CN105469755B - Display drive module - Google Patents
Display drive module Download PDFInfo
- Publication number
- CN105469755B CN105469755B CN201510897295.1A CN201510897295A CN105469755B CN 105469755 B CN105469755 B CN 105469755B CN 201510897295 A CN201510897295 A CN 201510897295A CN 105469755 B CN105469755 B CN 105469755B
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- China
- Prior art keywords
- drive module
- display drive
- data source
- output buffer
- source circuit
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- 239000000872 buffer Substances 0.000 claims abstract description 48
- 230000005540 biological transmission Effects 0.000 claims description 11
- 238000003860 storage Methods 0.000 claims description 9
- 239000004065 semiconductor Substances 0.000 claims description 7
- 230000005611 electricity Effects 0.000 claims description 4
- 239000002184 metal Substances 0.000 claims description 2
- 230000003321 amplification Effects 0.000 claims 1
- 238000003199 nucleic acid amplification method Methods 0.000 claims 1
- 150000002927 oxygen compounds Chemical class 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 239000004973 liquid crystal related substance Substances 0.000 description 9
- 229910044991 metal oxide Inorganic materials 0.000 description 5
- 150000004706 metal oxides Chemical class 0.000 description 5
- 230000017525 heat dissipation Effects 0.000 description 4
- 239000010409 thin film Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 239000000758 substrate Substances 0.000 description 3
- 241000150100 Margo Species 0.000 description 2
- 230000003247 decreasing effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000003292 glue Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000001816 cooling Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
-
- 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
- G09G3/3611—Control of matrices with row and column drivers
- G09G3/3685—Details of drivers for data electrodes
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
- Liquid Crystal Display Device Control (AREA)
Abstract
The present invention discloses a kind of display drive module, includes an at least output buffer and a data source circuit chip；The output buffer is arranged at least on a lateral margin of array basal plate, and is electrically connected with the one drive circuit on the array base palte and collectively forms an array circuit layer；The data source circuit chip is adjacent at least side of the array base palte, the output buffer being for electrically connecting on the array base palte, and the data source circuit chip receives a data of control chip transmitting, and produces an analog voltage.The present invention can reduce the manufacture cost of the data source circuit chip, improve the problem of data source circuit chip temperature is excessive by the way that output buffer is integrated on array base palte.
Description
Technical field
The invention relates to a kind of drive module, in particular to a kind of display drive module.
Background technology
TFT-LCD (Thin Film Transistor Liquid Crystal Display) panel, in the course of work
In, it is necessary to digit value is converted into analog voltage by data source circuit chip (source IC), then by analog voltage
Discharge and recharge is carried out to the liquid crystal of the panel by the data circuit on array layer, to realize the normal display of each pixel.
General data source circuit chip has multiple output channels (channel), and each passage is equipped with an output
Buffer, when the panel is in larger load for a long time, the electric current of the output buffer will increase so that described
The temperature of data source circuit chip is raised and can not worked normally.
Since the display picture of the panel changes, the load of the corresponding panel can also change, and make described
The size of current of the output of the output buffer of data source circuit chip changes.Also, the master of the data source circuit chip
It is to come from the output buffer to want heat, and the data source circuit chip is small, causes heat dissipation area insufficient,
Cause heat dissipation effect poor, thus cause the data source circuit chip easily to produce higher temperature.That is, the data
Source circuit chip is influenced be subject to built-in output buffer (output buffer), can easily produce the excessive situation of temperature.
Therefore, it is necessary to the data source circuit chip of the prior art is improved, to solve the number of the prior art
According to source circuit chip cooling area deficiency, it is easier to be subject to influencing for built-in output buffer, and causes temperature is excessive to ask
Topic.
The content of the invention
In view of this, it is an object of the invention to provide a kind of display drive module, by the way that output buffer is integrated
To array base palte, the manufacture cost of the data source circuit chip can be reduced, it is excessive to improve data source circuit chip temperature
The problem of.
Above-mentioned to achieve the purpose that, one embodiment of the invention provides a kind of display drive module, includes at least one output
Buffer and a data source circuit chip；The output buffer is arranged at least on a lateral margin of array basal plate, and with institute
The one drive circuit on array base palte is stated to be electrically connected and collectively form an array circuit layer；The data source circuit chip adjoining
In at least side of the array base palte, the output buffer being for electrically connecting on the array base palte, the data source electricity
Road chip receives a data of control chip transmitting, and produces an analog voltage.
In one embodiment of this invention, the output buffer is an at least metal oxide semiconductor switch.
In one embodiment of this invention, the output buffer is an at least amplifying circuit, and the amplifying circuit respectively has
There are multiple phase inverters that even level concatenates.
In one embodiment of this invention, the data source circuit chip has a receiver, to receive the control
The data of chip emission, and a differential signal of the data is converted into a digital signal.
In one embodiment of this invention, the data source circuit chip also has a shift register, to by described in
The digital signal of receiver output is converted to parallel transmission by serial transmission.
In one embodiment of this invention, the data source circuit chip also has a line storage, to by the shifting
Bit register output is arranged in the digital signal of parallel transmission by a panel display location, and is stored in order.
In one embodiment of this invention, the data source circuit chip also has a lever boosting circuit, to by institute
The operating voltage for stating the digital signal of line storage output is boosted.
In one embodiment of this invention, the data source circuit chip also has a digital converter, to by described in
The digital signal of lever boosting circuit output is converted to the analog voltage, and is sent on the output buffer.
In one embodiment of this invention, a non-display area of the output buffer position in the array circuit layer.
In one embodiment of this invention, the display drive module includes multiple output buffers, sets respectively
Put on two lateral margins of array base palte opposition.
As described above, by the way that the output buffer is integrated on the array base palte, can be compared with the optimization of limits
The array base palte processing procedure, reduces the manufacture cost of the data source circuit chip, effectively lifts the display drive module
Product quality and improve product market price competition power.In addition, it is integrated into the array using by the output buffer
On substrate, the heat that can produce the output buffer is radiated by the larger heat dissipation area of the array base palte, made
The temperature of the data source circuit chip is decreased obviously, and then improves the problem of data source circuit chip temperature is excessive.
Brief description of the drawings
Fig. 1 is a schematic diagram of one preferred embodiment of inventive display drive module.
Fig. 2 is one that the output buffer of one preferred embodiment of inventive display drive module is arranged on array base palte
Side view.
Fig. 3 is a schematic diagram of the output buffer of one preferred embodiment of inventive display drive module.
Fig. 4 is a circuit diagram of the output buffer of one preferred embodiment of inventive display drive module.
Embodiment
The explanation of following embodiment is with reference to additional schema, to illustrate the particular implementation that the present invention can be used to implementation
Example.Furthermore the direction term that is previously mentioned of the present invention, for example, upper and lower, top, bottom, front, rear, left and right, inside and outside, side, surrounding, in
Centre, it is horizontal, laterally, vertically, longitudinally, axial direction, radial direction, the superiors or orlop etc., be only the direction with reference to annexed drawings.Cause
This, the direction term used is to illustrate and understand the present invention, and is not used to the limitation present invention.
It refer to shown in Fig. 1 and 2, be a preferred embodiment of inventive display drive module, wherein the display
Drive module 100 includes an output buffer 2 and a data source circuit chip 3, and the display drive module 100 is applied thin
Film transistor liquid crystal display (Thin Film Transistor Liquid Crystal Display, abbreviation TFT-LCD)
On, digit value is converted into analog voltage, then analog voltage is passed through into data circuit discharge and recharge is carried out to liquid crystal, it is real
The now normal display effect of each pixel, in the present embodiment, to set an output buffer 2 to illustrate, but in other realities
Multiple output buffers 2 can also be provided with by applying in example, and be limited to from the present embodiment.The present invention will be each in being detailed below
Detail structure, assembled relation and its operation principles of the above-mentioned each component of embodiment.
Refer to shown in Fig. 1 and 2, the output buffer 2 is arranged on a lateral margin of array basal plate 101, and with institute
The one drive circuit 102 stated on array base palte 101 is electrically connected and collectively forms an array circuit layer (see Fig. 2).Come in more detail
Say, 2 non-display areas in array circuit layer periphery of output buffer, the non-display area refers to work as the battle array
When 101 and one opposite substrate (not illustrating) of row substrate is assembled into a liquid crystal display panel jointly, position is in the liquid crystal display panel
A frame glue outside region, and region Ze Weiyi viewing area of the position inside the frame glue of the liquid crystal display panel, wherein institute
Drive circuit 102 is stated to ascend the throne in the viewing area of the array circuit layer.It is furthermore described by the design of liquid crystal display panel specification
Display drive module 100 can include multiple output buffers 2, be all arranged in a manner of spaced linear arranges described
On the single lateral margin (such as margo dexter or left border) of array base palte 101；Alternatively, the display drive module 100 can also include
Multiple output buffers 2, are arranged on two sides that the array base palte 101 opposes in a manner of spaced linear arranges respectively
On edge (such as left border and margo dexter).
It is continuous that the data source circuit chip 3 is adjacent to the side of the array base palte 101 with reference to shown in Fig. 1 and 2, to
The output buffer 2 being electrically connected on the array base palte 101.The data source circuit chip 3 receives a control chip 103 and sends out
The data penetrated, and then produce an analog voltage.The data source circuit chip 3 has a receiver 31, a shift LD
Device 32, a line storage 33, a lever boosting circuit 34 and a digital converter 35.
Shown in continuous reference Fig. 1 and 2, the receiver 31 is that the transmitter 104 for receiving the control chip 103 is sent out
The data penetrated, and a differential signal of the data is converted into a digital signal；The shift register 32 is to by described in
The digital signal that receiver 31 exports is converted to parallel transmission by serial transmission；The line storage 33 to by it is described displacement post
The output of storage 32 is arranged in the digital signal of parallel transmission by a panel display location, and is stored in order；It is described
One operating voltage of digital signal of the lever boosting circuit 34 line storage 33 to be exported is boosted；The numerical digit
Converter 35 is converted to the analog voltage to the digital signal for exporting the lever boosting circuit 34, and is sent to institute
State on output buffer 2.
With reference to shown in Fig. 3 and 4, in the present embodiment, the output buffer 2 is multiple metal oxide semiconductor switch
The amplifying circuit (see Fig. 4) that Q1 to Q4 is formed, and the amplifying circuit has multiple phase inverters (see Fig. 3) of even level concatenation,
Wherein described amplifying circuit receives the metal oxide semiconductor switch Q1 by a voltage input end Vin and the metal aoxidizes
Thing semiconductor switch Q4 is metering function, coordinates the metal oxide semiconductor switch Q2 and the metal-oxide semiconductor (MOS)
Q3 composition push-pull circuits are switched, to realize that the voltage of the voltage input end and voltage output end can be consistent.
According to above-mentioned structure, the data are converted to low-voltage by the control chip 103 by the transmitter 104
The differential signal (mini-LVDS) and launched；The receiver 31 receives the differential signal, and is converted to crystalline substance
The digital signal of transistor-transistor logic (TTL) level (TTL), so as to rear module processing；The shift register 32 is to by institute
The digital signal for stating the output of receiver 31 is converted to parallel transmission by serial transmission, and is instructed according to controller and press each data
Correct position is stored in the line storage 33；The lever boosting circuit 34 is to the number that exports the line storage 33
One operating voltage of position signal is boosted, the voltage of digital circuit be promoted to the magnitude of voltage of analog circuit；Again
Digit value is converted into actual simulation by the digital converter 35 (Digital to Analog Convertor, DAC)
Magnitude of voltage；The analog voltage pushes to institute after the output buffer 2 (output buffer) increases current driving capability
In the drive circuit 102 for stating the panel of Thin Film Transistor-LCD so that the panel obtains required voltage and carries out
Picture is shown.
As described above, by the way that the output buffer 2 is integrated on the array base palte 101, can be compared with limits
Optimize 101 processing procedure of array base palte, reduce the manufacture cost of the data source circuit chip 3 and improve the data source circuit
The problem of 3 temperature of chip is excessive, effectively lifts the product quality of the display drive module 100 and improves the market price of product
Lattice competitiveness., can will be described defeated it is noted that be integrated into using by the output buffer 2 on the array base palte 101
Go out the heat of the generation of buffer 2, radiated by the larger heat dissipation area of the array base palte 101, make the data source circuit
The temperature of chip 3 is decreased obviously, thus effectively solves the problems, such as that the data source circuit chip temperature of the prior art is excessive.
The present invention is described by above-mentioned related embodiment, but above-described embodiment is only the example for implementing the present invention.
It must be noted that, it has been disclosed that embodiment be not limiting as the scope of the present invention.On the contrary, it is contained in the spirit of claims
And the modification of scope and impartial setting are included in the scope of the present invention.
Claims (10)
- A kind of 1. display drive module, it is characterised in that：The display drive module includes：An at least output buffer, At least on a lateral margin of array basal plate is arranged on, and is electrically connected and common structure with the one drive circuit on the array base palte Into an array circuit layer；And a data source circuit chip, at least side of the array base palte is adjacent to, is for electrically connecting to institute The output buffer on array base palte is stated, the data source circuit chip receives a data of control chip transmitting, and produces One analog voltage.
- 2. display drive module as claimed in claim 1, it is characterised in that：The output buffer is an at least metal oxygen Compound semiconductor switch.
- 3. display drive module as claimed in claim 1, it is characterised in that：The output buffer is at least one amplification electricity Road, the amplifying circuit respectively have multiple phase inverters of even level concatenation.
- 4. display drive module as claimed in claim 1, it is characterised in that：The data source circuit chip has one to receive Device, to receive the data of the control chip transmitting, and is converted into a digital signal by a differential signal of the data.
- 5. display drive module as claimed in claim 4, it is characterised in that：The data source circuit chip also has one to move Bit register, the digital signal the receiver to be exported are converted to parallel transmission by serial transmission.
- 6. display drive module as claimed in claim 5, it is characterised in that：The data source circuit chip also has a line Memory, the shift register output to be arranged in the digital signal of parallel transmission by a panel display location, And stored in order.
- 7. display drive module as claimed in claim 6, it is characterised in that：The data source circuit chip also has an electricity Flat booster circuit, an operating voltage of the digital signal the line storage to be exported are boosted.
- 8. display drive module as claimed in claim 7, it is characterised in that：The data source circuit chip also has a number Bit pad, the digital signal of the lever boosting circuit output is converted to the analog voltage, and is sent to institute State on output buffer.
- 9. display drive module as claimed in claim 1, it is characterised in that：The output buffer position is in array electricity One non-display area of road floor.
- 10. display drive module as claimed in claim 1, it is characterised in that：The display drive module includes multiple The output buffer, is separately positioned on two lateral margins of the array base palte opposition.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510897295.1A CN105469755B (en) | 2015-12-08 | 2015-12-08 | Display drive module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510897295.1A CN105469755B (en) | 2015-12-08 | 2015-12-08 | Display drive module |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105469755A CN105469755A (en) | 2016-04-06 |
| CN105469755B true CN105469755B (en) | 2018-04-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510897295.1A Active CN105469755B (en) | 2015-12-08 | 2015-12-08 | Display drive module |
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| Country | Link |
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| CN (1) | CN105469755B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106057142B (en) * | 2016-05-26 | 2018-12-25 | 深圳市华星光电技术有限公司 | Display device and its control method |
| CN106875878B (en) | 2017-02-27 | 2020-04-14 | 京东方科技集团股份有限公司 | Temperature detection circuit, display panel and display device |
| CN106910481B (en) * | 2017-04-26 | 2019-07-12 | 深圳市华星光电技术有限公司 | A kind of display panel and liquid crystal display |
| US10423018B2 (en) | 2017-04-26 | 2019-09-24 | Shenzhen China Star Optoelectronics Technology Co., Ltd | Display panel with amplifying circuit configured to amplify scanning signal and liquid crystal display |
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|---|---|---|---|---|
| CN1705011A (en) * | 2004-05-31 | 2005-12-07 | Lg.菲利浦Lcd株式会社 | Driving circuit built-in liquid crystal display panel |
| CN1889164A (en) * | 2005-06-27 | 2007-01-03 | Lg.菲利浦Lcd株式会社 | Method and apparatus for driving a liquid crystal display device capable of reducing the heating value of data driver |
| CN101083061A (en) * | 2006-05-30 | 2007-12-05 | 中华映管股份有限公司 | Thin film liquid crystal display panel driving device and method |
| CN103165067A (en) * | 2011-12-12 | 2013-06-19 | 三星电子株式会社 | Display driver and manufacturing method thereof |
| CN103413532A (en) * | 2013-07-26 | 2013-11-27 | 京东方科技集团股份有限公司 | Pixel drive circuit, pixel drive method, array substrate and liquid display device |
| CN105070262A (en) * | 2015-08-26 | 2015-11-18 | 深圳市华星光电技术有限公司 | Source drive circuit and liquid crystal display panel |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20070103412A1 (en) * | 2005-11-09 | 2007-05-10 | Pao-Yun Tang | Liquid crystal display having a voltage divider with a thermistor |
| KR20110028124A (en) * | 2009-09-11 | 2011-03-17 | 삼성전자주식회사 | Liquid crystal display |
-
2015
- 2015-12-08 CN CN201510897295.1A patent/CN105469755B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1705011A (en) * | 2004-05-31 | 2005-12-07 | Lg.菲利浦Lcd株式会社 | Driving circuit built-in liquid crystal display panel |
| CN1889164A (en) * | 2005-06-27 | 2007-01-03 | Lg.菲利浦Lcd株式会社 | Method and apparatus for driving a liquid crystal display device capable of reducing the heating value of data driver |
| CN101083061A (en) * | 2006-05-30 | 2007-12-05 | 中华映管股份有限公司 | Thin film liquid crystal display panel driving device and method |
| CN103165067A (en) * | 2011-12-12 | 2013-06-19 | 三星电子株式会社 | Display driver and manufacturing method thereof |
| CN103413532A (en) * | 2013-07-26 | 2013-11-27 | 京东方科技集团股份有限公司 | Pixel drive circuit, pixel drive method, array substrate and liquid display device |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN105469755A (en) | 2016-04-06 |
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