CN107481619B - Display module and display device - Google Patents
Display module and display device Download PDFInfo
- Publication number
- CN107481619B CN107481619B CN201710906270.2A CN201710906270A CN107481619B CN 107481619 B CN107481619 B CN 107481619B CN 201710906270 A CN201710906270 A CN 201710906270A CN 107481619 B CN107481619 B CN 107481619B
- Authority
- CN
- China
- Prior art keywords
- circuit board
- flexible circuit
- golden finger
- main
- lamp bar
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 239000000853 adhesive Substances 0.000 claims description 25
- 230000001070 adhesive effect Effects 0.000 claims description 25
- 238000003466 welding Methods 0.000 claims description 10
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 claims description 4
- 239000010931 gold Substances 0.000 claims description 4
- 229910052737 gold Inorganic materials 0.000 claims description 4
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 abstract 1
- 238000005516 engineering process Methods 0.000 description 14
- 238000000034 method Methods 0.000 description 12
- 238000010586 diagram Methods 0.000 description 7
- 238000013461 design Methods 0.000 description 4
- 238000012360 testing method Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000004026 adhesive bonding Methods 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- 238000012795 verification Methods 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005538 encapsulation Methods 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 239000010410 layer Substances 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
- 229910000679 solder Inorganic materials 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Classifications
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
Abstract
The invention discloses a display module and a display device. Display module assembly includes: a display panel; the backlight module is arranged opposite to the display panel and comprises a backlight lamp bar; a main flexible circuit board; the COF flexible circuit board is respectively connected with the display panel and the main flexible circuit board, and the COF flexible circuit board can be bent to place the main flexible circuit board on one side of the backlight module, which is far away from the display panel; the backlight lamp bar is connected with the main flexible circuit board through the COF flexible circuit board. According to the invention, the backlight lamp bar in the display module is connected with the main flexible circuit board through the COF flexible circuit board, so that the driving control of the main flexible circuit board on the backlight lamp bar is realized, the length of a lead wire led out by the backlight lamp bar when the backlight lamp bar is in circuit connection can be obviously shortened, the backlight lamp bar is directly connected with the COF flexible circuit board with a short distance, the problem that the positioning precision is difficult to guarantee does not exist during connection, and the yield of products is improved.
Description
Technical field
The present invention relates to field of display technology, more particularly, to a kind of display module and display device.
Background technique
With the fast development of science and technology, electronic intelligence equipment has become a part indispensable in for people's lives, is chasing after
While asking smooth usage experience and multifarious functional experience, people also constantly pursue better visual experience, such as
The display device of high contrast, the display device etc. of height screen accounting.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, flip chip) technology is a kind of by driving
IC is fixed on crystal grain mantle structure on flexible circuit board (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 setting
In the lower frame of display panel, and COF technology is used, the IC on display panel is integrated into composition COF flexible circuit on FPC
COF flexible circuit board is folded to the behind of display panel by plate, saves the space of lower frame, and narrowing for lower frame can be realized.
In display module using COF technology, narrowing for lower frame can be realized, but in the prior art, it not can guarantee
Positioning accuracy when backlight lamp bar welds, product yield are low.
Therefore it provides a kind of display module and display device, improving product yield is this field urgent problem to be solved.
Summary of the invention
In view of this, solving the technology for improving product yield the present invention provides a kind of display module and display device
Problem.
In order to solve the above-mentioned technical problem, the present invention proposes a kind of display module, comprising:
Display panel；
Backlight module is oppositely arranged with display panel, wherein backlight module includes backlight lamp bar；
Main flexible circuit board；
COF flexible circuit board, wherein COF flexible circuit board is respectively connected with display panel and main flexible circuit board,
COF flexible circuit board can be bent the main flexible circuit board side far from display panel that is placed in backlight module；
Wherein, backlight lamp bar is connect through COF flexible circuit board with main flexible circuit board.
