CN104879680A - Direct type backlight structure and liquid crystal display device - Google Patents
Direct type backlight structure and liquid crystal display device Download PDFInfo
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- CN104879680A CN104879680A CN201510184293.8A CN201510184293A CN104879680A CN 104879680 A CN104879680 A CN 104879680A CN 201510184293 A CN201510184293 A CN 201510184293A CN 104879680 A CN104879680 A CN 104879680A
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- fixed bin
- photo structure
- shell
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- 239000004973 liquid crystal related substance Substances 0.000 title claims abstract description 27
- 230000006978 adaptation Effects 0.000 claims description 18
- 238000005452 bending Methods 0.000 claims description 10
- 238000007789 sealing Methods 0.000 claims description 10
- 238000009792 diffusion process Methods 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000010030 laminating Methods 0.000 description 3
- 230000003287 optical effect Effects 0.000 description 3
- 235000018734 Sambucus australis Nutrition 0.000 description 2
- 244000180577 Sambucus australis Species 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- OGFXBIXJCWAUCH-UHFFFAOYSA-N meso-secoisolariciresinol Natural products C1=2C=C(O)C(OC)=CC=2CC(CO)C(CO)C1C1=CC=C(O)C(OC)=C1 OGFXBIXJCWAUCH-UHFFFAOYSA-N 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S8/00—Lighting devices intended for fixed installation
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V15/00—Protecting lighting devices from damage
- F21V15/02—Cages
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V19/00—Fastening of light sources or lamp holders
- F21V19/001—Fastening of light sources or lamp holders the light sources being semiconductors devices, e.g. LEDs
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V23/00—Arrangement of electric circuit elements in or on lighting devices
- F21V23/003—Arrangement of electric circuit elements in or on lighting devices the elements being electronics drivers or controllers for operating the light source, e.g. for a LED array
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V23/00—Arrangement of electric circuit elements in or on lighting devices
- F21V23/06—Arrangement of electric circuit elements in or on lighting devices the elements being coupling devices, e.g. connectors
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V5/00—Refractors for light sources
- F21V5/04—Refractors for light sources of lens shape
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V7/00—Reflectors for light sources
- F21V7/10—Construction
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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
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/1336—Illuminating devices
- G02F1/133602—Direct backlight
- G02F1/133603—Direct backlight with LEDs
-
- 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
- G02F1/133602—Direct backlight
- G02F1/133606—Direct backlight including a specially adapted diffusing, scattering or light controlling members
-
- 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
- G02F1/133602—Direct backlight
- G02F1/133606—Direct backlight including a specially adapted diffusing, scattering or light controlling members
- G02F1/133607—Direct backlight including a specially adapted diffusing, scattering or light controlling members the light controlling member including light directing or refracting elements, e.g. prisms or lenses
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Engineering & Computer Science (AREA)
- Nonlinear Science (AREA)
- Mathematical Physics (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Planar Illumination Modules (AREA)
Abstract
The invention discloses a direct type backlight structure and a liquid crystal display device. The direct type backlight structure comprises a backlight module and a drive module. The backlight module comprises a shell, an LED light bar group is fixed in the shell, a reflector and a diffusion plate. The drive module is electrically connected with the LED light bar group and used for driving the LED chips of the LED light bar group to emit light. The shell comprises a base plate. A fixed box for accommodating the drive module is disposed on the base plate. The LED light bar group comprises a first light bar and a second light bar. The first light bar is fixed on the base plate. The second light bar is disposed on the fixed box. The reflector attaches to the mounting face of the LED light bar group. A first lens matched with the light mixing distance of the first light bar is disposed on the LED chip of the first light bar. A second lens matched with the light mixing distance of the second light bar is disposed on the LED chip of the second light bar. The direct type backlight structure has the advantages that the drive module is mounted between the fixed box and the inner wall of the shell, and the thickness of the direct type backlight structure is reduced.
Description
Technical field
The present invention relates to technical field of liquid crystal display, particularly relate to a kind of downward back photo structure and liquid crystal indicator.
