CN205016214U - Touch screen control device that can show luminance according to environment light intensity automatic adjustment - Google Patents
Touch screen control device that can show luminance according to environment light intensity automatic adjustment Download PDFInfo
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- CN205016214U CN205016214U CN201520623577.8U CN201520623577U CN205016214U CN 205016214 U CN205016214 U CN 205016214U CN 201520623577 U CN201520623577 U CN 201520623577U CN 205016214 U CN205016214 U CN 205016214U
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- microprocessor
- touch
- screen
- display
- light intensity
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- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
Abstract
The utility model belongs to the technical field of the touch -sensitive screen technique and specifically relates to a touch screen control device that can show luminance according to environment light intensity automatic adjustment. It includes TFT LCD screen, microprocessor, touch -sensitive screen, display controller and circuit in a poor light. Touch sensor listens the contact signal on the touch -sensitive screen and carries out the coordinate information of AD conversion back to microprocessor output contact point to the contact signal, touch sensor receives the control command that microprocessor carried simultaneously, display controller reads the demonstration buffer memory data in the microprocessor and accelerates the TFT LCD screen and shows, the circuit that is shaded converts the environment luminous intensity that detects into magnitude of voltage and carries to microprocessor, microprocessor passes through the demonstration luminance of display controller control TFT display screen. The utility model discloses when whole device moved, circuit in a poor light then converted the environment luminous intensity that detects into magnitude of voltage and carries to microprocessor, and microprocessor passes through the demonstration luminance of display controller control TFT display screen to reach and reduce energy consumption and energy -conserving mesh.
Description
Technical field
The utility model relates to touch screen technology field, especially a kind ofly environmentally can automatically adjust the touch-screen control device of display brightness by light intensity.
Background technology
Touch-screen due to light, occupy little space, the advantage such as flexible, replaced keyboard gradually, become the simplest in embedded system, convenient and natural a kind of human-computer interaction device; As used LCD touch screen can reach visual requirement as the input-output device of commercial unit, facilitating execute-in-place, the cost of microcomputer information product can be reduced again.But existing touch-screen due to design defect also there is the problems such as power consumption is high, not energy-conservation.
Utility model content
For the deficiency that above-mentioned prior art exists, the purpose of this utility model is that a kind of structure is simple, stable performance environmentally can automatically adjust the touch-screen control device of display brightness by light intensity.
To achieve these goals, the utility model adopts following technical scheme:
A kind ofly environmentally can automatically adjust the touch-screen control device of display brightness by light intensity, it comprises TFT liquid crystal display, microprocessor, the touch-screen being attached at TFT liquid crystal display front surface, the display controller that is connected to the touch inductor between microprocessor and touch-screen and is connected between microprocessor and TFT liquid crystal display, and it also comprises a backlight circuit be connected with microprocessor;
Activation signal on described touch inductor detecting touch-screen also carries out to activation signal the coordinate information that A/D changes backward microprocessor output contact point, described touch inductor receives the control command of microprocessor conveying simultaneously, described display controller reads the display buffer data in microprocessor and accelerates TFT liquid crystal display and shows, the ambient light intensity detected is converted to magnitude of voltage and is delivered to microprocessor by described backlight circuit, and described microprocessor is by the display brightness of display controller control TFT display screen.
Preferably, described microprocessor is AT91SAM9261 type processor;
Described touch inductor is ADS7846 type interface chip, and described touch inductor is connected to the SPI interface of microprocessor;
Described touch-screen is AA065VD01 type LED backlight display screen;
Described display controller is dma controller;
Described backlight circuit comprises a TSL250RD type light sensing chip.
Preferably, described microprocessor is also connected with the NANDFlash storer that SDRAM storer that capacity is 128MB and capacity are 64MB, and described microprocessor is also connected with a USB circuit.
Owing to have employed such scheme, the utility model is when whole plant running, the ambient light intensity detected then is converted to magnitude of voltage and is delivered to microprocessor by backlight circuit, microprocessor by the display brightness of display controller control TFT display screen, thus reaches reduction energy consumption and energy-conservation object; Its structure is simple, stable performance, has very strong practical value.
Accompanying drawing explanation
Fig. 1 is the system principle diagram of the utility model embodiment.
Embodiment
Below in conjunction with accompanying drawing, embodiment of the present utility model is described in detail, but the multitude of different ways that the utility model can be defined by the claims and cover is implemented.
As shown in Figure 1, what the utility model embodiment provided a kind ofly environmentally can adjust the touch-screen control device of display brightness by light intensity automatically, it comprises TFT liquid crystal display 1, microprocessor 2, the touch-screen 3 being attached at TFT liquid crystal display 1 front surface, the display controller 5 that is connected to the touch inductor 4 between microprocessor 2 and touch-screen 3 and is connected between microprocessor 2 and TFT liquid crystal display 1, and it also comprises a backlight circuit 6 be connected with microprocessor 2; Detect the activation signal on touch-screen 3 when touch inductor 4 and A/D is carried out to activation signal and change the coordinate information that backward microprocessor 1 exports contact point, thus utilize the data corresponding to microprocessor 2 control TFT liquid crystal display 1 pair of touch signal to show, simultaneously, touch inductor 4 receives the control command that microprocessor 2 is carried, to realize the object of two-way communication between the two, ensure that touch signal precisely gathers; The display buffer data of display controller 5 then in reading microprocessor 2 are also accelerated TFT liquid crystal display 1 and are carried out content display, when whole plant running, the ambient light intensity detected is converted to magnitude of voltage and is delivered to microprocessor 2 by backlight circuit 6, microprocessor 2 by the display brightness of display controller 5 control TFT display screen 1, thus reaches reduction energy consumption and energy-conservation object.
For ensureing the performance of whole device, improve its job stability, the microprocessor 2 preferably AT91SAM9261 type processor of the present embodiment simultaneously; Touch inductor 4 is ADS7846 type interface chip preferably, and touch inductor 4 is connected to the SPI interface of microprocessor 2; Touch-screen 3 is AA065VD01 type LED backlight display screen preferably; Display controller 5 preferred dma controllers or the lcd controller utilizing microprocessor 2 inner integrated; And backlight circuit 6 comprises a TSL250RD type light sensing chip, with the feature such as utilize its high speed, low-power consumption, broad quantum, susceptibility is high, peripheral circuit is simple, carry out the power of better monitoring of environmental light.
In addition, ensure for providing for human-machine interaction data complicated and changeable in whole device to store, the microprocessor 2 of the present embodiment is also connected with the NANDFlash storer 8 that SDRAM storer 7 that capacity is 128MB and capacity are 64MB, simultaneously, the function of the whole device of horn of plenty, can connect the input equipment such as mouse, keyboard, the microprocessor 2 of the present embodiment is also connected with a USB circuit 9.
The foregoing is only preferred embodiment of the present utility model; not thereby the scope of the claims of the present utility model is limited; every utilize the utility model instructions and accompanying drawing content to do equivalent structure or equivalent flow process conversion; or be directly or indirectly used in other relevant technical fields, be all in like manner included in scope of patent protection of the present utility model.
Claims (3)
1. one kind environmentally can adjust the touch-screen control device of display brightness by light intensity automatically, it is characterized in that: it comprises TFT liquid crystal display, microprocessor, the touch-screen being attached at TFT liquid crystal display front surface, the display controller that is connected to the touch inductor between microprocessor and touch-screen and is connected between microprocessor and TFT liquid crystal display, and it also comprises a backlight circuit be connected with microprocessor;
Activation signal on described touch inductor detecting touch-screen also carries out to activation signal the coordinate information that A/D changes backward microprocessor output contact point, described touch inductor receives the control command of microprocessor conveying simultaneously, described display controller reads the display buffer data in microprocessor and accelerates TFT liquid crystal display and shows, the ambient light intensity detected is converted to magnitude of voltage and is delivered to microprocessor by described backlight circuit, and described microprocessor is by the display brightness of display controller control TFT display screen.
2. a kind ofly as claimed in claim 1 environmentally can automatically adjust the touch-screen control device of display brightness by light intensity, it is characterized in that:
Described microprocessor is AT91SAM9261 type processor;
Described touch inductor is ADS7846 type interface chip, and described touch inductor is connected to the SPI interface of microprocessor;
Described touch-screen is AA065VD01 type LED backlight display screen;
Described display controller is dma controller;
Described backlight circuit comprises a TSL250RD type light sensing chip.
3. a kind ofly as claimed in claim 2 environmentally can automatically adjust the touch-screen control device of display brightness by light intensity, it is characterized in that: described microprocessor is also connected with the NANDFlash storer that SDRAM storer that capacity is 128MB and capacity are 64MB, and described microprocessor is also connected with a USB circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520623577.8U CN205016214U (en) | 2015-08-18 | 2015-08-18 | Touch screen control device that can show luminance according to environment light intensity automatic adjustment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520623577.8U CN205016214U (en) | 2015-08-18 | 2015-08-18 | Touch screen control device that can show luminance according to environment light intensity automatic adjustment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205016214U true CN205016214U (en) | 2016-02-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520623577.8U Expired - Fee Related CN205016214U (en) | 2015-08-18 | 2015-08-18 | Touch screen control device that can show luminance according to environment light intensity automatic adjustment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205016214U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110762780A (en) * | 2019-11-01 | 2020-02-07 | 海润新风（重庆）智能技术有限公司 | Indoor air environment wireless control system and method based on Internet of things cloud platform |
-
2015
- 2015-08-18 CN CN201520623577.8U patent/CN205016214U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110762780A (en) * | 2019-11-01 | 2020-02-07 | 海润新风（重庆）智能技术有限公司 | Indoor air environment wireless control system and method based on Internet of things cloud platform |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160203 Termination date: 20180818 |
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| CF01 | Termination of patent right due to non-payment of annual fee |