CN102478430B - Light color determination method of light-emitting diode - Google Patents
Light color determination method of light-emitting diode Download PDFInfo
- Publication number
- CN102478430B CN102478430B CN201010590889.5A CN201010590889A CN102478430B CN 102478430 B CN102478430 B CN 102478430B CN 201010590889 A CN201010590889 A CN 201010590889A CN 102478430 B CN102478430 B CN 102478430B
- Authority
- CN
- China
- Prior art keywords
- component
- interval range
- maximal value
- time
- green
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Abstract
The invention discloses a light color determination method of a light-emitting diode, which comprises the following steps: setting photosensitive area and photosensitive time of a sensing element according to area parameters and time parameters; receiving light rays by using the sensing element to acquire a first red component, a first green component and a first blue component; comparing the magnitude of the first red component, the first green component and the first blue component to acquire a maximum value; when the maximum value is within a first interval range or second interval range, carrying out a compensation process to output a second red component, a second green component and a second blue component; carrying out a format conversion process on the second red component, the second green component and the second blue component to acquire a color value; and judging whether the color value is within an expected range to output a result signal. Therefore, the method can enhance probability for correctly determining the light color.
Description
Technical field
The present invention relates to a kind of decision method of glow color, relate in particular to a kind of color determination method of light emitting diode.
Background technology
Along with continually developing of light emitting diode, the briliancy of light emitting diode or serviceable life significantly improve, and it is progressively replacing traditional lighting element.With the original electroluminescence (Electroluminescent of LED backlight replacement hand-held device, EL) backlight, cold cathode fluorescent lamp (Cold Cathode Fluorescent Lamps, CCFL) backlight, not only circuit design is more easily succinct, and has higher outer the being subject to property of resisting strenuously.Replace the original cold cathode fluorescent lamp of liquid crystal display by LED backlight backlight, not only more environmental protection but also demonstration are more true to nature beautiful.Replace the illumination such as white light, Halogen lamp LED with LED lighting, not only brighter power saving, term of life is also longer, and it is faster to light speed, also can reduce rear car overtaking collision rate during for brake light.Except the application of illumination, most electronic product also all adopts light emitting diode as pilot lamp, and for example motherboard, display card and network card also have light emitting diode lamp, are used to refer to the duty of circuit board.
The test of light emitting diode is all to adopt manual type all the time, manual testing's shortcoming is easily because fatigue and the subjective factor of vision, can produce the larger error rate of distinguishing, and cannot judge more accurately the color of brightness and light emitting diode.
For addressing the above problem, existing dealer proposes to utilize light-emitting diode detection device to replace manual testing, but the light sending due to light emitting diode is non-linear (light that is multiple wave band is formed), and light-emitting diode detection device cannot be judged more accurately the color of light emitting diode in test process.
Summary of the invention
Technical matters to be solved by this invention is to provide a kind of color determination method of light emitting diode, to solve the existing problem of prior art, and improves light-emitting diode detection device the color of light emitting diode is judged more accurately.
According to an embodiment of the color determination method of the disclosed light emitting diode of the present invention, the color determination method of light emitting diode comprises: the time of a) setting photosensitive area with the photosensitive area reception light of sensitive element with area parameters and time parameter; B) receive light by sensitive element and obtain the first red component, the first green component and the first blue component; C) compare the size of the first red component, the first green component and the first blue component and obtain maximal value; D) judge that maximal value is whether in the first interval range or the second interval range, wherein the first interval range is for being greater than hexadecimal 0xF2, and the second interval range is for being more than or equal to hexadecimal 0x47 and being less than or equal to hexadecimal 0x4c; In the time that maximal value is in the first interval range or the second interval range, compensates process and export the second red component, the second green component and the second blue component; The second red component, the second green component and the second blue component are carried out to format conversion process and obtain color-values; And judge that color-values is whether in desired extent and output result signal; And e) judge that this maximal value is in one the 3rd interval range or one the 4th interval range, and wherein the 3rd interval range is for being more than or equal to 0x00 and being less than 0x47, and the 4th interval range is for being greater than 0x4c and being less than or equal to 0xF2; In the time that this maximal value is in the 3rd interval range, output one failure signal; And in the time that this maximal value is in the 4th interval range, this first red component, this first green component and this first blue component carry out this format conversion process and obtain this color-values, and judge that this color-values is whether in this desired extent and export this consequential signal.
Wherein, judging that this maximal value is whether after the step in this first interval range or this second interval range, the color determination method of this light emitting diode more comprises: in the time that this maximal value is not in this first interval range or this second interval range, again receive this area parameters and this time parameter; In the time again receiving this area parameters and this time parameter, increase the size of a count parameter; Judge that this count parameter is less than or equal to a pre-determined number; In the time that this count parameter is less than this pre-determined number, judge that this maximal value is whether in this first interval range or this second interval range; When this count parameter is less than this pre-determined number and this maximal value in this first interval range or this second interval range time, this maximal value is carried out this compensation process and is exported this second red component, this second green component and this second blue component; In the time that this count parameter equals this pre-determined number, judge that this maximal value is whether in this first interval range or this second interval range; And equaling this pre-determined number and this maximal value not in this first interval range or this second interval range time when this count parameter, this first red component, this first green component and this first blue component carry out this format conversion process and obtain this color-values.
Wherein, this compensation process comprises: judge that this maximal value is in this first interval range or this second interval range; In the time that this maximal value is in this first interval range, this first red component, this first green component and this first blue component reduce respectively by one first predetermined value and export this second red component, this second green component and this second blue component, wherein this first predetermined value be less than or equal to this peaked 8 percent; In the time that this maximal value is in this second interval range, judgement has or not reception one quantity parameter; When this maximal value is in this second interval range and while not receiving this quantity parameter, this maximal value adds one second predetermined value and exports this second red component, this second green component and this second blue component, wherein this second predetermined value be less than or equal to this peaked 8 percent; When this maximal value is in this second interval range, when receiving this quantity parameter and this first red component and being not equal to this first green component, this first red component adds metric five and export this second red component, this first green component adds metric five and export this second green component, and this first blue component equals this second blue component; And when this maximal value is in this second interval range, when receiving this quantity parameter and this first red component and equaling this first green component, this first red component adds metric seven and export this second red component, this first green component adds metric five and export this second green component, and this first blue component equals this second blue component.
According to the color determination method of the disclosed light emitting diode of the present invention, can correctly judge in order to improve light-emitting diode detection device the probability of glow color.By adjusting suitable area parameters and time parameter, to avoid the too large or too little erroneous judgement that causes light-emitting diode detection device of brightness because of light.Can more approach desired extent by making to carry out the color-values that format conversion process exports by compensation process, to improve the judgement of glow color.
Describe the present invention below in conjunction with the drawings and specific embodiments, but not as a limitation of the invention.
Accompanying drawing explanation
Fig. 1 is an example structure schematic diagram of the light-emitting diode detection device of the color determination method of the disclosed light emitting diode of application the present invention.
Fig. 2 is the first embodiment schematic flow sheet according to the color determination method of the disclosed light emitting diode of the present invention.
Fig. 3 is the compensation process one embodiment schematic flow sheet according to the step 208 of Fig. 2.
Fig. 4 is the second embodiment schematic flow sheet according to the color determination method of the disclosed light emitting diode of the present invention.
Fig. 5 is the 3rd embodiment schematic flow sheet according to the color determination method of the disclosed light emitting diode of the present invention.
Wherein, Reference numeral:
50: light emitting diode
100: light-emitting diode detection device
102: LED socket
104: sensitive element
106: optical fiber
108: controller
Embodiment
Please refer to Fig. 1, is an example structure schematic diagram of the light-emitting diode detection device of the color determination method of application the present invention disclosed light emitting diode.In the present embodiment, light-emitting diode detection device 100 includes at least one LED socket 102, at least one sensitive element 104, at least one optical fiber 106 and controller 108.Wherein LED socket 102 is in order to the light emitting diode 50 of pegging graft, and controller 108 is electrically connected to LED socket 102 with sensitive element 104 and in order to control light emitting diode 50 and sensitive element 104.The light (not indicating) that light emitting diode 50 sends is received and sensing by sensitive element 104 through optical fiber 106.
Please refer to Fig. 1 and Fig. 2, Fig. 2 is the first embodiment schematic flow sheet according to the color determination method of the disclosed light emitting diode of the present invention.The color determination method of light emitting diode comprises:
Step 202: the time of setting photosensitive area and the photosensitive area reception light of sensitive element with area parameters and time parameter;
Step 204: receive light by sensitive element and obtain the first red component, the first green component and the first blue component;
Step 206: the relatively size of the first red component, the first green component and the first blue component and obtain maximal value;
Step 208: judge that maximal value is whether in the first interval range or the second interval range, wherein the first interval range is for being greater than hexadecimal 0xF2, and the second interval range is for being more than or equal to hexadecimal 0x47 and being less than or equal to hexadecimal 0x4c;
Step 210: in the time that maximal value is in the first interval range or the second interval range, compensates process and export the second red component, the second green component and the second blue component;
Step 212: the second red component, the second green component and the second blue component are carried out to format conversion process and obtain color-values; And
Step 214: judge that color-values is whether in desired extent and output result signal.
In above-mentioned steps 202, controller 108 is set the photosensitive area of sensitive element 104 with area parameters, wherein photosensitive area can be but be not limited to whole photosensitive area 50 25 percent, percent, 75 percent or absolutely.Controller 108 time parameters can be in order to set the time of above-mentioned photosensitive area received light line, wherein the time of photosensitive area received light line can be but is not limited to 3 rank, 5 rank, 7 rank, 9 rank, 11 rank or 13 rank, every single order can be but is not limited to 0.001 second, but the present embodiment is not in order to limit the present invention.Should be noted, area parameters is relevant with the light that setting and the light emitting diode 50 of time parameter send.For example, the brightness of ruddiness is less, and the required photosensitive area of sensitive element 104 is larger, and the time of photosensitive area received light line is longer; The brightness of green glow is larger, and the required photosensitive area of sensitive element 104 is less, and the time of photosensitive area received light line is shorter.
In step 204, sensitive element 104 utilizes photosensitive area and the time set to receive light and obtain the first red component, the first green component and the first blue component.Should be noted, the scope of the first red component can be but is not limited to hexadecimal 0x00 to 0xFF(is metric 0 to 255), the scope of the first green component can be but is not limited to hexadecimal 0x00 to 0xFF, the scope of the first blue component can be but is not limited to hexadecimal 0x00 to 0xFF, and actual the first red component, the first green component are relevant with the light that actual sensitive element 104 sensing light emitting diodes 50 send with the first blue component system.
Please refer to Fig. 1 and Fig. 3, Fig. 3 is the embodiment schematic flow sheet according to compensation process in the step 210 of Fig. 2.Compensation process comprises:
Step 302: judge that maximal value is in the first interval range or the second interval range;
Step 304: in the time that maximal value is in the first interval range, the first red component, the first green component and the first blue component reduce respectively by the first predetermined value and export the second red component, the second green component and the second blue component, and wherein the first predetermined value is less than or equal to peaked 8 percent;
Step 306: in the time that maximal value is in the second interval range, judgement has or not received quantity parameter;
Step 308: when maximal value is in the second interval range and not when received quantity parameter, maximal value adds the second predetermined value and exports the second red component, the second green component and the second blue component, and wherein the second predetermined value is less than or equal to peaked 8 percent;
Step 310: when maximal value is in the second interval range and when received quantity parameter, judge whether the size of the first red component equals the size of the first green component;
Step 312: when maximal value is in the second interval range, when received quantity parameter and the first red component are not equal to the first green component, the first red component add metric five and output the second red component, the first green component add metric five and output the second green component, the first blue component equals the second blue component; And
Step 314: when maximal value is in the second interval range, when received quantity parameter and the first red component equal the first green component, the first red component add metric seven and output the second red component, the first green component add metric five and output the second green component, the first blue component equals the second blue component.
The first predetermined value of above-mentioned steps 304 can be but is not limited to metricly 16, can adjust according to actual demand.Should be noted, the first predetermined value when larger, represents that the second red component, the second green component and the second blue component are less, that is to say, the brightness of light diminishes.In other words, due to maximal value, in the first interval range, (the first red component, the first green component and the first blue component are larger, the brightness that represents light is larger), the large erroneous judgement that may cause sensitive element 104 of brightness, so utilize the first red component, the first green component and the first blue component to reduce the mode (being the adjustment of GTG) of the first default value simultaneously, the probability that brightness can be diminished to reduce on the one hand erroneous judgement, can not affect measurement result on the other hand.
Above-mentioned steps 308 is applicable to the monochromatic light (not accepting quantity parameter) of dark (being that maximal value is in the second interval range) of brightness of light, such as but not limited to ruddiness, green glow or blue light.Can add respectively the second predetermined value by the first red component, the first green component and the first blue component, increase on the one hand the brightness of light to reduce the probability of erroneous judgement, can not affect on the other hand measurement result.The second above-mentioned predetermined value can be but is not limited to metricly five, can adjust according to actual demand.
Above-mentioned steps 312 and step 314 are applicable to the bi-coloured light of dark (being that maximal value is in the second interval range) (accept quantity parameter, be namely made up of the second colors of appointing in red, green and blueness) of brightness of light, such as but not limited to amber.For example, when light is while being amber, need first judge the first red component whether identical with the first green component (being step 310).When the first red component performs step 312 from the first green component when different, when the first red component performs step 314 with the first green component when identical, but the present embodiment is not in order to limit the present invention.
In step 212, format conversion process is for utilizing the second red component, the second green component and the second blue component to obtain color-values after the conversion of HSB formula, and color-values can be zero to 360 deg.Wherein, HSB formula is as follows:
Wherein, H is color-values, and r is the second red component, g is the second green component, b is the second blue component, and max is the maximal value in the second red component, the second green component and the second blue component, and min is the minimum value in the second red component, the second green component and the second blue component.That is to say, in the time that the second red component, the second green component equal minimum value (the second red component, the second green component equate with the second blue component, i.e. coincidence formula (1)) with the maximal value in the second blue component, color-values is zero degree.When the maximal value in the second red component, the second green component and the second blue component is the second red component and the second green component when being greater than and equaling the second blue component, color-values meets above-mentioned formula (2).When the maximal value in the second red component, the second green component and the second blue component is the second red component and the second green component while being less than the second blue component, color-values meets above-mentioned formula (3).In the time that the maximal value in the second red component, the second green component and the second blue component is the second green component, color-values meets above-mentioned formula (4).In the time that the maximal value in the second red component, the second green component and the second blue component is the second blue component, color-values meets above-mentioned formula (5).
Desired extent described in above-mentioned steps 214 is the color-values scope of solid color, for example, redness can be but is not limited to zero degree to ten two degree to be spent to 360 deg (360 deg is zero degree) with 330, green can be but is not limited to 90 degree to 150 degree, blueness can be but is not limited to 210 degree to two degrees, amberly can be but be not limited to the scopes of 13 degree to 60 degree, but the present embodiment is not in order to limit the present invention.In the time that color-values is in desired extent, the consequential signal of output can be into function signal (light emitting diode 50 is qualified), and in the time that color-values is in desired extent, the consequential signal of output can be failure signal (light emitting diode 50 is defective).The way of output of consequential signal can be but is not limited to utilize the external display unit of light-emitting diode detection device 100 (not drawing) to show.That is to say, the way of output of consequential signal also can be utilizes the external voice unit (VU) of light-emitting diode detection device 100 (not drawing) to carry out the prompting of sound.Should be noted, desired extent is the scope setting before light-emitting diode detection device 100 is measured.
Please refer to Fig. 1 and Fig. 4, Fig. 4 is the second embodiment schematic flow sheet according to the color determination method of the disclosed light emitting diode of the present invention.The color determination method of the light emitting diode of the present embodiment, except the flow process of above-mentioned the first embodiment, more can comprise:
Step 402: in the time that maximal value is not in the first interval range or the second interval range, receiving area parameter and time parameter again;
Step 404: in the time of receiving area parameter again and time parameter, increase the size of count parameter;
Step 406: judge that count parameter is less than or equal to pre-determined number;
Step 408: in the time that count parameter is less than pre-determined number, judge that maximal value is whether in the first interval range or the second interval range;
Step 410: when count parameter is less than pre-determined number and maximal value in the first interval range or the second interval range time, maximal value compensates process and exports the second red component, the second green component and the second blue component;
Step 412: in the time that count parameter equals pre-determined number, judge that maximal value is whether in the first interval range or the second interval range; And
Step 414: when count parameter equals pre-determined number and maximal value not in the first interval range or the second interval range time, the first red component, the first green component and the first blue component carry out format conversion process and obtain color-values.
Above-mentioned steps 402 can be but be not limited to zero with the initial value of the count parameter described in step 404, in the time that receiving area parameter is with time parameter again, count parameter can be increased to one, but the present embodiment is not in order to limit the present invention.Pre-determined number described in above-mentioned steps 406 can be but is not limited to the product of the quantity of all area parameters that set and the quantity of all time parameters that set.In other words,, in the time that maximal value is not in the first interval range or the second interval range, light-emitting diode detection device 100 can receive new area parameters and time parameter always again.After light-emitting diode detection device 100 sends all available parameters light to light emitting diode 50 is measured, the maximal value that controller 108 obtains is not still in the first interval range or the second interval range time, and controller 108 carries out the first red component, the first green component and the first blue component format conversion process and obtains color-values.
Please refer to Fig. 1 and Fig. 5, Fig. 5 is the 3rd embodiment schematic flow sheet according to the color determination method of the disclosed light emitting diode of the present invention.The color determination method of the light emitting diode of the present embodiment is except the flow process of above-mentioned the first embodiment, judging that maximal value is whether in the first interval range or the second interval range after (being step 208), the color determination method of light emitting diode more can comprise:
Step 502: judge that maximal value is in the 3rd interval range or the 4th scope, wherein the 3rd interval range is for being more than or equal to 0x00 and being less than 0x47, and the 4th interval range is for being greater than 0x4c and being less than or equal to 0xF2;
Step 504: in the time that maximal value is in the 3rd interval range, output failure signal; And
Step 506: in the time that maximal value is in the 4th interval range, the first red component, the first green component and the first blue component carry out format conversion process and obtain color-values, and judge that color-values is whether in desired extent and output result signal.
In step 504, because maximal value is when the 3rd interval range, sensitive element 104 almost sensing, less than the brightness of light, does not therefore need to carry out any step again and can judge that light emitting diode 50 is defective, to reduce the test duration.
In step 506, because maximal value is when the 4th interval range, sensitive element 104 can be correct the state that senses light, therefore can directly the first red component, the first green component and the first blue component be carried out to format conversion process and judge that color-values is whether in desired extent.
Above-described embodiment is that light-emitting diode detection device 100 can be found suitable area parameters and time parameter in all area parameters and time parameter, to avoid the too large or too little erroneous judgement that causes light-emitting diode detection device 100 of brightness because of light, but the present embodiment is not in order to limit the present invention.That is to say, before execution step 202, area parameters and the time parameter that can first preset many groups carry out determination flow afterwards, and wherein area parameters and the time parameters of many groups meet the condition that can correctly judge most of light emitting diode emitted lights, with the time that avoids waste and judge.
According to the color determination method of the disclosed light emitting diode of the present invention, can correctly judge in order to improve light-emitting diode detection device the probability of glow color.By adjusting suitable area parameters and time parameter, to avoid the too large or too little erroneous judgement that causes light-emitting diode detection device of brightness because of light, the area parameters that wherein can first preset many groups and time parameter avoid waste time of judgement.In the time that the brightness of light cannot utilize area parameters and time parameter to be adjusted to preferably sensing result (being that maximal value is in the first interval range or in the second interval range), can the first red component in the brightness of light or light, the first green component and the first blue component be adjusted by compensation process, the color-values that makes to carry out format conversion process and export more approaches desired extent, to improve the judgement of glow color.In the time that maximal value is in the 3rd interval range, the exportable failure signal of light-emitting diode detection device, and do not need to carry out again any step to reduce the test duration.
Certainly; the present invention also can have other various embodiments; in the situation that not deviating from spirit of the present invention and essence thereof; those of ordinary skill in the art can make according to the present invention various corresponding changes and distortion, but these corresponding changes and distortion all should belong to the protection domain of the claims in the present invention.
Claims (3)
1. a color determination method for light emitting diode, is characterized in that, comprising:
A) receive time of a light with a photosensitive area of an area parameters and time setting parameter one sensitive element and this photosensitive area;
B) receive this light by this sensitive element and obtain one first red component, one first green component and one first blue component;
C) size of this first red component, this first green component and this first blue component and obtain a maximal value relatively;
D) judge that this maximal value is whether in one first interval range or one second interval range, wherein this first interval range is for being greater than hexadecimal 0xF2, and this second interval range is for being more than or equal to hexadecimal 0x47 and being less than or equal to hexadecimal 0x4c; In the time that this maximal value is in this first interval range or this second interval range, carries out a compensation process and export one second red component, one second green component and one second blue component; This second red component, this second green component and this second blue component are carried out to a format conversion process and obtain a color-values; And judge that this color-values is whether in a desired extent and output one consequential signal; And
E) judge that this maximal value is in one the 3rd interval range or one the 4th interval range, wherein the 3rd interval range is for being more than or equal to 0x00 and being less than 0x47, and the 4th interval range is for being greater than 0x4c and being less than or equal to 0xF2; In the time that this maximal value is in the 3rd interval range, output one failure signal; And in the time that this maximal value is in the 4th interval range, this first red component, this first green component and this first blue component carry out this format conversion process and obtain this color-values, and judge that this color-values is whether in this desired extent and export this consequential signal.
2. the color determination method of light emitting diode according to claim 1, it is characterized in that, judging that this maximal value is whether after the step in this first interval range or this second interval range, the color determination method of this light emitting diode more comprises:
In the time that this maximal value is not in this first interval range or this second interval range, again receive this area parameters and this time parameter;
In the time again receiving this area parameters and this time parameter, increase the size of a count parameter;
Judge that this count parameter is less than or equal to a pre-determined number;
In the time that this count parameter is less than this pre-determined number, judge that this maximal value is whether in this first interval range or this second interval range;
When this count parameter is less than this pre-determined number and this maximal value in this first interval range or this second interval range time, this maximal value is carried out this compensation process and is exported this second red component, this second green component and this second blue component;
In the time that this count parameter equals this pre-determined number, judge that this maximal value is whether in this first interval range or this second interval range; And
When this count parameter equals this pre-determined number and this maximal value not in this first interval range or this second interval range time, this first red component, this first green component and this first blue component carry out this format conversion process and obtain this color-values.
3. the color determination method of light emitting diode according to claim 1, is characterized in that, this compensation process comprises:
Judge that this maximal value is in this first interval range or this second interval range;
In the time that this maximal value is in this first interval range, this first red component, this first green component and this first blue component reduce respectively by one first predetermined value and export this second red component, this second green component and this second blue component, wherein this first predetermined value be less than or equal to this peaked 8 percent;
In the time that this maximal value is in this second interval range, judgement has or not reception one quantity parameter;
When this maximal value is in this second interval range and while not receiving this quantity parameter, this maximal value adds one second predetermined value and exports this second red component, this second green component and this second blue component, wherein this second predetermined value be less than or equal to this peaked 8 percent;
When this maximal value is in this second interval range, when receiving this quantity parameter and this first red component and being not equal to this first green component, this first red component adds metric five and export this second red component, this first green component adds metric five and export this second green component, and this first blue component equals this second blue component; And
When this maximal value is in this second interval range, when receiving this quantity parameter and this first red component and equaling this first green component, this first red component adds metric seven and export this second red component, this first green component adds metric five and export this second green component, and this first blue component equals this second blue component.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010590889.5A CN102478430B (en) | 2010-11-30 | 2010-11-30 | Light color determination method of light-emitting diode |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010590889.5A CN102478430B (en) | 2010-11-30 | 2010-11-30 | Light color determination method of light-emitting diode |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102478430A CN102478430A (en) | 2012-05-30 |
| CN102478430B true CN102478430B (en) | 2014-05-21 |
Family
ID=46091142
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010590889.5A Active CN102478430B (en) | 2010-11-30 | 2010-11-30 | Light color determination method of light-emitting diode |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102478430B (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE202004006019U1 (en) * | 2004-04-16 | 2004-06-09 | GPS Prüftechnik mbH | Testing arrangement for light emitting diodes tests brightness and color by determining brightness and color signal using video camera and providing the signal to PC for processing |
| CN101471050A (en) * | 2007-12-27 | 2009-07-01 | 财团法人工业技术研究院 | System and method for stabilizing wavelength of led radiation in backlight module |
| CN101686590A (en) * | 2008-09-27 | 2010-03-31 | 比亚迪股份有限公司 | Led dynamic backlight source control algorithm |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100858379B1 (en) * | 2006-08-31 | 2008-09-11 | 엘지이노텍 주식회사 | Backlight unit driver and method for multi-sensing feedback control |
-
2010
- 2010-11-30 CN CN201010590889.5A patent/CN102478430B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE202004006019U1 (en) * | 2004-04-16 | 2004-06-09 | GPS Prüftechnik mbH | Testing arrangement for light emitting diodes tests brightness and color by determining brightness and color signal using video camera and providing the signal to PC for processing |
| CN101471050A (en) * | 2007-12-27 | 2009-07-01 | 财团法人工业技术研究院 | System and method for stabilizing wavelength of led radiation in backlight module |
| CN101686590A (en) * | 2008-09-27 | 2010-03-31 | 比亚迪股份有限公司 | Led dynamic backlight source control algorithm |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102478430A (en) | 2012-05-30 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US7479738B2 (en) | Drive circuit for light emitting diode | |
| US8203581B2 (en) | Method of LED dimming using ambient light feedback | |
| CN102017796B (en) | Light emitting diode system | |
| US20200382740A1 (en) | Mini led television control system and method | |
| US7312430B2 (en) | System, display apparatus and method for providing controlled illumination using internal reflection | |
| KR101295342B1 (en) | Smart electronic display control system and method for compensating luminance of led | |
| US20080103706A1 (en) | System and method for testing leds on a motherboard | |
| CN100582896C (en) | Display apparatus and control method thereof | |
| CN1917731A (en) | Calibrated led light module | |
| CN201141906Y (en) | LED test device | |
| CN101796886A (en) | Backlight unit and display apparatus | |
| US20100026193A1 (en) | LED Module with Dedicated Color Regulation and Corresponding Method | |
| CN102013234A (en) | Equipment for adjusting backlight brightness based on temperature detection in liquid crystal panel | |
| US20120105402A1 (en) | Method and system for adjusting light output from a light source | |
| CN101415282A (en) | Method and apparatus for regulating and checking lightness of light-emitting diode display panel | |
| CN106531065B (en) | A kind of parallel regulating system of one-to-many gamma curve and method | |
| CN201479427U (en) | Lighting rectification device of light-emitting diode module | |
| US20060256554A1 (en) | Light source system and control method of light source system | |
| CN102097046B (en) | Picture adjustment method, device and system | |
| CN102478430B (en) | Light color determination method of light-emitting diode | |
| US20090033688A1 (en) | Brightness adjusting method and device for an led-based display panel | |
| CN106128315A (en) | The energy-conservation mosaic screen of LED-backlit of a kind of Intelligent adjustment color and control method thereof | |
| WO2012058829A1 (en) | Light source module and backlight device | |
| KR20110138473A (en) | System for compensating luminance in led electronic display | |
| CN102572452A (en) | Method and device for adjusting color temperature of LED (Light Emitting Diode) liquid crystal television |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20191107 Address after: No. 592, Xingwang Road, high tech Zone, Bengbu City, Anhui Province Patentee after: Anhui love love Electromechanical Technology Co., Ltd. Address before: Taipei City, Taiwan, China Patentee before: Yingda Co., Ltd. |