CN107481619A - Display module and display device - Google Patents
Display module and display device Download PDFInfo
- Publication number
- CN107481619A CN107481619A CN201710906270.2A CN201710906270A CN107481619A CN 107481619 A CN107481619 A CN 107481619A CN 201710906270 A CN201710906270 A CN 201710906270A CN 107481619 A CN107481619 A CN 107481619A
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- China
- Prior art keywords
- golden finger
- main
- lamp bar
- cof
- backlight
- Prior art date
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Classifications
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V19/00—Fastening of light sources or lamp holders
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V23/00—Arrangement of electric circuit elements in or on lighting devices
Abstract
The invention discloses a kind of display module and display device.Display module, including：Display panel；Backlight module, it is oppositely arranged with display panel, wherein, backlight module includes backlight lamp bar；Main flexible PCB；COF flexible PCBs, wherein, COF flexible PCBs are respectively connected with display panel and main flexible PCB, and COF flexible PCBs can be bent is placed in side of the backlight module away from display panel by main flexible PCB；Wherein, backlight lamp bar is connected through COF flexible PCBs with main flexible PCB.In the present invention, backlight lamp bar is established by COF flexible PCBs and main flexible PCB and connected in display module, to realize drive control of the main flexible PCB to backlight lamp bar, the length that backlight lamp bar establishes the lead drawn during circuit connection by backlight lamp bar can substantially be shortened, backlight lamp bar is directly connected with apart near COF flexible PCBs, the problem of being relatively difficult to ensure card in the absence of positioning precision during connection, improve the yield of product.
Description
Technical field
The present invention relates to display technology field, more particularly, to a kind of display module and display device.
Background technology
With the fast development of science and technology, electronic intelligence equipment has turned into a part indispensable in people's life, is chasing after
While asking the usage experience of smoothness and multifarious functional experience, people also constantly pursue more preferable visual experience, such as
The display device of high-contrast, the display device of height screen accounting etc..Wherein, a kind of implementation of the display device of high screen accounting
It is narrowing for display panel lower frame, a kind of existing COF (Chip On Film, chip on film) technology is a kind of by driving
IC is fixed on crystal grain mantle structure on flexible PCB (Flexible Printed Circuit, FPC) and fills technology, with soft attached
Circuit board is added to make the technology that encapsulation chip carrier engages chip with flexible base plate circuit.In conventional display panel, IC is set
In the lower frame of display panel, and COF technologies are used, the IC on display panel is integrated into composition COF flexible circuits on FPC
Plate, COF flexible PCBs are folded to the behind of display panel, save the space of lower frame, you can realize narrowing for lower frame.
In display module using COF technologies, narrowing for lower frame can be realized, but in the prior art, it can not ensure
Positioning precision when backlight lamp bar welds, product yield are low.
Therefore it provides a kind of display module and display device, it is this area urgent problem to be solved to improve product yield.
The content of the invention
In view of this, the invention provides a kind of display module and display device, solves the technology for improving product yield
Problem.
In order to solve the above-mentioned technical problem, the present invention proposes a kind of display module, including：
Display panel；
Backlight module, it is oppositely arranged with display panel, wherein, backlight module includes backlight lamp bar；
Main flexible PCB；
COF flexible PCBs, wherein, COF flexible PCBs are respectively connected with display panel and main flexible PCB,
COF flexible PCBs can be bent is placed in side of the backlight module away from display panel by main flexible PCB；
Wherein, backlight lamp bar is connected through COF flexible PCBs with main flexible PCB.
Further, in order to solve the above-mentioned technical problem, the present invention also proposes that a kind of display device, including the present invention propose
Any one display module.
Compared with prior art, display module and display device of the invention, realize following beneficial effect：
Backlight lamp bar is established by COF flexible PCBs and main flexible PCB and connected in display module, to realize that master is soft
Property circuit board to the drive control of backlight lamp bar, backlight lamp bar is from being less than backlight lamp bar from main flexibility with a distance from COF flexible PCBs
Circuit board distance, backlight lamp bar is connected through COF flexible PCBs with main flexible PCB, the lead of backlight lamp bar need not be across
COF flexible PCBs are connected on main flexible PCB, can substantially be shortened when backlight lamp bar establishes circuit connection by backlight
The length for the lead that lamp bar is drawn, backlight lamp bar directly be connected with apart near COF flexible PCBs, is not present during connection and positions
Precision is relatively difficult to ensure the problem of card, improves the yield of product.
By referring to the drawings to the present invention exemplary embodiment detailed description, further feature of the invention and its
Advantage will be made apparent from.
Brief description of the drawings
It is combined in the description and the accompanying drawing of a part for constitution instruction shows embodiments of the invention, and even
It is used for the principle for explaining the present invention together with its explanation.
Fig. 1 is display module schematic diagram in correlation technique；
Fig. 2 is display module schematic cross-section provided in an embodiment of the present invention；
Fig. 3 is display module schematic top plan view provided in an embodiment of the present invention；
Fig. 4 is the enlarged drawing of region Z1 in Fig. 3；
Fig. 5 is pad group schematic diagram provided in an embodiment of the present invention；
Fig. 6 is a kind of optional embodiment schematic cross-section of region Z2 positions in Fig. 3；
Fig. 7 is the schematic top plan view of the provided in an embodiment of the present invention first main golden finger group；
Fig. 8 is another optional embodiment schematic cross-section of region Z2 positions in Fig. 3；
Fig. 9 is the first golden finger cell schematics provided in an embodiment of the present invention；
Figure 10 is a kind of optional embodiment schematic top plan view of display module provided in an embodiment of the present invention；
Figure 11 is display device schematic top plan view provided in an embodiment of the present invention.
Embodiment
The various exemplary embodiments of the present invention are described in detail now with reference to accompanying drawing.It should be noted that：Unless have in addition
Body illustrates that the unlimited system of part and the positioned opposite of step, numerical expression and the numerical value otherwise illustrated in these embodiments is originally
The scope of invention.
The description only actually at least one exemplary embodiment is illustrative to be never used as to the present invention below
And its application or any restrictions that use.
It may be not discussed in detail for technology, method and apparatus known to person of ordinary skill in the relevant, but suitable
In the case of, the technology, method and apparatus should be considered as part for specification.
In shown here and discussion all examples, any occurrence should be construed as merely exemplary, without
It is as limitation.Therefore, other examples of exemplary embodiment can have different values.
It should be noted that：Similar label and letter represents similar terms in following accompanying drawing, therefore, once a certain Xiang Yi
It is defined, then it need not be further discussed in subsequent accompanying drawing in individual accompanying drawing.
The present invention relates to a kind of display module, display module include display panel, backlight module, COF flexible PCBs and
Main flexible PCB.Wherein, display panel includes the array base palte and color membrane substrates that are oppositely arranged, and the one of COF flexible PCBs
End is bundled on stepped region, and the other end is connected with main flexible PCB；Backlight module includes optical diaphragm group and backlight lamp bar, the back of the body
Light lamp bar and COF flexible PCBs are all driven by main flexible PCB.
In traditional display module, the pad pin length of the backlight lamp bar left and right directions in 10mm or so, welding is determined
Position tolerance+0.25mm, and in the display module using COF technologies, the pad pin length of backlight lamp bar is more than 30mm, draws
Pin length is long to be not easy to weld job in factory so that ± 0.25 positioning precision is relatively difficult to ensure card at present, and product yield reduces, together
When, warpage can occur for long pin, and the measurement that pan feeding is examined when to supplier's OQC and assembling is made troubles.
Fig. 1 is display module schematic diagram in correlation technique, in the related art, as shown in figure 1, to main flexible PCB 11
Simply improved, the pad 12 on main flexible PCB 11 with backlight lamp bar welding is extended, such backlight lamp bar pin 13
Length d can foreshorten to 25mm or so, but still be longer than traditional design, even if further extending the weldering of main flexible PCB 11
The part of disk 12, can not solve the problems, such as positioning precision well, so simply the pressure of dimensional accuracy be transferred to master it is soft
Property circuit board 11 processing procedure on, but also can introduce with COF flexible PCBs 13 produce interference the problem of.
