CN110221461A - Display device and control circuit board - Google Patents
Display device and control circuit board Download PDFInfo
- Publication number
- CN110221461A CN110221461A CN201910461565.2A CN201910461565A CN110221461A CN 110221461 A CN110221461 A CN 110221461A CN 201910461565 A CN201910461565 A CN 201910461565A CN 110221461 A CN110221461 A CN 110221461A
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- CN
- China
- Prior art keywords
- circuit board
- control circuit
- source drive
- power supply
- array substrate
- 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
- G02F1/13306—Circuit arrangements or driving methods for the control of single liquid crystal cells
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
- G09G3/36—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using liquid crystals
Abstract
The invention discloses a kind of display devices, including array substrate, printed circuit board, control circuit board and multiple source drive units, the digital power signal output pin of power supply chip and the transmission circuit of power supply chip are connected between flexible flat cable, printed circuit board, source drive unit and array substrate.The invention also discloses another display devices and a kind of control circuit board.The transmission circuit between digital power signal output pin and enabled pin in the control circuit board of display device forms current loop by being distributed in the input-output section of flexible flat cable, printed circuit board, source drive unit and array substrate, when the current loop is working properly, high-voltage signal in control circuit board can be just input in array substrate, array substrate burnout problems caused by efficiently avoiding because of the connection between flexible flat cable, printed circuit board, source drive unit and array substrate extremely generation short circuit.
Description
Technical field
The present invention relates to liquid crystal technology field more particularly to two kinds of display devices and control circuit board.
Background technique
With the development of field of liquid crystal display, liquid crystal display is obtained in fields such as TV, mobile communication, medical treatment
It is widely applied.
During the production and assembly of liquid crystal display, array substrate passes through source drive cell module and printing electricity
The electrical connection of road plate, printed circuit board is connect by flexible flat cable with the control circuit board, different in two connection procedures
It often all easilys lead to array substrate short circuit to burn, it is therefore desirable to a kind of to prevent because of the abnormal liquid for causing array substrate to be burnt of connection
Crystal display.
Summary of the invention
The main purpose of the present invention is to provide a kind of display device, array substrate and control circuit boards, it is intended to solve
Connecting exception during the production and assembly of liquid crystal display between array substrate, printed circuit board and control circuit board leads to array
The technical issues of substrate short circuit is burnt, to reduce the risk that array substrate short circuit is burnt.
To achieve the above object, the present invention provides a kind of display device, and the display device includes:
Array substrate, printed circuit board, control circuit board and connect the array substrate and the printed circuit board
Multiple source drive units, the control circuit board are electrically connected by flexible flat cable with the printed circuit board, the control
Circuit board processed includes power supply chip, and digital power signal output pin and the enabled of the power supply chip of the power supply chip are drawn
Transmission circuit is communicated between foot, the transmission circuit is connected to the flexible flat cable, the printed circuit board, the source
Between pole driving unit and the array substrate.
Optionally, the transmission circuit includes the first span line for being set to the flexible flat cable, printing electricity
The 4th transmission in the second span line on the plate of road, the third span line on the source drive unit and the array substrate
Section, first span line, the second span line, third span line and the 4th span line include input section and deferent segment
Optionally, at least two third span lines are provided on the source drive unit.
Optionally, the two sides of the source drive unit along its length are provided with two rows of pins, described two thirds
Span line is respectively arranged at the pin at edge in two rows of pins.
Optionally, the deferent segment of adjacent source driving unit and input section connection.
Optionally, the transmission circuit includes the multiple span lines being set in the control circuit board；
One end of each span line and each enabled pin of the power supply chip connect one to one, the other end with it is described
Flexible flat cable connection.
In addition, to achieve the above object, the present invention also provides a kind of display device, the display device includes array base
Plate, printed circuit board, control circuit board and the multiple source drive lists for connecting the array substrate and the printed circuit board
First, the described control circuit board is connected by flexible flat cable with the printed circuit board, and the control circuit board includes power supply
Chip is communicated with transmission between the digital power signal output pin of the power supply chip and the enabled pin of the power supply chip
Circuit, the transmission circuit are connected to the flexible flat cable, the printed circuit board, between the source drive unit.
