CN208110205U - Display device and electronic equipment - Google Patents
Display device and electronic equipment Download PDFInfo
- Publication number
- CN208110205U CN208110205U CN201820694857.1U CN201820694857U CN208110205U CN 208110205 U CN208110205 U CN 208110205U CN 201820694857 U CN201820694857 U CN 201820694857U CN 208110205 U CN208110205 U CN 208110205U
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- circuit board
- flexible circuit
- display
- display area
- display device
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- 239000000758 substrate Substances 0.000 abstract description 13
- 239000011521 glass Substances 0.000 abstract description 12
- 239000004020 conductor Substances 0.000 description 13
- 238000010586 diagram Methods 0.000 description 8
- 239000004973 liquid crystal related substance Substances 0.000 description 6
- 230000000694 effects Effects 0.000 description 4
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000002238 attenuated effect Effects 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
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- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
Abstract
This application discloses a kind of display device and electronic equipments.The display device includes display panel, including display area and non-display area, and the non-display area includes connection cabling；And display driver chip, positioned at the non-display area, it is connected with the connection cabling, and it is connected via the first flexible circuit board with printed circuit board, it is characterized in that, at least part connection cabling in the non-display area is connected via first flexible circuit board with the display driver chip.Display device and electronic equipment provided by the utility model connect the part being initially positioned on non-display area glass substrate in cabling rewiring to flexible circuit board, reduce the impedance of connection cabling, reduce the distortion of waveform output, promotes image quality, enhance the market competitiveness of display device.
Description
Technical field
The utility model relates to technical field of liquid crystal display, and in particular to a kind of display device and electronic equipment.
Background technique
Currently, liquid crystal display device because fuselage is thin, power saving, it is radiationless the advantages that, be widely applied.Fig. 1 shows existing
There is the display device structure schematic diagram in technology, as shown in Figure 1, display device 100 includes liquid crystal display panel 11 and printing electricity
Road plate 12, liquid crystal display panel 11 are connect with printed circuit board 12 by flexible circuit board 17, and liquid crystal display panel 11 includes aobvious
Show region 13 and the non-display area 14 around display area 13.Binding display driving core is integrated in non-display area 14
Piece 15, and it is disposed with connection cabling 16.Display driver chip 15 with connect cabling 16 in non-display area 14 and bind, so as to
Pixel unit in driving display area 13 is shown.
However, the connection cabling 16 due to such design in non-display area 14 is arranged on the glass substrate, cause to show
It is larger that line impedence is walked in the connection of 11 edge of panel, causes signal to decay, waveform output distortion is serious, and it is abnormal to cause image quality.
Utility model content
In view of this, the purpose of this utility model is to provide a kind of display device, by making part connect cabling distribution
On flexible circuit board or printed circuit board, reduce the length for connecting cabling on glass substrate, connection cabling can be substantially reduced
Total impedance drops low signal attenuation, so as to improve display effect.
A kind of display device is provided according to the utility model, including：Display panel, the display panel include display area
And non-display area, the non-display area edge are provided with connection cabling；Display driver chip is located at the non-display area
Domain is connected with the connection cabling；And further include the first flexible circuit board and printed circuit board, the printed circuit board passes through
First flexible circuit board is connected with the display driver chip, the connection of at least part in the non-display area
Cabling is connected via first flexible circuit board with the display driver chip.
Preferably, the display driver chip includes source driving chip and sequence controller；The connection cabling includes
A plurality of source electrode line for being connected with source driving chip and a plurality of grid line for being connected with sequence controller.
Preferably, the grid line in the non-display area is connected to the timing control via first flexible circuit board
Device processed.
Preferably, a plurality of grid line is connected to the sequence controller from the both sides of the display panel respectively.
Preferably, the display device further includes：Second flexible circuit board and third flexible circuit board, described second is flexible
Circuit board and the third flexible circuit board are located at first flexible circuit board two sides.
Preferably, described at least part connection cabling passes through second flexible circuit board and the third respectively
After flexible circuit board is connected to the printed circuit board, then the display is connected to via first flexible circuit board and drives core
Piece.
Preferably, first flexible circuit board extends to the other side from the side at the display panel edge.
Preferably, at least part connection cabling in the non-display area is respectively from the two of the display panel
Side is connected to after first flexible circuit board is connected to the printed circuit board, then through first flexible circuit board
The display driver chip.
The utility model also provides a kind of electronic equipment, including display device described above.
Display device provided by the utility model and electronic equipment change the connection cabling connecting with display driver chip
Routing path, a part of cabling is routed on flexible circuit board, make signal along connection cabling exported by sequence controller after
Display area is sent to again after flexible circuit board and printed circuit board, because connecting on flexible circuit board and printed circuit board
Cabling is copper wire, is found by calculating, and line impedance can be greatly reduced in this way by improving, and solves to draw caused by signal decaying different etc.
Problem, it is user-friendly.
Detailed description of the invention
By referring to the drawings to the description of the utility model embodiment, above-mentioned and other mesh of the utility model
, feature and advantage will be apparent from.
Fig. 1 shows the structural schematic diagram of display device in the prior art.
Fig. 2 shows the structural schematic diagrams of the display device of the utility model first embodiment.
Fig. 3 shows the structural schematic diagram of the display device of the utility model second embodiment.
Fig. 4 shows the structural schematic diagram of the display device of the utility model 3rd embodiment.
Specific embodiment
Hereinafter reference will be made to the drawings is more fully described the various embodiments of the utility model.In various figures, identical
Element is indicated using same or similar appended drawing reference.For the sake of clarity, the various pieces in attached drawing are not drawn to draw
System.
It should be noted that herein, relational terms such as first and second and the like are used merely to a reality
Body or operation are distinguished with another entity or operation, are deposited without necessarily requiring or implying between these entities or operation
In any actual relationship or order or sequence.Moreover, the terms "include", "comprise" or any other variant be intended to it is non-
It is exclusive to include, so that article or equipment including a series of elements not only include those elements, but also including
Other elements that are not explicitly listed.In the absence of more restrictions, the element limited by sentence "including a ...",
Be not precluded include the element article or equipment in there is also other identical elements.
Fig. 2 shows the structural schematic diagrams of the display device of the utility model first embodiment.
As shown in Fig. 2, the display device 200 of the present embodiment includes display panel 21 and the flexible circuit board being attached thereto
27, flexible circuit board 27 includes the first flexible circuit board 271, and display panel 21 is including display area 23 and is centered around display area
Non-display area 24 around 23, non-display area 24 include connection cabling 26；Display driver chip 25 is located at non-display area
In 24, connected with cabling 26 is connect, and be connected via the first flexible circuit board 271 with printed circuit board 22.Non-display area
At least part connection cabling 26 in 24 is connected via the first flexible circuit board 271 with display driver chip 25.
Display driver chip 25 is located at the marginal center of non-display area 24, including source driving chip and timing control
Device, connection cabling 26 include a plurality of source electrode line (not shown) for being connected with source driving chip and are used for and timing
The connected a plurality of grid line of controller, the grid line in non-display area 24 are connected to timing via the first flexible circuit board 271
Controller.And a plurality of grid line is connected to sequence controller from the two sides of display panel 21 respectively.That is connection cabling 26 is from surrounding
Two sides of the non-display area 24 of display area 23 start to extend, and are connected to respectively by the first flexible circuit board 271
Display driver chip 25.
Preferably, display area includes the interlaced scan line and data line of a plurality of marshalling, multi-strip scanning line
Intersect multiple pixels (pixel) unit for limiting and being formed and being arranged in array, each pixel unit with multiple data lines mutually insulated
Including three sub-pixel units, TFT is equipped in each sub-pixel unit.Each TFT includes grid, source electrode and drain electrode, wherein
Grid is electrically connected corresponding scan line, and source electrode is electrically connected corresponding data line.Each data line is connected to inside display panel 21
Source driving chip, each scan line are connected to the grid drive chip in panel, control source drive core by sequence controller
The working condition of piece and grid drive chip.Because cabling is etched on glass in the present embodiment, it is not provided with grid drive
Moving cell, but still select to need open sub-pixel unit in each pixel unit by source driving chip, pass through timing
The scanning sequency of the signal control scan line of controller output.