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 it is following the utility model has the advantages that
Backlight lamp bar establishes connection by COF flexible circuit board and main flexible circuit board in display module, to realize that master is soft
Property circuit board to the drive control of backlight lamp bar, backlight lamp bar is less than backlight lamp bar from main flexibility with a distance from COF flexible circuit board
Backlight lamp bar is connect through COF flexible circuit board with main flexible circuit board by circuit board distance, and the lead of backlight lamp bar need not be across
COF flexible circuit board is connected on main flexible circuit board, can be obviously shortened when backlight lamp bar establishes circuit connection by backlight
The length for the lead that lamp bar is drawn, backlight lamp bar directly connect with apart from close COF flexible circuit board, and there is no position when connection
The problem of precision is relatively difficult to guarantee improves the yield of product.
By referring to the drawings to the detailed description of exemplary embodiment of the present invention, other feature of the invention and its
Advantage will become apparent.
Detailed description of the invention
It is combined in the description and the attached drawing for constituting part of specification shows the embodiment of the present invention, and even
With its explanation together principle for explaining the present invention.
Fig. 1 is display module schematic diagram in the related technology；
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 the region position Z2 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 the region position Z2 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.
Specific embodiment
Carry out the various exemplary embodiments of detailed description of the present invention now with reference to attached drawing.It should also be noted that unless in addition having
Body explanation, the unlimited system of component and the positioned opposite of step, numerical expression and the numerical value otherwise illustrated in these embodiments is originally
The range of invention.
Be to the description only actually of at least one exemplary embodiment below it is illustrative, never as to the present invention
And its application or any restrictions used.
Technology, method and apparatus known to person of ordinary skill in the relevant may be not discussed in detail, but suitable
In the case of, the technology, method and apparatus should be considered as part of specification.
It is shown here and discuss all examples in, any occurrence should be construed as merely illustratively, without
It is as limitation.Therefore, other examples of exemplary embodiment can have different values.
It should also be noted that similar label and letter indicate similar terms in following attached drawing, therefore, once a certain Xiang Yi
It is defined in a attached drawing, then in subsequent attached drawing does not need that it is further discussed.
The present invention relates to a kind of display module, display module include display panel, backlight module, COF flexible circuit board and
Main flexible circuit board.Wherein, display panel includes the array substrate being oppositely arranged and color membrane substrates, and the one of COF flexible circuit board
End is bundled on stepped region, and the other end is connect with main flexible circuit board；Backlight module includes optical diaphragm group and backlight lamp bar, back
Light lamp bar and COF flexible circuit board are all driven by main flexible circuit board.
In traditional display module, the pad pin length of backlight lamp bar left and right directions in 10mm or so, welding is fixed
Position tolerance+0.25mm, and in the display module using COF technology, the pad pin length of backlight lamp bar is greater than 30mm, draws
Foot length is too long to be not easy to weld job in factory, so that ± 0.25 positioning accuracy is relatively difficult to guarantee at present, product yield is reduced, together
When, warpage can occur for too long pin, and the measurement that pan feeding is examined when to supplier's shipment inspection and assembling is made troubles.
Fig. 1 is display module schematic diagram in the related technology, in the related art, as shown in Figure 1, to main flexible circuit board 11
It is simply improved, the pad 12 on main flexible circuit board 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 circuit board 11
It is soft to be only transferred to master in this way by 12 part of disk, the problem of can not well solving positioning accuracy for the pressure of dimensional accuracy
On the processing procedure of property circuit board 11, but also it can introduce and lead to the problem of interference with COF flexible circuit board 13.
To solve the above-mentioned problems, inventor using with it is entirely different in the related technology by the way of, provided in the present invention
Display module in, backlight lamp bar is connect through COF flexible circuit board with main flexible circuit board, realizes main flexible circuit board to backlight
The problem of control of lamp bar shortens the pin length of the circuit board of backlight lamp bar, is relatively difficult to guarantee there is no positioning accuracy is improved
Product yield.
The embodiment of the present invention provides a kind of display module, shown referring to figs. 2 and 3, and 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 being oppositely arranged with display panel 201
202, wherein backlight module 202 includes backlight lamp bar 2021 and optical diaphragm group (not shown)；Main flexible circuit board 203；COF
Flexible circuit board 204, wherein COF flexible circuit board 204 is respectively connected with display panel 201 and main flexible circuit board 203,
COF flexible circuit board 204, which can be bent, is placed in one of backlight module 202 far from display panel 201 for main flexible circuit board 203
Side, shown in Figure 2 is the display module schematic diagram that COF flexible circuit board 204 is in bending state.It is carried on the back in the embodiment of the present invention
Light lamp bar 2021 is connect through COF flexible circuit board 204 with main flexible circuit board 203, backlight lamp bar 2021 first with COF flexible electrical
Road plate 204 connects, and then connect through COF flexible circuit board 204 with main flexible circuit board 203, to realize main flexible circuit board 203
Control to backlight lamp bar 2021.
In the conventional display module with COF flexible circuit board, in order to realize main flexible circuit board to backlight lamp bar
Control be in such a way that backlight lamp bar and main flexible circuit board directly establish connection, and backlight lamp bar passes through in the present invention
COF flexible circuit board and main flexible circuit board establish connection, and in display module, Fig. 3 shows a kind of the optional of backlight module
Embodiment, show by backlight lamp bar draw lead 2022 connect with COF flexible circuit board 204 (it should be noted that
Present embodiment does not limit position of the lead 2022 drawn by backlight lamp bar in backlight module).As shown in figure 3, back
The position Q that light lamp bar 2021 and COF flexible circuit board 204 are connect with display panel 201 is respectively positioned on the same side of display module, main
Flexible circuit board 203 can be bundled on any position of COF flexible circuit board 204 and (be not limited to position shown in Fig. 3), backlight
Respectively less than backlight lamp bar 2021 is with a distance from main flexible circuit board 203 with a distance from COF flexible circuit board 204 for lamp bar 2021, by backlight
Lamp bar is connect through COF flexible circuit board 204 with main flexible circuit board 203, and the lead of backlight lamp bar 2021 need not be across COF flexibility
Circuit board 204 is connected on main flexible circuit board 203, can be obviously shortened lead when backlight lamp bar establishes circuit connection
2022 length improves the yield of product the problem of being relatively difficult to guarantee when connection there is no positioning accuracy.
Further, in some alternative embodiments, backlight lamp bar and COF flexible circuit board be by welding
Connection is established, region Z1 as shown in Figure 3 is the region that backlight lamp bar 202 and COF flexible circuit board 204 establish connection, Fig. 4
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 circuit board 204
With pad group 2041, backlight golden finger group 2023 and pad group 2041 are welded, wherein the golden hand in backlight golden finger group 2023
Refer to that the pad P in J and pad group 2041 is corresponded.Fig. 4 is by taking backlight golden finger group 2023 includes 4 golden fingers as an example, with back
It include 4 pad P in the pad group 2041 that light golden finger group 2023 is welded.It should be noted that the embodiment of the present invention is for COF
The orientation of pad P in the position of pad group 2041 in flexible circuit board 204, pad group 2041 is welded in pad group 2041
The quantity and size of disk P is without limitation.Increase pad group 2041 in COF flexible circuit board 2041, passes through backlight golden finger
Group realizes the connection of backlight lamp bar Yu COF flexible circuit board with the mode of pad group welding, and then backlight lamp bar is through COF flexible electrical
Road plate is connect with main flexible circuit board, realizes main flexible circuit board to the drive control of backlight lamp bar, backlight lamp bar is from COF flexibility
Circuit board is apart from closer, therefore the wire length for the backlight golden finger group drawn by backlight lamp bar is short, and when welding can guarantee 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 at least two pad P, in figure by taking 4 pad P as an example, the size of pad P be 0.7mm ×
3.1mm, that is, the length a of pad P 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 occupies on COF flexible circuit board is unfavorable for greatly very much making, pad P size
When too small, it cannot be guaranteed that the fixing of the welding of pad group 2041 and backlight golden finger group, in order to guarantee 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
It ensure that the insulation between each pad 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 circuit board and main flexible circuit board establish connection
Domain, Fig. 6 are a kind of optional embodiment schematic cross-section of the region position Z2 in Fig. 3, illustrate that COF flexible circuit board and master are soft
Property circuit board between connection type, specifically, COF flexible circuit board 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, corresponding company in the first main main golden finger group J2 of golden finger group J1 and second can be realized by anisotropic conductive adhesive paste 205
The electrical connection between golden finger connect, with the function that gluing is fixed while anisotropic conductive adhesive paste 205 is with unilateal conduction performance
Can, it can be realized reliable and stable between the first main main golden finger group J2 of golden finger group J1 and second be connected and fixed.
Further, in some alternative 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, in the first main golden finger group J1 include the first golden finger unit J1A and the second golden finger list
First J1B, wherein the first golden finger unit J1A is connect with pad by the cabling in COF flexible circuit board.And the embodiment party
In formula, no matter when production of COF flexible circuit board uses single layer to be routed or two-layer wiring, it is only necessary in COF flexible circuit board
The middle cabling for increasing pad and the first golden finger unit J1A and connecting with pad, can be achieved with main flexible circuit board to backlight lamp bar
Drive control, without changing the original wiring design of COF flexible circuit board itself, also, the first golden finger list
First J1A can be produced on beside the original golden finger unit of COF flexible circuit board (namely second golden finger unit) when making, no
It needs that the original golden finger unit of COF flexible circuit board is adaptively adjusted, the relatively easy easy realization of technique.
Further, in some alternative embodiments, as shown in Figure 6, the first golden finger group J1 and the is connected
The anisotropic conductive adhesive paste 205 of two golden finger group J2 is continuous one whole, in display module manufacturing process, first by COF flexibility
Circuit board and display panel binding connect, and then complete COF flexible circuit board and main flexible circuit board by once binding technique
Connection, only need to bind technique, simple process twice in manufacturing process.
Further, in some alternative embodiments, Fig. 8 is the optional implementation of another kind of the region position Z2 in Fig. 3
Mode schematic cross-section, as shown in figure 8, anisotropic conductive adhesive paste includes that the first anisotropic conductive adhesive paste 2051 and the second anisotropy are 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
It connects, 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 and the first golden finger in COF flexible circuit board
Unit J1A connection, 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
It connects, main flexible circuit board is realized to the drive control of backlight lamp bar by this connection type, backlight lamp bar is through COF flexible circuit
Plate is connect with main flexible circuit board, and backlight lamp bar is closer with a distance from COF flexible circuit board, thus with the back drawn by backlight lamp bar
The wire length of light golden finger group is short, and when welding can guarantee that good aligning accuracy, welding procedure are easily achieved, product yield
It is high；With the second golden finger unit J1B of the circuit connection in COF flexible circuit board, by the second anisotropic conductive adhesive paste 2052 with
Second main golden finger group J2 electrical connection, realizes main flexible circuit board to the drive control of COF flexible circuit board, the embodiment
In, the first main main golden finger group J2 of golden finger group J1 and second completes connection, the first golden finger unit by binding technique twice
J1A and the second golden finger unit J1B is mutually bound with the second main golden finger group J2 by anisotropic conductive adhesive paste respectively, different side after binding
Property conducting resinl it is fixed with gluing while have the function of unilateal conduction performance, can be realized the first main golden finger group J1 and the
It is reliable and stable between two main golden finger group J2 to be connected and fixed.It should be noted that COF flexible circuit board and main flexible circuit board
Connection can also be completed by repeatedly binding, use an anisotropic conductive adhesive paste when binding every time.
