CN203397672U - Drive display device - Google Patents
Drive display device Download PDFInfo
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- CN203397672U CN203397672U CN201320372329.1U CN201320372329U CN203397672U CN 203397672 U CN203397672 U CN 203397672U CN 201320372329 U CN201320372329 U CN 201320372329U CN 203397672 U CN203397672 U CN 203397672U
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Abstract
The utility model relates to a drive display device. The drive display device comprises a touch control unit which is used for touch operation, a first storage unit which is used for data storage, an interface unit, a drive unit, a display unit, a power supply unit which is used for powering the display unit and a step-down unit which is used for respectively powering the touch control unit, the first storage unit, the interface unit, the drive unit and the display unit. The interface unit is respectively connected with the touch control unit and the first storage unit, and switches the working condition of the touch control unit and the first storage unit through chip selection. The drive unit receives data or a command transmitted by the interface unit and drives the display unit to carry out displaying. The drive display device provided by the utility model has the advantage of fast data updating.
Description
Technical field
The utility model relates to demonstration field, more particularly, relates to a kind of driving display device.
Background technology
In industry or other field human-computer interaction interface, mostly adopt TFT liquid crystal display, by TFT liquid crystal display, can offer user friendly, convenient and detailed operation steps, for example 7 CunTFT，Qi viewing areas are larger, can realize more interactive information, and convenient operation, because screen becomes big font picture, also will become greatly, and can allow user's visual effect become better, but because the region showing is larger, if upgrade the data of whole screen, with respect to other small-sized TFT speed, will be slower.
Utility model content
The technical problems to be solved in the utility model is, for the slow defect of the above-mentioned renewal speed of prior art, provides a kind of renewal speed to drive faster display device.
The utility model solves the technical scheme that its technical matters adopts: construct a kind of driving display device, comprise touch control unit for touch operation, for storing first storage unit, interface unit, driver element, display unit of data, for the power supply unit to described display unit power supply and respectively to the pressure unit of described touch control unit, the first storage unit, interface unit, driver element and display unit power supply; Described interface unit is connected with the first storage unit with described touch control unit respectively and by sheet, selects the duty of switching described touch control unit and the first storage unit, and described driver element receives data or the order of described interface unit transmission and drives described display unit to show.
In driving display device described in the utility model, also comprise for storing picture or/and the second storage unit of word, the second storage unit is connected with described interface unit, and by its duty of sheet choosing switching of described interface unit.
In driving display device described in the utility model, described interface unit comprises first interface, described first interface comprises a plurality of for transmit the FPDP of data or order to described driver element, and described first interface also comprises the gating end for driver element described in gating.
In driving display device described in the utility model, described first interface also comprises touch control sheet choosing end, first choosing end and the second choosing end that is respectively used to touch control unit described in gating, the first storage unit and the second storage unit; Also comprise the first control end, the second control end and the 3rd control end for operating described touch control unit, the first storage unit and the second storage unit.
In driving display device described in the utility model, described power supply unit comprises for the first power circuit and the second source circuit for powering to described display unit of voltage backlight are provided, described the first power circuit converts tertiary voltage to the 5th voltage, described the first power circuit comprises for controlling the PWM control end of the backlight illumination of described display unit, described PWM control end is connected with a port of described first interface, and described second source circuit converts respectively tertiary voltage to the 4th voltage, the 6th voltage and the 7th voltage.
In driving display device described in the utility model, described touch control unit comprises touch screen ADC conversion chip, the 12nd pin of described touch screen ADC conversion chip, the 14th pin and the 16th pin are connected with described the first control end, the second control end and the 3rd control end respectively, and the 15th pin of described touch screen ADC conversion chip is connected with described touch control sheet choosing end.
In driving display device described in the utility model, described the first storage unit comprises flash storage card, the 2nd pin of described flash storage card, the 5th pin and the 6th pin are connected with described the first control end, the second control end and the 3rd control end respectively, and the 1st pin of described flash storage card is connected with described first choosing end.
In driving display device described in the utility model, described the second storage unit comprises SD card, the 3rd pin of described SD card, the 5th pin and the 7th pin are connected with the first control end with described the second control end, the 3rd control end respectively, and the 2nd pin of described SD card is connected with described second choosing end.