Clock signal part in the present embodiment is made of 8 AC signals, is exported by sequence controller to gate electrode side
On grid line, for controlling the progressive scan of gate lines, so that the pixel unit that control is attached thereto beats Push And Release line by line
It closes.I.e. connection cabling 26 extends from the two sides of the non-display area 24 around display area 23 by the first flexible circuit board 271
To display driver chip 25, then controls signal and exported by the sequence controller of display driver chip 25 to 21 two sides of display panel
Grid line controls the opening and closing of pixel unit.
Specifically, display driver chip 25 is located at the bottom edge marginal center of non-display area 24, the first flexible circuit board 271
Positioned at the lower section of display driver chip 25.Cabling 26 is connected directly by the end of display driver chip 25 and the first flexible circuit board
271 connections, connection 26 points of both directions of cabling are routed, extend respectively from 21 two sides of display panel, pass through the first flexible circuit board
271 are connected to the both ends of display driver chip 25.Preferably, the connection cabling 26 along two sides distribution includes more connecting lines, this
In for the ease of observation, replaced with a thick cabling.
The flexible circuit board 27 of display device 200 in the present embodiment further includes：Second flexible circuit board 272 and third are soft
Property circuit board 273, the second flexible circuit board 272 and third flexible circuit board 273 are located at the two of the first flexible circuit board 271
Side also is located on the edge of non-display area 24.At least part along the non-display area 24 of two sides distribution connects cabling 26
Printed circuit is connected to from the two sides of display panel 21 by the second flexible circuit board 272 and third flexible circuit board 273 respectively
After plate 22, then via the first flexible circuit board 271 it is connected to display driver chip 25.The company of the display device 200 of the present embodiment
Connecing cabling 26 includes the connection cabling 261 on flexible circuit board 27 and the connection cabling 262 on printed circuit board 22.
In the prior art of Fig. 1, connection cabling 16 is located on the glass substrate at 14 edge of non-display area, and this implementation
In example, at least part connection cabling 26 of non-display area 24 is moved to and the sequentially connected flexible circuit of non-display area 24
On plate 27 and printed circuit board 22.It designs in this way, can reduce the total impedance of connection cabling, calculate two below by formula comparison
The cabling total impedance of kind cabling mode.
Impedance computation formula is：R=ρ * L/S=ρ * 2L/ [(a+b) * h].
Wherein, R is conductor resistance, unit：Ohm；L is conductor length；ρ be conductor resistance rate (material and manufacturer are different,
Conductor resistance rate also can be different)；S is conductor cross sectional area (for conductor after overetch, cross sectional shape is generally trapezoidal), and a is conducting wire
Upper bottom width, b are conducting wire bottom width, and h is conductor thickness.By taking common 13.3 cun of liquid crystal display as an example, two kinds are calculated
Connect the impedance of cabling：
The former connection cabling of the prior art, cabling etches on the glass substrate, through Array software (Data Analysis Software)
It calculates, the simulated impedance value R of the substrate cabling of the prior art1=650 Ω.
