CN208706220U - A kind of colour gamut calibrating installation and colour gamut calibration system - Google Patents
A kind of colour gamut calibrating installation and colour gamut calibration system Download PDFInfo
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Abstract
The utility model discloses a kind of colour gamut calibrating installation and system, which includes acquisition module, contrast module and computing module；Acquisition module can acquire under current backlight driving current, the color component information of three kinds of coloured light of display device；Contrast module is connect with acquisition module, and contrast module can compare the color component information of three kinds of coloured light and the color component information of target color gamut three primary colours, determines the difference of the two；Computing module is connect with contrast module, computing module can be according to the difference of the color component information of the color component information and target color gamut three primary colours of three kinds of coloured light, it determines the color component information for needing to compensate, and the color component information compensated can will be needed to be sent to display device.Colour gamut calibrating installation provided by the utility model can calibrate the deviation between current colour gamut and target color gamut, and cross-color when reducing image display improves the visual experience of user.
Description
Technical field
The utility model embodiment is related to field of display technology more particularly to a kind of colour gamut calibrating installation and colour gamut calibration system
System.
Background technique
For liquid crystal display panel, consumer increasingly aspires after perfection to its display effect, and the stability of colour gamut also becomes
An important factor for measuring panel quality, especially for being engaged in for the staff of image procossing, the stability of color domain is wanted
Ask very high.The several key factors of colour gamut are influenced including data-signal, optical filter and backlight module.
TFT-LCD display panel is all pursued lightening at present, so backlight module is substantially LED light.It can usually adopt
With the brightness of simulation light modulation and pulse width modulation (Pulse Width Modulation, PWM) adjustment backlight module.It is right
For simulation light modulation, the variation of driving current will affect the characteristics of luminescence of LED, and especially for White LED, colour temperature is held very much
Easily it is detected；Furthermore when using more than one White LED light source, the colour temperature difference of each LED light is just easy to be put
Greatly, to be easier to be aware, the colour gamut of panel is not only influenced, also will affect the visual experience of consumer.PWM dimming mode
It can make backlight module stabilized illumination, but PWM dimming mode is limited by PWM frequency, when its frequency is in 200Hz-20kHz
Between, it will lead to inductance and capacitor near LED Driver and generate noise, this noise not only influences Noise Test, but also
It can be heard by human ear, be always a puzzlement for noise evaluation, and eliminate this noise currently without preferable method.
Utility model content
The utility model provides a kind of colour gamut calibrating installation and colour gamut calibration system, is become with solving display device colour gamut
The problem of change leads to cross-color, improve the visual experience of user.
In a first aspect, the utility model embodiment provides a kind of colour gamut calibrating installation, including acquisition module, contrast module
And computing module；
Acquisition module can acquire under current backlight driving current, the color component information of three kinds of coloured light of display device；
Contrast module is connect with acquisition module, and contrast module can be by the color component information and target color gamut of three kinds of coloured light
The color component information of three primary colours compares, and determines the difference of the two；
Computing module is connect with contrast module, and computing module can be according to the color component information and aim colour of three kinds of coloured light
The difference of the color component information of domain three primary colours determines the color component information for needing to compensate, and the face that can compensate needs
Colouring component information is sent to display device.
Optionally, acquisition module uses color analysis instrument.
Optionally, acquisition module uses spectrum sensor.
Optionally, spectrum sensor is Spark micro spectral sensor.
Optionally, target color gamut includes one of sRGB colour gamut, Adobe RGB color domain and the customized colour gamut of user.
Second aspect, the utility model embodiment additionally provide a kind of colour gamut calibration system, including the utility model first
The driving plate of aspect any the colour gamut calibrating installation and display device, computing module and display device connects, and calculates mould
Block can transmit the color component information for needing to compensate, and the color component information that driving plate compensates as needed generates corresponding benefit
Data-signal is repaid, offset data signal is used to calibrate the colour gamut of display device.
Optionally, memory module is provided in driving plate, memory module is stored with target color gamut and offset data signal
Mapping relations and offset data signal.
Optionally, memory module includes band Electrically Erasable Programmable Read-Only Memory.
Colour gamut calibrating installation provided by the embodiment of the utility model acquires current backlight driving current by acquisition module
Under, the color component information of three kinds of coloured light of display device, contrast module is by the color component information and aim colour of three kinds of coloured light
The color component information of domain three primary colours compares, and determines the difference of the two；Computing module is according to the color component of three kinds of coloured light
The difference of the color component information of information and target color gamut three primary colours determines the color component information for needing to compensate, and will need
The color component information of compensation is sent to display device, and the color component information that display device compensates as needed is to current backlight
The color component of three kinds of coloured light of display device compensates under driving current.It solves under analog dimming mode, display device
Colour gamut changes the problem of leading to cross-color, improves the visual experience of user.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of colour gamut calibrating installation provided by the embodiment of the utility model；
Fig. 2 is a kind of structural schematic diagram of colour gamut calibration system provided by the embodiment of the utility model；
Fig. 3 is using a kind of flow chart of colour gamut calibration method provided by the embodiment of the utility model.
Specific embodiment
The utility model is described in further detail with reference to the accompanying drawings and examples.It is understood that herein
Described specific embodiment is merely capable of explaining the utility model, rather than the restriction to the utility model.It further needs exist for
It is bright, part relevant to the utility model is illustrated only for ease of description, in attached drawing rather than entire infrastructure.
The utility model embodiment provides a kind of colour gamut calibrating installation, and Fig. 1 is color provided by the embodiment of the utility model
The structural schematic diagram of domain calibrating installation, as shown in Figure 1, the colour gamut calibrating installation includes acquisition module 10, contrast module 20 and meter
Calculate module 30.
Wherein, acquisition module 10 can acquire under current backlight driving current, the color point of three kinds of coloured light of display device
Measure information.Specifically, acquisition module 10 is used to acquire the light of display device sending, and it is divided into three kinds of red, green, blue through beam splitting system
Coloured light is respectively radiated on corresponding inductor, and inductor converts optical signals to electric signal, and in acquired module 10
Processing unit processes, obtain the chrominance information of three kinds of coloured light.Coloration is the property of the color not including brightness, it reflects
Be color tone and saturation degree.Specifically, chrominance information includes coordinate value (X, Y) of three kinds of coloured light in chromaticity coordinate,
Wherein, X-axis chromaticity coordinate is equivalent to the ratio of red primary；Y-axis chromaticity coordinate is equivalent to the ratio of green primary；Z axis chromaticity coordinate
It is equivalent to ratio shared by blue primary.Wherein, ratio shared by blue primary is without showing, because of proportionality coefficient X+Y+Z=1, Z's
Coordinate value can calculate, i.e. 1- (X+Y)=Z.Wherein, color component, that is, X, Y and Z value.
When following table is 73% that backlight illumination is maximum brightness, each colour gamut mould is collected using CA-310 type color analysis instrument
Under formula, the color component information of three kinds of coloured light and white light of display device.
Wherein, Adobe RGB, sRGB, DIC-P3, REC2020, REC709, CAL1 and CAL2 are several different colour gamuts
Mode, under above-mentioned colour gamut mode, the target color gamut of display device be respectively Adobe RGB, sRGB, DIC-P3, REC2020,
REC709, CAL1 and CAL2 colour gamut.
Contrast module 20 is connect with acquisition module 10, is constituted under transmitting current backlight driving current, three kinds of display device
The first line of the color component information of coloured light, for collected color component information to be passed to contrast module 20.Comparison
Module 20 can compare the color component information of three kinds of coloured light and the color component information of target color gamut three primary colours, determine
The difference of the two.Specifically, contrast module 20 receive acquisition module 10 sending three kinds of coloured light color component information after,
The color component information of three kinds of coloured light is carried out with the color component information of three kinds of coloured light of preset target color gamut respectively pair
Than determining the difference of the two.
Computing module 30 is connect with contrast module 20, constitutes the chrominance information and target of three kinds of coloured light of transmitting display device
Second route of the difference of the chrominance information of colour gamut three primary colours, for by the color component information of three kinds of coloured light of display device with
The difference of the color component information of target color gamut three primary colours passes to computing module 30.Computing module 30 can be according to receiving
The difference of the color component information of the color component information and target color gamut three primary colours of three kinds of coloured light of display device is determined and is needed
The color component information of compensation, and the color component information compensated can will be needed to be sent to display device by tertiary circuit；
Display device can be according to the color component information that the needs received compensate to display device under current backlight driving current
The color component of three kinds of coloured light compensates.
Specifically, computing module 30 is by the color component information of three kinds of coloured light of display device and target color gamut three primary colours
The difference of color component information is made comparisons with preset threshold, if the color component information and aim colour of three kinds of coloured light of display device
The difference of the color component information of domain three primary colours is greater than preset threshold, then calculates the color component information for needing to compensate；If aobvious
The difference of the color component information and the color component information of target color gamut three primary colours of three kinds of coloured light of showing device is less than or equal to
Preset threshold, then in error range, i.e., the current colour gamut of display device and target color gamut deviation are smaller, face for the difference both determined
Colour distortion is slighter, will not have an impact to the use of user, and computing module 30 is without calculating the color for needing to compensate point at this time
Measure information.For example, when the difference of the color component of the red light of the color component and target color gamut of red light is greater than preset threshold
When, computing module 30 calculates the color component information that red light needs to compensate.Display device can be according to the needs received
The color component information of compensation to under current backlight driving current, mended by the color component of three kinds of coloured light of display device
It repays, illustratively, the color component of three kinds of coloured light of display device can be carried out by adjusting the data-signal of display device
Compensation, to calibrate the deviation between current colour gamut and target color gamut.
Optionally, in the utility model other embodiments, display device compensates the color component of three kinds of coloured light
Afterwards, colour gamut calibrating installation can acquire the color component information of three kinds of coloured light of display device again, repeat above-mentioned colour gamut and calibrated
Journey, to improve calibration accuracy.Colour gamut calibrating installation provided by the embodiment of the utility model, acquires current backlight by acquisition module
Under driving current, the color component information of three kinds of coloured light of display device, contrast module is by the color component information of three kinds of coloured light
It is compared with the color component information of target color gamut three primary colours, determines the difference of the two；Computing module is according to three kinds of coloured light
The difference of the color component information of color component information and target color gamut three primary colours, determines the color component information for needing to compensate,
And the color component information compensated will be needed to be sent to display device, the color component information pair that display device compensates as needed
The color component of three kinds of coloured light of display device compensates under current backlight driving current.It solves under analog dimming mode,
Display device colour gamut changes the problem of leading to cross-color, improves the visual experience of user.
Optionally, acquisition module 10 uses color analysis instrument.
Specifically, acquisition module 10 can use color analysis instrument, such as Minolta CA-210 or CA-310 type color point
Analyzer, the optic probe of color analysis instrument are used to acquire the light of display device sending, and optic probe includes beam splitting system and induction
Collected light beam is divided into three kinds of coloured light of red, green, blue, is respectively radiated on corresponding inductor by device, beam splitting system, sense
It answers device to convert optical signals to electric signal, and is handled through the processor in color analysis instrument, obtain the color component of three kinds of coloured light
Information.
In above-described embodiment, contrast module 20 and computing module 30 can integrate the driving chip IC in display device,
It can integrate the data processing equipment independently of driving chip IC.In the utility model embodiment, color analysis instrument can lead to
Cross it is wired connect with computer module, computer module includes contrast module 20 and computing module 30, and color analysis instrument is by three kinds
The color component information of coloured light is sent to the contrast module 20 of computer module, and contrast module 20 is by the color component of three kinds of coloured light
The color component information of information and target color gamut three primary colours compares, and determines the difference of the two；Computing module 30 is according to reception
The difference of the color component information of the color component information and target color gamut three primary colours of three kinds of coloured light of the display device arrived determines
The color component information for needing to compensate, and the TCON (meter that the color component information compensated can will be needed to be sent to display device
Number device controls register, Timer Control Register), TCON is finely adjusted the data-signal of display device, with right
The color component of three kinds of coloured light of display device compensates under current backlight driving current.In another embodiment of the utility model
In, computer module is built-in with calibration software, after color analysis instrument collects the color component information of three kinds of coloured light of display device,
Can be by manual type by the color component information typing calibration software of three kinds of coloured light, which includes contrast module
20 and computing module 30, user, which need to only start calibration software, can be completed the colour gamut calibration process of display device, after the completion of calibration,
Calibration software issues calibration and completes standby signal, reminds user that calibration is completed.
Optionally, acquisition module 10 uses spectrum sensor.In the utility model embodiment, it is miniature that Spark can be used
Spectrum sensor.
Optionally, target color gamut includes one of sRGB colour gamut, Adobe RGB color domain and the customized colour gamut of user.
Colour gamut refers to the range areas that the number of colors that certain equipment can be expressed is constituted, i.e., various screens, which are shown, to be set
The color gamut that standby, printer or printing equipment can show.Currently, the colour gamut of mobile terminal such as mobile phone screen is increasingly
Height, some color coverage rates reach even beyond NTSC (National Television Standards Committee, state
Family television standard committee) formulate color gamut 100%.Target color gamut in the utility model embodiment may include
At least one of sRGB colour gamut, Adobe RGB color domain and customized colour gamut.SRGB colour gamut has 71% NTSC color gamut,
Present the Internet transmission standard color gamut is usually sRGB colour gamut.Adobe RBG colour gamut, color space are greater than sRGB colour gamut,
It can be applicable to some professional photo fields.In the utility model embodiment, customized colour gamut can also be arranged in user, according to user
The desired colour gamut of self-demand setting.Best image colour gamut corresponding to different types of input image signal is different, if defeated
The gamut range for entering video signal is different from the gamut range of display device, then will when display device shows the input image
It will lead to image color distortion, can not really show the image color of things.The utility model embodiment can be according to actually making
Corresponding target color gamut is selected that is, according to the type of input image signal with situation.
The utility model embodiment additionally provides a kind of colour gamut calibration system, and Fig. 2 is provided by the embodiment of the utility model
A kind of structural schematic diagram of colour gamut calibration system, as shown in Fig. 2, including the colour gamut that the above-mentioned any embodiment of the utility model provides
Calibrating installation and display device 40, wherein colour gamut calibrating installation includes acquisition module 10, contrast module 20 and computing module
30；
Acquisition module 10 can acquire under current backlight driving current, the color component letter of three kinds of coloured light of display device 40
Breath；
Contrast module 20 is connect with acquisition module 10, and contrast module 20 can be by the color component information and mesh of three kinds of coloured light
The color component information of mark colour gamut three primary colours compares, and determines the difference of the two；
Computing module 30 is connect with contrast module 20, computing module 30 can according to the color component information of three kinds of coloured light with
The difference of the color component information of target color gamut three primary colours determines the color component information for needing to compensate, and can will need to mend
The color component information repaid is sent to display device.
Computing module 30 is connect with the driving plate of display device 40, and computing module 30 can transmit the color point for needing to compensate
Information is measured to driving plate, the color component information that the TCON in driving plate is compensated as needed generates corresponding offset data letter
Number, offset data signal is used to calibrate the colour gamut of display device 40.
Colour gamut calibration system provided by the embodiment of the utility model acquires current backlight driving current by acquisition module
Under, the color component information of three kinds of coloured light of display device, contrast module is by the color component information and aim colour of three kinds of coloured light
The color component information of domain three primary colours compares, and determines the difference of the two；Computing module is according to the color component of three kinds of coloured light
The difference of the color component information of information and target color gamut three primary colours determines the color component information for needing to compensate, and will need
The color component information of compensation is sent to display device, and the color component information that display device compensates as needed is to current backlight
The color component of three kinds of coloured light of display device compensates under driving current.It solves under analog dimming mode, display device
Colour gamut changes the problem of leading to cross-color, improves the visual experience of user.
Optionally, memory module is provided in driving plate, memory module is stored with target color gamut and offset data signal
Mapping relations and offset data signal.
Specifically, the colour gamut calibration system further includes configuration file generation module and data calling module, filled to display
During the colour gamut set is calibrated, it includes target color gamut that configuration file generation module, which generates, and offset data signal reflects
The configuration file of relationship is penetrated, and is stored in memory module together with offset data signal.Display device is selected in acquisition user
Target color gamut after, data call module according to configuration file call with the matched offset data signal of target color gamut, and send
Corresponding offset data signal, offset data are generated to the color component information that the TCON of driving plate, TCON are compensated as needed
Signal is used to calibrate the colour gamut of display device.Wherein, target color gamut includes that sRGB colour gamut, Adobe RGB color domain and user make by oneself
One of adopted colour gamut.In this way, user fills display without frequently can be completed using the light that acquisition module acquisition screen issues
The colour gamut calibration set, greatly facilitates user's calibration process.
In the above-described embodiments, memory module can be the driving chip IC of display device, can also be flash memory storage list
Member can also be independently of the storage device of driving chip IC.Optionally, in the utility model wherein an embodiment, storage
Module is band Electrically Erasable Programmable Read-Only Memory (Electrically Erasable Programmable read only
Memory, EEPROM).EEPROM can be wiped and be reprogrammed by being higher than the effect of common voltage independently of driving chip IC,
And it is not required to take out from computer and can modify.
It should be noted that contrast module 20 and computing module 30 can integrate the driving chip IC in display device,
It can integrate the data processing equipment independently of driving chip IC, in the utility model wherein an embodiment, contrast module 20
It is integrated in the data processing equipment independently of driving chip IC with computing module 30, which can be calculating unit
The processor of part.Due to the processing of color component information, the corresponding offset data signal of plurality of target colour gamut and plurality of target
The configuration file of colour gamut mode and the mapping relations of offset data signal generates and storage is not in the driving of display display device
It is executed in chip IC, the space of the driving chip IC without occupying display display device, therefore can be flexibly according to user's need
The configuration file for updating storage a large amount of offset data signal and mapping relations is sought, to select display device according to user
Target color gamut, adjust the output of data-signal, to display device carry out colour gamut calibration.
Fig. 3 is using a kind of flow chart of colour gamut calibration method provided by the embodiment of the utility model, and this method is by this reality
It is executed with novel colour gamut calibration system provided by the above embodiment, as shown in figure 3, this method comprises:
The color component letter of three kinds of coloured light of display device under S1, colour gamut calibrating installation acquisition current backlight driving current
Breath.
S2, colour gamut calibrating installation are by the color component information of the color component information of three kinds of coloured light and target color gamut three primary colours
It compares, determines the difference of the two.
S3, colour gamut calibrating installation are believed according to the color component information of three kinds of coloured light and the color component of target color gamut three primary colours
The difference of breath determines the color component information for needing to compensate.
The color component information that S4, colour gamut calibrating installation compensate as needed determines offset data signal.
S5, display device adjust the data-signal of display device according to offset data signal.
Note that above are only the preferred embodiment and institute's application technology principle of the utility model.Those skilled in the art's meeting
Understand, the utility model is not limited to specific embodiment described here, is able to carry out for a person skilled in the art various bright
Aobvious variation, readjustment and substitution is without departing from the protection scope of the utility model.Therefore, although passing through above embodiments
The utility model is described in further detail, but the utility model is not limited only to above embodiments, is not departing from
It can also include more other equivalent embodiments in the case that the utility model is conceived, and the scope of the utility model is by appended
Scope of the claims determine.
Claims (8)
1. a kind of colour gamut calibrating installation characterized by comprising acquisition module, contrast module and computing module；
The acquisition module can acquire under current backlight driving current, the color component information of three kinds of coloured light of display device；
The contrast module is connect with acquisition module, and the contrast module can be by the color component information and target of three kinds of coloured light
The color component information of colour gamut three primary colours compares, and determines the difference of the two；
The computing module is connect with the contrast module, and the computing module can be believed according to the color color component of three kinds of coloured light
The difference of breath and the color component informations of target color gamut three primary colours, determines the color component information for needing to compensate, and can need to
The color component information to be compensated is sent to the display device.
2. colour gamut calibrating installation according to claim 1, which is characterized in that the acquisition module uses color analysis instrument.
3. colour gamut calibrating installation according to claim 1, which is characterized in that the acquisition module uses spectrum sensor.
4. colour gamut calibrating installation according to claim 3, which is characterized in that the spectrum sensor is the miniature light of Spark
Spectrum sensor.
5. colour gamut calibrating installation according to claim 1, which is characterized in that the target color gamut include sRGB colour gamut,
One of Adobe RGB color domain and the customized colour gamut of user.
6. a kind of colour gamut calibration system, which is characterized in that including the described in any item colour gamut calibrating installations of claim 1-5 and
Display device, the computing module are connect with the driving plate of the display device, and the computing module, which can transmit, to be needed to compensate
Color component information, color component information that the driving plate compensates as needed generates corresponding offset data signal, institute
Offset data signal is stated for calibrating the colour gamut of display device.
7. colour gamut calibration system according to claim 6, which is characterized in that it is provided with memory module in the driving plate,
The memory module is stored with the mapping relations and offset data signal of target color gamut and offset data signal.
8. colour gamut calibration system according to claim 7, which is characterized in that the memory module includes band electric erasable and programmable
Journey read-only memory.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111429827A (en) * | 2020-03-19 | 2020-07-17 | 展讯通信（上海）有限公司 | Display screen color calibration method and device, electronic equipment and readable storage medium |
| CN112233605A (en) * | 2020-10-28 | 2021-01-15 | 合肥京东方光电科技有限公司 | Color gamut adjusting method and device, electronic equipment and storage medium |
| CN112309312A (en) * | 2019-07-26 | 2021-02-02 | 西安诺瓦星云科技股份有限公司 | Image display method and device, receiving card, sending card and LED display system |
| CN113205765A (en) * | 2020-12-10 | 2021-08-03 | 深圳市洲明科技股份有限公司 | Display screen color gamut adjusting method and device |
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2018
- 2018-09-07 CN CN201821468467.9U patent/CN208706220U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112309312A (en) * | 2019-07-26 | 2021-02-02 | 西安诺瓦星云科技股份有限公司 | Image display method and device, receiving card, sending card and LED display system |
| CN111429827A (en) * | 2020-03-19 | 2020-07-17 | 展讯通信（上海）有限公司 | Display screen color calibration method and device, electronic equipment and readable storage medium |
| CN111429827B (en) * | 2020-03-19 | 2022-11-29 | 展讯通信（上海）有限公司 | Display screen color calibration method and device, electronic equipment and readable storage medium |
| CN112233605A (en) * | 2020-10-28 | 2021-01-15 | 合肥京东方光电科技有限公司 | Color gamut adjusting method and device, electronic equipment and storage medium |
| CN113205765A (en) * | 2020-12-10 | 2021-08-03 | 深圳市洲明科技股份有限公司 | Display screen color gamut adjusting method and device |
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Address after: 215301 No. 1, Longteng Road, Kunshan Development Zone, Jiangsu, Suzhou Patentee after: Kunshan Longteng Au Optronics Co Address before: 215301 No. 1, Longteng Road, Kunshan Development Zone, Jiangsu, Suzhou Patentee before: Kunshan Longteng Optronics Co., Ltd. |