Background technology
The backlight of liquid crystal indicator is divided into straight-down negative and side-light type, and straight-down negative is that light emitting source is used as at the rear that LED grain collocation lens are configured in liquid crystal panel equably, makes backlight can evenly be communicated to whole screen.Side light type LED backlight source is edge LED grain being configured in LCD screen, then light guide plate of arranging in pairs or groups, and when making LED backlight module luminous, the light transmission light guide plate launched is transported to the region of center Screen from screen edge.
Current directly-down liquid crystal display unit comprises backlight module, liquid crystal panel, driving module and complete machine bonnet; Backlight module mainly comprises backboard, reflector plate, LED lamp bar, diffuser plate and blooming piece; LED lamp bar comprises pcb board, LED chip and optical lens; Module is driven to comprise power panel and mainboard.The design of existing directly-down liquid crystal display unit, LED chip coordinates corresponding unified optical lens, the upper reflector plate of collocation, and by diffuser plate and blooming piece, light energy is sent to liquid crystal panel, the light mixing distance of all LED chip is identical.Drive module to be then attached to the backboard back side by screw lock, between complete machine bonnet and backboard, form the space of accommodating driving module.Size on the thickness direction of directly-down liquid crystal display unit mainly comprises the light mixing distance of the LED chip in backboard backlight cavities and drives the thickness of module.Directly-down liquid crystal display unit is after the light mixing distance of backlight module is determined, the thickness of complete machine is mainly limited to the thickness driving module, makes the thickness of directly-down liquid crystal display unit be difficult to further reduction.
Summary of the invention
Main purpose of the present invention is to provide a kind of downward back photo structure, is intended to the technical problem that the backlight module of existing downward back photo structure is larger with driving the combining structure thickness of module.
For achieving the above object, the invention provides a kind of downward back photo structure, this downward back photo structure comprises backlight module and drives module; Described backlight module comprises shell, LED lamp bar group, reflector plate and the diffuser plate be fixedly arranged in described shell; Described driving module is electrically connected with described LED lamp bar group, for driving the LED chip of described LED lamp bar group luminous; Described shell comprises base plate, and described base plate is provided with the fixed bin for accommodating described driving module; Described LED lamp bar group comprises the first lamp bar and the second lamp bar that arrange in groups; Described first lamp bar is fixed on described base plate, described second lamp bar is arranged on described fixed bin towards in the one side of described diffuser plate; Described reflector plate described LED lamp bar group of fitting is arranged at the installed surface of described base plate, fixed bin; The LED chip of described first lamp bar is provided with the first lens with described first lamp bar light mixing distance adaptation, and the LED chip of described second lamp bar is provided with the second lens with described second lamp bar light mixing distance adaptation; Described first lens coordinate with described second lens, in order on the whole light is evenly passed to described diffuser plate.
Preferably, described shell also comprises side plate, described fixed bin near described shell one described in side plate install; Described fixed bin comprises a roof and three sidewalls, and described second lamp bar is arranged on described roof; To be enclosed by described fixed bin and described base plate for the space of accommodating described driving module and formed; The corresponding described fixed bin of described side plate is provided with the handling hole for loading and unloading described driving module.
Preferably, described fixed bin be oppositely arranged two described in sidewall be provided with guide groove; Described guide groove is extended to the described sidewall relative with described handling hole from described handling hole; Described handling hole edge is provided with the breach with described guide groove adaptation; The mainboard that described driving module comprises installing plate, power panel and is electrically connected with described power panel; Described power panel and described mainboard are folded and are established and be fixed on described installing plate; Described installing plate is plugged in described guide groove.
Preferably, described sidewall is formed by described roof bending; Described guide groove is arranged on the junction of described roof and sidewall; Described power panel and described mainboard are between described installing plate and base plate.
Preferably, described installing plate comprises the sealing plate of supporting plate and one end bending formation from described supporting plate; Described power panel and described mainboard are folded and are established and be fixed on described supporting plate; Described supporting plate is plugged in described guide groove; After described installing plate loads described fixed bin, described sealing plate covers described handling hole.
Preferably, described installing plate also comprises the guide rail formed from the side bending that described supporting plate is adjacent with described sealing plate; Described guide rail and described guide groove are slidably connected.
