CN101779074A - Light source device and liquid crystal display device - Google Patents
Light source device and liquid crystal display device Download PDFInfo
- Publication number
- CN101779074A CN101779074A CN200880103040A CN200880103040A CN101779074A CN 101779074 A CN101779074 A CN 101779074A CN 200880103040 A CN200880103040 A CN 200880103040A CN 200880103040 A CN200880103040 A CN 200880103040A CN 101779074 A CN101779074 A CN 101779074A
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- Prior art keywords
- light
- housing
- lgp
- light source
- supply apparatus
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Links
- 239000004973 liquid crystal related substance Substances 0.000 title claims abstract description 29
- 230000003287 optical effect Effects 0.000 claims abstract description 37
- 239000000758 substrate Substances 0.000 claims description 42
- 238000007639 printing Methods 0.000 claims description 39
- 238000005452 bending Methods 0.000 claims description 11
- 230000004308 accommodation Effects 0.000 claims description 10
- 239000011241 protective layer Substances 0.000 claims description 2
- 238000005516 engineering process Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- RKTYLMNFRDHKIL-UHFFFAOYSA-N copper;5,10,15,20-tetraphenylporphyrin-22,24-diide Chemical compound [Cu+2].C1=CC(C(=C2C=CC([N-]2)=C(C=2C=CC=CC=2)C=2C=CC(N=2)=C(C=2C=CC=CC=2)C2=CC=C3[N-]2)C=2C=CC=CC=2)=NC1=C3C1=CC=CC=C1 RKTYLMNFRDHKIL-UHFFFAOYSA-N 0.000 description 1
- 238000009795 derivation Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
Images
Classifications
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K1/00—Printed circuits
- H05K1/02—Details
- H05K1/0277—Bendability or stretchability details
- H05K1/028—Bending or folding regions of flexible printed circuits
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
- G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
- G02B6/0081—Mechanical or electrical aspects of the light guide and light source in the lighting device peculiar to the adaptation to planar light guides, e.g. concerning packaging
- G02B6/0083—Details of electrical connections of light sources to drivers, circuit boards, or the like
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1345—Conductors connecting electrodes to cell terminals
- G02F1/13452—Conductors connecting driver circuitry and terminals of panels
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
- G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
- G02B6/0033—Means for improving the coupling-out of light from the light guide
- G02B6/005—Means for improving the coupling-out of light from the light guide provided by one optical element, or plurality thereof, placed on the light output side of the light guide
- G02B6/0055—Reflecting element, sheet or layer
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/1336—Illuminating devices
- G02F1/133615—Edge-illuminating devices, i.e. illuminating from the side
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F2201/00—Constructional arrangements not provided for in groups G02F1/00 - G02F7/00
- G02F2201/50—Protective arrangements
- G02F2201/503—Arrangements improving the resistance to shock
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K1/00—Printed circuits
- H05K1/02—Details
- H05K1/11—Printed elements for providing electric connections to or between printed circuits
- H05K1/117—Pads along the edge of rigid circuit boards, e.g. for pluggable connectors
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K1/00—Printed circuits
- H05K1/02—Details
- H05K1/14—Structural association of two or more printed circuits
- H05K1/147—Structural association of two or more printed circuits at least one of the printed circuits being bent or folded, e.g. by using a flexible printed circuit
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K1/00—Printed circuits
- H05K1/18—Printed circuits structurally associated with non-printed electric components
- H05K1/189—Printed circuits structurally associated with non-printed electric components characterised by the use of a flexible or folded printed circuit
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K2201/00—Indexing scheme relating to printed circuits covered by H05K1/00
- H05K2201/10—Details of components or other objects attached to or integrated in a printed circuit board
- H05K2201/10007—Types of components
- H05K2201/10106—Light emitting diode [LED]
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K2201/00—Indexing scheme relating to printed circuits covered by H05K1/00
- H05K2201/10—Details of components or other objects attached to or integrated in a printed circuit board
- H05K2201/10007—Types of components
- H05K2201/10189—Non-printed connector
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K2201/00—Indexing scheme relating to printed circuits covered by H05K1/00
- H05K2201/20—Details of printed circuits not provided for in H05K2201/01 - H05K2201/10
