CN201547615U - Direct backlight module - Google Patents

Direct backlight module Download PDF

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Publication number
CN201547615U
CN201547615U CN2009202747023U CN200920274702U CN201547615U CN 201547615 U CN201547615 U CN 201547615U CN 2009202747023 U CN2009202747023 U CN 2009202747023U CN 200920274702 U CN200920274702 U CN 200920274702U CN 201547615 U CN201547615 U CN 201547615U
Authority
CN
China
Prior art keywords
backlight module
lamp source
folding type
type backlight
direct type
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN2009202747023U
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Chinese (zh)
Inventor
王铭禧
洪明泉
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
TPV Display Technology China Co Ltd
Original Assignee
TPV Investment Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by TPV Investment Co Ltd filed Critical TPV Investment Co Ltd
Priority to CN2009202747023U priority Critical patent/CN201547615U/en
Application granted granted Critical
Publication of CN201547615U publication Critical patent/CN201547615U/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

The utility model provides a direct backlight module which comprises a diffusion plate, at least one bending light source, at least two light source fixed seats, at least one printed circuit board, a backboard and a brightness enhancement film, wherein the diffusion plate comprises a light outlet surface and a light inlet surface; the light outlet surface corresponds to the light inlet surface; the bending light sources are regularly arrayed on the side of the light inlet surface of the diffusion plate at intervals; the light source fixed seats are used for fixing the bending light sources; and the printed circuit board is used for providing a power supply to the bending light sources. Therefore, by the arrangement of the bending light sources, the direct backlight module reduces the amount of the light source fixed seats and the volume of the printed circuit board to save space and simplify the manufacturing process.

Description

Direct type backlight module
Technical field
The utility model is about a kind of direct type backlight module, particularly about a kind of direct type backlight module with folding type lamp source.
Background technology
In recent years, traditional cathode-ray tube display (CRT monitor that promptly is commonly called as) is replaced by LCD gradually, main cause is that the amount of radiation that LCD discharges is far smaller than CRT monitor, in addition, LCD is in the existing reduction significantly of this manufacturing cost in several years, and this also is the reason that LCD becomes the main flow in TV or computer screen market gradually.
In general, LCD comprises backlight module and liquid crystal panel two large divisions, and the major function of backlight module is to provide a backlight, uses for liquid crystal panel.In the product of large scale screen, obtain enough brightness in order to make liquid crystal panel, be main application all generally speaking with " direct type backlight module ".See also Fig. 1, Fig. 1 illustrate is the lamp source schematic diagram of direct type backlight module of the prior art.As shown in Figure 1, direct type backlight module can be provided with a plurality of lamps source 13, this lamp source 13 is fixed with a lamp source holder 17 respectively in two ends in each lamp source 13, and makes this direct type backlight module provide a plurality of lamps source 13 luminous required voltages by two printed circuit board (PCB)s 18.So-called straight-down negative promptly is that a plurality of lamps source 13 is parallel on the plane of diffuser plate (not illustrating) below, and those lamp sources 13 can directly be injected light in this diffuser plate.
Yet " a plurality of lamps source 13 " promptly represents the printed circuit board (PCB) 18 of more lamp source holder 17 and more volume, makes this direct type backlight module occupy more space, and needs to waste more assembling man-hour, is unfavorable for the decline of cost.Therefore, under the prerequisite that does not reduce the direct type backlight module briliancy, how reducing the setting of lamp source holder 17, save the direct type backlight module volume inside, effectively reduce and assemble man-hour, is the target that those skilled in the art make great efforts.
The utility model content
The utility model main purpose reduces the setting of lamp source holder under the prerequisite that does not reduce the direct type backlight module briliancy, to save the direct type backlight module volume inside.
To achieve these goals, the utility model provides a kind of direct type backlight module, and this direct type backlight module includes a diffuser plate, at least one folding type lamp source, at least two lamp source holders, at least one printed circuit board (PCB), a backboard and a brightness enhancement film.Wherein, this diffuser plate includes an exiting surface and an incidence surface, and this exiting surface and this incidence surface are in correspondence with each other.The incidence surface side that is arranged at this diffuser plate is arranged on this folding type lamp source rule ground with uniform distances.Those lamp source holders are in order to fix this folding type lamp source.This printed circuit board (PCB) is in order to provide power supply to this folding type lamp source.This backboard is arranged at the outside in this folding type lamp source, in order to ccontaining this folding type lamp source.This brightness enhancement film is positioned at the exiting surface side of this diffuser plate.With this, utilize the setting in this folding type lamp source, make this direct type backlight module reduce the quantity of this lamp source holder and the volume of this printed circuit board (PCB), to save the space and to simplify processing procedure.
Aforesaid direct type backlight module, this direct type backlight module also includes a reflector plate, and this reflector plate is arranged between this folding type lamp source and this backboard.Also include a plurality of fluorescent tube folders on this reflector plate, this fluorescent tube folder includes a clamping part and a base portion, and this clamping part is in order to clamp this folding type lamp source, and this base portion is in order to be fixed on this reflector plate.
Aforesaid direct type backlight module, wherein, the quantity in this folding type lamp source is a plurality of, and those folding type lamp sources are parallel on the same plane, and this plane is parallel with this reflector plate.
Aforesaid direct type backlight module, wherein, those folding type lamp sources be can series, parallel or the shared mode of connection in series-parallel join.
Aforesaid direct type backlight module wherein, also is provided with a diffusion barrier between this brightness enhancement film and this diffuser plate, in order to strengthen the effect of light diffusion.
Aforesaid direct type backlight module, wherein, this folding type lamp source is made of the cold cathode fluorescent lamp pipe.
Aforesaid direct type backlight module, wherein, this folding type lamp source is made of light-emitting diode light bar, and makes this light emitting diode that luminous direction is pointed to this diffuser plate.
Aforesaid direct type backlight module, wherein, this folding type lamp source is syllogic bending, four-part form bending or multisection type bending.
The beneficial effects of the utility model:
With this, the utility model provide direct type backlight module can be under the prerequisite that does not reduce the direct type backlight module briliancy, reduce the setting of lamp source holder, save the direct type backlight module volume inside, effectively reduce assembling man-hour, to reduce manufacturing cost.
Description of drawings
In order to be illustrated more clearly in the technical scheme of the utility model embodiment, the accompanying drawing of required use is done an introduction simply in will describing embodiment below, apparently, accompanying drawing in describing below only is embodiment more of the present utility model, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
The lamp source schematic diagram of the direct type backlight module that provides in the prior art is provided Fig. 1 illustrate;
The explosive view of the direct type backlight module that Fig. 2 A illustrate provides for the utility model;
The folding type lamp source schematic diagram of the direct type backlight module that Fig. 2 B illustrate provides for the utility model;
The fixedly schematic diagram in the folding type lamp source that Fig. 2 C illustrate provides for the utility model;
The folding type lamp source schematic diagram of another embodiment that Fig. 3 illustrate provides for the utility model;
The folding type lamp source schematic diagram of the another embodiment that Fig. 4 illustrate provides for the utility model.
In the accompanying drawing, the list of parts of each label representative is as follows:
<prior art 〉
13: the lamp source; 17: lamp source holder; 18: printed circuit board (PCB);
<the utility model 〉
2: direct type backlight module; 21: backboard; 22,32,42: reflector plate; 23,33,43: folding type lamp source; 231,331,431: the cold cathode fluorescent lamp pipe; 24: diffuser plate; 24A: exiting surface; 24B: incidence surface; 25: diffusion barrier; 26: brightness enhancement film; 27,37,47: lamp source holder; 28: printed circuit board (PCB); 29,39,49: the fluorescent tube folder; 291: clamping part; 292: base portion.
The specific embodiment
In order to be illustrated more clearly in the technical scheme of the utility model embodiment, the accompanying drawing of required use is done an introduction simply in will describing embodiment below, apparently, accompanying drawing in describing below only is embodiment more of the present utility model, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
Please consult Fig. 2 A-2C simultaneously, the explosive view of the direct type backlight module that Fig. 2 A illustrate provides for the utility model, the fixedly schematic diagram in the folding type lamp source that the folding type lamp source schematic diagram of the direct type backlight module that Fig. 2 B illustrate provides for the utility model, Fig. 2 C illustrate provide for the utility model.Shown in Fig. 2 A, this direct type backlight module 2 includes a backboard 21, a reflector plate 22, two folding type lamp sources 23, a diffuser plate 24, a diffusion barrier 25 and a brightness enhancement film 26.Wherein, this diffuser plate 24 includes an exiting surface 24A and an incidence surface 24B, this exiting surface 24A and this incidence surface 24B lay respectively in correspondence with each other the top of this diffuser plate 24 with below.This folding type lamp source 23 is made of the cold cathode fluorescent lamp pipe 231 that syllogic bends.All cold cathode fluorescent lamp pipes 231 in two folding type lamp sources 23 are arranged the incidence surface 24B side be arranged at this diffuser plate 24 with uniform distances regularly, and those folding type lamp sources 23 and all cold cathode fluorescent lamp pipes 231 are parallel on the same plane.This backboard 21 is arranged at the below in those folding type lamp sources 23, and 22 of this reflector plates are arranged between this folding type lamp source 23 and this backboard 21.This backboard 21 is in order to ccontaining those folding type lamp sources 23 and this reflector plate 22.This diffusion barrier 25 is positioned on this diffuser plate 24, in order to strengthen the effect of light diffusion further.This brightness enhancement film 26 is arranged at the exiting surface 24A side the top part of this diffuser plate 24, just places on this diffusion barrier 25, and its purpose increases the bright dipping briliancy of this direct type backlight module 2 at the light-ray condensing that diffusion is come.
Next please contrast Fig. 2 B and Fig. 2 C simultaneously.This direct type backlight module 2 also is provided with three lamp source holders 27 and three printed circuit board (PCB)s 28.Those lamp source holders 27 are separately positioned on the end points place in this folding type lamp source 23, in order to this folding type lamp source 23 is fixing.Those printed circuit board (PCB)s 28 are in order to provide power supply to those folding type lamp sources 23.In addition, except the end points in folding type lamp source 23 is fixing, the place also is provided with fluorescent tube folder 29 in the middle of each cold cathode fluorescent lamp pipe 231, this fluorescent tube folder 29 includes a clamping part 291 and a base portion 292, this clamping part 291 is in order to clamp the cold cathode fluorescent lamp pipe 231 in this folding type lamp source 23, this base portion 292 all is arranged in parallel on this reflector plate 22 all cold cathode fluorescent lamp pipes 231 of this direct type backlight module 2 in order to be fixed on this reflector plate 22.This fluorescent tube folder 29 is fixed the embodiment of this cold cathode fluorescent lamp pipe 231 promptly shown in Fig. 2 C.
With this, utilize the setting in this folding type lamp source 23, make this direct type backlight module 2 reduce the quantity of this lamp source holder 27; Shown in Fig. 2 B, just this direct type backlight module 2 only needs all cold cathode fluorescent lamp pipes 231 to be fixed with three lamp source holders 27; And two folding type lamp source 23 required printed circuit board (PCB)s 28 take smaller volume.So, can save direct type backlight module 2 volume inside, and simplify the processing procedure and the man-hour of assembling, and then reduce the processing procedure cost.
Also have, on the circuit design of direct type backlight module 2, the size and the power of power that can the screen curtain, and allow those folding type lamp sources 23 join with series, parallel or the shared mode of connection in series-parallel, to increase the elasticity on designing.
In addition, the utility model also has other embodiment.See also Fig. 3, the folding type lamp source schematic diagram of another embodiment that Fig. 3 illustrate provides for the utility model.As shown in Figure 3, this direct type backlight module (not illustrating) includes a reflector plate 32, two folding type lamp sources 33, three lamp source holders 37 and a plurality of fluorescent tube folders 39.Wherein, this folding type lamp source 33 is made of the cold cathode fluorescent lamp pipe 331 that four-part form bends, and each cold cathode fluorescent lamp pipe 331 all is fixed on this reflector plate 32 by fluorescent tube folder 39.With this, present embodiment can reach aforesaid effect.
Also have, see also Fig. 4, the folding type lamp source schematic diagram of the another embodiment that Fig. 4 illustrate provides for the utility model.As shown in Figure 4, this direct type backlight module (not illustrating) includes a reflector plate 42, a folding type lamp source 43, two lamp source holders 47 and a plurality of fluorescent tube folders 49.Wherein, this folding type lamp source 43 is made of the cold cathode fluorescent lamp pipe 431 that multisection type bends.With this, present embodiment needs only two lamp source holders 47 just can fix the end points in this folding type lamp source 43, and power supply is provided, and can further save the space.
Certainly, those skilled in the art also can replace with the cold cathode fluorescent lamp pipe in above-mentioned folding type lamp source light emitting diode (Light Emitting Diode, LED) lamp bar, and make this light emitting diode that luminous direction is pointed to this diffuser plate.So also can make this direct type backlight module reach aforesaid effect.
In sum, the utility model provide direct type backlight module can be under the prerequisite that does not reduce the direct type backlight module briliancy, utilize the setting in folding type lamp source, in order to the quantity of minimizing lamp source holder and the volume of printed circuit board (PCB), to save the direct type backlight module volume inside, and the processing procedure and the man-hour of simplifying assembling, and then reduce the processing procedure cost.
The above only is a preferred embodiment of the present utility model, be not so promptly limit claim of the present utility model, the equivalent structure transformation that every utilization the utility model specification and accompanying drawing content are done, or directly or indirectly be used in other relevant technical field, all in like manner be included in the claim of the present utility model.

Claims (10)

1. a direct type backlight module is characterized in that, comprising:
One diffuser plate, this diffuser plate include an exiting surface and an incidence surface, and this exiting surface and this incidence surface are in correspondence with each other;
The incidence surface side that is arranged at this diffuser plate is arranged at least one folding type lamp source, this folding type lamp source rule ground with uniform distances;
At least two lamp source holders, those lamp source holders are in order to fix this folding type lamp source;
At least one printed circuit board (PCB), this printed circuit board (PCB) is in order to provide power supply to this folding type lamp source;
One backboard, this backboard are arranged at the outside in this folding type lamp source, in order to ccontaining this folding type lamp source; And
One brightness enhancement film, this brightness enhancement film are positioned at the exiting surface side of this diffuser plate.
2. direct type backlight module as claimed in claim 1 is characterized in that this direct type backlight module also includes a reflector plate, and this reflector plate is arranged between this folding type lamp source and this backboard.
3. direct type backlight module as claimed in claim 2 is characterized in that, wherein, also include a plurality of fluorescent tube folders on this reflector plate, this fluorescent tube folder includes a clamping part and a base portion, and this clamping part is in order to clamp this folding type lamp source, and this base portion is in order to be fixed on this reflector plate.
4. direct type backlight module as claimed in claim 2 is characterized in that, wherein, the quantity in this folding type lamp source is a plurality of, and those folding type lamp sources are parallel on the same plane.
5. direct type backlight module as claimed in claim 4 is characterized in that, wherein, this plane is parallel with this reflector plate.
6. direct type backlight module as claimed in claim 4 is characterized in that, wherein, those folding type lamp sources are to join with series, parallel or the shared mode of connection in series-parallel.
7. direct type backlight module as claimed in claim 1 is characterized in that, wherein, also is provided with a diffusion barrier between this brightness enhancement film and this diffuser plate, in order to strengthen the effect of light diffusion.
8. direct type backlight module as claimed in claim 1 is characterized in that, wherein, this folding type lamp source is made of the cold cathode fluorescent lamp pipe.
9. direct type backlight module as claimed in claim 1 is characterized in that, wherein, this folding type lamp source is made of light-emitting diode light bar, and makes this light emitting diode that luminous direction is pointed to this diffuser plate.
10. direct type backlight module as claimed in claim 1 is characterized in that, wherein, this folding type lamp source is syllogic bending, four-part form bending or multisection type bending.
CN2009202747023U 2009-12-03 2009-12-03 Direct backlight module Expired - Fee Related CN201547615U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2009202747023U CN201547615U (en) 2009-12-03 2009-12-03 Direct backlight module

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2009202747023U CN201547615U (en) 2009-12-03 2009-12-03 Direct backlight module

Publications (1)

Publication Number Publication Date
CN201547615U true CN201547615U (en) 2010-08-11

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Application Number Title Priority Date Filing Date
CN2009202747023U Expired - Fee Related CN201547615U (en) 2009-12-03 2009-12-03 Direct backlight module

Country Status (1)

Country Link
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103032771A (en) * 2012-12-24 2013-04-10 京东方科技集团股份有限公司 Vertical backlight source and display device
CN104566045A (en) * 2015-01-27 2015-04-29 创维液晶器件(深圳)有限公司 Direct-lit backlight module and assembling method thereof

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103032771A (en) * 2012-12-24 2013-04-10 京东方科技集团股份有限公司 Vertical backlight source and display device
CN103032771B (en) * 2012-12-24 2016-06-15 京东方科技集团股份有限公司 A kind of direct-light-type backlight and display device
CN104566045A (en) * 2015-01-27 2015-04-29 创维液晶器件(深圳)有限公司 Direct-lit backlight module and assembling method thereof

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Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
ASS Succession or assignment of patent right

Owner name: TPV DISPLAY TECHNOLOGY (CHINA) CO., LTD.

Free format text: FORMER OWNER: TOP VICTORY INVESTMENTS LIMITED

Effective date: 20120808

C41 Transfer of patent application or patent right or utility model
COR Change of bibliographic data

Free format text: CORRECT: ADDRESS; FROM: HONG KONG, CHINA TO: 100000 DAXING, BEIJING

TR01 Transfer of patent right

Effective date of registration: 20120808

Address after: 100000, Beijing economic and Technological Development Zone, No. 118, No. 3, No. two, Hai Lu, Beijing

Patentee after: AOC display technology (China) Co., Ltd.

Address before: Room 1023, Harbour City marine center, Tsim Sha Tsui, Hongkong, China

Patentee before: Guanjie Investment Co., Ltd.

CF01 Termination of patent right due to non-payment of annual fee
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20100811

Termination date: 20161203