CN109584817A - The LCD liquid crystal display die set of display is kept after a kind of power down - Google Patents
The LCD liquid crystal display die set of display is kept after a kind of power down Download PDFInfo
- Publication number
- CN109584817A CN109584817A CN201811363803.8A CN201811363803A CN109584817A CN 109584817 A CN109584817 A CN 109584817A CN 201811363803 A CN201811363803 A CN 201811363803A CN 109584817 A CN109584817 A CN 109584817A
- Authority
- CN
- China
- Prior art keywords
- power down
- display
- chip
- liquid crystal
- lcd
- 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.)
- Pending
Links
- 239000004973 liquid crystal related substance Substances 0.000 title claims abstract description 26
- 239000002184 metal Substances 0.000 claims abstract description 4
- 239000003990 capacitor Substances 0.000 claims description 11
- 230000005611 electricity Effects 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 3
- 238000013500 data storage Methods 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000009514 concussion Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
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
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Liquid Crystal Display Device Control (AREA)
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
Abstract
The invention discloses the LCD liquid crystal display die sets that display is kept after a kind of power down; including LCD display, LED backlight and power down protection drive circuit board; the LED backlight is placed in LCD display medial surface; power down protection drive circuit board is installed on the lower end surface of LED backlight and LCD display; the power down protection drive circuit board is connect with the pin that LED backlight is led to, and is weldingly connected between the power down protection drive circuit board and LCD display by the metal pin on LCD and is formed a complete LCD liquid crystal display die set.Liquid crystal display die set of the present invention can keep display current picture data after system power supply power down, realize the effect that data storage protection is shown after power down, it is therefore prevented that show the function of loss of data.It is widely used in the instrument and meter for having uninterrupted display to require.
Description
Technical field
The present invention relates to a kind of liquid crystal display die set, the LCD liquid crystal display die set of display is kept after specifically a kind of power down.
Background technique
Liquid crystal display die set is simply exactly to shield+back light unit.The display unit of LCD TV is exactly liquid crystal module,
Its status is equivalent to the kinescope in CRT.Other parts include power circuit, signal processing circuit etc..
Principal display device of the liquid crystal display die set as display number, fixed text, character etc., be widely used in industry,
The numerous areas such as civilian, communal facility.Display data are wherein required not interrupt on special installation, display data are not lost.And mesh
Preceding common liquid crystals display module lacks this function, and current display data can be lost after system is powered down, can not continue to show.
Summary of the invention
The purpose of the present invention is to provide the LCD liquid crystal display die sets that display is kept after a kind of power down, to solve above-mentioned back
The problem of being proposed in scape technology.
To achieve the above object, the invention provides the following technical scheme:
The LCD liquid crystal display die set of display, including LCD display, LED backlight and power down protection are kept after a kind of power down
Drive circuit board, the LED backlight are placed in LCD display medial surface, and power down protection drive circuit board is installed on LED backlight
Pin on the lower end surface in source and LCD display, the power down protection drive circuit board and backlight is welded to connect.The power down
It is weldingly connected between protection drive circuit board and LCD display by the metal pin on LCD and forms a complete LCD liquid crystal
Display module.
As a preferred solution of the present invention: the power down protection drive circuit board includes chip U1, chip U2 and chip U3,
The input terminal of chip U1 connects resistance R1, the output end of the other end connection chip U1 of resistance R1 and the input terminal of chip U2,
The input terminal of output end connection the resistance R2 and chip U3 of chip U2, the output end of chip U3 connect COM signal, and resistance R2's is another
One end connects capacitor C1, the other end ground connection of capacitor C1.
As a preferred solution of the present invention: power down protection drive circuit board further includes DAT signal adapter, CLK level turn
Parallel operation and FRM signal adapter.
As a preferred solution of the present invention: the chip U1, chip U2 and chip U3 are phase inverter.
As a preferred solution of the present invention: the capacitor C1 is farad capacitor.
As a preferred solution of the present invention: the LED backlight is using the luminous SMT SMD lamp in two sides.
Compared with prior art, the beneficial effects of the present invention are: liquid crystal display die set of the present invention can be fallen in system power supply
Display current picture data are kept after electricity, realize the effect for show data storage protection after power down, it is therefore prevented that show that data are lost
The function of mistake.It is widely used in the instrument and meter for having uninterrupted display to require.
Detailed description of the invention
Fig. 1 is configuration schematic diagram of the invention.
Fig. 2 is power down protection drive circuit board circuit diagram of the invention.
In figure: 1-LCD display screen, 2-LED backlight, 3- power down protection drive circuit board.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Referring to Fig. 1, embodiment 1: in the embodiment of the present invention, the LCD liquid crystal display die set of display is kept after a kind of power down,
Including LCD display 1, LED backlight 2 and power down protection drive circuit board 3, the LED backlight 2 is placed in LCD display 1
Medial surface, power down protection drive circuit board 3 are installed on the lower end surface of LED backlight 2 and LCD display 1, and the power down protection drives
Dynamic circuit board 3 is connect with LED backlight 2 by pin, is passed through between the power down protection drive circuit board 3 and LCD display 1
Metal pin on LCD, which is weldingly connected, forms a complete LCD liquid crystal display die set.Power down protection drive circuit board is the hair
It include a DAT signal adapter, CLK level translator, FRM signal on power down protection drive circuit board where bright core
Converter, COM signal generator and the power down protection modular circuit being made of farad capacitor.The COM generator is provided with
One to six pin, the DAT signal adapter are provided with the 8th pin, and the CLK level translator is provided with the 7th pin,
FRM signal adapter is provided with the 9th pin, forms COM signal generator and ALT signal by chip U1, chip U2, chip U3
Generator.System electrification, C1 farad capacitor store charge, by inside chip U1 power on level by internal logic reverse phase it is defeated
Out, through resistance R1 the first and second pin of loop input, thus generate circulation output concussion, output again through chip U2 third and fourth
Pin input inversion shaping generates rectangular wave and does ALT signal.ALT signal inputs the five, the six pins of chip U3, by chip U3
Logical inversion generates the COM signal opposite and synchronous with ALT signal.After system is powered down, C1 farad capacitor discharges charge to chip
U1, chip U2, chip U3, COM signal generator maintain exporting for COM signal to drive display picture to LCD.Power down protection mould
CLK, DAT, FRM signal that block circuit board is provided using MCU chip input to level translator chip U4, chip U5, core respectively
Piece U6 provides the storage of display data signal after power down for LCD driving circuit.
Embodiment 2: on the basis of embodiment 1, the LED backlight 2 of the design is using the luminous SMT SMD lamp in two sides, no
It is only small in size, and integrated level is high, and packaging effect is good, is suitable as the light source of the design.
It is obvious to a person skilled in the art that invention is not limited to the details of the above exemplary embodiments, Er Qie
In the case where without departing substantially from spirit or essential attributes of the invention, the present invention can be realized in other specific forms.Therefore, no matter
From the point of view of which point, the present embodiments are to be considered as illustrative and not restrictive, and the scope of the present invention is by appended power
Benefit requires rather than above description limits, it is intended that all by what is fallen within the meaning and scope of the equivalent elements of the claims
Variation is included within the present invention.Any reference signs in the claims should not be construed as limiting the involved claims.
In addition, it should be understood that although this specification is described in terms of embodiments, but not each embodiment is only wrapped
Containing an independent technical solution, this description of the specification is merely for the sake of clarity, and those skilled in the art should
It considers the specification as a whole, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art
The other embodiments being understood that.
Claims (8)
1. keeping the LCD liquid crystal display die set of display, including LCD display (1), LED backlight (2) and power down after a kind of power down
It protects drive circuit board (3), which is characterized in that the LED backlight (2) is placed in LCD display (1) medial surface, and power down is protected
Shield drive circuit board (3) is installed on the lower end surface of LED backlight (2) and LCD display (1).
2. keeping the LCD liquid crystal display die set of display after a kind of power down according to claim 1, which is characterized in that described
Power down protection drive circuit board (3) is connect with LED backlight (2) by pin.
3. keeping the LCD liquid crystal display die set of display after a kind of power down according to claim 1, which is characterized in that described
Between power down protection drive circuit board (3) and LCD display (1) by the metal pin on LCD be weldingly connected composition one it is complete
Whole LCD liquid crystal display die set.
4. keeping the LCD liquid crystal display die set of display after a kind of power down according to claim 1, which is characterized in that described
Power down protection drive circuit board (3) includes chip U1, chip U2 and chip U3, and the input terminal of chip U1 connects resistance R1, electricity
Hinder the output end of the other end connection chip U1 of R1 and the input terminal of chip U2, the output end connection resistance R2 and chip of chip U2
The input terminal of U3, the output end of chip U3 connect COM signal, and the other end of resistance R2 connects capacitor C1, the other end of capacitor C1
Ground connection.
5. keeping the LCD liquid crystal display die set of display after a kind of power down according to claim 2, which is characterized in that described
Power down protection drive circuit board (3) further includes DAT signal adapter, CLK level translator and FRM signal adapter.
6. keeping the LCD liquid crystal display die set of display after a kind of power down according to claim 3, which is characterized in that described
Chip U1, chip U2 and chip U3 are phase inverter.
7. keeping the LCD liquid crystal display die set of display after a kind of power down according to claim 3, which is characterized in that described
Capacitor C1 is farad capacitor.
8. keeping the LCD liquid crystal display die set of display after a kind of -6 any power down according to claim 1, feature exists
In the LED backlight (2) is using the luminous SMT SMD lamp in two sides.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811363803.8A CN109584817A (en) | 2018-11-16 | 2018-11-16 | The LCD liquid crystal display die set of display is kept after a kind of power down |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811363803.8A CN109584817A (en) | 2018-11-16 | 2018-11-16 | The LCD liquid crystal display die set of display is kept after a kind of power down |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109584817A true CN109584817A (en) | 2019-04-05 |
Family
ID=65922762
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811363803.8A Pending CN109584817A (en) | 2018-11-16 | 2018-11-16 | The LCD liquid crystal display die set of display is kept after a kind of power down |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109584817A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113205766A (en) * | 2021-04-01 | 2021-08-03 | 深圳市时代华影科技股份有限公司 | LED display screen, data display control method and screen system |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1334552A (en) * | 2000-07-13 | 2002-02-06 | 伦飞电脑实业股份有限公司 | Power interruption protector for LCD monitor |
| CN102323684A (en) * | 2011-09-10 | 2012-01-18 | 鞍山亚世光电显示有限公司 | Wide-angle SMT (surface mounted technology) liquid crystal display module |
| CN204360060U (en) * | 2015-01-20 | 2015-05-27 | 亚世光电股份有限公司 | A kind of super low-power consumption wide viewing angle COG liquid crystal display module |
| CN106097998A (en) * | 2016-06-15 | 2016-11-09 | 苏州众显电子科技有限公司 | A kind of power interruption protector for LCD monitor |
| CN206975997U (en) * | 2017-06-22 | 2018-02-06 | 亚世光电股份有限公司 | A kind of TFT LCDs with signal delay circuit |
-
2018
- 2018-11-16 CN CN201811363803.8A patent/CN109584817A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1334552A (en) * | 2000-07-13 | 2002-02-06 | 伦飞电脑实业股份有限公司 | Power interruption protector for LCD monitor |
| CN102323684A (en) * | 2011-09-10 | 2012-01-18 | 鞍山亚世光电显示有限公司 | Wide-angle SMT (surface mounted technology) liquid crystal display module |
| CN204360060U (en) * | 2015-01-20 | 2015-05-27 | 亚世光电股份有限公司 | A kind of super low-power consumption wide viewing angle COG liquid crystal display module |
| CN106097998A (en) * | 2016-06-15 | 2016-11-09 | 苏州众显电子科技有限公司 | A kind of power interruption protector for LCD monitor |
| CN206975997U (en) * | 2017-06-22 | 2018-02-06 | 亚世光电股份有限公司 | A kind of TFT LCDs with signal delay circuit |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113205766A (en) * | 2021-04-01 | 2021-08-03 | 深圳市时代华影科技股份有限公司 | LED display screen, data display control method and screen system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101777386B (en) | Shift register circuit | |
| JPH11305254A (en) | Liquid crystal display device | |
| KR20140028885A (en) | Liquid crystal display device and method for driving the same | |
| CN109584817A (en) | The LCD liquid crystal display die set of display is kept after a kind of power down | |
| CN101916553B (en) | Color LCOS (Liquid Crystal on Silicon) display chip and drive control method thereof | |
| CN208954614U (en) | The LCD liquid crystal display die set of display is kept after a kind of power down | |
| CN207097428U (en) | A kind of liquid crystal SECO plate of multi signal input | |
| CN210431637U (en) | Device for realizing double-screen different display function | |
| CN102280087A (en) | Singlechip microcomputer for electronic paper display | |
| CN205194301U (en) | LCM drives liquid crystal display systems | |
| CN110767182B (en) | Screen display control system and screen display control method | |
| CN209562406U (en) | Dual channel source manager | |
| CN205176428U (en) | Novel static drive LCD liquid crystal display module of multistage number | |
| CN102014539A (en) | Backlight control circuit | |
| CN207572049U (en) | A kind of LCM liquid crystal display die sets | |
| CN205038422U (en) | Electric energy meter COG LCD screen | |
| CN219085409U (en) | External display device for display card | |
| CN211236770U (en) | Domestic intelligent terminal based on MCU integrated GPU | |
| CN218675764U (en) | Full duplex communication control protocol OIS data acquisition control panel | |
| CN213904896U (en) | LED receiving card crystal oscillator application circuit and device | |
| CN201637966U (en) | Liquid-crystal display module | |
| CN216212275U (en) | Liquid crystal display driving circuit and liquid crystal display module | |
| CN102231259A (en) | SCM (Single Chip Microcomputer) system for OLED (Organic Light Emitting Diode) display | |
| CN202976786U (en) | Dot-matrix LCD (liquid crystal display) drive integrated circuit | |
| CN102855836A (en) | segmented display device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190405 |