CN106205547B - A kind of liquid crystal display die set and its driving circuit - Google Patents
A kind of liquid crystal display die set and its driving circuit Download PDFInfo
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- CN106205547B CN106205547B CN201610870434.6A CN201610870434A CN106205547B CN 106205547 B CN106205547 B CN 106205547B CN 201610870434 A CN201610870434 A CN 201610870434A CN 106205547 B CN106205547 B CN 106205547B
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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
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Abstract
The invention discloses a kind of liquid crystal display die set and its driving circuits, wherein the driving circuit of the liquid crystal display die set includes backlight interface module, input interface module, channel conversion module and drive module；Backlight electric power signal is received by input interface module and is exported to backlight interface module, input interface module also receives 4 channel driving signals and exports to channel conversion module, 4 channel driving signals are converted to 8 channel driving signals and exported to drive module by channel conversion module, drive module lights liquid crystal display die set according to 8 channel driving signals, 4 channel driving signals are converted into 8 channel driving signals by channel conversion module and light 2K liquid crystal display die set, simplify the interface communications protocol of mainboard and liquid crystal display die set, 2K liquid crystal module can be used by the low cpu chip matched, breach the use limitation of 2K liquid crystal module, higher resolution and the display module of better display effect is set to be more widely used.
Description
Technical field
The present invention relates to technical field of liquid crystal display, in particular to a kind of liquid crystal display die set and its driving circuit.
Background technique
The mobile phone liquid crystal display die set of 2K resolution ratio is both needed to be carried out driving using 8 channel MIPI and shown now, interface protocol
As follows: by 2 couples of clock, 8 pairs of date lines and cell phone platform carry out data communication, however existing mould group is connect using this communication
Mouth has the disadvantage in that the 1, requirement to mobile phone main control chip is very high, and resource is very deficient, and only high pass valiant imperial 800 can at present
To support；2, it is unfavorable for carrying out marketing, many cellular telephone companies do not have corresponding main control chip to support；3, due to communication interface number
Amount is more, and area required for flexible circuit board is big, at high cost；4, liquid crystal display die set factory can not carry out electrical detection to product,
Without production.
Thus the prior art could be improved and improve.
Summary of the invention
Place in view of above-mentioned deficiencies of the prior art, the purpose of the present invention is to provide a kind of liquid crystal display die set and its drives
4 channel driving signals are converted to 8 channel driving signals by increase channel conversion module to light 2K liquid crystal display by dynamic circuit
Mould group simplifies the interface communications protocol of mainboard and liquid crystal display die set, realizes through the low cpu chip scheme matched
Using 2K liquid crystal module, the use limitation of 2K liquid crystal module is breached, the display of higher resolution and better display effect is made
Mould group is more widely used.
In order to achieve the above object, this invention takes following technical schemes:
A kind of driving circuit of liquid crystal display die set comprising backlight interface module, input interface module, channel modulus of conversion
Block and drive module；Backlight electric power signal is received by input interface module and is exported to backlight interface module, input interface module
It also receives 4 channel driving signals and exports to channel conversion module, channel conversion module is converted to 4 channel driving signals
8 channel driving signals are simultaneously exported to drive module, and drive module lights liquid crystal display die set according to 8 channel driving signals.
In the driving circuit of the liquid crystal display die set, the drive module includes driving chip, the first filter unit
And voltage regulation unit, the first operating voltage, the second operating voltage and third operating voltage are exported to liquid crystal display by driving chip
Power supply, and export the first operating voltage and the second operating voltage and power to channel conversion module；By the first filter unit to described
First operating voltage, the second operating voltage and third operating voltage are filtered；By voltage regulation unit to first work
Voltage, the second operating voltage and third operating voltage carry out steady pressure treatment.
In the driving circuit of the liquid crystal display die set, the channel conversion module include conversion chip, clock unit,
Second filter unit and pressure unit；4 channel driving signals are received by conversion chip and are converted into 8 channels drives letter
Number output is to drive module；Clock signal is exported to conversion chip by clock unit；It is by pressure unit that second work is electric
Pressure drop is powered down to predeterminated voltage to conversion chip；It is filtered by power supply of the filter unit to conversion chip.
In the driving circuit of the liquid crystal display die set, the end DSIA_D0_N of the driving chip, the end DSIA_D0_P,
The end DSIA_D1_N, the end DSIA_D1_P, the end DSIA_D2_N, the end DSIA_D2_P, the end DSIA_D3_N, the end DSIA_D3_P, DSIA_
The end CLK_N, the end DSIA_CLK_P, the end DSIB_D0_N, the end DSIB_D0_P, the end DSIB_D1_N, the end DSIB_D1_P, DSIB_D2_
N-terminal, the end DSIB_D2_P, the end DSIB_D3_N, the end DSIB_D3_P, the end DSIB_CLK_N, the end DSIB_CLK_P and the end IOVCC connect
Connect road conversion module；The end VDDI of the driving chip, the end AVDD connect input interface module with the end AVEE.
