CN110400532A - A kind of method and apparatus of quick adjustment gamma voltage - Google Patents
A kind of method and apparatus of quick adjustment gamma voltage Download PDFInfo
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- CN110400532A CN110400532A CN201810376148.3A CN201810376148A CN110400532A CN 110400532 A CN110400532 A CN 110400532A CN 201810376148 A CN201810376148 A CN 201810376148A CN 110400532 A CN110400532 A CN 110400532A
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- adjustment
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- grey menu
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/2007—Display of intermediate tones
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- Computer Hardware Design (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
Abstract
The invention discloses a kind of methods of quickly adjustment gamma voltage, applied to display panel, the following steps are included: the display panel is divided into the rectangular area N × N including at least two adjustment regions, wherein, N >=2, and any two adjustment region the rectangular area do not go together and different lines；Gamma voltage is provided to each adjustment region, make each adjustment region while showing corresponding different adjustment grey menu；Adjustment corresponds to the voltage of the adjustment grey menu, so that the flicker value of each grey menu is minimum；Judge that each brightness for adjusting grey menu in predetermined luminance threshold range, ties up voltage for current voltage value as the gamma of the adjustment grayscale.The present invention can debug simultaneously multiple grayscale in the one-time detection period and tie up a little, improve regulated efficiency, increase production capacity in addition, avoiding each picture measurement error due to caused by crosstalk and eliminate interference, improve debugging accuracy.
Description
Technical field
The invention belongs to display panel fields, and in particular to a kind of method and apparatus of quickly adjustment gamma voltage.
Background technique
The development of display technology is maked rapid progress, no matter liquid crystal display or (two pole of active matrix organic light-emitting AMOLED
Body) display, all toward large scale, more gorgeous color direction is developed, but because of display pannel design and processing procedure etc.
Deficiency, influence of the problem of pressure drop of display to display quality is more serious, and in the application of large size panel, problem is especially
It is prominent.
When large size panel factory shipment at present, in order to accomplish that gamma is 2.2, it will usually Auto-gamma technology is taken, from
Dynamic gamma adjustment equipment can all tie up grayscale according to the characteristic of respective drive IC when debugging to every piece of mould group a little to be adjusted
It is whole, it needs to detect during the adjustment and ties up the information such as flicker value, brightness a little to be adjusted, however, existing panel exists
A gamma can only be once adjusted when detecting and ties up voltage, and is had many grayscale in practical debugging process and tied up and a little need to adjust
Whole, repeatedly adjustment will increase adjustment time, take considerable time the production capacity reduction so as to cause producing line.
Summary of the invention
In order to solve the above-mentioned problems in the prior art, the present invention provides a kind of quickly adjustment gamma voltages
Method and apparatus.The technical problem to be solved in the present invention is achieved through the following technical solutions:
The embodiment of the invention provides a kind of methods of quickly adjustment gamma voltage, are applied to display panel, including following
Step:
The display panel is divided into the rectangular area N × N including at least two adjustment regions, wherein N >=2, and appoint
Two adjustment regions of anticipating the rectangular area do not go together and different lines；
Gamma voltage is provided to each adjustment region, make each adjustment region while showing that correspondence is different
Adjust grey menu；
Adjustment corresponds to the voltage of the adjustment grey menu, so that the flicker value of each grey menu is minimum；
The brightness of each adjustment grey menu is judged in predetermined luminance threshold range, using current voltage value as the tune
The gamma of whole grayscale ties up voltage.
In a specific embodiment, the rectangular area further includes background area, and it is black to show the background area
Color picture.
In a specific embodiment, the display panel includes 4 × 4 rectangular area.
In a specific embodiment, the different adjustment grey menu of the correspondence be 16 grey menus, 31 grey menus,
127 grey menus, 223 grey menus.
Present invention simultaneously provides the devices of quickly adjustment gamma a kind of, are applied to display panel, comprising: by the display
Panel is divided into the rectangular area N × N including at least two adjustment regions, and any two adjustment region is in the rectangle region
Domain do not go together and different lines；
Further include: gamma voltage control module, for generating the gamma voltage letter for corresponding to each adjustment region
Number, form corresponding display signal；
Signal input module connects the gamma voltage control module, for receiving the display signal, to the tune
Main plot domain inputs the corresponding display signal, makes each adjustment region while showing that corresponding different adjustment grayscale is drawn
Face；
At least two detection sensors are correspondingly arranged in the adjustment region, for detecting the adjustment region
The flicker value of corresponding adjustment grey menu；
The microcontroller connects at least two detection sensor, for receiving the flicker value, according to the sudden strain of a muscle
Bright value adjustment corresponds to the voltage of the adjustment grey menu, so that the flicker value of each grey menu is minimum；
When at least two detection sensor is also used to detect the flicker value minimum for making each adjustment grey menu,
The corresponding adjustment grey menu brightness value；
The microprocessor is also used to judge that each brightness value in predetermined luminance threshold range, incites somebody to action current electricity
Pressure value ties up voltage as the gamma of the grayscale, and stores the gamma and tie up voltage.
In a specific embodiment, the rectangular area further includes background area, and the background area shows that black is drawn
Face；
The gamma voltage control module is also used to generate the gamma voltage signal for corresponding to the black picture, and makes
The signal input module corresponds to the display signal of black picture to background area input, and keeps the background area aobvious
Show black picture.
In a specific embodiment, the display panel includes 4 × 4 rectangular area.
In a specific embodiment, the different adjustment grey menu of the correspondence be 16 grey menus, 31 grey menus,
127 grey menus, 223 grey menus.
Compared with prior art, beneficial effects of the present invention:
1, the present invention quickly adjustment gamma voltage method by the way that display panel is divided at least two adjustment regions,
It can debug multiple grayscale simultaneously in the one-time detection period and tie up a little, and just can obtain when completing in the one-time detection period more
A gamma ties up voltage, significantly reduces the regulating time of gamma voltage, improves regulated efficiency, so that production capacity is increased,
In addition, any two adjustment region that divides of the present invention rectangular area do not go together and different lines, so as to avoid each
Picture measurement error due to caused by crosstalk (crosstalk), eliminates interference, improves debugging accuracy.
2, other regions in addition to adjustment region are shown black by the method that the present invention quickly adjusts gamma voltage
Picture further avoids crosstalk to the disturbing effect of measured value.
3, the method that the present invention quickly adjusts gamma voltage substitutes 0 grey menu using 16 grey menus, solves low
Grayscale flicker value too small the problem of being unable to measure, achieve the purpose that 0 grayscale gamma can be adjusted.
Detailed description of the invention
Fig. 1 is a kind of method flow diagram of quickly adjustment gamma voltage provided in an embodiment of the present invention；
Fig. 2 is a kind of display panel schematic diagram provided in an embodiment of the present invention；
Fig. 3 is a kind of apparatus module block diagram of quickly adjustment gamma voltage provided in an embodiment of the present invention.
Specific embodiment
Further detailed description is done to the present invention combined with specific embodiments below, but embodiments of the present invention are not limited to
This.
Embodiment one
Referring to Figure 1, Fig. 1 is a kind of method flow diagram of quickly adjustment gamma voltage provided in an embodiment of the present invention, should
Method is applied to the display panels such as LCD, AMOLED comprising following steps:
The display panel is divided into the rectangular area N × N including at least two adjustment regions, wherein N >=2, and appoint
Two adjustment regions of anticipating the rectangular area do not go together and different lines；
Gamma voltage is provided to each adjustment region, make each adjustment region while showing that correspondence is different
Adjust grey menu；
Adjustment corresponds to the voltage of the adjustment grey menu, so that the flicker value of each grey menu is minimum；
The brightness of each adjustment grey menu is judged in predetermined luminance threshold range, using current voltage value as the tune
The gamma of whole grayscale ties up voltage.
The present invention quickly adjusts the method for gamma voltage by the way that display panel is divided at least two adjustment regions, energy
It is enough to debug multiple grayscale simultaneously in the one-time detection period and tie up a little, and just can obtain when completing in the one-time detection period multiple
Gamma ties up voltage, significantly reduces the regulating time of gamma voltage, improves regulated efficiency, so that production capacity is increased, this
Outside, any two adjustment region that the present invention divides rectangular area do not go together and different lines, so as to avoid each picture
Face measurement error due to caused by crosstalk (crosstalk), eliminates interference, improves debugging accuracy.
In a specific embodiment, the rectangular area further includes background area, and it is black to show the background area
Color picture.
The method that the present invention quickly adjusts gamma voltage shows that black is drawn to other regions in addition to adjustment region
Face further avoids crosstalk to the disturbing effect of measured value.
In order to better illustrate the method flow of the present embodiment, Fig. 2 is referred to, Fig. 2 is provided in an embodiment of the present invention one
Kind display panel schematic diagram, the display panel include 4 × 4 rectangular area.
Wherein, it is divided into the rectangular area that number is 1-16, wherein the region 4,7,11,13 marked as A is adjustment region,
It and is background area labeled as other rectangular areas of B.
From figure 2 it can be seen that region 4 is arranged in the first row the 4th, region 7 is arranged in the second row third, and region 10 is in third
Row secondary series, region 13 in fourth line first row, i.e., any two adjustment region the rectangular area do not go together and it is different
Column, other regions are then background area, and black picture is shown in background area；Certainly, also there are also other combinations, such as adjust
Main plot domain be region 1, region 6, region 11, region 16, as long as guarantee any two adjustment region the rectangular area not
Colleague and different lines.
