CN102236186A - Field sequential multicolor liquid crystal display (LCD) module - Google Patents
Field sequential multicolor liquid crystal display (LCD) module Download PDFInfo
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- CN102236186A CN102236186A CN2010101536624A CN201010153662A CN102236186A CN 102236186 A CN102236186 A CN 102236186A CN 2010101536624 A CN2010101536624 A CN 2010101536624A CN 201010153662 A CN201010153662 A CN 201010153662A CN 102236186 A CN102236186 A CN 102236186A
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Abstract
The invention relates to a field sequential multicolor liquid crystal display (LCD) module. The display device comprises a frame, an LCD screen, a temperature compensation driver, a red, green and blue (RGB) backlight, a backlight source driver and a micro control unit (MCU), wherein the output end of the MCU is connected with the temperature compensation driver and the backlight source driver simultaneously; the temperature compensation driver and the backlight source driver are connected with the LCD screen and the RGB backlight respectively; the LCD screen is arranged on the front end face of the frame; a control button is connected below the LCD screen; the temperature compensation driver, the RGB backlight, the backlight source driver and the MCU are arranged on a printed circuit board; and the printed circuit board is arranged on the rear end face of the frame. The LCD module has the advantages of low energy consumption, high brightness, wide viewing angle, high contrast and the like, and is easy to control; and a gorgeous picture can be displayed without a color film filter prepared by a complicated process.
Description
Technical field
The present invention relates to a kind of LCD module, the colorful LCD module of particularly a kind of low-cost low energy consumption.
Background technology
People are when seeing dynamic picture, can be understood as the continuous variation of different still frames, eyes can feel for 18 frame/seconds, and above picture is smooth dynamic menu, 18 frame/seconds, following dynamic menu will feel not smooth, at ordinary times the picture of the film of being seen 24 frame/seconds just, felt very smooth.The refreshing frequency of also can saying so the 24 frame/seconds here, refreshing frequency refers to the ignition frequency of same point on the screen; Allow a width of cloth static images be shown in and do not think at the moment and flash, will constantly refresh this width of cloth picture so.
The still image that people see from LCD and can not feel to have the refreshing frequency of flashing (varying with each individual) generally more than 70Hz.Refresh in promptly 1 second 70 times.1s=1000ms, 1000ms/70=14.28ms, this is the time of refreshing a static images.Understand backlight for hardware is relevant, fixed-frequency promptly backlight.Can be regarded as photoswitch because LCD drives, is backlight three times so it gives the low-limit frequency of signal.Frequency and time relation formula: f=1/T, that is: 14.28ms/3=4.76ms.Just the demonstration time of every kind of color has only 4.76ms, so the response time of liquid crystal must be faster than this time.
The field colorful liquid crystal display module of preface (FSC LCM, Field Sequential Color LCM) is realized colorful liquid crystal display in conjunction with a preface scanning technique on the conventional liquid crystal technical foundation.This display innovation ground is applied to field preface scanning technique of New LED backlight in the passive matrix LCD driven, does not adopt optical filter and realizes colorful demonstration, so be a kind of low cost, the green display of low energy consumption.
The colorful liquid crystal display module of preface is is mainly researched and developed the exploitation that content comprises the field preface scanning technique of the research and development of the monochromatic LCD of response fast and LED three look backlights.The former technology is based on the industry basis of traditional TN-LCD and STN-LCD, designs novel liquid crystal display pattern, uses the liquid crystal material of response fast and designs the response time of the thin box of 3-5 micron with the raising LCD.Latter's technology is to adopt novel three-color LED backlight, design is fit to the field preface sweep frequency of displaying contents, the backlight source module of research and development field preface scanning realizes colored the demonstration, and Chuan Xin design simultaneously temperature-compensation circuit cheaply also realizes and has the integrated of temperature compensation drive IC.