In addition, to achieve the above object, the present invention also provides a kind of control circuit board, the control circuit board includes power supply
Chip, the control circuit board include power supply signal output pin and input pin；The digital power signal of the power supply chip
Output pin is electrically connected with the power supply signal output pin of the control circuit board；The enable signal input of the power supply chip is drawn
Foot is electrically connected with the input pin of the control circuit board.
Two kinds of display devices provided by the invention, a kind of control circuit board, the number in the control circuit board of display device
Transmission circuit between power supply signal output pin and enabled pin is by being distributed in flexible flat cable, printed circuit board, source
Pole driving unit and the input-output section of array substrate form current loop, when the current loop is working properly, control
High-voltage signal on circuit board can be just input in array substrate, efficiently avoid because flexible flat cable, printed circuit board,
Array substrate burnout problems caused by short circuit occur extremely for the connection between source drive unit and array substrate.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of display device in one embodiment of the application；
Fig. 2 be one embodiment of the application in improve before display device in power supply chip structural schematic diagram；
Fig. 3 is the partial enlargement diagram of display device in embodiment shown in FIG. 1；
Fig. 4 is the structural schematic diagram of display device in another embodiment of the application；
Fig. 5 is the structural schematic diagram of display panel in another embodiment of the application；
Fig. 6 is the structural schematic diagram of display device in another embodiment of the application.
Drawing reference numeral explanation:
Specific embodiment
Below in conjunction with the attached drawing in the embodiment of the present application, technical solutions in the embodiments of the present application carries out clear, complete
Site preparation description, it is clear that described embodiment is only a part of the embodiment of the application, instead of all the embodiments.Base
Embodiment in the application, it is obtained by those of ordinary skill in the art without making creative efforts it is all its
His embodiment, shall fall in the protection scope of this application.
It is to be appreciated that the directional instruction (such as up, down, left, right, before and after ...) of institute is only used in the embodiment of the present application
In explaining in relative positional relationship, the motion conditions etc. under a certain particular pose (as shown in the picture) between each component, if should
When particular pose changes, then directionality instruction also correspondingly changes correspondingly.
In addition, the description for being related to " first ", " second " etc. in this application is used for description purposes only, and should not be understood as referring to
Show or imply its relative importance or implicitly indicates the quantity of indicated technical characteristic." first ", " are defined as a result,
Two " feature can explicitly or implicitly include at least one of the features.In addition, the technical solution between each embodiment can
It to be combined with each other, but must be based on can be realized by those of ordinary skill in the art, when the combination of technical solution occurs
Conflicting or cannot achieve when, will be understood that the combination of this technical solution is not present, also not this application claims protection model
Within enclosing.
Referring to Fig.1, Fig. 1 is a kind of 1 structural schematic diagram of display device provided by the present application, wherein the display device 1 is wrapped
It includes:
Array substrate 10, for what is formed by multiple pixel units, a plurality of grid line, a plurality of source electrode line and multiple active switches
Pixel array.
Source drive unit 20 provides display data and source drive signal to pixel unit.
The control signal received is passed to source drive unit by printed circuit board 30.
Flexible flat cable 40, connection printed circuit board 30 and control circuit board 50, the control that control circuit board 50 is generated
Signal processed is transferred to printed circuit board 30.
Control circuit board 50, the control signal that the power supply chip 501 in control circuit board exports can be classified as high-voltage signal
And low-voltage signal, wherein the high-voltage signal output pin high-voltage signal of power supply chip 501 includes VGH (gate turn-on voltage),
The signals such as VGL (gate off voltage), VAAA (analog power supply signal), HVAA (half pressure analog power supply signal), low-voltage signal packet
Include DVDD (digital power signal) (3.3V), differential data signals, earth signal etc..
Transmission electricity is communicated between the digital power signal output pin 5011 and enabled pin 5012 of power supply chip 501
Road, the transmission circuit be connected to flexible flat cable 40, printed circuit board 30, source drive unit 20 and array substrate 10 it
Between.
