CN201413624Y - LED backlight LCD display system available for point-to-point alignment and display thereof - Google Patents
LED backlight LCD display system available for point-to-point alignment and display thereof Download PDFInfo
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- CN201413624Y CN201413624Y CN2009201424157U CN200920142415U CN201413624Y CN 201413624 Y CN201413624 Y CN 201413624Y CN 2009201424157 U CN2009201424157 U CN 2009201424157U CN 200920142415 U CN200920142415 U CN 200920142415U CN 201413624 Y CN201413624 Y CN 201413624Y
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Abstract
The utility model provides an LED backlight LCD display system available for point-to-point alignment and a display thereof, which are used for solving the problem of aligning the LED with attenuationin the display after an LED backlight LCD display is used for a period of time. The display system comprises the display and an LED photoreception device. The display comprises an LED backlight board; and the circuit part of the display comprises a central control unit, a storage unit, an LED power driving unit, a display detection interface unit and an LED backlight unit formed by a plurality ofLEDs, wherein the LED backlight unit is arranged on the LED backlight board of the display. The display detection interface unit, the storage unit and the LED power driving unit are all connected with the central control unit; and the central control unit comprises a detection information processing module used for processing detection information. The LED photoreception device comprises a lightacquisition unit and a photoreception device interface unit transmitting the detection information to the display.
Description
Technical field
The utility model relates to a kind of LCD display, particularly relates to a kind of LCD display of LED-backlit.
Background technology
The LCD display of LED-backlit is used widely.Use LED more backlight in the market and be blue-ray LED and send white light backlight as LCD display by exciting yellow fluorescent powder.Because the luminescence efficiency of each LED is all inequality, for when dispatching from the factory, obtaining common uniform luminance, after each LED is arranged at backlight, can utilize photometry side look instrument in the factory, each LED of side or respectively organize luminance brightness of all kinds and the colourity of LED respectively, and calculate by the requirement of backlight and colourity, the single point correction value of the LED that obtains is stored in the storer.When start was used, system's weighting drove each LED, when LED on the backlight is lighted, obtained identical colourity and brightness.
But above-mentioned straight shortcoming according to the formula backlight is that LED is after the long-term use of process, because external environment condition and a variety of causes, light intensity can decay, and the rate of decay of each LED is inconsistent, cause each the regional brightness and the colourity of backlight inhomogeneous, make quality backlight descend like this.
In patent documentation, as Chinese patent application number be 200610138957.8, name is called " light source cell that uses in the light-emitting device ", was the patent application document on March 28th, 2007 in open day that this patent application document provides a kind of light source that utilizes the red, green, blue three-color LED as backlight.Utilize the red, green, blue three-color LED to be that as the light source biggest advantage of backlight glow frequency is purer, its colour gamut contains extensively.The document has been put down in writing a kind of by detecting the backlight temperature, proofreading and correct the method for the output power of LED lamp by the power of adjusting a LED in the three-color LED, descends to prevent the backlight quality.Because what its detection part adopted is temperature sensor, it is influenced by ambient temperature very big, so its detection error ratio is bigger, and it is not the luminosity that directly detects LED, so this method and technical scheme thereof can not satisfy the technical need of superior performance.
Summary of the invention
First technical matters to be solved in the utility model is: but a kind of LED-backlit LCD display system of pointwise correction is provided, this display system carries out calibration problem to the LED that decay is arranged in the display with the LCD display that solves LED-backlit in use for some time.
But second technical matters to be solved in the utility model provides a kind of LED-backlit LCD display of pointwise correction, this display carries out calibration problem to the LED that decay is arranged in the display with the LCD display that solves LED-backlit in use for some time.
In order to solve above-mentioned first technical matters, but the utility model proposes a kind of LED-backlit LCD display system of pointwise correction, comprise display circuit; Display circuit comprises central control unit, the storage element that is connected with central control unit, the LED power drives unit that is connected with central control unit and the LED-backlit unit of being made up of a plurality of LED, described display system also comprises a LED photoreception device, and LED photoreception device comprises the light collection unit and transmits the photoreception device interface unit of detection information to described display; Described display circuit comprises that also a display that receives described photoreception device information detects interface unit, and display detects interface unit and is connected with described central control unit; Described central control unit comprises the detection message processing module that is used for handling detection information.
In order to solve above-mentioned second technical matters, but the utility model proposes a kind of LED-backlit LCD display of pointwise correction, comprise display circuit; Display circuit comprises central control unit, the storage element that is connected with central control unit, the LED power drives unit that is connected with central control unit and the LED-backlit unit of being made up of a plurality of LED, the LED-backlit arrangements of cells is on the LED-backlit plate of display, described display circuit comprises that also a display that receives described photoreception device information detects interface unit, and display detects interface unit and is connected with described central control unit; Described central control unit comprises the detection message processing module that is used for handling detection information.
Preferred version of the present utility model is: described LED photoreception device is preferably silicon photocell detector, also can be digital camera.Described silicon photocell detector can be made up of a silicon photocell piece, and the silicon photocell piece connects described photoreception device interface unit.The preferred version of described silicon photocell detector is: described silicon photocell detector comprise into array arrangement a plurality of silicon photocell pieces, be used to control the controller of all silicon photocell pieces, the silicon photocell piece all is connected with controller, and controller is connected with described photoreception device interface unit simultaneously.Each array element of the silicon photocell of above-mentioned array structure is as an independent optical detecting unit, a check point on its corresponding screen, each silicon photocell is issued controller with the optical information of the check point of collection and is handled, can realize that so disposable whole screen detects, detection efficiency is very high.If a silicon photocell detector has only a silicon photocell piece, its check point on can only screen of one-time detection so, efficient is much lower.
Preferred version of the present utility model is: described LED-backlit unit is made of a plurality of LED combination block, and each LED combination block is made of red, green, blue three-primary colours LED.The light source of the relative monochromatic LED excitated fluorescent powder of light source of the combination block that this three-color LED constitutes, glow frequency is purer, can provide the more picture of high-quality to the LCD screen.
Preferred version of the present utility model is: the formation of growing on silicon substrate of the LED on described LED-backlit plate, this is the multilayer semiconductor structure that a kind of LED that distributes on the LED-backlit plate is a vertical stratification.
The beneficial effects of the utility model are as follows:
Compared with prior art, the utility model has increased display and has detected interface unit on display circuit, this unit is made up of interface circuit and port, LED photoreception device is inserted on the above-mentioned port, gather the optical information of LCD screen by LED photoreception device and be defeated by central controller by above-mentioned port, central controller is according to the LED electrical quantity on the data message adjustment LED-backlit plate, make all LED on the LED-backlit plate can reach uniformity, simultaneously with the new electrical quantity information stores of each LED in storage unit, call when starting for display.This external photoreception device can directly obtain the optical parameter on the LCD display, and in prior art, obtain LED decay situation by indirect measurement temperature, the LED decay situation that such mode obtains is more accurate, calibration result to LED is better, and the quality of the LCD display after the correction is also better.And the mode of this external light signal collection device, can not increase the LCD display circuit structure significantly, can proofread and correct display at any time as required, handled easily, an external photoreception device proofreaies and correct for some displays, and the utility model provides the maintenance scheme that makes things convenient for cheapness for display enterprise.
Description of drawings
Fig. 1 is the circuit theory diagrams of the utility model embodiment one.
Fig. 2 is the photoreception schematic representation of apparatus that the utility model silicon photocell is array structure.
Fig. 3 is the circuit theory diagrams of the utility model embodiment two.
Embodiment
But the LED-backlit LCD display system of the pointwise correction that the utility model provides.Wherein display can be a TV, also can be display devices such as computer monitor.Embodiment one is circuit theory diagrams as shown in Figure 1, and this display system mainly is made of display and external LED photoreception device, shown in two frame of broken lines among 1 figure.
Among Fig. 1, the display circuit of the LCD display of LED-backlit comprises central control unit, the storage element that is connected with central control unit, the LED power drives unit that is connected with central control unit and the LED-backlit unit of being made up of a plurality of LED.The LED-backlit arrangements of cells is on the LED-backlit plate of display.
Be distributed with a plurality of LED combination block on the LED-backlit plate by red, green, blue three-color LED synthesize white light.LED has the multilayer semiconductor structure of vertical stratification, and growth forms on silicon substrate.
Display system also comprises a LED photoreception device.LED photoreception device comprises the light collection unit and transmits the photoreception device interface unit of detection information to display.Display circuit comprises that a display that receives the photoreception device information detects interface unit, and photoreception device interface unit is connected with central control unit; Central control unit comprises the detection message processing module that is used for handling detection information.
The photoreception device can be a silicon photocell detector.A silicon photocell detector is made up of a silicon photocell piece as the light collection unit, and the silicon photocell piece connects a photoreception device interface, detects separately.
During use, earlier with silicon photocell detector and display to connecting, light LCD display and make it enter detected state.When display enters detected state, each LED on the backlight starts luminous in order separately, can form a hot spot at the LCD screen surfaces this moment, the hand-held silicon photocell detector of operating personnel is gathered the optical information that the LED of that startup sends according to facula position at the LCD screen surfaces, the optical information that collects is inputed to the central control unit of display by interface, handle by the detection message processing module in it, produce the correction parameter information of current LED, deposit memory module in.After treating that operating personnel have detected LED all on the backlight, will form the correction electrical quantity information of a new LED-backlit unit in storage unit, this parameter can be to replace the original electrical quantity information of all LED on the backlight, also can be the weighted information on original electrical quantity information.Detecting message processing module can realize by software.It can adjust to the LED that attenuation change takes place original brightness and color standard, also can collect on the backlight behind all LED, according to the average attenuation situation, all LED are reset new electrical quantity, so that whole screen backlight is luminous evenly, coordination.
After forming, the new information of all LED on the backlight promptly finishes whole pointwise proof-reading.The detected state that withdraws from display then enters normal operating conditions.When entering normal operating conditions, display can initiatively be written into new LED electrical quantity information.
If a silicon photocell detector has only a silicon photocell piece, its check point on can only screen of one-time detection so, efficient is much lower.
The utility model proposes a kind of improved silicon photocell detector.Embodiment two is referring to Fig. 2 and Fig. 3, this detector mainly by a plurality of silicon photocell pieces 1 that become array arrangement as the light collection unit, the controller that is used to control all silicon photocell pieces constitutes with the photoreception device interface unit that is connected with display, all silicon photocell pieces all are connected with controller.The silicon photocell piece 1 of above-mentioned array structure is as an independent optical detecting unit, a check point on its corresponding screen, each silicon photocell is issued controller with the optical information of the check point of collection and is handled, and can realize that so disposable whole screen detects, and detection efficiency is very high.
In addition, LED photoreception device of the present utility model can also be common digital camera.To detect blue light is example, during use, earlier display is arranged on the correct detection state, open all blue lights, take pictures with digital camera, photographic intelligence is by in the interface input display, after the processor in the display is handled the data of the luminous point on the photograph, draw the correction result, blue-ray LED is proofreaied and correct; Close blue light then, open all ruddiness, carry out ruddiness in the manner described above and proofread and correct, and then green glow is proofreaied and correct.
Display detects interface unit and photoreception device interface unit, can connect by the mode that public connector docks female connectors; In case of necessity, display detection interface unit and photoreception device interface unit can link together by data line.Except LED photoreception device directly with display is connected, the intermediary that can also use computer to connect as their, be about to LED photoreception device and display and all be connected on the computer, the specific software on the computer provides LED photoreception device and monitor information control and transmission plan.
Claims (9)
1, but a kind of LED-backlit LCD display system of pointwise correction comprises display circuit; Display circuit comprises central control unit, the storage element that is connected with central control unit, the LED power drives unit that is connected with central control unit and the LED-backlit unit of being made up of a plurality of LED, it is characterized in that: described display system also comprises a LED photoreception device, and LED photoreception device comprises the light collection unit and transmits the photoreception device interface unit of detection information to described display; Described display circuit comprises that also a display that receives described photoreception device information detects interface unit, and display detects interface unit and is connected with described central control unit; Described central control unit comprises the detection message processing module that is used for handling detection information.
But 2, the LED-backlit LCD display system of pointwise correction according to claim 1 is characterized in that: described LED photoreception device is silicon photocell detector or digital camera.
But 3, the LED-backlit LCD display system of pointwise correction according to claim 1, it is characterized in that: described LED-backlit unit is made of a plurality of LED combination block, and each LED combination block is made of red, green, blue three-primary colours LED.
But 4, the LED-backlit LCD display system of pointwise correction according to claim 1, it is characterized in that: described LED photoreception device is a silicon photocell detector, described silicon photocell detector is made up of a silicon photocell piece, and the silicon photocell piece connects described photoreception device interface unit.
But 5,, it is characterized in that: be included in the LED that growth forms on the silicon substrate on the described LED-backlit unit according to the LED-backlit LCD display system of each described pointwise correction of claim 1 to 4.
But 6, the LED-backlit LCD display system of pointwise correction according to claim 2, it is characterized in that: described silicon photocell detector comprise into array arrangement a plurality of silicon photocell pieces, be used to control the controller of all silicon photocell pieces, the silicon photocell piece all is connected with controller, and controller is connected with described photoreception device interface unit simultaneously.
7, but a kind of LED-backlit LCD display of pointwise correction comprises display circuit; Display circuit comprises central control unit, the storage element that is connected with central control unit, the LED power drives unit that is connected with central control unit and the LED-backlit unit of being made up of a plurality of LED, the LED-backlit arrangements of cells is on the LED-backlit plate of display, it is characterized in that: described display circuit comprises that also a display that receives described photoreception device information detects interface unit, and display detects interface unit and is connected with described central control unit; Described central control unit comprises the detection message processing module that is used for handling detection information.
But 8, the LED-backlit LCD display of pointwise correction according to claim 7 is characterized in that: described LED-backlit unit is made of a plurality of LED combination block, and each LED combination block is made of red, green, blue three-primary colours LED.
But 9,, it is characterized in that: be included in the LED that growth forms on the silicon substrate on the described LED-backlit unit according to the LED-backlit LCD display of each described pointwise correction in claim 7 or 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201424157U CN201413624Y (en) | 2009-04-17 | 2009-04-17 | LED backlight LCD display system available for point-to-point alignment and display thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201424157U CN201413624Y (en) | 2009-04-17 | 2009-04-17 | LED backlight LCD display system available for point-to-point alignment and display thereof |
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| CN201413624Y true CN201413624Y (en) | 2010-02-24 |
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| CN2009201424157U Expired - Fee Related CN201413624Y (en) | 2009-04-17 | 2009-04-17 | LED backlight LCD display system available for point-to-point alignment and display thereof |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101923820A (en) * | 2010-07-27 | 2010-12-22 | 深圳市中庆微科技开发有限公司 | LED display screen spot-spot correction system with master-slave mode |
| CN101950515A (en) * | 2010-08-20 | 2011-01-19 | 深圳市中庆微科技开发有限公司 | Master-slave point-by-point correcting method for LED display screen |
| CN102074179A (en) * | 2011-03-04 | 2011-05-25 | 南京洛普股份有限公司 | LED display screen point-by-point correction system and LED display screen point-by-point correction method |
| CN102290029A (en) * | 2011-05-19 | 2011-12-21 | 深圳市中庆微科技开发有限公司 | Drive chip with point-by-point adjustment function |
| CN103413526A (en) * | 2013-08-19 | 2013-11-27 | 西安诺瓦电子科技有限公司 | Correction method for LED lamp panel of LED display screen |
| CN110189719A (en) * | 2019-05-30 | 2019-08-30 | 重庆蓝岸通讯技术有限公司 | Built-in LTPS display panel pixel point monitors system |
-
2009
- 2009-04-17 CN CN2009201424157U patent/CN201413624Y/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101923820A (en) * | 2010-07-27 | 2010-12-22 | 深圳市中庆微科技开发有限公司 | LED display screen spot-spot correction system with master-slave mode |
| CN101923820B (en) * | 2010-07-27 | 2016-01-20 | 深圳市中庆微科技开发有限公司 | A kind of LED display point-to-point correction system of master slave mode |
| CN101950515A (en) * | 2010-08-20 | 2011-01-19 | 深圳市中庆微科技开发有限公司 | Master-slave point-by-point correcting method for LED display screen |
| CN102074179A (en) * | 2011-03-04 | 2011-05-25 | 南京洛普股份有限公司 | LED display screen point-by-point correction system and LED display screen point-by-point correction method |
| CN102290029A (en) * | 2011-05-19 | 2011-12-21 | 深圳市中庆微科技开发有限公司 | Drive chip with point-by-point adjustment function |
| CN102290029B (en) * | 2011-05-19 | 2015-11-04 | 深圳市中庆微科技开发有限公司 | A kind of driving chip of pointwise adjustment |
| CN103413526A (en) * | 2013-08-19 | 2013-11-27 | 西安诺瓦电子科技有限公司 | Correction method for LED lamp panel of LED display screen |
| CN103413526B (en) * | 2013-08-19 | 2015-08-05 | 西安诺瓦电子科技有限公司 | The correction method for LED lamp panel of LED display |
| CN110189719A (en) * | 2019-05-30 | 2019-08-30 | 重庆蓝岸通讯技术有限公司 | Built-in LTPS display panel pixel point monitors system |
| CN110189719B (en) * | 2019-05-30 | 2021-03-02 | 重庆蓝岸通讯技术有限公司 | Built-in LTPS display panel pixel point monitoring system |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: LED backlight LCD display system available for point-to-point alignment and display thereof Effective date of registration: 20110316 Granted publication date: 20100224 Pledgee: Agricultural Bank of China, Limited by Share Ltd, Nanchang hi tech sub branch Pledgor: Lattice Power (Jiangxi) Co., Ltd. Registration number: 2011990000081 |
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| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20131010 Granted publication date: 20100224 Pledgee: Agricultural Bank of China, Limited by Share Ltd, Nanchang hi tech sub branch Pledgor: Lattice Power (Jiangxi) Co., Ltd. Registration number: 2011990000081 |
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| PLDC | Enforcement, change and cancellation of contracts on pledge of patent right or utility model | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: LED backlight LCD display system available for point-to-point alignment and display thereof Effective date of registration: 20150320 Granted publication date: 20100224 Pledgee: Export Import Bank of China Pledgor: Lattice Power (Jiangxi) Co., Ltd. Registration number: 2015990000219 |
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| PLDC | Enforcement, change and cancellation of contracts on pledge of patent right or utility model | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20160829 Granted publication date: 20100224 Pledgee: Export Import Bank of China Pledgor: Lattice Power (Jiangxi) Co., Ltd. Registration number: 2015990000219 |
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| PLDC | Enforcement, change and cancellation of contracts on pledge of patent right or utility model | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100224 Termination date: 20180417 |
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| CF01 | Termination of patent right due to non-payment of annual fee |