, preferably, along near the mounted on surface buffer component of first display panel side the outer edge of the peristome of first framework.Adopt such structure, can be easy between the surface of first framework and first display panel, dispose buffer component, to surround the viewing area of first display panel.

In the related display device of described second aspect, preferably, first framework is metal, buffer component is configured between the surface of near the outer edge of peristome of first framework the surface and first display panel, and at least a portion in the outer edge of the peristome of metal first framework is formed with by drawing (Twisted り) recess that is processed to form.Adopt such structure, can be by drawing the transverse strength that the recess that is processed to form improves metal first framework.In view of the above, when unloading first framework, can suppress first frame deformation more by first display panel side.And, because can be by drawing the transverse strength that the recess that is processed to form improves first framework, so can suppress the first framework generation warpage.In view of the above, the warpage that can suppress to result from because of first framework makes the buffer component distortion, produces the surface and the discontiguous part of buffer component (gap) of first display panel.Consequently, can suppress ingress of dust and light leak from the surface and the buffer component gap of first display panel.

The display device that third aspect present invention is related comprises:

First display panel;

The flexible printing distributing board is electrically connected at first display panel;

Reinforcement is disposed at the rear side of flexible printing distributing board; And

The first two sides adhesive tape is disposed between flexible printing distributing board and the reinforcement, is used for bonding flexible printing distributing board and reinforcement, wherein

The bond strength that the first two sides adhesive tape is bonded in the face of flexible printing distributing board is bonded in reinforcement than the first two sides adhesive tape the bond strength of face is little.

The display device that third aspect present invention is related, as mentioned above, because be bonded in the first little two sides adhesive tape of bond strength of the face of reinforcement than the first two sides adhesive tape by the bond strength of using the first two sides adhesive tape to be bonded in the face of flexible printing distributing board, under the situation of peeling off reinforcement bonding flexible printing distributing board by the first two sides adhesive tape, compare with the bond strength of the first two sides adhesive tape and reinforcement, the bond strength of the first two sides adhesive tape and flexible printing distributing board is less, so can be easy to peel off the flexible printing distributing board from reinforcement.In view of the above, because peel off the strength that the flexible printing distributing board need not be big, put on the flexible printing distributing board so can suppress big power by reinforcement.Therefore, put on the flexible printing distributing board because can suppress to result from big power, and the flexible printing distributing board that produces distortion, so can suppress to be installed on the electronic component generation loose contact of flexible printing distributing board, or produce broken string at the distribution of flexible printing distributing board.And similarly, put on reinforcement because also can suppress big power, put on reinforcement so can suppress to result from big power, and the reinforcement that produces distortion.Consequently, because can under the state that can both utilize again, peel off,, assemble display device once again so can use this recycling flexible printing distributing board and reinforcement by two sides adhesive tape bonding flexible printing distributing board and reinforcement.And, because can be easy to peel off the flexible printing distributing board, when assembling, can be easy to revise the position that is bonded with the flexible printing distributing board, so can improve the operation when assembling by reinforcement.

In the related display device of the described third aspect, preferably, face side at the flexible printing distributing board is equipped with connector, the first two sides adhesive tape has under the situation of the splicing ear that removes and installs the connector that is connected in the flexible printing distributing board, reinforcement and the bonding of flexible printing distributing board do not break away from, and peeling off under the situation of flexible printing distributing board the bond strength that can under the state that the flexible printing distributing board can utilize again, peel off from reinforcement.Adopt such structure, even the connector that results from the flexible printing distributing board removes and installs splicing ear, strength puts under the situation of peeling off the bonding direction of flexible printing distributing board and reinforcement, also can suppress the bonding disengaging of flexible printing distributing board and reinforcement.Consequently, peeling off from reinforcement under the situation of flexible printing distributing board, even use the first two sides adhesive tape that under the state that can utilize the flexible printing distributing board again, to peel off, the bonding of flexible printing distributing board and reinforcement can not break away from yet, and can remove and install splicing ear by connector on the flexible printing distribution.

In the related display device of the described third aspect, preferably, the part of reinforcement in the viewing area of corresponding first display panel comprises first peristome, be equipped with the second two sides adhesive tape that bonding first display panel and reinforcement are used in the edge portion of first peristome of reinforcement, the bond strength that the first two sides adhesive tape is bonded in the face of flexible printing distributing board is bonded in the face of first display panel than the second two sides adhesive tape and is bonded in the bond strength of face of reinforcement little.Adopt such structure, the flexible printing distributing board is bonded in reinforcement on one side, can under the state that can utilize again, peeling off by the first little two sides adhesive tape of bond strength, can by bond strength big second two sides adhesive tape first display panel strongly be bonded in reinforcement on one side.

In the related display device of the described third aspect, preferably, the flexible printing distributing board comprises second peristome that exposes first display panel and be provided with, the zone beyond second peristome of the corresponding flexible printing distributing board of the first two sides adhesive tape and be configured in the face side of reinforcement.Adopt such structure, because be provided with second peristome at the flexible printing distributing board by mode with the viewing area of exposing first display panel, even situation in the mechanicalness strength degradation of flexible printing distributing board, also can be easy to peel off the flexible printing distributing board, be provided with the low flexible printing distributing board generation broken string of the second peristome mechanicalness intensity etc. so can be suppressed at from reinforcement.Consequently, even under the situation of peeling off the flexible printing distributing board that is provided with second peristome from reinforcement, also can utilize the flexible printing distributing board again.

Description of drawings

Fig. 1 sees stereographic map according to the related LCD unit of one embodiment of the invention by the subpanel side.

Fig. 2 sees stereographic map according to the related LCD unit of an embodiment shown in Figure 1 by the main panel side.

Fig. 3 is the dismounting stereographic map according to the related LCD unit of an embodiment shown in Figure 1.

Fig. 4 is the sectional view along the 100-100 line of Fig. 1.

Fig. 5 is the sectional view along the 200-200 line of Fig. 1.

Fig. 6 sees stereographic map according to the resinous framework of the related LCD unit of an embodiment shown in Figure 1 by the subpanel side.

Fig. 7 sees stereographic map according to the resinous framework of the related LCD unit of an embodiment shown in Figure 1 by the main panel side.

Fig. 8 is presented at the stereographic map that is bonded with the state of two sides adhesive tape according to the reinforcement plate of the related LCD unit of an embodiment shown in Figure 1.

Fig. 9 is to use in the mode chart according to the bonding little bonding two sides adhesive tape of the reinforcement plate of the related LCD unit of an embodiment shown in Figure 1 and common FPC.