It is the risk for how reducing array substrate and being burned out to better illustrate display device provided by the present application, first says
It is bright before the application proposes to improve, array substrate during the production and assembly of liquid crystal display, printed circuit board and control electricity
Connection between the plate of road is that array substrate short circuit how to be easy to cause to burn.
As shown in Figure 2 before the application proposes to improve, the power supply chip of control circuit board usually integrated it is interior
Portion's framework first generates the low-voltage signal DVDD of 3.3v when there is 12V voltage input, then DVDD3.3V is transferred to the enabled letter of high pressure
Number, the high-voltage signals such as VAA, VGH, VGL can be just generated after enable signal pin receives enable signal.
Control circuit board by between flexible flat cable, printed circuit board and source drive unit convey high-voltage signal
Onto array substrate.It is all removable plug between flexible flat cable and control circuit board, printed circuit board.Due to flexible flat
The interface pin of ordinary telegram road is more, arrange it is fine and closely woven, be easy to when with control circuit board or circuit board plug-and-socket because
Interface pin is misaligned and causes grafting abnormal.Pass through different side between source drive module and printed circuit board, array substrate
Property conduction glue connection.Similarly, the interface pin number at junction both ends it is more and arrange it is fine and closely woven, also be easy because interface draw
Foot fails to be aligned one by one and cause connection abnormal.
Above-mentioned grafting it is abnormal or connection is abnormal occur when, due at this time between control circuit board and array substrate still
So there are transmission channel, the high-voltage signal of control circuit output is transported in array substrate still along transmission channel, will lead to
Array substrate is short-circuit and burns.
Array substrate short circuit is caused to be burnt in order to solve the problems, such as that grafting is abnormal or connection is abnormal, as shown in Figure 1, in this Shen
In the display device that please be propose, connect between the digital power signal output pin 5011 and enabled pin 5012 of power supply chip 501
It is connected with transmission circuit, which is connected to flexible flat cable 40, printed circuit board 30, source drive unit 20 and battle array
Between column substrate 10.
The digital power signal exported from pin 5011 along the transmission channel, first successively by flexible flat cable 40,
Printed circuit board 30, source drive unit 20 are input in array substrate 10, then successively by source drive unit 20, printing electricity
Road plate 30, flexible flat cable 40 are input on enabled pin 5012.When flexible flat cable 40 and control circuit board 50, printing
Occur occurring between grafting exception or source drive module 20 and printed circuit board 30, array substrate 10 between circuit board 30
Connection is abnormal, is likely to that the transmission channel is caused to interrupt, digital power signal can not be input to enabled along the transmission channel
On pin 5012, high-voltage signal can not be exported, to avoid because when abnormal grafting or connection exception occurs that high-voltage signal is defeated
The problem of being sent in array substrate and array substrate short circuit caused to be burnt.
Further, as shown in Figure 1, the transmission between digital power signal output pin 5011 and enabled pin 5012 is electric
Road includes the first span line 401 for being set to flexible flat cable 40, the second span line 301 on printed circuit board 30, source electrode
The 4th span line 101 on third span line 201 and array substrate 10 on driving unit 20, the first span line, second pass
Defeated section, third span line and the 4th span line include input section and deferent segment.
It should be noted that on the first span line of flexible flat cable, input section include operating current direction be from
Control circuit board is input to the span line on printed circuit board by flexible flat cable, and deferent segment includes that operating current direction is
From printed circuit board by the span line in flexible flat circuit output to control circuit board；Second in printed circuit board passes
On defeated section, input section includes that operating current direction is to be input to source drive unit from flexible flat cable by printed circuit board
Span line, deferent segment include operating current direction be from source drive unit by printed circuit board be output to flexible flat electricity
The span line of cable；On the third span line of source drive unit, input section includes that operating current direction is from printed circuit board
Be input to the span line of array substrate by source drive unit, deferent segment include operating current direction from array substrate by source
Pole driving unit is output to the span line of printed circuit board；On the 4th span line in array substrate, input section includes work
Current direction is the span line that array substrate is input to from source drive unit, and deferent segment includes that operating current direction is from array
Substrate is output to the span line of source drive unit.
Transmission circuit between digital power signal output pin 5011 and enabled pin 5012 is flexible flat by being distributed in
Flat cable, printed circuit board, source drive unit and array substrate input-output section form current loop, in the electric current
When loop works are normal, the high-voltage signal in control circuit board can be just input in array substrate, be efficiently avoided because of flexibility
Battle array caused by short circuit occurs extremely for the connection between flat cable, printed circuit board, source drive unit and array substrate
Column substrate burnout problems.
As shown in Figure 1, in one embodiment, at least two third span lines 201 are provided on source drive unit 20.By
In each third span line 201 including input section and deferent segment, and each input section or deferent segment both ends are all in source electrode
The junction of driving unit 20 and printed circuit board 30 and array substrate 10, therefore the increase of input section and deferent segment number improves
Find the abnormal probability of the connection of these junctions, further reduced because connection is abnormal short circuit occurs due to lead to array substrate
The risk burnt.
Optionally, the two sides of source drive unit 20 along its length are provided with two rows of pins, two third span lines
It is respectively arranged at the pin at edge in two rows of pins.
Source drive unit 20 is connected one to one by row pin therein with the interface pin in array substrate 10,
It is also connected one to one by other row pin and the interface pin on printed circuit board 30.When edge draws in two rows of pins
When foot and corresponding interface pin have all been correspondingly connected with, two third span lines 201 could be correctly connected to, and work as these sides
When the pin of edge correctly connects, show that the pin of the centre between these edge pins is also correctly to connect one by one.
Therefore when two third span lines 201 of source drive unit 20 are respectively arranged at the pin at edge in two rows of pins, if
When connection exception occurs for any one pin between edge pin and edge pin, the output of digital power signal can be allowed to be drawn
Transmission circuit between foot and enabled pin is in the state of open circuit, to more effectively avoid due to connection abnormal generation short circuit
The problem of causing array substrate to be burnt.
Further, the partial enlarged view of display device as shown in Figure 3, the upper side edge of source drive unit 20 and downside
There is row's pin on side respectively, and the third span line 201 in left side includes the of upper side edge the first pin from left to right and lower side from left to right
Span line, upper side edge between one pin second pin and the lower side span line between second pin from left to right from left to right, right side
Third span line 201 includes the span line between the first pin of the first pin and lower side from right to left of upper side edge from right to left, upside
Side second pin and the lower side span line between second pin from right to left from right to left.
Under above-mentioned transmission line laying mode, set respectively when by two third span lines 201 of source drive unit 20
When being placed in the pin at edge outermost in two rows of pins, if any one pin hair in two rows of pins of source drive unit 20
When raw connection exception, the transmission circuit between digital power signal output pin 5011 and enabled pin 5012 can be allowed to be in
The state of open circuit, the high-voltage signal that control circuit board 50 exports can not be input in array substrate 10, to farthest keep away
Exempt from the problem of causing array substrate to be burnt due to the abnormal generation of connection is short-circuit.
Optionally, the deferent segment of adjacent source driving unit 20 and input section connection.Such as shown in Figure 1, from the right side to
A left side is followed successively by the first source drive unit, the second source drive unit, third source drive unit and the 4th source drive unit.
The deferent segment on the left side is connected to the input section on the right on the second adjacent source drive unit on first source drive unit, and second
The deferent segment on the source drive unit left side is connected to the input section on the right of adjacent third source drive unit.By adjacent source electrode
The deferent segment of driving unit is connected to input section, the line interconnected can be laid in printed circuit board 30 along its length
Side edge reduces influence of the newly-increased line interconnected to the original wiring of printed circuit board 30, simplifies printed circuit board 30
Wires design.
Optionally, in one embodiment, as shown in figure 4, display device successively includes the first source drive list from right to left
Member, the second source drive unit, third source drive unit and the 4th source drive unit.It is connected to printed circuit board 30 and array
The third span line of substrate 10 is set on the source drive unit at interval, i.e. the deferent segment and third of the first source drive unit
The input section of source drive unit is connected to, and the deferent segment of third source drive unit is connected to flexible flat cable, the second source electrode
Input section and deferent segment are not provided on driving unit and the 4th source drive unit.
It similarly, can be according to default rule therefrom when display device includes the more source drive units of number
It selects part source drive unit and lays input section and deferent segment, wherein default rule can be according to uniform spaced pick
Source drive unit, can also be according to the importance or wiring difficulty or ease of the corresponding wiring area in source drive unit position
Degree is selected.When in a display device comprising many source drive units of number, according to default rule selected section
Source drive unit carry out input section and deferent segment laying, rather than each source drive unit carry out input section with it is defeated
The laying of section out, can be effectively ensured avoid the problem that because connection is abnormal short circuit occurs due to cause array substrate to be burnt same
When, simplify the wires design on the printed circuit board and array substrate connecting with source drive unit.
Optionally, in one embodiment, as shown in figure 5, digital power signal output pin 5011 and enabled pin
Transmission circuit between (5012,5014,5015) includes the multiple span lines being set in control circuit board 50；
Each enabled pin (5012,5014,5015) of one end of each span line and the power supply chip corresponds
Connection, the other end are connected to the flexible flat cable 40.Since enabled pin corresponds the defeated of different high-voltage signals
Out, it is enabled by the digital power signal that will be passed back from flexible flat cable according in a plurality of multi-branch transport section and power supply chip
Pin connects one to one, and realizes when power supply chip has multiple enabled pins and corresponds to multiple high-voltage signals, can also be to avoid
The problem of causing array substrate to be burnt due to connection is abnormal, and short circuit occurs.
As shown in fig. 6, the present invention also proposes a kind of display device 2, which includes:
Array substrate 10, for what is formed by multiple pixel units, a plurality of grid line, a plurality of source electrode line and multiple active switches
Pixel array.
Source drive unit 20 provides display data and source drive signal to pixel unit.
The control signal received is passed to source drive unit by printed circuit board 30.
Flexible flat cable 40, connection printed circuit board 30 and control circuit board 50, the control that control circuit board 50 is generated
Signal processed is transferred to printed circuit board 30.
Control circuit board 50, the control signal that the power supply chip 501 in control circuit board exports can be classified as high-voltage signal
And low-voltage signal, wherein high-voltage signal includes VGH (gate turn-on voltage), VGL (gate off voltage), VAAA (analog power
Signal), signals, the low-voltage signal such as HVAA (half pressure analog power supply signal) include DVDD (digital power signal) (3.3V), difference
Data-signal, earth signal etc..
Transmission electricity is communicated between the digital power signal output pin 5011 and enabled pin 5012 of power supply chip 501
Road, the transmission circuit are connected to flexible flat cable 40, printed circuit board 30, between source drive unit 20.
The digital power signal exported from pin 5011 along the transmission channel, first successively by flexible flat cable 40,
Printed circuit board 30 is input on source drive unit 20, then is successively inputted by printed circuit board 30, flexible flat cable 40
Onto enabled pin 5012.It is abnormal when occurring grafting between flexible flat cable 40 and control circuit board 50, printed circuit board 30,
Or occur connection exception between source drive module 20 and printed circuit board 30, it is likely to that the transmission channel is caused to interrupt,
Digital power signal can not be input on enabled pin 5012 along the transmission channel, can not export high-voltage signal, to avoid
Because causing array substrate short circuit to be burnt due to occurring and high-voltage signal is transported in array substrate when grafting is abnormal or connection is abnormal
The problem of.
Optionally, the transmission circuit between digital power signal output pin and enabled pin includes being set to flexible flat
The first span line, the second span line on printed circuit board, the third span line on source drive unit of cable, the first transmission
Section, the second span line and third span line include input section and deferent segment.
Optionally, at least two third span lines are provided on source drive unit.Since each third span line wraps
Input section and deferent segment are included, and each input section or deferent segment both ends are all in source drive unit and printed circuit board and battle array
The junction of column substrate, therefore the increase of input section and deferent segment number improves the general of the connection exception for finding these junctions
Rate further reduced the risk because the abnormal generation short circuit due to of connection causes array substrate to be burnt.
In addition, the control circuit board includes power supply chip the present invention also provides a kind of control circuit board, the control electricity
Road plate includes power supply signal output pin and input pin, the digital power signal output pin and the control of the power supply chip
The power supply signal output pin of circuit board processed is electrically connected, the enable signal input pin of the power supply chip and the control circuit
The input pin of plate is electrically connected.
The foregoing is merely the optional embodiment of the application, be not intended to limit the scope of the patents of the application, it is all
Under the design of the application, using equivalent transformation made by present specification and accompanying drawing content, or directly/it is used in other indirectly
Relevant technical field is included in the scope of patent protection of the application.
Claims (10)
1. a kind of display device, which is characterized in that the display device include array substrate, printed circuit board, control circuit board,
And multiple source drive units of the connection array substrate and the printed circuit board, the control circuit board pass through flexibility
Flat cable is electrically connected with the printed circuit board, and the control circuit board includes power supply chip, the number of the power supply chip
Transmission circuit is communicated between power supply signal output pin and the enabled pin of the power supply chip, the transmission circuit is connected to
Between the flexible flat cable, the printed circuit board, the source drive unit and the array substrate.
2. display device as described in claim 1, which is characterized in that the transmission circuit includes being set to the flexible flat
The first span line, the second span line on the printed circuit board, the third span line on the source drive unit of cable
And the 4th span line in the array substrate, first span line, the second span line, third span line and the 4th pass
Defeated section includes input section and deferent segment.
3. the display device described in claim 1, which is characterized in that be provided at least two on the source drive unit
Third span line.
4. display device as claimed in claim 3, which is characterized in that the two sides of the source drive unit along its length
Two rows of pins are provided with, described two third span lines are respectively arranged at the pin at edge in two rows of pins.
5. such as the described in any item display devices of claim 2 to 4, it is characterised in that: the deferent segment of adjacent source driving unit
And input section connection.
6. such as a kind of described in any item display devices of Claims 1-4, it is characterised in that:
The transmission circuit includes the multiple span lines being set in the control circuit board；
One end of each span line and each enabled pin of the power supply chip connect one to one, the other end and the flexibility
Flat cable connection.
7. a kind of display device, which is characterized in that the display device include array substrate, printed circuit board, control circuit board,
And the connection array substrate and multiple source drive units of the printed circuit board, the control circuit board pass through flexibility
Flat cable is connected with the printed circuit board, and the control circuit board includes power supply chip, the number electricity of the power supply chip
Transmission circuit is communicated between source signal output pin and the enabled pin of the power supply chip, the transmission circuit is connected to institute
State flexible flat cable, the printed circuit board, between the source drive unit.
8. display device as claimed in claim 7, which is characterized in that the transmission circuit includes being set to the flexible flat
The first span line, the second span line on the printed circuit board, the third span line on the source drive unit of cable,
First span line, the second span line and third span line include input section and deferent segment.
9. display device as claimed in claim 7, which is characterized in that be provided at least two on the source drive unit
Three span lines.
10. a kind of control circuit board, the control circuit board includes power supply chip, it is characterised in that:
The control circuit board includes power supply signal output pin and input pin；
The digital power signal output pin of the power supply chip is electrically connected with the power supply signal output pin of the control circuit board
It connects；
The enable signal input pin of the power supply chip is electrically connected with the input pin of the control circuit board.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910461565.2A CN110221461B (en) | 2019-05-29 | 2019-05-29 | Display device and control circuit board |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910461565.2A CN110221461B (en) | 2019-05-29 | 2019-05-29 | Display device and control circuit board |
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| CN110221461A true CN110221461A (en) | 2019-09-10 |
| CN110221461B CN110221461B (en) | 2021-07-06 |
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| CN201910461565.2A Active CN110221461B (en) | 2019-05-29 | 2019-05-29 | Display device and control circuit board |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110930960A (en) * | 2019-12-09 | 2020-03-27 | 大峡谷照明系统（苏州）股份有限公司 | Display control device |
| CN112738981A (en) * | 2020-12-21 | 2021-04-30 | 苏州精濑光电有限公司 | FPC board and test system |
| WO2024011686A1 (en) * | 2022-07-12 | 2024-01-18 | 武汉华星光电技术有限公司 | Display panel and electronic terminal |
| WO2024040854A1 (en) * | 2022-08-24 | 2024-02-29 | 长鑫存储技术有限公司 | Circuit layout structure and chip |
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