CN101779074B - Light source device and liquid crystal display device - Google Patents
Light source device and liquid crystal display device Download PDFInfo
- Publication number
- CN101779074B CN101779074B CN2008801030401A CN200880103040A CN101779074B CN 101779074 B CN101779074 B CN 101779074B CN 2008801030401 A CN2008801030401 A CN 2008801030401A CN 200880103040 A CN200880103040 A CN 200880103040A CN 101779074 B CN101779074 B CN 101779074B
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- Prior art keywords
- light
- guide plate
- housing
- light guide
- section
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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
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- 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
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- 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
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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
- H05K1/11—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
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 configures at liquid crystal panel behind and with the liquid crystal indicator of this light supply apparatus and liquid crystal templated combination.
Background technology
Disclose the liquid crystal indicator with liquid crystal panel and light supply apparatus (backlight apparatus) combination in patent documentation 1.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, light guide plate, a plurality of optical sheet successively from opposition side (base plate side) beginning of planar peristome.Light guide plate is utilized as light entrance face with one side (end face that will be connected 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 to the circuit that arranges 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 to the power circuit of the circuit substrate that upward 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 again bends and configures along the back side of housing.
But the flexible printing substrate is owing to only being formed with conductive foil (thickness is 10～50 μ m approximately) on thin dielectric film (thickness is 10～50 μ m approximately), so easily be subject to the damage of external force.Therefore, in the situation that upper case body (casing of liquid crystal panel side) and lower case (casing of liquid crystal panel opposition side) are made up and the formation housing, with this two housing section combinations the time, having will be from the problem of the outstanding flexible printing substrate damage of housing, in addition, has the problem of the dielectric film of flexible printing substrate being damaged due to 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 patent documentation 2 and the technology of protecting.But guard block has the problem that number of spare parts increases to the technology of patent documentation 2 owing to using independently.
Patent documentation 1:(Japan) No. 3991358 communique of patent
Patent documentation 2:(Japan) JP 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 to is protected.
Particularly, light supply apparatus of the present invention and liquid crystal indicator have been taken in light guide plate, 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 light guide plate from light source spread in light guide plate after, penetrate from the light-emitting face of this light guide plate planarly, it is characterized in that, comprise: the distribution leading-out portion, it is formed on 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 seam, itself and described optical sheet form, be arranged in described distribution leading-out portion, between described housing and described flexible printing substrate.
According to light supply apparatus of the present invention and liquid crystal indicator, the flexible printing substrate utilizes optical sheet to cover and protects the circuit connecting section that derives from housing, so circuit connecting section is direct and the edge contact of the plate of housing and formation housing.Therefore, do not damage the flexible printing substrate in the manufacturing of light supply apparatus or in using.
Description of drawings
Fig. 1 is the rear isometric view of liquid crystal indicator of the present invention;
Fig. 2 is the stereographic map of the light supply apparatus of the present invention (removing upper body) seen from behind;
Fig. 3 is the stereographic map 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 stretch-out view of Fig. 2, optical sheet (reflector plate) shown in Figure 3;
Fig. 6 (a) means the stereographic map of using the distribution protection section that forms to protect the operation of wiring substrate on the reflector plate of Fig. 5;
Fig. 6 (b) means the stereographic map of using the distribution protection section that forms to protect the operation of wiring substrate on the reflector plate of Fig. 5;
Fig. 6 (c) means the stereographic map of using the distribution protection section that forms to protect the operation of wiring substrate on the reflector plate of Fig. 5;
Fig. 6 (d) means the stereographic map of using the distribution protection section that forms to protect the operation of wiring substrate on the reflector plate of Fig. 5;
Fig. 6 (e) means the stereographic map of using the distribution protection section that forms to protect the operation of wiring substrate on the reflector plate of Fig. 5;
Fig. 7 means the stereographic map of the another way of distribution protection section;
Fig. 8 is the stretch-out view of shown in Figure 7 distribution protection section;
Fig. 9 means the stereographic map of other modes of distribution protection section;
Figure 10 is the stretch-out view of shown in Figure 9 distribution protection section;
Figure 11 means the stereographic map of other modes of distribution leading-out portion;
Figure 12 together represents the stereographic map of other modes of distribution leading-out portion with Figure 11;
Figure 13 together represents the stereographic map of 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: driving 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: light guide plate
58: optical sheet
60: distribution protection section
62: the first extensions
64: the second extensions
66: the first kinks
68: the first covering sections
70: the second covering sections
72: the second kinks
74: the light guide plate lateral parts
76: the bottom sides edge
78: the three covering sections
80: joint-cutting
82: the first folding lines
84: the second folding lines
86: the four kinks
88: the four covering sections
90: the five kinks
92: the five covering sections
94: double-sided belt
96: terminal
98: terminal connection part
100: the distribution leading-out portion
Embodiment
Below, the embodiment that illustrates referring to the drawings light supply apparatus of the present invention and comprise 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 in figure has liquid crystal panel 12, is configured in liquid crystal panel 12 light supply apparatus (backlight apparatus) 14 behind and the driving circuit 16 that is configured in light supply apparatus 14 behinds.
Driving 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 to liquid crystal panel 12 is electrically connected to light supply apparatus 14 (light source described later) by the flexible printing substrate 24 of drawing to the behind from a 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) configures 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.Formed circuit (distribution) on flexible printing substrate 24.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 to the power circuit that forms on flexible printing substrate 24.Light source 42 can utilize LED.Has the flexible printing substrate 24 of said structure 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.As 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, take in reflector plate 48 as one of optical sheet in accommodation space 38.Reflector plate 48 have the bottom 50 relative with base plate 32, with four sidepieces 52 that side plate 34 is relative.As shown in the figure, the position that 52 pairs of sidepieces relative with the side plate 34a that light source cell 40 is installed and light source 42 are corresponding is dissectd and is formed with opening 54, and light source 42 exposes from these openings 54.Describe in detail below, formed distribution protection section 60 on reflector plate 48, the circuit connecting section 44 that this distribution protection section 60 derives from housing 26 for the protection of above-mentioned flexible printing substrate 24.
Configure as described above upper case body 30 on the lower case body 28 of taking in reflector plate 48, light guide plate 56 and optical sheet 58.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.
As shown in Fig. 6 (b), the first extension 62 is when being arranged on reflector plate 48 on lower case body 28, and the connecting portion (the first kink 66) in the first extension 62 and bottom 50 bends and configures along lower case side plate 34a.As shown in the figure, it is desirable to, the first extension 62 extends to the end (right-hand end 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, the second covering section 70 that the first extension 62 has the first covering section 68 that the inner face of side plate 34a is covered and stretches out laterally from side plate 34a.The second covering section 70 is after being accommodated in lower case body 28 with light guide plate 56 as shown in Fig. 6 (c), in the second kink 72 bendings between the first covering section 68 and the second covering section 70, the light guide plate lateral parts 74 that the second covering section 70 will be positioned at distribution leading-out portion 46 covers as shown in Fig. 6 (d).In addition, has the 3rd covering section 78 for well, be configured in the second covering section 70 under the state on the lateral parts 74 of light guide plate 56, extend to the below in figure the end of the second covering section 70, and the bottom edge section 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, the second extension 46 is formed with joint-cutting 80 at the position that the 3rd covering section 78 passes through as described above.Therefore, the 3rd covering section 78 not with the second extension 46 interferences, can be by joint-cutting 80 in the figure below stretch out (with reference to Fig. 6 (d)).After the first extension 62 was configured as described above, the circuit connecting section 44 of flexible printing substrate 24 was in corresponding with the second kink 72 the first folding line 82 bendings, along configuration on the second covering section 70.In addition, circuit connecting section 44 near the 3rd covering section 78 along with circuit connecting section 44 second cross-section folding line 84 bendings of (approximately miter angle) obliquely, along the 3rd covering section 78 and via joint-cutting 80 below in the figure drawing.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 section 70 (with reference to Fig. 6 (e)) the second extension 64 at the connecting portion of the second extension 64 and bottom 50.The second extension 64 in the second covering section 70 except the 4th covering section 88 that circuit connecting section 44 is covered, also has the 5th covering section 92, the 5th covering section 92 is outstanding and in the 5th kink 90 bendings upward from the surface of light guide plate 56 as shown in Fig. 6 (e), is configured on light guide plate 56.The 5th covering section 92 is fixed on light guide plate 56 by the double-sided belt 94 of being located between the 5th covering section 92 and light guide plate 56 being loaded under the state on light guide plate 56 surfaces.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 connection part 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 reflector plate 48 to cover and protects the circuit connecting section 44 that derives from housing 26.Therefore, circuit connecting section 44 directly with the edge contact of the plate that consists of housing 26.In addition, when being arranged on upper case body 30 on lower case 26, the edge part of upper case body 30 directly and circuit connecting section 44 join.Therefore, do not damage flexible printing substrate 24 in the manufacturing of light supply apparatus 14.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 section 60 not only covers flexible printing substrate 24 and protect; and also the side of light guide plate 56 is covered near distribution leading-out portion 46, so the light that spills from the side of light guide plate 56 all returns to light guide plate 56, so it is uniformly planar luminous to access brightness.
Distribution protection section is not limited to aforesaid way.For example the distribution protection section 100 of mode shown in Fig. 7,8 is applicable to the light supply apparatus of light source cell 40 along base plate 32 configurations of lower case body 28.Distribution protection section 100 has the extension 104 that arranges integratedly with reflector plate 48.Extension 104 has from the bottom the 48 second covering sections 108 of further extending to the first covering section 106 that side plate 34a extends, with the first covering section 106.During practical application, as shown in Figure 7, the back side (face relative with bottom 32) of the first covering section 106 holding circuit connecting portions 44.The second covering section 108 is kink 110 bendings that are positioned at the border of the first covering section 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 section 106 and the second covering section 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 as well via distribution leading-out portion 46.
In the above description, distribution protection section is arranged on reflector plate (optical sheet) 48, clips light guide plate 56 and be disposed on other optical sheets 58 of reflector plate 48 opposition sides but also can be arranged on.In the situation that dispose a plurality of optical sheets 58, as long as be arranged on any in these a plurality of optical sheets.Particularly with reference to Fig. 9,10, formed distribution protection section 120 on an optical sheet 58 with the surface coverage of light guide plate 56.Distribution protection section 120 has the edge in the zone 122 that joins from the surface with light guide plate 56 to the outstanding extension 124 of side plate 34a.Extension 124 begins to have successively three covering sections (the first covering section 126, the second covering section 128, the 3rd covering section 130) from regional 122 sides.In actual applications, before being configured in optical sheet 58 on light guide plate 56, bend roughly 90 degree at the kink 132 that is positioned at the first covering section 126 and the second covering section 128 borders, then form cylinder 136 in kink 134 bending that is positioned at the second covering section 128 and the 3rd covering section 130 borders, circuit connecting section 46 is inserted lead among this cylinder 136.Then, the zone 122 with optical sheet 58 overlaps on light guide plate 56.In the present embodiment, the size of setting as follows distribution protection section 120 is for well, as shown in Figure 9, distribution protected section's 120 bendings and the cylinder 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～ground shown in Figure 13, 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 distribution protection section 142 that the part (part of bottom 50 or sidepiece 52) of reflector plate 48 is integrally formed, 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 optical sheet to cover and protects the circuit connecting section that derives from housing, so circuit connecting section is direct and the edge contact of the plate of housing and formation housing.Therefore, do not damage the flexible printing substrate in the manufacturing of light supply apparatus or in using.
Claims (7)
1. light supply apparatus, it has taken in light guide plate, light source and optical sheet in the optical element accommodation space that is formed by housing, make the light that is injected into light guide plate from light source spread in light guide plate after, penetrate from the light-emitting face of this light guide plate planarly, it is characterized in that, comprising:
The distribution leading-out portion, it is formed on 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;
Distribution protection section, itself and described optical sheet form, and are arranged between the described housing and described flexible printing substrate in described distribution leading-out portion, and described distribution protection section will cover and protect from the circuit connecting section that described housing is derived.
2. light supply apparatus as claimed in claim 1, is characterized in that, described distribution protection section is with the part bending of described optical sheet and form, and protects the two sides of described circuit connecting section by the described described distribution protection section that is bent.
3. light supply apparatus as claimed in claim 1, is characterized in that, described distribution protection section is configured in side described light guide plate and that light-emitting face is adjacent and between the described flexible printing substrate that configures on described side.
4. light supply apparatus as claimed in claim 1, is characterized in that, described distribution protection section is fixed on described light guide plate.
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 light guide plate of described light-emitting face opposition side and the reflector plate between 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 light supply apparatus claimed in claim 1 and the liquid crystal panel that is configured on 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 CN101779074A (en) | 2010-07-14 |
| CN101779074B true 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) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
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| WO2012077746A1 (en) * | 2010-12-10 | 2012-06-14 | 京セラ株式会社 | 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 |
| CN107315282A (en) * | 2017-08-14 | 2017-11-03 | 上海天马微电子有限公司 | A kind of 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 |
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- 2008-12-08 KR KR1020107002172A patent/KR101121599B1/en active IP Right Grant
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| CN1766699A (en) * | 2004-10-25 | 2006-05-03 | 精工爱普生株式会社 | Mounting structure for an electro-optical device, electro-optical device and electronic apparatus |
| CN1867223A (en) * | 2005-05-20 | 2006-11-22 | 先锋株式会社 | Flexible substrate and method for manufacturing same, flexible substrate for LED mounting and lighting device |
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Also Published As
| Publication number | Publication date |
|---|---|
| KR20100029140A (en) | 2010-03-15 |
| JP2009163952A (en) | 2009-07-23 |
| KR101121599B1 (en) | 2012-02-28 |
| WO2009084379A1 (en) | 2009-07-09 |
| JP5024038B2 (en) | 2012-09-12 |
| CN101779074A (en) | 2010-07-14 |
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