In the driving circuit of the liquid crystal display die set, first filter unit include first capacitor, the second capacitor,
Third capacitor, the 4th capacitor, the 5th capacitor, the 6th capacitor, the 7th capacitor, the 8th capacitor, the 9th capacitor, the tenth capacitor, the tenth
One capacitor, the 12nd capacitor, the 13rd capacitor, the 14th capacitor, the 15th capacitor, the 16th capacitor, the 17th capacitor, the tenth
Eight capacitors, the 19th capacitor, the 20th capacitor, the 21st capacitor, the 22nd capacitor, the 23rd capacitor, the 24th
Capacitor, the 25th capacitor；The voltage regulation unit includes Transient Suppression Diode, first diode, the second diode and third
Diode；
The end C51N of one end connection driving chip of the first capacitor, the other end connection driving chip of first capacitor
The end C51P；The end VGLX of one end connection driving chip of second capacitor, the other end ground connection of the second capacitor；The third electricity
The end VGL_REG of one end connection driving chip of appearance, the other end ground connection of third capacitor；One end of 4th capacitor, which connects, drives
The end VRGH of dynamic chip, the other end ground connection of the 4th capacitor；The end VGH of one end connection driving chip of 5th capacitor, the
The other end of five capacitors is grounded；The end C41N of one end connection driving chip of 6th capacitor, the other end of the 6th capacitor connect
Connect the end C41P of driving chip；The end VCL of one end connection driving chip of 7th capacitor, another termination of the 7th capacitor
Ground；The end C32N of one end connection driving chip of 8th capacitor, the C32P of the other end connection driving chip of the 8th capacitor
End；The end C31N of one end connection driving chip of 9th capacitor, the C31P of the other end connection driving chip of the 9th capacitor
End；The end C11N of one end connection driving chip of tenth capacitor, the C11P of the other end connection driving chip of the tenth capacitor
End；The end VCOM of one end connection driving chip of 11st capacitor；One end of 12nd capacitor connects driving chip
The end VGMN；The end AVEER of one end connection driving chip of 13rd capacitor；One end of 14th capacitor, which connects, drives
The end AVEE of dynamic chip；The end VDDA of one end connection driving chip of 15th capacitor；One end of 16th capacitor
Connect the end DVDD of driving chip；The end VDDI of one end connection driving chip of 17th capacitor；18th capacitor
One end connection driving chip the end AVDD；The end AVDDR of one end connection driving chip of 19th capacitor；Described second
The end VGMP of one end connection driving chip of ten capacitors；The VEQP_SD of one end connection driving chip of 21st capacitor
End；The end VREF of one end connection driving chip of 22nd capacitor；One end of 23rd capacitor connects driving
The end VEQN_SD of chip；The end MVDDA of one end connection driving chip of 24th capacitor；25th capacitor
One end connection driving chip the end MVDDI；The other end of 11st capacitor, the other end of the 12nd capacitor, the 13rd
The other end of capacitor, the other end ground connection of the 14th capacitor, the other end of the other end of the 15th capacitor, the 16th capacitor,
The other end of 17 capacitors, the other end of the 18th capacitor, the other end of the 19th capacitor, the other end of the 20th capacitor,
The other end of 21 capacitors, the other end of the 22nd capacitor, the other end of the 23rd capacitor, the 24th capacitor it is another
The other end of one end and the 25th capacitor is grounded；
The end VCOM of one end connection driving chip of the Transient Suppression Diode, another termination of Transient Suppression Diode
Ground；The anode of the first diode and the second diode is all connected with the end VGLX of driving chip, and the first diode is born
Pole ground connection, the end AVEE of the cathode connection driving chip of second diode；The anode connection driving of the third diode
The end AVDD of chip, the end VGH of the cathode connection driving chip of third diode.
In the driving circuit of the liquid crystal display die set, the end MRX_DN0, the end MRX_DP0, MRX_ of the conversion chip
The end DN1, the end MRX_DP1, the end MRX_DN2, the end MRX_DP2, the end MRX_DN3, the end MRX_DP3, the end MRX_CN and the end MRX_CP connect
Connect input interface module；
The end DSIA_D0_N of the end the MTX_DN0 connection driving chip of the conversion chip, the MTX_ of the conversion chip
The end DSIA_D0_P of DP0 connection driving chip, the DSIA_D1_N of the end the MTX_DN1 connection driving chip of the conversion chip
End, the end DSIA_D1_P of the MTX_DP1 connection driving chip of the conversion chip, the end the MTX_DN2 connection of the conversion chip
The end DSIA_D2_N of driving chip, the end DSIA_D2_P of the MTX_DP2 connection driving chip of the conversion chip, the conversion
The end DSIA_D3_N of the end the MTX_DN3 connection driving chip of chip, the MTX_DP3 connection driving chip of the conversion chip
The end DSIA_D3_P, the end DSIB_D0_N of the end the MTX_DN4 connection driving chip of the conversion chip, the conversion chip
The end DSIB_D0_P of MTX_DP4 connection driving chip, the DSIB_ of the end the MTX_DN5 connection driving chip of the conversion chip
The end D1_N, the end DSIB_D1_P of the MTX_DP5 connection driving chip of the conversion chip, the end MTX_DN6 of the conversion chip
The end DSIB_D2_N of driving chip is connected, the end DSIB_D2_P of the MTX_DP6 connection driving chip of the conversion chip is described
The end DSIB_D3_N of the end the MTX_DN7 connection driving chip of conversion chip, the MTX_DP7 connection of the conversion chip drive core
The end DSIB_D3_P of piece, the end DSIA_CLK_N of the end the MTX_CN0 connection driving chip of the conversion chip, the conversion core
The end DSIA_CLK_P of the end the MTX_CP0 connection driving chip of piece, the end the MTX_CN1 connection driving chip of the conversion chip
The end DSIB_CLK_N, the end DSIB_CLK_P of the end the MTX_CP1 connection driving chip of the conversion chip.
In the driving circuit of the liquid crystal display die set, the clock unit includes the 26th capacitor, the 27th
Capacitor, first resistor and crystal oscillator；Second filter unit include the 28th capacitor, the 29th capacitor, the 30th capacitor,
31st capacitor, the 32nd capacitor；The pressure unit includes decompression chip and the 33rd capacitor；
One end of the crystal oscillator connects the end XTAL_OUT of conversion chip and one end of first resistor, also passes through the 26th
Capacity earth, the other end of the crystal oscillator connect the end XTAL_IN of conversion chip and the other end of first resistor, also pass through second
17 capacity earths；
The end C11N of one end connection conversion chip of 28th capacitor, the other end connection of the 28th capacitor turn
Change the end C11P of chip；29th capacitor one end connection conversion chip the end C12N, the 29th capacitor it is another
The end C12P of end connection conversion chip；The end VDDRAM of one end connection conversion chip of 30th capacitor, the described 30th
The end BGOUT of one end connection conversion chip of one capacitor, the VCI_CP of one end connection conversion chip of the 32nd capacitor
End, the other end, the other end of the 31st capacitor and the other end of the 32nd capacitor of the 30th capacitor are grounded；
The end AVDD of the input terminal connection driving chip of the decompression chip, the output end of the decompression chip connect conversion
The end VCORE of chip also passes through the 33rd capacity earth, the end the GND ground connection of the decompression chip.
In the driving circuit of the liquid crystal display die set, the backlight interface module includes first interface, the input
Interface module includes the first connector, and the 1st foot of the first interface connects the end LEDA of the first connector, and the of first interface
2 feet connect the end LEDK1 of the first connector, and the 3rd foot of first interface connects the end LEDK2 of the first connector；
The end VDDI of the end the IOVCC connection driving chip of first connector, the end AVDD of first connector connects
Connect the end AVDD of driving chip, the end AVEE of the AVEE connection driving chip of first connector；First connector
The end D0N connects the end MRX_DN0 of the conversion chip, and the end D0P of first connector connects the MRX_ of the conversion chip
The end DP0, the end D1N of first connector connect the end MRX_DN1 of the conversion chip, the end D1P of first connector
The end MRX_DP1 of the conversion chip is connected, the end D2N of first connector connects the end MRX_DN2 of the conversion chip,
The end D2P of first connector connects the end MRX_DP2 of the conversion chip, and the end D3N of first connector connects institute
State the end MRX_DN3 of conversion chip, the end D3P of first connector connects the end MRX_DP3 of the conversion chip, and described
The end CKN of a connector connects the end MRX_CN of the conversion chip, and the end CKP of first connector connects the conversion core
The end MRX_CP of piece.