The present embodiment connects cabling, is predominantly located in outside display panel 21, and only fraction is located on glass substrate, warp
Line impedence R is walked in Array software (Data Analysis Software) simulation, substrate connectionWOA=0.8 Ω；Conductor resistance on flexible circuit board
Rate ρ=1.75*10^-8, the bottom width degree up and down of the connection cabling on flexible circuit board, conductor thickness, conductor length are respectively：a
=45um, b=50um, h=12um, L=24mm, is calculated, and line impedence R is walked in flexible circuit board connectionFPC=0.737 Ω；Print
Conductor resistance rate on printed circuit board, the bottom width degree up and down of connection cabling thereon, conductor thickness, conductor length are respectively：ρ=
1.75*10^-8, a=101.6um, b=101.6um, h=18um, L=110mm are calculated, and printed circuit board connects cabling
Impedance RPCB=1.057 Ω.So the total impedance R of the connection cabling of the present embodiment2=RWOA+RFPC+RPCB=0.8 Ω+0.737
Ω+1.057 Ω=2.594 Ω.
It can be learnt by calculating：2.594Ω<<650 Ω, i.e. R2<<The line impedence of walking of R1, i.e. the present embodiment are much smaller than now
Have in technology and walk line impedence, be distorted by big impedance bring, thus problem of signal attenuation can solve.
The display device of the utility model embodiment, changes connection wiring path, and script is located at one on glass substrate
Part connection cabling is transferred on flexible circuit board and printed circuit board, because connection cabling is metal wire (such as copper),
Impedance on flexible circuit board and printed circuit board is much smaller than the impedance on glass substrate, by experimental verification, by formula of impedance
The total impedance for calculating new and old connection cabling finds that improved connection is walked line impedence and substantially reduced, can solve signal attenuation band
The image quality problem come promotes display effect.
Fig. 3 shows the structural schematic diagram of the display device of the utility model second embodiment.
The present embodiment is basically the same as the first embodiment, and is all that script is located at a part of cabling on glass substrate to be displaced downwardly to
Outside display panel, the present embodiment has only done some small variations on the basis of example 1.The display of the present embodiment fills
Setting 300 also includes：Display panel 31, including display area 33 and non-display area 34；Printing outside display panel 31
Circuit board 32；Display driver chip 35 positioned at 34 edge of non-display area；And connect display driver chip 35 and printing electricity
The flexible circuit board of road plate 32, non-display area 34 include connection cabling 36.
The present embodiment the difference is that, the flexible circuit board of the present embodiment only includes the first flexible circuit board 37, directly
It connects from the side of display panel 31 and extends to the other side；And at least part connection cabling 36 in non-display area 34 is direct
It is connected to display driver chip 35 via the first flexible circuit board 37, without printed circuit board 32.The present embodiment track lengths
Reduce, impedance is smaller, and the effect for greatly reducing impedance also may be implemented compared with prior art.
Fig. 4 shows the structural schematic diagram of the display device of the utility model 3rd embodiment.
The present embodiment is also essentially identical with embodiment one, and the display device 400 of the present embodiment also includes：Display panel 41,
Including display area 43 and non-display area 44；Printed circuit board 42 outside display panel 41；Positioned at non-display area
The source driving chip 45 at 44 edges；And the flexible circuit board of connection display driver chip 45 and printed circuit board 42.
The flexible circuit board of the present embodiment is identical with embodiment two, the first flexible circuit board 47 is only included, from display panel
The side at 41 edges extends to the other side, and the connection arrangement of cabling 46, which is the same as example 1, (including is located at the first flexible circuit board
Connection cabling 461 on 47 and the connection cabling 462 on printed circuit board 42), at least one in non-display area 44
Divide connection cabling 46 respectively from the two sides of display panel 41 after the first flexible circuit board 47 is connected to printed circuit board 42, then
Display driver chip 45 is connected to by the first flexible circuit board 47.Compared with prior art, impedance greatly reduces the present embodiment, can
Effectively to avoid the big bring distorted signals problem of impedance.
Above-described embodiment is some citings about the utility model, and other embodiments can also have other forms.
The utility model also provides a kind of electronic equipment, including any display device described in above-described embodiment and its
The part that he needs.The electronic equipment includes but is not limited to mobile phone, tablet computer (Pad), personal computer (PC), intelligent hand
Table etc..