In driving display device described in the utility model, described driver element comprises driving chip, described display unit comprises TFT liquid crystal display, described driving chip comprises a plurality of rgb signal drive ends that rgb signal is provided to described TFT liquid crystal display, to described TFT liquid crystal display, provide first of vertical direction synchronizing signal synchronously to hold, to described TFT liquid crystal display, provide second of horizontal direction synchronizing signal synchronously to hold, the clock signal terminal of pixel clock signal is provided to described TFT liquid crystal display.
In driving display device described in the utility model, described pressure unit converts second voltage to first voltage, described second voltage is respectively to described touch control unit, the first storage unit, the second storage unit, interface unit, driver element and display unit power supply, and described the first voltage is powered to described display unit.
Implement driving display device of the present utility model, there is following beneficial effect: and select function to switch the duty of touch control unit and the first storage unit by the sheet of interface unit, the operation shared interface of touch control unit and the first storage unit, reduced complexity, so its storage data are more convenient, Data Update speed.
Accompanying drawing explanation
Fig. 1 is that the utility model drives the structural representation in embodiment of display device;
Fig. 2 is the circuit theory diagrams of interface unit in described embodiment;
Fig. 3 is the circuit theory diagrams of driver element and display unit in described embodiment;
Fig. 4 is the circuit theory diagrams of the first power circuit in described embodiment;
Fig. 5 is the circuit theory diagrams of second source circuit in described embodiment;
Fig. 6 is the circuit theory diagrams of pressure unit in described embodiment;
Fig. 7 is the circuit theory diagrams of touch control unit in described embodiment;
Fig. 8 is the circuit theory diagrams of the first storage unit in described embodiment;
Fig. 9 is the circuit theory diagrams of the second storage unit in described embodiment.
Embodiment
For the ease of those of ordinary skill in the art, can understand and implement the utility model, below in conjunction with accompanying drawing, the utility model embodiment is described further.
At the utility model, drive in display device embodiment, the structural representation of this display drive apparatus as shown in Figure 1, in Fig. 1, this driving display device comprises touch control unit 1, the first storage unit 2, interface unit 3, driver element 4, display unit 5, pressure unit 6 and power supply unit 7; Wherein, touch control unit 1 is for touch operation, the first storage unit 2 is for storing data, and power supply unit 7 is for powering to display unit 5, and pressure unit 6 is respectively to touch control unit 1, the first storage unit 2, interface unit 3, driver element 4 and display unit 5 power supplies; Interface unit 3 is connected with the first storage unit 2 with touch control unit 1 respectively and by sheet, selects the duty of switching touch control unit 1 and the first storage unit 2, and data or the order that driver element 4 reception interface units 3 transmit also drives display unit 5 to show.Power supply unit 7 comprises that the first power circuit 71 and second source circuit 72, the first power circuits 71 are for providing voltage backlight to display unit 5, and second source circuit 72 is for powering to display unit 5.
In the present embodiment, drive display device the second storage unit 8, the second storage unit 8 for storing picture or/and word, the second storage unit 8 is connected with interface unit 3, also by the sheet choosing of interface unit 3, switches its duty, it is worth mentioning that, this duty is strobe state or non-strobe state.
In Fig. 2 the present embodiment interface unit structural representation, in Fig. 2, interface unit 3 comprises first interface CON1, first interface CON1 comprises a plurality of for transmitting the FPDP of data or order to driver element 4, in the present embodiment, have 16 FPDP, these 16 FPDP are FSMC-D0 to FSMC-D15, and first interface CON1 also comprises the gating end LCD_CS for gate driving circuit unit 4.First interface CON1 also comprises touch control sheet choosing end TP_CS, first choosing end F_CS and second choosing end SD_CS, and touch control sheet choosing end TP_CS, first choosing end F_CS and second choosing end SD_CS are respectively used to gating touch control unit 1, the first storage unit 2 and the second storage unit 8; First interface CON1 also comprises the first control end SPI-MISO, the second control end SPI-MOSI and the 3rd control end SPI-SCK, and the first control end SPI-MISO, the second control end SPI-MOSI and the 3rd control end SPI-SCK are used for operating touch control unit 1, the first storage unit 2 and the second storage unit 8.First interface CON1 also comprises data/order switching signal port LCD_RS, writes clock port LCD_WR, reads clock port LCD_RD and reset signal port RESET.