- H05K2201/2027—Guiding means, e.g. for guiding flexible circuits
Landscapes
- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Mathematical Physics (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Planar Illumination Modules (AREA)
- Liquid Crystal (AREA)
- Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)
Abstract
Provided is a light source device (14) wherein a light guide plate (56), a light source (42) and at least one optical sheet (48) are stored in an optical element storing space (38) formed by a housing (26), and light inputted to the light guide plate (56) from the light source (42) is diffused in the light guide plate (56), and then planarly outputted from a light outputting surface (57) of the light guide plate (56). A liquid crystal display device (10) is also provided. The light source device or the like includes a wiring lead-out section (46) formed on the housing (26); a flexible printed board (24) introduced to the external from the optical element storing space (38) through the wiring lead-out section (46), by including an electric circuit connected to the light source (42); and a wiring protection section (60), which is integrally formed with the optical sheet (48) and is arranged between the housing (26) and the flexible printed board (24) at the wiring lead-out section (46). Thus, the circuit connecting section is not directly brought into contact with the housing and edges of the boards constituting the housing. Therefore, the flexible printed board is not broken while the light source device is being manufactured or used.
Description
Technical field
For example the present invention relates to the light supply apparatus that utilizes as the backlight apparatus that disposes at liquid crystal panel behind and with the liquid crystal indicator of this light supply apparatus and liquid crystal templated combination.
Background technology
Disclose liquid crystal indicator in the patent documentation 1 with liquid crystal panel and light supply apparatus (backlight apparatus) combination.In this liquid crystal indicator, light supply apparatus has housing, and this housing has the planar peristome relative with liquid crystal panel (planar illuminating part).Housing has been taken in reflector plate, LGP, a plurality of optical sheet successively from opposition side (base plate side) beginning of planar peristome.LGP is utilized as light entrance face with one side (end face that will link to each other with the back side with the surface that reflector plate and optical sheet join), and is relative with this light entrance face and dispose a plurality of light sources.A plurality of light sources are fixed on the flexible printing substrate, are electrically connected with the circuit that is provided with on this wiring substrate.The flexible printing substrate is derived to the outside via the distribution leading-out portion (peristome) that forms at the housing sidepiece.
The flexible printing substrate is electrically connected with the power circuit of going up the circuit substrate that carries at back side of shell (face of liquid crystal panel opposition side) usually.Therefore, usually, the flexible printing substrate of deriving from the sidepiece of housing is after the position bending once outstanding from the housing side, and the bight that is connected with the back side in the side with housing bends once more and disposes along the back side of housing.
But the flexible printing substrate is owing to only be formed with conductive foil (about 10～50 μ m of thickness) on thin dielectric film (about 10～50 μ m of thickness), so be subjected to the damage of external force easily.Therefore, with the combination of upper case body (casing of liquid crystal panel side) and lower case (casing of liquid crystal panel opposition side) and constitute under the situation of housing, with these two housing section combinations the time, having will be from the problem of the outstanding flexible printing substrate damage of housing, in addition, have because the problem of the dielectric film of flexible printing substrate being damaged with the EDGE CONTACT of the housing that is formed with the distribution leading-out portion.
In order to address the above problem, disclose the flexible printing substrate covering that to derive from housing in the patent documentation 2 and the technology of protecting.But the technology of patent documentation 2 is owing to using the independent protection parts to have the problem that number of spare parts increases.
Patent documentation 1:(Japan) No. 3991358 communique of patent
Patent documentation 2:(Japan) spy opens the 2001-331122 communique
Summary of the invention
The invention provides a kind of light supply apparatus and liquid crystal indicator, under the prerequisite that does not increase number of spare parts, the flexible printing substrate that light source and light source driving circuit are electrically connected is protected.