Display device provided by the utility model and electronic equipment, by the previous glass substrate edge for being located at display panel
On display driver chip and gate electrode side between part connection cabling redesign, make its grid from both sides of the display panel
Side, the timing control being connected to respectively via the flexible circuit board and printed circuit board that are connected with display panel in display driver chip
Device processed.Using such design, it can avoid being routed in glass substrate edge, the impedance of connection cabling can be greatly reduced, to reach
The purpose to decay to attenuated signal, promotes the image quality effect of display device.
Finally it should be noted that：As described above according to the embodiments of the present invention, there is no detailed for these embodiments
All details are described, also not limiting the utility model is only the specific embodiment.Obviously, as described above, can make
Many modifications and variations.All any modification, equivalent replacement, improvement within the spirit and principle of the utility model
Deng should be included within the scope of protection of this utility model.The present embodiment is chosen and specifically described to this specification, is in order to more
The principles of the present invention and practical application are explained well, so that skilled artisan be enable to utilize this reality well
It is used with novel and on the basis of the utility model modification.The utility model only by claims and its full scope and
The limitation of equivalent.
Claims (9)
1. a kind of display device, including：
Display panel, the display panel include display area and non-display area, and the non-display area edge is provided with company
Connect cabling；
Display driver chip is located at the non-display area, is connected with the connection cabling；It and further include the first flexible circuit
Plate and printed circuit board, the printed circuit board are connected by first flexible circuit board with the display driver chip,
It is characterized in that, at least part connection cabling in the non-display area is via first flexible circuit board
It is connected with the display driver chip.
2. display device according to claim 1, which is characterized in that
The display driver chip includes source driving chip and sequence controller；
The connection cabling includes a plurality of source electrode line for being connected with source driving chip and is used for and sequence controller phase
A plurality of grid line even.
3. display device according to claim 2, which is characterized in that the grid line in the non-display area is via described
First flexible circuit board is connected to the sequence controller.
4. display device according to claim 3, which is characterized in that a plurality of grid line is respectively from the display panel
Two sides are connected to the sequence controller.
5. display device according to claim 1, which is characterized in that further include：Second flexible circuit board and third are flexible
Circuit board, second flexible circuit board and the third flexible circuit board are located at first flexible circuit board two sides.
6. display device according to claim 5, which is characterized in that at least part connection cabling passes through respectively
Cross second flexible circuit board and after the third flexible circuit board is connected to the printed circuit board, then via described first
Flexible circuit board is connected to the display driver chip.
7. display device according to claim 1, which is characterized in that first flexible circuit board is from the display panel
The side at edge extends to the other side.
8. display device according to claim 7, which is characterized in that described at least part in the non-display area
Connect cabling respectively from the two sides of the display panel after first flexible circuit board is connected to the printed circuit board,
The display driver chip is connected to by first flexible circuit board again.
9. a kind of electronic equipment, which is characterized in that including：Display device according to any one of claim 1 to 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820694857.1U CN208110205U (en) | 2018-05-10 | 2018-05-10 | Display device and electronic equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820694857.1U CN208110205U (en) | 2018-05-10 | 2018-05-10 | Display device and electronic equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208110205U true CN208110205U (en) | 2018-11-16 |
Family
ID=64113789
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820694857.1U Active CN208110205U (en) | 2018-05-10 | 2018-05-10 | Display device and electronic equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208110205U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024041344A1 (en) * | 2022-08-23 | 2024-02-29 | 华为技术有限公司 | Display panel and display apparatus |
-
2018
- 2018-05-10 CN CN201820694857.1U patent/CN208110205U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024041344A1 (en) * | 2022-08-23 | 2024-02-29 | 华为技术有限公司 | Display panel and display apparatus |
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Address after: 215301, 1, Longteng Road, Kunshan, Jiangsu, Suzhou Patentee after: InfoVision Optoelectronics(Kunshan)Co.,Ltd. Address before: 215301, 1, Longteng Road, Kunshan, Jiangsu, Suzhou Patentee before: INFOVISION OPTOELECTRONICS (KUNSHAN) Co.,Ltd. |