It is worth mentioning that, in the other situation of the present embodiment, interface unit 3 can also comprise the second interface CON3, first interface CON1 and the second interface CON3 are external interface, its interface signal is the same, these two interface signals are all the same, and arrangement mode is different, can provide different mounting meanss like this.
Fig. 3 is the circuit theory diagrams of driver element and display unit in the present embodiment, in Fig. 3, driver element 4 comprises driving chip U4, and display unit 5 comprises TFT liquid crystal display CON2, above-mentioned reset signal port RESET produces hardware reset signal, for driving chip U4 is resetted.Drive chip U4 to receive user data, then produce the required display of TFT liquid crystal display CON2, drive TFT liquid crystal display CON2 shows.Drive chip U4 to comprise a plurality of rgb signal drive ends that rgb signal is provided to TFT liquid crystal display CON2, in the present embodiment, there are 18 rgb signal drive ends, these 18 rgb signal drive ends are LD0 to LD17, drive chip U4 also to comprise that first synchronously holds (the 43rd pin), second synchronously holds (the 44th pin) and clock signal terminal (the 45th pin), the first synchronous end provides vertical direction synchronizing signal VS to TFT liquid crystal display CON2, the second synchronous end provides horizontal direction synchronizing signal HS to TFT liquid crystal display CON2, clock signal terminal provides pixel clock signal DCLK to TFT liquid crystal display CON2.The 34th port of first interface CON1 provides the voltage backlight of TFT liquid crystal display CON2.TFT liquid crystal display CON2 in the present embodiment is 7 cun of TFT liquid crystal displays, and certainly, under the certain situation of the present embodiment, TFT liquid crystal display CON2 can be also the TFT liquid crystal display of other sizes.
Fig. 4 is the circuit theory diagrams of the first power circuit in the present embodiment, in Fig. 4, the first power circuit 71 converts tertiary voltage VD3 to the 5th voltage VD5, the first power circuit 71 comprises PWM control end, this PWM control end is the base stage of triode Q1, PWM control end is used for controlling the backlight illumination of display unit 5 by the adjusting of PWM, this PWM control end is connected with a port (the 28th port) of first interface CON1.In the present embodiment, tertiary voltage is 5V, and the 5th voltage is 9.9V.The first power circuit 71 comprises the first power supply chip U8, and the first power supply chip U8 produces 9.9V voltage backlight.
Fig. 5 is the circuit theory diagrams of second source circuit in the present embodiment, and in Fig. 5, second source circuit 72 converts respectively tertiary voltage VD3 to the 4th voltage VD4, the 6th voltage VD6 and the 7th voltage VD7.In the present embodiment, the 4th voltage VD4 is-7V, and the 6th voltage is 10.4V, and the 7th voltage is 16V.Second source circuit 72 comprises second source chip U8, and second source chip U8 is by diode and capacitor combination, produce TFT liquid crystal display CON2 required-7V, 10.4V and 16V voltage.
Fig. 6 is the circuit theory diagrams of pressure unit in the present embodiment, in Fig. 6, pressure unit 6 converts second voltage VD2 to first voltage VD1, second voltage VD2 is respectively to touch control unit 1, the first storage unit 2, the second storage unit 8, interface unit 3, driver element 4 and display unit 5 power supplies, and the first voltage VD1 is to display unit 5 power supplies.In the present embodiment, the first voltage is 1.2V, and second voltage is 3.3V.Pressure unit 6 comprises voltage transitions chip U3.
Fig. 7 is the circuit theory diagrams of touch control unit in the present embodiment, in Fig. 7, touch control unit 1 comprises touch screen ADC conversion chip U2, the 12nd pin of touch screen ADC conversion chip U2, the 14th pin and the 16th pin respectively with the first control end SPI-MISO, the second control end SPI-MOSI and the 3rd control end SPI-SCK, the 15th pin of touch screen ADC conversion chip U2 and touch control sheet choosing end TP_CS is connected.When touch control sheet choosing end TP_CS gating touch screen ADC conversion chip U2, touch screen ADC conversion chip U2 enters duty, and the first control end SPI-MISO, the second control end SPI-MOSI and the 3rd control end SPI-SCK control the operation of touch screen ADC conversion chip U2.Touch control unit 1 also comprises the first touch screen interface J1 and the second touch screen interface J2, and the first touch screen interface J1 and the second touch screen interface J2 can support the four-wire ohm touch screen of two kinds of winding displacement positions.Touch screen ADC conversion chip U2 has advantages of low power consumption high efficiency, and 8bit/12bit conversion accuracy can be selected conversion accuracy flexibly in different application scenarios, and touch screen ADC conversion chip and a lot of other producer's chips compatibilities.