Figure 10 shows by the stereographic map that unloads the state of lower frame according to the related LCD unit of an embodiment shown in Figure 1.

Figure 11 is the sectional view along the 300-300 line of Figure 10.

Figure 12 is the stereographic map that shows according to the frame of the related LCD unit of an embodiment shown in Figure 1.

Figure 13 is the stereographic map that shows according to the anti-dazzling screen of the related LCD unit of an embodiment shown in Figure 1.

Figure 14 is to use in the mode chart of using the bonding little bonding two sides adhesive tape of FPC and anti-dazzling screen according to the LED of the related LCD unit of an embodiment shown in Figure 1.

Figure 15 is the order stereographic map when being used to illustrate according to the related LCD unit dismounting of one embodiment of the invention.

Figure 16 is the order stereographic map when being used to illustrate according to the related LCD unit dismounting of one embodiment of the invention.

Figure 17 is the order stereographic map when being used to illustrate according to the related LCD unit dismounting of one embodiment of the invention.

Figure 18 is the sectional view along the 400-400 line of Figure 17.

Figure 19 is the order stereographic map when being used to illustrate according to the related LCD unit dismounting of one embodiment of the invention.

Figure 20 is the stereographic map of demonstration according to the two sides adhesive tape of the LCD unit of the first related variation of an embodiment shown in Figure 1.

Figure 21 is the stereographic map of demonstration according to the two sides adhesive tape of the LCD unit of the second related variation of an embodiment shown in Figure 1.

Figure 22 is the stereographic map that shows the structure of the LCD unit that comprises two known display panels.

Figure 23 is the dismounting stereographic map of known LCD unit shown in Figure 22.

Figure 24 shows the stereographic map that is unloaded the state of lower frame by known LCD unit shown in Figure 22.

Figure 25 is the sectional view along the 500-500 line of Figure 24.

Figure 26 is the stereographic map of demonstration by the state of the main panel of resinous framework dismounting known LCD unit shown in Figure 22.

The primary clustering symbol description

10,110 subpanels

10a, 20a, 110a, 120a viewing area

10b, 20b, 110b, 120b non-display area

11a, 11b, 21a, 21b, 111a, 111b, 121a, 121b glass substrate

12a, 12b, 22a, 22b, 112a, 112b, 122a, 122b Polarizer

13,113 subpanel drive IC

14,114 subpanels FPC 14a, 34a terminal

20,120 main panel 20b non-display areas

23,123 main panel drive IC

24,124 main panels FPC 30,46,50 thin slices

31,131 resinous framework 31a, 31b, 131a, 131b snap-latch piece

31c, 131c register pin 31e, 131e notch part

32,40,41,45,54,64,132,140,141 two sides adhesive tapes

33,133 LED, 34,134 LED FPC

35,135 light guide plate, 36,51,136,151 lens

37,52,137,152 diffusion sheets

38,53,138,153 anti-dazzling screens

38a, 39a, 42a, 43a, 43c, 138a, 139a, 139b, 142a, 143a, 143c, 153a peristome

39,139 reinforcement plate 39c, 43b, 139c, 143b connecting hole

39d, 139d slotted hole 39e, 139e protrusion tab

40a mylar 40b, the little bonding coat of 54b

Strong bonding coat 42, the 142 common FPC of 40c, 54c

42b, 142b pilot hole

42c to 42e, 142c to 142e connector

43,143 frame 43d recesses

44 cushions, 46 insulating trips

The 54a mylar

Embodiment

Below with reference to accompanying drawing example of the present invention is described.

At first, referring to figs. 1 through Figure 14, illustrate at the structure of the related LCD unit of present embodiment.

The related LCD unit of present embodiment is as shown in Figures 1 and 2, comprises subpanel (upper panel) 10 and main panel (downside panel) 20.

The structure of subpanel 10 as shown in Figure 3, two sheet glass substrate 11a and 11b clip mutually subtend and disposing of liquid crystal layer (not shown).And, on the surface of glass substrate 11a and opposition side glass substrate 11b, dispose Polarizer 12a, and on the surface of glass substrate 11b and opposition side glass substrate 11a, dispose Polarizer 12b.And in disposing the zone of Polarizer 12a (12b), become the viewing area 10a of subpanel 10 by the zone of dotted line, and 10a zone in addition in viewing area is to become non-display area 10b.And, in the presumptive area in the non-display area 10b of subpanel 10, be formed with subpanel drive IC 13 on the surface of glass substrate 11b side in leaning on of glass substrate 11a.And subpanel is connected with subpanel FPC (flexible printing distributing board) 14 with drive IC 13.

And the structure of main panel 20 of below that is disposed at Fig. 3 is the same with the structure of above-mentioned subpanel 10.That is two sheet glass substrate 21a and 21b clip the mutual subtend of liquid crystal layer (not shown) and dispose in main panel 20.And, on the surface of glass substrate 21a and opposition side glass substrate 21b, dispose Polarizer 22a, and on the surface of glass substrate 21b and opposition side glass substrate 21a, dispose Polarizer 22b.And in disposing the zone of Polarizer 22a (22b), become the viewing area 20a of main panel 20 by the zone of dotted line, and 20a zone in addition in viewing area becomes non-display area 20b.In addition, the viewing area 20a of main panel 20 is also bigger than the viewing area 10a of subpanel 10.And, in the presumptive area in the non-display area 20b of main panel 20, be formed with main panel drive IC 23 on the surface of glass substrate 21b side in leaning on of glass substrate 21a.And main panel is connected with main panel FPC24 with drive IC 23.

And, in the related LCD unit of present embodiment, above resinous framework 31, dispose subpanel 10, and below resinous framework 31, dispose main panel 20.In addition, resinous framework 31 is examples of [framework] involved in the present invention.Particularly, the resinous framework 31 of LCD unit is as Fig. 3, Figure 6 and Figure 7, is included in two long legs of the mutual subtend of short side direction and two short legs in the mutual subtend of long side direction, and forms rectangular frame shape.In the side of two long legs of this resinous framework 31, protrude in the outside respectively and respectively be formed with three snap-latch piece 31a that engage usefulness with frame described later (metallic framework) 43.And, protrude in the outside and be formed with a snap-latch piece 31a who engages usefulness with frame 43 in the side of a side's of resinous framework 31 short leg.And, protrude in the outside and form a snap-latch piece 31b who engages usefulness with reinforcement plate 39 described later in the side of a side's of resinous framework 31 short leg.And, protrude in the outside respectively and form the snap-latch piece 31b that engages usefulness with reinforcement plate 39 at the both ends of the side of the opposing party's of resinous framework 31 short leg.And, as Fig. 3 and shown in Figure 6, protrude in subpanel 10 sides respectively and form the register pin 31c that common FPC42 described later uses at the linking portion of two long legs of the opposing party's of resinous framework 31 short leg and resinous framework 31.And, be formed with notch part 31e in main panel 20 sides of the opposing party's of resinous framework 31 short leg.

And, as Fig. 3 and shown in Figure 7, on the surface of the notch part 31e of resinous framework 31 by main panel 20 sides, utilize the two sides to have the two sides adhesive tape (No.532 day east electrician's system) 32 of strong bond strength, be bonded with the LED FPC34 that LED (light emitting diode) 33 is installed.In addition, LED33 is an example of [light source] involved in the present invention, and LED FPC34 is an example of [the first flexible printing distributing board] involved in the present invention.And the two sides adhesive tape 32 of strong bond strength has the thickness of about 60 μ m, and has the structure that is coated with strong bonding coat on the two sides of mylar respectively.

Be that bond strength at the related two sides adhesive tape 32 of present embodiment illustrates herein.At state by the base material that is bonded in stainless steel, only this two sides adhesive tape 32 is being peeled off under the situation of 20mm on 80 ° the direction, need the peeling force of about 6.0N.Therefore, two sides adhesive tape 32 is bonding with the bond strength of about 6.0N with the base material of stainless steel.That is in the present embodiment, two sides described later adhesive tape 54 is bonded in LED and is bonded in the face of resinous framework 31 with the bond strength (about 2.5N) of little bonding coat 54b of FPC34 than two sides adhesive tape 32 and is bonded in LED little with the bond strength (about 6.0N) of the face of FPC34.

And, the light guide plate 35 that is used for the light of LED33 is imported subpanel 10 and main panel 20 is installed in the frame of resinous framework 31.That is LED33 and light guide plate 35 are by the common use of two sides of subpanel 10 and main panel 20.

And, as shown in Figure 3, on the surface of subpanel 10 sides of light guide plate 35, dispose two lens 36 and a slice diffusion sheet 37 in regular turn by light guide plate 35 sides.Lens 36 has the function of gathering from the light of light guide plate 35, and diffusion sheet 37 has the function of diffusion from the light of lens 36.And, on the surface of close subpanel 10 sides of diffusion sheet 37, dispose anti-dazzling screen 38 with peristome 38a.This anti-dazzling screen 38 has and is suppressed at the function that subpanel 10 sides are spilt by the zone beyond the 10a of viewing area from the light of LED33.That is the peristome 38a of anti-dazzling screen 38 is zones of being located at the viewing area 10a of corresponding subpanel 10.And the outer edge of anti-dazzling screen 38 is two long legs and two short legs that are bonded in resinous framework 31.In view of the above, be fixed with lens 36 and diffusion sheet 37 relative resinous frameworks 31 between the anti-dazzling screen 38 in light guide plate 35.

And, on the surface of close panel 10 sides of anti-dazzling screen 38, dispose the OBL reinforcement plate 39 that constitutes by stainless steel sheet metal.This reinforcement plate 39 has the function that strengthens common FPC42 described later.And, as Fig. 3 and shown in Figure 8, be formed with peristome 39a and 39b at reinforcement plate 39.The peristome 39a of reinforcement plate 39 is located in the zone of viewing area 10a of corresponding subpanel 10, and the peristome 39b of reinforcement plate 39 is located at corresponding subpanel with in the zone of drive IC 13.

And, be formed with the connecting hole 39c that engages with the snap-latch piece 31b of resinous framework 31 respectively in the zone of 3 snap-latch piece 31b of the corresponding resinous framework 31 of reinforcement plate 39.And, be formed with slotted hole 39d respectively in the zone of two register pin 31c of the corresponding resinous framework 31 of reinforcement plate 39.And, engage with 3 snap-latch piece 31b of resinous framework 31 respectively by among 3 connecting hole 39c of reinforcement plate 39 each, reinforcement plate 39 relative resinous frameworks 31 are fixed.And the register pin 31c of resinous framework 31 is that the slotted hole 39d via reinforcement plate 39 protrudes in subpanel 10 sides.

And, in the gesture of reinforcement plate 39, be formed with the protrusion tab 39e of some location usefulness that protrude in subpanel 10 sides with 3 limits of encirclement subpanel 10 (glass substrate 11a).Some protrusion tab 39e of this reinforcement plate 39 are disposed at the mode of the peristome 39a of reinforcement plate 39 with the viewing area 10a of subpanel 10, thereby have the function to reinforcement plate 39 locating pair panels 10.

And, be bonded with little bonding two sides adhesive tape (No.5690 day east electrician's system) 40 on the surface of close subpanel 10 sides of reinforcement plate 39.Particularly, little bonding two sides adhesive tape 40 is bonded in reinforcement plate 39, and surrounds the zone of the corresponding subpanel 10 of reinforcement plate 39.And strong bonding two sides adhesive tape 41 is bonded in by little bonding two sides adhesive tape 40 across predetermined interval, along the zone, outer edge of the peristome 39a of reinforcement plate 39.In addition, as shown in Figure 9, little bonding two sides adhesive tape 40 has: the structure that is coated with the strong bonding coat 40c of the little bonding coat 40b of the about 9 μ m of thickness and the about 9 μ m of thickness on two surfaces of the mylar 40a of the about 12 μ m of thickness respectively.And as shown in Figure 3, the strong bonding coat 40c (with reference to Fig. 9) of little bonding two sides adhesive tape 40 is bonded in the surface of close subpanel 10 sides of reinforcement plate 39.And little bonding coat 40b (with reference to Fig. 9) of little bonding two sides adhesive tape 40 is bonded in the surface of close main panel 20 sides of common FPC42.That is, as Fig. 3 and shown in Figure 11, utilize little bonding two sides adhesive tape 40 to be bonded with common FPC42 on the surface of close subpanel 10 sides of reinforcement plate 39.This common FPC42 is by the common use of both sides of subpanel 10 and main panel 20.In addition, common FPC is an example of [the second flexible printing distributing board] involved in the present invention.

Bond strength at the related two sides adhesive tape 40 of present embodiment describes herein.At state by the base material that is bonded in stainless steel, only little bonding coat 40b of this two sides adhesive tape 40 is peeled off under the situation of 20mm in 180 ° directions, need the peeling force of about 2.5N.Therefore, the base material of little bonding coat 40b of two sides adhesive tape 40 and stainless steel is bonding with the bond strength of about 2.5N.With respect to this, at state, only the strong bonding coat 40c of two sides adhesive tape 40 is peeled off under the situation of 20mm in 180 ° directions by the base material that is bonded in stainless steel, need the peeling force of about 8.0N.Therefore, the base material of the strong bonding coat 40c of two sides adhesive tape 40 and stainless steel is bonding with the bond strength of about 8.0N.That is in the present embodiment, the bond strength (about 2.5N) that two sides adhesive tape 40 is bonded in little bonding coat 40b of common FPC42 described later is that to be bonded in the bond strength (about 8.0N) of the strong bonding coat 40c of reinforcement plate 39 than two sides adhesive tape 40 little.

And in the present embodiment, little bonding coat 40b of two sides adhesive tape 40 has: at the LED that removes and installs the connector 42c that is connected in common FPC42 described later with the terminal 34a of FPC34 be connected under the situation of subpanel of connector 42d with the terminal 14a of FPC14, reinforcement plate 39 does not break away from the bonding of common FPC42, and peeling off under the situation of common FPC42 by reinforcement plate 39, having the bond strength (about 2.5N) that under the state that common FPC42 can utilize again, to peel off.

And in the present embodiment, be bonded with strong bonding two sides adhesive tape (No.532 day east electrician's system) 41 on the surface of close subpanel 10 sides of reinforcement plate 39.In addition, two sides adhesive tape 41 is examples of [the second two sides adhesive tape] involved in the present invention.And strong bonding two sides adhesive tape 41 and little bonding two sides adhesive tape 40 are bonded in along the zone, outer edge of the peristome 39a of reinforcement plate 39 across predetermined interval.

Moreover, describe at the bond strength of the related two sides adhesive tape 41 of present embodiment.At state by the base material that is bonded in stainless steel, only this two sides adhesive tape 41 is peeled off under the situation of 20mm in 180 ° directions, need the peeling force of about 6.0N.Therefore, two sides adhesive tape 41 is bonding with the bond strength of about 6.0N with the base material of stainless steel.That is in the present embodiment, the bond strength (about 2.5N) that two sides adhesive tape 40 is bonded in little bonding coat 40b of common FPC42 is bonded in the face of subpanel 10 than two sides adhesive tape 41 and is bonded in the bond strength (about 6.0N) of the face of reinforcement plate 39 little.

And common FPC42 has peristome 42a, and this peristome 42a is the zone of being located at corresponding subpanel 10.Therefore, reinforcement plate 39 is only undertaken bonding by the little bonding two sides adhesive tape 40 of the presumptive area beyond the zone that is positioned at corresponding subpanel 10 with common FPC42.And, as Fig. 3 and shown in Figure 10, be formed with pilot hole 42b respectively in the zone of two register pin 31c of the corresponding resinous framework 31 of common FPC42.And the common FPC42 that is bonded in reinforcement plate 39 is positioned with the relative resinous framework 31 of register pin 31c of resinous framework 31 by the pilot hole 42b of common FPC42.And, on common FPC42, be equipped with and be used to insert LED with the connector 42c of the terminal 34a of FPC34 and be used to insert the connector 42d of subpanel with the terminal 14a of FPC14.And, at common FPC42 several connectors 42e except connector 42c and 42d is installed also.And common FPC42 is connected in main panel FPC24.

And as shown in Figure 3, subpanel 10 is that the peristome 42a by common FPC42 is bonded in reinforcement plate 39.Particularly, the zone (non-display area 10b) that surrounds the viewing area 10a of subpanel 10 is bonded in the strong bonding two sides adhesive tape 41 that is positioned at along the zone, outer edge of the peristome 39a of reinforcement plate 39.And the subpanel 10 that is bonded in reinforcement plate 39 is that the protrusion tab 39e by the location usefulness of reinforcement plate 39 realizes locating, that is, the viewing area 10a of subpanel 10 is disposed at the peristome 39a of reinforcement plate 39.

And, above subpanel 10, dispose the OBL frame (metallic framework) 43 that the sheet metal by stainless steel constitutes.This frame 43 is as Fig. 3 and shown in Figure 12ly has peristome 43a, and this peristome 43a is located at the zone of the viewing area 10a of corresponding subpanel 10.In view of the above, the viewing area 10a of subpanel 10 is exposed by the peristome 43a of frame 43.And, respectively be formed with 3 connecting hole 43b respectively in two sides of the mutual subtend of short side direction of frame 43.And the side in two sides of the mutual subtend of long side direction of frame 43 is formed with a connecting hole 43b.And, fasten by each and 7 snap-latch piece 31a of resinous framework 31 among 7 connecting hole 43b of frame 43, thus 43 pairs of resinous frameworks 31 of fixed border.And, on frame 43, be formed with each the peristome 43c that exposes that is used for making the connector 42c to 42e that is installed on common FPC42.

And, as Fig. 3, Fig. 4 and shown in Figure 12, between subpanel 10 and frame 43, dispose cushion 44, and be not bonded in the surface of subpanel 10.This cushion 44 is to be made up of foaminess material (SCF-100, day eastern electrician's system).In addition, this cushion 44 is examples of [buffer component] involved in the present invention.And this cushion 44 is by strong bonding two sides adhesive tape (No.532, day eastern electrician's system) 45, surperficial bonded along near subpanel 10 sides the outer edge of the peristome 43a of frame 43.

And the Zone Full along the outer edge of the peristome 43a of frame 43 is formed with the recess 43d that is processed to form by drawing.The recess 43d of this frame 43 has the recess 43d identical thickness of part in addition with frame 43.And cushion 44 is close subpanel 10 side surfaces that are bonded in the recess 43d of frame 43.And, as shown in Figure 5, the cushion 44 on surface of close subpanel 10 sides that is bonded in the recess 43d of frame 43 be with the surface of the subpanel that is formed with subpanel 10 (glass substrate 11a) with the surface opposite side of drive IC 13, surround the viewing area 10a of subpanel 10 and contact.In addition, in Fig. 4 and Fig. 5, for the purpose of the simplification of accompanying drawing, represent lens 36 and diffusion sheets 37 with a plate sheet 30, and with a plate sheet 50 expression lens 51 described later and diffusion sheets 52.

And, as Fig. 3 and shown in Figure 12, in the lip-deep presumptive area of close subpanel 10 sides of frame 43, be equipped with and be used for insulating frame 43 and the insulating trip 46 that is installed on the electronic component (not shown) of common FPC42.

And, as shown in Figure 3, in the frame of resinous framework 31, on the surface of close main panel 20 sides of light guide plate 35, dispose two lens 51 and a slice diffusion sheet 52 in regular turn by light guide plate 35 sides.And, on the surface of close main panel 20 sides of diffusion sheet 52, dispose OBL anti-dazzling screen 53 with peristome 53a.This anti-dazzling screen 53 has the function that inhibition is spilt by the zone beyond the 20a of viewing area from the light of LED33 in main panel 20 sides.That is the peristome 53a of anti-dazzling screen 53 is zones of being located at the viewing area 20a of corresponding main panel 20.

Herein, in the present embodiment as Fig. 3 and shown in Figure 13, the close LED of the anti-dazzling screen 53 that constitutes along the two sides adhesive tape that is had strong bond strength by the two sides is bonded with little bonding two sides adhesive tape (No.5690, day eastern electrician's system) 54 with the end of FPC34 side.This two sides adhesive tape 54 has the length identical in fact with the size of the short side direction of anti-dazzling screen 53 and forms under the state that is bonded in anti-dazzling screen 53.This little bonding two sides adhesive tape 54 as shown in figure 14, has: the structure that is coated with the strong bonding coat 54c of the little bonding coat 54b of the about 9 μ m of thickness and the about 9 μ m of thickness on two surfaces of the mylar 54a of the about 12 μ m of thickness respectively.And as shown in Figure 3, the strong bonding coat 54c of little bonding two sides adhesive tape 54 is bonded in the surface of anti-dazzling screen 53, and little bonding coat 54b of little bonding two sides adhesive tape 54 is bonded in the surface of LED with FPC34.

Bond strength at the two sides adhesive tape 54 of present embodiment describes herein.At state by the base material that is bonded in stainless steel, only little bonding coat 54b of this two sides adhesive tape 54 is peeled off under the situation of 20mm in 180 ° directions, need the peeling force of about 2.5N.Therefore, the base material of little bonding coat 54b of two sides adhesive tape 54 and stainless steel is bonding with the bond strength of about 2.5N.With respect to this, at state, only the strong bonding coat 54c of two sides adhesive tape 54 is peeled off under the situation of 20mm in 180 ° directions by the base material that is bonded in stainless steel, need the peeling force of about 8.0N.Therefore, the base material of the strong bonding coat 54c of two sides adhesive tape 54 and stainless steel is bonding with the bond strength of about 8.0N.That is in the present embodiment, it is littler than the bond strength (about 8.0N) that two sides adhesive tape 54 is bonded in the strong bonding coat 54c of anti-dazzling screen 53 with the bond strength (about 2.5N) of little bonding coat 54b of FPC34 that two sides adhesive tape 54 is bonded in LED.

And the bond strength of little bonding coat 54b of the two sides adhesive tape 54 that present embodiment is related (about 2.5N) is to be peeled off LED by main panel 20 with under the situation of FPC34, can utilize the bond strength of peeling off under the state of LED with FPC34 and LED33 again.And the bond strength of little bonding coat 54b of two sides adhesive tape 54 (about 2.5N) is littler than the bond strength of the anti-dazzling screen 53 that the two sides adhesive tape that is had strong bond strength by the two sides constitutes.

And the outer edge of anti-dazzling screen 53 does not exist the zone of two sides adhesive tape 54 to be bonded in two long legs and two short legs of resinous framework 31.And as Fig. 3 and shown in Figure 11, the close LED of anti-dazzling screen 53 is to be bonded in LED with FPC34's by little bonding two sides adhesive tape 54 with the end of FPC34 side.In view of the above, be positioned at light guide plate 35 and anti-dazzling screen 53 between lens 51 and diffusion sheet 52 be fixed with respect to resinous framework 31.

And as shown in Figure 3, in the frame of resinous framework 31, the outer edge of the glass substrate 21a of main panel 20 is bonded in anti-dazzling screen 53.

Figure 15 to Figure 19 is the precedence diagram that is used to illustrate when the related LCD unit of one embodiment of the invention is dismantled.Then, with reference to Fig. 3, Fig. 4, Figure 10 and Figure 15 to Figure 19, the order during at the related LCD unit of dismounting present embodiment describes.

At first, when subpanel 10 sides of dismounting LCD unit, the connecting hole 43b that removes frame 43 shown in Figure 3 engages with the snap-latch piece 31a's of resinous framework 31.Be not adhered on the subpanel 10 because be bonded in the cushion 44 of frame 43 this moment as shown in Figure 4, so by removing the action that engages of above-mentioned frame 43 and resinous framework 31, frame 43 is unloaded from resinous framework 31.In view of the above, become state shown in Figure 10.

Secondly, unload common FPC42 by state shown in Figure 10.Particularly, as shown in figure 15,, become state shown in Figure 16 by peeling off common FPC42 by the little bonding two sides adhesive tape 40 of bonding common FPC42 and reinforcement plate 39.

And, when main panel 20 sides of dismounting LCD unit, at first as shown in figure 17, anti-dazzling screen 53 from resinous framework 31 release adhesives in resinous framework 31 (with reference to Fig. 3) and main panel 20.And, as shown in figure 18, use the FPC34 release adhesive in little bonding two sides adhesive tape 54 and the anti-dazzling screen 53 (main panel 20) of LED with FPC34 from LED, become state shown in Figure 19.

In the present embodiment, as mentioned above, by use be bonded in LED with bond strength (about 2.5N) specific adhesion of little bonding coat 54b of FPC34 in the little two sides adhesive tape 54 of bond strength (about 8.0N) of the strong bonding coat 54c of main panel 20 sides, peeling off the LEDs bonding from main panel 20 sides with under the situation of FPC34 by two sides adhesive tape 54, with the bond strength of the strong bonding coat 54c of the two sides adhesive tape 54 that is bonded in main panel 20 sides relatively, because it is less with the bond strength of little bonding coat 54b of the two sides adhesive tape 54 of FPC34 to be bonded in LED, so can be easy to peel off LED FPC34 from main panel 20 sides.In view of the above, because the power release adhesive that can use about 2.5N in the LED FPC34 of main panel 20 sides, puts on LED FPC34 so can suppress the above load of about 2.5N.Therefore, put on the LED that LED produces with FPC34 and be out of shape with FPC34 because can suppress to result from the above load of about 2.5N, thus can suppress to be installed on the LED33 breakage of LED with FPC34, or produce with FPC34 at LED and to break.Consequently, because can peel off utilizing again under main panel 20 (anti-dazzling screen 53) the side state of LED with FPC34 and LED33 bonding,, assemble the LCD unit again so can use this recycling LED with FPC34 and LED33 by two sides adhesive tape 54.

And, in the present embodiment, be bonded in the face of resinous framework 31 with the bond strength (about 2.5N) of little bonding coat 54b of FPC34 than two sides adhesive tape 32 and be bonded in LED little by making two sides adhesive tape 54 be bonded in LED with the bond strength (about 6.0N) of the face of FPC34, can be on one side by the big 32 pairs of resinous frameworks 31 of two sides adhesive tape of bond strength with the bonding strongly LED FPC34 of the bounding force of about 6.0N, one side 54 pairs of main panels 20 of two sides adhesive tape by having the little little bonding coat 54b of bond strength with the bonding LED FPC34 of the weak bounding force of about 2.5N.Consequently, can be easy to from main panel 20 (anti-dazzling screen 53) release adhesive in the LED FPC34 of two sides adhesive tape 54 and two sides adhesive tape 32.

And, in the present embodiment, because by setting two sides adhesive tape 54 with the end of FPC34 side along the close LED of OBL anti-dazzling screen 53, on the end two sides adhesive tape 54 that set, that have bond strength little little bonding coat 54b of LED with the FPC34 side of anti-dazzling screen 53, be bonded with LED FPC34, be bonded with LED FPC34 strongly so can be suppressed at the end of the big anti-dazzling screen of bond strength 53.The end side from anti-dazzling screen 53 that can be more prone in view of the above, is peeled off LED FPC34.

And, in the present embodiment, as mentioned above, by between the surface of frame 43 and subpanel 10, disposing the cushion of forming by the foaminess material 44, be applied with under the situation of external force by frame 43 sides, can absorbing by frame 43 side externally applied forces by cushion 44.In view of the above, even be applied with external force, also, break so can suppress subpanel 10 because can suppress to be conveyed to subpanel 10 from the external force of these frame 43 sides by frame 43 sides.

And, in the present embodiment, because by configuration cushion 44 between the surface of frame 43 and subpanel 10, and described cushion 44 is not bonded in the surface of subpanel 10, from subpanel 10 side dumping lower frames 43 and cushion 44 time, because do not produce the power that frame 43 is stretched to subpanel 10 laybacks is not fallen, so can suppress frame 43 distortion.Consequently, (from subpanel 10 side dumping lower frames 43 backs) can utilize frame 43 again in dismounting back, LCD unit.

And, in the present embodiment, by configuration cushion 44 between the surface of frame 43 and subpanel 10,, can suppress reception and registration in the zone (non-display area 10b) of the viewing area 10a that surrounds subpanel 10 from the external force of frame 43 sides to surround the viewing area 10a of subpanel 10.In this case,, can be easy to configuration cushion 44 between the surface of frame 43 and subpanel 10, surround the viewing area 10a of subpanel 10 by along near the surperficial bonding cushion 44 the outer edge of the peristome 43a of frame 43.

And, in the present embodiment, form by drawing the recess 43d that is processed to form by outer edge along the peristome 43a of frame 43, can be by by drawing the transverse strength that the recess 43d that is processed to form improves frame 43.In view of the above, from subpanel 10 side dumping lower frames 43 and cushion 44 time, can suppress frame 43 distortion more.And, because by improving the transverse strength of frame 43 by drawing the recess that is processed to form, so can suppress frame 43 warpage takes place.In view of the above, can suppress to result from the distortion that frame 43 warpages are produced cushion 44, produce the surface and the cushion 44 discontiguous parts (gap) of subpanel 10.Consequently, can suppress intrusion or light leak from the dust in the gap of the surface of subpanel 10 and cushion 44.

And, in the present embodiment, for forming the recess 43d that is processed to form by drawing of frame 43 by Zone Full along the outer edge of peristome 43a, the situation that is formed with recess 43d with the part in the outer edge of the peristome 43a of frame 43 only relatively, can improve the transverse strength of frame 43 more, so can more suppress the distortion and the warpage of frame 43.

And, in the present embodiment, because be installed on the resinous framework 31 that is provided with light guide plate 35 by being formed with by the frame 43 that draws the recess 43d that is processed to form, by the transverse strength of frame 43 being improved, so can suppress frame 43 and resinous framework 31 distortion by drawing the recess 43d that is processed to form.In view of the above, because can suppress to be arranged at light guide plate 35 distortion of resinous framework 31, so can suppress the bad generation of demonstration that the distortion because of light guide plate 35 causes.At this moment, can suppress to be arranged at the light guide plate 35 and diffusion sheet 37 distortion of resinous framework 31.In view of the above, the diffusion sheet 37 Contact Pair panels 10 that can suppress to be out of shape show the apperance of newton's ring-type (striated).

And, in the present embodiment, because by constituting as above-mentioned, even be equipped with subpanel with in the LCD unit of drive IC 13 at the non-display area 10b of subpanel 10, also can suppress to be conveyed to the subpanel of subpanel 10 with drive IC 13, so can suppress subpanel drive IC 13 breakages by cushion 44 from the external force of frame 43 sides.In this case, because by setting subpanel at non-display area 10b with drive IC 13 with the surface of the surface opposite side of close cushion 44 sides of subpanel 10 (glass substrate 11a), frame 43 and the subpanel that is equipped with subpanel 10 can be made as the aggregate thickness distance so of thickness of the glass substrate 11a of the thickness of corresponding cushion 44 and subpanel 10 with the distance between the zone of drive IC 13, be conveyed to the subpanel that is equipped with subpanel 10 zone from the external force of frame 43 sides with drive IC 13 so can more press from both sides inhibition.In view of the above, can suppress subpanel drive IC 13 breakages more.

And, in the present embodiment, as mentioned above, because be bonded in the little two sides adhesive tape 40 of bond strength (about 8.0N) of the strong bonding coat 40c of reinforcement plate 39 than two sides adhesive tape 40 by the bond strength (about 2.5N) of using two sides adhesive tape 40 to be bonded in little bonding coat 40b of common FPC42, be bonded under the situation of the common FPC42 on the reinforcement plate 39 peeling off by two sides adhesive tape 40, compare with the strong bonding coat 40c of two sides adhesive tape 40 and the bond strength of reinforcement plate 39, little bonding coat 40b of two sides adhesive tape 40 and the bond strength of common FPC42 are little, so can be easy to peel off common FPC42 from reinforcement plate 39.In view of the above, because can peel off common FPC42 by reinforcement plate 39, put on common FPC42 so can suppress the above power of about 2.5N with the power of about 2.5N.Therefore, the distortion that common FPC42 is produced because can suppress to result from the above power of about 2.5N to put on common FPC42, come in contact badly so can be suppressed at the connector 42c to 42e that is installed on common FPC42, or produce broken string at the distribution of common FPC42.And, put on reinforcement plate 39 because also can suppress the above power of about 2.5N, the distortion that reinforcement plate 39 is produced so can suppress to result from power more than about 2.5N to put on reinforcement plate 39.Consequently, because can under the state that can utilize common FPC42 bonding and reinforcement plate 39 mutually again, peel off,, assemble the LCD unit again so can use this recycling common FPC42 and reinforcement plate 39 by two sides adhesive tape 40.

