CN106504691A - Panel display apparatus and its display control circuit - Google Patents
Panel display apparatus and its display control circuit Download PDFInfo
- Publication number
- CN106504691A CN106504691A CN201611239177.2A CN201611239177A CN106504691A CN 106504691 A CN106504691 A CN 106504691A CN 201611239177 A CN201611239177 A CN 201611239177A CN 106504691 A CN106504691 A CN 106504691A
- Authority
- CN
- China
- Prior art keywords
- main control
- resistance
- chip
- electric capacity
- module
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
-
- 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
- Y02B20/40—Control techniques providing energy savings, e.g. smart controller or presence detection
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
- Liquid Crystal Display Device Control (AREA)
Abstract
The invention belongs to technical field of flat panel display, more particularly to a kind of panel display apparatus and its display control circuit.In the present invention, by adopting the display control circuit of the panel display apparatus for including main control module and backlight drive module, first outfan of main control module connects the input of display screen, second outfan of main control module connects the input of backlight drive module, the outfan connection backlight module of backlight drive module；Main control module exports Low Voltage Differential Signal to display screen, and the video data for receiving is processed to drive display screen to show, and export backlight drive control signal, control backlight drive module is controlled to the luminance of backlight module according to backlight drive control signal, realize under the requirement that backlight drive is controlled panel display apparatus are met, circuit structure is simplified, production cost is reduced.
Description
Technical field
The invention belongs to technical field of flat panel display, more particularly to a kind of panel display apparatus and its display control circuit.
Background technology
In recent years, as image quality is remarkable, lightweight, thickness of thin and low in energy consumption such the characteristics of, panel display apparatus
Just it is widely used as display device.Panel display apparatus include liquid crystal display, organic light emitting diode display etc.,
Major part in them is just carrying out commercial exploitation.
At present, the technical side mainly combined with display screen drive chip using main control chip by the panel display apparatus on market
Case, however, backlight drive function in such scheme, is not had, so prior art is also needed to using main control chip and display
Increase backlight drive circuit on the basis of screen driving chip, panel display apparatus are realized with backlight drive control is wanted to meet
Ask, so as to cause, the circuit structure in panel display apparatus is complicated and manufacturing cost increases, therefore, prior art has circuit knot
The complex and high cost problem of structure.
Content of the invention
It is an object of the invention to provide a kind of panel display apparatus and its display control circuit, it is intended to solve prior art
Insurmountable display circuit connection is complicated, the problem that production cost is high.
The present invention is achieved in that a kind of display control circuit of panel display apparatus, in panel display apparatus
Display screen and backlight module connection；Display control circuit includes main control module and backlight drive module, and the first of main control module is defeated
Go out the input of end connection display screen, the second outfan of main control module connects the input of backlight drive module, backlight drive
The outfan connection backlight module of module.
Main control module includes that a main control chip, main control module are used for exporting Low Voltage Differential Signal to display screen, and to receiving
To video data processed to drive display screen to be shown, and export backlight drive control signal.
Backlight drive module includes that a backlight driving chip, backlight drive module are used for according to backlight drive control signal pair
The luminance of backlight module is controlled.
Another object of the present invention also resides in a kind of panel display apparatus of offer, including display screen and backlight module, flat board
Display device also includes a kind of display control circuit of above-mentioned panel display apparatus.
In the present invention, include the display control of the panel display apparatus of main control module and backlight drive module by employing
Circuit, the first outfan of main control module connect the input of display screen, the second outfan connection backlight drive of main control module
The input of module, the outfan connection backlight module of backlight drive module；Main control module output Low Voltage Differential Signal is to display
Screen, and the video data for receiving is processed to drive display screen to show, and backlight drive control signal is exported, control
Backlight drive module processed is controlled to the luminance of backlight module according to backlight drive control signal, is meeting flat pannel display dress
Put realize backlight drive control requirement under, simplify circuit structure, reduce production cost, so as to solve in prior art
Circuit structure complexity and the high problem of production cost in panel display apparatus.