Particularly, light supply apparatus of the present invention and liquid crystal indicator have been taken in LGP, light source and at least one optical sheet in the optical element accommodation space that is formed by housing, make the light that is injected into LGP from light source in LGP, spread after, penetrate from the light-emitting face of this LGP planarly, it is characterized in that, comprise: the distribution leading-out portion, it is formed on the described housing; The flexible printing substrate, it has the circuit that is connected with described light source, and derives to the outside from described optical element accommodation space via described distribution leading-out portion; The distribution protective layer, itself and described optical sheet form, be arranged in the described distribution leading-out portion, between described housing and the described flexible printing substrate.
According to light supply apparatus of the present invention and liquid crystal indicator, the flexible printing substrate utilizes the circuit connecting section that optical sheet covers and protection is derived from housing, so circuit connecting section is direct and the EDGE CONTACT of the plate of housing and formation housing.Therefore, in the manufacturing of light supply apparatus or in using, do not damage the flexible printing substrate.
Description of drawings
Fig. 1 is the rear isometric view of liquid crystal indicator of the present invention;
Fig. 2 is the stereogram of the light supply apparatus of the present invention (removing upper body) seen from behind;
Fig. 3 is the stereogram of the light supply apparatus of the present invention (removing upper body) seen from the top;
Fig. 4 is the exploded perspective view of light supply apparatus of the present invention (removing upper body);
Fig. 5 is the expanded view of Fig. 2, optical sheet (reflector plate) shown in Figure 3;
Fig. 6 (a) is that expression uses the distribution protection portion that forms on the reflector plate of Fig. 5 to protect the stereogram of the operation of wiring substrate;
Fig. 6 (b) is that expression uses the distribution protection portion that forms on the reflector plate of Fig. 5 to protect the stereogram of the operation of wiring substrate;
Fig. 6 (c) is that expression uses the distribution protection portion that forms on the reflector plate of Fig. 5 to protect the stereogram of the operation of wiring substrate;
Fig. 6 (d) is that expression uses the distribution protection portion that forms on the reflector plate of Fig. 5 to protect the stereogram of the operation of wiring substrate;
Fig. 6 (e) is that expression uses the distribution protection portion that forms on the reflector plate of Fig. 5 to protect the stereogram of the operation of wiring substrate;
Fig. 7 is the stereogram of the another way of expression distribution protection portion;
Fig. 8 is the expanded view of distribution protection portion shown in Figure 7;
Fig. 9 is the stereogram of other modes of expression distribution protection portion;
Figure 10 is the expanded view of distribution protection portion shown in Figure 9;
Figure 11 is the stereogram of other modes of expression distribution leading-out portion;
Figure 12 is a stereogram of together representing other modes of distribution leading-out portion with Figure 11;
Figure 13 is a stereogram of together representing other modes of distribution leading-out portion with Figure 11.
Description of reference numerals
10: liquid crystal indicator
12: liquid crystal panel
14: light supply apparatus (backlight apparatus)
16: drive circuit
18: printing distributing board
20: electronic component
22: the flexible printing substrate
24: the flexible printing substrate
26: housing
28: the lower case body
30: the upper case body
32: base plate
34: side plate
36: side plate
38: the optical element accommodation space
40: light source cell
42: light source
44: circuit connecting section
46: the distribution leading-out portion
48: reflector plate
50: the bottom
52: sidepiece
54: opening
56: LGP
58: optical sheet
60: distribution protection portion
62: the first extensions
64: the second extensions
66: the first kinks
68: the first covering portions
70: the second covering portions
72: the second kinks
74: the LGP lateral parts
76: bottom margin portion
78: the three covering portions
80: joint-cutting
82: the first folding lines
84: the second folding lines
86: the four kinks
88: the four covering portions
90: the five kinks
92: the five covering portions
94: double-sided belt
96: terminal
98: the terminal connecting portion
100: the distribution leading-out portion
The specific embodiment
Below, with reference to description of drawings light supply apparatus of the present invention and the embodiment that comprises the liquid crystal indicator of light supply apparatus.
