CN109215597A - A kind of display driver circuit and television set - Google Patents
A kind of display driver circuit and television set Download PDFInfo
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- CN109215597A CN109215597A CN201811190847.5A CN201811190847A CN109215597A CN 109215597 A CN109215597 A CN 109215597A CN 201811190847 A CN201811190847 A CN 201811190847A CN 109215597 A CN109215597 A CN 109215597A
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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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- 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
- G09G3/3406—Control of illumination source
- G09G3/3413—Details of control of colour illumination sources
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/63—Generation or supply of power specially adapted for television receivers
Abstract
A kind of display driver circuit, comprising: input-output interface module, decoding chip, backlight module, lamp imitates control module and power module, it is controlled by adding backlight module reception and controlling at least one of signal according to pwm control signal and DC to display screen output back facet current, backlight module is enabled to support PWM light modulation and DC light modulation simultaneously, shutdown back facet current output can be controlled within the set time, to the backlight response time of one width dynamic menu of control, and then dynamic fuzzy picture is turned off to obtain the dynamic menu of high-resolution, shown by adding lamp and imitating control module and receive and control full-color bright show slinkingly of atmosphere lamp according to instruction control signal, display result is fed back to decoding chip simultaneously, display driver circuit secretly controls the bright of full-color atmosphere lamp, to enhance display effect, it improves User's visual experience satisfaction enables the display driver circuit to be written and read USB flash disk, mobile hard disk etc. in addition, being also additionally arranged usb interface module.
Description
Technical field
The invention belongs to television set control technology field more particularly to a kind of display driver circuits and television set.
Background technique
Currently, liquid crystal display industry development is quick, high-resolution liquid crystal display is increasingly becoming a kind of trend, therefore,
What people were generally concerned with is how to improve in the resolution ratio of liquid crystal display；However, the backlight module in display driver circuit is only
Carry out PWM light modulation that can be single or DC light modulation, and PWM light modulation and DC light modulation cannot be supported simultaneously, and can not be in setting time
Interior control shutdown back facet current output, to not can control the backlight response time of a width dynamic menu of display screen, and then not
Dynamic fuzzy picture can be turned off；In addition, display driver circuit also can not secretly control the bright of full-color atmosphere lamp, user is caused
Visual experience is ineffective.
Therefore, the presence of display driver circuit present in traditional technical solution cannot turn off dynamic fuzzy picture and can not
Control the bright dark problem of full-color atmosphere lamp.
Summary of the invention
The present invention provides a kind of display driver circuit and television set, it is intended to solve display present in traditional technical solution
Driving circuit there is a problem of cannot turning off dynamic fuzzy picture and to be unable to control full-color atmosphere lamp bright dark.
The invention is realized in this way a kind of display driver circuit, comprising:
Input-output interface module, the input-output interface module are connect with external equipment, are used for from the outside
Equipment input data signal and to the external equipment outputting data signals；
Decoding chip, the decoding chip is connect with the input-output interface module, for handling the digital signal
To export backlight control signal and instruction control signal；
Backlight module, the backlight module are connected between the decoding chip and display screen, for receiving and by described
Backlight control signal control, to export back facet current to the display screen；Wherein, the backlight control signal includes PWM control
Signal and DC control signal, and the backlight module is also used to receive and controlled in signal by the pwm control signal and the DC
At least one control, to export back facet current to the display screen to control the backlight response time of a width dynamic menu；
Lamp imitates control module, and the lamp effect control module is connected between the decoding chip and full-color atmosphere lamp, is used for
It receives and signal control bright show slinkingly of full-color atmosphere lamp is controlled according to the instruction and show, while is aobvious to decoding chip feedback
Show result；And
Power module, the power module respectively with the input-output interface module, the backlight module, the lamp
Control module and decoding chip connection are imitated, for powering.
In addition, a kind of television set is additionally provided, including above-mentioned display driver circuit.
Above-mentioned display driver circuit is received and by adding backlight module according to pwm control signal and DC control signal
At least one of control to display screen export back facet current, enable backlight module support simultaneously PWM light modulation and DC light modulation, can
Control shutdown back facet current output within the set time, thus the backlight response time of one width dynamic menu of control, and then turn off
Dynamic fuzzy picture is to obtain the dynamic menu of high-resolution；It receives and is controlled according to instruction in addition, being also additionally arranged lamp effect control module
Signal processed controls full-color bright show slinkingly of atmosphere lamp and shows, while to decoding chip feeding back display as a result, enabling display driver circuit
The bright of full-color atmosphere lamp is secretly controlled, to enhance display effect, improves user's visual experience satisfaction.
Detailed description of the invention
Fig. 1 is the module diagram for the display driver circuit that one embodiment of the invention provides；
Fig. 2 be another embodiment of the present invention provides display driver circuit module diagram；
Fig. 3 is the circuit diagram for the backlight module that one embodiment of the invention provides；
Fig. 4 be another embodiment of the present invention provides lamp imitate control module circuit diagram.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, with reference to the accompanying drawings and embodiments, right
The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and
It is not used in the restriction present invention.
Fig. 1 shows the module diagram of the display driver circuit of present pre-ferred embodiments offer, for ease of description,
Only the parts related to this embodiment are shown, and details are as follows:
With reference to Fig. 1, display driver circuit includes: input-output interface module 20, decoding chip 10, backlight module 30, lamp
Imitate control module 40 and power module 50.
Wherein, input-output interface module 20 is connect with external equipment, for from external equipment input data signal and to
External equipment outputting data signals；Decoding chip 10 is connect with input-output interface module 20, for handling digital signal with defeated
Backlight control signal and instruction control signal out；Backlight module 30 is connected between decoding chip 10 and display screen, for receiving
And controlled by backlight control signal, to export back facet current to display screen；Wherein, backlight control signal includes pwm control signal
Signal is controlled with DC, backlight module 30 is also used to receive and is controlled the control of at least one of signal by pwm control signal and DC, with
Back facet current is exported to display screen to control the backlight response time of a width dynamic menu；Lamp effect control module 40 is connected to decoding
Between chip 10 and full-color atmosphere lamp, show for receiving and controlling full-color bright show slinkingly of atmosphere lamp according to instruction control signal, simultaneously
Display result is fed back to decoding chip 10；Power module 50 is imitated with input-output interface module 20, backlight module 30, lamp respectively
Control module 40 and decoding chip 10 connect, for powering.In the particular embodiment, input-output interface module 20 is wrapped
Include high-definition digital display interface, high-definition multimedia interface, keyboard interface, mouse interface, audio input-output interface and
Horn interface.Decoding chip 10 is the chip of model MST9U25Q1.
As above-mentioned, input-output interface module 20 is used to export from external equipment input data signal and to external equipment
Data-signal, decoding chip 10 carry out signal processing to data-signal to export pwm control signal and DC control to backlight module 30
At least one of signal processed, to the lamp effect output instruction control signal of control module 40, so that backlight module 30 receives and basis
At least one of pwm control signal and DC control signal are controlled to display screen output back facet current to control a width dynamic menu
The backlight response time and turn off dynamic fuzzy picture so that lamp effect control module 40 receives and complete according to instruction control signal control
Bright show slinkingly of color atmosphere lamp is shown and feeds back display result to decoding chip 10.
In the present embodiment, by adding the reception of backlight module 30 and being controlled in signal extremely according to pwm control signal and DC
A kind of few control to display screen exports back facet current, and backlight module 30 is enabled to support PWM light modulation and DC light modulation simultaneously, can be
Control shutdown back facet current output in setting time, thus the backlight response time of one width dynamic menu of control, and then turn off dynamic
Morphotype pastes picture to obtain the dynamic menu of high-resolution；It receives and is controlled according to instruction in addition, being also additionally arranged lamp effect control module 40
Signal processed controls full-color bright show slinkingly of atmosphere lamp and shows, while to decoding chip 10 feeding back display as a result, enabling display driver circuit
It is enough that the bright of full-color atmosphere lamp is secretly controlled, to enhance display effect, improve user's visual experience satisfaction.
Fig. 3 is referred in one of the embodiments, and backlight module 30 includes: the first filter unit 305, boosting unit
301, current detecting unit 302, voltage detection unit 303 and backlight chip 304.Wherein, the first filter unit 305 and power supply
The power output end of module 50 connects, for being filtered to output voltage；Boosting unit 301 and the first filter unit
305 connections carry out voltage transformation for the output voltage after being filtered；Current detecting unit 302 and boosting unit 301 connect
It connects, for detecting the output electric current and output overcurrent detection signal of boosting unit 301；Voltage detection unit 303 and boosting unit
301 connections, for detecting the output voltage and output overvoltage detection signal of boosting unit 301；Backlight chip 304 respectively with decoding
Chip 10, boosting unit 301, current detecting unit 302, voltage detection unit 303 and display screen connection, for receive and by
It is single that at least one of pwm control signal, DC control signal, over-current detection signal and over-voltage detection signal control to adjust boosting
The back facet current of 301 output of member.The backlight module 30 of the present embodiment setting can support PWM light modulation and DC light modulation simultaneously, can be
Control shutdown back facet current output in setting time, thus the backlight response time of one width dynamic menu of control, and then turn off dynamic
Morphotype pastes picture to obtain the dynamic menu of high-resolution.
Fig. 3 is referred in one of the embodiments, and boosting unit 301 includes: the first inductance L1, the second inductance L2, first
Voltage-stabiliser tube ZD1, the first magnetic bead FB1 and first switch tube Q1；The second end of the first end of first inductance L1 and the second inductance L2
It is connect altogether as 301 input terminal of boosting unit and is connect with the output end of the first filter unit 305, the second end of the first inductance L1,
The output end of the second end of second inductance L2, the first end of the first magnetic bead FB1 and first switch tube Q1 connects altogether, first switch tube
The control terminal of Q1 as boosting unit 301 control terminal and connect with the switch control signal pin GATE of backlight chip 304,
The input terminal of one switching tube Q1 is connect with current detecting unit 302, and the second end of the first magnetic bead FB1 is with the first voltage-stabiliser tube ZD1's
Anode connection, the cathode of the first voltage-stabiliser tube ZD1 as boosting unit 301 output end and be connected to display screen.Specific real
It applies in example, first switch tube Q1 can be NMOS tube, the control of the grid, source electrode and drain electrode difference first switch tube Q1 of NMOS tube
End, input terminal and output end processed；First switch tube Q1 can also be PMOS tube, grid, source electrode and the drain electrode point of PMOS tube
Control terminal, output end and the input terminal of other first switch tube Q1.
In one of the embodiments, refer to Fig. 3, current detecting unit 302 include: first resistor R1, second resistance R2,
3rd resistor R3 and the 4th resistance R4；Wherein, the first end of first resistor R1, the first end of second resistance R2,3rd resistor
The first end of R3 and the first end of the 4th resistance R4 connect the output end and and backlight chip as current detecting unit 302 altogether
304 over-current detection pin CS connection, the second end of second resistance R2, the second end of 3rd resistor R3 and the 4th resistance R4
Second end is connected to ground altogether, and the second end of first resistor R1 is connect with the control terminal of boosting unit 301.
Fig. 3 is referred in one of the embodiments, and voltage detection unit 303 includes: the 5th resistance R5 and the 6th resistance
The first end of R6, the 5th resistance R5 as voltage detection unit 303 input terminal and connect with the output end of boosting unit 301,
The second end of 5th resistance R5 and the first end of the 6th resistance R6 connect the output end and and backlight as voltage detection unit 303 altogether
The over-voltage of chip 304 detects pin OVP connection, and the second end of the 6th resistance R6 is connected to ground.
Fig. 3 is referred in one of the embodiments, and the first filter unit 305 includes the electricity of the 17th capacitor C17 and the 18th
Hold C18, the first end of the 17th capacitor C17 and the first end of the 18th capacitor C18 are connected to ground altogether, and the of the 17th capacitor C17
The second end of two ends and the 18th capacitor C18 connect the input terminal and output end for constituting the first filter unit 305 altogether.
Fig. 3 is referred in one of the embodiments, backlight chip 304 is the chip of model OB3365C_ETSSOP16,
Wherein, OB3365C_ETSSOP16 chip includes that backlight makes to can control pin ENA, over-current detection pin CS, over-voltage detection pin
OVP, switch control signal pin GATE, pwm control signal input pin PWM, DC control signal input pin ADIM, chip work
Make power pins VIN, lower margin GND, the first back facet current output pin LED1, the second back facet current output pin LED2, third
Back facet current output pin LED3 and the 4th back facet current output pin LED4.
Fig. 3 is referred in one of the embodiments, and backlight module 30 further includes the second filter unit 306, second filtering
Unit 306 is connected between boosting unit 301 and display screen, is filtered for the output voltage to boosting unit 301.
In one of the embodiments, refer to Fig. 3, the second filter unit 306 include first capacitor C1, the second capacitor C2,
Third capacitor C3, the 4th capacitor C4, the 5th capacitor C5 and the 6th capacitor C6；Wherein, the first end of first capacitor C1, the second electricity
First end, the first end of third capacitor C3 and the first end of the 4th capacitor C4 for holding C2 are connected to ground altogether, and the of third capacitor C3
Two ends, the second end of the 4th capacitor C4, the first end of the 5th capacitor C5 and the first end of the 6th capacitor C6 connect altogether, first capacitor
The second end of C1, the second end of the second capacitor C2, the second end of the 5th capacitor C5 and the second end of the 6th capacitor C6 connect structure altogether
At the input terminal and output end of the second filter unit 306.
Fig. 3 is referred in one of the embodiments, and backlight module 30 further includes the first current limiting unit 307, first current limliting
Unit 307 is for current limliting processing.In the particular embodiment, the first current limiting unit 307 includes the 7th resistance R7, the 7th resistance
The first end of R7 is connect with the output end of the first filter unit 305, the second end and chip operation power supply pin of the 7th resistance R7
VIN connection.
Fig. 3 is referred in one of the embodiments, and backlight module 30 further includes third filter unit 308, third filtering
Unit 308 is connected between backlight chip 304 and voltage detection unit 303, for being filtered to over-voltage detection signal.
In the particular embodiment, which includes the 7th capacitor C7, and the first end of the 7th capacitor C7 is as third
The input terminal of filter unit 308 is simultaneously connect with the output end of voltage detection unit 303, and the second end of the 7th capacitor C7 is as
The output end of three filter units 308 is simultaneously connect with the over-voltage of backlight chip 304 detection pin OVP.The present embodiment passes through setting the
Three filter units 308 can make the testing result of voltage detection unit 303 more accurate.
Fig. 4 is referred in one of the embodiments, and it includes: the 23rd resistance R23, the 20th that lamp, which imitates control module 40,
Four resistance R24, the 25th resistance R25, the 26th resistance R26, the 27th resistance R27, the 28th resistance R28 and
Main control chip；Wherein, the 23rd resistance R23 is connected to the instruction control signal output pin and main control chip of decoding chip 10
Instruction control signal input pin P0.5 between, the 24th resistance R24 be connected to decoding chip 10 instruction control signal
Between the instruction control signal output pin P0.4 of feedback pin and main control chip, the 25th resistance R25 is connected to decoding core
Between the level output pin of piece 10 and the level input pin P0.1 of main control chip, the first end of the 26th resistance R26 with
First instruction control pin P0.2 connection of main control chip, the second end of the 26th resistance R26 is with the 28th resistance R28's
First end is connected to full-color atmosphere lamp, the first end of the 27th resistance R27 and the second instruction control pin of main control chip altogether
P0.3 connection, the second end of the 27th resistance R27 and the second end of the 28th resistance R28 are connected to full-color atmosphere lamp altogether.This
The lamp effect control module 40 of embodiment setting, which receives and controls full-color bright show slinkingly of atmosphere lamp according to instruction control signal, to be shown, while to
The feedback display of decoding chip 10 is as a result, enable display driver circuit secretly to control the bright of full-color atmosphere lamp, to increase
Strong display effect, improves user's visual experience satisfaction.
Main control chip is the chip of model HC89F003 in one of the embodiments,.
Fig. 2 is referred in one of the embodiments, and display driver circuit further includes usb interface module 60, the USB interface
Module 60 is connect with decoding chip 10, for connecting USB device.The present embodiment, not only can be with by setting usb interface module 60
Common input equipment (keyboard, mouse) is accessed, USB flash disk, mobile hard disk etc. can also be accessed, keep the display driver circuit right
USB flash disk, mobile hard disk etc. are written and read.
In addition, a kind of television set is additionally provided, including above-mentioned display driver circuit.
Beneficial effects of the present invention:
(1) backlight module is added to receive and controlled according at least one of pwm control signal and DC control signal to display
Screen output back facet current, enables backlight module to support PWM light modulation and DC light modulation simultaneously, can control shutdown within the set time
Back facet current output, thus the backlight response time of one width dynamic menu of control, and then dynamic fuzzy picture is turned off to obtain height
Clearly dynamic menu.
(2) it adds lamp effect control module and receives and full-color bright show slinkingly of atmosphere lamp is controlled according to instruction control signal and show, simultaneously
To decoding chip feedback display as a result, enabling display driver circuit secretly to control the bright of full-color atmosphere lamp, to increase
Strong display effect, improves user's visual experience satisfaction.
(3) usb interface module is added, common input equipment (keyboard, mouse) can be not only accessed, U can also be accessed
Disk, mobile hard disk etc. enable the display driver circuit to be written and read USB flash disk, mobile hard disk etc..
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Made any modifications, equivalent replacements, and improvements etc., should all be included in the protection scope of the present invention within mind and principle.
Claims (10)
1. a kind of display driver circuit, which is characterized in that the display driver circuit includes:
Input-output interface module, the input-output interface module are connect with external equipment, are used for from the external equipment
Input data signal and to the external equipment outputting data signals；
Decoding chip, the decoding chip are connect with the input-output interface module, for handling the digital signal with defeated
Backlight control signal and instruction control signal out；
Backlight module, the backlight module are connected between the decoding chip and display screen, for receiving and by the backlight
Signal control is controlled, to export back facet current to the display screen；Wherein, the backlight control signal includes pwm control signal
Signal is controlled with DC, the backlight module is also used to receive and controlled in signal at least by the pwm control signal and the DC
A kind of control, to export back facet current to the display screen to control the backlight response time of a width dynamic menu；
Lamp imitates control module, and the lamp effect control module is connected between the decoding chip and full-color atmosphere lamp, for receiving
And signal control bright show slinkingly of full-color atmosphere lamp is controlled according to the instruction and is shown, while feeding back display knot to the decoding chip
Fruit；And
Power module, the power module are controlled with the input-output interface module, the backlight module, lamp effect respectively
Molding block and decoding chip connection, for powering.
2. display driver circuit as described in claim 1, which is characterized in that the backlight module includes:
The power output end of first filter unit, first filter unit and power module connects, for output voltage into
Row filtering processing；
Boosting unit, the boosting unit are connect with first filter unit, for the output voltage after being filtered
Carry out voltage transformation；
Current detecting unit, the current detecting unit are connect with the boosting unit, for detecting the defeated of the boosting unit
Electric current and output overcurrent detection signal out；
Voltage detection unit, the voltage detection unit are connect with the boosting unit, for detecting the defeated of the boosting unit
Voltage and output overvoltage detection signal out；And
Backlight chip, the backlight chip respectively with the decoding chip, the boosting unit, the current detecting unit, institute
State voltage detection unit and the display screen connection, for receive and by the pwm control signal, the DC controlled signal,
At least one of the over-current detection signal and over-voltage detection signal control to adjust the institute of the boosting unit output
State back facet current.
3. display driver circuit as claimed in claim 2, which is characterized in that the boosting unit includes: the first inductance, second
Inductance, the first voltage-stabiliser tube, the first magnetic bead and first switch tube；
The first end of first inductance and the second end of second inductance connect altogether as the boosting unit input terminal and with
The output end of first filter unit connects, the second end of first inductance, the second end of second inductance, described the
The output end of the first end of one magnetic bead and the first switch tube connects altogether, and the control terminal of the first switch tube is as the liter
Press unit control terminal simultaneously connect with the switch control signal pin of the backlight chip, the input terminal of the first switch tube and
The current detecting unit connection, the second end of first magnetic bead are connect with the anode of first voltage-stabiliser tube, and described first
The cathode of voltage-stabiliser tube as the boosting unit output end and be connected to the display screen.
4. display driver circuit as claimed in claim 2, which is characterized in that the current detecting unit include: first resistor,
Second resistance, 3rd resistor and the 4th resistance；
The first end of the first resistor, the first end of the second resistance, the first end of the 3rd resistor and described
The first end of four resistance connect altogether as the current detecting unit output end and with the over-current detection pin of the backlight chip
Connection, the second end of the second end of the second resistance, the second end of the 3rd resistor and the 4th resistance are connected to altogether
Ground, the second end of the first resistor are connect with the control terminal of the boosting unit.
5. display driver circuit as claimed in claim 2, which is characterized in that the voltage detection unit includes: the 5th resistance
With the 6th resistance, the first end of the 5th resistance as the voltage detection unit input terminal and with the boosting unit
Output end connection, the second end of the 5th resistance and the first end of the 6th resistance are connect altogether as the voltage detection unit
Output end and with the over-voltage of the backlight chip detection pin connect, the second end of the 6th resistance is connected to ground.
6. display driver circuit as claimed in claim 2, which is characterized in that the backlight module further include:
Second filter unit, second filter unit are connected between the boosting unit and the display screen, for institute
The output voltage for stating boosting unit is filtered.
7. display driver circuit as described in claim 1, which is characterized in that the lamp effect control module includes: the 23rd
Resistance, the 24th resistance, the 25th resistance, the 26th resistance, the 27th resistance, the 28th resistance and master control
Chip；
23rd resistance be connected to the decoding chip instruction control signal output pin and the main control chip
Between instruction control signal input pin, the 24th resistance is connected to the instruction control signal feedback of the decoding chip
Between the instruction control signal output pin of pin and the main control chip, the 25th resistance is connected to the decoding core
Between the level output pin of piece and the level input pin of the main control chip, the first end of the 26th resistance and institute
State the first instruction control pin connection of main control chip, second end and the 28th resistance of the 26th resistance
First end is connected to the full-color atmosphere lamp altogether, and the first end of the 27th resistance and the second instruction of the main control chip are controlled
Pin connection processed, the second end of the 27th resistance and the second end of the 28th resistance are connected to the full-color atmosphere altogether
Enclose lamp.
8. display driver circuit as claimed in claim 7, which is characterized in that the main control chip is model HC89F003's
Chip.
9. display driver circuit as claimed in any one of claims 1 to 8, which is characterized in that the display driver circuit also wraps
It includes:
Usb interface module, the usb interface module is connect with the decoding chip, for connecting USB device.
10. a kind of television set, which is characterized in that including the described in any item display driver circuits of claim 1 to 9.
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| CN201811190847.5A CN109215597B (en) | 2018-10-12 | 2018-10-12 | Display driving circuit and television |
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| CN201811190847.5A CN109215597B (en) | 2018-10-12 | 2018-10-12 | Display driving circuit and television |
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| CN109639161A (en) * | 2019-02-21 | 2019-04-16 | 合肥惠科金扬科技有限公司 | Voltage conversion circuit and display device |
| CN109658878A (en) * | 2019-03-04 | 2019-04-19 | 合肥惠科金扬科技有限公司 | The backlight drive circuit and display device of display panel |
| CN110010088A (en) * | 2019-05-20 | 2019-07-12 | 京东方科技集团股份有限公司 | Transparence display mould group and transparent display |
| CN112397034A (en) * | 2020-11-02 | 2021-02-23 | 深圳市创维群欣安防科技股份有限公司 | Dimming control circuit and display device |
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| CN109658878A (en) * | 2019-03-04 | 2019-04-19 | 合肥惠科金扬科技有限公司 | The backlight drive circuit and display device of display panel |
| CN109658878B (en) * | 2019-03-04 | 2024-01-09 | 重庆惠科金扬科技有限公司 | Backlight driving circuit of display panel and display device |
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| CN112397034A (en) * | 2020-11-02 | 2021-02-23 | 深圳市创维群欣安防科技股份有限公司 | Dimming control circuit and display device |
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|---|---|
| CN109215597B (en) | 2021-04-20 |
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