CN2554719Y - Feedback brightness detected screen device - Google Patents
Feedback brightness detected screen device Download PDFInfo
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- CN2554719Y CN2554719Y CN 02239365 CN02239365U CN2554719Y CN 2554719 Y CN2554719 Y CN 2554719Y CN 02239365 CN02239365 CN 02239365 CN 02239365 U CN02239365 U CN 02239365U CN 2554719 Y CN2554719 Y CN 2554719Y
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- display
- screen apparatus
- brightness
- reaction type
- optical sensing
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Abstract
The utility model relates to a feedback type brightness detection device, and is mainly a screen device with a liquid crystal display (LCD). The device can be applied to a wed pad. A plurality of first optical sensing components are arranged at the outer part of the display, so as to sense the change of optical source brightness on the periphery of the display and input sensing signal into the first optical sensing components to be transferred into a first digital reference signal, and a microporocessor judges whether the display is required to increase the brightness or decrease the brightness according to the first digital reference signal; an optical guide component is arranged on one side of the display, and a second optical sensing component in the display is utilized to sense the present optical source brightness of the display, and a second digital reference signal is transferred by the second optical sensing component to the microporocessor, so as to lead the microporocessor to judging whether the brightness of the present display reaches a standard value; thereby, the display can automatically adjust the brightness, and the purposes of power saving and eye protecting are realized.
Description
Technical field
The utility model relates to the brightness detected screen apparatus of a kind of reaction type, and particularly a kind of optical sensing subassembly that utilizes forms a reaction type luminance detection, and can adjust the device of screen-picture brightness automatically.
Background technology
Display belongs to a kind of plane display technique, it is widely used in various portable computers such as mobile computer, personal digital assistant, or even the Web pad (web pad) that develops recently, make on market, almost to replace traditional cathode ray tube (CRT) display soon.The LCD biggest advantage is that its volume and weight decline to a great extent, and relatively because of must not the electron gun acceleration mechanism, so the extension, rear is very short, display mirror be not thick yet, has considerable advantage really.
Its shortcoming is that display effect is relatively poor, comprise and show that contrast is lower, aspects such as the visual angle is narrower, therefore some part is still difficult reaches the display effect that similar cathode-ray tube display possesses, particularly when the operation of LCD environment is in high brightness, the easier inferior position that shows on the contrast that highlights, meaning promptly, the display effect of LCD and operating environment have great relevance, though, many LCD all have the function of automatic adjustment brightness and contrast, but they are to adjust according to picture displayed mostly, and must activate this function by button, therefore the user often must flexibly adjust the setup parameter of LCD with the operating environment of different brightness in order to reach preferable display effect, then heightens it and show contrast or brightness when ambient brightness is higher, so that obtain better visual effect, when ambient brightness is dark, then turn down it and show contrast or brightness,, obviously caused the trouble in user's practical operation so that save power consumption.
Summary of the invention
Fundamental purpose of the present utility model provides the brightness detected screen apparatus of a kind of reaction type, utilizes the technology of lead-in light sensing component, according to the variation of screen apparatus surrounding environment brightness, adjusts the display brightness of LCD automatically.
Another purpose of the present utility model provides the brightness detected screen apparatus of a kind of reaction type, is the brightness that utilizes reaction type detecting screen apparatus itself to be sent, and cooperates the screen periphery environment to provide a brightness more accurately to show.
Another purpose of the present utility model provides the brightness detected screen apparatus of a kind of reaction type, has solved under the environment of Different Light, and screen apparatus is crossed bright or dark excessively power wastage that causes and eye injury, and reaches the effect of power saving and protection eyes.
In order to reach above-mentioned purpose, the utility model mainly is to provide a kind of reaction type brightness detected screen apparatus, be to comprise a screen apparatus, a plurality of first optical sensing subassembly, a plurality of first transition components, a leaded light component, a feedback detecting unit and a microprocessor, wherein, this screen apparatus, it has a display; This first optical sensing subassembly is that the light source of this display surrounding environment of detecting changes, and exports a corresponding sensing signal; This first transition components is to be connected in this first optical sensing subassembly, converts corresponding a plurality of first numerical reference signal at this sensing signal; This leaded light component is the luminosity that receives and conduct this display; This feeds back detecting unit, be made up of one second optical sensing subassembly and one second transition components, and this second optical sensing subassembly is the light source variation of this leaded light component of detecting, and converts one second numerical reference signal to through this second transition components; And this microprocessor, be variation, in order to control the luminosity of this display according to this first certain calibration signal of numeral and this second numerical reference signal.
Description of drawings
Fig. 1 is the outside drawing of the utility model first embodiment;
Fig. 2 is the 2-2 cut-open view of Fig. 1;
Fig. 3 is the internal circuit synoptic diagram of the utility model first embodiment.
Embodiment
In order further to understand the utility model is to reach technology, means and the effect that predetermined purpose is taked, see also following about detailed description of the present utility model and accompanying drawing, the purpose of this utility model, feature and characteristics, can get one thus gos deep into and concrete understanding, yet accompanying drawing only provides reference and explanation usefulness, is not to be used for the utility model is limited.
See also Figure 1 and Figure 2, be outside drawing and the partial sectional view of the utility model first embodiment.The utility model is the brightness detected screen apparatus of a kind of reaction type, is mainly a screen apparatus 1 with display 10, and it can be applicable to the plate that networks, and display 10 be a LCD (LCD) icon is the embodiment that is used in the networking plate.This screen apparatus 1 inside also is provided with a control circuit (comparatively detailed introduction is arranged among Fig. 3), the brightness that it is electrically connected on this display 10 and is used for controlling this display 10, contiguous these display 10 positive two ends also are embedded with a slotted eye (figure slightly), for putting first optical sensing subassembly 11, the photosensory assembly of 12 grades, also can be arranged on the appropriate location of this screen apparatus 1 one side relative with the user, and this first optical sensing subassembly 11, the 12nd, be respectively photoresistance, and its resistance can change with light is strong and weak, but so the identification surrounding brightness, and be connected to control circuit in the screen apparatus 1; And this display 10 sends that a side of light source is other to be provided with a leaded light component 14, and these leaded light component 14 opposite sides are to be embedded in this display 10, and it is the luminosity that a leaded light post is mainly used to receive and conduct display 10; Other, these first optical sensing subassembly, 11,12 peripheries are the printing opacity body of cover cap one protective effect (figure slightly) in addition.
Please refer to shown in Figure 3, internal circuit synoptic diagram for the utility model first embodiment, be to have the control circuit that assemblies such as photoresistance CDS1-CDS3, current-limiting resistance R1-R3, analog/digital converter ADC1-ADC3 and microprocessor U1 connect to form, and this first optical sensing subassembly the 11, the 12nd is respectively CDS1 and CDS2, and the end of photoresistance CDS1 is connected to fixed voltage source Vcc, the other end then utilizes lead to be connected with analog/digital converter ADC1 input end with current-limiting resistance R1 one end respectively, and current-limiting resistance R1 other end ground connection; The end of photoresistance CDS2 is connected to fixed voltage source Vcc, and the other end then utilizes lead to be connected with analog/digital converter ADC2 input end with current-limiting resistance R2 one end respectively, and current-limiting resistance R2 other end ground connection; Photoresistance CDS3 is one second optical sensing subassembly 13 in addition, it is to be located at this display 10 inside, and adjacent to this leaded light component 14 (as Fig. 2), photoresistance CDS3-hold to be connected to fixed voltage source Vcc, the other end then utilizes lead to be connected with analog/digital converter ADC3 input end with current-limiting resistance R3 one end respectively, and current-limiting resistance R3 other end ground connection, analog/digital conversion ADC1-ADC3 output terminal then is connected to microprocessor U1 respectively, the microprocessor U1 other end also is connected to this display 10 via circuit, wherein this analog/digital converter ADC1 and ADC2 are respectively first transition components 15 and 16, and analog/digital converter ADC3 is second transition components 17, and this second optical sensing subassembly 13 and second transition components 17 are to form a feedback detecting unit 18, and utilize the light source of this display 10 directly to pass to second optical sensing subassembly 13 by leaded light component 14.