Embodiment 1
Fig. 1 is the figure of the liquid crystal indicator seen from behind.Liquid crystal indicator 10 among the figure has liquid crystal panel 12, is configured in liquid crystal panel 12 light supply apparatus (backlight apparatus) 14 behind and the drive circuit 16 that is configured in light supply apparatus 14 behinds.
Drive circuit 16 has printing distributing board 18.Printing distributing board 18 for example has a plurality of drivings electronic component 20 on the face that is positioned at light supply apparatus 14 opposition sides, the flexible printing substrate 22 of the side configuration by crossing light supply apparatus 14 and being electrically connected with liquid crystal panel 12 is electrically connected with light supply apparatus 14 (light source described later) by the flexible printing substrate 24 of drawing to the behind from the sidepiece at light supply apparatus 14 back sides.
As shown in Figure 4, before with lower case body 28 and 30 combinations of upper case body, take in a plurality of optical elements in the inside (being equivalent to optical element accommodation space 38) of lower case body 28.Particularly, the inner face at a long side direction side plate 34 (34a) disposes light source cell 40.Light source cell 40 has banded flexible printing substrate 24, and it is identical or than its highly slightly little width that this flexible printing substrate 24 has a height with side plate 34a.On flexible printing substrate 24, formed circuit (distribution).On one of flexible printing substrate 24 distolateral one side, separate predetermined distance and be fixed with a plurality of light sources 42, these light sources 42 are electrically connected with the power circuit that forms on flexible printing substrate 24.Light source 42 can utilize LED.Flexible printing substrate 24 with said structure is with the inboard inner face that also by suitable fixed form (for example double-sided belt) be fixed on side plate 34a of a plurality of light sources 42 towards accommodation space 38.Shown in Fig. 6 (a), another the distolateral circuit connecting section 44 that is positioned at flexible printing substrate 24 derives to the outside from the distribution leading-out portion 46 of the peristome that dissects the part at the side plate 34b with the short side direction of side plate 34a adjacency and form.
Then, in accommodation space 38, take in reflector plate 48 as one of optical sheet.Reflector plate 48 has the bottom 50 relative with base plate 32, the sidepiece 52 relative with four side plates 34.As shown in the figure, 52 pairs of sidepieces relative with the side plate 34a that light source cell 40 is installed and light source 42 corresponding positions are dissectd and are formed with opening 54, and light source 42 exposes from these openings 54.Describe in detail below, formed distribution protection portion 60 on reflector plate 48, this distribution protection portion 60 is used to protect the circuit connecting section 44 of above-mentioned flexible printing substrate 24 from housing 26 derivation.
On the lower case body 28 of taking in reflector plate 48, LGP 56 and optical sheet 58, dispose upper case body 30 as described above.At this moment, as illustrated in fig. 1, the side plate 34 of lower case body 28 is covered by the side plate 36 of corresponding upper case body 30.
Shown in Fig. 6 (b), first extension 62 is when being installed in reflector plate 48 on the lower case body 28, and the connecting portion (first kink 66) in first extension 62 and bottom 50 bends and disposes along lower case side plate 34a.As shown in the figure, it is desirable to, first extension 62 extends to the end (right-hand end the figure) of side plate 34 near the light source 42 of right-hand end configuration in the drawings, and its circuit connecting section 44 is behind covered.Under this state, first extension 62 has first covering portion 68 of the inner face covering of side plate 34a and the second covering portion 70 of stretching out laterally from side plate 34a.The second covering portion 70 is after being accommodated in lower case body 28 with LGP 56 shown in Fig. 6 (c), in second kink, 72 bendings between the first covering portion 68 and the second covering portion 70, the LGP lateral parts 74 that the second covering portion 70 will be positioned at distribution leading-out portion 46 covers shown in Fig. 6 (d).In addition, has the 3rd covering portion 78 for well, be configured in the second covering portion 70 under the state on the lateral parts 74 of LGP 56, extend the below of the end of the second covering portion 70 in figure, and the bottom edge portion 76 (with reference to Fig. 6 (a)) that will be formed with the part (position of configuration circuit connecting portion 44 afterwards) of distribution leading-out portion 46 covers.
With reference to Fig. 5, second extension 46 is formed with joint-cutting 80 at the position that the 3rd covering portion 78 passes through as described above.Therefore, the 3rd covering portion 78 not with 46 interferences of second extension, can be by joint-cutting 80 in figure the below stretch out (with reference to Fig. 6 (d)).After first extension 62 was disposed as described above, the circuit connecting section 44 of flexible printing substrate 24 was in first folding line 82 bendings corresponding with second kink 72, along configuration on the second covering portion 70.In addition, circuit connecting section 44 along with circuit connecting section 44 (about miter angle) cross-section second folding line, 84 bendings obliquely, is drawn along the 3rd covering portion 78 and via joint-cutting 80 below in figure near the 3rd covering portion 78.Then, (the 4th kink 86 (with reference to Fig. 6 (b)) bending overlaps on the circuit connecting section 44 that is positioned on the second covering portion 70 (with reference to Fig. 6 (e)) connecting portion of second extension 64 in second extension 64 and bottom 50.Second extension 64 in the second covering portion 70 except the 4th covering portion 88 that circuit connecting section 44 is covered, also has the 5th covering portion 92, the 5th covering portion 92 gives prominence to upward from the surface of LGP 56 shown in Fig. 6 (e) and in 90 bendings of the 5th kink, is configured on the LGP 56.The 5th covering portion 92 by mounting under the state on LGP 56 surfaces, be fixed on the LGP 56 by the double-sided belt of being located between the 5th covering portion 92 and the LGP 56 94.As shown in Figure 1, 2, the back side configuration from the outstanding circuit connecting section 44 of the base plate of lower case 26 along lower case 26 is connected the terminal 96 of being located at circuit connecting section 44 ends with the terminal connecting portion 98 of being located at printing distributing board 18.
Like this, according to the light supply apparatus 14 of embodiment, the flexible printing substrate 24 that is supported with a plurality of light sources 42 utilizes the circuit connecting section 44 that reflector plate 48 covers and protection is derived from housing 26.Therefore, circuit connecting section 44 directly with the EDGE CONTACT of the plate that constitutes housing 26.In addition, when being installed in upper case body 30 on the lower case 26, the edge part of upper case body 30 directly and circuit connecting section 44 join.Therefore, in the manufacturing of light supply apparatus 14, do not damage flexible printing substrate 24.And, can obtain object construction by the simple change that only changes a part of structure of existing light supply apparatus.In addition; distribution protection portion 60 not only covers flexible printing substrate 24 and protection; and near distribution leading-out portion 46, also the side of LGP 56 is covered, so the light that spills from the side of LGP 56 all returns LGP 56, so it is planar luminous to access even brightness.
Distribution protection portion is not limited to aforesaid way.For example the distribution protection portion 100 of mode shown in Fig. 7,8 is applicable to the light supply apparatus of light source cell 40 along base plate 32 configuration of lower case body 28.Distribution protection portion 100 has the extension 104 that is provided with integratedly with reflector plate 48.Extension 104 has from the bottom the 48 second covering portions 108 of further extending to the first covering portions 106 that side plate 34a extends, with the first covering portion 106.During practical application, as shown in Figure 7, the back side of the first covering portion, 106 holding circuit connecting portions 44 (face relative) with bottom 32.The second covering portion 108 is kink 110 bendings that are positioned at the border of the first covering portion 106, the surface of holding circuit connecting portion 44 (being positioned at the face of bottom 32 opposition sides).The size of the first covering portion 106 and the second covering portion 108, as illustrated in fig. 7, outstanding and circuit connecting section 44 does not directly contact with the shell rim 112 of distribution leading-out portion 46 to well via distribution leading-out portion 46.
