CN105469755A - Displayer driving module - Google Patents
Displayer driving module Download PDFInfo
- Publication number
- CN105469755A CN105469755A CN201510897295.1A CN201510897295A CN105469755A CN 105469755 A CN105469755 A CN 105469755A CN 201510897295 A CN201510897295 A CN 201510897295A CN 105469755 A CN105469755 A CN 105469755A
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- China
- Prior art keywords
- driver module
- data source
- display driver
- source circuit
- output buffer
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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
- G09G3/34—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
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- 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 invention discloses a displayer driving module. The displayer driving module comprises at least one output buffer and a data source circuit chip; the output buffers are arranged on at least one side edge of an array substrate and electrically connected with a driving circuit on the array substrate to jointly form an array circuit layer; the data source circuit chip is adjacently connected to at least one side of the array substrate and used for being electrically connected with the output buffers on the array substrate; the data source circuit chip receives data transmitted by a control chip and generates an analog voltage value. The displayer driving module can lower the manufacturing cost of the data source circuit chip and solve the problem of over high temperature of the data source circuit chip by integrating the output buffers on the array substrate.
Description
Technical field
The invention relates to a kind of driver module, relate to a kind of Display Driver module especially.
Background technology
TFT-LCD (ThinFilmTransistorLiquidCrystalDisplay) panel, in the course of the work, need to convert digit value to analog voltage by data source circuit chip (sourceIC), then the data circuit of analog voltage on array layer is carried out discharge and recharge to the liquid crystal of described panel, to realize the normal display of each pixel.
General data source circuit chip has multiple output channels (channel), each passage is provided with an output buffer, when described panel is in larger load for a long time, the electric current of described output buffer will increase, and makes the temperature of described data source circuit chip raise and cannot normally work.
Because the display frame of described panel changes, the load of corresponding described panel also can change, and the size of current of the output of the output buffer of described data source circuit chip is changed.Again, the major heat of described data source circuit chip is all from described output buffer, and the volume of described data source circuit chip is little, causes area of dissipation not enough, cause radiating effect poor, thus cause described data source circuit chip easily to produce higher temperature.That is, described data source circuit chip is subject to the impact of built-in output buffer (outputbuffer), can easily produce the too high situation of temperature.
Therefore, be necessary to improve the data source circuit chip of prior art, not enough with the described data source circuit chip cooling area solving prior art, be easier to the impact being subject to built-in output buffer, and the problem causing temperature too high.
Summary of the invention
In view of this, the object of the present invention is to provide a kind of Display Driver module, by output buffer is integrated on array base palte, the manufacturing cost of described data source circuit chip can be reduced, improve the problem that data source circuit chip temperature is too high.
For reaching above-mentioned object, one embodiment of the invention provides a kind of Display Driver module, comprises at least one output buffer and a data source circuit chip; Described output buffer is arranged at least one lateral margin of array basal plate, and is electrically connected with the one drive circuit on described array base palte and jointly forms an array circuit layer; Described data source circuit chip is adjacent at least side of described array base palte, and in order to be electrically connected the output buffer on described array base palte, described data source circuit chip receives the data that a control chip is launched, and produces an analog voltage.
In one embodiment of this invention, described output buffer is at least one metal oxide semiconductor switch.
In one embodiment of this invention, described output buffer is at least one amplifying circuit, and described amplifying circuit respectively has multiple phase inverters of even level serial connection.
In one embodiment of this invention, described data source circuit chip has a receiver, in order to receive the data that described control chip is launched, and a differential signal of described data is converted into a digital signal.
In one embodiment of this invention, described data source circuit chip also has a shift register, is converted to parallel transmission in order to the digital signal exported by described receiver by serial transmission.
In one embodiment of this invention, described data source circuit chip also has a line storage, in order to by institute's displacement register, the described digital signal exported in parallel transmission arranges by a panel display position, and stores in order.
In one embodiment of this invention, described data source circuit chip also has a lever boosting circuit, and the operating voltage in order to the digital signal exported by described line storage is boosted.
In one embodiment of this invention, described data source circuit chip also has a digital converter, is converted to described analog voltage, and is sent on described output buffer in order to the digital signal exported by described lever boosting circuit.
In one embodiment of this invention, described output buffer position is at a non-display area of described array circuit layer.
In one embodiment of this invention, described Display Driver module comprises multiple described output buffer, is separately positioned on two described lateral margins of described array base palte opposition.
As mentioned above, by described output buffer is integrated on described array base palte, can compared with the described array base palte processing procedure of the optimization of limits, reduce the manufacturing cost of described data source circuit chip, effectively promote the product quality of described Display Driver module and improve the market price competition power of product.In addition, utilizing is integrated on described array base palte by described output buffer, the heat that described output buffer can be produced, the area of dissipation larger by described array base palte dispels the heat, the temperature of described data source circuit chip is obviously declined, and then improves the too high problem of described data source circuit chip temperature.
