CN105609045B - Driving chip-level system and method for split screen driving - Google Patents
Driving chip-level system and method for split screen driving Download PDFInfo
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- CN105609045B CN105609045B CN201511008063.2A CN201511008063A CN105609045B CN 105609045 B CN105609045 B CN 105609045B CN 201511008063 A CN201511008063 A CN 201511008063A CN 105609045 B CN105609045 B CN 105609045B
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- 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
- G09G3/22—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 using controlled light sources
- G09G3/30—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 using controlled light sources using electroluminescent panels
- G09G3/32—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 using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED]
- G09G3/3208—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 using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED]
- G09G3/3216—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 using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED] using a passive matrix
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- Computer Hardware Design (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
Abstract
The invention provides a driving chip-level system and a driving chip-level method for split screen driving. The system comprises: a display panel divided into a first region and a second region based on a scanning end; the host driving chip is used for driving the scanning end and the public end of the first area; and the slave driving chip is used for driving the scanning end and the common end of the second area.
Description
Technical field
The present invention relates to display screen drive areas.
Background technique
Currently, small-medium size display applications demand is increasingly extensive, STN (Super Twisted Nematic, supertwist
Nematic)-LCD display occupies mainstream, but its screen response time is slow, picture brightness is low, display effect is undesirable.PMOLED
(Passive Matrix OLED, passive type organic electric exciting light-emitting diode) is since its manufacturing process is simple, at low cost, display
High-efficient equal superiority developments are rapid；But since PMOLED is limited by material itself and driving method, single screen be cannot achieve greatly
Size, high-resolution display require, and need to splice by multi-screen body and realize；Meanwhile at present in the application of the manystage cascade connection of common STN-LCD
Single host driven, the mode of more slaves interconnection are mostly used, as shown in Figure 1, the common end (com) of display screen is unified by host
Driving, the scanning end (segment) of display screen are composed of host and several slaves, which drives host com
Capability Requirement is higher, and big resolution ratio mould group needs multiple slaves, and PCB layout complexity increases, and screen body display effect is limited；With screen
The PMOLED Driver IC cascade correlative study that body tiled display matches is less.
Summary of the invention
Conventional method in above description there are aiming at the problem that, in conjunction with market application demand, the present invention provides a kind of
The PMOLED driver IC outlet method for holding laterally cascade splicing is realized master and slave function by the different configurations of single IC, is adopted
It can reduce the complexity for shielding signal connection between body and driver IC during lateral application of the manystage cascade connection with this kind of outlet method
Degree, host and slave processors respectively drive corresponding screen can body reduce the difference of different screen body display effects, enhancing display effect.
The present invention provides a kind of driving chip cascade systems of split screen driving.The system comprises:
Display screen panel, the display pannel are based on scanning end and are divided into first area and second area；
Host driven chip, the host driven chip are used to drive scanning end and the common end of the first area；
Slave driving chip, the slave driving chip are used to drive scanning end and the common end of the second area.
In one embodiment, the first area is identical with the second area area.
In one embodiment, the host driven chip includes:
Only three signal of communication lines；
The drive module of scanning end is driven, the drive module of the driving scanning end drives the whole of the display screen panel
Half in scanning end；
Drive the drive module of common end.
In one embodiment, the slave driving chip includes:
Three signal of communication lines；
The drive module of scanning end is driven, the drive module of the driving scanning end drives the whole of the display screen panel
Half in scanning end；
Drive the drive module of common end.
In one embodiment, three signal of communication lines include:
Clock signal of system line, to guarantee the clock source phase of the host driven chip and the slave driving chip
Together；
Serial data signal line, for needing data to be shown to lead to the host driven chip in the case where system clock controls
It crosses serial shift mode and sends the slave driving chip to；
Frame synchronizing signal line carries out timing school to the host driven chip and the slave driving chip for every frame
Just.
In one embodiment, the display screen panel is passive type organic electric exciting light-emitting diode (PMOLED) display screen
Panel.
The present invention also provides a kind of Cascading Methods of display driver chip, which comprises
Display screen panel is based on scanning end and is divided into first area and second area；
Host driven chip is provided, scanning end and the common end of the first area are driven；
Slave driving chip is provided, scanning end and the common end of the second area are driven.
In one embodiment, the first area is identical with the second area area.
In one embodiment, the host driven chip includes:
Three signal of communication lines；
The drive module of scanning end is driven, the drive module of the driving scanning end drives the whole of the display screen panel
Half in scanning end；
Drive the drive module of common end.
In one embodiment, the slave driving chip includes:
Only three signal of communication lines；
The drive module of scanning end is driven, the drive module of the driving scanning end drives the whole of the display screen panel
Half in scanning end；
Drive the drive module of common end.
In one embodiment, three signal of communication lines include:
Clock signal of system line, to guarantee the clock source phase of the host driven chip and the slave driving chip
Together；
Serial data signal line, for needing data to be shown to lead to the host driven chip in the case where system clock controls
It crosses serial shift mode and sends the slave driving chip to；
Frame synchronizing signal line carries out timing school to the host driven chip and the slave driving chip for every frame
Just.
In one embodiment, the display screen panel is passive type organic electric exciting light-emitting diode (PMOLED) display screen
Panel.
Detailed description of the invention
The above summary of the invention of the invention and following specific embodiment can obtain more preferably when reading in conjunction with the drawings
Understanding.It should be noted that attached drawing is only used as the example of claimed invention.In the accompanying drawings, identical appended drawing reference
Represent same or similar element.
Fig. 1 shows the schematic diagram of STN-LCD cascade display in the prior art；
Fig. 2 shows the PMOLED Driver IC of an embodiment according to the present invention to cascade schematic diagram；
Fig. 3 shows the slave data interaction of an embodiment according to the present invention.
Specific embodiment
Describe detailed features and advantage of the invention in detail in a specific embodiment below, content is enough to make any
Skilled in the art realises that technology contents of the invention and implementing accordingly, and according to specification disclosed by this specification, power
Benefit requires and attached drawing, skilled person readily understands that the relevant purpose of the present invention and advantage.
Fig. 1 shows the schematic diagram of STN-LCD cascade display in the prior art.Traditional STN-LCD only by host driven, from
Machine mutual contact mode driving signal needs longer PCB trace, it is contemplated that trace signal loss, it is actual to drive energy from generator terminal screen body
Power is weaker than host, partially dark compared with host from generator terminal display effect, and whole display effect is limited.Moreover, using in the prior art
Cascade system, host and slave are required to more signal wire, for example, power signal line, slave oneself does not generate power supply signal
Line, and need to obtain power supply signal from host.This also increases design complexities from another point of view.
Present invention employs subregions independently to drive, reduces the method for slave communication complexity to promote whole display effect
Fruit.
Fig. 2 shows the PMOLED Driver IC of an embodiment according to the present invention to cascade schematic diagram.As shown in Fig. 2, being
The entire display area PMOLED is divided into the regions of left and right two in figure and realizes that subregion independently drives by lateral application of the manystage cascade connection example,
Left side display area is driven by Driver IC master, driving of the right display area by driver IC slave；master
There is no any difference with slave IC function, only host and slave processors function need to can be realized by configuring accordingly；
The instruction operation source of host and slave processors is identical, and respectively chip interior is electric by host and slave processors by segment, com and power supply etc.
Road driving, while responding host computer instruction and completing operation, since driving capability difference is very between the different chips of similar chip
It is small, it can guarantee the equilibrium for entirely shielding body display effect, improve display effect.
In addition, only 3 radical word line set signals complete data communication to host and slave processors of the invention.This three signal wires are as follows: clk_
Sys (clock signal of system line), da_sft (serial data signal line), frm_sync (frame synchronizing signal line).
The signal of communication of host and slave processors data is reduced to 3, respectively clk_sys, da_sft, frm_sync by this method:
Clk_sys clock signal of system line guarantees that host and slave processors clock source is identical；Da_sft serial data signal is under system clock control
It needs data to be shown to sequence sequence slave and slave is sent to by serial shift mode；Frm_sync frame synchronizing signal is for every
Frame carries out timing corrections to host and slave processors, and to achieve the purpose that master and slave simultaneous display, the presence of the signal resists whole system
Interference performance has a certain upgrade, and when entanglement occurs for slave logic, host can be realized to the timing of slave by the signal
Correction；The reduction of slave correlation signal line is significant for reducing later period mould group PCB layout complexity effect promoting, while to whole
The anti-interference ability of a system also has certain promotion.
Fig. 3 shows the slave data interaction of an embodiment according to the present invention.As shown in figure 3, display content is by host
Unified distribution, after host computer will show that content sends host to, host shows that demand arranges data sequence according to slave in advance
It is good, it will show that data transmission is used to show to from generator terminal by serial shift mode.
Here the term and form of presentation used is only intended to describe, and the present invention should not be limited to these terms and table
It states.It is not meant to exclude the equivalent features of any signal and description (or in which part) using these terms and statement, should recognize
Knowing various modifications that may be present should also be included in scope of the claims.Other modifications, variations and alternatives are also likely to be present.
Correspondingly, claim should be regarded as covering all these equivalents.
Equally, it should be pointed out that although the present invention is described with reference to current specific embodiment, this technology neck
Those of ordinary skill in domain it should be appreciated that more than embodiment be intended merely to illustrate the present invention, in no disengaging present invention
Various equivalent change or replacement can be also made in the case where spirit, therefore, as long as right in spirit of the invention
The variation, modification of above-described embodiment will all be fallen in the range of following claims.
Claims (6)
1. a kind of driving chip cascade system of split screen driving, which is characterized in that the system comprises:
Display screen panel, the display screen panel are based on scanning end and are divided into first area and second area；
Host driven chip, the host driven chip are used to drive scanning end and the common end of the first area；
Slave driving chip, the slave driving chip are used to drive scanning end and the common end of the second area；
The host driven chip includes:
Only three signal of communication lines；
The drive module of scanning end is driven, the drive module of the driving scanning end drives whole scannings of the display screen panel
Half in end；
Drive the drive module of common end；
The slave driving chip includes:
Three signal of communication lines；
The drive module of scanning end is driven, the drive module of the driving scanning end drives whole scannings of the display screen panel
Half in end；
Drive the drive module of common end；
Wherein, three signal of communication lines include:
Clock signal of system line, to guarantee that the host driven chip is identical with the clock source of the slave driving chip；
Serial data signal line, for needing data to be shown to pass through string the host driven chip in the case where system clock controls
Row displacement mode sends the slave driving chip to；
Frame synchronizing signal line carries out timing corrections to the host driven chip and the slave driving chip for every frame.
2. driving chip cascade system as described in claim 1, which is characterized in that the first area and the second area
Area is identical.
3. the system as claimed in claim 1, which is characterized in that the display screen panel is two pole of passive type organic electric-excitation luminescent
Manage (PMOLED) display screen panel.
4. a kind of Cascading Methods of display driver chip, which is characterized in that the described method includes:
Display screen panel is based on scanning end and is divided into first area and second area；
Host driven chip is provided, scanning end and the common end of the first area are driven；
Slave driving chip is provided, scanning end and the common end of the second area are driven；
The host driven chip includes:
Three signal of communication lines；
Drive the drive module of scanning end；
Drive the drive module of common end；
The slave driving chip includes:
Only three signal of communication lines；
Drive the drive module of scanning end；
Drive the drive module of common end；
Wherein, three signal of communication lines include:
Clock signal of system line, to guarantee that the host driven chip is identical with the clock source of the slave driving chip；
Serial data signal line, for needing data to be shown to pass through string the host driven chip in the case where system clock controls
Row displacement mode sends the slave driving chip to；
Frame synchronizing signal line carries out timing corrections to the host driven chip and the slave driving chip for every frame.
5. method as claimed in claim 4, which is characterized in that the first area is identical with the second area area.
6. method as claimed in claim 4, which is characterized in that the display screen panel is two pole of passive type organic electric-excitation luminescent
Manage (PMOLED) display screen panel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511008063.2A CN105609045B (en) | 2015-12-29 | 2015-12-29 | Driving chip-level system and method for split screen driving |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511008063.2A CN105609045B (en) | 2015-12-29 | 2015-12-29 | Driving chip-level system and method for split screen driving |
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| Publication Number | Publication Date |
|---|---|
| CN105609045A CN105609045A (en) | 2016-05-25 |
| CN105609045B true CN105609045B (en) | 2019-01-08 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109509446A (en) * | 2018-12-19 | 2019-03-22 | 惠科股份有限公司 | Display module and display device |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107393460B (en) | 2017-08-08 | 2020-03-27 | 惠科股份有限公司 | Driving method and driving device of display device |
| CN109859694B (en) * | 2019-03-19 | 2021-04-20 | 京东方科技集团股份有限公司 | Display panel, driving control method and driving control circuit thereof, and display device |
| CN114489364A (en) | 2020-11-11 | 2022-05-13 | 京东方科技集团股份有限公司 | Display device and control method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2632717Y (en) * | 2003-07-09 | 2004-08-11 | 深圳市创欧科技有限公司 | Liquid-crystal displaying devices |
| CN201622821U (en) * | 2010-01-22 | 2010-11-03 | 深圳市奥拓电子股份有限公司 | Display screen control system |
| CN201829172U (en) * | 2010-09-06 | 2011-05-11 | 青岛海信电器股份有限公司 | Signal transmission interface and television set thereof |
| CN202394496U (en) * | 2011-11-15 | 2012-08-22 | 四川虹视显示技术有限公司 | Split-screen-driven large-size passive-matrix organic light emitting diode (PMOLED) |
| TWI490842B (en) * | 2012-10-29 | 2015-07-01 | Dazzo Technology Corp | Display apparatus, driving chip set and operating method thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109509446A (en) * | 2018-12-19 | 2019-03-22 | 惠科股份有限公司 | Display module and display device |
| CN109509446B (en) * | 2018-12-19 | 2021-06-04 | 惠科股份有限公司 | Display module and display device |
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| CN105609045A (en) | 2016-05-25 |
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Effective date of registration: 20161206 Address after: 200335 Shanghai city Changning District Admiralty road 767 Lane 3 Building No. 1 Applicant after: CHIP WEALTH TECHNOLOGY LTD. Address before: 710065 Shaanxi hi tech Zone, Xi'an Jin Road, No. 70 satellite building 2F Applicant before: XI'AN ZHONGYING ELECTRONIC Co.,Ltd. |
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