In the above description, distribution protection portion is arranged on the reflector plate (optical sheet) 48, clips LGP 56 and be disposed on other optical sheets 58 of reflector plate 48 opposition sides but also can be arranged on.Under the situation that disposes a plurality of optical sheets 58, as long as be arranged on in these a plurality of optical sheets any.Particularly with reference to Fig. 9,10, on a optical sheet 58, formed distribution protection portion 120 with the surface coverage of LGP 56.Distribution protection portion 120 has the edge in the zone 122 that joins from the surface with LGP 56 to the outstanding extension 124 of side plate 34a.Extension 124 begins to have successively three covering portions (the first covering portion 126, the second covering portion 128, the 3rd covering portion 130) from regional 122 sides.In actual applications, before being configured in optical sheet 58 on the LGP 56, bend roughly 90 degree at the kink 132 that is positioned at the first covering portion 126 and the second covering portion, 128 borders, form tube 136 in kink 134 bending that is positioned at the second covering portion 128 and the 3rd covering portion 130 borders then, circuit connecting section 46 is inserted lead among this tube 136.Then, the zone 122 with optical sheet 58 overlaps on LGP 56.In the present embodiment, the size of setting distribution protection portion 120 as follows is for well, as shown in Figure 9, distribution protected portion's 120 bendings and the tube 136 that forms is outstanding laterally via distribution leading-out portion 46.
In the above description, the distribution leading-out portion excises the part of the side plate 34 of lower case body 28 and form, but the distribution leading-out portion can be formed on the base plate 32 of lower case body 28.For example, as Figure 11～shown in Figure 13 ground, in the present embodiment, distribution leading-out portion (opening) 140 is formed near the connecting portion (bight) of the bottom 32 of lower case 28 and side plate 34, and circuit connecting section 44 is drawn to the outside via distribution leading-out portion 140.In addition, draw via distribution leading-out portion 140 with the integrally formed distribution protection portion of the part (part of bottom 50 or sidepiece 52) of reflector plate 48 142, circuit connecting section 44 does not directly contact with the edge part 144 of lower case 28.
By above explanation as can be known; according to light supply apparatus of the present invention and liquid crystal indicator; the flexible printing substrate utilizes the circuit connecting section that optical sheet covers and protection is derived from housing, so circuit connecting section is direct and the EDGE CONTACT of the plate of housing and formation housing.Therefore, in the manufacturing of light supply apparatus or in using, do not damage the flexible printing substrate.
Claims (7)
1. light supply apparatus, it has taken in LGP, light source and at least one optical sheet in the optical element accommodation space that is formed by housing, make the light that is injected into LGP from light source in LGP, spread after, penetrate from the light-emitting face of this LGP planarly, it is characterized in that, comprising:
The distribution leading-out portion, it is formed on the described housing;
The flexible printing substrate, it has the circuit that is connected with described light source, and derives to the outside from described optical element accommodation space via described distribution leading-out portion;
The distribution protective layer, itself and described optical sheet form, be arranged in the described distribution leading-out portion, between described housing and the described flexible printing substrate.
2. light supply apparatus as claimed in claim 1 is characterized in that, described distribution protection portion is with the part bending of described optical sheet and form, and protects the two sides of described flexible printing substrate by the described described distribution protection portion that is bent.
3. light supply apparatus as claimed in claim 1 is characterized in that, described distribution protection portion is configured in side described LGP and that light-emitting face is adjacent and between the described flexible printing substrate that disposes on the described side.
4. light supply apparatus as claimed in claim 1 is characterized in that, described distribution protection portion is fixed on the described LGP.
5. light supply apparatus as claimed in claim 1 is characterized in that, described optical sheet is to be configured in the back side of described LGP of described light-emitting face opposition side and the reflector plate between the described housing.
6. light supply apparatus as claimed in claim 1 is characterized in that, described optical sheet is the blooming that covers described light-emitting face.
7. a liquid crystal indicator is characterized in that, has described light supply apparatus of claim 1 and the liquid crystal panel that is configured on the described light-emitting face.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2007341110A JP5024038B2 (en) | 2007-12-28 | 2007-12-28 | Light source device and liquid crystal display device |
| JP341110/07 | 2007-12-28 | ||
| PCT/JP2008/072258 WO2009084379A1 (en) | 2007-12-28 | 2008-12-08 | Light source device and liquid crystal display device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101779074A true CN101779074A (en) | 2010-07-14 |
| CN101779074B CN101779074B (en) | 2013-11-06 |
Family
ID=40824100
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008801030401A Expired - Fee Related CN101779074B (en) | 2007-12-28 | 2008-12-08 | Light source device and liquid crystal display device |
Country Status (4)
| Country | Link |
|---|---|
| JP (1) | JP5024038B2 (en) |
| KR (1) | KR101121599B1 (en) |
| CN (1) | CN101779074B (en) |
| WO (1) | WO2009084379A1 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107315282A (en) * | 2017-08-14 | 2017-11-03 | 上海天马微电子有限公司 | Backlight module and display device |
| CN108445675A (en) * | 2018-03-27 | 2018-08-24 | 武汉华星光电技术有限公司 | Backlight module and display device |
| CN109061944A (en) * | 2018-07-18 | 2018-12-21 | 深圳市宝明科技股份有限公司 | A kind of LCD backlight iron-clad with metal bridge |
| US10824008B2 (en) | 2018-03-27 | 2020-11-03 | Wuhan China Star Optoelectronics Technology Co., Ltd. | Backlight module and display device |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012014601A1 (en) * | 2010-07-29 | 2012-02-02 | シャープ株式会社 | Illumination apparatus, display apparatus, and television receiver apparatus |
| CN103228977B (en) * | 2010-12-10 | 2015-06-03 | 京瓷株式会社 | Light-source device and display device |
| CN103260349A (en) * | 2012-02-15 | 2013-08-21 | 深圳市科伦特科技有限公司 | Soft and hard circuit board combined type light-emitting diode (LED) display module |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3182468B2 (en) * | 1993-03-05 | 2001-07-03 | シチズン時計株式会社 | Display device |
| JP2821437B2 (en) * | 1996-08-12 | 1998-11-05 | 静岡日本電気株式会社 | LCD panel |
| JP3991358B2 (en) * | 2003-01-07 | 2007-10-17 | ソニー株式会社 | Backlight device and liquid crystal display device |
| JP4251129B2 (en) * | 2004-10-25 | 2009-04-08 | セイコーエプソン株式会社 | Mounting structure, electro-optical device, and electronic apparatus |
| JP2006324608A (en) * | 2005-05-20 | 2006-11-30 | Pioneer Electronic Corp | Flexible substrate and its manufacturing method, and led-mounted flexible substrate and illuminating device |
| JP5382395B2 (en) * | 2006-01-23 | 2014-01-08 | セイコーエプソン株式会社 | Electrophoretic display sheet, electrophoretic display device, and electronic apparatus |
| JP2007199501A (en) * | 2006-01-27 | 2007-08-09 | Optrex Corp | Image display device |
-
2007
- 2007-12-28 JP JP2007341110A patent/JP5024038B2/en not_active Expired - Fee Related
-
2008
- 2008-12-08 WO PCT/JP2008/072258 patent/WO2009084379A1/en active Application Filing
- 2008-12-08 CN CN2008801030401A patent/CN101779074B/en not_active Expired - Fee Related
- 2008-12-08 KR KR1020107002172A patent/KR101121599B1/en active IP Right Grant
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107315282A (en) * | 2017-08-14 | 2017-11-03 | 上海天马微电子有限公司 | Backlight module and display device |
| CN108445675A (en) * | 2018-03-27 | 2018-08-24 | 武汉华星光电技术有限公司 | Backlight module and display device |
| US10824008B2 (en) | 2018-03-27 | 2020-11-03 | Wuhan China Star Optoelectronics Technology Co., Ltd. | Backlight module and display device |
| CN109061944A (en) * | 2018-07-18 | 2018-12-21 | 深圳市宝明科技股份有限公司 | A kind of LCD backlight iron-clad with metal bridge |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2009084379A1 (en) | 2009-07-09 |
| JP5024038B2 (en) | 2012-09-12 |
| CN101779074B (en) | 2013-11-06 |
| KR20100029140A (en) | 2010-03-15 |
| JP2009163952A (en) | 2009-07-23 |
| KR101121599B1 (en) | 2012-02-28 |
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