Description of the drawings
Fig. 1 is the function structure chart of the display control circuit provided by the embodiment of the present invention；
Fig. 2 is another function structure chart of the display control circuit provided by the embodiment of the present invention；
Fig. 3 is the internal module structure chart of the main control module shown in Fig. 2；
Fig. 4 is the internal circuit configuration figure of the main control module shown in Fig. 3.
Specific embodiment
In order that the objects, technical solutions and advantages of the present invention become more apparent, below in conjunction with drawings and Examples, right
The present invention is further elaborated.It should be appreciated that specific embodiment described herein is only in order to explain the present invention, and
It is not used in the restriction present invention.
Embodiments provide a kind of panel display apparatus and its display control circuit, wherein, panel display apparatus
Including display screen, backlight module and the above-mentioned display control circuit commonly used.
In embodiments of the present invention, by panel display apparatus using including main control module and backlight drive module
Display control circuit, by main control module output Low Voltage Differential Signal to display screen, and is processed to the video data for receiving
To drive display screen to be shown, and export backlight drive control signal control luminous shape of the backlight drive module to backlight module
State is controlled, and while the requirement that panel display apparatus realize backlight drive control is met, simplifies circuit structure, reduces
Production cost.
Fig. 1 shows the modular structure of above-mentioned display control circuit, for convenience of description, illustrate only and present invention enforcement
The related part of example, details are as follows：
Display control circuit 2 is arranged on a circuit board, and with panel display apparatus 1 in display screen 3 and backlight module 4
Connection；Wherein, display screen 3 is used for display image, and backlight module 4 is used for providing backlight for display screen 3.
Display control circuit 2 includes that main control module 10 and backlight drive module 20, the first outfan of main control module 10 connect
Connect the input of display screen 3, the input of the second outfan connection backlight drive module 20 of main control module 10, backlight drive mould
The outfan connection backlight module 4 of block 20.
Main control module 10 includes that a main control chip 100, main control module 10 are used for exporting Low Voltage Differential Signal to display screen 3,
And the video data for receiving is processed to drive display screen 3 to show, and export backlight drive control signal.
Backlight drive module 20 includes that a backlight driving chip 200, backlight drive module 20 are used for according to backlight drive control
Signal processed is controlled to the luminance of backlight module 4.
Specifically, backlight drive module 20 includes the backlight drive control with backlight drive control chip 200 as core
Circuit and Boost circuit.
Above-mentioned backlight drive control circuit operationally, LED voltage value can reach a numerical range (concrete numerical value according to
Need to adjust), to drive LED-backlit lamp bar to light；When backlight drive control circuit does not work, LED voltage value is maintained at another
One numerical value, the electric current for flowing through LED-backlit lamp bar will not make LED-backlit lamp bar light, so as to play the work of protection LED-backlit lamp bar
With.
PWM dimming control units in backlight drive control circuit receive the dimming control pulse that backlight driving chip sends
Signal, makes the pulse-width signal exported by PWM dimming control units by the dutycycle for adjusting dimming control pulse signal
Dutycycle is adjusted accordingly, further to adjust LED voltage, so as to change the electric current in LED-backlit lamp bar, controls lamp
Bar luminous intensity.
Backlight drive control circuit drives electricity by the overvoltage crowbar inside backlight driving chip in the LED of output
In the case that pressure exceedes setting value, overvoltage protection is realized.
Boost circuit is a kind of conventional switch DC booster circuit, and it can make output voltage compare input voltage
High.
Fig. 2 shows another modular structure of above-mentioned display control circuit 2, for convenience of description, illustrate only and this
The related part of bright embodiment, details are as follows：
Display control circuit 2 also includes：Supply module 30, the 4th of the outfan connection main control module 10 of supply module 30 the
Input；Supply module 30 is used for powering for main control module 10.
Supply module 30 includes：Analog voltage power supply circuits 300 and digital voltage feed circuit 301.
The outfan of analog voltage power supply circuits 300 connects the analog power pin AVDD of main control chip 100, digital voltage
The outfan of power supply circuits 301 connects the digital power output pin VDDP of main control chip 100.