It is corresponding to adjust 4 groups of grey menus simultaneously since adjustment region has 4, for example, can adjust simultaneously
16 grey menus, 31 grey menus, 127 grey menus and 223 grey menus, corresponding distribution is according to depending on actual conditions.By
It is limited to the sensitivity of current detecting instrument, the flicker value Many times of 0 grayscale are due to smaller, so that detecting instrument can not be examined
Accurate data are measured, cause low ash rank that can not adjust, and 0 grayscale flicker picture is changed to 16 grayscale by the present embodiment
Flicker picture can also play the purpose of 0 grayscale gamma adjustment under the premise of not changing calibration accuracy, make 0 ash
The FLICKER value of rank is minimum.
The method that the present invention quickly adjusts gamma voltage substitutes 0 grey menu using 16 grey menus, solves low ash
Rank flicker value too small the problem of being unable to measure, achieve the purpose that 0 grayscale gamma can be adjusted.
Embodiment two
Fig. 3 is referred to, Fig. 3 is a kind of apparatus module block diagram of quickly adjustment gamma voltage provided in an embodiment of the present invention,
It include: the display panel to be divided into the rectangular area N × N including at least two adjustment regions, and any two adjust area
Domain the rectangular area do not go together and different lines；
Further include: gamma voltage control module, for generating the gamma voltage letter for corresponding to each adjustment region
Number, form corresponding display signal；
Signal input module connects the gamma voltage control module, for receiving the display signal, to the tune
Main plot domain inputs the corresponding display signal, makes each adjustment region while showing that corresponding different adjustment grayscale is drawn
Face；
At least two detection sensors are correspondingly arranged in the adjustment region, for detecting the adjustment region
The flicker value of corresponding adjustment grey menu；
The microcontroller connects at least two detection sensor, for receiving the flicker value, according to the sudden strain of a muscle
Bright value adjustment corresponds to the voltage of the adjustment grey menu, so that the flicker value of each grey menu is minimum；
When at least two detection sensor is also used to detect the flicker value minimum for making each adjustment grey menu,
The corresponding adjustment grey menu brightness value；
The microprocessor is also used to judge that each brightness value in predetermined luminance threshold range, incites somebody to action current electricity
Pressure value ties up voltage as the gamma of the grayscale, and stores the gamma and tie up voltage.
It is illustrated below again for specific example:
For 4 × 4, display panel shares 16 pieces of rectangular areas, and drive area 1-16 is shown simultaneously, forms a period
Test pictures, wherein drive area 4,7,11,13 shows 16 grey menus, 31 grey menus, 127 grey menus, 223 simultaneously
Grey menu drives other rectangular areas while showing black picture.
By gamma voltage control module, gamma IC (gamma chip) specifically can be, load Vcom to display panel
Voltage and gamma voltage corresponding to grey menu and black picture, above-mentioned voltage, specifically can be with by signal input module
It is data driver and gate drivers, is loaded into the pixel subelement of corresponding matrix area；
4 detection sensors of adjustment region are set, which can detecte flicker value and brightness value, right
It should detect one piece of region, while detect 16 grey menus, 31 grey menus, 127 grey menus, 223 grey menu, 4 regions
Flash (Flicker) value；
Microcontroller can be FPGA, connect 4 detection sensors, while receiving the flashing in 4 regions
(Flicker) value adjusts corresponding 16 grey menu, 31 grey menus, 127 grey menus, 223 according to the flicker value received
The voltage of grey menu, so that the flicker value of 4 grey menus is minimum, the above process is that detection sensor and microcontroller are assisted
With what is completed, the numerical value for according to circumstances adjusting gamma voltage is needed to complete to adjust during adjustment, guarantees that flicker value conforms to
It asks；
When the flicker value of 4 grey menus all reaches minimum, then the brightness value of 4 grey menus at this time is detected, and
Microprocessor is sent by 4 brightness values, the untreated each brightness value of judgement in predetermined luminance threshold range, shows to adjust
It is made into function, ties up voltage for current voltage value as the gamma of the grayscale, and stores the gamma and ties up voltage to gamma
In IC.
The present invention quickly adjusts the device of gamma voltage by the way that display panel is divided at least two adjustment regions, energy
It is enough to debug multiple grayscale simultaneously in the one-time detection period and tie up a little, and just can obtain when completing in the one-time detection period multiple
Gamma ties up voltage, significantly reduces the regulating time of gamma voltage, improves regulated efficiency, so that production capacity is increased, this
Outside, any two adjustment region that the present invention divides rectangular area do not go together and different lines, so as to avoid each picture
Face measurement error due to caused by crosstalk (crosstalk), eliminates interference, improves debugging accuracy.Secondly, the present invention couple
Other regions in addition to adjustment region show black picture, further avoid crosstalk to the disturbing effect of measured value, adopt
0 grey menu is substituted with 16 grey menus, solves the problems, such as that low ash rank flicker value is too small and is unable to measure, 0 can be adjusted by reaching
The purpose of grayscale gamma.
The above content is a further detailed description of the present invention in conjunction with specific preferred embodiments, and it cannot be said that
Specific implementation of the invention is only limited to these instructions.For those of ordinary skill in the art to which the present invention belongs, In
Under the premise of not departing from present inventive concept, a number of simple deductions or replacements can also be made, all shall be regarded as belonging to of the invention
Protection scope.
Claims (8)
1. a kind of method of quickly adjustment gamma voltage, is applied to display panel, which comprises the following steps:
The display panel is divided into the rectangular area N × N including at least two adjustment regions, wherein N >=2, and any two
A adjustment region the rectangular area do not go together and different lines；
Gamma voltage is provided to each adjustment region, make each adjustment region while showing corresponding different adjustment
Grey menu；
Adjustment corresponds to the voltage of the adjustment grey menu, so that the flicker value of each grey menu is minimum；
The brightness of each adjustment grey menu is judged in predetermined luminance threshold range, using current voltage value as adjustment ash
The gamma of rank ties up voltage.
2. the method for quick adjustment gamma voltage according to claim 1, which is characterized in that also wrap the rectangular area
Background area is included, and the background area is made to show black picture.
3. the method for quick adjustment gamma voltage according to claim 1, which is characterized in that the display panel includes 4
× 4 rectangular area.
4. the method for quick adjustment gamma voltage according to claim 1, which is characterized in that the different tune of the correspondence
Whole grey menu is 16 grey menus, 31 grey menus, 127 grey menus, 223 grey menus.
5. a kind of device of quickly adjustment gamma, is applied to display panel characterized by comprising draw the display panel
Be divided into the rectangular area N × N including at least two adjustment regions, and any two adjustment region the rectangular area not
Colleague and different lines；
Further include: gamma voltage control module, for generating the gamma voltage signal for corresponding to each adjustment region, shape
At corresponding display signal；
Signal input module connects the gamma voltage control module, for receiving the display signal, to the adjustment area
Domain inputs the corresponding display signal, makes each adjustment region while showing corresponding different adjustment grey menu；
At least two detection sensors are correspondingly arranged in the adjustment region, corresponding for detecting the adjustment region
Adjustment grey menu flicker value；
The microcontroller connects at least two detection sensor, for receiving the flicker value, according to the flicker value
Adjustment corresponds to the voltage of the adjustment grey menu, so that the flicker value of each grey menu is minimum；
It is corresponding when at least two detection sensor is also used to detect the flicker value minimum for making each adjustment grey menu
The adjustment grey menu brightness value；
The microprocessor is also used to judge each brightness value in predetermined luminance threshold range, by current voltage value
Gamma as the grayscale ties up voltage, and stores the gamma and tie up voltage.
6. the device of quick adjustment gamma according to claim 5, which is characterized in that the rectangular area further includes back
Scene area, the background area show black picture；
The gamma voltage control module is also used to generate the gamma voltage signal for corresponding to the black picture, and makes described
Signal input module corresponds to the display signal of black picture to background area input, and it is black to show the background area
Color picture.
7. the device of quick adjustment gamma according to claim 5, which is characterized in that the display panel includes 4 × 4
Rectangular area.
8. the device of quick adjustment gamma according to claim 5, which is characterized in that the different adjustment ash of the correspondence
Rank picture is 16 grey menus, 31 grey menus, 127 grey menus, 223 grey menus.
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| CN201810376148.3A CN110400532A (en) | 2018-04-25 | 2018-04-25 | A kind of method and apparatus of quick adjustment gamma voltage |
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| CN201810376148.3A CN110400532A (en) | 2018-04-25 | 2018-04-25 | A kind of method and apparatus of quick adjustment gamma voltage |
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| CN113724664A (en) * | 2021-08-26 | 2021-11-30 | Tcl华星光电技术有限公司 | Display panel and control method thereof |
| CN114627833A (en) * | 2022-02-28 | 2022-06-14 | 长沙惠科光电有限公司 | Display method, display panel and readable storage medium |
| CN115331611A (en) * | 2022-10-14 | 2022-11-11 | 海的电子科技(苏州)有限公司 | Multi-probe gamma adjusting method and device for display panel |
| TWI823681B (en) * | 2022-11-18 | 2023-11-21 | 友達光電股份有限公司 | Display device and image display method |
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