Fig. 8 is the circuit theory diagrams of the first storage unit in the present embodiment, in Fig. 8, the first storage unit 2 comprises flash storage card U1, the 2nd pin of flash storage card U1, the 5th pin and the 6th pin are connected with the 3rd control end SPI-SCK with the first control end SPI-MISO, the second control end SPI-MOSI respectively, and the 1st pin of flash storage card U1 is connected with first choosing end F_CS.When first choosing end F_CS gating flash storage card U1, U1 is in running order for flash storage card, and the first control end SPI-MISO, the second control end SPI-MOSI and the 3rd control end SPI-SCK control the operation of flash storage card U1.
Fig. 9 is the circuit theory diagrams of the second storage unit in the present embodiment, in Fig. 9, the second storage unit 8 comprises SD card SD1, the 3rd pin of SD card SD1, the 5th pin and the 7th pin are connected with the 3rd control end SPI-SCK with the first control end SPI-MISO, the second control end SPI-MOSI respectively, and the 2nd pin of SD card SD1 is connected with second choosing end SD_CS.When second choosing end SD_CS gating SD card SD1, SD1 is in running order for SD card, and the first control end SPI-MISO, the second control end SPI-MOSI and the 3rd control end SPI-SCK control the operation of SD card SD1.Adopt SPI mode to operate SD card SD1, agreement is simple, and wiring is simple.Touch screen ADC conversion chip U2, SD card SD1 and flash storage card U1 are used same SPI interface, and so greatly user has saved unnecessary I/O mouth, has reduced design complexities.Which chip what touch screen ADC conversion chip U2, SD card SD1 and flash storage card U1 were that the sheet choosing by SPI determines current operation is, in the present embodiment, all can not make at any time more than two or two chips is low level simultaneously, so the choosing of the sheet of the chip not using in touch screen ADC conversion chip U2, SD card SD1 and flash storage card U1 is not set to high level or floats empty (floating sky is because have pull-up resistor in module).
In a word, in the present embodiment, drive display device integrated touch screen ADC conversion chip U2, flash storage card U1 and tri-kinds of SPI equipment of SD card SD1, can be user broader mentality of designing is provided, can store easily data, and the sheet by three kinds of chips selects, can use flexibly chip, and can accomplish minimum power consumption, save user's drive plate resource, simple to operation, owing to thering is flash storage card U1 and SD card SD1, can do many-sided application, for example: the Image Display in SD card SD1 is done to digital photo frame on TFT liquid crystal display CON2; Word in SD card SD1 is shown on TFT liquid crystal display CON2 and does TXT reading tool etc.; When doing interface display, flash storage card U1 can deposit character library or show required word or other aspect data, has greatly reduced like this complexity of design.Simultaneously due to integrated flash storage card U1 and SD card SD1, user can arbitrary use any font or any image, needn't be not enough at the flash that worries chip, the imagination that can fully play oneself is made Gou Xuan interface, and can be user and save the construction cycle.
In addition, this driving display device has also been accomplished backlight adjustable, in varying environment, can regulate the backlight illumination of wanting as required, and on hardware, also can change control mode backlight, can select to drive chip controls backlight, also can select external interface to control backlight, the in the situation that of I/O anxiety, can be user and save 1 I/O like this.This display drive apparatus has adopted high-quality paster electrochemical capacitor C10, C12, C14, C15, C16, C30 and C32, has guaranteed in design the reliability of circuit, and has improved serviceable life.The selected original paper of this display drive apparatus is from power consumption, efficiency, life-span and cost consideration, saving resource.
The above embodiment has only expressed several embodiment of the present utility model, and it describes comparatively concrete and detailed, but can not therefore be interpreted as the restriction to the utility model the scope of the claims.It should be pointed out that for the person of ordinary skill of the art, without departing from the concept of the premise utility, can also make some distortion and improvement, these all belong to protection domain of the present utility model.Therefore, the protection domain of the utility model patent should be as the criterion with claims.
Claims (10)
1. one kind drives display device, it is characterized in that, comprise touch control unit for touch operation, for storing first storage unit, interface unit, driver element, display unit of data, for the power supply unit to described display unit power supply and respectively to the pressure unit of described touch control unit, the first storage unit, interface unit, driver element and display unit power supply; Described interface unit is connected with the first storage unit with described touch control unit respectively and by sheet, selects the duty of switching described touch control unit and the first storage unit, and described driver element receives data or the order of described interface unit transmission and drives described display unit to show.
2. driving display device according to claim 1, is characterized in that, also comprises for storing picture or/and the second storage unit of word, and the second storage unit is connected with described interface unit, and by its duty of sheet choosing switching of described interface unit.
3. driving display device according to claim 1 and 2, it is characterized in that, described interface unit comprises first interface, described first interface comprises a plurality of for transmit the FPDP of data or order to described driver element, and described first interface also comprises the gating end for driver element described in gating.
4. driving display device according to claim 3, is characterized in that, described first interface also comprises touch control sheet choosing end, first choosing end and the second choosing end that is respectively used to touch control unit described in gating, the first storage unit and the second storage unit; Also comprise the first control end, the second control end and the 3rd control end for operating described touch control unit, the first storage unit and the second storage unit.
5. driving display device according to claim 4, it is characterized in that, described power supply unit comprises for the first power circuit and the second source circuit for powering to described display unit of voltage backlight are provided, described the first power circuit converts tertiary voltage to the 5th voltage, described the first power circuit comprises for controlling the PWM control end of the backlight illumination of described display unit, described PWM control end is connected with a port of described first interface, and described second source circuit converts respectively tertiary voltage to the 4th voltage, the 6th voltage and the 7th voltage.
6. driving display device according to claim 5, it is characterized in that, described touch control unit comprises touch screen ADC conversion chip, the 12nd pin of described touch screen ADC conversion chip, the 14th pin and the 16th pin are connected with described the first control end, the second control end and the 3rd control end respectively, and the 15th pin of described touch screen ADC conversion chip is connected with described touch control sheet choosing end.
7. driving display device according to claim 6, it is characterized in that, described the first storage unit comprises flash storage card, the 2nd pin of described flash storage card, the 5th pin and the 6th pin are connected with described the first control end, the second control end and the 3rd control end respectively, and the 1st pin of described flash storage card is connected with described first choosing end.
8. driving display device according to claim 7, it is characterized in that, described the second storage unit comprises SD card, the 3rd pin of described SD card, the 5th pin and the 7th pin are connected with the first control end with described the second control end, the 3rd control end respectively, and the 2nd pin of described SD card is connected with described second choosing end.
9. driving display device according to claim 8, it is characterized in that, described driver element comprises driving chip, described display unit comprises TFT liquid crystal display, described driving chip comprises a plurality of rgb signal drive ends that rgb signal is provided to described TFT liquid crystal display, to described TFT liquid crystal display, provide first of vertical direction synchronizing signal synchronously to hold, to described TFT liquid crystal display, provide second of horizontal direction synchronizing signal synchronously to hold, the clock signal terminal of pixel clock signal is provided to described TFT liquid crystal display.
10. driving display device according to claim 9, it is characterized in that, described pressure unit converts second voltage to first voltage, described second voltage is respectively to described touch control unit, the first storage unit, the second storage unit, interface unit, driver element and display unit power supply, and described the first voltage is powered to described display unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320372329.1U CN203397672U (en) | 2013-06-26 | 2013-06-26 | Drive display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320372329.1U CN203397672U (en) | 2013-06-26 | 2013-06-26 | Drive display device |
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| CN203397672U true CN203397672U (en) | 2014-01-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201320372329.1U Expired - Fee Related CN203397672U (en) | 2013-06-26 | 2013-06-26 | Drive display device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114627834A (en) * | 2022-03-04 | 2022-06-14 | 云南安爆数码电子科技有限公司 | Method for clearing (placing) color display screen by single chip microcomputer |
-
2013
- 2013-06-26 CN CN201320372329.1U patent/CN203397672U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114627834A (en) * | 2022-03-04 | 2022-06-14 | 云南安爆数码电子科技有限公司 | Method for clearing (placing) color display screen by single chip microcomputer |
| CN114627834B (en) * | 2022-03-04 | 2023-06-13 | 云南创芯微电子科技有限公司 | Screen cleaning (setting) method for color display screen by singlechip |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140115 Termination date: 20140626 |
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