Fig. 3 shows the internal module structure of above-mentioned main control module 10, for convenience of description, illustrate only and implements with invention
The related part of example, details are as follows：
Main control module 10 includes：Main control chip 100, serial flash unit 101, key control unit 102, reset unit
103 and oscillating unit 104.
First input end of the first input end of main control chip 100 for main control module 10, the first output of main control chip 100
The first outfan for main control module 10 is held, the second outfan of main control chip 100 is the second outfan of main control module 10, main
Threeth outfan of 3rd outfan of control chip 100 for main control module 10, the 4th input of main control chip 100 is master control mould
4th input of block 10.
The CE pin SCZ of the first input end connection main control chip 100 of serial flash unit 101, clock pins
SCK and data-out pin SDI, the second input of serial flash unit 101 connect the first pulsewidth modulation of main control chip 100
Output pin PWM2/GPIO_P24, the outfan of serial flash unit 101 connect the data output pins of main control chip 100
SDO, the input/output terminal of key control unit 102 connect the first analog/digital switched pins GPIO_P00/ of main control chip 100
SAR1, the second analog/digital switched pins GPIO_P00/SAR2, the second non-inverting input pin GPIO_P07 and the 3rd pulsewidth
Modulation output pin GPIO_P06, the outfan of reset unit 103 connect the reset pin RST of main control chip 100, oscillating unit
104 input connects the crystal oscillator input pin XIN of main control chip 100, the outfan connection main control chip of oscillating unit 104
100 crystal oscillator output pin XOUT.
Main control chip 100 is used for exporting Low Voltage Differential Signal to display screen 3, and the video data for receiving is processed
To drive display screen 3 to be shown, and export backlight drive control signal.
Serial flash unit 101 is used for the operation program for storing main control chip 100.
Key control unit 102 be used for according to receive button operation to main control chip 100 send corresponding by keying
Signal processed, so that main control chip 100 carries out corresponding display control according to button control signal to display screen 3.
Reset unit 103 is used for output reset signal in upper electricity or reseting procedure makes main control chip 100 reset.
Oscillating unit 104 is used for providing clock oscillation signal to main control chip 100.
Fig. 4 shows the internal circuit configuration of above-mentioned main control module 10, for convenience of description, illustrate only and the present embodiment
Related part, details are as follows：
Serial flash unit 101 includes：Serial flash chip U7, electric capacity C47 and resistance R52.
The data output pins SO of serial flash chip U7 connects the data output pins SDO of main control chip 100, and serial is dodged
Deposit chip U7 CE pin CS# connect main control chip 100 CE pin SCZ, serial flash chip U7 when
Clock pin SCK connects the clock pins SCK of main control chip 100, the chip data input pin SI connections of serial flash chip U7
The data-out pin SDI of main control chip 100；Power pins VCC of serial flash chip U7, the power supply of serial flash chip U7
Pin suspends the first end of reset pin HOLD# and electric capacity C47 and is connected to first voltage source+3.3V altogether (its output voltage can be
3.3V), the second end ground connection of electric capacity C47, the write protection pin WP# of serial flash chip U7, the first arteries and veins of main control chip 100
The first end of wide modulation output pin PWM2/GPIO_P24 and resistance R52 is connected, the grounding pin of serial flash chip U7
Second end of GND and resistance R52 is connected to ground altogether.
Key control unit 102 includes：Resistance R48, resistance R49, resistance R53, resistance R54, resistance R64, resistance R65,
Resistance R66, resistance R67, electric capacity C51, electric capacity C52, electric capacity C53, electric capacity C54, audion Q7, audion Q8 and keypad CN4.
The first end of electric capacity C51 connects the first end 1 of keypad CN4, the first end connection keypad CN4's of electric capacity C52
Second end 2, the first end of electric capacity C53 connect the 3rd end 3 of keypad CN4, the first end connection keypad CN4's of electric capacity C54
4th end 4, second end of electric capacity C51, second end of electric capacity C52, second end of electric capacity C53, second end of electric capacity C54 and button
5th end 5 of plate CN4 is connected to ground altogether, and the first end of resistance R64 is connected the second arteries and veins of main control chip 100 with the base stage of audion Q7
Wide modulation output pin GPIO_P07, second end of resistance R64 is connected to the second voltage source VCC5V altogether with the emitter stage of audion Q7
(its output voltage can be 5V), the colelctor electrode of audion Q7 connect the first end of resistance R65, the second end connection of resistance R65
4th end 4 of keypad CN4, the first end of resistance R66 are connected the 3rd pulsewidth of main control chip 100 and are adjusted with the base stage of audion Q8
Second end of output pin GPIO_P06 processed, resistance R66 is connected to the second voltage source (second voltage altogether with the emitter stage of audion Q8
The voltage in source can be VCC5V), the colelctor electrode of audion Q8 connects the first end of resistance R67, the second end connection of resistance R67
3rd end 3 of keypad CN4, the first end 1 of keypad CN4 connect the first analog/digital switched pins of main control chip 100
Second end 2 of GPIO_P00/SAR1, keypad CN4 connects the second analog/digital switched pins GPIO_ of main control chip 100
P00/SAR2.
Reset unit 103 includes：Resistance R45, resistance R46, electric capacity C43 and electric capacity C46.
First end connection the second voltage source VCC5V (its output voltage can be 5V) of electric capacity C43, the second of electric capacity C43
End be connected with the first end of the first end, the first end of electric capacity C46 and resistance R45 of resistance R46, second end of resistance R46 and
Second end of electric capacity C46 is connected to ground altogether, and second end of resistance R45 connects the reset pin RST of main control chip 100.
Oscillating unit 104 includes：Resistance R58, electric capacity C48, electric capacity C49 and crystal oscillator X1.
The first end of the first end of resistance R58, the first end of crystal oscillator X1 and electric capacity C48 is connected to the crystalline substance of main control chip 100 altogether
Shake input pin XIN, and the first end at second end of resistance R58, second end of crystal oscillator X1 and electric capacity C49 is connected to main control chip altogether
100 crystal oscillator output pin XOUT, second end at second end of electric capacity C48, the 3rd end of crystal oscillator X1 and electric capacity C49 is connected to altogether
Ground.
In embodiments of the present invention, by panel display apparatus using including main control module 10 and backlight drive module
20 display control circuit 2, the input of the first outfan connection display screen 3 of main control module 10, the second of main control module 10
The input of outfan connection backlight drive module 20, the outfan connection backlight module 4 of backlight drive module 20；Main control module
10 output Low Voltage Differential Signals are to display screen 3, and the video data for receiving is processed to drive display screen 3 to show
Show, and export backlight drive control signal, control backlight drive module 20 according to backlight drive control signal sending out to backlight module 4
Light state is controlled, and while the requirement that panel display apparatus 1 realize backlight drive control is met, simplifies circuit knot
Structure, reduces production cost.
The above, the only specific embodiment of the present invention, but protection scope of the present invention is not limited thereto, any
Those familiar with the art the invention discloses technical scope in, various equivalent modifications can be readily occurred in or replaced
Change, these modifications or replacement should all be included within the scope of the present invention.Therefore, protection scope of the present invention should be with right
The protection domain of requirement is defined.
Claims (9)
1. a kind of display control circuit of panel display apparatus, is arranged on a circuit board, and with the panel display apparatus in
Display screen and backlight module connection；Characterized in that, the display control circuit includes main control module and backlight drive module,
First outfan of the main control module connects the input of the display screen, the second outfan connection institute of the main control module
The input of backlight drive module is stated, the outfan of the backlight drive module connects the backlight module；
The main control module includes that a main control chip, the main control module are used for exporting Low Voltage Differential Signal to the display screen,
And the video data for receiving is processed to drive the display screen to show, and export backlight drive control signal；
The backlight drive module includes that a backlight driving chip, the backlight drive module are used for according to the backlight drive control
Signal processed is controlled to the luminance of the backlight module.
2. display control circuit as claimed in claim 1, it is characterised in that also include：Supply module；
The outfan of the supply module connects the 4th input of the main control module；The supply module is used for being the master
Control module for power supply.
3. display control circuit as claimed in claim 2, it is characterised in that the supply module includes：
Analog voltage power supply circuits and digital voltage feed circuit；
The outfan of the analog voltage power supply circuits connects the analog power interface of the main control chip, and the digital voltage is supplied
The outfan of circuit connects the digital power output interface of the main control chip.
4. display control circuit as claimed in claim 1, it is characterised in that the main control module includes：Main control chip, serial
Flash cell, key control unit, reset unit and oscillating unit；
The first input end of the main control chip is the first input end of the main control module, and the first of the main control chip exports
The first outfan for the main control module is held, the second outfan of the main control chip is the second output of the main control module
End, the 3rd outfan of the main control chip is the 3rd outfan of the main control module, the 4th input of the main control chip
Hold the 4th input for the main control module；
The first input end of the serial flash unit connects data-out pin, clock pins and the chip of the main control chip
Strobe pin, the second input of the serial flash unit connect the first non-inverting input pin of the main control chip,
The outfan of the serial flash unit connects the data output pins of the main control chip, the input of the key control unit
First analog/digital switched pins of the outfan connection main control chip, the second analog/digital switched pins, the second pulsewidth are adjusted
Output pin processed and the 3rd non-inverting input pin, the outfan of the reset unit connect the reset of the main control chip and draw
Foot, the input of the oscillating unit connect the crystal oscillator input pin of the main control chip, and the outfan of the oscillating unit connects
Connect the crystal oscillator output pin of the main control chip；
The main control chip is used for exporting Low Voltage Differential Signal to the display screen, and the video data for receiving is processed
To drive the display screen to be shown, and export backlight drive control signal；
The serial flash unit is used for the operation program for storing the main control chip；
The key control unit be used for according to receive button operation to the main control chip send corresponding by key control
Signal, so that the main control chip carries out corresponding display control according to the button control signal to the display screen；
The reset unit is used for output reset signal in upper electricity or reseting procedure makes the main control chip reset；
The oscillating unit is used for providing clock oscillation signal to the main control chip.
5. display control circuit as claimed in claim 4, it is characterised in that the serial flash unit includes：
Serial flash chip U7, electric capacity C47 and resistance R52；
The data output pins of the serial flash chip U7 connect the data output pins of the main control chip, and the serial is dodged
The CE pin for depositing chip U7 connects the CE pin of the main control chip, the clock of the serial flash chip U7
Pin connects the clock pins of the main control chip, and the chip data input pin of the serial flash chip U7 connects the master
The data-out pin of control chip；The power pins of the serial flash chip U7, the power supply of the serial flash chip U7 draw
Foot suspends reset pin and the first end of the electric capacity C47 is connected to first voltage source altogether, and second end of the electric capacity C47 is grounded,
The write protection pin of the serial flash chip U7, the first non-inverting input pin of the main control chip and the resistance
The first end of R52 is connected, and the grounding pin of the serial flash chip U7 is connected to ground altogether with second end of the resistance R52.
6. display control circuit as claimed in claim 4, it is characterised in that the key control unit includes：
Resistance R48, resistance R49, resistance R53, resistance R54, resistance R64, resistance R65, resistance R66, resistance R67, electric capacity C51,
Electric capacity C52, electric capacity C53, electric capacity C54, audion Q7, audion Q8 and keypad CN4；
The first end of the electric capacity C51 connects the first end of the keypad CN4, and the first end connection of the electric capacity C52 is described
Second end of keypad CN4, the first end of the electric capacity C53 connect the 3rd end of the keypad CN4, the electric capacity C54's
First end connects the 4th end of the keypad CN4, second end of the electric capacity C51, second end of the electric capacity C52, described
5th end at second end of electric capacity C53, second end of the electric capacity C54 and the keypad CN4 is connected to ground, the resistance altogether
The first end of R64 is connected the second non-inverting input pin of the main control chip, the electricity with the base stage of the audion Q7
Second end of resistance R64 is connected to the second voltage source, the colelctor electrode connection of the audion Q7 altogether with the emitter stage of the audion Q7
The first end of the resistance R65, second end of the resistance R65 connect the 4th end of the keypad CN4, the resistance R66
First end be connected the 3rd non-inverting input pin of the main control chip, the resistance with the base stage of the audion Q8
Second end of R66 is connected to the second voltage source, the colelctor electrode connection institute of the audion Q8 altogether with the emitter stage of the audion Q8
The first end of resistance R67 is stated, second end of the resistance R67 connects the 3rd end of the keypad CN4, the keypad CN4
First end connect the first analog/digital switched pins of the main control chip, the second end connection of the keypad CN4 is described
Second analog/digital switched pins of main control chip.
7. display control circuit as claimed in claim 4, it is characterised in that the reset unit includes：
Resistance R45, resistance R46, electric capacity C43 and electric capacity C46；
The first end connection the second voltage source of the electric capacity C43, second end of the electric capacity C43 and the first of the resistance R46
End, the first end of the first end of the electric capacity C46 and the resistance R45 are connected, second end of the resistance R46 and the electricity
The second end for holding C46 is connected to ground altogether, and second end of the resistance R45 connects the reset pin of the main control chip.
8. display control circuit as claimed in claim 4, it is characterised in that the oscillating unit includes：
Resistance R58, electric capacity C48, electric capacity C49 and crystal oscillator X1；
The first end of the first end of the resistance R58, the first end of the crystal oscillator X1 and the electric capacity C48 is connected to the master control altogether
The crystal oscillator input pin of chip, the first end at second end of the R58, second end of the crystal oscillator X1 and the electric capacity C49 is altogether
It is connected to the crystal oscillator output pin of the main control chip, second end of the electric capacity C48, the 3rd end of the crystal oscillator X1 and the electricity
The second end for holding C49 is connected to ground altogether.
9. a kind of panel display apparatus, including display screen and backlight module, it is characterised in that the panel display apparatus also include
Display control circuit described in any one of claim 1 to 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611239177.2A CN106504691B (en) | 2016-12-28 | 2016-12-28 | Flat panel display device and display control circuit thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611239177.2A CN106504691B (en) | 2016-12-28 | 2016-12-28 | Flat panel display device and display control circuit thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106504691A true CN106504691A (en) | 2017-03-15 |
| CN106504691B CN106504691B (en) | 2023-05-16 |
Family
ID=58334516
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611239177.2A Active CN106504691B (en) | 2016-12-28 | 2016-12-28 | Flat panel display device and display control circuit thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106504691B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107205310A (en) * | 2017-06-29 | 2017-09-26 | 惠科股份有限公司 | Circuit board and display device |
| CN110021276A (en) * | 2019-05-10 | 2019-07-16 | 合肥惠科金扬科技有限公司 | A kind of backlight drive circuit and backlight drive device |
| CN114143735A (en) * | 2021-11-25 | 2022-03-04 | 凡己科技(苏州）有限公司 | Display terminal and transport vechicle based on thing networking |
| CN115691405A (en) * | 2022-11-16 | 2023-02-03 | 盐城市益维光电科技有限公司 | Adjusting circuit for LED display screen |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050248552A1 (en) * | 2004-05-10 | 2005-11-10 | Joyce Yu | Calculator with a color changing display |
| CN102024400A (en) * | 2009-09-22 | 2011-04-20 | 华映视讯（吴江）有限公司 | Display device and backlight control method |
| US20140252984A1 (en) * | 2013-03-07 | 2014-09-11 | Shenzhen Chiina Star Optoelectronics Technology Co Ltd. | Led backlight driving circuit, lcd device, and driving circuit |
| CN104537998A (en) * | 2015-01-06 | 2015-04-22 | 友达光电股份有限公司 | Control circuit and method used for liquid crystal display device |
| CN105047144A (en) * | 2015-09-08 | 2015-11-11 | 武汉华星光电技术有限公司 | Liquid crystal display device and backlight control method thereof |
| CN205104207U (en) * | 2015-10-09 | 2016-03-23 | 惠科电子（深圳）有限公司 | Voltage current regulation circuit is shaded |
| CN206412066U (en) * | 2016-12-28 | 2017-08-15 | 合肥惠科金扬科技有限公司 | Panel display apparatus and its display control circuit |
-
2016
- 2016-12-28 CN CN201611239177.2A patent/CN106504691B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050248552A1 (en) * | 2004-05-10 | 2005-11-10 | Joyce Yu | Calculator with a color changing display |
| CN102024400A (en) * | 2009-09-22 | 2011-04-20 | 华映视讯（吴江）有限公司 | Display device and backlight control method |
| US20140252984A1 (en) * | 2013-03-07 | 2014-09-11 | Shenzhen Chiina Star Optoelectronics Technology Co Ltd. | Led backlight driving circuit, lcd device, and driving circuit |
| CN104537998A (en) * | 2015-01-06 | 2015-04-22 | 友达光电股份有限公司 | Control circuit and method used for liquid crystal display device |
| CN105047144A (en) * | 2015-09-08 | 2015-11-11 | 武汉华星光电技术有限公司 | Liquid crystal display device and backlight control method thereof |
| CN205104207U (en) * | 2015-10-09 | 2016-03-23 | 惠科电子（深圳）有限公司 | Voltage current regulation circuit is shaded |
| CN206412066U (en) * | 2016-12-28 | 2017-08-15 | 合肥惠科金扬科技有限公司 | Panel display apparatus and its display control circuit |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107205310A (en) * | 2017-06-29 | 2017-09-26 | 惠科股份有限公司 | Circuit board and display device |
| CN107205310B (en) * | 2017-06-29 | 2019-12-24 | 惠科股份有限公司 | Circuit board and display device |
| US10980111B2 (en) | 2017-06-29 | 2021-04-13 | HKC Corporation Limited | Circuit board and display device |
| CN110021276A (en) * | 2019-05-10 | 2019-07-16 | 合肥惠科金扬科技有限公司 | A kind of backlight drive circuit and backlight drive device |
| CN110021276B (en) * | 2019-05-10 | 2024-03-29 | 重庆惠科金扬科技有限公司 | Backlight driving circuit and backlight driving device |
| CN114143735A (en) * | 2021-11-25 | 2022-03-04 | 凡己科技(苏州）有限公司 | Display terminal and transport vechicle based on thing networking |
| CN115691405A (en) * | 2022-11-16 | 2023-02-03 | 盐城市益维光电科技有限公司 | Adjusting circuit for LED display screen |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106504691B (en) | 2023-05-16 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106504691A (en) | Panel display apparatus and its display control circuit | |
| TWI404310B (en) | Power management and control module and liquid crystal display device | |
| CN105976756B (en) | Power supply chip and display device | |
| WO2014146308A1 (en) | Backlight drive board and liquid crystal display | |
| CN110531564B (en) | Flash lamp drive circuit and intelligent terminal | |
| CN103871370A (en) | Light emitting diode backlight system and driving device and driving method thereof | |
| CN206412066U (en) | Panel display apparatus and its display control circuit | |
| CN105592605B (en) | A kind of LED load driving circuit | |
| CN107508339B (en) | A kind of charging circuit and mobile terminal | |
| CN207167764U (en) | Power supply drive module, electric supply installation and electronic cigarette | |
| WO2014153791A1 (en) | Led backlight drive circuit and liquid crystal display device | |
| WO2020052077A1 (en) | Oled light source driving control circuit and oled lamp | |
| CN214099114U (en) | Constant-current backlight control circuit, television and television system | |
| CN110896574A (en) | OLED light source drive control circuit and OLED lamp | |
| CN100334613C (en) | Drive chip for electroluminescent cold-light lens | |
| CN102568385A (en) | Driving device, LED (light emitting diode) driving device and driving methods thereof | |
| CN207737194U (en) | Vehicle-mounted light adjusting controller | |
| CN209084648U (en) | A kind of unmanned plane night flight lamp | |
| CN219248116U (en) | General type adjustable dimming module | |
| CN207425325U (en) | A kind of double backlight control circuits of LED and double backlight LED matrixs | |
| CN221961998U (en) | Light supplementing system and interaction device | |
| CN215265533U (en) | LED backlight driving control circuit | |
| CN218603352U (en) | Voltage conversion circuit | |
| CN107018598B (en) | It is a kind of that address, group, scene and the DALI light modulators for dimming parameter are set | |
| CN101400205A (en) | Light source driving device and control method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |