CN107463033A - Display device - Google Patents
Display device Download PDFInfo
- Publication number
- CN107463033A CN107463033A CN201710780000.1A CN201710780000A CN107463033A CN 107463033 A CN107463033 A CN 107463033A CN 201710780000 A CN201710780000 A CN 201710780000A CN 107463033 A CN107463033 A CN 107463033A
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- CN
- China
- Prior art keywords
- circuit boards
- pcba circuit
- pcba
- cabling
- display device
- 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.)
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Classifications
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1345—Conductors connecting electrodes to cell terminals
- G02F1/13452—Conductors connecting driver circuitry and terminals of panels
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- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Mathematical Physics (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
Abstract
The invention discloses a kind of display device, including printed board unit and display panel, the display panel includes viewing area and positioned at the fan-out area at the viewing area edge, wherein, the printed board unit includes more than two PCBA circuit boards, and every PCBA circuit boards are connected to the fan-out area by COF chips；Corresponding to position spaced between two adjacent PCBA circuit boards, connection cabling is provided with the fan-out area, two adjacent PCBA circuit boards are connected to the connection cabling by each self-corresponding COF chips respectively, so that signal communication between adjacent adjacent two PCBA circuit boards.Signal communication is realized by the cabling in COF chips and fan-out area between the adjacent two PCBA circuit boards of the present invention, the assembly cost of large scale or curved-surface display device can be reduced.
Description
Technical field
The present invention relates to a kind of display device.
Background technology
Liquid crystal display (Liquid Crystal Display, LCD), it is the display device of planar ultra-thin, it is by certain
Colour or the monochrome pixels composition of quantity, are positioned in front of light source or reflecting surface.Liquid crystal display power consumption is very low, and has
High image quality, small volume, it is in light weight the characteristics of, therefore favored by everybody, turn into the main flow of display.
Thin Film Transistor-LCD (TFT-LCD) is one of principal item that current flat panel is shown, the film is brilliant
Body pipe liquid crystal display is by a thin film transistor switch come the input of control data signal, and then control interface is shown.Fig. 1 is
TFT-LCD drives configuration diagram in the prior art, and the existing main driving principles of TFT-LCD include：System board presses R/G/B
Contracting signal, control signal and power pass through wire rod and PCBA (Printed Circuit Board Assembly, printed circuit board (PCB)
Component, i.e., pcb board that is welded, assembling electronic component) plate 2 is connected, and PCBA board 2 passes through COF chips (Chip on
Film, chip on film chip) 3 display panel 1 is connected to, to the input drive signal of display panel 1.Wherein, display panel 1
It is connected to including viewing area 4 and by COF chips 3 described positioned at the fan-out area 5 at the edge of viewing area 4, PCBA board 2
Fan-out area 5.Wherein, as shown in figure 1, display panel 1 for large-size, PCBA board 2 need to be arranged to two sections, commonly referred to as
For left side printed circuit board (PCB) 2 and the right printed circuit board (PCB) 2, being divided into two sections of main causes is：If only use one section of longer PCBA
Plate, the end of the golden finger on tellite and COF chips is located at caused by natural cause of expanding with heat and contract with cold during actual load
Son, which produces, contacts bad problem.
With advances in technology, large scale display panel and curved surface (Curved Display) display panel start to occupy
Increasingly consequence.With the increasing of panel size, the length of PCBA board can also increase therewith, when the size of display panel
When increasing to 65 inches, the length of display panel alreadys exceed 1400mm, and the length of the PCBA boards of two sections of designs will exceed existing
The upper limit that process capability can reach, pcb board is often split as four-part form design at this time.As shown in Fig. 2 the left side
Two sections of pcb boards 2a and 2b, two sections of pcb board 2a and 2b needs pass through connection to printed circuit board (PCB) 2 again respectively with the right printed circuit board (PCB) 2
Device realizes signal communication.For curved face display panel, for curved face display panel when being bent, PCBA board 2 also can therewith together
Bending, in order to preferably make PCBA board 2 reach the effect of bending, it can generally also use the PCB design of multisection type.
The mode of signal communication is realized for two sections of pcb boards 2a and 2b, as shown in figure 3, being set on two sections of pcb boards 2a and 2b
Extra connector 6, then reuse FPC (Flexible Printed Circuit) or FFC (Flexible Flat
Cable) connecting line 7 realizes that signal connects between two connectors 6.In this connected mode, it is necessary in two sections of pcb board 2a and
Extra connector 6 is designed on 2b, and also to be increased using FPC or FFC connecting lines 7, these can all cause it is considerable into
This rising, product competitiveness is adversely affected.
Therefore, prior art has yet to be improved and developed.
The content of the invention
In view of this, the invention provides a kind of display device, including the PCBA board of multisection type, by multisection type
PCBA board between signal connected mode improvement, significantly reduce the cost of display device, improve product competitiveness.
To achieve the above object, present invention employs following technical scheme：
A kind of display device, including printed board unit and display panel, the display panel include viewing area and
Positioned at the fan-out area at the viewing area edge, wherein, the printed board unit includes two of spaced arrangement
PCBA circuit boards above, each PCBA circuit boards are connected to the fan-out area by COF chips；Corresponding to adjacent
The first PCBA circuit boards and the 2nd PCBA circuit boards between spaced position, be provided with for connecting on the fan-out area
Connect the connection cabling of the first PCBA circuit boards and the 2nd PCBA circuit boards, the first PCBA circuit boards and the 2nd the PCBA electricity
Road plate is connected to the connection cabling by each self-corresponding COF chips respectively, so that the first adjacent PCBA circuit boards and
Signal communication between two PCBA circuit boards.
Preferably, be provided with the first cabling area in the COF chips, the first cabling area include display signal lead and
Dummy cablings positioned at the display signal lead both sides, the first PCBA circuit boards and the 2nd PCBA circuit boards pass through each
Dummy cablings in self-corresponding COF chips are connected to the connection cabling.
Specifically, be connected between each PCBA circuit boards and the fan-out area two of spaced arrangement with
On COF chips；Wherein, the first PCBA circuit boards are connected by the COF chips of the closest 2nd PCBA circuit boards
The connection cabling is connected to, the 2nd PCBA circuit boards are connected by the COF chips of the closest first PCBA circuit boards
It is connected to the connection cabling.
Specifically, the printed board unit includes two PCBA circuit boards of spaced arrangement, each described
The length of PCBA circuit boards is 200~400mm.
Specifically, the display device includes two printed board units.
Preferably, the first cabling area and the second cabling area outside the first cabling area are provided with the COF chips,
The first cabling area, which is used to input to the viewing area, shows signal；The PCBA circuit boards pass through the second cabling area
It is connected to the connection cabling.
Specifically, be connected between each PCBA circuit boards and the fan-out area two of spaced arrangement with
On COF chips；Wherein, the first PCBA circuit boards are connected by the COF chips of the closest 2nd PCBA circuit boards
The connection cabling is connected to, the 2nd PCBA circuit boards are connected by the COF chips of the closest first PCBA circuit boards
It is connected to the connection cabling.
Specifically, the printed board unit includes two PCBA circuit boards of spaced arrangement, each described
The length of PCBA circuit boards is 200~400mm.
Specifically, the display device includes two printed board units.
Specifically, the display panel is curved face display panel and/or the size of display panels is more than 50 inches.
Compared to prior art, display device provided in an embodiment of the present invention, including the PCBA board of multisection type, pass through
Connection cabling is set in the fan-out area of display panel, and multisection type is realized using COF chips existing in display device
Signal connection between PCBA board, thus, it is not necessary to extra connector is designed on pcb board, it is not required that extra increase makes
With FPC or FFC connecting lines, the cost of display device is significantly reduced, improves product competitiveness.
Brief description of the drawings
Fig. 1 is that TFT-LCD drives configuration diagram in the prior art；
Fig. 2 is the structural representation that four-part form pcb board is used in the driving framework such as Fig. 1；
Fig. 3 is such as the enlarged diagram of part A in Fig. 2；
Fig. 4 is the structural representation for the display device that the embodiment of the present invention 1 provides；
Fig. 5 is such as the enlarged diagram of part B in Fig. 4；
Fig. 6 is the structural representation of two PCBA circuit board signals connection adjacent in the embodiment of the present invention 2.
Embodiment
To make the object, technical solutions and advantages of the present invention clearer, below in conjunction with the accompanying drawings to the specific reality of the present invention
The mode of applying is described in detail.The example of these preferred embodiments is illustrated in the accompanying drawings.Shown in accompanying drawing and according to
What the embodiments of the present invention of accompanying drawing description were merely exemplary, and the present invention is not limited to these embodiments.
Here, it should also be noted that, in order to avoid having obscured the present invention because of unnecessary details, in the accompanying drawings only
Show and according to the solution of the present invention closely related structure and/or processing step, and eliminate little with relation of the present invention
Other details.
Embodiment 1
A kind of display device is present embodiments provided, as shown in figure 4, described including printed board unit 20 and display surface
Plate 10, the display panel 10 include viewing area 11 and positioned at the fan-out area 12 at the viewing area edge 11, the prints
Printed circuit board unit 20 is connected to the display panel 10 by COF chips 30, to input driving letter to the display panel 10
Number.
Specifically, in the present embodiment, the display device includes two printed board units 20, corresponds respectively to
The left field and right side area of the display panel 10.Certainly, in some other embodiments, when the display panel 10
Size it is very big when, the greater number of printed board unit 20 can also be provided with.Wherein, each printed circuit
Slab element 20 includes two PCBA circuit boards 21a, 21b of spaced arrangement, and each described PCBA circuit boards 21a, 21b pass through
COF chips 30 are connected on the fan-out area 12, also, in the same printed board unit 20, adjacent two
PCBA circuit board 21a, 21b signal connect.It should be noted that in some other embodiments, each printed circuit
Slab element 20 can also include PCBA circuit boards 21a, 21b of greater number of spaced arrangement, and specific quantity needs root
Determined according to the size of display panel.
Wherein, the display panel 10 mainly large-sized display panel, for example, more than 50 inches.Further,
The display panel 10 can also be curved face display panel.Two printed board units 20 above, each print
Printed circuit board unit 20 includes two PCBA circuit board 21a, 21b of spaced arrangement again, forms four-part form pcb board, thus
Each described PCBA circuit boards 21a, 21b length can set smaller.For large-sized display panel, can avoid because
The golden finger that natural cause of expanding with heat and contract with cold causes to be located on tellite produces with the terminal of COF chips contacts bad ask
Topic；For curved face display panel, the pcb board of transmission signal can be caused there is good bending effect again.Preferably, Mei Yisuo
The length for stating PCBA circuit boards 21a, 21b is selected in the range of 200~400mm.
Wherein, refering to Fig. 4 and Fig. 5, on the fan-out area 12 of the display panel 10, corresponding to the first adjacent PCBA
Spaced position 12a between circuit board 21a and the 2nd PCBA circuit boards 21b, it is provided with for connecting the first PCBA
Circuit board 21a and the 2nd PCBA circuit boards 21b connection cabling 13, the first PCBA circuit boards 21a and the 2nd PCBA circuits
Plate 21b is connected to the connection cabling 13 by each self-corresponding COF chips 30 respectively, so that the first adjacent PCBA circuit boards
Signal communication between 21a and the 2nd PCBA circuit boards 21b.
In the present embodiment, the COF chips 30 use the COF chips of existing structure.Specifically, it is as shown in figure 5, described
The first cabling area 31 is provided with COF chips 30, the first cabling area 31 includes display signal lead 31a and positioned at described aobvious
Show the Dummy cablings 31b of signal lead 31a both sides.The first PCBA circuit boards 21a and the 2nd PCBA circuit boards 21b pass through
Dummy cablings 31b in each self-corresponding COF chips 30 is connected to the connection cabling 13.Normally, in traditional framework,
The Dummy cablings 31b of the COF chips 30 is idle, it is not necessary to any signal is connected, in the present embodiment, by showing
The fan-out area 12 of panel 10 sets connection cabling 13, and uses the Dummy cablings in COF chips 30 existing in display device
31b is connected to connection cabling 13, thus that adjacent the first PCBA circuit boards 21a and the 2nd PCBA circuit boards 21b is mutually electrical
Connection, the signal connection between the PCBA board of multisection type is realized, compared to prior art, it is not necessary to design volume on pcb board
Outer connector, it is not required that extra increase uses FPC or FFC connecting lines, significantly reduces the cost of display device, carries
High product competitiveness.
Further, as shown in figure 4, being connected between each described PCBA circuit boards 21a, 21b and the fan-out area 12
There are more than two COF chips 30 of spaced arrangement, the specific quantity of the COF chips 30 is set according to being actually needed
It is fixed.Wherein, the first PCBA circuit boards 21a is connected by closest 2nd PCBA circuit boards 21b COF chips 30
To the connection cabling 13, the COF that the 2nd PCBA circuit boards 21b passes through the closest first PCBA circuit boards 21a
Chip 30 is connected to the connection cabling 13.
Embodiment 2
As different from Example 1, in the present embodiment, as shown in fig. 6, increase is provided with second in the COF chips 30
Cabling area 32, described PCBA circuit boards 21a, 21b are connected to the connection cabling 13 by the second cabling area 32.
Specifically, it is same as Example 1 in the COF chips 30, it is provided with the first cabling area 31, described
One cabling area 31 includes the display signal lead 31a and Dummy cabling 31b positioned at the display signal lead 31a both sides, with reality
Apply unlike example 1, increase on the outside of the Dummy cablings 31b and be provided with the second cabling area 32.The second cabling area 32 is
Dedicated for by PCBA circuit boards 21a, 21b be connected to it is described connection cabling 13 so that the first adjacent PCBA circuit boards 21a and
Signal communication between 2nd PCBA circuit boards 21b.
In embodiment 1, used Dummy cablings 31b in COF chips 30 by PCBA circuit boards 21a, 21b with it is described
Connection cabling 13 connects, and Dummy cablings 31b and display signal lead 31a distances are too near, two adjacent PCBA circuit boards 21a,
Signal transmission between 21b is possible to that the display signal on display signal lead 31a can be interfered.Therefore, in this implementation
In example, increase on the outside of the Dummy cablings 31b and be provided with dedicated for PCBA circuit boards 21a, 21b are connected into the company
The second cabling area 32 of cabling 13 is met, avoids and the display signal on display signal lead 31a is interfered.
In summary, display device provided in an embodiment of the present invention, including the PCBA board of multisection type, by showing
The fan-out area of panel sets connection cabling, and using COF chips existing in display device realize multisection type PCBA board it
Between signal connection, thus, it is not necessary to extra connector is designed on pcb board, it is not required that extra increase using FPC or
FFC connecting lines, the cost of display device is significantly reduced, improve product competitiveness.
It should be noted that herein, such as first and second or the like relational terms are used merely to a reality
Body or operation make a distinction with another entity or operation, and not necessarily require or imply and deposited between these entities or operation
In any this actual relation or order.Moreover, term " comprising ", "comprising" or its any other variant are intended to
Nonexcludability includes, so that process, method, article or equipment including a series of elements not only will including those
Element, but also the other element including being not expressly set out, or it is this process, method, article or equipment also to include
Intrinsic key element.In the absence of more restrictions, the key element limited by sentence "including a ...", it is not excluded that
Other identical element also be present in process, method, article or equipment including the key element.
Described above is only the embodiment of the application, it is noted that for the ordinary skill people of the art
For member, on the premise of the application principle is not departed from, some improvements and modifications can also be made, these improvements and modifications also should
It is considered as the protection domain of the application.
Claims (10)
1. a kind of display device, including printed board unit and display panel, the display panel includes viewing area and position
In the fan-out area at the viewing area edge, it is characterised in that the printed board unit includes spaced arrangement
More than two PCBA circuit boards, each PCBA circuit boards are connected to the fan-out area by COF chips；Corresponding to
Spaced position between the first adjacent PCBA circuit boards and the 2nd PCBA circuit boards, use is provided with the fan-out area
In the connection cabling for connecting the first PCBA circuit boards and the 2nd PCBA circuit boards, the first PCBA circuit boards and second
PCBA circuit boards are connected to the connection cabling by each self-corresponding COF chips respectively, so that the first adjacent PCBA circuits
Signal communication between plate and the 2nd PCBA circuit boards.
2. display device according to claim 1, it is characterised in that the first cabling area, institute are provided with the COF chips
Stating the first cabling area includes display signal lead and the Dummy cablings positioned at the display signal lead both sides, and described first
PCBA circuit boards and the 2nd PCBA circuit boards are connected to the connection by the Dummy cablings in each self-corresponding COF chips and walked
Line.
3. display device according to claim 2, it is characterised in that each PCBA circuit boards and the fan-out area
Between be connected with more than two COF chips of spaced arrangement；Wherein, the first PCBA circuit boards pass through closest
The COF chips of the 2nd PCBA circuit boards are connected to the connection cabling, and the 2nd PCBA circuit boards pass through closest
The COF chips of the first PCBA circuit boards are connected to the connection cabling.
4. display device according to claim 3, it is characterised in that the printed board unit includes spaced row
Two PCBA circuit boards of row, the length of each PCBA circuit boards is 200~400mm.
5. display device according to claim 3, it is characterised in that the display device includes two printed circuits
Slab element.
6. display device according to claim 1, it is characterised in that be provided with the COF chips the first cabling area and
The second cabling area outside the first cabling area, the first cabling area, which is used to input to the viewing area, shows signal；
The PCBA circuit boards are connected to the connection cabling by the second cabling area.
7. display device according to claim 6, it is characterised in that each PCBA circuit boards and the fan-out area
Between be connected with more than two COF chips of spaced arrangement；Wherein, the first PCBA circuit boards pass through closest
The COF chips of the 2nd PCBA circuit boards are connected to the connection cabling, and the 2nd PCBA circuit boards pass through closest
The COF chips of the first PCBA circuit boards are connected to the connection cabling.
8. display device according to claim 6, it is characterised in that the printed board unit includes spaced row
Two PCBA circuit boards of row, the length of each PCBA circuit boards is 200~400mm.
9. display device according to claim 6, it is characterised in that the display device includes two printed circuits
Slab element.
10. according to any described display devices of claim 1-9, it is characterised in that the display panel is curved-surface display face
Plate and/or the size of display panels are more than 50 inches.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710780000.1A CN107463033A (en) | 2017-09-01 | 2017-09-01 | Display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710780000.1A CN107463033A (en) | 2017-09-01 | 2017-09-01 | Display device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107463033A true CN107463033A (en) | 2017-12-12 |
Family
ID=60550917
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710780000.1A Pending CN107463033A (en) | 2017-09-01 | 2017-09-01 | Display device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107463033A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110047377A (en) * | 2018-01-17 | 2019-07-23 | 三星显示有限公司 | Display device |
| CN110767089A (en) * | 2019-10-29 | 2020-02-07 | 深圳市华星光电技术有限公司 | Structure and method for solving poor bending of curved surface display device |
| WO2020093683A1 (en) * | 2018-11-09 | 2020-05-14 | 重庆先进光电显示技术研究院 | Printed circuit board, and display connection structure containing same |
| CN111435207A (en) * | 2019-01-15 | 2020-07-21 | 咸阳彩虹光电科技有限公司 | Display device and electronic equipment |
| CN113745251A (en) * | 2021-08-27 | 2021-12-03 | Tcl华星光电技术有限公司 | Display panel and mobile terminal |
| CN115240545A (en) * | 2022-06-10 | 2022-10-25 | Tcl华星光电技术有限公司 | Display panel |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110047377A (en) * | 2018-01-17 | 2019-07-23 | 三星显示有限公司 | Display device |
| WO2020093683A1 (en) * | 2018-11-09 | 2020-05-14 | 重庆先进光电显示技术研究院 | Printed circuit board, and display connection structure containing same |
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| CN110767089A (en) * | 2019-10-29 | 2020-02-07 | 深圳市华星光电技术有限公司 | Structure and method for solving poor bending of curved surface display device |
| CN110767089B (en) * | 2019-10-29 | 2021-05-28 | Tcl华星光电技术有限公司 | Structure and method for solving poor bending of curved surface display device |
| CN113745251A (en) * | 2021-08-27 | 2021-12-03 | Tcl华星光电技术有限公司 | Display panel and mobile terminal |
| CN115240545A (en) * | 2022-06-10 | 2022-10-25 | Tcl华星光电技术有限公司 | Display panel |
| CN115240545B (en) * | 2022-06-10 | 2023-10-13 | Tcl华星光电技术有限公司 | display panel |
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