CN2760603Y - Part flush type ultra-thin liquid crystal display module - Google Patents
Part flush type ultra-thin liquid crystal display module Download PDFInfo
- Publication number
- CN2760603Y CN2760603Y CN 200420095919 CN200420095919U CN2760603Y CN 2760603 Y CN2760603 Y CN 2760603Y CN 200420095919 CN200420095919 CN 200420095919 CN 200420095919 U CN200420095919 U CN 200420095919U CN 2760603 Y CN2760603 Y CN 2760603Y
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- China
- Prior art keywords
- circuit board
- pcb
- electronic component
- liquid crystal
- crystal display
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- Expired - Lifetime
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Abstract
The utility model discloses a part embedded type ultrathin liquid crystal display module. An electronic component which has the highest height is arranged on an FPC flexible circuit board, the corresponding position of a PCB printed circuit board is not vacant. Because an electronic component which has the greatest influence on the thickness of LCM is not welded on the PCB printed circuit board and is welded on the flexible circuit board, and the position corresponding to the electronic component which has the highest height of the PCB printed circuit board is not vacant, therefore the thickness of the LCM is reduced by the thickness of one PCB printed circuit board. In point of the design of a complete machine, the thickness reduction of the PCB printed circuit board is simple in technology and can not increase cost.
Description
[technical field]:
The utility model relates to a kind of structure and method for designing thereof of LCD MODULE.
[background technology]:
Along with LCD MODULE (LCM) widespread use of every field in modern society, people have higher requirement to the thickness of original LCM, require the thickness of LCM thin as far as possible.Therefore, in LCM, need to adopt the low electronic component of highly trying one's best, thin PCB and FPC, thin backlight circuit etc. as far as possible as far as possible, but the thickness of LCM still difficult with the restriction that overcomes the electronic component height, be difficult to break through.
As Fig. 1-shown in Figure 4, traditional LC M is usually by main screen 1, backlight circuit 2, FPC flexible circuit board 3, PCB printed circuit board (PCB) 4, inferior screen 5, electronic component and other annex constitute, electronic component is welded on the PCB usually, often high electronic component exceeds time screen a lot, thereby the integral thickness of LCM is very big.In each electronic component, the minimum constructive height that existing connector 6 can reach is 0.9mm, still is the highest in each electronic component, and LCM thickness is played critical influence.As Fig. 9, shown in Figure 11, adopt common design, part all is placed on the PCB, the height of connector adds the height that the encapsulation nation of IC7 is fixed on (COF) on the flexible circuit board like this, cause the integral thickness of LCM too thick, there is interference the installation back with casing, and is pressing flexibility to cover crystalline substance, influences the operate as normal of LCM.
After the LCM structural design was finished, sample presentation trial assembly casing if having indivedual high elements and casing to interfere, caused the sample presentation failure; Must employ great amount of manpower and material resources for this reason and attempt in all its bearings addressing this problem, but final effect is unsatisfactory.So not only waste resource to a great extent, also postponed the progress of project.
[utility model content]:
The purpose of this utility model will overcome above-mentioned weak point of the prior art exactly, and a kind of LCM construction design method and structure that as far as possible reduces the height of electronic component to the influence of its integral thickness is provided.
The utility model proposes the embedded ultra-thin liquid crystal display module of a kind of part for this reason, comprise electronic component, PCB printed circuit board (PCB), FPC flexible circuit board, described PCB printed circuit board (PCB), the overlapping setting of FPC flexible circuit board, highly the highest electronic component is arranged on the described FPC flexible circuit board in the described electronic component, and the relevant position of described PCB printed circuit board (PCB) is provided with clearance position.
The embedded ultra-thin liquid crystal display module of above-mentioned part, height is arranged on the described FPC flexible circuit board greater than the electronic component of a PCB P.e.c. plate thickness in the described electronic component, and the relevant position of described PCB printed circuit board (PCB) is provided with clearance position.Described clearance position area is slightly larger than described electronic component vertical projection area.Preferably, described clearance position is monolateral greater than more than the monolateral 0.3mm of described electronic package size.
Highly the highest electronic component comprises connector in the described module, is arranged on the described FPC flexible circuit board, and the relevant position is provided with clearance position on the described PCB printed circuit board (PCB).Described clearance position area is slightly larger than described connector vertical projection area.Preferably, described clearance position is monolateral greater than more than the monolateral 0.3mm of described connector package dimension.
Adopt above technical scheme of the present utility model, its beneficial effect that brings is:
Because will the electronic component of LCM thickness effect maximum be welded on the PCB, and be welded on the flexible circuit board, and empty avoiding on the PCB P.e.c. Board position of the highest electronic component weld correspondence, LCM thickness reduces a PCB thickness; The reduction of this PCB thickness, for entire machine design, effect is very obvious, and technology is simple, easily realizes, can not cause the increase of cost again.
[description of drawings]:
Fig. 1 is a traditional LC M structure main screen synoptic diagram;
Fig. 2 is the lateral plan one of traditional LC M structure;
Fig. 3 is the lateral plan two of traditional LC M structure;
Fig. 4 is the structural representation that the PCB of traditional LC M cooperates with FPC;
Fig. 5 is the utility model LCM structure main screen synoptic diagram;
Fig. 6 is the utility model LCM texture edge synoptic diagram one;
Fig. 7 is the utility model LCM texture edge synoptic diagram two;
Fig. 8 is the structural representation that the PCB of the utility model LCM cooperates with FPC;
Fig. 9 is the PCB structural representation of traditional LC M;
Figure 10 is the PCB structural representation of the utility model LCM;
Figure 11 is the FPC structural representation of traditional LC M;
Figure 12 is the FPC structural representation of the utility model LCM.
[embodiment]:
Also in conjunction with the accompanying drawings the utility model is described in further detail below by specific embodiment.
Embodiment one: shown in Fig. 5-8, LCM structure of the present utility model is mainly by main screen 1, backlight circuit 2, and FPC flexible circuit board 3, PCB printed circuit board (PCB) 4, inferior screen 5, electronic component and other annex constitute, and connects by welding or hot pressing between them.Wherein electronic component comprises connector 6, and the minimum constructive height of existing connector is 0.9mm.Adopt common design, part all is placed on the PCB, and the height of connector adds the height that the encapsulation nation of IC7 is fixed on (COF) on the flexible circuit board like this, cause the integral thickness of LCM too thick, there is interference the installation back with casing, and is pressing COF, influences the operate as normal of LCM; For this connector is not welded on the PCB, and be welded on the FPC of main screen, LCM thickness reduces a PCB thickness.
As shown in figure 10, this PCB has assembled main electronic component and the electronic circuit of LCM, is the core of realizing the drive controlling of LCM demonstration.During design PCB external form, determine that connector is the part of influence assembling, determines the position of connector on PCB.After the position was determined well, the size of empty avoiding position was determined in encapsulation according to part, and the empty avoiding position dimension is monolateral than more than the monolateral big 0.3mm of part package dimension, requires just can determine external form and the size of PCB again in conjunction with other.
As shown in figure 12, the effect of this FPC is that main screen, PCB, connector (connecting time screen) all are electrically connected, and plays the effect of a media.Determine external form and telltale mark point or the pilot hole of FPC according to the external form of above-mentioned PCB, the position of connector on PCB during then according to common design, vertical projection is to FPC, determine the position of connector on FPC, be designed for the pad (PADS) of solder connector at this place, in conjunction with other general external form and size that requires to determine FPC.
The connector generalized case is the highest among the LCM.Other subelements also can be taked this mode.Because LCM has certain thickness, some part is welded on the thickness that can not exceed LCM on the PCB, and high part is welded on the thickness that can exceed LCM on the PCB, and high part is taked this embedded mode, then can guarantee the thickness of LCM; All parts all design according to above-mentioned requirements, then can assemble out a ultra-thin LCM according to telltale mark point or pilot hole again.
This programme can be used for single screen LCD MODULE equally.
Embodiment two: be with the difference of last example, determine earlier this position vertical projection to the PCB printed circuit board (PCB), determine the empty avoiding position on the PCB, and connector to be welded on the FPC correct position of the highest element connector on the FPC flexible circuit board.
Claims (7)
1, the embedded ultra-thin liquid crystal display module of a kind of part, comprise electronic component, PCB printed circuit board (PCB), FPC flexible circuit board, described PCB printed circuit board (PCB), the overlapping setting of FPC flexible circuit board, it is characterized in that: highly the highest electronic component is arranged on the described FPC flexible circuit board in the described electronic component, and the relevant position of described PCB printed circuit board (PCB) is provided with clearance position.
2, the embedded ultra-thin liquid crystal display module of part as claimed in claim 1, it is characterized in that: height is arranged on the described FPC flexible circuit board greater than the electronic component of a PCB P.e.c. plate thickness in the described electronic component, and the relevant position of described PCB printed circuit board (PCB) is provided with clearance position.
3, the embedded ultra-thin liquid crystal display module of part as claimed in claim 1 or 2, it is characterized in that: highly the highest electronic component comprises connector in the described module, be arranged on the described FPC flexible circuit board, the relevant position is provided with clearance position on the described PCB printed circuit board (PCB).
4, the embedded ultra-thin liquid crystal display module of part as claimed in claim 3 is characterized in that: described clearance position area is slightly larger than described connector vertical projection area.
5, the embedded ultra-thin liquid crystal display module of part as claimed in claim 4 is characterized in that: described clearance position is monolateral greater than more than the monolateral 0.3mm of described connector package dimension.
6, the embedded ultra-thin liquid crystal display module of part as claimed in claim 1 or 2 is characterized in that: described clearance position area is slightly larger than described electronic component vertical projection area.
7, the embedded ultra-thin liquid crystal display module of part as claimed in claim 6 is characterized in that: described clearance position is monolateral greater than more than the monolateral 0.3mm of described electronic package size.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420095919 CN2760603Y (en) | 2004-11-26 | 2004-11-26 | Part flush type ultra-thin liquid crystal display module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420095919 CN2760603Y (en) | 2004-11-26 | 2004-11-26 | Part flush type ultra-thin liquid crystal display module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2760603Y true CN2760603Y (en) | 2006-02-22 |
Family
ID=36082807
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420095919 Expired - Lifetime CN2760603Y (en) | 2004-11-26 | 2004-11-26 | Part flush type ultra-thin liquid crystal display module |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2760603Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103295478A (en) * | 2012-02-29 | 2013-09-11 | 株式会社东芝 | Video display device and illuminating device |
-
2004
- 2004-11-26 CN CN 200420095919 patent/CN2760603Y/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103295478A (en) * | 2012-02-29 | 2013-09-11 | 株式会社东芝 | Video display device and illuminating device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20141126 Granted publication date: 20060222 |