In order to solve the above problems, inventor employ with mode entirely different in correlation technique, the present invention provide
Display module in, backlight lamp bar is connected through COF flexible PCBs with main flexible PCB, realizes main flexible PCB to backlight
The control of lamp bar, the pin length of the circuit board of backlight lamp bar is shortened, the problem of card is relatively difficult to ensure in the absence of positioning precision, improved
Product yield.
The embodiment of the present invention provides a kind of display module, and referring to figs. 2 and 3 shown, Fig. 2 is provided in an embodiment of the present invention
Display module schematic cross-section, Fig. 3 are display module schematic top plan view provided in an embodiment of the present invention.
As shown in Fig. 2 display module, including display panel 201 and the backlight module that is oppositely arranged with display panel 201
202, wherein, backlight module 202 includes backlight lamp bar 2021 and optical diaphragm group (not shown)；Main flexible PCB 203；COF
Flexible PCB 204, wherein, COF flexible PCBs 204 are respectively connected with display panel 201 and main flexible PCB 203,
COF flexible PCBs 204 can be bent is placed in one of backlight module 202 away from display panel 201 by main flexible PCB 203
Side, it is illustrated that COF flexible PCBs 204 are in the display module schematic diagram of bending state in Fig. 2.Carried on the back in the embodiment of the present invention
Light lamp bar 2021 is connected through COF flexible PCBs 204 with main flexible PCB 203, backlight lamp bar 2021 first with COF flexible electricals
Road plate 204 connects, and is then connected through COF flexible PCBs 204 with main flexible PCB 203, to realize main flexible PCB 203
Control to backlight lamp bar 2021.
In the display module with COF flexible PCBs of routine, in order to realize main flexible PCB to backlight lamp bar
Control be by the way of backlight lamp bar is directly established with main flexible PCB and is connected, and backlight lamp bar passes through in the present invention
COF flexible PCBs are established with main flexible PCB and connected, and in display module, Fig. 3 shows a kind of the optional of backlight module
Embodiment, show by backlight lamp bar draw lead 2022 be connected with COF flexible PCBs 204 (it should be noted that
Present embodiment is not limited the position of the lead 2022 drawn by backlight lamp bar in backlight module).As shown in figure 3, the back of the body
The position Q that light lamp bar 2021 and COF flexible PCBs 204 are connected with display panel 201 is respectively positioned on the same side of display module, main
Flexible PCB 203 can be bundled on the optional position of COF flexible PCBs 204 and (be not limited to position shown in Fig. 3), backlight
Lamp bar 2021 from a distance from COF flexible PCBs 204 respectively less than backlight lamp bar 2021 from main flexible PCB 203 with a distance from, by backlight
Lamp bar is connected through COF flexible PCBs 204 with main flexible PCB 203, and the lead of backlight lamp bar 2021 need not be flexible across COF
Circuit board 204 is connected on main flexible PCB 203, can substantially shorten lead when backlight lamp bar establishes circuit connection
2022 length, the problem of being relatively difficult to ensure card in the absence of positioning precision during connection, improve the yield of product.
Further, in some optional embodiments, backlight lamp bar is with COF flexible PCBs by way of welding
Connection is established, region Z1 as shown in Figure 3 is that backlight lamp bar 202 establishes the region connected, Fig. 4 with COF flexible PCBs 204
For the enlarged drawing of region Z1 in Fig. 3, as shown in figure 4, backlight lamp bar has backlight golden finger group 2023, COF flexible PCBs 204
With pad group 2041, backlight golden finger group 2023 is welded with pad group 2041, wherein, the golden hand in backlight golden finger group 2023
Refer to the J and pad P in pad group 2041 to correspond.Fig. 4 is so that backlight golden finger group 2023 includes 4 golden fingers as an example, with the back of the body
The pad group 2041 that light golden finger group 2023 is welded includes 4 pad P.It should be noted that the embodiment of the present invention is for COF
Welded in the position of pad group 2041 in flexible PCB 204, pad group 2041 in pad P orientation, pad group 2041
Disk P quantity and size does not limit.Increase pad group 2041 in COF flexible PCBs 2041, pass through backlight golden finger
The mode of group and pad bond pads realizes the connection of backlight lamp bar and COF flexible PCBs, and then backlight lamp bar is through COF flexible electricals
Road plate is connected with main flexible PCB, realizes drive control of the main flexible PCB to backlight lamp bar, backlight lamp bar is from COF flexibilities
Circuit board distance is closer to therefore the wire length for the backlight golden finger group drawn by backlight lamp bar is short, can ensure during welding good
Good aligning accuracy, welding procedure are easily achieved, and product yield is high.
Further, in a kind of optional embodiment, Fig. 5 is pad group schematic diagram provided in an embodiment of the present invention,
As shown in figure 5, pad group 2041 has an at least two pad P, in figure by taking 4 pad P as an example, pad P size for 0.7mm ×
3.1mm, i.e. pad P length a is 3.1mm, and width b is 0.7mm, and the spacing c between two neighboring pad P is 1.2mm.When
When pad P is oversized, the area that pad group 2041 takes on COF flexible PCBs is unfavorable for greatly very much making, pad P sizes
When too small, it is impossible to ensure pad group 2041 and the fixing of the welding of backlight golden finger group, in order to ensure pad and backlight gold hand
Good electric conductivity between finger group, setting pad size are 0.7mm × 3.1mm, while the spacing between two neighboring pad
The insulation between each pad is ensure that for 1.2mm, and then ensure that the performance reliability of display module.
Further, region Z2 as shown in Figure 3 is the area that COF flexible PCBs establish connection with main flexible PCB
Domain, Fig. 6 are a kind of optional embodiment schematic cross-section of region Z2 positions in Fig. 3, illustrate COF flexible PCBs and master is soft
Connected mode between property circuit board, specifically, COF flexible PCBs 204 have the first main golden finger group J1, main flexible circuit
There is plate 203 second main golden finger group J2, the second main main golden finger group J1 of golden finger group J2 and first to pass through anisotropic conductive adhesive paste
205 electrical connections.There is anisotropic conductive adhesive paste 205 anisotropy can realize the steady of conductive remaining direction insulation in a single direction
Determine structure, can be realized in the first main main golden finger group J2 of golden finger group J1 and second by anisotropic conductive adhesive paste 205 and correspondingly connected
Electrical connection between the golden finger connect, with the work(that gluing is fixed while anisotropic conductive adhesive paste 205 is with unilateal conduction performance
Can, reliable and stable between the first main main golden finger group J2 of golden finger group J1 and second be connected can be realized.
Further, in some optional embodiments, Fig. 7 is the provided in an embodiment of the present invention first main golden finger group
Schematic top plan view, as shown in fig. 7, the first main golden finger group J1 includes the first golden finger unit J1A and the second golden finger list
First J1B, wherein, the first golden finger unit J1A is connected with pad by the cabling in COF flexible PCBs.And the embodiment party
In formula, no matter using individual layer wiring or two-layer wiring during the making of COF flexible PCBs, it is only necessary in COF flexible PCBs
The cabling that middle increase pad and the first golden finger unit J1A are connected with pad, can be achieved with main flexible PCB to backlight lamp bar
Drive control, without changing the original wiring design, also, the first golden finger list of COF flexible PCBs in itself
First J1A can be produced on when making beside the original golden finger unit of COF flexible PCBs (namely second golden finger unit), no
Need to do COF flexible PCBs original golden finger unit accommodation, technique is relatively easy easily to be realized.
Further, in some optional embodiments, as shown in Figure 6, the first golden finger group J1 and the is connected
Two golden finger group J2 anisotropic conductive adhesive paste 205 is a continuous whole piece, first that COF is flexible in display module manufacturing process
Circuit board connects with display panel binding, then completes COF flexible PCBs and main flexible PCB by once binding technique
Connection, only need to bind technique twice in manufacturing process, technique is simple.
Further, in some optional embodiments, Fig. 8 is another optional implementation of region Z2 positions in Fig. 3
Mode schematic cross-section, as shown in figure 8, anisotropic conductive adhesive paste includes the first anisotropic conductive adhesive paste 2051 and the second anisotropy is conductive
Glue 2052, wherein, the first golden finger unit J1A is electrically connected by the first anisotropic conductive adhesive paste 2051 and the second main golden finger group J2
Connect, the second golden finger unit J1B is electrically connected by the second anisotropic conductive adhesive paste 2052 with the second main golden finger group J2.The embodiment party
In formula, the backlight golden finger and pad solder of backlight lamp bar, pad pass through the cabling in COF flexible PCBs and the first golden finger
Unit J1A connections, the first golden finger unit J1A are electrically connected by the first anisotropic conductive adhesive paste 2051 and the second main golden finger group J2
Connect, drive control of the main flexible PCB to backlight lamp bar is realized by this connected mode, backlight lamp bar is through COF flexible circuits
Plate is connected with main flexible PCB, backlight lamp bar from a distance from COF flexible PCBs closer to therefore the back of the body with being drawn by backlight lamp bar
The wire length of light golden finger group is short, can ensure good aligning accuracy during welding, welding procedure is easily achieved, product yield
It is high；The second golden finger unit J1B being connected with the circuit in COF flexible PCBs, by the second anisotropic conductive adhesive paste 2052 with
Second main golden finger group J2 electrical connections, realize drive control of the main flexible PCB to COF flexible PCBs, the embodiment
In, the first main main golden finger group J2 of golden finger group J1 and second complete connection, the first golden finger unit by binding technique twice
J1A and the second golden finger unit J1B are mutually bound with the second main golden finger group J2 by anisotropic conductive adhesive paste respectively, different side after binding
Property conducting resinl with unilateal conduction performance while with the fixed function of gluing, the first main golden finger group J1 and the can be realized
It is reliable and stable between two main golden finger group J2 to be connected.It should be noted that COF flexible PCBs and main flexible PCB
Connection can also be completed by repeatedly binding, use an anisotropic conductive adhesive paste during binding every time.
Further, in some optional embodiments, Fig. 9 is the first golden finger unit provided in an embodiment of the present invention
Schematic diagram, it is connected as shown in figure 9, the first golden finger unit includes at least two golden fingers with pad group, two neighboring golden hand
Space D between finger is 0.1mm, and two golden fingers include positive pole golden finger A and negative pole golden finger K；Positive pole golden finger A and negative pole
Golden finger K length L is 2.4mm, and the width D 1 of positive pole golden finger is more than or equal to 1.8mm, and the width D 2 of negative pole golden finger is big
Only illustrated in equal to 0.6mm, Fig. 9 with the first golden finger unit including a positive pole golden finger A and 3 negative pole golden finger K.
It should be noted that positive pole golden finger and negative pole golden finger size can also be phases in the first golden finger unit in the present invention
With, as long as ensureing that single golden finger is respectively provided with enough conducting areas and can be achieved with the first golden finger in the first golden finger unit
Conducting between unit and the second golden finger group, and then realize drive control of the main flexible PCB for backlight lamp bar.
The conducting particles diameter of different model anisotropic conductive adhesive paste, quantity have difference, therefore unit-area impedance can not
Together.The smaller ducting capacity of impedance is stronger, and internal resistance caloric value is smaller, and the ability for transmitting power is stronger.Need in practice according to different side
Property conducting resinl different model design the size of corresponding golden finger in the first golden finger group and the second golden finger single group, to ensure
Normally.
For the first golden finger unit in the embodiment of the present invention, set in COF flexible PCBs and the second main golden hand
Finger group connects, for realizing power supply of the main flexible PCB to backlight lamp bar.Inventor leads to the first golden finger unit and second
Golden finger group has done verification experimental verification using the performance reliability of anisotropic conductive adhesive paste electrical connection.
In experiment, measure conducting area 0.12mm2, it is 120mV, electric current 1200mA, after application to apply voltage in test
Do not continue to increase voltage and current size, test result is the ducting capacity of anisotropic conductive adhesive paste in 1200mW/mm2More than, and
And the phenomenon that anisotropic conductive adhesive paste is peeled off or even burnt does not occur in testing, the first golden finger unit is adopted with the second main golden finger group
The electric conductivity electrically connected with anisotropic conductive adhesive paste is reliable.It can be used in the confession of main flexible PCB driving backlight lamp bar
Electricity.
Further, Figure 10 is a kind of optional embodiment schematic top plan view of display module provided in an embodiment of the present invention,
As shown in Figure 10, display panel 201 includes viewing area AA and in the first direction the binding area B of x extensions, and binding area B is used to bind
COF flexible PCBs 204, first direction x is parallel with the plate face of display panel 201, and COF flexible PCBs 204 are in expansion shape
During state, on second direction y, display panel 201, COF flexible PCBs 204 and main flexible PCB 203 are set gradually, its
In, second direction y is the direction that binding area B is pointed to by viewing area AA, and the circuit board 2024 of backlight lamp bar is drawn by backlight lamp bar
Afterwards, COF flexible PCBs 204 are extended on y in a second direction.
In the embodiment, the circuit board of backlight lamp bar extends to COF flexible PCBs after being drawn by backlight lamp bar, realizes
Connection between backlight lamp bar and COF flexible PCBs, it is only necessary to some adjustment in shape are done to COF flexible PCBs, together
When the wire that backlight lamp bar turns on main flexible PCB is only set in COF flexible PCBs, to realize main flexible PCB
To the drive control of backlight lamp bar, being adjusted without to the original wiring of COF flexible PCBs itself, technique change is small,
It is simple easily to implement, in present embodiment, the length of circuit board of backlight lamp bar is drawn by backlight lamp bar compared in conventional design
When backlight lamp bar directly turns on connection with main flexible PCB, the length of the circuit board of backlight lamp bar substantially shortens, during connection not
The problem of positioning precision is relatively difficult to ensure card be present, product yield is high.
Further, the present invention also provides a kind of display device, and Figure 11 is that display device provided in an embodiment of the present invention is bowed
Depending on schematic diagram, display device provided by the invention includes the display module that any embodiment of the present invention provides.Carried on the back in display module
Light lamp bar is established by COF flexible PCBs and main flexible PCB and connected, and backlight lamp bar with a distance from COF flexible PCBs from being less than
Backlight lamp bar from main flexible PCB with a distance from, backlight lamp bar is connected through COF flexible PCBs with main flexible PCB, backlight
The lead of bar need not be connected on main flexible PCB across COF flexible PCBs, can substantially shorten backlight lamp bar foundation
The length of lead when circuit connects, the problem of being relatively difficult to ensure card in the absence of positioning precision during connection, improve the yield of product.
By above-described embodiment, display module and display device of the invention, following beneficial effect is reached：
Backlight lamp bar is established by COF flexible PCBs and main flexible PCB and connected in display module, to realize that master is soft
Property circuit board to the drive control of backlight lamp bar, backlight lamp bar is from being less than backlight lamp bar from main flexibility with a distance from COF flexible PCBs
Circuit board distance, backlight lamp bar is connected through COF flexible PCBs with main flexible PCB, the lead of backlight lamp bar need not be across
COF flexible PCBs are connected on main flexible PCB, can substantially be shortened when backlight lamp bar establishes circuit connection by backlight
The length for the lead that lamp bar is drawn, backlight lamp bar directly be connected with apart near COF flexible PCBs, is not present during connection and positions
Precision is relatively difficult to ensure the problem of card, improves the yield of product.
Although some specific embodiments of the present invention are described in detail by example, the skill of this area
Art personnel it should be understood that example above merely to illustrating, the scope being not intended to be limiting of the invention.The skill of this area
Art personnel to above example it should be understood that can modify without departing from the scope and spirit of the present invention.This hair
Bright scope is defined by the following claims.
Claims (10)
- A kind of 1. display module, it is characterised in that including：Display panel；Backlight module, it is oppositely arranged with the display panel, wherein, the backlight module includes backlight lamp bar；Main flexible PCB；COF flexible PCBs, wherein, the COF flexible PCBs are distinguished with the display panel and the main flexible PCB It is connected, the COF flexible PCBs can be bent is placed in the backlight module away from described aobvious by the main flexible PCB Show the side of panel；Wherein, the backlight lamp bar is connected through the COF flexible PCBs with the main flexible PCB.
- 2. display module according to claim 1, it is characterised in thatThe backlight lamp bar has backlight golden finger group, and the COF flexible PCBs have pad group, the backlight golden finger group With the pad bond pads.
- 3. display module according to claim 2, it is characterised in thatThe COF flexible PCBs have the first main golden finger group, and the main flexible PCB has the second main golden finger group, institute The second main golden finger group is stated to electrically connect by anisotropic conductive adhesive paste with the described first main golden finger group.
- 4. display module according to claim 3, it is characterised in thatThe first main golden finger group includes the first golden finger unit and the second golden finger unit, the first golden finger unit It is connected with the pad by the cabling in the COF flexible PCBs.
- 5. display module according to claim 4, it is characterised in thatThe anisotropic conductive adhesive paste is a continuous whole piece.
- 6. display module according to claim 4, it is characterised in thatThe anisotropic conductive adhesive paste includes the first anisotropic conductive adhesive paste and the second anisotropic conductive adhesive paste, wherein, the first gold medal hand Refer to unit to electrically connect with the described second main golden finger group by first anisotropic conductive adhesive paste, the second golden finger unit leads to Second anisotropic conductive adhesive paste is crossed to electrically connect with the described second main golden finger group.
- 7. display module according to claim 4, it is characterised in thatThe first golden finger unit includes at least two golden fingers and is connected with the pad group, the two neighboring golden finger Between spacing be 0.1mm, two golden fingers include positive pole golden finger and negative pole golden finger；The length of the positive pole golden finger and the negative pole golden finger is 2.4mm, and the width of the positive pole golden finger is more than etc. In 1.8mm, the width of the negative pole golden finger is more than or equal to 0.6mm.
- 8. display module according to claim 2, it is characterised in thatThe pad group has at least two pads, and the pad size is 0.7mm × 3.1mm, the two neighboring pad it Between spacing be 1.2mm.
- 9. display module according to claim 1, it is characterised in thatThe display panel includes viewing area and the binding area extended in a first direction, and the binding area is used to bind the COF Flexible PCB, the first direction is parallel with the plate face of the display panel,When the COF flexible PCBs are in deployed condition, in a second direction, the display panel, the COF flexible circuits Plate and the main flexible PCB are set gradually, wherein, the second direction is to point to the binding area by the viewing area Direction；After the circuit board of the backlight lamp bar is drawn by the backlight lamp bar, it is soft to extend upwardly to the COF along the second party Property circuit board.
- 10. a kind of display device, it is characterised in that including the display module described in any one of claim 1 to 9.
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| CN201710906270.2A CN107481619B (en) | 2017-09-29 | 2017-09-29 | Display module and display device |
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| CN201710906270.2A CN107481619B (en) | 2017-09-29 | 2017-09-29 | Display module and display device |
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| CN107481619A true CN107481619A (en) | 2017-12-15 |
| CN107481619B CN107481619B (en) | 2019-09-24 |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108156288A (en) * | 2018-01-02 | 2018-06-12 | 京东方科技集团股份有限公司 | A kind of display module and preparation method thereof |
| CN109195322A (en) * | 2018-10-10 | 2019-01-11 | 南京中电熊猫平板显示科技有限公司 | A kind of printed circuit board and display module |
| CN110189626A (en) * | 2019-05-27 | 2019-08-30 | Oppo广东移动通信有限公司 | Display screen component and electronic equipment |
| CN110989230A (en) * | 2019-12-27 | 2020-04-10 | 深圳市华星光电半导体显示技术有限公司 | Display device and electronic apparatus |
| CN111292614A (en) * | 2020-01-15 | 2020-06-16 | 京东方科技集团股份有限公司 | Display module and display device |
| CN113625488A (en) * | 2021-08-11 | 2021-11-09 | 东莞华贝电子科技有限公司 | Backlight module and display device |
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| CN110189626B (en) * | 2019-05-27 | 2021-11-02 | Oppo广东移动通信有限公司 | Display screen assembly and electronic equipment |
| CN110989230A (en) * | 2019-12-27 | 2020-04-10 | 深圳市华星光电半导体显示技术有限公司 | Display device and electronic apparatus |
| CN111292614A (en) * | 2020-01-15 | 2020-06-16 | 京东方科技集团股份有限公司 | Display module and display device |
| CN111292614B (en) * | 2020-01-15 | 2022-07-12 | 京东方科技集团股份有限公司 | Display module and display device |
| CN113625488A (en) * | 2021-08-11 | 2021-11-09 | 东莞华贝电子科技有限公司 | Backlight module and display device |
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