CN202757687U - Lcd brightness measurement device - Google Patents
Lcd brightness measurement device Download PDFInfo
- Publication number
- CN202757687U CN202757687U CN 201220319228 CN201220319228U CN202757687U CN 202757687 U CN202757687 U CN 202757687U CN 201220319228 CN201220319228 CN 201220319228 CN 201220319228 U CN201220319228 U CN 201220319228U CN 202757687 U CN202757687 U CN 202757687U
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- main control
- control module
- light
- photoelectric conversion
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Abstract
The utility model discloses an LCD brightness measurement device which comprises a photoelectric conversion module and a main control module, wherein the photoelectric conversion module and the main control module are electrically connected with each other. The photoelectric conversion module senses an optical signal of a product through a built-in photosensor, converts the optical signal into a digital signal and then sends the digital signal to the main control module. The main control module analyzes and calibrates the received digital signal to obtain the luminance value of the product. The LCD brightness measurement device is simple in structure and low in cost and is very convenient to use.
Description
Technical field
The utility model relates to a kind of LCD brightness measuring equipment.
Background technology
At the production field of LCD, need to carry out repeatedly measurement to guarantee the homogeneity of product brightness to LCD module and LCD backlight illumination, therefore various luminance test equipment are able to a large amount of uses.
Present known amount of brightness measurement equipment, comprising: current signal is converted to the conversion equipment of voltage signal; Voltage signal is converted to the A/D conversion equipment of digital signal; Digital signal can be converted to the conversion equipment of brightness value; Amount of brightness cls analysis device etc.But there is the high shortcoming of cost in said apparatus, or usage is complicated, can't be simple and convenient LCD module and LCD brightness backlight are carried out convenient and reliable measurement.
Summary of the invention
In order to overcome defects, the utility model provides a kind of LCD brightness measuring equipment, and this apparatus structure is simple, and cost is low, and is very easy to use.
The utility model for the technical scheme that solves its technical matters and adopt is: a kind of LCD brightness measuring equipment, the photoelectric conversion module and the main control module that comprise mutual electrical connection, the light signal of the light sensitive component induction product that described photoelectric conversion module is established by interior, and this light signal is converted to digital signal sends again described main control module to; Described main control module to the digital signal that receives analyze, calibration process obtains the product brightness value.
As further improvement of the utility model, described main control module comprises that also one is used for showing the display device of described product brightness value.
As further improvement of the utility model, described display device comprises display screen, LED light, hummer, knob and button.
As further improvement of the utility model, described light sensitive component can be responded to infrared light and the visible light that product sends.
As further improvement of the utility model, described photoelectric conversion module is accepted the communication instruction of described main control module, finishes initialization and cooperates main control module to finish self-checking function.
The beneficial effects of the utility model are: simple in structure, easy to use, cost is low.
Description of drawings
Fig. 1 is the utility model structural representation;
Fig. 2 is display device structure schematic diagram described in the utility model.
By reference to the accompanying drawings, make the following instructions:
1---photoelectric conversion module 2---main control module
11---light sensitive component 3---display device
31---display screen 32---LED light
33---hummer 34---knob
35---button
Embodiment
Below in conjunction with accompanying drawing, the utility model is elaborated, but protection domain of the present utility model is not limited to following specific embodiment.
As shown in Figure 1, a kind of LCD brightness measuring equipment, the photoelectric conversion module 1 and the main control module 2 that comprise mutual electrical connection, photoelectric conversion module be by the light signal of the interior light sensitive component of establishing 11 induction products, and this light signal is converted to digital signal sends main control module to again; Main control module to the digital signal that receives analyze, calibration process obtains the product brightness value.
Above-mentioned photoelectric conversion module is accepted the instruction of described main control module, finishes initialization and cooperates main control module to finish self-checking function.
Above-mentioned light sensitive component can be responded to infrared light and the visible light that product sends simultaneously.
Above-mentioned main control module comprises that also one is used for showing the display device 3 of described product brightness value, and this display device comprises display screen 31, LED light 32, hummer 33, knob 34 and button 35.Light sensitive component can be responded to infrared light and the visible light that product sends.
Wherein, main control module adopts the MCU processor, and the MCU processor detects and initialization photoelectric conversion module after start, and main control module has the functions such as calibration, data processing and overproof warning simultaneously.
According to LCD module to be measured and LCD different luminance brightness backlight, default high brightness, middle brightness, three kinds of pattern brightness ranges of low-light level among the MCU.
Suppose that first brightness to be measured is in the high brightness model domain, then, light sensitive component is set to read the luminance brightness data that light sensitive component returns accordingly, as this moment data surpass preset range, then automatically switch to middle luminance patterns or low-luminance mode and carry out data and read.
After continuous several times reads the luminance brightness data, by modes such as filtering, summation, calibrations the data that read are processed.Then the laggard row format conversion that is disposed send the data after processing display screen to show.
Again according to the brightness read mode of last time, read the light sensitive component data, judge that data are in corresponding luminance patterns scope after, carry out data process after the update displayed screen display show.Otherwise reset behind the brightness read mode again reading out data.
Above-mentioned measurement mechanism need to be calibrated in standard sources and higher leveled luminance brightness testing apparatus (calibration equipment) before first the use.The principle of calibration is according to light signal with through having approximate proportional relation between the data-signal after the light sensitive component conversion.When the start of this measurement mechanism by entering calibration mode after certain button order.According to the information on the display screen of this device, by knob, and button finish calibration.
In addition, when the start of this measurement mechanism by entering the alarm settings pattern after the specific button order.According to the information on the display screen of this device, by knob, and button finish the setting of alarm criteria.In test process, if the situation of the super preset standard of brightness to be measured occurs, then can pass through sound or pilot lamp or both same alarms, with reminding user.
Claims (5)
1. LCD brightness measuring equipment, it is characterized in that: the photoelectric conversion module (1) and the main control module (2) that comprise mutual electrical connection, described photoelectric conversion module is by the light signal of the interior light sensitive component of establishing (11) induction product, and this light signal is converted to digital signal sends described main control module to again; Described main control module to the digital signal that receives analyze, calibration process obtains the product brightness value.
2. LCD brightness measuring equipment according to claim 1 is characterized in that: described main control module comprises that also one is used for showing the display device (21) of described product brightness value.
3. LCD brightness measuring equipment according to claim 2, it is characterized in that: described display device comprises display screen, LED light, hummer, knob and button.
4. each described LCD brightness measuring equipment in 3 according to claim 1, it is characterized in that: described light sensitive component can be responded to infrared light and the visible light that product sends.
5. each described LCD brightness measuring equipment in 3 according to claim 1, it is characterized in that: described photoelectric conversion module is accepted the communication instruction of described main control module, finishes initialization and cooperates main control module to finish self-checking function.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220319228 CN202757687U (en) | 2012-07-04 | 2012-07-04 | Lcd brightness measurement device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220319228 CN202757687U (en) | 2012-07-04 | 2012-07-04 | Lcd brightness measurement device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202757687U true CN202757687U (en) | 2013-02-27 |
Family
ID=47736860
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220319228 Expired - Fee Related CN202757687U (en) | 2012-07-04 | 2012-07-04 | Lcd brightness measurement device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202757687U (en) |
-
2012
- 2012-07-04 CN CN 201220319228 patent/CN202757687U/en not_active Expired - Fee Related
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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: 20130227 Termination date: 20140704 |
|
| EXPY | Termination of patent right or utility model |