A kind of liquid crystal display die set, including shell are provided with flexible circuit board in the shell, wherein the flexible electrical
The driving circuit of liquid crystal display die set as described above is provided on the plate of road.
In the liquid crystal display die set, the back side of the input interface module is provided with the first stiffening plate, the channel
The back side of conversion module is provided with the second stiffening plate, and the back side of the drive module is provided with third stiffening plate.
Compared to the prior art, in liquid crystal display die set provided by the invention and its driving circuit, the liquid crystal display mode
The driving circuit of group includes backlight interface module, input interface module, channel conversion module and drive module；By input interface mould
Block receives backlight electric power signal and exports to backlight interface module, and input interface module also receives 4 channel driving signals and exports
To channel conversion module, 4 channel driving signals are converted to 8 channel driving signals and exported to driving by channel conversion module
Module, drive module light liquid crystal display die set according to 8 channel driving signals, are led to by increasing channel conversion module by 4
Road driving signal is converted to 8 channel driving signals to light 2K liquid crystal display die set, makes the interface of mainboard and liquid crystal display die set
Communication protocol is simplified, and realizes and 2K liquid crystal module can be used by the low cpu chip scheme matched, breach 2K liquid crystal module
Use limitation, so that higher resolution and the display module of better display effect is more widely used.
Detailed description of the invention
Fig. 1 is the structural block diagram of the driving circuit of liquid crystal display die set provided by the invention；
Fig. 2 is first part's schematic diagram of driving chip in the driving circuit of liquid crystal display die set provided by the invention；
Fig. 3 is the second part schematic diagram of driving chip in the driving circuit of liquid crystal display die set provided by the invention；
Fig. 4 is the circuit diagram of voltage regulation unit in the driving circuit of liquid crystal display die set provided by the invention；
Fig. 5 is the schematic diagram of conversion chip in the driving circuit of liquid crystal display die set provided by the invention；
Fig. 6 is the circuit diagram of clock unit in the driving circuit of liquid crystal display die set provided by the invention；
Fig. 7 is the circuit diagram of pressure unit in the driving circuit of liquid crystal display die set provided by the invention；
Fig. 8 is backlight interface module and input interface module in the driving circuit of liquid crystal display die set provided by the invention
Circuit diagram；
Fig. 9 is LCD electrifying timing sequence figure in the preferred embodiment of the driving circuit of liquid crystal display die set provided by the invention；
Figure 10 is the stream of LCD display control in the preferred embodiment of the driving circuit of liquid crystal display die set provided by the invention
Cheng Tu；
Figure 11 is the positive structure schematic of liquid crystal display die set provided by the invention；
Figure 12 is the structure schematic diagram of liquid crystal display die set provided by the invention.
Specific embodiment
In view of the complexity of 2K resolution liquid crystal display module interface communications protocol in the prior art, the requirement to main control chip is high
The disadvantages of, the purpose of the present invention is to provide a kind of liquid crystal display die set and its driving circuits, by increasing channel conversion module
4 channel driving signals are converted into 8 channel driving signals to light 2K liquid crystal display die set, make mainboard and liquid crystal display die set
Interface communications protocol is simplified, and realizes and 2K liquid crystal module can be used by the low cpu chip scheme matched, breach 2K liquid crystal
The use of mould group limits, and higher resolution and the display module of better display effect is made to be more widely used.
To make the purpose of the present invention, technical solution and effect clearer, clear and definite, right as follows in conjunction with drawings and embodiments
The present invention is further described.It should be appreciated that described herein, specific examples are only used to explain the present invention, is not used to
Limit the present invention.
Liquid crystal display die set provided by the invention and its driving circuit be suitable for smart phone, tablet computer, handheld device,
In TV and other equipment with display function, referring to Fig. 1, liquid crystal display die set provided by the invention includes backlight interface mould
Block 10, input interface module 20, channel conversion module 30 and drive module 40, the backlight interface module 10, input interface mould
Block 20, channel conversion module 30 and drive module 40 are sequentially connected, and receive backlight electric power signal and defeated by input interface module 20
Out to backlight interface module 10, input interface module 20 also receives 4 channel driving signals and exports to channel conversion module 30, leads to
4 channel driving signals are converted to 8 channel driving signals and exported to drive module 40, drive module by road conversion module 30
40 light liquid crystal display die set according to 8 channel driving signals.
When it is implemented, the input interface module 20 is used to connect with display equipment such as mobile phone, plates, backlight electricity is received
Source signal is simultaneously exported to backlight interface module 10, provides corresponding constant-current supply according to different backlight designs, while described defeated
Incoming interface module 20 receives 4 channel signal of MIPI, and output valve channel conversion module 30, will be described by channel conversion module 30
4 channel signal of MIPI is converted to 8 channel signal of MIPI required for 2K liquid crystal display die set, keeps drive module 40 normal
Driving 2K liquid crystal display die set is normally shown, to cooperate the configuration of mainboard low order that can realize high definition 2K(1440*
2560) screen of resolution ratio is shown, lets user experiencing better display effect, and the market for being conducive to 2K liquid crystal display die set pushes away
Extensively.
Further, referring to Figure 2 together, Fig. 3 and Fig. 4, the drive module 40 includes driving chip U1, the first filtering
Unit (unlabeled in figure) and voltage regulation unit (unlabeled in figure), first filter unit and voltage regulation unit are all connected with driving core
Piece U1 exports the first operating voltage (being IOVCC=1.8V in the present embodiment), the second operating voltage (this implementation by driving chip U1
Example in be AVDD=5.5V) and third operating voltage (being AVEE=- 5.5V in the present embodiment) give liquid crystal display power supply, in addition drive
Dynamic chip U1 also exports the first operating voltage (being IOVCC=1.8V in the present embodiment) and the second operating voltage (is in the present embodiment
AVDD=5.5V) it powers to channel conversion module 30, to improve voltage stability, also by the first filter unit to described first
Operating voltage, the second operating voltage and third operating voltage are filtered；By voltage regulation unit to the first work electricity
Pressure, the second operating voltage and third operating voltage carry out steady pressure treatment, thus to working power and charge bump circuit into
The processing of row filtering voltage regulation, the model NT35598 of driving chip U1 described in the present embodiment.
Further, also referring to Fig. 5, Fig. 6 and Fig. 7, the channel conversion module 30 include conversion chip U2, when
Clock unit (unlabeled in figure), the second filter unit (unlabeled in figure) and pressure unit (unlabeled in figure)；The clock list
Member, the second filter unit and pressure unit are all connected with conversion chip U2, receive 4 channel driving signals simultaneously by conversion chip U2
8 channel driving signals are converted into export to drive module 40；Clock signal is exported to conversion chip U2 guarantor by clock unit
It is normal to demonstrate,prove signal sequence；It is reduced to predeterminated voltage to power second operating voltage to conversion chip U2 by pressure unit, turns
It changes chip U2 normal work and needs 1.8V and 1.2V power supply, first operating voltage IOVCC=1.8V that drive module 40 exports can be with
It powers directly to conversion chip U2, and 1.2V power supply then passes through pressure unit and is depressured to second operating voltage AVDD=5.5V
Processing is reduced to predeterminated voltage, i.e. 1.2V powers to conversion chip U2, makes its normal work；By filter unit to conversion chip
The power supply of U2 is filtered, filtering clutter, obtains stable power supply, conversion chip U2 described in the present embodiment
Using the chip of the model SSD2858 of Saloman.
When it is implemented, also referring to Fig. 8, the end DSIA_D0_N of the driving chip U1, the end DSIA_D0_P,
The end DSIA_D1_N, the end DSIA_D1_P, the end DSIA_D2_N, the end DSIA_D2_P, the end DSIA_D3_N, the end DSIA_D3_P, DSIA_
The end CLK_N, the end DSIA_CLK_P, the end DSIB_D0_N, the end DSIB_D0_P, the end DSIB_D1_N, the end DSIB_D1_P, DSIB_D2_
N-terminal, the end DSIB_D2_P, the end DSIB_D3_N, the end DSIB_D3_P, the end DSIB_CLK_N, the end DSIB_CLK_P and the end IOVCC connect
Road conversion module 30 is connected, the end VDDI, the end AVDD of the driving chip U1 connects input interface module 20 with the end AVEE, described
The power supply signal that driving chip U1 is provided by the end VDDI, the end AVDD and the end AVEE reception input interface module 20, i.e. IOVCC=
1.8V, AVDD=5.5V, AVEE=- 5.5V, driving chip U1 provide the first work electricity to channel conversion module 30 by the end IOVCC
Pressure, and data communication is carried out by 2 pairs of clock lines and 8 pairs of data lines and channel conversion module 30, it receives through channel conversion module
8 channel signal of MIPI after 30 conversions, and then 2K liquid crystal display die set is driven normally to show work, reduce 2K liquid crystal display
The use of mould group limits.In addition, input interface module 20 also provides hardware reset signal RESET and channel selecting signal IM0, lead to
The MIPI driving method of IM0 selection liquid crystal display die set is crossed, specifically, is driven for 4 channel MIPI when IM0=0, when IM0=1 is 8
Channels drive selects IM0=1 in the present embodiment, and then realizes 8 channels drives.
First filter unit includes first capacitor C1, the second capacitor C2, third capacitor C3, the 4th capacitor C4, the 5th
Capacitor C5, the 6th capacitor C6, the 7th capacitor C7, the 8th capacitor C8, the 9th capacitor C9, the tenth capacitor C10, the 11st capacitor C11,
12nd capacitor C12, the 13rd capacitor C13, the 14th capacitor C14, the 15th capacitor C15, the 16th capacitor C16, the 17th
Capacitor C17, the 18th capacitor C18, the 19th capacitor C19, the 20th capacitor C20, the 21st capacitor C21, the 22nd electricity
Hold C22, the 23rd capacitor C23, the 24th capacitor C24, the 25th capacitor C25；The voltage regulation unit includes transient state suppression
Diode TVS, first diode D1, the second diode D2 and third diode D3 processed.
The end C51N of one end connection driving chip U1 of the first capacitor C1, the other end of first capacitor C1 connect driving
The end C51P of chip U1；The end VGLX of one end connection driving chip U1 of the second capacitor C2, the other end of the second capacitor C2
Ground connection；The end VGL_REG of one end connection driving chip U1 of the third capacitor C3, the other end ground connection of third capacitor C3；Institute
State the end VRGH of one end connection driving chip U1 of the 4th capacitor C4, the other end ground connection of the 4th capacitor C4；5th capacitor
The end VGH of one end connection driving chip U1 of C5, the other end ground connection of the 5th capacitor C5；One end of the 6th capacitor C6 connects
The end C41N of driving chip U1, the end C41P of the other end connection driving chip U1 of the 6th capacitor C6；The 7th capacitor C7's
One end connects the end VCL of driving chip U1, the other end ground connection of the 7th capacitor C7；One end of the 8th capacitor C8 connects driving
The end C32N of chip U1, the end C32P of the other end connection driving chip U1 of the 8th capacitor C8；One end of the 9th capacitor C9
Connect the end C31N of driving chip U1, the end C31P of the other end connection driving chip U1 of the 9th capacitor C9；Tenth capacitor
The end C11N of one end connection driving chip U1 of C10, the end C11P of the other end connection driving chip U1 of the tenth capacitor C10；Institute
State the end VCOM of one end connection driving chip U1 of the 11st capacitor C11；One end connection driving core of the 12nd capacitor C12
The end VGMN of piece U1；The end AVEER of one end connection driving chip U1 of the 13rd capacitor C13；The 14th capacitor C14
One end connection driving chip U1 the end AVEE；The end VDDA of one end connection driving chip U1 of the 15th capacitor C15；Institute
State the end DVDD of one end connection driving chip U1 of the 16th capacitor C16；One end connection driving core of the 17th capacitor C17
The end VDDI of piece U1；The end AVDD of one end connection driving chip U1 of the 18th capacitor C18；The 19th capacitor C19
One end connection driving chip U1 the end AVDDR；The end VGMP of one end connection driving chip U1 of the 20th capacitor C20；
The end VEQP_SD of one end connection driving chip U1 of the 21st capacitor C21；One end of the 22nd capacitor C22
Connect the end VREF of driving chip U1；The end VEQN_SD of one end connection driving chip U1 of the 23rd capacitor C23；Institute
State the end MVDDA of one end connection driving chip U1 of the 24th capacitor C24；One end of the 25th capacitor C25 connects
The end MVDDI of driving chip U1；The other end of the 11st capacitor C11, the other end of the 12nd capacitor C12, the 13rd electricity
Hold the other end of C13, the other end ground connection of the 14th capacitor C14, the other end of the 15th capacitor C15, the 16th capacitor C16
The other end, the other end of the 17th capacitor C17, the other end of the 18th capacitor C18, the other end of the 19th capacitor C19, second
The other end of ten capacitor C20, the other end of the 21st capacitor C21, the other end of the 22nd capacitor C22, the 23rd electricity
The other end, the other end of the 24th capacitor C24 and the other end of the 25th capacitor C25 for holding C23 are grounded, and pass through first
Filter unit is filtered liquid crystal module working power and charge bump circuit.
The end VCOM of one end connection driving chip U1 of the Transient Suppression Diode TVS, Transient Suppression Diode TVS's
Other end ground connection；The anode of the first diode D1 and the second diode D2 are all connected with the end VGLX of driving chip U1, described
The cathode of first diode D1 is grounded, the end AVEE of the cathode connection driving chip U1 of the second diode D2；The third
The end AVDD of the anode connection driving chip U1 of diode D3, the end VGH of the cathode connection driving chip U1 of third diode D3.
Guarantee the stability of chip unit by voltage regulation unit, wherein Transient Suppression Diode TVS can protect circuit in instantaneous high pressure
Circuit stability, when transient voltage be more than circuit normal working voltage when, Transient Suppression Diode TVSTVS1 occur snowslide,
Access is provided for transient current, internal circuit is burnt from the breakdown of overvoltage or the overheat of excess electric current, makes voltage clamp
Positioned at a predetermined value, the precision components being effectively protected in circuit, from the damage of various surge pulses.
Please continue to refer to Fig. 2 to Fig. 8, the end MRX_DN0, the end MRX_DP0, the end MRX_DN1, MRX_ of the conversion chip U2
The end DP1, the end MRX_DN2, the end MRX_DP2, the end MRX_DN3, the end MRX_DP3, the end MRX_CN connect input interface with the end MRX_CP
Module 20, the end DSIA_D0_N of the end the MTX_DN0 connection driving chip U1 of the conversion chip U2, the conversion chip U2's
The end DSIA_D0_P of MTX_DP0 connection driving chip U1, the end the MTX_DN1 connection driving chip U1's of the conversion chip U2
The end DSIA_D1_N, the end DSIA_D1_P of the MTX_DP1 connection driving chip U1 of the conversion chip U2, the conversion chip U2
The end MTX_DN2 connection driving chip U1 the end DSIA_D2_N, the MTX_DP2 connection driving chip U1 of the conversion chip U2
The end DSIA_D2_P, the conversion chip U2 the end MTX_DN3 connection driving chip U1 the end DSIA_D3_N, the conversion core
The end DSIA_D3_P of the MTX_DP3 connection driving chip U1 of piece U2, the end the MTX_DN4 connection driving core of the conversion chip U2
The end DSIB_D0_N of piece U1, the end DSIB_D0_P of the MTX_DP4 connection driving chip U1 of the conversion chip U2, the conversion
The end DSIB_D1_N of the end the MTX_DN5 connection driving chip U1 of chip U2, the MTX_DP5 connection driving of the conversion chip U2
The end DSIB_D1_P of chip U1, the end DSIB_D2_N of the end the MTX_DN6 connection driving chip U1 of the conversion chip U2 are described
The end DSIB_D2_P of the MTX_DP6 connection driving chip U1 of conversion chip U2, the end the MTX_DN7 connection of the conversion chip U2
The end DSIB_D3_N of driving chip U1, the end DSIB_D3_P of the MTX_DP7 connection driving chip U1 of the conversion chip U2, institute
State the end DSIA_CLK_N of the end the MTX_CN0 connection driving chip U1 of conversion chip U2, the end MTX_CP0 of the conversion chip U2
Connect the end DSIA_CLK_P of driving chip U1, the DSIB_ of the end the MTX_CN1 connection driving chip U1 of the conversion chip U2
The end CLK_N, the end DSIB_CLK_P of the end the MTX_CP1 connection driving chip U1 of the conversion chip U2.
Input interface module 20 connects mobile phone or plate etc. and shows equipment, and 4 channel driving signals of MIPI are passed through 1 clock synchronization
Clock line and 4 pairs of data lines are exported to conversion chip U2, are converted chip for 4 channel driving signals of MIPI and are converted to 2K liquid crystal display
8 channel signal of MIPI required for mould group carries out data communication by 2 pairs of clock lines and 8 pairs of data lines and driving chip U1,
8 channel signal of MIPI is exported to driving chip U1,2K liquid crystal display die set is driven normally to show.
Specifically, the clock unit includes the 26th capacitor C26, the 27th capacitor C27, first resistor R1 and crystalline substance
Shake X1；One end of the crystal oscillator X1 connects the end XTAL_OUT of conversion chip U2 and one end of first resistor R1, also passes through second
16 capacitor C26 ground connection, the crystal oscillator X1 the other end connection conversion chip U2 the end XTAL_IN and first resistor R1 it is another
End also passes through the 27th capacitor C27 ground connection；Clock signal, which is provided, by clock unit guarantees that signal sequence is normal, specific institute
The quartz crystal oscillator X1 that crystal oscillator X1 uses 25MHz is stated, with the crystal oscillator X1 frequency of 20-30MHz needed for providing conversion chip U2.
Second filter unit includes the 28th capacitor C28, the 29th capacitor C29, the 30th capacitor C30, the
31 capacitor C31, the 32nd capacitor C32, the C11N of one end connection conversion chip U2 of the 28th capacitor C28
End, the end C11P of the other end connection conversion chip U2 of the 28th capacitor C28；One end of the 29th capacitor C29 connects
Connect the end C12N of conversion chip U2, the end C12P of the other end connection conversion chip U2 of the 29th capacitor C29；Described 30th
The end VDDRAM of one end connection conversion chip U2 of capacitor C30, one end of the 31st capacitor C31 connects conversion chip U2
The end BGOUT, the 32nd capacitor C32 one end connection conversion chip U2 the end VCI_CP, the 30th capacitor C30
The other end, the other end of the 31st capacitor C31 and the other end of the 32nd capacitor C32 be grounded；Pass through each capacitor
It is filtered and is filtered to the working power and charge bump circuit of conversion chip U2.
The pressure unit includes decompression chip U3 and the 33rd capacitor C33, and conversion chip U2, which is worked normally, to be needed
1.8V and 1.2V power supply, first operating voltage IOVCC=1.8V that drive module 40 exports can be supplied directly to conversion chip U2
Electricity, and 1.2V power supply then passes through decompression chip U3 and carries out decompression processing to second operating voltage AVDD=5.5V, is reduced to default electricity
Pressure, i.e. 1.2V power to conversion chip U2, make its normal work, the decompression of model AMS1117-1.2 is used in the present embodiment
Chip U3 carries out decompression and handles to obtain 1.2V power supply.
Further, the backlight interface module 10 includes first interface J1, and the input interface module 20 includes first
The 1st foot of connector A1, the first interface J1 connect the end LEDA of the first connector A1, the 2nd foot connection of first interface J1
The end LEDK1 of first connector A1, the 3rd foot of first interface J1 connect the end LEDK2 of the first connector A1, input interface module
20 provide backlight electric power signal LEDA, LEDK1 and LEDK2 to backlight interface module 10, provide phase according to different backlight designs
The constant-current supply answered, is LEDK1=LEDK2=20mA in the present embodiment, provides constant-current supply 20mA to backlight LED.
The end VDDI of the end the IOVCC connection driving chip U1 of the first connector A1, the first connector A1's
The end AVDD connects the end AVDD of driving chip U1, the end AVEE of the AVEE connection driving chip U1 of the first connector A1；Institute
The end D0N for stating the first connector A1 connects the end MRX_DN0 of the conversion chip U2, and the end D0P of the first connector A1 connects
The end MRX_DP0 of the conversion chip U2 is connect, the end D1N of the first connector A1 connects the MRX_ of the conversion chip U2
The end DN1, the end D1P of the first connector A1 connect the end MRX_DP1 of the conversion chip U2, the first connector A1's
The end D2N connects the end MRX_DN2 of the conversion chip U2, and the end D2P of the first connector A1 connects the conversion chip U2
The end MRX_DP2, the end D3N of the first connector A1 connects the end MRX_DN3 of the conversion chip U2, first connection
The end D3P of device A1 connects the end MRX_DP3 of the conversion chip U2, and the end CKN of the first connector A1 connects the conversion
The end CKP at the end MRX_CN of chip U2, the first connector A1 connects the end MRX_CP of the conversion chip U2, input interface
Module 20 connects the display equipment such as mobile phone, plate and receives power supply signal and driving signal, passes through the end IOVCC, the end AVDD and AVEE
It holds and provides power supply signal to driving chip U1, i.e. IOVCC=1.8V, AVDD=5.5V, AVEE=- 5.5V, while by 4 channel MIPI
Signal exports to conversion chip U2 and carries out channel conversion, shows that 2K liquid crystal display die set normally.
Further, also referring to Fig. 9 and Figure 10, the driving circuit of liquid crystal display die set provided by the invention it is preferred
In embodiment, to apply for smart phone shows picture, the process that control 2K liquid crystal display die set works normally includes such as
Lower step:
S100, it is powered on according to the electrifying timing sequence of LCD；
S200, channel conversion module 30 are initialized；
S300, LCD are initialized；
S400, LCD open display setting；
S500, mobile phone output 2K image data are shown by LCD.
2K liquid crystal display die set is designed first, in accordance with circuit arrangement, has been then attached to driving 4 channel liquid crystal of MIPI
Show the mobile phone of mould group, first according to the electrifying timing sequence of the requirement setting power supply IOVCC/AVDD/AVEE of LCD driving IC, such as Fig. 9 institute
Show, the initial code of conversion chip U2 is set later, works normally conversion chip U2；The drive code set of LCD is set later,
To drive LCD to show, mobile phone normally exports 2K image data later, carries out channel by conversion module and turns for setting driving IC configuration
It can be shown normal through LCD after changing.
The present invention correspondingly provides a kind of liquid crystal display die set, as is illustrated by figs. 11 and 12, shown liquid crystal display die set packet
Shell (not shown) is included, flexible circuit board 11 is provided in the shell, is provided on shown flexible circuit board 11 as above
The driving circuit of the liquid crystal display die set, wherein the back side of the input interface module 20 is provided with the first stiffening plate
111, the back side of the channel conversion module 30 is provided with the second stiffening plate 112, and the back side of the drive module 40 is provided with
Three stiffening plates 113, specific first stiffening plate 111 are FR4 stiffening plate, and the second stiffening plate 112 and third stiffening plate 113 are steel
Piece stiffening plate is solved the suppleness of flexible circuit board 11 by setting stiffening plate, improves the intensity of plugging position, facilitate production
The overall package of product.
In conclusion in liquid crystal display die set provided by the invention and its driving circuit, the drive of the liquid crystal display die set
Dynamic circuit includes backlight interface module, input interface module, channel conversion module and drive module；It is received by input interface module
Backlight electric power signal is simultaneously exported to backlight interface module, and input interface module also receives 4 channel driving signals and exports to channel
4 channel driving signals are converted to 8 channel driving signals and exported to drive module by conversion module, channel conversion module,
Drive module lights liquid crystal display die set according to 8 channel driving signals, by increasing channel conversion module for 4 channels drives
Signal is converted to 8 channel driving signals to light 2K liquid crystal display die set, assists mainboard and the interface communication of liquid crystal display die set
View is simplified, and the mobile phone liquid crystal display die set of 2K resolution ratio could be used by having broken the necessary CPU with high-end 8 channel MIPI
Limitation, allow 2K liquid crystal display die set preferably to be promoted in market；Reduce liquid crystal module incoming traffic interface pin number
Amount, while the area occupied of cell phone mainboard can be reduced, be conducive to liquid crystal display die set factory and utilize general 4 lane testing of MIPI
Frame can carry out electrical detection to product, be readily mass-produced, success save the cost.
It, can according to the technique and scheme of the present invention and its hair it is understood that for those of ordinary skills
Bright design is subject to equivalent substitution or change, and all these changes or replacement all should belong to the guarantor of appended claims of the invention
Protect range.
Claims (7)
1. a kind of driving circuit of liquid crystal display die set, which is characterized in that including backlight interface module, input interface module, lead to
Road conversion module and drive module；Backlight electric power signal is received by input interface module and is exported to backlight interface module, input
Interface module also receives 4 channel driving signals and exports to channel conversion module, and channel conversion module believes 4 channels drive
It number is converted to 8 channel driving signals and exports to drive module, drive module lights liquid crystal according to 8 channel driving signals
Show mould group；
The drive module includes driving chip, the first filter unit and voltage regulation unit, by driving chip output the first work electricity
Pressure, the second operating voltage and third operating voltage are powered to liquid crystal display, and export the first operating voltage and the second work electricity
It presses and powers to channel conversion module；It is worked by the first filter unit first operating voltage, the second operating voltage and third
Voltage is filtered；First operating voltage, the second operating voltage and third operating voltage are carried out by voltage regulation unit
Steady pressure treatment；
The channel conversion module includes conversion chip, clock unit, the second filter unit and pressure unit；It is connect by conversion chip
It receives 4 channel driving signals and is converted into 8 channel driving signals and export to drive module；Clock is exported by clock unit
Signal is to conversion chip；It is reduced to predeterminated voltage to power second operating voltage to conversion chip by pressure unit；By filtering
Wave unit is filtered the power supply of conversion chip；
The backlight interface module includes first interface, and the input interface module includes the first connector, the first interface
The 1st foot connect the end LEDA of the first connector, the 2nd foot of first interface connects the end LEDK1 of the first connector, first interface
The 3rd foot connect the first connector the end LEDK2；
The end VDDI of the end the IOVCC connection driving chip of first connector, the end AVDD of first connector, which connects, drives
The end AVDD of dynamic chip, the end AVEE of the AVEE connection driving chip of first connector；The end D0N of first connector
The end MRX_DN0 of the conversion chip is connected, the end D0P of first connector connects the end MRX_DP0 of the conversion chip,
The end D1N of first connector connects the end MRX_DN1 of the conversion chip, and the end D1P of first connector connects institute
State the end MRX_DP1 of conversion chip, the end D2N of first connector connects the end MRX_DN2 of the conversion chip, and described
The end D2P of a connector connects the end MRX_DP2 of the conversion chip, and the end D3N of first connector connects the conversion
The end MRX_DN3 of chip, the end D3P of first connector connect the end MRX_DP3 of the conversion chip, first connection
The end CKN of device connects the end MRX_CN of the conversion chip, and the end CKP of first connector connects the conversion chip
The end MRX_CP.
2. the driving circuit of liquid crystal display die set according to claim 1, which is characterized in that the driving chip
The end DSIA_D0_N, the end DSIA_D0_P, the end DSIA_D1_N, the end DSIA_D1_P, the end DSIA_D2_N, the end DSIA_D2_P, DSIA_
The end D3_N, the end DSIA_D3_P, the end DSIA_CLK_N, the end DSIA_CLK_P, the end DSIB_D0_N, the end DSIB_D0_P, DSIB_D1_
N-terminal, the end DSIB_D1_P, the end DSIB_D2_N, the end DSIB_D2_P, the end DSIB_D3_N, the end DSIB_D3_P, the end DSIB_CLK_N,
The end DSIB_CLK_P and the end IOVCC interface channel conversion module；The end VDDI, the end AVDD of the driving chip are connected with the end AVEE
Input interface module.
3. the driving circuit of liquid crystal display die set according to claim 1, which is characterized in that the first filter unit packet
Include first capacitor, the second capacitor, third capacitor, the 4th capacitor, the 5th capacitor, the 6th capacitor, the 7th capacitor, the 8th capacitor,
Nine capacitors, the tenth capacitor, the 11st capacitor, the 12nd capacitor, the 13rd capacitor, the 14th capacitor, the 15th capacitor, the 16th
Capacitor, the 17th capacitor, the 18th capacitor, the 19th capacitor, the 20th capacitor, the 21st capacitor, the 22nd capacitor,
23 capacitors, the 24th capacitor, the 25th capacitor；The voltage regulation unit includes Transient Suppression Diode, the one or two pole
Pipe, the second diode and third diode；
The end C51N of one end connection driving chip of the first capacitor, the C51P of the other end connection driving chip of first capacitor
End；The end VGLX of one end connection driving chip of second capacitor, the other end ground connection of the second capacitor；The third capacitor
One end connects the end VGL_REG of driving chip, the other end ground connection of third capacitor；One end connection driving core of 4th capacitor
The end VRGH of piece, the other end ground connection of the 4th capacitor；The end VGH of one end connection driving chip of 5th capacitor, the 5th electricity
The other end of appearance is grounded；The end C41N of one end connection driving chip of 6th capacitor, the other end of the 6th capacitor, which connects, to be driven
The end C41P of dynamic chip；The end VCL of one end connection driving chip of 7th capacitor, the other end ground connection of the 7th capacitor；Institute
State the end C32N of one end connection driving chip of the 8th capacitor, the end C32P of the other end connection driving chip of the 8th capacitor；Institute
State the end C31N of one end connection driving chip of the 9th capacitor, the end C31P of the other end connection driving chip of the 9th capacitor；Institute
State the end C11N of one end connection driving chip of the tenth capacitor, the end C11P of the other end connection driving chip of the tenth capacitor；Institute
State the end VCOM of one end connection driving chip of the 11st capacitor；The VGMN of one end connection driving chip of 12nd capacitor
End；The end AVEER of one end connection driving chip of 13rd capacitor；One end of 14th capacitor connects driving chip
The end AVEE；The end VDDA of one end connection driving chip of 15th capacitor；One end of 16th capacitor, which connects, drives
The end DVDD of dynamic chip；The end VDDI of one end connection driving chip of 17th capacitor；One end of 18th capacitor
Connect the end AVDD of driving chip；The end AVDDR of one end connection driving chip of 19th capacitor；20th capacitor
One end connection driving chip the end VGMP；The end VEQP_SD of one end connection driving chip of 21st capacitor；It is described
The end VREF of one end connection driving chip of 22nd capacitor；One end connection driving chip of 23rd capacitor
The end VEQN_SD；The end MVDDA of one end connection driving chip of 24th capacitor；One end of 25th capacitor
Connect the end MVDDI of driving chip；The other end of 11st capacitor, the other end of the 12nd capacitor, the 13rd capacitor
The other end, the other end ground connection of the 14th capacitor, the other end of the 15th capacitor, the other end of the 16th capacitor, the 17th electricity
The other end of appearance, the other end of the 18th capacitor, the other end of the 19th capacitor, the other end of the 20th capacitor, the 21st
The other end of capacitor, the other end of the 22nd capacitor, the other end of the 23rd capacitor, the other end of the 24th capacitor and
The other end of 25th capacitor is grounded；
The end VCOM of one end connection driving chip of the Transient Suppression Diode, the other end ground connection of Transient Suppression Diode；
The anode of the first diode and the second diode is all connected with the end VGLX of driving chip, and the cathode of the first diode connects
Ground, the end AVEE of the cathode connection driving chip of second diode；The anode connection driving chip of the third diode
The end AVDD, third diode cathode connection driving chip the end VGH.
4. the driving circuit of liquid crystal display die set according to claim 1, which is characterized in that the MRX_ of the conversion chip
The end DN0, the end MRX_DP0, the end MRX_DN1, the end MRX_DP1, the end MRX_DN2, the end MRX_DP2, the end MRX_DN3, the end MRX_DP3,
The end MRX_CN connects input interface module with the end MRX_CP；
The end DSIA_D0_N of the end the MTX_DN0 connection driving chip of the conversion chip, the MTX_DP0 of the conversion chip connect
The end DSIA_D0_P of driving chip is connect, the end DSIA_D1_N of the end the MTX_DN1 connection driving chip of the conversion chip is described
The end DSIA_D1_P of the MTX_DP1 connection driving chip of conversion chip, the end the MTX_DN2 connection driving core of the conversion chip
The end DSIA_D2_N of piece, the end DSIA_D2_P of the MTX_DP2 connection driving chip of the conversion chip, the conversion chip
The end MTX_DN3 connects the end DSIA_D3_N of driving chip, the DSIA_ of the MTX_DP3 connection driving chip of the conversion chip
The end D3_P, the end DSIB_D0_N of the end the MTX_DN4 connection driving chip of the conversion chip, the MTX_DP4 of the conversion chip
Connect the end DSIB_D0_P of driving chip, the end DSIB_D1_N of the end the MTX_DN5 connection driving chip of the conversion chip, institute
The end DSIB_D1_P of the MTX_DP5 connection driving chip of conversion chip is stated, the end MTX_DN6 of the conversion chip connects driving
The end DSIB_D2_N of chip, the end DSIB_D2_P of the MTX_DP6 connection driving chip of the conversion chip, the conversion chip
The end MTX_DN7 connection driving chip the end DSIB_D3_N, the DSIB_ of the MTX_DP7 connection driving chip of the conversion chip
The end D3_P, the end DSIA_CLK_N of the end the MTX_CN0 connection driving chip of the conversion chip, the MTX_ of the conversion chip
The end CP0 connects the end DSIA_CLK_P of driving chip, the DSIB_ of the end the MTX_CN1 connection driving chip of the conversion chip
The end CLK_N, the end DSIB_CLK_P of the end the MTX_CP1 connection driving chip of the conversion chip.
5. the driving circuit of liquid crystal display die set according to claim 1, which is characterized in that the clock unit includes the
26 capacitors, the 27th capacitor, first resistor and crystal oscillator；Second filter unit includes the 28th capacitor, second
19 capacitors, the 30th capacitor, the 31st capacitor, the 32nd capacitor；The pressure unit includes decompression chip and third
13 capacitors；
One end of the crystal oscillator connects the end XTAL_OUT of conversion chip and one end of first resistor, also passes through the 26th capacitor
Ground connection, the other end of the crystal oscillator connect the end XTAL_IN of conversion chip and the other end of first resistor, also pass through the 27th
Capacity earth；
The end C11N of one end connection conversion chip of 28th capacitor, the other end connection conversion core of the 28th capacitor
The end C11P of piece；The end C12N of one end connection conversion chip of 29th capacitor, the other end of the 29th capacitor connect
Connect the end C12P of conversion chip；The end VDDRAM of one end connection conversion chip of 30th capacitor, the 31st electricity
The end BGOUT of one end connection conversion chip of appearance, the end VCI_CP of one end connection conversion chip of the 32nd capacitor, institute
The other end, the other end of the 31st capacitor and the other end of the 32nd capacitor for stating the 30th capacitor are grounded；
The end AVDD of the input terminal connection driving chip of the decompression chip, the output end of the decompression chip connect conversion chip
The end VCORE, also by the 33rd capacity earth, the end the GND ground connection of the decompression chip.
6. a kind of liquid crystal display die set, including shell, flexible circuit board is provided in the shell, which is characterized in that described soft
Property circuit board on setting just like liquid crystal display die set described in claim 1-5 any one driving circuit.
7. liquid crystal display die set according to claim 6, which is characterized in that the back side of the input interface module is provided with
First stiffening plate, the back side of the channel conversion module are provided with the second stiffening plate, and the back side of the drive module is provided with
Three stiffening plates.
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| CN107240382A (en) | 2017-07-31 | 2017-10-10 | 武汉华星光电技术有限公司 | A kind of display module and the circuit unit for display device |
| CN107632394A (en) * | 2017-09-21 | 2018-01-26 | 上海闻泰电子科技有限公司 | Remove the method and device that LCD in VR shows twilight sunset |
| CN108091296A (en) * | 2018-01-17 | 2018-05-29 | 合肥惠科金扬科技有限公司 | A kind of display driver circuit, method and display device |
| CN111640399B (en) * | 2020-05-29 | 2022-11-15 | 惠州创维智显科技有限公司 | Liquid crystal display module and brightness adjusting method, equipment, test board and medium thereof |
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| CN100592377C (en) * | 2008-07-02 | 2010-02-24 | 西安交通大学 | LCD graphical display controller and control method |
| CN201788656U (en) * | 2010-02-04 | 2011-04-06 | 福建省冠林科技有限公司 | LCD screen driving plate with image storage |
| JP5591581B2 (en) * | 2010-04-23 | 2014-09-17 | ローム株式会社 | LIGHT EMITTING DEVICE, ELECTRONIC DEVICE, AND METHOD FOR DRIVING LIGHT EMITTING DIODE |
| JP5685015B2 (en) * | 2010-07-02 | 2015-03-18 | ローム株式会社 | LIGHT EMITTING DIODE DRIVING CIRCUIT AND LIGHT EMITTING DEVICE AND ELECTRONIC DEVICE USING THE SAME |
| CN204442534U (en) * | 2015-03-19 | 2015-07-01 | 武汉精测电子技术股份有限公司 | Realize multichannel MIPI synchronous transmission device |
| CN204945585U (en) * | 2015-09-11 | 2016-01-06 | 深圳市华源显示技术有限公司 | COG liquid crystal display module and LCDs |
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