CN102053403A - Liquid crystal display module - Google Patents

Liquid crystal display module Download PDF

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Publication number
CN102053403A
CN102053403A CN2010105413958A CN201010541395A CN102053403A CN 102053403 A CN102053403 A CN 102053403A CN 2010105413958 A CN2010105413958 A CN 2010105413958A CN 201010541395 A CN201010541395 A CN 201010541395A CN 102053403 A CN102053403 A CN 102053403A
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CN
China
Prior art keywords
circuit board
bearing frame
lcd module
backboard
fixture
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Granted
Application number
CN2010105413958A
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Chinese (zh)
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CN102053403B (en
Inventor
林岳锋
庄宗宪
郑崇孚
沈昌和
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AU Optronics Corp
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AU Optronics Corp
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Priority to CN201010541395A priority Critical patent/CN102053403B/en
Publication of CN102053403A publication Critical patent/CN102053403A/en
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Publication of CN102053403B publication Critical patent/CN102053403B/en
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Abstract

The invention discloses a liquid crystal display module comprising a back board, a backlight module, a load bearing frame, a liquid crystal display panel, a printed circuit board, a fixed piece and a gasket, wherein the load bearing frame is provided with a top and a bottom, the bottom is opposite to the top and faces to the back board; the printed circuit board is arranged on the top of the load bearing frame and provided with a first surface and a second surface, the second surface is opposite to the first surface and faces to the load bearing frame, and the printed circuit board is provided with a grounding area arranged on the second surface; the fixed piece penetrates through the load bearing frame and connects with the loading bearing frame and the back board; and the gasket supports against the part between the grounding area of the printed circuit board and the fixed piece, thereby a conductive path from the grounding area, the gasket and the fixed piece to the back board is formed.

Description

Liquid crystal display device module
Technical field
The invention relates to a kind of LCD MODULE, and particularly relevant for a kind of LCD MODULE that is easy to slimming.
Background technology
Existing liquid crystal display device module comprises the backlight module that is positioned on backboard (back bezel) upper surface, is positioned at the display panels on the backlight module, flexible circuit board (the flexible printed circuit that is connected with display panels, FPC) and the drive circuit board that is connected with flexible circuit board (printed circuit board, PCB).Generally speaking, for prevent electromagnetic interference (EMI) (electromagnetic interference, EMI) problem produces, the deviser often electrically connects drive circuit board and backboard, so that driving circuit plate earthing and avoid the problem generation of electromagnetic interference (EMI).
In the prior art, a kind of mode of configuration driven circuit board such as following: drive circuit board is disposed at the backboard lower surface, and then makes the driving circuit plate earthing by locking part electrically connects drive circuit board and backboard.Yet under this configuration mode, the flexible circuit board that is connected with drive circuit board and display panels need be walked around the backlight module on backboard and the backboard, and makes the required length of flexible circuit board increase, and then makes the material cost of flexible circuit board increase.In addition, under this configuration mode, flexible circuit board needs quilt complications repeatedly to be connected with the drive circuit board that is positioned at the backboard lower surface, and makes the probability that damage takes place flexible circuit board increase.
The mode of another kind of configuration driven circuit board such as following: drive circuit board is disposed at the backlight module side, and then makes the driving circuit plate earthing by locking part electrically connects drive circuit board and backboard.Yet under this configuration mode, because drive circuit board is the side that is disposed at backlight module, so the external form of drive circuit board size can produce restriction to the thickness of LCD MODULE, and is unfavorable for the slimming of liquid crystal display device module.In addition, flexible circuit board need be walked around a wherein edge and being connected with drive circuit board of backlight module, and this action also can make the impaired probability of flexible circuit board improve, and the assembling yield of liquid crystal display device module is descended.
In above-mentioned dual mode, drive circuit board all is to lock on backboard by locking part, so the problem of (peeling) takes place to peel off with drive circuit board liquid crystal display device module flexible circuit board when carrying out vibration-testing (vibration test) easily.Hold above-mentionedly, how to make drive circuit board come ground connection, but do not influence the slimming and the packaging qualification rate of liquid crystal display device module, be one of problem that present developer faced in fact by backboard.
Summary of the invention
The invention provides a kind of LCD MODULE, the arrangements of components mode in this LCD MODULE is beneficial to the slimming of LCD MODULE.In addition, liquid crystal display mode block cost of the present invention is lower and be difficult for having flexible circuit board and drive circuit board to peel off the problem of (peeling).
The present invention proposes a kind of LCD MODULE, comprises backboard, backlight module, bearing frame, display panels, circuit board, fixture and liner.Backlight module is disposed on the backboard.Bearing frame is disposed on the backboard and around backlight module, and bearing frame has the top and with respect to the bottom at top, wherein bottom faces toward back plate.Display panels is arranged at the backlight module top, and the edge of the top breasting display panels of bearing frame.Circuit board is arranged on the top of bearing frame, and circuit board has first surface and with respect to the second surface of first surface, and second surface is towards bearing frame, and circuit board has the access area and is positioned on the second surface.Fixture passes bearing frame, and connects bearing frame and backboard.Liner abuts against between the access area and fixture of circuit board, to constitute by access area, liner, the fixture conductive path to backboard.
Based on above-mentioned, LCD MODULE of the present invention is by circuit board being arranged on the top of bearing frame, and the conductive path that constitutes by access area, liner, fixture, backboard is with circuit board ground connection, make LCD MODULE of the present invention be easy to slimming and be difficult for to produce electromagnetic interference (EMI) (electromagnetic interference, EMI) and flexible circuit board and drive circuit board peel off the problem of (peeling).In addition, because of circuit board is to be bearing on the top of bearing frame of carrying display panels,, and make the material cost of electric connection part effectively to reduce so that its length of electric connection part of connecting circuit plate and display panels does not need is oversize.
For above-mentioned feature and advantage of the present invention can be become apparent, embodiment cited below particularly, and cooperate appended graphic being described in detail below.
Description of drawings
Fig. 1 is the three-dimensional explosive view of the LCD MODULE of one embodiment of the invention;
Fig. 2 is the LCD MODULE diagrammatic cross-section along hatching line I-I of Fig. 1 ' painted;
Fig. 3 is the LCD MODULE and the external connection module synoptic diagram of one embodiment of the invention.
[main element symbol description]
100: LCD MODULE
110: backboard
110a: the backboard back side
110b: backboard side
120: backlight module
122: light guide plate
124: light-emitting component
130: bearing frame
130a: bearing frame top
130b: bearing frame bottom
140: display panels
150: circuit board
150a: the first surface of circuit board
150b: the second surface of circuit board
152: the access area
160: electrically connect part
170: fixture
172: bolt
172a: fixture contact site (bolt head)
172b: bolt branch
174: nut
180: liner
190: preceding frame
192: bolster
200: external connection module
210: guidance panel
W: width of circuit board
D: display panels thickness
S: external connection module border width
R: zone
H: perforation
Embodiment
Fig. 1 is the LCD MODULE 100 three-dimensional explosive views of one embodiment of the invention, and Fig. 2 is along LCD MODULE 100 diagrammatic cross-sections of hatching line I-I of Fig. 1 ' painted.Please be simultaneously with reference to Fig. 1 and Fig. 2, the LCD MODULE 100 of present embodiment comprises backboard 110, backlight module 120, bearing frame 130, display panels 140, circuit board 150, fixture 170 and liner 180.
Backboard 110 mainly is the usefulness that is used for carrying and protecting the element on it.Backboard 110 employed materials are good with the material that tool excellent in mechanical properties, high heat pass coefficient and favorable conductive character, for example stainless steel, tinplate or other suitable material.
Backlight module 120 is disposed on the backboard 110.In the present embodiment, backlight module 120 can comprise light guide plate 122 and light-emitting component 124, as shown in Figure 2.What deserves to be mentioned is that the same side that the light-emitting component of present embodiment 124 and circuit board 150 are positioned at light guide plate 122 to be saving configuration space, and make the LCD MODULE 100 of present embodiment meet the design requirement of narrow frame.In addition, backlight module 120 also can comprise further that optical elements (not illustrating) such as diffuser plate, optical diaphragm group are to optimize the optical characteristics of LCD MODULE 100.In the present embodiment, the material of light guide plate 122 for example is acryl (MMA, PMMA), and light-emitting component 124 for example is light-emitting diode light bar (LED light bar), but the present invention is not as limit.
Bearing frame 130 is disposed on the backboard 110 and around backlight module 120, and bearing frame 130 has top 130a and with respect to the bottom 130b at top, wherein bottom 130b is towards backboard 110, as shown in Fig. 1 and Fig. 2.Bearing frame 130 mainly is the usefulness that is used for carrying display panels 140, and its material can be plastics or other suitable material.
Display panels 140 is arranged at backlight module 120 tops, and the edge of the top 130a breasting display panels 140 of bearing frame 130.In other words, display panels 140 is firmly to be arranged at backlight module 120 tops by the top 130a that bears against bearing frame 130.In the present embodiment, display panels 140 for example be vertical alignment-type liquid crystal display panel, to the two-d display panel of row twist mode display panels or other kind.
Circuit board 150 is arranged on the top 130a of bearing frame 130.Circuit board 150 has first surface 150a and with respect to the second surface 150b of first surface 150a, wherein second surface 150b is towards bearing frame 130.In other words, the circuit board 150 of present embodiment is by bearing against the top 130a of bearing frame 130 with the most of area of its second surface 150b, and makes on its top 130a that is fixed on bearing frame 130.In addition, circuit board 150 has access area 152, and access area 152 for example is a ground mat, promptly has the metallic pad (as the naked copper connection pad) that exposes, for the usefulness of ground connection.The second surface 150b that this access area 152 is positioned at circuit board 150 goes up and towards bearing frame 130, in order to the setting of follow-up conductive path.In the present embodiment, circuit board 150 for example needs the circuit board of ground connection for source electrode drive circuit plate, gate driver circuit plate or other.
Fixture 170 passes bearing frame 130, and connects bearing frame 130 and backboard 110.In the present embodiment, fixture 170 more can have contact site 172a and exposes to bearing frame 130.For example, fixture 170 can comprise bolt 172 (screw bolt), and bolt 172 has head 172a and exposes to bearing frame 130, with as contact site 172a.In more detail, the 172b of branch that bolt (screw bolt) can be divided into head 172a and be connected with head 172a, wherein head 172 does not pass the perforation H in the bearing frame 130 and exposes to the top 130a of bearing frame 130, and the 172a of branch passes the perforation H of bearing frame 130.
In addition, fixture 170 can comprise nut 174 (screw nut) further, and this nut 174 (screw nut) is fixed on the backboard 110, and bolt 172 locks on the nut 174.Say that further the nut 174 that is fixed on the backboard 110 can be sealed with the bolt that passes bearing frame 130 perforation H (screw bolt) 172a of branch.Thus, bearing frame 130 just can be connected with backboard 110 by fixture 170.
Liner 180 abuts against between the contact site 172a of the access area 152 of circuit board 150 and fixture 170, to constitute by access area 152, liner 180, fixture 170 conductive path to backboard 110.That is to say, can bear against the top 130a of bearing frame 130 at the circuit board 150 of present embodiment, and then see through access area 152, liner 180, fixture 170 and reach ground connection to the conductive path of backboard 110, and do not need circuit board 150 placed the back side 110a of backboard 110 and cause and electrically connect part 160 required length and increase, and then make the material cost that electrically connects part 160 improve.In addition, under above-mentioned configuration mode, also do not need circuit board 150 is placed 110b place, side near backboard 110, and the width W that makes circuit board 150 causes restriction to the thinning of display panels 140 thickness D.In the present embodiment, the main function of liner 180 is as access area 152 and 170 bridges of reaching electric connection of fixture, so liner 180 can be any element with good conductor, for example conductive tape etc.
The LCD MODULE 100 of present embodiment can comprise further that electrically connecting part 160 is electrically connected between display panels 140 and the circuit board 150.For example, electrically connect part 160 and can be flexible circuit board (flexible printed circuit, FPC), the data line that electrically connects part 160 1 ends and display panels 140 electrically connects, and the other end and circuit board 150 electrically connect, and drive display panels 140 so that circuit board 150 can see through electric connection part 160.What deserves to be mentioned is that in the present embodiment, access area 152 is the second surface 150b that are disposed at circuit board 150, is the first surface 150a that are engaged to circuit board 150 and electrically connect part 160.Therefore, needing on the circuit board 150 just has bigger space can do configuration with the circuit that electrically connects part 160 electric connections, and in other words, the configuration of circuit board 150 has more elasticity.
What deserves to be mentioned is, under above-mentioned configuration mode, electrically connecting part 106 does not need by exceedingly tortuous, and makes that electrically connecting part 106 can reduce significantly because of complications impaired probability in assembling process, and then makes the packaging qualification rate of LCD MODULE 100 obviously promote.In addition, because circuit board 150 is fixed in the LCD MODULE 100 in the mode of the top 130a that bears against bearing frame 130, but not be fixed in the LCD MODULE 100 in the mode of tradition locking, therefore electrically connect part 160 and in vibration-testing (vibration test), peel off the problem of (peeling) easily and also can obtain tangible improvement with circuit board.
What need to specify is, the circuit board 150 of present embodiment is preferably the corresponding region R of guidance panel 210 that places LCD MODULE 100 and external connection module 200, as shown in Figure 3.In other words, circuit board 150 is preferably the rear of the guidance panel 210 that is disposed at external connection module 200, so the width W of circuit board 150 can't cause restriction to the narrowing of border width S of external connection module 200.
In addition, the LCD MODULE 100 of present embodiment more comprises preceding frame 190, and frame 190 is arranged on the display panels 140 before this, and with bearing frame 130 common holding liquid crystal display panel 140 and circuit boards 150.In other words, preceding frame 190 can make display panels 140 and circuit board 150 firmly place on the bearing frame 130, and then makes LCD MODULE 100 mechanical properties of present embodiment better.
The LCD MODULE 100 of present embodiment more comprises bolster 192, and this bolster 192 is bearing between preceding frame 190 and the circuit board 150.In the present embodiment, bolster 192 for example is a rubber cushion blocks, this bolster 192 can make between more firmly supported former frame 19 of circuit board 150 and the bearing frame 130, and provides the effect of stress buffer and to make that circuit board 150 is difficult in vibration-testing (vibration test) impaired.
In sum, LCD MODULE of the present invention is by circuit board being arranged on the top of bearing frame, and the conductive path that constitutes by access area, liner, fixture, backboard is with circuit board ground connection, make LCD MODULE of the present invention be easy to slimming and difficult electromagnetic interference (EMI) (the electromagnetic interference that produces, EMI) or static injure (electrostatic discharge, problem ESD).
In addition, because circuit board is to be bearing on the top of bearing frame of carrying display panels,, and the material cost of electric connection part can effectively be reduced so that the length of the electric connection part of connecting circuit plate and display panels does not need is oversize.In addition, under this configuration mode, electrically connecting part does not need by exceedingly tortuous, and therefore electrically connecting the probability that part loses can be reduced significantly.Simultaneously, be not fixed in the LCD MODULE because circuit board is a mode with locking, therefore electrically connect part in vibration-testing (vibration test) easily and the circuit board problem of peeling off (peeling) also can be improved effectively.
Though the present invention discloses as above with preferred embodiment; right its is not in order to limit the present invention; under the situation that does not deviate from spirit of the present invention and essence thereof; those of ordinary skill in the art work as can make various corresponding changes and distortion according to the present invention, but these corresponding changes and distortion all should belong to the protection domain of the appended claim of the present invention.

Claims (12)

1. a LCD MODULE is characterized in that, comprising:
One backboard;
One backlight module is disposed on this backboard;
One bearing frame is disposed on this backboard and around this backlight module, and this bearing frame has a top and with respect to the bottom at this top, this bottom faces is to this backboard;
One display panels is arranged at this backlight module top, the edge of this this display panels of top breasting of this bearing frame;
One circuit board is arranged on this top of this bearing frame, and this circuit board has a first surface and with respect to a second surface of this first surface, and this second surface is towards this bearing frame, and this circuit board has an access area and is positioned on this second surface;
One fixture passes this bearing frame, and connects this bearing frame and this backboard; And
One liner abuts against between this access area and this fixture of this circuit board, to constitute by this access area, this liner, this fixture conductive path to this backboard.
2. LCD MODULE as claimed in claim 1 is characterized in that, comprises that also one electrically connects part, is connected between this display panels and this circuit board.
3. LCD MODULE as claimed in claim 1 is characterized in that, also comprises frame before, be arranged on this display panels, and with this display panels of the common clamping of this bearing frame and this circuit board.
4. LCD MODULE as claimed in claim 3 is characterized in that, also comprises a bolster, is bearing between this preceding frame and this circuit board.
5. LCD MODULE as claimed in claim 4 is characterized in that this bolster comprises a rubber cushion blocks.
6. LCD MODULE as claimed in claim 1 is characterized in that, this electric connection part is engaged to this first surface of this circuit board.
7. LCD MODULE as claimed in claim 1 is characterized in that, this electric connection part comprises a flexible circuit board.
8. LCD MODULE as claimed in claim 1 is characterized in that, this fixture has a contact site and exposes to this bearing frame.
9. LCD MODULE as claimed in claim 8 is characterized in that this fixture comprises a bolt, and this bolt has a head and exposes to this bearing frame, with as this contact site.
10. LCD MODULE as claimed in claim 9 is characterized in that this fixture also comprises a nut, is fixed in this backboard, and this bolt locks on this nut.
11. LCD MODULE as claimed in claim 1 is characterized in that, this backlight module comprises a light guide plate and a light-emitting component, and this circuit board and this light-emitting component are positioned at the same side of this light guide plate.
12. LCD MODULE as claimed in claim 1 is characterized in that, this access area comprises a ground mat.
CN201010541395A 2010-11-10 2010-11-10 Liquid crystal display module Active CN102053403B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201010541395A CN102053403B (en) 2010-11-10 2010-11-10 Liquid crystal display module

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201010541395A CN102053403B (en) 2010-11-10 2010-11-10 Liquid crystal display module

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CN102053403A true CN102053403A (en) 2011-05-11
CN102053403B CN102053403B (en) 2012-10-03

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102520533A (en) * 2011-10-07 2012-06-27 友达光电股份有限公司 Display device
CN103955086A (en) * 2014-04-17 2014-07-30 京东方科技集团股份有限公司 Liquid crystal module
CN112349207A (en) * 2020-11-10 2021-02-09 京东方科技集团股份有限公司 Backlight module and display panel

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Publication number Priority date Publication date Assignee Title
TW504127U (en) * 2001-09-10 2002-09-21 Au Optronics Corp Carrying frame with in-frame flexible position-limiting structure
US7234945B2 (en) * 2005-11-21 2007-06-26 Hitachi Displays, Ltd. Display apparatus
CN101080134A (en) * 2006-05-26 2007-11-28 三星电子株式会社 Printed circuit board for flat panel display, flat panel display having the same, and method thereof
US20080068313A1 (en) * 2006-09-15 2008-03-20 Samsung Electronics Co., Ltd. Liquid crystal display
CN101153966A (en) * 2006-09-28 2008-04-02 Nec液晶技术株式会社 Liquid crystal panel module and liquid crystal display device using the same
US20090153772A1 (en) * 2007-12-12 2009-06-18 Au Optronics (Suzhou) Corp., Ltd. Liquid crystal display panel and a method of assembling thereof
CN101726879A (en) * 2008-10-24 2010-06-09 奇美电子股份有限公司 Liquid crystal display device and assembly method thereof

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TW504127U (en) * 2001-09-10 2002-09-21 Au Optronics Corp Carrying frame with in-frame flexible position-limiting structure
US7234945B2 (en) * 2005-11-21 2007-06-26 Hitachi Displays, Ltd. Display apparatus
CN101080134A (en) * 2006-05-26 2007-11-28 三星电子株式会社 Printed circuit board for flat panel display, flat panel display having the same, and method thereof
US20080068313A1 (en) * 2006-09-15 2008-03-20 Samsung Electronics Co., Ltd. Liquid crystal display
CN101153966A (en) * 2006-09-28 2008-04-02 Nec液晶技术株式会社 Liquid crystal panel module and liquid crystal display device using the same
US20090153772A1 (en) * 2007-12-12 2009-06-18 Au Optronics (Suzhou) Corp., Ltd. Liquid crystal display panel and a method of assembling thereof
CN101726879A (en) * 2008-10-24 2010-06-09 奇美电子股份有限公司 Liquid crystal display device and assembly method thereof

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102520533A (en) * 2011-10-07 2012-06-27 友达光电股份有限公司 Display device
CN103955086A (en) * 2014-04-17 2014-07-30 京东方科技集团股份有限公司 Liquid crystal module
US9383598B2 (en) 2014-04-17 2016-07-05 Boe Technology Group Co., Ltd. Liquid crystal module
CN112349207A (en) * 2020-11-10 2021-02-09 京东方科技集团股份有限公司 Backlight module and display panel

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