The exploitation of the colorful liquid crystal display module of field preface, organically combine a monochromatic LCD technology and a preface LED-backlit scanning technique, need not polaroid, realize colored the demonstration cheaply, not only can realize the colorful demonstration of single mode group, can also realize the colorful demonstration of giant-screen by splicing, have application fields.Simultaneously domestic have a domestic industry basis with huge liquid crystal display device and associated materials, and the proposition of this technology to promoting traditional passive matrix liquid crystal technique for displaying level, expands that it is should the field significant.
Summary of the invention
The present invention seeks to provide a kind of: can be under lower temperature conditions the normal monochromatic colorful LCD module of the gorgeous picture of display color still.
The present invention seeks to realize like this: this display includes that framework, LCDs, temperature compensation driver, RGB are backlight, backlight driver and control MCU, the output terminal of control MCU is connected with backlight driver with the temperature compensation driver simultaneously, and the temperature compensation driver is connected with RGB is backlight with LCDs respectively with backlight driver; LCDs is installed in the framework front end face, is connected with control knob below LCDs; Temperature compensation driver, RGB are backlight, backlight driver and control MCU are installed on the printed-wiring board (PWB), and printed-wiring board (PWB) is installed in the rear end face of framework.
Described temperature-compensation circuit and driving circuit have drive integrated circult, 1 pin of drive integrated circult is connected with 25 pin, 2 pin are connected with 24 pin, 3 pin are connected with 23 pin, and 4 pin and 22 pin are the GND end, and 5 pin, 6 pin and 21 pin connect positive supply, 7 pin all are connected with compensating resistance with 19 pin, connect two compensating resistances on each pin, compensating resistance LCD-J1 is connected with GND with compensating resistance LCD-J3, and compensating resistance LCD-J2 is connected with positive supply with compensating resistance LCD-J4; Compensating resistance LCD-R0, compensating resistance LCD-R1, compensating resistance LCD-R2, compensating resistance LCD-R3 and building-out capacitor LCD-C1 are connected between positive supply and the GND, be connected with 1 pin of drive integrated circult between compensating resistance LCD-R0 and the compensating resistance LCD-R1, connect building-out capacitor LCD-C2 simultaneously; Be connected with 2 pin of drive integrated circult between compensating resistance LCD-R1 and the compensating resistance LCD-R2, connect building-out capacitor LCD-C3 simultaneously; Be connected with 3 pin of drive integrated circult between compensating resistance LCD-R2 and the compensating resistance LCD-R3, connect building-out capacitor LCD-C4 simultaneously; After being connected, the other end of building-out capacitor LCD-C2, building-out capacitor LCD-C3 and building-out capacitor LCD-C4 meets GND.
Described backlight drive circuit has three groups of identical drivers, this driver has two triodes, an input triode is connected with input end by input resistance with base stage, the grounded emitter of input triode, collector is connected with the base stage of output triode by current-limiting resistance, between the emitter of output triode and base stage, be connected with inclined to one side resistance down, emitter also is connected with two two divider resistances simultaneously, each divider resistance all is connected with positive supply, the collector of output triode is connected with two output resistances simultaneously, and the other end of two output resistances is respectively independently output terminal.
Beneficial effect is to utilize synthesize white light backlight (background color) owing to adopted such scheme, ultimate principle, LCD is a photoswitch, and is backlight in the process that circulation is lighted, and open certain light highlights respective color, color by and backlight between time arrange in pairs or groups and realize, realize monochromatic colorful demonstration; Adopt compensating resistance and building-out capacitor, in control MCU, mate by the value that the software setting temperature raises or reduction needs to improve contrast.The normal gorgeous picture of display color still under lower temperature conditions has reached the purpose of patent of the present invention.
Advantage: low energy consumption, control easily, high briliancy, wide visual angle, high-contrast etc.Do not need the numerous and diverse color filter film of technology just can show gorgeous picture.
Description of drawings
Fig. 1, be that preface Multicolored LCD module of the present invention is formed block scheme.
Fig. 2, LCD module figure.
Fig. 3, be the side view of Fig. 2.
Fig. 4, be RGB of the present invention synoptic diagram backlight.
Fig. 5, be the side view of Fig. 4.