And, in the present embodiment, because can be easy to peel off common FPC42 from reinforcement plate 39, thus when assembling, can be easy to revise the position that is bonded with common FPC42, thereby can improve the operation when assembling.

And, in the present embodiment, at the LED that removes and installs the connector 42c that is connected in common FPC42 with the terminal 34a of FPC34 or be connected under the situation of subpanel of connector 42d with the terminal 14a of FPC14, reinforcement plate 39 does not break away from the bonding of common FPC42, and peeling off from reinforcement plate 39 under the situation of common FPC42, by two sides adhesive tape 40 being set as the bond strength (about 2.5N) that under the state that common FPC42 can utilize again, to peel off, even remove and install LED the terminal 34a of FPC34 and the terminal 14a of common FPC42 at connector 42c that results from common FPC42 and 42d, strength puts under the situation of the bonding direction of peeling off common FPC42 and reinforcement plate 39, also can suppress the bonding disengaging of common FPC42 and reinforcement plate 39.Consequently, peeling off from reinforcement plate 39 under the situation of common FPC42, even use and to utilize the two sides adhesive tape of peeling off under the state of common FPC42 40 again, the bonding of common FPC42 and reinforcement plate 39 can not break away from yet, and can remove and install LED the terminal 34a of FPC34 and the terminal 14a of common FPC42 at connector 42c and the 42d of common FPC42.

And, in the present embodiment, set the two sides adhesive tape 41 of bonding subpanel 10 and reinforcement plate 39 usefulness by edge portion at the peristome 39a of reinforcement plate 39, and be bonded in the face of subpanel 10 than two sides adhesive tape 41 and be bonded in the bond strength (about 6.0N) of the face of reinforcement plate 39 little by the bond strength (about 2.5N) that makes two sides adhesive tape 40 be bonded in little bonding coat 40b of common FPC42, with on one side by having the two sides adhesive tape 40 of the little little bonding coat 40b of bond strength, can under the state that can utilize again, peel off and common FPC42 is bonded in reinforcement plate 39, by bond strength big two sides adhesive tape 41 strongly subpanel 10 be bonded in reinforcement plate 39 on one side.

And, in the present embodiment, because by be provided with the peristome 42a that the viewing area 10a that exposes subpanel 10 establishes at common FPC42, and make the zone beyond the peristome 42a of two sides adhesive tape 40 corresponding common FPC42 and be disposed at the face side of reinforcement plate 39, even situation in the mechanicalness strength degradation of common FPC42, also can be easy to peel off common FPC42, produce broken string etc. so can be suppressed at the common FPC42 of the mechanicalness strength degradation that is provided with peristome 42a by reinforcement plate 39.Consequently, even peeling off from reinforcement plate 39 under the situation of the common FPC42 that is provided with peristome 42a, also can utilize common FPC42 again.

And, in the present embodiment, even set the main panel drive IC 23 that is electrically connected with main panel usefulness FPC24 at the non-display area 20b of main panel 20, because by using the related two sides adhesive tape 40 of this enforcement, when reinforcement plate 39 is peeled off common FPC42, can be suppressed at the main panel that connects common FPC42 and main panel 20 and produce broken string, so be equipped with the main panel 20 of main panel with drive IC 23 to utilize again with FPC24.

In addition, this disclosed embodiment should think that the explanation of all point just illustrates rather than limits the invention.Scope of the present invention be not by the explanation of the foregoing description define but scope by claim define and, include with the meaning of the scope equalization of claim of the present invention and all changes in the scope.

Though for example be to have illustrated that the present invention is applicable to the example of LCD unit (liquid crystal indicator) in the above-described embodiments, the present invention is not limited to this, also can be applicable to LCD unit display device in addition.Display device beyond the LCD unit for example has organic EL display etc.

And, though be to have illustrated that bonding LED is to use the two sides adhesive tape 54 (No.5690 with about 2.5N bond strength with little bonding coat 54b of FPC34 in the above-described embodiments, day eastern electrician's system) example, but the present invention is not limited to this, peeling off LED by main panel 20 with under the situation of FPC34, if can be the bond strength of peeling off under the recycling state with FPC34 and LED33, then use the two sides adhesive tape that comprises little bonding coat also passable with above-mentioned about 2.5N bond strength in addition at LED.

And, in the above-described embodiments as shown in figure 13, though be to show to spread all over the LED that extends anti-dazzling screen 53 total length with the part of the short side direction of the end of FPC34 side, bonding example with two sides adhesive tape 54 of the length identical in fact with the width of the short side direction of anti-dazzling screen 53, but the present invention is not limited to this, first variation of embodiments of the invention as shown in figure 20, partly along the part of the LED that extends anti-dazzling screen 53 with the short side direction of the end of FPC34 side, bonding two sides adhesive tape 64 with length also littler than the width of the short side direction of anti-dazzling screen 53 is also passable.

And, in the above-described embodiments as shown in figure 13, though be to show to spread all over the LED that extends anti-dazzling screen 53 total length with the part of the short side direction of the end of FPC34 side, the example of bonding a slice two sides adhesive tape 54, but the present invention is not limited to this, second variation of embodiments of the invention as shown in figure 21 is in the part of the LED that extends anti-dazzling screen 53 with the short side direction of the end of FPC34 side, also passable across predetermined bonding several two sides adhesive tapes 74 in compartment ground.

And though be to show that the present invention is applicable to the example of the display device that comprises two display panels (subpanel and main panel) in the above-described embodiments, the present invention is not limited to this, also can be applicable to the display device that only comprises a slice display panel.

And, though be to show the two sides adhesive tape (No.532 that uses the two sides to have strong bond strength in the above-described embodiments, day eastern electrician's system) 32 binder resin frameworks 31 and the example of LED with FPC34, but the present invention is not limited to this, also can be installed on resinous framework 31 regularly with being installed on the LED33 of LED with FPC34.

And though be to show to be installed on the example of LED with the light source use LED (light emitting diode) of FPC in the above-described embodiments, the present invention is not limited to this, uses LED light source in addition also can.

And though in the above-described embodiments in the subpanel side, dispose cushion between frame and subpanel, the present invention is not limited to this, sets frame in the main panel side, and the configuration cushion also can between this frame and main panel.