Utilize the composition of above-mentioned member; be to pass through first optical sensing subassembly 11; the light source of 12 these display 10 surrounding environment of detecting changes; and export a corresponding sensing signal; it is when surrounding environment light grow; first optical sensing subassembly 11; 12 resistance can diminish; thereby allow the voltage that inputs to first transition components 15 and 16 uprise; utilize first transition components 15 and 16 to convert the corresponding first numerical reference signal to again and input to microprocessor U1 at this sensing signal; allow microprocessor U1 with first transition components 15 and 16 output data and the default value of internal memory compare; after judging these display 10 palpus blasts how much; progressively strengthen the brightness in lamp source in this display 10 again; and then diminish and be positioned at the resistance that display 10 inside are used for receiving second optical sensing subassembly 13 that display 10 light sources change this moment; allow the voltage that inputs to second transition components 17 uprise; and convert the second numerical reference signal to microprocessor U1 via second transition components 17; make the variation of microprocessor U1 according to the first numerical reference signal and the second numerical reference signal; luminosity in order to control display 10; and utilize the control of feedback detecting unit 18 to reach certain luminance standard value, and reach the effect of protection eyes.
Perhaps when the light of display 10 surrounding environment dies down, first optical sensing subassembly 11, it is big that 12 resistance can become, thereby allow the voltage step-down that inputs to first transition components 15 and 16, utilize first transition components 15 and 16 to convert the corresponding first numerical reference signal to again and input to microprocessor U1 at this sensing signal, allow microprocessor U1 with first transition components 15 and 16 output data and the default value of internal memory compare, after judging that how much brightness this display 10 must reduce, progressively reduce the brightness in lamp source in this display 10 again, and then become greatly and be positioned at the resistance that display 10 inside are used for receiving second optical sensing subassembly 13 that display 10 light sources change this moment, allow the voltage step-down that inputs to second transition components 17, and convert the second numerical reference signal to microprocessor U1 via second transition components 17, make the variation of microprocessor U1 according to the first numerical reference signal and the second numerical reference signal, luminosity in order to control display 10, and utilize the control of feedback detecting unit 18 to reach certain luminance standard value, and reach the effect of power saving.
In view of the above, can change the brightness of display 10,, and allow the user under preferable visual condition, watch the shown content of this display 10 with service time of effective raising battery and protection eyes according to ambient brightness.
In addition, the user to be if to utilize be setting program that system itself provides when selecting manual light modulation, and then this microprocessor U1 will ignore the numerical value that this first transition components 15,16 and second transition components 17 are sent, and only accept the brightness value that the user manually sets.
The above; only be the detailed description and the accompanying drawing of the specific embodiment of one of the utility model the best; feature of the present utility model is not limited thereto; be not in order to restriction the utility model; all closing in the embodiment of spirit of the present utility model variation similar with it; all be contained in the category of the present utility model, any in field of the present utility model those of ordinary skill, conspicuous variation or modify all can be encompassed in this case scope of patent protection.
Claims (11)
1. brightness detected screen apparatus of reaction type is characterized in that it comprises:
One screen apparatus, it has a display;
Detect a plurality of first optical sensing subassemblies of the light source variation of this display surrounding environment, a corresponding sensing signal of its output;
A plurality of first transition components are connected in described first optical sensing subassembly, the corresponding a plurality of first numerical reference signals that convert at described sensing signal;
One receives and conducts the leaded light component of the luminosity of this display;
One feedback detecting unit changes one second optical sensing subassembly and one second transition components is formed by the light source of this leaded light component of detecting, reaches the one second numerical reference signal that converts to through this second transition components;
One microprocessor connects this first numerical reference signal and this second numerical reference signal, and this display.
2, the brightness detected screen apparatus of reaction type as claimed in claim 1 is characterized in that described screen apparatus is the networking plate.
3, the brightness detected screen apparatus of reaction type as claimed in claim 1 is characterized in that described display is a LCD.
4, the brightness detected screen apparatus of reaction type as claimed in claim 1 is characterized in that described first optical sensing subassembly is a photoresistance.
5, the brightness detected screen apparatus of reaction type as claimed in claim 1 is characterized in that described first optical sensing subassembly is to be located at the positive two ends of this display.
6, the brightness detected screen apparatus of reaction type as claimed in claim 1 is characterized in that described first transition components is an analog/digital converter.
7, the brightness detected screen apparatus of reaction type as claimed in claim 1, it is characterized in that described leaded light component is to be located at the side that this display sends light source, and this leaded light component opposite side is to be embedded in this display, and can directly receive and conduct the luminosity of this display.
8, the brightness detected screen apparatus of reaction type as claimed in claim 1 is characterized in that described leaded light component is a leaded light post.
9, the brightness detected screen apparatus of reaction type as claimed in claim 1 is characterized in that described second optical sensing subassembly is made as a photoresistance.
10, the brightness detected screen apparatus of reaction type as claimed in claim 1 is characterized in that described second optical sensing subassembly is located at this display interior, and adjacent to this leaded light component.
11, the brightness detected screen apparatus of reaction type as claimed in claim 1 is characterized in that described second transition components is an analog/digital converter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02239365 CN2554719Y (en) | 2002-06-24 | 2002-06-24 | Feedback brightness detected screen device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02239365 CN2554719Y (en) | 2002-06-24 | 2002-06-24 | Feedback brightness detected screen device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2554719Y true CN2554719Y (en) | 2003-06-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02239365 Expired - Fee Related CN2554719Y (en) | 2002-06-24 | 2002-06-24 | Feedback brightness detected screen device |
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| CN (1) | CN2554719Y (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100350218C (en) * | 2004-02-19 | 2007-11-21 | 友达光电股份有限公司 | Position encoding sensor, method and system for position in the sensor display device |
| CN100390610C (en) * | 2004-11-24 | 2008-05-28 | 友达光电股份有限公司 | Display photosensing system and apparatus thereof |
| CN102012264A (en) * | 2010-10-08 | 2011-04-13 | 矽创电子股份有限公司 | Handheld device for detecting ambient light illumination |
| US8040341B2 (en) | 2004-01-09 | 2011-10-18 | O2Micro Inc | Brightness control system |
| CN103021337A (en) * | 2012-12-20 | 2013-04-03 | 高炎华 | Light-emitting diode (LED) display device with brightness adjusting device |
| CN109147698A (en) * | 2018-09-12 | 2019-01-04 | 重庆惠科金渝光电科技有限公司 | A kind of display device and its screen intensity Automatic adjustment method |
-
2002
- 2002-06-24 CN CN 02239365 patent/CN2554719Y/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8040341B2 (en) | 2004-01-09 | 2011-10-18 | O2Micro Inc | Brightness control system |
| CN100350218C (en) * | 2004-02-19 | 2007-11-21 | 友达光电股份有限公司 | Position encoding sensor, method and system for position in the sensor display device |
| CN100390610C (en) * | 2004-11-24 | 2008-05-28 | 友达光电股份有限公司 | Display photosensing system and apparatus thereof |
| CN102012264A (en) * | 2010-10-08 | 2011-04-13 | 矽创电子股份有限公司 | Handheld device for detecting ambient light illumination |
| CN103021337A (en) * | 2012-12-20 | 2013-04-03 | 高炎华 | Light-emitting diode (LED) display device with brightness adjusting device |
| CN109147698A (en) * | 2018-09-12 | 2019-01-04 | 重庆惠科金渝光电科技有限公司 | A kind of display device and its screen intensity Automatic adjustment method |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |