CN206312554U - Drive device and display module for driving display panel - Google Patents
Drive device and display module for driving display panel Download PDFInfo
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- CN206312554U CN206312554U CN201621254371.3U CN201621254371U CN206312554U CN 206312554 U CN206312554 U CN 206312554U CN 201621254371 U CN201621254371 U CN 201621254371U CN 206312554 U CN206312554 U CN 206312554U
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- 239000004973 liquid crystal related substance Substances 0.000 description 3
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Abstract
The utility model discloses a kind of drive device for driving display panel, including：Processor module, initialization information and self-refresh frequency for obtaining display panel；Control module, is connected with processor module, for obtaining signalling channel number according to Timing information and self-refresh frequency, and generates control signal according to signalling channel number；Signal source module, is connected with processor module and control module, for generating first voltage signal corresponding with signalling channel number according to initialization information and control signal and sending to display panel to light display panel.The utility model also provides a kind of display module, signalling channel number required for obtaining display panel by control module, and signal source module is exported the corresponding first voltage signal of unlike signal channel number to light display panel according to signalling channel number, the inconvenience of change program tape when reducing debugging, improve debugging efficiency, reduces cost.
Description
Technical field
The utility model belongs to technical field of integrated circuits, more particularly, to a kind of drive device and display module.
Background technology
Generally, liquid crystal display module (LCM) is a kind of display device, its liquid crystal display panel, for driving liquid crystal display
Driver element, backlight of panel etc. are constituted.
Fig. 1 is the structural framing figure of existing display module.The display module includes display panel 10 and drive device
20, wherein, the drive device 20 includes processor module 21, signal source module 22 and signal conversion module 23.Processor
Module 21 by serial communication will initialize etc. information be sent to signal source module 22, now need artificially to learn display panel 10
Timing information (temporal information) and refreshing frequency etc., the LVDS (Low-Voltage needed for then judging the display panel 10
Differential Signaling, low-voltage differential signal) it is single channel or binary channels, manually change signal source module
22 internal processes, give the display panel 10, or be converted into other by signal conversion module 23 by correct signal transmission
The signal of type such as MIPI (Mobile Industry Processor Interface, mobile Industry Processor Interface) signal,
EDP (Embedded Display Port, embedded display port) signal etc..When the display panel 10 resolution ratio or
When refreshing frequency is higher, due to the limitation of processor chips, it is impossible to light the display panel 10 by single channel LVDS signals,
It can only successfully be lighted by binary channels LVDS signals.If the LVDS signals needed for display panel 10 are carried with signal source module
Single binary channels of the LVDS signals of confession is not inconsistent can cause display panel 10 to show abnormal or cannot light.
The solution current for above mentioned problem be：Output is realized by changing the program inside LVDS signal sources
LVDS signals are single channel or binary channels；Or it is twin-channel by realizing LVDS signal lists by outside tool hardware device
Switching.Although such scheme can solve the problem that problem, but need change program and download manually, borrows outside tool hardware and sets
Tool resource and space can be taken when standby, this causes inconvenience to tool designer and user.
Utility model content
The purpose of this utility model is to provide a kind of drive device and display module for driving display panel.
According to one side of the present utility model, there is provided a kind of drive device, for lighting display panel, including：
Processor module, initialization information and self-refresh frequency for obtaining the display panel, wherein, it is described first
Beginning information includes Timing information and display information；
Control module, is connected with the processor module, for being obtained according to the Timing information and self-refresh frequency
The number of winning the confidence channel number, and control signal is generated according to the signalling channel number；
Signal source module, is connected with the processor module and control module, for according to the first of the display panel
Beginning information and control signal generate first voltage signal corresponding with the signalling channel number, and by the first voltage
Signal is sent to the display panel to light the display panel.
Preferably, the control module includes：Parameter acquiring unit, during for obtaining pixel according to the initialization information
Clock parameter；Signalling channel unit, for according to the pixel clock parameter acquiring signalling channel number；Control unit, for root
Control signal is generated according to the signalling channel number.
Preferably, the signalling channel number that the signal source module is provided includes 1 and 2.
Preferably, when the pixel clock parameter is less than first threshold, the signalling channel number is 1；When the picture
When plain timing parameter is more than first threshold, the signalling channel number is 2, wherein, first threshold is less than Second Threshold.
Preferably, the signalling channel number that the signal source module is provided includes 1,2 and 4.
Preferably, when the pixel clock parameter is less than first threshold, the signalling channel number is 1；When the pixel
More than first threshold and during less than Second Threshold, the signalling channel number is 2 to timing parameter；When the pixel clock parameter is big
When Second Threshold, the signalling channel number is 4, wherein, first threshold is less than Second Threshold.
Preferably, the first voltage signal is low-voltage differential signal.
Preferably, the drive device also includes：Signal conversion module, is connected with the signal source module, for by institute
State first voltage signal and be converted into second voltage signal and send to the display panel to light the display panel.
Preferably, the second voltage signal is MIPI signals, eDP signals.
Drive device according to another aspect of the present utility model, there is provided a kind of display module including above-mentioned and display
Panel, the drive device is according to the corresponding first voltage signal of the different port numbers of the initialization information of display panel selection or incites somebody to action
First voltage signal is sent to the display panel to light the display panel after being converted into second voltage signal.
Preferably, the display panel shows described first according to the first voltage signal or second voltage signal that receive
Voltage signal or the corresponding picture of second voltage signal.
Drive device and display module for driving display panel that the utility model is provided, are obtained by control module
Signalling channel number required for display panel, and it is logical signal source module is exported unlike signal according to the signalling channel number
To light display panel, the inconvenience of change program tape, improves tune to the corresponding first voltage signal of road number when reducing debugging
Examination efficiency, reduces cost.
Brief description of the drawings
By description referring to the drawings to the utility model embodiment, of the present utility model above-mentioned and other mesh
, feature and advantage will be apparent from, in the accompanying drawings：
Fig. 1 shows the structural framing figure of existing display module；
Fig. 2 shows that the structure of the drive device for driving display panel provided according to the utility model embodiment is shown
It is intended to；
Fig. 3 shows the structural framing figure of the display module provided according to the utility model embodiment.
Specific embodiment
Various embodiments of the present utility model are more fully described hereinafter with reference to accompanying drawing.In various figures, identical
Element is represented using same or similar reference.For the sake of clarity, the various pieces in accompanying drawing are not drawn to paint
System.
The utility model can be presented in a variety of manners, some of them example explained below.
Fig. 2 shows that the structure of the drive device for driving display panel provided according to the utility model embodiment is shown
It is intended to.As shown in Fig. 2 the drive device 20 includes processor module 21, control module 22 and signal source module 23, for driving
Dynamic display panel 10.
Processor module 21 is used to obtain the initialization information and self-refresh frequency of the display panel 10.
In the present embodiment, initialization information is sent to signal source module by processor module 21 by serial port communicating protocol
23.Wherein, the initialization information includes Timing information and display information, and the Timing information includes display panel 10
Resolution ratio, Block information etc..The self-refresh frequency is 60Hz.
Control module 22 is connected with the processor module 21, for according to the Timing information and self-refresh frequency
Signalling channel number is obtained, and control signal is generated according to the signalling channel number.
In the present embodiment, the control module 22 obtains Timing information and self-refresh from the processor module 21
Frequency, and signalling channel number is obtained according to the Timing information and self-refresh frequency, then according to the signalling channel
Number generates control information.
Specifically, the control module 22 includes parameter acquiring unit 221, signalling channel unit 222 and control unit
223.Wherein, the parameter acquiring unit 221 is used to obtain pixel clock parameter (PCLK, Pixel according to the initialization information
CLOCK)；The signalling channel unit 222 is used for according to the pixel clock parameter acquiring signalling channel number；The control is single
Unit 223 is used to generate control signal according to the signalling channel number.
Signal source module 23 is connected with the processor module 21 and control module 22, for according to the display panel
10 initialization information and control signal generate first voltage signal corresponding with the signalling channel number, and by described the
One voltage signal is sent to the display panel 10 to light the display panel 10.
In the present embodiment, the initialization information of display panel 10 is sent to signal source module 23 by processor module 21,
Timing information and self-refresh frequency are sent to control module 22 simultaneously, control module 22 is according to Timing information and certainly
Refreshing frequency generates control signal and sends to the signal source module 23.The signal source module 23 is according to the display panel
10 initialization information and control signal generates first voltage signal corresponding with the signalling channel number, is then forwarded to
The display panel 10 is lighting the display panel 10.Wherein, first voltage signal is that LVDS signals (believe by low voltage difference
Number).
In a preferred embodiment, the signalling channel number that the signal source module is provided is 1 and 2.
In the present embodiment, when the pixel clock parameter is less than first threshold, the signalling channel number is 1；When
When the pixel clock parameter is more than first threshold, the signalling channel number is 2.
In a preferred embodiment, the signalling channel number that the signal source module is provided is 1,2 and 4.
In the present embodiment, when the pixel clock parameter is less than first threshold, the signalling channel number is 1；Work as institute
Pixel clock parameter is stated more than first threshold and during less than Second Threshold, the signalling channel number is 2；When the pixel clock
When parameter is more than Second Threshold, the signalling channel number is 4, wherein, first threshold is less than Second Threshold.
In a preferred embodiment, the drive device also includes signal conversion module 24, with the signal source mould
Block 23 is connected, and is sent to the display panel 10 to light for the first voltage signal to be converted into second voltage signal
State display panel 10.
In the present embodiment, the second voltage signal is MIPI signals, eDP signals.
The drive device for driving display panel that the utility model is provided, display panel institute is obtained by control module
The signalling channel number of needs, and signal source module is exported unlike signal channel number correspondence according to the signalling channel number
First voltage signal to light display panel, the inconvenience of change program tape, improves debugging efficiency when reducing debugging, reduces
Cost.
Fig. 3 shows the structural framing figure of the display module provided according to the utility model embodiment.As shown in figure 3, institute
Stating display module includes display panel 10 and the drive device 20 for driving display panel 10.
Wherein, the drive device 20 selects different port numbers corresponding first according to the initialization information of display panel 10
Be converted into for first voltage signal to send described aobvious to light to the display panel 10 after second voltage signal by voltage signal
Show panel 10.
In the present embodiment, the display panel 10 shows according to the first voltage signal or second voltage signal that receive
The first voltage signal or the corresponding picture of second voltage signal.
The drive device 20 includes processor module 21, control module 22 and signal source module 23, is shown for driving
Panel 10.
Processor module 21 is used to obtain the initialization information and self-refresh frequency of the display panel 10.
In the present embodiment, initialization information is sent to signal source module by processor module 21 by serial port communicating protocol
23.Wherein, the initialization information includes Timing information and display information, and the Timing information includes display panel 10
Resolution ratio, Block information etc..The self-refresh frequency is 60Hz.
Control module 22 is connected with the processor module 21, for according to the Timing information and self-refresh frequency
Signalling channel number is obtained, and control signal is generated according to the signalling channel number.
In the present embodiment, the control module 22 obtains Timing information and self-refresh from the processor module 21
Frequency, and signalling channel number is obtained according to the Timing information and self-refresh frequency, then according to the signalling channel
Number generates control information.
Specifically, the control module 22 includes parameter acquiring unit 221, signalling channel unit 222 and control unit
223.Wherein, the parameter acquiring unit 221 is used to obtain pixel clock parameter (PCLK, Pixel according to the initialization information
CLOCK)；The signalling channel unit 222 is used for according to the pixel clock parameter acquiring signalling channel number；The control is single
Unit 223 is used to generate control signal according to the signalling channel number.
Signal source module 23 is connected with the processor module 21 and control module 22, for according to the display panel
10 initialization information and control signal generate first voltage signal corresponding with the signalling channel number, and by described the
One voltage signal is sent to the display panel 10 to light the display panel 10.
In the present embodiment, the initialization information of display panel 10 is sent to signal source module 23 by processor module 21,
Timing information and self-refresh frequency are sent to control module 22 simultaneously, control module 22 is according to Timing information and certainly
Refreshing frequency generates control signal and sends to the signal source module 23.The signal source module 23 is according to the display panel
10 initialization information and control signal generates first voltage signal corresponding with the signalling channel number, is then forwarded to
The display panel 10 is lighting the display panel 10.Wherein, first voltage signal is that LVDS signals (believe by low voltage difference
Number).
In a preferred embodiment, the signalling channel number that the signal source module is provided is 1 and 2.
In the present embodiment, when the pixel clock parameter is less than first threshold, the signalling channel number is 1；When
When the pixel clock parameter is more than first threshold, the signalling channel number is 2.
In a preferred embodiment, the signalling channel number that the signal source module is provided is 1,2 and 4.
In the present embodiment, when the pixel clock parameter is less than first threshold, the signalling channel number is 1；Work as institute
Pixel clock parameter is stated more than first threshold and during less than Second Threshold, the signalling channel number is 2；When the pixel clock
When parameter is more than Second Threshold, the signalling channel number is 4, wherein, first threshold is less than Second Threshold.
In a preferred embodiment, the drive device also includes signal conversion module 24, with the signal source mould
Block 23 is connected, and is sent to the display panel 10 to light for the first voltage signal to be converted into second voltage signal
State display panel 10.
In the present embodiment, the second voltage signal is MIPI signals, eDP signals.
The drive device for driving display panel that the utility model is provided, display panel institute is obtained by control module
The signalling channel number of needs, and signal source module is exported unlike signal channel number correspondence according to the signalling channel number
First voltage signal to light display panel, the inconvenience of change program tape, improves debugging efficiency when reducing debugging, reduces
Cost.
According to embodiment of the present utility model as described above, these embodiments do not have all of details of detailed descriptionthe,
Also it is only described specific embodiment not limit the utility model.Obviously, as described above, many modifications and change can be made
Change.This specification is chosen and specifically describes these embodiments, is to preferably explain that principle of the present utility model and reality should
With so that skilled artisan can repairing using the utility model and on the basis of the utility model well
Change and use.The scope that protection domain of the present utility model should be defined by the utility model claim is defined.
Claims (10)
1. a kind of drive device for driving display panel, it is characterised in that including：
Processor module, initialization information and self-refresh frequency for obtaining the display panel, wherein, the initialization
Information includes Timing information and display information；
Control module, is connected with the processor module, for obtaining letter according to the Timing information and self-refresh frequency
Number channel number, and control signal is generated according to the signalling channel number；
Signal source module, is connected with the processor module and control module, for the initialization according to the display panel
Information and control signal generate first voltage signal corresponding with the signalling channel number, and by the first voltage signal
Send to the display panel to light the display panel.
2. drive device according to claim 1, it is characterised in that the control module includes：
Parameter acquiring unit, for obtaining pixel clock parameter according to the Timing information and self-refresh frequency；
Signalling channel unit, for according to the pixel clock parameter acquiring signalling channel number；
Control unit, for generating control signal according to the signalling channel number.
3. drive device according to claim 2, it is characterised in that the signalling channel number that the signal source module is provided
Including 1 and 2.
4. drive device according to claim 3, it is characterised in that when the pixel clock parameter is less than first threshold
When, the signalling channel number is 1；When the pixel clock parameter is more than first threshold, the signalling channel number is 2.
5. drive device according to claim 2, it is characterised in that the signalling channel number that the signal source module is provided
Including 1,2 and 4.
6. drive device according to claim 5, it is characterised in that when the pixel clock parameter is less than first threshold,
The signalling channel number is 1；When the pixel clock parameter is more than first threshold and during less than Second Threshold, the signal leads to
Road number is 2；When the pixel clock parameter is more than Second Threshold, the signalling channel number is 4, wherein, first threshold
Less than Second Threshold.
7. drive device according to claim 1, it is characterised in that the first voltage signal is low voltage difference letter
Number.
8. drive device according to claim 1, it is characterised in that also include：
Signal conversion module, is connected with the signal source module, for the first voltage signal to be converted into second voltage letter
Number send to the display panel lighting the display panel.
9. drive device according to claim 8, it is characterised in that the second voltage signal is that MIPI signals, eDP believe
Number.
10. a kind of display module, it is characterised in that including the drive device as described in claim any one of 1-9 and display
Panel,
The drive device is according to the corresponding first voltage signal of the different port numbers of the initialization information of display panel selection or incites somebody to action
First voltage signal is sent to the display panel to light the display panel after being converted into second voltage signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621254371.3U CN206312554U (en) | 2016-11-14 | 2016-11-14 | Drive device and display module for driving display panel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621254371.3U CN206312554U (en) | 2016-11-14 | 2016-11-14 | Drive device and display module for driving display panel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206312554U true CN206312554U (en) | 2017-07-07 |
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ID=59244861
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621254371.3U Active CN206312554U (en) | 2016-11-14 | 2016-11-14 | Drive device and display module for driving display panel |
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| Country | Link |
|---|---|
| CN (1) | CN206312554U (en) |
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2016
- 2016-11-14 CN CN201621254371.3U patent/CN206312554U/en active Active
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Address after: 215301, 1, Longteng Road, Kunshan, Jiangsu, Suzhou Patentee after: InfoVision Optoelectronics(Kunshan)Co.,Ltd. Address before: 215301, 1, Longteng Road, Kunshan, Jiangsu, Suzhou Patentee before: INFOVISION OPTOELECTRONICS (KUNSHAN) Co.,Ltd. |
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| CP01 | Change in the name or title of a patent holder |