And, though the Zone Full along the outer edge of the peristome of frame forms by drawing the recess that is processed to form in the above-described embodiments, but the present invention is not limited to this, and only the part in the outer edge of the peristome of frame forms also passable by drawing the recess that is processed to form.

And though buffer component of the present invention in the above-described embodiments is to use the cushion of being made up of the foaminess material, the present invention is not limited to this, uses the cushion of being made up of the material beyond the foaminess material also passable.

And though form the subpanel drive IC in the above-described embodiments on the glass substrate of subpanel, the present invention is not limited to this, and subpanel sets also passable individually with drive IC and subpanel.

And, though be the two sides adhesive tape 40 (No.5690 that show to use little bonding coat 40b of being bonded in common FPC42 to have the bond strength of about 2.5N in the above-described embodiments, day eastern electrician's system) example, but the present invention is not limited to this, if at the LED that removes and installs the connector 42c that is connected in common FPC42 with the terminal 34a of FPC34 or be connected under the situation of subpanel of connector 42d with the terminal 14a of FPC14, reinforcement plate 39 does not break away from the bonding of common FPC42, and peeling off by reinforcement plate 39 under the situation of common FPC42, as long as the bond strength of peeling off under the state that common FPC42 can utilize again then uses the two sides adhesive tape that comprises the little bonding coat with above-mentioned about 2.5N bond strength in addition also passable.

And, though be to show in the above-described embodiments by setting strong bonding two sides adhesive tape 41 in zone along the outer edge of the peristome 39a of reinforcement plate 39, the example of bonding reinforcement plate 39 and subpanel 10, but the present invention is not limited to this, do not use two sides adhesive tape 41, it is also passable that the protrusion tab 39e card by reinforcement plate 39 ends subpanel 10.

And, though be that the non-display area that is presented at the non-display area of main panel and subpanel forms main panel respectively with drive IC and the subpanel example with drive IC in the above-described embodiments, but the present invention is not limited to this, main panel is formed on the common FPC also passable with drive IC with drive IC and subpanel, and the zone that is formed at beyond the common FPC is also passable.

And, though be the example that is presented at the bonding common FPC42 of reinforcement plate that the sheet metal by stainless steel constitutes in the above-described embodiments, but the present invention is not limited to this, use the reinforcement plate that forms by the metal beyond the stainless steel also can, and use the reinforcement plate of for example resin material formation beyond the metal also can.

Claims (12)

1. display device comprises:

First display panel;

Light source is used to supply with light to this first display panel;

The flexible printing distributing board is equipped with this light source; And

The first two sides adhesive tape is used for this flexible printing distributing board is installed on this first display panel side, it is characterized in that,

The bond strength that this first two sides adhesive tape is bonded in the face of this flexible printing distributing board is bonded in this first display panel side than this first two sides adhesive tape the bond strength of face is little.

2. display device according to claim 1, it is characterized in that, this first two sides adhesive tape has when this first display panel side is peeled off this flexible printing distributing board, can utilize the bond strength of peeling off under the state of this flexible printing distributing board and this light source again.

3. display device according to claim 1 is characterized in that, also comprises:

Framework is used to be provided with the light source that is installed on this flexible printing distributing board; And

Anti-dazzling screen, the two sides adhesive tape of being used by bonding this first display panel and this framework constitutes,

This first two sides adhesive tape is disposed between this anti-dazzling screen and this flexible printing distributing board,

The bond strength that this first two sides adhesive tape is bonded in the face of this flexible printing distributing board is bonded in the face of this first two sides adhesive tape than this anti-dazzling screen and is bonded in the bond strength of face of this first display panel little.

4. display device according to claim 3 is characterized in that, also comprises:

The second two sides adhesive tape is used for bonding this framework and this flexible printing distributing board,

The bond strength that this first two sides adhesive tape is bonded in the face of this flexible printing distributing board is bonded in the face of this framework than this second two sides adhesive tape and is bonded in the bond strength of face of this flexible printing distributing board little.

5. display device according to claim 3 is characterized in that, the profile plane earth of this anti-dazzling screen sees to be to profile that should first display panel and the square shape that forms,

This first two sides adhesive tape is near the end on predetermined one side of the anti-dazzling screen of the profile with this square shape and set.

6. display device according to claim 1 is characterized in that, also comprises: light guide plate, to should first display panel and form square shape, and will import this first display panel from the light of this light source that is installed on this flexible printing distributing board,

The flexible printing distributing board that this light source is installed is by being bonded in this first display panel side by this first two sides adhesive tape, to be disposed at the position of this surface of light source to the side on predetermined one side of this light guide plate.

7. display device according to claim 6 is characterized in that, this light source comprises several light emitting diodes of the direction configuration of extending along predetermined one side of this light guide plate, with the side of irradiates light to predetermined one side of this light guide plate.

8. display device according to claim 6 is characterized in that, also comprises: second display panel, and clip this light guide plate and this first display panel subtend and dispose,

Be installed on this light source of this flexible printing distributing board and this light guide plate by this first display panel and the common use of this second display panel.

9. display device comprises:

First display panel;

The flexible printing distributing board is electrically connected at this first display panel;

Reinforcement is disposed at the rear side of this flexible printing distributing board; And

The first two sides adhesive tape is disposed between this flexible printing distributing board and this reinforcement, is used for bonding this flexible printing distributing board and this reinforcement, it is characterized in that,

The bond strength that this first two sides adhesive tape is bonded in the face of this flexible printing distributing board is bonded in this reinforcement than this first two sides adhesive tape the bond strength of face is little.

10. display device according to claim 9 is characterized in that, in the face side of this flexible printing distributing board connector is installed,

This first two sides adhesive tape has when removal is connected in the splicing ear of connector of this flexible printing distributing board, this reinforcement and the bonding of this flexible printing distributing board do not break away from, and when peeling off this flexible printing distributing board by this reinforcement, the bond strength that can under the state that this flexible printing distributing board can be utilized again, peel off.

11. display device according to claim 9 is characterized in that, this reinforcement comprises first peristome in the part to viewing area that should first display panel,

Be equipped with the second two sides adhesive tape that bonding this first display panel and this reinforcement are used in the edge portion of first peristome of this reinforcement,

The bond strength that this first two sides adhesive tape is bonded in the face of this flexible printing distributing board is bonded in the face of this first display panel than this second two sides adhesive tape and is bonded in the bond strength of face of this reinforcement little.

12. display device according to claim 9 is characterized in that, this flexible printing distributing board comprises second peristome that exposes this first display panel and be provided with,

Zone beyond this second peristome of corresponding this flexible printing distributing board of this first two sides adhesive tape and be disposed at the surface of this reinforcement.

Images