CN2876829Y

CN2876829Y - Optical display module structure

Info

Publication number: CN2876829Y
Application number: CNU200620004547XU
Authority: CN
Inventors: 郭建忠
Original assignee: Wintek Corp
Current assignee: Wintek Corp
Priority date: 2006-03-08
Filing date: 2006-03-08
Publication date: 2007-03-07
Anticipated expiration: 2016-03-08

Abstract

The utility model is an optical display module structure, which comprises a first electronic component, a second electronic component, a soft printed circuit board and a moulding solidified layer. One end of the soft printed circuit board is electrically connected to the first electronic component, and the other end is electrically connected to the second electronic component. The soft printed circuit board is provided with a bent part between the first and the second electronic components. The moulding solidified layer is formed on the surface of the bent part for fixing its shape. Thereby, the utility model can avoid wear caused by position change of the soft printed circuit board, which will reduce the yield of the optical display product, the optical path displacement of the light source, and the light utilization.

Description

The optical display module structure

Technical field

The utility model is relevant with the optical display product, more detailedly is meant a kind of optical display module structure that improves the lcd products yield.

Background technology

Be to consider with the convenience direction towards frivolous when choosing the optical display Related product in response to the consumer, the dealer drops into substantial contribution and technical research invariably, and the phase can be developed and be had more slimming and light-weighted product.

With the mobile phone is example, the size of its LCD MODULE volume concern product slimming whether.Please cooperate Fig. 1, available liquid crystal display module 1 shown in Figure 2, it comprises a liquid crystal panel 2, a flexible printed wiring board 3, a circuit board 4, a light guide plate 5, a light source and a two-sided adhesive tape 7, wherein, this light source is LED (light emitting diode) lamp 6, and this LED lamp 6 is arranged at flexible printed wiring board 3, the two ends of flexible printed wiring board 3 are electrically connected at liquid crystal panel 2 and circuit board 4 respectively, and this double sticky tape 7 links this light guide plate 5 and flexible printed wiring board 3.

Yet, in the test process after assembling, the frequent light of finding that LED lamp 6 is produced is not fully injected light guide plate 5, cause the usefulness utilization factor of light to reduce, probing into its reason finds, except may being the assembling and positioning undesirable element of LED lamp 6, still may be that flexible printed wiring board 3 causes, this is because flexible printed wiring board 3 tool pliabilities own, when it is bent, promptly can produce the bounce that flexible printed wiring board 3 is replied, in bounce during greater than the clinging power of double sticky tape 7, flexible printed wiring board 3 can't adhere well to the shady face 5b of light guide plate 5 really, as shown in Figure 2, it is effectively fixing that this situation not only causes flexible printed wiring board 3 and circuit board 4 to obtain, and easier and other member collides mutually, so that produce the possibility of wearing and tearing, cause the LED lamp 6 of aiming at light guide plate 5 incidence surface 5a to produce off normal, light is dispersed easily, can't effectively enter light guide plate 5, and then cause the utilization ratio of light significantly to reduce, and influence the life-span and the quality of product.

Moreover, because the viscose glue of double sticky tape 7 is subjected to environmental factor easily as the influence of temperature, humidity and time etc., and the generation spoilage problems, and be subjected to the influence of flexible printed wiring board 3 bounces, make this LCD MODULE 1 easily under long-term use, its flexible printed wiring board 3 relative light guide plate 5 produce break-off, in view of this, this case creator thinks funiculus through detailed, and the long-pending research and development experience of being engaged in Related product for many years, and generation of the present utility model is arranged eventually.

The utility model content

Fundamental purpose of the present utility model is to provide a kind of optical display module structure, it is the moulding cured layer that utilizes the moulding ability of a tool, with the required shape of this flexible printed wiring board of effective location,, and help the product yield to promote by structure steadiness with the reinforcement display module.

Edge is to reach above-mentioned purpose, a kind of optical display module structure provided by the utility model includes one first electronic package, one second electronic package, one flexible printed wiring board and a moulding cured layer, this flexible printed wiring board one end electrically connects this first electronic package, the other end electrically connects this second electronic package, this flexible printed wiring board forms a kink between this first electronic package and this second electronic package, this moulding cured layer is consolidated in this kink, in order to fix this kink shape, by this, flexible printed wiring board can not be offset the yield that reduces optics demonstration product because of shift in position causes the light-emitting area of LED lamp and the optical path of light guide plate incidence surface.

Description of drawings

Fig. 1 is the schematic side view of available liquid crystal display module structure;

Fig. 2 is the bad schematic side view of double sticky tape adhesion of available liquid crystal display module structure;

Fig. 3 is the synoptic diagram of the utility model one preferred embodiment;

Fig. 4 is the synoptic diagram of another preferred embodiment of the utility model;

Fig. 5 is the schematic side view of the another preferred embodiment of the utility model;

Fig. 6 is the utility model schematic side view of a preferred embodiment again.

[primary clustering symbol description]

10 liquid crystal display device module structures

12 liquid crystal panel 12a top glass substrate

The 12b lower glass substrate

14 circuit board 14a conducting end

16 flexible printed wiring board 16a outside surfaces

16b inside surface 161 kinks

18 backlight modules

20 moulding cured layer 20a setting portions

22 LED lamp 22a light-emitting areas

24 light guide plate 24a incidence surfaces

The 24b shady face

26 blooming groups

30 liquid crystal display device module structures

32 flexible printed wiring board 32a inside surfaces

32b outside surface 321 kinks

34 light guide plate 34a shady faces

36 moulding cured layer 36a setting portions

The 36b extension

38 circuit boards

40 double sticky tapes

Embodiment

See also shown in Figure 3, it is the optical display module structure of the utility model one preferred embodiment, aforementioned optical display module structure is a liquid crystal display device module structure 10, it includes a liquid crystal panel 12, a circuit board 14, a flexible printed wiring board 16, a backlight module 18 and a moulding cured layer 20, wherein:

This liquid crystal panel 12 has a top glass substrate 12a, a lower glass substrate 12b and is sealed in liquid crystal material between this two glass substrate 12a, 12b (figure does not show).

Various electronics spare part is carried in embedding on this circuit board 14, and has a conducting end 14a.

This flexible printed wiring board 16 is the film that an insulating material is made, tool pliability own, it includes an outside surface 16a and an inside surface 16b, these flexible printed wiring board 16 1 ends and this liquid crystal panel 12 electrically connect, and the other end is that the conducting end 14a connection of connector (figure does not show) for this circuit board 14 can be set.When assembling, this flexible printed wiring board 16 is bent, by so that this circuit board 14 is set at this liquid crystal panel 12 belows, reaching the purpose of dwindling the LCD MODULE volume and saving the space, aforementioned flexible printed wiring board 16 also forms a kink 161 in the bending place.

This backlight module 18 is located between this liquid crystal panel 12 and this circuit board 14, include a LED lamp 22, one light guide plate 24 and a blooming group 26, this LED lamp 22 is located at the inside surface 16b of this flexible printed wiring board 16, and has a light-emitting area 22a, this light guide plate 24 is arranged at this liquid crystal panel 12 belows, it has an incidence surface 24a in the face of this light-emitting area 22a, light guide plate 24 is a shady face 24b in the face of the Shu face of this flexible printed wiring board 16 inside surface 16b, the light guiding that this light guide plate 24 can be sent this LED lamp 22 turns to and this liquid crystal panel 12 of directive, in addition, between this lower glass substrate 12b and this light guide plate 24, be provided with this blooming group 26, it includes diffusion sheet, blooming pieces such as blast sheet, and the light that this light guide plate 24 is derived is spread and is condensed, to reach briliancy and the inhomogeneity purpose that improves liquid crystal panel 12 required backlights.

This moulding cured layer 20 was a moulding material that exists with uncured form originally, be to use thermohardening type material (as: thermosetting epoxy resin) in the present embodiment, it is bent at flexible printed wiring board 16, and when the inside surface 16b of flexible printed wiring board 16 presses close to the shady face 24b of light guide plate 24, see through the outside surface 16a that the mode that applies is attached to these kink 161 places, follow-uply make this thermohardening type material cured through a heating schedule, form a 20a of setting portion according to this, as shown in Figure 3, the 20a of this setting portion one lateral margin is near the apical margin of this kink 161, another lateral margin of the 20a of setting portion is then near the root edge of this kink 161, the location that so will make these kink 161 shapes be subjected to this moulding cured layer 20, circuit board 14 location that reach flexible printed wiring board 16 and connect really, and then avoid running foul of each other and cause wearing and tearing with other member, and inject light guide plate 24 effectively for the luminous energy that LED lamp 22 is sent, make the light source of LED lamp 22 fully to be utilized, the briliancy of liquid crystal display product also will promote relatively.

Other one carry be, the material of above-mentioned moulding cured layer 20 also can use other moulding material to reach identical effect, similarly be to pass through by the UV rayed, and be the UV curing type material (as: the UV glue material that acryl is) that solidifies, and for example be added with the glue material of rigidizer etc.

Please continue liquid crystal display mode block structure 30 with reference to another preferred embodiment of the utility model shown in Figure 4, can more firmly be attached at the shady face 34a of light guide plate 34 for the inside surface 32a that makes flexible printed wiring board 32, moulding cured layer 36 in the present embodiment includes a 36a of setting portion that adheres to kink 321, an and extension 36b who continues the 36a of this setting portion, this extension 36b is the coated setting along this flexible printed wiring board 32 outside surface 32b, and connect and extend near circuit board 38, by this, moulding cured layer 36 can this flexible printed wiring board 32 of more efficiently location.

Certainly, liquid crystal display mode block structure 10,30 in the various embodiments described above, can be between light guide plate 24 and flexible printed wiring board 16, light guide plate 34 and flexible printed wiring board 32, set up double sticky tape 40 respectively with each other bonding, shown in the 5th, six figure, and cooperate the moulding cured

layer

20,36 of this case, and more can effectively locate flexible printed

wiring board

16,32, to reach the effect of dual location.

From the above, moulding cured layer 20, the 36 of the present utility model flexible printed

wiring board

16,32 of effectively finalizing the design, break away to reduce flexible printed

wiring board

16,32 relative

light guide plate

24,34, and cooperate setting up of double sticky tape 40, more be formed with dual locating effect; Be different from aforementioned available liquid crystal display module structure 1, only, be not subjected to Effect of Environmental, the bad disappearance in location of deriving and do not reach double sticky tape really because of adhering easily with the part of double sticky tape 7 (with reference to Fig. 1, Fig. 2) cementation flexible printed wiring board 3.

The above is a preferable possible embodiments of the present utility model, changes so use the equivalent structure that the utility model instructions and claim do such as, ought to be included in the claim of the present utility model.

Claims

1. optical display module structure is characterized in that including:

One first electronic package;

One second electronic package;

One flexible printed wiring board, one end of this flexible printed wiring board and this first electronic package electrically connect, the other end and this second electronic package electrically connect, and this flexible printed wiring board is bent to form a kink between this first electronic package and this second electronic package; And

One moulding cured layer, this moulding cured layer are to be coated with the kink that solidifies in this flexible printed wiring board for moulding curing materials.

2. optical display module structure as claimed in claim 1 is characterized in that, described this moulding cured layer has a setting portion, and this setting portion is provided with along the kink surface of this flexible printed wiring board.

3. optical display module structure as claimed in claim 2 is characterized in that, described this moulding cured layer has the extension of this setting portion that continues, and this extension stretches near this second electronic package.

4. as claim 1,2 or 3 described optical display module structures, it is characterized in that described this moulding cured layer is that the thermohardening type material is made.

5. as claim 1,2 or 3 described optical display module structures, it is characterized in that described this moulding fixed bed is that UV curing type material is made.

6. as claim 1,2 or 3 described optical display module structures, it is characterized in that described this moulding cured layer is that to be added with the glue material of rigidizer made.

7. as claim 1,2 or 3 described optical display module structures, it is characterized in that, comprise between this first electronic package and this second electronic package and be provided with a backlight module, this backlight module has a light guide plate and a two-sided adhesive tape, this double sticky tape one side is pasted with this light guide plate, and another side and this flexible printed wiring board are pasted.

8. optical display module structure as claimed in claim 1 is characterized in that, described this first electronic package is a liquid crystal panel.

9. optical display module structure as claimed in claim 1 is characterized in that, described this second electronic package is a circuit board.