Accompanying drawing explanation
Fig. 1 is a schematic diagram of inventive display driver module one preferred embodiment.
Fig. 2 is the side view that the output buffer of inventive display driver module one preferred embodiment is arranged on array base palte.
Fig. 3 is a schematic diagram of the output buffer of inventive display driver module one preferred embodiment.
Fig. 4 is a circuit diagram of the output buffer of inventive display driver module one preferred embodiment.
Embodiment
The explanation of following embodiment is graphic with reference to what add, can in order to the specific embodiment implemented in order to illustrate the present invention.Moreover, the direction term that the present invention mentions, such as upper and lower, top, the end, front, rear, left and right, inside and outside, side, surrounding, central authorities, level, transverse direction, vertical, longitudinal direction, axis, radial direction, the superiors or orlop etc., be only the direction with reference to annexed drawings.Therefore, the direction term of use is in order to illustrate and to understand the present invention, and is not used to limit the present invention.
Please refer to shown in Fig. 1 and 2, for a preferred embodiment of inventive display driver module, wherein said Display Driver module 100 comprises output buffer 2 and a data source circuit chip 3, described Display Driver module 100 is applied in Thin Film Transistor-LCD (ThinFilmTransistorLiquidCrystalDisplay, be called for short TFT-LCD) on, in order to convert digit value to analog voltage, again analog voltage is carried out discharge and recharge through data circuit to liquid crystal, realize the normal display effect of each pixel, in the present embodiment, be described to arrange an output buffer 2, but also can be provided with multiple output buffer 2 in other embodiments, do not limit to by the present embodiment.The present invention is by hereafter describing the detail structure of the above-mentioned each assembly of each embodiment, assembled relation and operation principles thereof in detail.
Please refer to shown in Fig. 1 and 2, described output buffer 2 is arranged on a lateral margin of array basal plate 101, and is electrically connected with the one drive circuit 102 on described array base palte 101 and jointly forms an array circuit layer (see Fig. 2).In more detail, described output buffer 2 is at a non-display area of described array circuit layer periphery, described non-display area refers to when described array base palte 101 and a subtend substrate (not illustrating) are assembled into a display panels jointly, position is in the region of a frame glue outside of described display panels, and position is in the Ze Weiyi viewing area, region of the frame glue inside of described display panels, wherein said driving circuit 102 is ascended the throne in the viewing area of described array circuit layer.Moreover, by the design of display panels specification, described Display Driver module 100 can comprise multiple described output buffer 2, is all arranged on the single lateral margin (as margo dexter or left border) of described array base palte 101 in the mode of spaced linear arrangement; Or described Display Driver module 100 also can comprise multiple described output buffer 2, be arranged on two lateral margins (as left border and margo dexter) of described array base palte 101 opposition in the mode of spaced linear arrangement respectively.
Continuous with reference to shown in Fig. 1 and 2, described data source circuit chip 3 is adjacent to the side of described array base palte 101, in order to be electrically connected the output buffer 2 on described array base palte 101.Described data source circuit chip 3 receives the data that a control chip 103 is launched, and then produces an analog voltage.Described data source circuit chip 3 has receiver 31, shift register 32, line storage 33, lever boosting circuit 34 and a digital converter 35.
Continuous with reference to shown in Fig. 1 and 2, described receiver 31 is the data of transmitter 104 transmitting receiving described control chip 103, and a differential signal of described data is converted into a digital signal; Described shift register 32 is converted to parallel transmission in order to the digital signal exported by described receiver 31 by serial transmission; Described line storage 33 in order to by institute's displacement register 32, the described digital signal exported in parallel transmission arranges by a panel display position, and stores in order; Described lever boosting circuit 34 boosts in order to an operating voltage of the digital signal exported by described line storage 33; Described digital converter 35 is converted to described analog voltage in order to the digital signal exported by described lever boosting circuit 34, and is sent on described output buffer 2.
With reference to shown in Fig. 3 and 4, in the present embodiment, described output buffer 2 is the amplifying circuit (see Fig. 4) that multiple metal oxide semiconductor switch Q1 to Q4 is formed, and described amplifying circuit has multiple phase inverters (see Fig. 3) of even level serial connection, wherein said amplifying circuit receives described metal oxide semiconductor switch Q1 by a voltage input end Vin and described metal oxide semiconductor switch Q4 is metering function, described metal oxide semiconductor switch Q2 and described metal oxide semiconductor switch Q3 is coordinated to form push-pull circuit, can be consistent with the voltage realizing described voltage input end and voltage output end.
According to above-mentioned structure, described data are converted to the described differential signal (mini-LVDS) of low-voltage by described transmitter 104 and launch by described control chip 103; Described receiver 31 receives described differential signal, and is converted to the digital signal of transistor-transistor logic level (TTL), so that rear module process; Described shift register 32 is converted to parallel transmission in order to the digital signal exported by described receiver 31 by serial transmission, and according to controller instruction, each data is pressed correct position stored in described line storage 33; Described lever boosting circuit 34 boosts in order to an operating voltage of the digital signal exported by described line storage 33, in order to the voltage of digital circuit is carried out the magnitude of voltage being promoted to mimic channel; Digit value is converted to actual analog voltage again through described digital converter 35 (DigitaltoAnalogConvertor, DAC); Described analog voltage push to after described output buffer 2 (outputbuffer) increases current driving capability the panel of described Thin Film Transistor-LCD driving circuit 102 in, make described panel obtain required voltage and carry out picture display.
As mentioned above, by described output buffer 2 is integrated on described array base palte 101, can compared with the optimization of limits described array base palte 101 processing procedure, reduce the manufacturing cost of described data source circuit chip 3 and improve the too high problem of described data source circuit chip 3 temperature, effectively promote the product quality of described Display Driver module 100 and improve the market price competition power of product.Be noted that, utilizing is integrated on described array base palte 101 by described output buffer 2, the heat that described output buffer 2 can be produced, the area of dissipation larger by described array base palte 101 dispels the heat, the temperature of described data source circuit chip 3 is obviously declined, thus effectively solves the problem that the data source circuit chip temperature of prior art is too high.
The present invention is described by above-mentioned related embodiment, but above-described embodiment is only enforcement example of the present invention.Must it is noted that published embodiment limit the scope of the invention.On the contrary, be contained in the spirit of claims and the amendment of scope and impartial setting to be included in scope of the present invention.
Claims (10)
1. a Display Driver module, is characterized in that: described Display Driver module comprises:
At least one output buffer, is arranged at least one lateral margin of array basal plate, and is electrically connected with the one drive circuit on described array base palte and jointly forms an array circuit layer; And
One data source circuit chip, is adjacent at least side of described array base palte, and in order to be electrically connected the output buffer on described array base palte, described data source circuit chip receives the data that a control chip is launched, and produces an analog voltage.
2. Display Driver module as claimed in claim 1, is characterized in that: described output buffer is at least one metal oxide semiconductor switch.
3. Display Driver module as claimed in claim 1, is characterized in that: described output buffer is at least one amplifying circuit, and described amplifying circuit respectively has multiple phase inverters of even level serial connection.
4. Display Driver module as claimed in claim 1, is characterized in that: described data source circuit chip has a receiver, in order to receive the data that described control chip is launched, and a differential signal of described data is converted into a digital signal.
5. Display Driver module as claimed in claim 4, is characterized in that: described data source circuit chip also has a shift register, is converted to parallel transmission in order to the digital signal exported by described receiver by serial transmission.
6. Display Driver module as claimed in claim 5, it is characterized in that: described data source circuit chip also has a line storage, in order to by institute's displacement register, the described digital signal exported in parallel transmission arranges by a panel display position, and store in order.
7. Display Driver module as claimed in claim 6, it is characterized in that: described data source circuit chip also has a lever boosting circuit, the operating voltage in order to the digital signal exported by described line storage is boosted.
8. Display Driver module as claimed in claim 7, it is characterized in that: described data source circuit chip also has a digital converter, digital signal in order to be exported by described lever boosting circuit is converted to described analog voltage, and is sent on described output buffer.
9. Display Driver module as claimed in claim 1, is characterized in that: described output buffer position is at a non-display area of described array circuit layer.
10. Display Driver module as claimed in claim 1, is characterized in that: described Display Driver module comprises multiple described output buffer, is separately positioned on two described lateral margins of described 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 |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510897295.1A CN105469755B (en) | 2015-12-08 | 2015-12-08 | Display drive module |
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| CN105469755A true CN105469755A (en) | 2016-04-06 |
| CN105469755B CN105469755B (en) | 2018-04-20 |
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| CN201510897295.1A Active CN105469755B (en) | 2015-12-08 | 2015-12-08 | Display drive module |
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Cited By (4)
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| CN106057142A (en) * | 2016-05-26 | 2016-10-26 | 深圳市华星光电技术有限公司 | Display device and control method thereof |
| CN106910481A (en) * | 2017-04-26 | 2017-06-30 | 深圳市华星光电技术有限公司 | A kind of display panel and liquid crystal display |
| WO2018153075A1 (en) * | 2017-02-27 | 2018-08-30 | 京东方科技集团股份有限公司 | Temperature measurement circuit, display panel, and display device |
| 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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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106057142A (en) * | 2016-05-26 | 2016-10-26 | 深圳市华星光电技术有限公司 | Display device and control method thereof |
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| WO2018153075A1 (en) * | 2017-02-27 | 2018-08-30 | 京东方科技集团股份有限公司 | Temperature measurement circuit, display panel, and display device |
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| 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 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105469755B (en) | 2018-04-20 |
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