Fig. 6, be temperature-compensation circuit of the present invention and driving circuit.
Fig. 7, be backlight drive circuit figure of the present invention.
Embodiment:
Embodiment 1: this display module includes that framework, LCDs, temperature compensation driver, RGB are backlight, backlight driver and control MCU, the output terminal of control MCU is connected with backlight driver with the temperature compensation driver simultaneously, and the temperature compensation driver is connected with RGB is backlight with LCDs respectively with backlight driver; LCDs 1-1 is installed in framework 1-2 front end face, is connected with control knob 1-6 below LCDs; Temperature compensation driver 1-5, RGB 1-7 backlight, backlight driver and control MCU 1-4 are installed on the printed-wiring board (PWB) 1-3, and printed-wiring board (PWB) 1-3 is installed in the rear end face of framework 1-2.
Described temperature-compensation circuit and driving circuit have drive integrated circult, 1 pin of drive integrated circult is connected with 25 pin, 2 pin are connected with 24 pin, 3 pin are connected with 23 pin, and 4 pin and 22 pin are the GND end, and 5 pin, 6 pin and 21 pin connect positive supply, 7 pin all are connected with compensating resistance with 19 pin, connect two compensating resistances on each pin, compensating resistance LCD-J1 is connected with GND with compensating resistance LCD-J3, and compensating resistance LCD-J2 is connected with positive supply with compensating resistance LCD-J4; Compensating resistance LCD-R0, compensating resistance LCD-R1, compensating resistance LCD-R2, compensating resistance LCD-R3 and building-out capacitor LCD-C1 are connected between positive supply and the GND, be connected with 1 pin of drive integrated circult between compensating resistance LCD-R0 and the compensating resistance LCD-R1, connect building-out capacitor LCD-C2 simultaneously; Be connected with 2 pin of drive integrated circult between compensating resistance LCD-R1 and the compensating resistance LCD-R2, connect building-out capacitor LCD-C3 simultaneously; Be connected with 3 pin of drive integrated circult between compensating resistance LCD-R2 and the compensating resistance LCD-R3, connect building-out capacitor LCD-C4 simultaneously; After being connected, the other end of building-out capacitor LCD-C2, building-out capacitor LCD-C3 and building-out capacitor LCD-C4 meets GND.
Described backlight drive circuit has three groups of identical drivers, this driver has two triodes, an input triode is connected with input end by input resistance with base stage, the grounded emitter of input triode, collector is connected with the base stage of output triode by current-limiting resistance, between the emitter of output triode and base stage, be connected with inclined to one side resistance down, emitter also is connected with two two divider resistances simultaneously, each divider resistance all is connected with positive supply, the collector of output triode is connected with two output resistances simultaneously, and the other end of two output resistances is respectively independently output terminal.
Embodiment 2: monochromatic colorful LCD following components is formed, and comprising: LCD 1, RGB is backlight 2, temperature-compensation circuit and IC 3, backlight drive circuit 4, control MCU 5
LCD module COB is shown as LCD, Frame is a framework, backlight is 2 groups of independently RGB backlights, comprise temperature-compensation circuit and driving circuit above the PCB, connected mode is that Rubber forms, fluorescent lifetime, glow color and the luminous order of control backlight are set by driving circuit and software.
Field preface Multicolored LCD module connecting circuit figure of the present invention is made up of four parts, and first is LCD COM, and the SEG drive wire drives liquid crystal display device.Second portion is temperature compensation and drive IC.The drive controlling LCD.Third part is RGB three look backlight drive circuits, and this circuit is connected with control MCU.The 4th part is controlled color backlight and external data drive IC for control MCU, realizes the colorize of LCD.
Claims (3)
1. the colorful liquid LCD of field preface module, it is characterized in that: this display includes that framework, LCDs, temperature compensation driver, RGB are backlight, backlight driver and control MCU, the output terminal of control MCU is connected with backlight driver with the temperature compensation driver simultaneously, and the temperature compensation driver is connected with RGB is backlight with LCDs respectively with backlight driver; LCDs is installed in the framework front end face, is connected with control knob below LCDs; Temperature compensation driver, RGB are backlight, backlight driver and control MCU are installed on the printed-wiring board (PWB), and printed-wiring board (PWB) is installed in the rear end face of framework.
2. according to claim 1 preface Multicolored LCD module, it is characterized in that: described temperature-compensation circuit and driving circuit have drive integrated circult, 1 pin of drive integrated circult is connected with 25 pin, 2 pin are connected with 24 pin, 3 pin are connected with 23 pin, 4 pin and 22 pin are the GND end, 5 pin, 6 pin and 21 pin connect positive supply, 7 pin all are connected with compensating resistance with 19 pin, connect two compensating resistances on each pin, compensating resistance LCD-J1 is connected with GND with compensating resistance LCD-J3, and compensating resistance LCD-J2 is connected with positive supply with compensating resistance LCD-J4; Compensating resistance LCD-R0, compensating resistance LCD-R1, compensating resistance LCD-R2, compensating resistance LCD-R3 and building-out capacitor LCD-C1 are connected between positive supply and the GND, be connected with 1 pin of drive integrated circult between compensating resistance LCD-R0 and the compensating resistance LCD-R1, connect building-out capacitor LCD-C2 simultaneously; Be connected with 2 pin of drive integrated circult between compensating resistance LCD-R1 and the compensating resistance LCD-R2, connect building-out capacitor LCD-C3 simultaneously; Be connected with 3 pin of drive integrated circult between compensating resistance LCD-R2 and the compensating resistance LCD-R3, connect building-out capacitor LCD-C4 simultaneously; After being connected, the other end of building-out capacitor LCD-C2, building-out capacitor LCD-C3 and building-out capacitor LCD-C4 meets GND.
3. according to claim 1 preface Multicolored LCD module, it is characterized in that: described backlight drive circuit has three groups of identical drivers, this driver has two triodes, an input triode is connected with input end by input resistance with base stage, the grounded emitter of input triode, collector is connected with the base stage of output triode by current-limiting resistance, between the emitter of output triode and base stage, be connected with inclined to one side resistance down, emitter also is connected with two two divider resistances simultaneously, each divider resistance all is connected with positive supply, the collector of output triode is connected with two output resistances simultaneously, and the other end of two output resistances is respectively independently output terminal.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2010101536624A CN102236186A (en) | 2010-04-23 | 2010-04-23 | Field sequential multicolor liquid crystal display (LCD) module |
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| CN2010101536624A CN102236186A (en) | 2010-04-23 | 2010-04-23 | Field sequential multicolor liquid crystal display (LCD) module |
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| CN102236186A true CN102236186A (en) | 2011-11-09 |
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| CN2010101536624A Pending CN102236186A (en) | 2010-04-23 | 2010-04-23 | Field sequential multicolor liquid crystal display (LCD) module |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102419963A (en) * | 2011-12-19 | 2012-04-18 | 埃泰克汽车电子(芜湖)有限公司 | Color display screen and display method thereof |
| CN111326119A (en) * | 2020-04-03 | 2020-06-23 | 京东方科技集团股份有限公司 | Driving method of backlight module, field sequence display device and VR equipment |
-
2010
- 2010-04-23 CN CN2010101536624A patent/CN102236186A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102419963A (en) * | 2011-12-19 | 2012-04-18 | 埃泰克汽车电子(芜湖)有限公司 | Color display screen and display method thereof |
| CN102419963B (en) * | 2011-12-19 | 2013-06-26 | 埃泰克汽车电子(芜湖)有限公司 | Color display screen and display method thereof |
| CN111326119A (en) * | 2020-04-03 | 2020-06-23 | 京东方科技集团股份有限公司 | Driving method of backlight module, field sequence display device and VR equipment |
| CN111326119B (en) * | 2020-04-03 | 2021-08-27 | 京东方科技集团股份有限公司 | Driving method of backlight module in field sequential display device and field sequential display device |
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Application publication date: 20111109 |