Preferably, described downward back photo structure also comprises lamp bar transfer block and lamp bar connecting line; Described lamp bar transfer block is fixedly mounted on the one side of described roof towards described base plate; One end of described lamp bar transfer block is provided with the contact pin with described lamp bar connecting line adaptation, and the other end is provided with the female with the golden finger male adaptation of described power panel; LED lamp bar group passes through the electric connection of lamp bar connecting line and power panel.
Preferably, described first lens are refractive lenses; Described second lens are reflection lens.
Preferably, described reflector plate has and be inclined to set connecting portion relative with the sidewall of described fixed bin.
In addition, for achieving the above object, the present invention also provides a kind of liquid crystal indicator, and this liquid crystal indicator comprises above-mentioned downward back photo structure.
Downward back photo structure of the present invention is by being installed between fixed bin and outer casing inner wall by driving module, be about to drive module to be installed on the inside of shell, simultaneous adaptation ground in the enclosure wall arranges the first lens, and fixed bin arranges the second lens that light mixing distance is less than the first lens; And shell is directly used as the bonnet of liquid crystal indicator complete machine, thus reduces the thickness of complete machine.
Accompanying drawing explanation
Fig. 1 is downward back photo structure one embodiment perspective view of the present invention;
Fig. 2 is the decomposed structural representation of downward back photo structure in Fig. 1;
Fig. 3 is backlight module in Fig. 2, drives module and fixed bin one embodiment part assembling structure schematic diagram;
Fig. 4 is Fig. 3 housing and fixed bin package assembly schematic diagram;
Fig. 5 is the perspective view driving module in Fig. 3;
Fig. 6 is Fig. 4 housing and fixed bin back side decomposition texture schematic diagram;
Fig. 7 is A place partial enlargement structural representation in Fig. 6;
Fig. 8 is the decomposed structural representation driving module and lamp bar transfer block one embodiment in Fig. 5;
Fig. 9 is B place partial enlargement structural representation in Fig. 8;
Figure 10 is C place partial enlargement structural representation in Fig. 8;
Figure 11 is perspective view when driving module loading downward back photo structure half in Fig. 2;
Figure 12 is perspective view when driving module to load direct-type backlight structure soon in Fig. 2;
The realization of the object of the invention, functional characteristics and advantage will in conjunction with the embodiments, are described further with reference to accompanying drawing.
Detailed description of the invention
Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.
The invention provides a kind of downward back photo structure, referring to figs. 1 through 5, in one embodiment, this downward back photo structure comprises backlight module 1 and drives module 2; Backlight module 1 comprises shell 11, the LED lamp bar group 12 be fixedly arranged in shell 11, reflector plate 13 and diffuser plate 15; Drive the mainboard 22 that module 2 comprises power panel 21 and is electrically connected with power panel 21; Drive module 2 to be electrically connected with LED lamp bar group 12, the LED chip for driving LED lamp bar group 12 is luminous; Shell 11 comprises base plate 111, and base plate 111 is provided with the fixed bin 14 for accommodating driving module 2; LED lamp bar group 12 comprises the first lamp bar 121 and the second lamp bar 122 arranged in groups; First lamp bar 121 is fixed on base plate 111, the second lamp bar 122 is arranged on fixed bin 14 towards in the one side of diffuser plate 15; Reflector plate 13 LED lamp bar group 12 of fitting is arranged at the installed surface of base plate 111 and fixed bin 14, and namely the corresponding fixed bin 14 of reflector plate 13 is provided with towards the recess 131 of fixed bin 14; The LED chip of the first lamp bar 121 is provided with and is provided with the second lens 124 with the second lamp bar 122 light mixing distance adaptation with the LED chip of the first lens 123, second lamp bar 122 of the first lamp bar 121 light mixing distance adaptation; First lens 123 coordinate with the second lens 124, in order on the whole light is evenly passed to diffuser plate 15, namely make the backlight effect of downward back photo structure not occur the defect of the light and shade such as aperture, lamp shadow inequality on the whole.
In the present embodiment, particularly, please refer to Fig. 5 and Fig. 8, drive module 2 also to comprise and mainboard 22 is electrically connected and is fixed on installing plate 23 and SECO plate 25 between power panel 21 and mainboard 22; SECO plate 25 is connected by low-voltage differential signal line 26 with mainboard 22; Backlight module 1 also comprise be arranged on reflector plate 13 and downward back photo structure liquid crystal panel 6 between diffuser plate 15.
Downward back photo structure of the present invention is installed between fixed bin 14 and shell 11 inwall by just driving module 2, be about to drive module 2 to be installed on the inside of shell 11, simultaneous adaptation the first lens 123 are set on shell 11 inwall, fixed bin 14 arranges the second lens 124 with less light mixing distance adaptation; And shell 11 is directly used as the bonnet of downward back photo structure complete machine, thus reduces the thickness of complete machine.
Further, with reference to Fig. 6 to 8, in one embodiment, shell 11 also comprises side plate 112, and fixed bin 14 is arranged on the side plate 112 of shell 11; Fixed bin 14 comprises a roof 142 and three sidewall 143, second lamp bars 122 are arranged on roof 142; To be enclosed by fixed bin 14 and base plate 111 for the space of accommodating driving module 2 and formed; The corresponding fixed bin 14 of side plate 112 is provided with for loading and unloading the handling hole 113 driving module 2.Thus, module 2 is driven can to load fixed bin 14 from the side of shell 11.
Further, please with reference to Figure 11 and Figure 12, in one embodiment, the sidewall 143 that fixed bin 14 liang is oppositely arranged is provided with guide groove 144; Guide groove 144 Self-loading-unloading hole 113 is extended to the sidewall 143 relative with handling hole 113; Handling hole 113 edge is provided with the breach 114 with guide groove 144 adaptation; Module 2 is driven also to comprise installing plate 23; Power panel 21 is established with mainboard 22 is folded and is fixed on installing plate 23; Installing plate 23 is plugged in guide groove 144.By the guide effect of guide groove 144 pairs of installing plates 23, facilitate the handling driving module 2, can ensure to drive the installation accuracy of module 2 in fixed bin 14 simultaneously, in addition, can also prevent from causing power panel 21 and/or mainboard 22 to collide with shell 11 because of rocking of driving module 2 in installation process.
Further, sidewall 143 is formed by roof 142 bending; Guide groove 144 is arranged on the junction of roof 142 and sidewall 143; Power panel 21 and mainboard 22 are between installing plate 23 and base plate 111.Be understandable that, because power panel 21 and mainboard 22 are installed on the same side of installing plate 23, guide groove 144 is arranged on roof 142 and the junction of sidewall 143, just can forms maximum installing space between installing plate 23 and base plate 11, improve space availability ratio in fixed bin 14.
Further, installing plate 23 comprises the sealing plate 232 of supporting plate 231 and one end bending formation from supporting plate 231; Power panel 21 is established with mainboard 22 is folded and is fixed on supporting plate 231; Supporting plate 231 is plugged in guide groove 144; After installing plate 23 loads fixed bin 14, sealing plate 232 covers handling hole 113.After installing plate 23 loads fixed bin 14, sealing plate 232 covers handling hole 113.Thus, can prevent shell 11 internal components from receiving dust pollution.
Further, installing plate 23 also comprises the guide rail 233 formed from the side bending that supporting plate 231 is adjacent with sealing plate 232; Guide rail 233 and guide groove 144 are slidably connected.Guide rail 233 is formed by supporting plate 231 edge bending, can increase the contact area between guide groove 144, and then strengthens the constant intensity of installing plate 23 in fixed bin 14 and improve installation accuracy.
Further, please with reference to Fig. 9 and Figure 10, in one embodiment, downward back photo structure also comprises lamp bar transfer block 3 and lamp bar connecting line 4; Lamp bar transfer block 3 is fixedly mounted on the one side of roof 142 towards base plate 111; Particularly, lamp bar transfer block 3 adjacent sidewall 143 is arranged, and sidewall 143 corresponding lamp bar transfer block 3 is provided with via hole 1431; Lamp bar transfer block 3 is fixed by screws on roof 142, and lamp bar transfer block 3 is provided with through hole 33, and roof 142 correspondence is provided with screw hole column 1421; Screw, through through hole 33, screws in the screw in screw hole column 1421, lamp bar transfer block 3 is fixed on roof 142.One end of lamp bar transfer block 3 is provided with the contact pin 31 with lamp bar connecting line 4 adaptation, and the other end is provided with the female 32 with golden finger male 211 adaptation of power panel 21; LED lamp bar group 12 is by the electric connection of lamp bar connecting line 4 with power panel 21.In the particular embodiment, after driving module 2 loads fixed bin 14 completely, golden finger male 211 also inserts female, and under the guide effect of guide groove 144, aiming at without the need to other with the grafting between female of golden finger male 211, drives module 2 to take advantage of a situation and pushes.
Further, the first lens 123 are refractive lenses; Second lens 124 are reflection lens.Certainly, the type of the first lens 123 and the second lens 124 also can be other collocation forms, and as being refractive lenses entirely or being reflection lens entirely, the present invention is in this no limit.The light mixing distance of the first lamp bar 121 is 35mm, and the light mixing distance of the second lamp bar 122 is 15mm, thus, especially, can make full use of existing spare and accessory parts, thus reduce the cost of complete machine when the liquid crystal panel 6 of directly-down liquid crystal display dress is of a size of 42 cun.
Further, reflector plate 13 has and be inclined to set connecting portion (do not indicate) relative with the sidewall of fixed bin 14, and connecting portion connects reflector plate 13 part of laminating first lamp bar 121 installed surface and reflector plate 13 part of laminating the second lamp bar 122 installed surface; Connecting portion forms recess 131 with reflector plate 13 part of laminating the second lamp bar 122 installed surface; The optical difference that connecting portion can reduce the intersection of the first lens 123 light source and the second lens 124 light source is set.
The present invention also provides a kind of liquid crystal indicator, this liquid crystal indicator downward back photo structure as above; Particularly, please refer to Fig. 1 and Fig. 2, and Figure 11 and Figure 12, in one embodiment, this liquid crystal indicator is TV.Be understandable that, this straight liquid crystal indicator can be also display or advertisement machine, and the present invention is in this no limit.The part concrete structure of downward back photo structure with reference to above-described embodiment, can not repeat them here.Particularly, TV also comprises face-piece 5, liquid crystal panel 6, base 7 and underframe 8; Liquid crystal panel 6 and face-piece 5 are fixed on shell 11 after assembling, and underframe 8 is fixed on the lower end of TV, and underframe 8 is fixing to hold TV with base 7.The driving module 2 of this TV is arranged in the shell 11 of backlight module 1, therefore has less thickness.
These are only the preferred embodiments of the present invention; not thereby the scope of the claims of the present invention is limited; every utilize description of the present invention and accompanying drawing content to do equivalent structure or equivalent flow process conversion; or be directly or indirectly used in other relevant technical fields, be all in like manner included in scope of patent protection of the present invention.
Claims (10)
1. a downward back photo structure, is characterized in that, comprises backlight module and drives module; Described backlight module comprises shell, LED lamp bar group, reflector plate and the diffuser plate be fixedly arranged in described shell; Described driving module is electrically connected with described LED lamp bar group, for driving the LED chip of described LED lamp bar group luminous; Described shell comprises base plate, and described base plate is provided with the fixed bin for accommodating described driving module; Described LED lamp bar group comprises the first lamp bar and the second lamp bar that arrange in groups; Described first lamp bar is fixed on described base plate, described second lamp bar is arranged on described fixed bin towards in the one side of described diffuser plate; Described reflector plate described LED lamp bar group of fitting is arranged at the installed surface of described base plate, fixed bin; The LED chip of described first lamp bar is provided with the first lens with described first lamp bar light mixing distance adaptation, and the LED chip of described second lamp bar is provided with the second lens with described second lamp bar light mixing distance adaptation.
2. downward back photo structure as claimed in claim 1, it is characterized in that, described shell also comprises side plate, described fixed bin near described shell one described in side plate install; Described fixed bin comprises a roof and three sidewalls, and described second lamp bar is arranged on described roof; To be enclosed by described fixed bin and described base plate for the space of accommodating described driving module and formed; The corresponding described fixed bin of described side plate is provided with the handling hole for loading and unloading described driving module.
3. downward back photo structure as claimed in claim 2, is characterized in that, described fixed bin be oppositely arranged two described in sidewall be provided with guide groove; Described guide groove is extended to the described sidewall relative with described handling hole from described handling hole; Described handling hole edge is provided with the breach with described guide groove adaptation; The mainboard that described driving module comprises installing plate, power panel and is electrically connected with described power panel; Described power panel and described mainboard are folded and are established and be fixed on described installing plate; Described installing plate is plugged in described guide groove.
4. downward back photo structure as claimed in claim 3, it is characterized in that, described sidewall is formed by described roof bending; Described guide groove is arranged on the junction of described roof and sidewall; Described power panel and described mainboard are between described installing plate and base plate.
5. downward back photo structure as claimed in claim 4, is characterized in that, the sealing plate that described installing plate comprises supporting plate and formed from one end bending of described supporting plate; Described power panel and described mainboard are folded and are established and be fixed on described supporting plate; Described supporting plate is plugged in described guide groove; After described installing plate loads described fixed bin, described sealing plate covers described handling hole.
6. downward back photo structure as claimed in claim 5, it is characterized in that, described installing plate also comprises the guide rail formed from the side bending that described supporting plate is adjacent with described sealing plate; Described guide rail and described guide groove are slidably connected.
7. downward back photo structure as claimed in claim 3, is characterized in that, also comprise lamp bar transfer block and lamp bar connecting line; Described lamp bar transfer block is fixedly mounted on the one side of described roof towards described base plate; One end of described lamp bar transfer block is provided with the contact pin with described lamp bar connecting line adaptation, and the other end is provided with the female with the golden finger male adaptation of described power panel; LED lamp bar group passes through the electric connection of lamp bar connecting line and power panel.
8. downward back photo structure as claimed in claim 1, it is characterized in that, described first lens are refractive lenses; Described second lens are reflection lens.
9. downward back photo structure as claimed in claim 1, is characterized in that, described reflector plate has and be inclined to set connecting portion relative with the sidewall of described fixed bin.
10. a liquid crystal indicator, is characterized in that, comprise as in claim 1 to 9 any one to as described in downward back photo structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510184293.8A CN104879680B (en) | 2015-04-17 | 2015-04-17 | Downward back photo structure and liquid crystal display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510184293.8A CN104879680B (en) | 2015-04-17 | 2015-04-17 | Downward back photo structure and liquid crystal display device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104879680A true CN104879680A (en) | 2015-09-02 |
| CN104879680B CN104879680B (en) | 2017-12-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510184293.8A Expired - Fee Related CN104879680B (en) | 2015-04-17 | 2015-04-17 | Downward back photo structure and liquid crystal display device |
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| CN (1) | CN104879680B (en) |
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| CN105785647A (en) * | 2016-05-06 | 2016-07-20 | 奥英光电（苏州）有限公司 | Liquid crystal display device |
| CN106439748A (en) * | 2016-08-31 | 2017-02-22 | 安徽芯瑞达电子科技有限公司 | PCB module applied to backlight module |
| CN115657369A (en) * | 2022-10-21 | 2023-01-31 | 安徽芯瑞达科技股份有限公司 | Backlight module with refraction type and reflection type lamp strips |
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| US20060092662A1 (en) * | 2004-11-03 | 2006-05-04 | Noh Ji-Whan | Backlight unit and liquid crystal display employing the same |
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| CN105785647A (en) * | 2016-05-06 | 2016-07-20 | 奥英光电（苏州）有限公司 | Liquid crystal display device |
| CN106439748A (en) * | 2016-08-31 | 2017-02-22 | 安徽芯瑞达电子科技有限公司 | PCB module applied to backlight module |
| CN115657369A (en) * | 2022-10-21 | 2023-01-31 | 安徽芯瑞达科技股份有限公司 | Backlight module with refraction type and reflection type lamp strips |
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| Publication number | Publication date |
|---|---|
| CN104879680B (en) | 2017-12-08 |
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