Further, in some alternative embodiments, Fig. 9 is the first golden finger unit provided in an embodiment of the present invention
Schematic diagram, as shown in figure 9, include that at least two golden fingers are connect with pad group in the first golden finger unit, two neighboring gold hand
Space D between finger is 0.1mm, and two golden fingers include anode golden finger A and cathode golden finger K；Positive golden finger A and cathode
The length L of golden finger K is 2.4mm, and the width D 1 of positive golden finger is more than or equal to 1.8mm, and the width D 2 of cathode golden finger is big
In being equal to 0.6mm, Fig. 9 only includes that an anode golden finger A and 3 cathode golden finger K is illustrated with the first golden finger unit.
It should be noted that positive golden finger and cathode golden finger size are also possible to phase in the first golden finger unit in the present invention
With, as long as guaranteeing in the first golden finger unit that single golden finger all has enough conducting areas can be achieved with the first golden finger
Conducting between unit and the second golden finger group, and then realize main flexible circuit board for the drive control of 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 calorific value is smaller, and the ability for transmitting power is stronger.It is needed 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 guarantee
Normally.
Gold hand main for the first golden finger unit in the embodiment of the present invention, being arranged in COF flexible circuit board and second
The connection of finger group, the power supply for realizing main flexible circuit board to backlight lamp bar.Inventor is main 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 test, measurement conducting area 0.12mm2, applying voltage in test is 120mV, electric current 1200mA, after application
Voltage and current size is not continued growing, and test result is the ducting capacity of anisotropic conductive adhesive paste in 1200mW/mm2More than, and
And do not burnt even there is a phenomenon where anisotropic conductive adhesive paste peels off in test, the first golden finger unit is adopted with the second main golden finger group
It is reliable with the electric conductivity that anisotropic conductive adhesive paste is electrically connected.It can be used in the confession of main flexible circuit board 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 the binding area B along first direction x extension, and binding area B is for binding
COF flexible circuit board 204, first direction x is parallel with the plate face of display panel 201, and COF flexible circuit board 204 is in expansion shape
When state, on second direction y, display panel 201, COF flexible circuit board 204 and main flexible circuit board 203 are set gradually,
In, second direction y is the direction that binding area B is directed toward by viewing area AA, and the circuit board 2024 of backlight lamp bar is drawn by backlight lamp bar
Afterwards, COF flexible circuit board 204 is extended on y in a second direction.
In the embodiment, the circuit board of backlight lamp bar extends to COF flexible circuit board after being drawn by backlight lamp bar, realizes
Connection between backlight lamp bar and COF flexible circuit board, it is only necessary to some adjustment in shape be done to COF flexible circuit board, together
When the conducting wire that backlight lamp bar is connected with main flexible circuit board is only set in COF flexible circuit board, to realize main flexible circuit board
To the drive control of backlight lamp bar, adjusting without to the original wiring of COF flexible circuit board itself, technique change is small,
It is simple easily to implement, in present embodiment, the length of the circuit board of backlight lamp bar is drawn compared in conventional design by backlight lamp bar
When connection is directly connected in backlight lamp bar with main flexible circuit board, the length of the circuit board of backlight lamp bar is obviously shortened, when connection not
There are problems that positioning accuracy is relatively difficult to guarantee, product yield is high.
Further, the present invention also provides a kind of display device, 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.It is carried on the back in display module
Light lamp bar establishes connection by COF flexible circuit board and main flexible circuit board, and backlight lamp bar is less than with a distance from COF flexible circuit board
Backlight lamp bar is connect through COF flexible circuit board with main flexible circuit board with a distance from main flexible circuit board, by backlight lamp bar, backlight
The lead of item need not be connected on main flexible circuit board across COF flexible circuit board, can be obviously shortened backlight lamp bar foundation
The length of lead when circuit connection improves the yield of product the problem of being relatively difficult to guarantee when connection there is no positioning accuracy.
Through the foregoing embodiment it is found that display module and display device of the invention, reached it is following the utility model has the advantages that
Backlight lamp bar establishes connection by COF flexible circuit board and main flexible circuit board in display module, to realize that master is soft
Property circuit board to the drive control of backlight lamp bar, backlight lamp bar is less than backlight lamp bar from main flexibility with a distance from COF flexible circuit board
Backlight lamp bar is connect through COF flexible circuit board with main flexible circuit board by circuit board distance, and the lead of backlight lamp bar need not be across
COF flexible circuit board is connected on main flexible circuit board, can be obviously shortened when backlight lamp bar establishes circuit connection by backlight
The length for the lead that lamp bar is drawn, backlight lamp bar directly connect with apart from close COF flexible circuit board, and there is no position when connection
The problem of precision is relatively difficult to guarantee improves the yield of product.
Although some specific embodiments of the invention are described in detail by example, the skill of this field
Art personnel it should be understood that example above merely to being illustrated, the range being not intended to be limiting of the invention.The skill of this field
Art personnel are it should be understood that can without departing from the scope and spirit of the present invention modify to above embodiments.This hair
Bright range is defined by the following claims.
Claims (10)
1. a kind of display module characterized by comprising
Display panel；
Backlight module is oppositely arranged with the display panel, wherein the backlight module includes backlight lamp bar；
Main flexible circuit board；
COF flexible circuit board, wherein the COF flexible circuit board and the display panel and the main flexible circuit board are distinguished
It is connected, the COF flexible circuit board, which can be bent, is placed in the backlight module far from described aobvious for the main flexible circuit board
Show the side of panel；
Wherein, the backlight lamp bar is connect through the COF flexible circuit board with the main flexible circuit board.
2. display module according to claim 1, which is characterized in that
The backlight lamp bar has backlight golden finger group, and the COF flexible circuit board has pad group, the backlight golden finger group
With the pad group welding.
3. display module according to claim 2, which is characterized in that
The COF flexible circuit board has the first main golden finger group, and the main flexible circuit board has the second main golden finger group, institute
It states the second main golden finger group and is electrically connected with the described first main golden finger group by anisotropic conductive adhesive paste.
4. display module according to claim 3, which is characterized in that
It include the first golden finger unit and the second golden finger unit, the first golden finger unit in the first main golden finger group
It is connect with the pad group by the cabling in the COF flexible circuit board.
5. display module according to claim 4, which is characterized in that
The anisotropic conductive adhesive paste is continuous one whole.
6. display module according to claim 4, which is characterized in that
The 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 that unit is electrically connected by first anisotropic conductive adhesive paste with the described second main golden finger group, the second golden finger unit is logical
Second anisotropic conductive adhesive paste is crossed to be electrically connected with the described second main golden finger group.
7. display module according to claim 4, which is characterized in that
It include that at least two golden fingers are connect with the pad group in the first golden finger unit, the two neighboring golden finger
Between spacing be 0.1mm, two golden fingers include positive golden finger and cathode golden finger；
The length of the anode golden finger and the cathode golden finger is 2.4mm, and the width of the anode golden finger is greater than etc.
It is more than or equal to 0.6mm in the width of 1.8mm, the cathode golden finger.
8. display module according to claim 2, which is characterized in that
The pad group have at least two pads, the pad size be 0.7mm × 3.1mm, the two neighboring pad it
Between spacing be 1.2mm.
9. display module according to claim 1, which is characterized in that
The display panel includes viewing area and the binding area that extends in a first direction, and the binding area is used to bind the COF
Flexible circuit board, the first direction is parallel with the plate face of the display panel,
When the COF flexible circuit board is in unfolded state, in a second direction, the display panel, the COF flexible circuit
Plate and the main flexible circuit board are set gradually, wherein the second direction is that the binding area is directed toward by the viewing area
Direction；
After the circuit board of the backlight lamp bar is drawn by the backlight lamp bar, it is soft that the COF is extended upwardly to along the second party
Property circuit board.
10. a kind of display device, which is characterized in that including the described in any item display modules of claim 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710906270.2A CN107481619B (en) | 2017-09-29 | 2017-09-29 | Display module and display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710906270.2A CN107481619B (en) | 2017-09-29 | 2017-09-29 | Display module and display device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107481619A CN107481619A (en) | 2017-12-15 |
| CN107481619B true CN107481619B (en) | 2019-09-24 |
Family
ID=60605645
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710906270.2A Active CN107481619B (en) | 2017-09-29 | 2017-09-29 | Display module and display device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107481619B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108156288B (en) * | 2018-01-02 | 2021-01-22 | 京东方科技集团股份有限公司 | Display module and preparation method thereof |
| CN109195322B (en) * | 2018-10-10 | 2020-01-17 | 南京中电熊猫平板显示科技有限公司 | Printed circuit board and display module |
| 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 |
| CN110989230B (en) * | 2019-12-27 | 2022-04-05 | 深圳市华星光电半导体显示技术有限公司 | Display device and electronic apparatus |
| 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 |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1841445A (en) * | 2005-04-01 | 2006-10-04 | 三星电子株式会社 | Display device |
| CN105027185A (en) * | 2013-02-28 | 2015-11-04 | 三星电子株式会社 | Display apparatus |
| WO2016121579A1 (en) * | 2015-01-29 | 2016-08-04 | 昭和電工株式会社 | Cof type semiconductor package and liquid crystal display device |
| CN106814484A (en) * | 2016-12-26 | 2017-06-09 | 友达光电股份有限公司 | Display device |
| CN107195253A (en) * | 2017-07-26 | 2017-09-22 | 武汉天马微电子有限公司 | Foldable flexible display device |
-
2017
- 2017-09-29 CN CN201710906270.2A patent/CN107481619B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1841445A (en) * | 2005-04-01 | 2006-10-04 | 三星电子株式会社 | Display device |
| CN105027185A (en) * | 2013-02-28 | 2015-11-04 | 三星电子株式会社 | Display apparatus |
| WO2016121579A1 (en) * | 2015-01-29 | 2016-08-04 | 昭和電工株式会社 | Cof type semiconductor package and liquid crystal display device |
| CN106814484A (en) * | 2016-12-26 | 2017-06-09 | 友达光电股份有限公司 | Display device |
| CN107195253A (en) * | 2017-07-26 | 2017-09-22 | 武汉天马微电子有限公司 | Foldable flexible display device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107481619A (en) | 2017-12-15 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107481619B (en) | Display module and display device | |
| CN204884440U (en) | Flexible display panel and flexible display device | |
| US7710406B2 (en) | Touch panel | |
| CN105717682B (en) | Touch display device | |
| CN108417151B (en) | Display device and chip on film structure thereof | |
| CN107632475B (en) | Display panel and display device | |
| CN208172458U (en) | display device and flexible circuit board | |
| US20070273672A1 (en) | Touch screen system and display device using the same | |
| CN209103039U (en) | A kind of display device | |
| CN109144320A (en) | Display panel and display device | |
| CN110416264A (en) | The binding method and display device of display device | |
| CN100458508C (en) | Signal transmission assembly and display using same | |
| CN101630079B (en) | Function integrating membrane and touch screen and backlight module adopting same | |
| CN105807514B (en) | Display device | |
| CN111463228A (en) | Display panel and display device | |
| CN110989230B (en) | Display device and electronic apparatus | |
| CN111796463A (en) | Display module | |
| CN207883684U (en) | A kind of binding structure of display device, anisotropic conductive film, electrode and display device | |
| JPH075487A (en) | Hybrid circuit board | |
| CN107283989B (en) | Pressing device and the method for pressing colloid on a display panel | |
| CN103026290B (en) | Assembling display device | |
| CN209624939U (en) | Display screen component and electronic device | |
| CN206236047U (en) | Touch screen | |
| JPS60129729A (en) | Liquid crystal display device | |
| CN210639396U (en) | Display panel and display device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |