CN106990933B - LCM color coordinate center value design algorithm and control method - Google Patents
LCM color coordinate center value design algorithm and control method Download PDFInfo
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- CN106990933B CN106990933B CN201710225495.1A CN201710225495A CN106990933B CN 106990933 B CN106990933 B CN 106990933B CN 201710225495 A CN201710225495 A CN 201710225495A CN 106990933 B CN106990933 B CN 106990933B
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/14—Digital output to display device ; Cooperation and interconnection of the display device with other functional units
- G06F3/1407—General aspects irrespective of display type, e.g. determination of decimal point position, display with fixed or driving decimal point, suppression of non-significant zeros
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Abstract
The invention discloses an LCM Color coordinate center value design algorithm and a control method, comprising a Color Filter and a BL moduleand an LED. The invention has the beneficial effects that: x calculated from data collected by Color Filter and BL moduleLED/YLEDThe method has the advantages that the W3 color block which the LED specification belongs to is found out through searching the LED specification, the corresponding color block coordinate can be quickly obtained through searching the LED specification, the searching is convenient, the W3 color block can be divided into 4 blocks to carry out LED mixed printing to reduce the color cast range, and the LCM coordinate exceeds the range required by a customer or the obtained X coordinate is out of the range required by the customerLED/YLEDThe color difference range can be reduced when the color difference is not at the center point of the W3 color block, the W3 color block is partitioned by taking the color coordinate of the center point LED as the reference, 1 or 2 small color blocks are taken for use and are partitioned and mixed, the LCM color coordinate range is reduced, and the LCM coordinate range is controlled.
Description
Technical Field
the invention relates to a design algorithm and a control method, in particular to an LCM color coordinate center value design algorithm and a control method, and belongs to the field of liquid crystal display modules.
Background
with the rapid development of liquid crystal display technology, liquid crystal terminal devices (mobile phones and the like) have higher and higher requirements on display effects. The requirements of zero color difference, high brightness and high color gamut of the LCD display module are a necessary trend of industrial technology. Highlight and high color gamut products have been achieved to a certain level by various methods in the industry, and then the confirmation of zero color difference among different products is difficult to achieve. The difference of LCD Color Filter process and the difference of backlight Color mainly affect the Color difference of the module, the difference range of white point Color coordinates between different products can be controlled within +/-0.03 in the conventional way under the condition of mass production in the industry at present, and the mass production is difficult to realize if the difference is controlled within +/-0.02 or even +/-0.015 at present.
disclosure of Invention
The invention aims to solve the problems and provide an LCM color coordinate center value design algorithm and a control method.
The invention realizes the purpose through the following technical scheme: an LCM color coordinate center value design algorithm and a control method comprise
A Color Filter for collecting data of the Color Filter (delta X/YLCD) of the LCD with the same model;
the BL module is used for collecting data of the backlight (delta X/YBL) of the same film material selection type;
the LED is used for displaying the acquired data after the acquired data is sleeved in the calculation formula;
The Color Filter is arranged above the BL module, the bottom of the Color Filter is connected with an LED, and the LED is attached to the BL module.
Further, the data collected by the Color Filter and BL module is passed
XLCM＝XLED+ΔXBL+ΔXLCD
YLCM＝YLED+ΔYBL+ΔYLCD
Calculating X by formulaLED/YLED。
preferably, in order to quickly obtain corresponding Color block coordinates, the X obtained by calculating the data collected by the Color Filter and BL moduleLED/YLEDand finding the W3 color block by searching the LED specification.
Preferably, in order to reduce the color difference range, the W3 color blocks can be divided into 4 blocks to be subjected to LED mixing to reduce the color shift range.
Preferably, in order to narrow and control the LCM color coordinate range, the W3 color patches are partitioned based on the color coordinates of the center LED, and 1 or 2 small color patches are used and mixed in a partitioned manner.
An LCM color coordinate center value design algorithm and a control method are disclosed, the design algorithm and the control method comprise the following steps:
Step A, collecting data of Color filters (delta X/YLCD) of LCDs with the same model, and collecting data of backlights (delta X/YBL) of the same film material selection type to obtain two groups of data;
step B, embedding the data into the above calculation formula to obtain XLED/YLEDthen searching the LED color block of the coordinate of the corresponding LED specification to fall within the range of the W3 color block;
Step C, selecting a W3 color block for production, and substituting limit coordinates on four corners of the W3 color block into a calculation formula to obtain XLED/YLEDThe four limit coordinate values of (1) so as to judge whether the LED selecting the W3 color block can meet the LCM color coordinate range requirement of the client, and if the W3 color block can not meet the LC color coordinate range requirementWhen the tolerance requirement of the M color coordinate or the requirement of a customer is met, partitioning the W3 color blocks into four small color blocks, and mixing the small color blocks when the backlight light bar is used for printing LEDs;
And D, finally reducing the backlight color coordinate in a mixed mode, and reducing the LCM color coordinate range calculated in the same way, so that the LCM coordinate range is controlled.
The invention has the beneficial effects that: the LCM Color coordinate center value design algorithm and the control method are reasonable in design, and X obtained by calculating data collected by the Color Filter and the BL moduleLED/YLEDThe method has the advantages that the W3 color block which the LED specification belongs to is found out through searching the LED specification, the corresponding color block coordinate can be quickly obtained through searching the LED specification, the searching is convenient, the W3 color block can be divided into 4 blocks to carry out LED mixed printing to reduce the color cast range, and the LCM coordinate exceeds the range required by a customer or the obtained X coordinate is out of the range required by the customerLED/YLEDThe color difference range can be reduced when the color difference is not at the center point of the W3 color block, the W3 color block is partitioned by taking the color coordinate of the center point LED as the reference, 1 or 2 small color blocks are taken for use and are partitioned and mixed, the LCM color coordinate range is reduced, and the LCM coordinate range is controlled.
drawings
FIG. 1 is an exploded view of a liquid crystal display module according to the present invention;
FIG. 2 is a schematic diagram of the calculation of the LED/LCM coordinates of the structure of the present invention;
FIG. 3 is a schematic view of the shrinking principle of the structural color mixture block of the present invention;
Fig. 4 is a schematic diagram of the LED light bar assembly of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1 to 4, an LCM color coordinate center value design algorithm and a control method thereof include
a Color Filter for collecting data of the Color Filter (delta X/YLCD) of the LCD with the same model;
The BL module is used for collecting data of the backlight (delta X/YBL) of the same film material selection type;
the LED is used for displaying the acquired data after the acquired data is sleeved in the calculation formula;
the Color Filter is arranged above the BL module, the bottom of the Color Filter is connected with an LED, and the Color Filter and X obtained by data calculation collected by the BL moduleLED/YLEDFinding the W3 color block by searching the LED specification, quickly obtaining the corresponding color block coordinate by searching the LED specification, conveniently searching, attaching the LED to the BL module, dividing the W3 color block into 4 blocks for LED mixing to reduce the color cast range, and obtaining the X when the LCM coordinate exceeds the customer requirement range or the obtained X is the color cast rangeLED/YLEDThe color difference range can be reduced when the color difference is not at the center point of the W3 color block, the W3 color block is partitioned by taking the color coordinate of the center point LED as the reference, 1 or 2 small color blocks are taken for use and are partitioned and mixed, the LCM color coordinate range is reduced, and the LCM coordinate range is controlled.
Further, the data collected by the Color Filter and BL module is passed
XLCM＝XLED+ΔXBL+ΔXLCD
YLCM＝YLED+ΔYBL+ΔYLCD
calculating X by formulaLED/YLED。
An LCM color coordinate center value design algorithm and a control method are disclosed, the design algorithm and the control method comprise the following steps:
step A, collecting data of Color filters (delta X/YLCD) of LCDs with the same model, and collecting data of backlights (delta X/YBL) of the same film material selection type to obtain two groups of data;
Step B, embedding the data into the above calculation formula to obtain XLED/YLEDAnd further find the corresponding LED specification the LED color block of the coordinate falls in the range of W3 color block;
Step C, selecting a W3 color block for production, and substituting limit coordinates on four corners of the W3 color block into a calculation formula to obtain XLED/YLEDthe four limit coordinate values can judge whether the LED of the W3 color block can meet the LCM color coordinate range requirement of a customer, if the W3 color block cannot meet the LCM color coordinate tolerance requirement or the customer requirement, the W3 color block is partitioned into four small color blocks, and the small color blocks are mixed and overlapped when the backlight light bar is used for printing the LED;
And D, finally reducing the backlight color coordinate in a mixed mode, and reducing the LCM color coordinate range calculated in the same way, so that the LCM coordinate range is controlled.
example (b):
If the LCM color coordinate specification requested by the customer is set as:
XLCM＝0.30±0.02
YLCM＝0.32±0.02
Collecting data of Color Filter (delta X/YLCD) of LCD with same model, collecting data of backlight (delta X/YBL) of same film material selection type, and further obtaining two groups of data, wherein delta X is the data of Color Filter (delta X/YLCD) of LCD with same modelLCD＝0.015,ΔYLCD＝0.031,ΔXBL＝0.0045,ΔYBL0.0143. The data were fit into the above calculation:
XLCM＝XLED+ΔXBL+ΔXLCD
YLCM＝YLED+ΔYBL+ΔYLCD
To obtain XLED＝0.2805，YLED0.2747, and then finding the LED color block of the coordinate of the corresponding LED specification falls within the range of W3 color block. In this case, if the W3 color block is selected for production, the four extreme coordinates of XLCM/yclm can be obtained by substituting the extreme coordinates of the four corners of the W3 color block into the calculation formula, so as to determine whether the LED of the W3 color block can meet the color coordinate range requirement of the LCM of the client.
When the selected W3 color blocks cannot meet the LCM color coordinate tolerance requirement or a customer needs to reduce the LCM color coordinate tolerance to +/-0.015, the W3 color blocks are partitioned into four small color blocks, and the small color blocks are mixed and matched when the backlight light bar is used for lighting LEDs. The backlight particles have a mix-and-match pattern as shown in fig. 3,1+ 2,2+3,1+3,2+ 4. Assuming that the total number of the LEDs on the backlight is 9, the light particle combination actually welded to the backlight light bar is finally reduced to the red small-range area in fig. 4 by the blending method, and the LCM color coordinate range calculated in the same manner is also reduced. So that the LCM coordinate range is controlled.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (5)
1. An LCM color coordinate center value design algorithm and a control method are characterized in that: comprises that
The Color Filter is used for collecting data of LCDs of the same model;
The BL module is used for collecting data of the backlight of the same film material selection type;
The LED is used for displaying the acquired data after the acquired data is sleeved in the calculation formula;
the Color Filter is arranged above the BL module, the bottom of the Color Filter is connected with an LED, and the LED is attached to the BL module;
The design algorithm and the control method comprise the following steps:
A, collecting data of Color filters of LCDs of the same model, and collecting data of backlights of the same film material selection type to obtain two groups of data;
step B, embedding the data into the above calculation formula to obtain XLED/YLEDThen searching the LED color block of the coordinate of the corresponding LED specification to fall within the range of the W3 color block;
step C, selecting a W3 color block for production, and substituting limit coordinates on four corners of the W3 color block into a calculation formula to obtain XLED/YLEDthe four limit coordinate values can judge whether the LED of the W3 color block can meet the LCM color coordinate range requirement of a customer, if the W3 color block cannot meet the LCM color coordinate tolerance requirement or the customer requirement, the W3 color block is partitioned into four small color blocks, and the small color blocks are mixed and overlapped when the backlight light bar is used for printing the LED;
And D, finally reducing the backlight color coordinate in a mixed mode, and reducing the LCM color coordinate range calculated in the same way, so that the LCM coordinate range is controlled.
2. the LCM color coordinate center value design algorithm and the control method according to claim 1, wherein: data collected by the Color Filter and BL modules are passed through
XLCM＝XLED+ΔXBL+ΔXLCD
YLCM＝YLED+ΔYBL+ΔYLCD
calculating X by formulaLED/YLED。
3. the LCM color coordinate center value design algorithm and control method according to claim 1 or 2, wherein: x calculated by data collected by the Color Filter and BL moduleLED/YLEDBy looking atand finding out the color block of W3 according to the specification of the LED.
4. The LCM color coordinate center value design algorithm and control method according to claim 3, wherein: the W3 color block can be divided into 4 blocks to be mixed and beaten by LED to reduce the color cast range.
5. The LCM color coordinate center value design algorithm and control method according to claim 3, wherein: and the W3 color blocks are partitioned by taking the color coordinates of the central point LED as a reference, and 1 or 2 small color blocks are used and are partitioned and mixed.
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW201036456A (en) * | 2009-03-23 | 2010-10-01 | Chunghwa Picture Tubes Ltd | Image processing method capable of reducing color shift |
| CN102779498A (en) * | 2012-05-30 | 2012-11-14 | Tcl显示科技（惠州）有限公司 | Method and system for realizing white balance of liquid crystal display module |
| KR20130058264A (en) * | 2011-11-25 | 2013-06-04 | 엘지디스플레이 주식회사 | Liquid crystal display device |
| CN103354073A (en) * | 2013-06-13 | 2013-10-16 | 南京信息工程大学 | LCD color deviation correction method |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW201036456A (en) * | 2009-03-23 | 2010-10-01 | Chunghwa Picture Tubes Ltd | Image processing method capable of reducing color shift |
| KR20130058264A (en) * | 2011-11-25 | 2013-06-04 | 엘지디스플레이 주식회사 | Liquid crystal display device |
| CN102779498A (en) * | 2012-05-30 | 2012-11-14 | Tcl显示科技（惠州）有限公司 | Method and system for realizing white balance of liquid crystal display module |
| CN103354073A (en) * | 2013-06-13 | 2013-10-16 | 南京信息工程大学 | LCD color deviation correction method |
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