CN103873616A - Display module and mobile communication device - Google Patents
Display module and mobile communication device Download PDFInfo
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- CN103873616A CN103873616A CN201410081552.XA CN201410081552A CN103873616A CN 103873616 A CN103873616 A CN 103873616A CN 201410081552 A CN201410081552 A CN 201410081552A CN 103873616 A CN103873616 A CN 103873616A
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- circuit board
- main circuit
- backlight
- screen
- mobile communication
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Abstract
The invention provides a display module and a mobile communication device comprising the display module, belonging to the field of display techniques, aiming at solving the problem that an interference source on a main circuit board in the existing display module and the existing mobile communication device has a great influence on other signal sources. The display module provided by the invention comprises a display panel, a backlight and a main circuit board which is used for controlling the display panel, wherein the backlight is arranged between the display panel and the main circuit board and the backlight comprises a light source and a circuit board which is used for controlling the light source. The display module is characterized in that the circuit board additionally comprises a shielding layer which is used for shielding signals of the interference source on the main circuit board. The display module and the mobile communication device provided by the invention have the advantage that since the shielding layer is arranged on the backlight to block electromagnetic interference produced by the interference source on the main circuit board in an area behind the backlight, the interference on other signals is reduced.
Description
Technical field
The invention belongs to Display Technique field, be specifically related to a kind of device for mobile communication that shows module and comprise this demonstration module.
Background technology
As shown in Figure 1, device for mobile communication (for example at present, mobile phone) demonstration module generally include backlight, display floater, for controlling the main circuit board 1(FPC of display floater), wherein, display floater comprises the display elements such as the integrated circuit controller 6 being arranged on glass plate 5, color rete; Backlight comprises light source, and for controlling the circuit board 4(FPC of light source), circuit board 4 is arranged between glass plate 5 and main circuit board 1, backlight also comprises light guide plate (not shown in figure 1), and for supporting glue frame 2 and the chase 3 of light guide plate, circuit board 4 and the main circuit board 1 of backlight cooperatively interacted and shown the picture disply of module.
Device for mobile communication (for example at present, mobile phone) developing trend slimming, cause the spacing of internal structure more and more less, while showing the interference source work on module, for example, when the DC-DC of main circuit board 1 (DC/DC) module 11 is worked, the interference signal (line with arrow in Fig. 1 represents) of sending is more and more obvious to mobile phone effect of signals.
In order to reduce the interference source of main circuit board 1 to the interference of mobile phone signal, the general scheme such as parcel that lengthens main circuit board 1 that adopts reduces the diffusion of the interfering line of interference source, but exist main circuit board 1 manufacturing procedure complexity, main circuit board 1 size increase obviously, only can be processed by manpower, the problem such as production efficiency is low; Or also can adopt the method for sticking on screened film in demonstration module front, but this needs the extra manpower that increases carry out hand paste, and taping process easily causes the breakage of components and parts; Meanwhile, the demonstration module space that above method requires is large, causes module size larger.
Summary of the invention
The object of the invention is to solve the interference source on main circuit board in the demonstration module of prior art and device for mobile communication, on the larger problem of other signal source impact, provides a kind of and can reduce demonstration module and the device for mobile communication that interference source disturbs.
Solving the technical scheme that the technology of the present invention problem adopts is a kind of module that shows, comprising: display floater, backlight, for controlling the main circuit board of display floater; Described backlight is arranged between display floater and main circuit board, and described backlight comprises light source and for controlling the circuit board of light source, it is characterized in that, described circuit board also comprises the screen for shielding the interference source signal on main circuit board.
Preferably, described screen is corresponding with the position of described interference source.
Preferably, described screen is copper film.
Preferably, the screen of described circuit board is electrically connected with the ground plane on main circuit board.
Preferably, described screen is electrically connected with the ground plane on main circuit board by the circuit in circuit board.
Preferably, described backlight also comprises light guide plate, and for supporting the chase of light guide plate, described chase is connected with main circuit board Lu Tong district by the conductive fabric that sticks on main circuit board; Described chase is connected with described screen, and described Lu Tong district is connected with the ground plane on main circuit board.
Preferably, described interference source comprises DC-DC module.
Another object of the present invention is to provide a kind of device for mobile communication, and described device for mobile communication comprises above-mentioned demonstration module.
Demonstration module of the present invention and device for mobile communication are by screen is set on backlight, and the electromagnetic interference that the interference source on main circuit board is produced is locked in the region at backlight rear, has reduced the interference to other signal source.
Brief description of the drawings
Fig. 1 is the demonstration module cross-sectional view of prior art.
Fig. 2 shows module cross-sectional view in embodiments of the invention 1.
Fig. 3 is circuit board and main circuit board syndeton schematic diagram in embodiments of the invention 1.
Figure elements label declaration:
1. main circuit board; 2. glue frame; 3. chase; 4. circuit board; 5. glass plate; 6. integrated circuit controller; 7. ground plane; 8. screen; 9. conductive fabric; 10. welding hole; 11. interference sources.
Embodiment
For making those skilled in the art understand better technical scheme of the present invention, below in conjunction with the drawings and specific embodiments, the present invention is described in further detail.
As shown in Figure 2, the invention provides a kind of module that shows, comprising: display floater, backlight, for controlling the main circuit board 1 of display floater; Described backlight is arranged between display floater and main circuit board 1, and described backlight comprises light source and for controlling the circuit board 4 of light source, described circuit board 4 also comprises the screen 8 for shielding interference source 11 signals on main circuit board 1.
Demonstration module of the present invention is by screen 8 is set on backlight, and the electromagnetic interference that the interference source on main circuit board 1 is produced is locked in the region at backlight rear, has reduced the interference to other signal, for example, mobile phone signal is disturbed.As shown in Figure 2, interference signal (use and represent with the line of arrow in figure) can not be through the region at screen 8 places.
Preferably, screen 8 is corresponding with the position of described interference source 11.
Preferably, described interference source 11 comprises DC-DC module.
Should be understood that, if Zone Full has interference source 11 on main circuit board 1,8 of screens can be on backlight enlarged-area until cover whole main circuit boards 1.
Should be understood that, described electromagnetic interference can be electric field, magnetic field, electromagnetic field signal interference, and the present embodiment is taking electric field signal as example introduction.
Preferably, described screen 8 is copper film, deposits preparation by copper.
Should be understood that, described main circuit board 1 can be flexible PCB, is bent into U-shapedly as having flexible main circuit board 1 in Fig. 2, and backlight is arranged at U-shaped inside; Circuit board 4 can be also flexible PCB.
Particularly, display floater comprises the display elements such as the integrated circuit controller 6 being arranged on glass plate 5, color rete.
Described backlight also comprises light guide plate (not shown in Fig. 2), and for supporting chase 3 and the glue frame 2 of light guide plate, glue frame 2 is arranged between main circuit board 1 and circuit board 4; Chase 3 is connected with main circuit board 1 Lu Tong district (not shown on Fig. 2) by the conductive fabric 9 that sticks on main circuit board 1; Chase 2 is connected with screen 8, and Lu Tong district is connected with the ground plane 7 on main circuit board 1.Screen 8 is connected with the ground plane 7 on main circuit board 1 like this, completes ground connection.
In the time showing module group assembling, the golden finger of the drive circuit on backlight 4 is soldered on corresponding main circuit board 1, as shown in Figure 3, simultaneously, the ground wire that the screen of circuit board 48 is drawn is soldered to by welding hole 10 on the ground plane 7 of main circuit board 1, with respect to stick screened film on demonstration module, improve operating efficiency, reduce manually-operated damage.The screen 8 of circuit board 4 is connected on ground plane 7 like this, forms screen 8, has reduced the interference source on main circuit board 1, for example, and the impact of mobile communication signal.
This enforcement provides a kind of device for mobile communication, and this device for mobile communication comprises above-mentioned demonstration module.Owing to showing that module is by screen is set on backlight, the electromagnetic interference that the interference source on main circuit board is produced is locked in the region at backlight rear, has reduced the interference to mobile phone signal.
Be understandable that, above execution mode is only used to principle of the present invention is described and the illustrative embodiments that adopts, but the present invention is not limited thereto.For those skilled in the art, without departing from the spirit and substance in the present invention, can make various modification and improvement, these modification and improvement are also considered as protection scope of the present invention.
Claims (8)
1. show a module, comprising: display floater, backlight, for controlling the main circuit board of display floater; Described backlight is arranged between display floater and main circuit board, and described backlight comprises light source and for controlling the circuit board of light source, it is characterized in that, described circuit board also comprises the screen for shielding the interference source signal on main circuit board.
2. demonstration module as claimed in claim 1, is characterized in that, described screen is corresponding with the position of described interference source.
3. demonstration module as claimed in claim 2, is characterized in that, described screen is copper film.
4. demonstration module as claimed in claim 1, is characterized in that, the screen of described circuit board is electrically connected with the ground plane on main circuit board.
5. demonstration module as claimed in claim 4, is characterized in that, described screen is electrically connected with the ground plane on main circuit board by the circuit in circuit board.
6. demonstration module as claimed in claim 1, is characterized in that, described backlight also comprises light guide plate, and for supporting the chase of light guide plate, described chase is connected with main circuit board Lu Tong district by the conductive fabric that sticks on main circuit board; Described chase is connected with described screen, and described Lu Tong district is connected with the ground plane on main circuit board.
7. demonstration module as claimed in claim 1, is characterized in that, described interference source comprises DC-DC module.
8. a device for mobile communication, is characterized in that, comprises the demonstration module as described in as arbitrary in claim 1-7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410081552.XA CN103873616B (en) | 2014-03-06 | 2014-03-06 | A kind of display module, device for mobile communication |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410081552.XA CN103873616B (en) | 2014-03-06 | 2014-03-06 | A kind of display module, device for mobile communication |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103873616A true CN103873616A (en) | 2014-06-18 |
| CN103873616B CN103873616B (en) | 2016-03-09 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410081552.XA Active CN103873616B (en) | 2014-03-06 | 2014-03-06 | A kind of display module, device for mobile communication |
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| Country | Link |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105828588A (en) * | 2015-04-30 | 2016-08-03 | 维沃移动通信有限公司 | Mobile terminal and device for improving EMC performance of mobile terminal display screen |
| CN106054452A (en) * | 2016-07-11 | 2016-10-26 | 深圳天珑无线科技有限公司 | Liquid crystal module and display |
| WO2019179138A1 (en) * | 2018-03-22 | 2019-09-26 | 京东方科技集团股份有限公司 | Display module and display apparatus |
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| CN1469614A (en) * | 2002-07-19 | 2004-01-21 | 广达电脑股份有限公司 | cell phone |
| CN201945774U (en) * | 2011-02-25 | 2011-08-24 | 陈国锋 | Anti-interference LCM (liquid crystal module) display screen structure |
| CN102385821A (en) * | 2011-11-18 | 2012-03-21 | 深圳市华星光电技术有限公司 | Flat display device, stereo display device and plasma display device |
| CN102707464A (en) * | 2012-05-28 | 2012-10-03 | 深圳市联祥瑞实业有限公司 | Liquid crystal plate backlight bracket with electromagnetic shielding function and liquid crystal display device |
| CN102882995A (en) * | 2011-07-13 | 2013-01-16 | Lg电子株式会社 | Mobile terminal |
| CN203223889U (en) * | 2013-05-06 | 2013-10-02 | 上海鼎为软件技术有限公司 | Display device provided with heat conduction structure and heat conduction structure |
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2014
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Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1469614A (en) * | 2002-07-19 | 2004-01-21 | 广达电脑股份有限公司 | cell phone |
| CN201945774U (en) * | 2011-02-25 | 2011-08-24 | 陈国锋 | Anti-interference LCM (liquid crystal module) display screen structure |
| CN102882995A (en) * | 2011-07-13 | 2013-01-16 | Lg电子株式会社 | Mobile terminal |
| CN102385821A (en) * | 2011-11-18 | 2012-03-21 | 深圳市华星光电技术有限公司 | Flat display device, stereo display device and plasma display device |
| CN102707464A (en) * | 2012-05-28 | 2012-10-03 | 深圳市联祥瑞实业有限公司 | Liquid crystal plate backlight bracket with electromagnetic shielding function and liquid crystal display device |
| CN203223889U (en) * | 2013-05-06 | 2013-10-02 | 上海鼎为软件技术有限公司 | Display device provided with heat conduction structure and heat conduction structure |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105828588A (en) * | 2015-04-30 | 2016-08-03 | 维沃移动通信有限公司 | Mobile terminal and device for improving EMC performance of mobile terminal display screen |
| CN105828588B (en) * | 2015-04-30 | 2018-04-20 | 维沃移动通信有限公司 | A kind of mobile terminal and the device for improving its display screen EMC performances |
| CN106054452A (en) * | 2016-07-11 | 2016-10-26 | 深圳天珑无线科技有限公司 | Liquid crystal module and display |
| WO2019179138A1 (en) * | 2018-03-22 | 2019-09-26 | 京东方科技集团股份有限公司 | Display module and display apparatus |
| US11093006B2 (en) | 2018-03-22 | 2021-08-17 | Beijing Boe Optoelectronics Technology Co., Ltd. | Display module and display device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103873616B (en) | 2016-03-09 |
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