TWI811110B - Color temperature transition screen display method, display driver chip, display device and information processing device - Google Patents

Color temperature transition screen display method, display driver chip, display device and information processing device Download PDF

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TWI811110B
TWI811110B TW111135201A TW111135201A TWI811110B TW I811110 B TWI811110 B TW I811110B TW 111135201 A TW111135201 A TW 111135201A TW 111135201 A TW111135201 A TW 111135201A TW I811110 B TWI811110 B TW I811110B
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color temperature
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temperature transition
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driver chip
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TW202414375A (en
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林鼎均
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大陸商集創北方（珠海）科技有限公司
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Abstract

一種色溫過渡畫面顯示方法，係由一顯示驅動晶片實現，其包括：依一起始色溫、一目標色溫和一內插點數N自一色溫至RGB調整係數對照表中讀取N+2組調整係數(R C、G C、B C)，N為正整數，且R C、G C、B C均為正實數，其中，該色溫至RGB調整係數對照表中之各組對應數據均取自色度平面上之一黑體軌跡或普朗克軌跡；以及利用所述N+2組調整係數(R C、G C、B C)對應調整N+2幀顯示資料(R IN、G IN、B IN)以產生N+2幀顯示輸出資料(R OUT、G OUT、B OUT)，其中， R OUT= R C* R IN，G OUT= G C* G IN，B OUT= B C* B IN，R IN、G IN、B IN均為非負整數，R OUT、G OUT、B OUT均為非負實數。 A color temperature transition picture display method is realized by a display driver chip, which includes: reading N+2 groups of adjustments from a color temperature to RGB adjustment coefficient comparison table according to an initial color temperature, a target color temperature, and an interpolation point N Coefficients (R C , G C , B C ), N is a positive integer, and R C , G C , B C are all positive real numbers, where the corresponding data of each group in the color temperature to RGB adjustment coefficient comparison table are taken from One blackbody locus or Planckian locus on the chromaticity plane; and using the N+2 sets of adjustment coefficients (R C , G C , B C ) to correspondingly adjust N+2 frames of display data (R IN , G IN , B IN ) to generate N+2 frames of display output data (R OUT , G OUT , B OUT ), where, R OUT = R C * R IN , G OUT = G C * G IN , B OUT = B C * B IN , R IN , G IN , B IN are all non-negative integers, and R OUT , G OUT , B OUT are all non-negative real numbers.

Description

色溫過渡畫面顯示方法、顯示驅動晶片、顯示裝置及資訊處理裝置Color temperature transition screen display method, display driver chip, display device, and information processing device

本發明係有關畫面顯示方法，尤指一種色溫過渡畫面顯示方法。The invention relates to a picture display method, in particular to a color temperature transition picture display method.

請參照圖1，其繪示一現有色溫過渡畫面顯示方法在一色度平面上之色溫過渡軌跡。如圖1所示，該現有色溫過渡畫面顯示方法係在一直線上進行線性內插以產生多個不同的過渡色溫點，俾以在畫面由一色溫(例如10000度K)變換成另一色溫(例如600度K)的過程中使觀看者有較舒服的視覺感受。Please refer to FIG. 1 , which shows a color temperature transition track on a chromaticity plane in a conventional color temperature transition picture display method. As shown in FIG. 1, the existing color temperature transition picture display method is to perform linear interpolation on a straight line to generate a plurality of different transition color temperature points, so that when the picture is converted from one color temperature (for example, 10000 degrees K) to another color temperature ( For example, the process of 600 degrees K) makes the viewer have a more comfortable visual experience.

然而，色度平面上由不同色溫T C(K)點連接而成之黑體軌跡或普朗克軌跡係一曲線而非直線，因此，在該現有色溫過渡畫面顯示方法以線性內插產生的多個內插色溫點中會有兩個相鄰的內插色溫點有很大的色溫差，導致畫面產生閃爍現象。為克服此問題，該現有色溫過渡畫面顯示方法須增加內插色溫點，亦即須在兩個色溫畫面間增加更多的內插色溫畫面。 However, on the chromaticity plane, the blackbody locus or the Planckian locus formed by connecting points of different color temperatures T C (K) is a curve rather than a straight line. There will be a large color temperature difference between two adjacent interpolation color temperature points in an interpolation color temperature point, resulting in flickering phenomenon in the picture. In order to overcome this problem, the existing color temperature transition image display method needs to add interpolation color temperature points, that is, more interpolation color temperature images need to be added between two color temperature images.

為解決上述的問題，本領域亟需一新穎的色溫過渡畫面顯示方法。In order to solve the above problems, there is an urgent need in the art for a novel method for displaying images with color temperature transitions.

本發明之一目的在於揭露一種色溫過渡畫面顯示方法，其可藉由在色度平面之一黑體軌跡或普朗克軌跡上間隔設定多個色溫點以產生與多個色溫對應之多個RGB調整係數，並依該些RGB調整係數對應調整連續顯示之多幀畫面的RGB資料，從而在色溫調整的過程中避免畫面出現閃爍現象。One object of the present invention is to disclose a color temperature transition screen display method, which can generate multiple RGB adjustments corresponding to multiple color temperatures by setting multiple color temperature points at intervals on a blackbody locus or Planckian locus of the chromaticity plane coefficients, and correspondingly adjust the RGB data of the continuously displayed multi-frame images according to these RGB adjustment coefficients, so as to avoid flickering of the images during the color temperature adjustment process.

本發明之另一目的在於揭露一種顯示驅動晶片，其可藉由前述的色溫過渡畫面顯示方法在色溫調整的過程中避免一顯示幕出現閃爍現象。Another object of the present invention is to disclose a display driver chip, which can prevent a display screen from flickering during the color temperature adjustment process by using the aforementioned color temperature transition screen display method.

本發明之另一目的在於揭露一種顯示裝置，其可藉由前述的色溫過渡畫面顯示方法在色溫調整的過程中避免其顯示幕出現閃爍現象。Another object of the present invention is to disclose a display device, which can avoid flickering on the display screen during the color temperature adjustment process by using the above-mentioned color temperature transition screen display method.

本發明之又一目的在於揭露一種資訊處理裝置，其可藉由前述的色溫過渡畫面顯示方法在色溫調整的過程中避免其顯示幕出現閃爍現象。Another object of the present invention is to disclose an information processing device, which can avoid flickering on the display screen during the color temperature adjustment process by using the above-mentioned color temperature transition screen display method.

為達上述目的，一種色溫過渡畫面顯示方法乃被提出，係由一顯示驅動晶片實現，其包括： 依一起始色溫、一目標色溫和一內插點數N自一色溫至RGB調整係數對照表中讀取N+2組調整係數(R C、G C、B C)，N為正整數，且R C、G C、B C均為正實數，其中，該色溫至RGB調整係數對照表中之各組對應數據均取自色度平面上之一黑體軌跡或普朗克軌跡；以及 利用所述N+2組調整係數(R C、G C、B C)對應調整N+2幀顯示資料(R IN、G IN、B IN)以產生N+2幀顯示輸出資料(R OUT、G OUT、B OUT)，其中， R OUT= R C* R IN，G OUT= G C* G IN，B OUT= B C* B IN，R IN、G IN、B IN均為非負整數，R OUT、G OUT、B OUT均為非負實數。 In order to achieve the above purpose, a color temperature transition screen display method is proposed, which is implemented by a display driver chip, which includes: According to an initial color temperature, a target color temperature and an interpolation point N from a color temperature to RGB adjustment coefficient comparison table Read N+2 sets of adjustment coefficients (R C , G C , B C ), N is a positive integer, and R C , G C , and B C are all positive real numbers, where the color temperature is included in the RGB adjustment coefficient comparison table Each set of corresponding data is taken from a black body locus or Planckian locus on the chromaticity plane; and N+2 frames of display data are correspondingly adjusted by using the N+2 sets of adjustment coefficients (R C , G C , B C ) (R IN , G IN , B IN ) to generate N+2 frames of display output data (R OUT , G OUT , B OUT ), where, R OUT = R C * R IN , G OUT = G C * G IN , B OUT = B C * B IN , R IN , G IN , and B IN are all non-negative integers, and R OUT , G OUT , and B OUT are all non-negative real numbers.

在一實施例中，該顯示驅動晶片係依一致能信號啟始該色溫過渡畫面顯示方法。In one embodiment, the display driver chip starts the color temperature transition frame display method according to an enable signal.

在一實施例中，所述之色溫過渡畫面顯示方法進一步包括在該色溫至RGB調整係數對照表之不同色溫點間進行線性內插以增加色溫點的數目。In one embodiment, the color temperature transition image display method further includes performing linear interpolation between different color temperature points in the color temperature to RGB adjustment coefficient table to increase the number of color temperature points.

為達上述目的，本發明進一步提出一種顯示驅動晶片，其具有一色溫過渡處理單元，該色溫過渡處理單元具有一色溫至RGB調整係數對照表以對多幀顯示資料(R IN、G IN、B IN)進行一色溫過渡處理程序以產生多幀顯示輸出資料(R OUT、G OUT、B OUT)，R IN、G IN、B IN均為非負整數，R OUT、G OUT、B OUT均為非負實數，且該色溫過渡處理程序包括： 該色溫過渡處理單元依一起始色溫、一目標色溫和一內插點數N自該色溫至RGB調整係數對照表中讀取N+2組調整係數(R C、G C、B C)，N為正整數，且R C、G C、B C均為正實數，其中，該色溫至RGB調整係數對照表中之各組對應數據均取自色度平面上之一黑體軌跡或普朗克軌跡；以及 該色溫過渡處理單元利用所述N+2組調整係數(R C、G C、B C)對應調整N+2幀顯示資料(R IN、G IN、B IN)以產生N+2幀顯示輸出資料(R OUT、G OUT、B OUT)，其中，R OUT= R C* R IN，G OUT= G C* G IN，B OUT= B C* B IN，R IN、G IN、B IN均為非負整數，R OUT、G OUT、B OUT均為非負實數。 In order to achieve the above object, the present invention further proposes a display driver chip, which has a color temperature transition processing unit, and the color temperature transition processing unit has a color temperature to RGB adjustment coefficient comparison table for multi-frame display data (R IN , G IN , B IN ) performs a color temperature transition process to generate multi-frame display output data (R OUT , G OUT , B OUT ), R IN , G IN , and B IN are all non-negative integers, and R OUT , G OUT , and B OUT are all non-negative Real numbers, and the color temperature transition processing program includes: The color temperature transition processing unit reads N+2 sets of adjustment coefficients (R C , G C , B C ), N is a positive integer, and R C , G C , B C are all positive real numbers, where the corresponding data of each group in the color temperature to RGB adjustment coefficient comparison table are taken from the chromaticity plane One of the above blackbody locus or Planckian locus; and the color temperature transition processing unit uses the N+2 sets of adjustment coefficients ( RC , G C , B C ) to correspondingly adjust N+2 frames of display data (R IN , G IN , B IN ) to generate N+2 frames of display output data (R OUT , G OUT , B OUT ), where R OUT = R C * R IN , G OUT = G C * G IN , B OUT = B C * B IN , R IN , G IN , and B IN are all non-negative integers, and R OUT , G OUT , and B OUT are all non-negative real numbers.

在一實施例中，所述之顯示驅動晶片進一步具有一驅動單元，該驅動單元係用以依所述顯示輸出資料(R OUT、G OUT、B OUT)產生對應的像素電壓以驅動一顯示面板。 In one embodiment, the display driving chip further has a driving unit for generating corresponding pixel voltages according to the display output data (R OUT , G OUT , B OUT ) to drive a display panel .

在一實施例中，該色溫過渡處理單元係依一致能信號啟始該色溫過渡畫面顯示程序。In one embodiment, the color temperature transition processing unit starts the color temperature transition frame display process according to an enable signal.

在一實施例中，該色溫過渡畫面顯示程序進一步包括在該色溫至RGB調整係數對照表之不同色溫點間進行線性內插以增加色溫點的數目。In one embodiment, the color temperature transition image display program further includes performing linear interpolation between different color temperature points in the color temperature to RGB adjustment coefficient table to increase the number of color temperature points.

為達上述目的，本發明進一步提出一種顯示裝置，其具有一顯示面板及用以驅動該顯示面板之一顯示驅動晶片，該顯示驅動晶片具有一色溫過渡處理單元，該色溫過渡處理單元具有一色溫至RGB調整係數對照表以對多幀顯示資料(R IN、G IN、B IN)進行一色溫過渡處理程序以產生多幀顯示輸出資料(R OUT、G OUT、B OUT)，R IN、G IN、B IN均為非負整數，R OUT、G OUT、B OUT均為非負實數，且該色溫過渡處理程序包括： 該色溫過渡處理單元依一起始色溫、一目標色溫和一內插點數N自該色溫至RGB調整係數對照表中讀取N+2組調整係數(R C、G C、B C)，N為正整數，且R C、G C、B C均為正實數，其中，該色溫至RGB調整係數對照表中之各組對應數據均取自色度平面上之一黑體軌跡或普朗克軌跡；以及 該色溫過渡處理單元利用所述N+2組調整係數(R C、G C、B C)對應調整N+2幀顯示資料(R IN、G IN、B IN)以產生N+2幀顯示輸出資料(R OUT、G OUT、B OUT)，其中，R OUT= R C* R IN，G OUT= G C* G IN，B OUT= B C* B IN，R IN、G IN、B IN均為非負整數，R OUT、G OUT、B OUT均為非負實數。 To achieve the above object, the present invention further proposes a display device, which has a display panel and a display driver chip for driving the display panel, the display driver chip has a color temperature transition processing unit, and the color temperature transition processing unit has a color temperature transition processing unit. To the RGB adjustment coefficient comparison table to perform a color temperature transition process on multi-frame display data (R IN , G IN , B IN ) to generate multi-frame display output data (R OUT , G OUT , B OUT ), R IN , G IN and B IN are both non-negative integers, R OUT , G OUT , and B OUT are all non-negative real numbers, and the color temperature transition processing program includes: The color temperature transition processing unit is based on an initial color temperature, a target color temperature, and an interpolation point number N Read N+2 sets of adjustment coefficients (R C , G C , B C ) from the color temperature to RGB adjustment coefficient comparison table, N is a positive integer, and R C , G C , and B C are all positive real numbers, where, Each set of corresponding data in the color temperature to RGB adjustment coefficient comparison table is taken from a blackbody locus or Planckian locus on the chromaticity plane; and the color temperature transition processing unit utilizes the N+2 sets of adjustment coefficients (R C , G C , B C ) correspondingly adjust N+2 frames of display data (R IN , G IN , B IN ) to generate N+2 frames of display output data (R OUT , G OUT , B OUT ), where R OUT = R C * R IN , G OUT = G C * G IN , B OUT = B C * B IN , R IN , G IN , and B IN are all non-negative integers, and R OUT , G OUT , and B OUT are all non-negative real numbers.

在一實施例中，該顯示驅動晶片進一步具有一驅動單元，該驅動單元係用以依所述顯示輸出資料(R OUT、G OUT、B OUT)產生對應的像素電壓以驅動該顯示面板。 In one embodiment, the display driver chip further has a driver unit for generating corresponding pixel voltages according to the display output data (R OUT , G OUT , B OUT ) to drive the display panel.

在一實施例中，該色溫過渡處理單元係依一致能信號啟始該色溫過渡畫面顯示程序。In one embodiment, the color temperature transition processing unit starts the color temperature transition frame display process according to an enable signal.

在一實施例中，該色溫過渡畫面顯示程序進一步包括在該色溫至RGB調整係數對照表之不同色溫點間進行線性內插以增加色溫點的數目。In one embodiment, the color temperature transition image display program further includes performing linear interpolation between different color temperature points in the color temperature to RGB adjustment coefficient table to increase the number of color temperature points.

在可能的實施例中，該顯示面板可為一液晶顯示面板、一微發光二極體顯示面板、一次毫米發光二極體顯示面板、一量子點發光二極體顯示面板或一有機發光二極體顯示面板。In a possible embodiment, the display panel can be a liquid crystal display panel, a micro light emitting diode display panel, a sub-millimeter light emitting diode display panel, a quantum dot light emitting diode display panel or an organic light emitting diode display panel body display panel.

為達上述目的，本發明進一步提出一種資訊處理裝置，其具有一中央處理單元及如前述之顯示裝置，其中，該中央處理單元係用以與顯示裝置通信。To achieve the above purpose, the present invention further proposes an information processing device, which has a central processing unit and the aforementioned display device, wherein the central processing unit is used to communicate with the display device.

在可能的實施例中，所述之資訊處理裝置可為一智慧型手持裝置、一攜帶型電腦、一穿戴裝置、一車載電腦或一門禁系統。In a possible embodiment, the information processing device may be a smart handheld device, a portable computer, a wearable device, a vehicle computer or an access control system.

為使　貴審查委員能進一步瞭解本發明之結構、特徵及其目的，茲附以圖式及較佳具體實施例之詳細說明如後。In order to enable your review committee members to further understand the structure, features and purpose of the present invention, drawings and detailed descriptions of preferred specific embodiments are hereby attached.

本發明之原理在於： (一)利用色度平面上連接一起始色溫點與一目標色溫點之一黑體軌跡或普朗克軌跡作為內插色溫點的軌跡以均勻化各二相鄰內插色溫點的色溫差； (二)利用該起始色溫點、該些內插色溫點及該目標色溫點產生多個對應的(R、G、B)調變係數組合；以及 (三)在該起始色溫點與該目標色溫點間之各幀畫面顯示期間均以一對應的(R、G、B)調變係數組合調整一幀(R、G、B)顯示資料，從而優化觀看者的視覺體驗。 Principle of the present invention is: (1) Using the black body locus or Planckian locus connecting an initial color temperature point and a target color temperature point on the chromaticity plane as the locus of the interpolation color temperature point to even out the color temperature difference between two adjacent interpolation color temperature points; (2) Using the initial color temperature point, the interpolation color temperature points and the target color temperature point to generate a plurality of corresponding (R, G, B) modulation coefficient combinations; and (3) Adjust a frame (R, G, B) display data with a corresponding (R, G, B) modulation factor combination during each frame display period between the initial color temperature point and the target color temperature point, Thereby optimizing the viewer's visual experience.

請參照圖2，其繪示本發明之顯示裝置之一實施例的方塊圖。如圖2所示，一顯示裝置100具有一顯示面板110及用以驅動顯示面板110之一顯示驅動晶片120，其中，顯示面板110可為一液晶顯示面板、一微發光二極體顯示面板、一次毫米發光二極體顯示面板、一量子點發光二極體顯示面板或一有機發光二極體顯示面板。Please refer to FIG. 2 , which shows a block diagram of an embodiment of the display device of the present invention. As shown in Figure 2, a display device 100 has a display panel 110 and a display driver chip 120 for driving the display panel 110, wherein the display panel 110 can be a liquid crystal display panel, a micro light emitting diode display panel, A millimeter light emitting diode display panel, a quantum dot light emitting diode display panel or an organic light emitting diode display panel.

顯示驅動晶片120具有一色溫過渡處理單元121及一驅動單元122，其中，色溫過渡處理單元121具有一色溫至RGB調整係數對照表以對多幀顯示資料(R IN、G IN、B IN)進行一色溫過渡處理程序以產生多幀顯示輸出資料(R OUT、G OUT、B OUT)；以及驅動單元122係用以依顯示輸出資料(R OUT、G OUT、B OUT)產生像素電壓以驅動顯示面板110。該色溫過渡處理程序包括： (一)色溫過渡處理單元121依一起始色溫T1、一目標色溫T2和一內插點數N自該色溫至RGB調整係數對照表中讀取N+2組調整係數(R C、G C、B C)，N為正整數，且R C、G C、B C均為正實數，其中，該色溫至RGB調整係數對照表中之各組對應數據均取自色度平面上之一黑體軌跡或普朗克軌跡；以及 (二)色溫過渡處理單元121利用所述N+2組調整係數(R C、G C、B C)對應調整N+2幀顯示資料(R IN、G IN、B IN)以產生N+2幀顯示輸出資料(R OUT、G OUT、B OUT)，其中，R OUT= R C* R IN，G OUT= G C* G IN，B OUT= B C* B IN，R IN、G IN、B IN均為非負整數，R OUT、G OUT、B OUT均為非負實數。 The display driver chip 120 has a color temperature transition processing unit 121 and a driving unit 122, wherein the color temperature transition processing unit 121 has a color temperature to RGB adjustment coefficient comparison table to perform multi-frame display data (R IN , G IN , B IN ) A color temperature transition processing program to generate multiple frames of display output data (R OUT , G OUT , B OUT ); and the driving unit 122 is used to generate pixel voltages according to the display output data (R OUT , G OUT , B OUT ) to drive the display Panel 110. The color temperature transition processing procedure includes: (1) The color temperature transition processing unit 121 reads N+2 sets of adjustment coefficients from the color temperature to RGB adjustment coefficient comparison table according to an initial color temperature T1, a target color temperature T2 and an interpolation point N. (R C , G C , B C ), N is a positive integer, and R C , G C , B C are all positive real numbers, where the corresponding data of each group in the color temperature to RGB adjustment coefficient comparison table are taken from the color one of the blackbody locus or Planckian locus on the degree plane; and (2) the color temperature transition processing unit 121 uses the N+2 sets of adjustment coefficients (R C , G C , B C ) to correspondingly adjust N+2 frames of display data ( R IN , G IN , B IN ) to generate N+2 frames of display output data (R OUT , G OUT , B OUT ), where R OUT = R C * R IN , G OUT = G C * G IN , B OUT = B C * B IN , R IN , G IN , and B IN are all non-negative integers, and R OUT , G OUT , and B OUT are all non-negative real numbers.

另外，色溫過渡處理單元121可依一致能信號EN啟始該色溫過渡處理程序。In addition, the color temperature transition processing unit 121 can start the color temperature transition processing procedure according to the enable signal EN.

另外，色溫過渡處理單元121亦可在該色溫至RGB調整係數對照表之不同色溫點間進行線性內插以增加色溫點的數目。In addition, the color temperature transition processing unit 121 can also perform linear interpolation between different color temperature points in the color temperature to RGB adjustment coefficient table to increase the number of color temperature points.

請參照表1，其為該色溫至RGB調整係數對照表之一實施例。如表1所示，在色溫為4000度K時，其所對應之一組調整係數(R C、G C、B C) = (255/255、209/255、163/255)，假設顯示資料(R IN、G IN、B IN) = (125、125、125)，則調整後的顯示輸出資料(R OUT、G OUT、B OUT) = (125、125*209/255、125*163/255)；在色溫為4100度K時，其所對應之一組調整係數(R C、G C、B C) = (255/255、211/255、168/255)，假設顯示資料(R IN、G IN、B IN) = (125、125、125)，則調整後的顯示輸出資料(R OUT、G OUT、B OUT) = (125、125*211/255、125*168/255)；在色溫為4200度K時，其所對應之一組調整係數(R C、G C、B C) = (255/255、213/255、173/255)，假設顯示資料(R IN、G IN、B IN) = (125、125、125)，則調整後的顯示輸出資料(R OUT、G OUT、B OUT) = (125、125*213/255、125*173/255)；依此類推。 表1 色溫(K) R C G C B C 4000 255/255 209/255 163/255 4100 255/255 211/255 168/255 4200 255/255 213/255 173/255 4300 255/255 215/255 177/255 4400 255/255 217/255 182/255 4500 255/255 219/255 186/255 4600 255/255 221/255 190/255 4700 255/255 223/255 194/255 4800 255/255 225/255 198/255 Please refer to Table 1, which is an embodiment of the color temperature to RGB adjustment coefficient comparison table. As shown in Table 1, when the color temperature is 4000 degrees K, the corresponding set of adjustment coefficients (R C , G C , B C ) = (255/255, 209/255, 163/255), assuming the display data (R IN , G IN , B IN ) = (125, 125, 125), then the adjusted display output data (R OUT , G OUT , B OUT ) = (125, 125*209/255, 125*163/ 255); when the color temperature is 4100 degrees K, its corresponding set of adjustment coefficients (R C , G C , B C ) = (255/255, 211/255, 168/255), assuming that the display data (R IN , G IN , B IN ) = (125, 125, 125), then the adjusted display output data (R OUT , G OUT , B OUT ) = (125, 125*211/255, 125*168/255); When the color temperature is 4200 degrees K, the corresponding set of adjustment coefficients (R C , G C , B C ) = (255/255, 213/255, 173/255), assuming that the display data (R IN , G IN , B IN ) = (125, 125, 125), then the adjusted display output data (R OUT , G OUT , B OUT ) = (125, 125*213/255, 125*173/255); and so on . Table 1 color temperature(K) R C G C B C 4000 255/255 209/255 163/255 4100 255/255 211/255 168/255 4200 255/255 213/255 173/255 4300 255/255 215/255 177/255 4400 255/255 217/255 182/255 4500 255/255 219/255 186/255 4600 255/255 221/255 190/255 4700 255/255 223/255 194/255 4800 255/255 225/255 198/255

另外，假設起始色溫T1 = 4000度K，目標色溫T2 = 4800度K，內插點數N = 7，則會有9幀顯示資料(R IN、G IN、B IN)各經一組不同的調整係數(R C、G C、B C)調整成9幀顯示輸出資料(R OUT、G OUT、B OUT)以產生一良好的色溫過渡顯示效果。 In addition, assuming that the initial color temperature T1 = 4000 degrees K, the target color temperature T2 = 4800 degrees K, and the number of interpolation points N = 7, there will be 9 frames of display data (R IN , G IN , B IN ) each of which is different from each other. The adjustment coefficients (R C , G C , B C ) are adjusted to 9 frames of display output data (R OUT , G OUT , B OUT ) to produce a good color temperature transition display effect.

依上述的說明可知，本發明揭示了一種色溫過渡畫面顯示方法。請參照圖3，其繪示本發明之色溫過渡畫面顯示方法之一實施例之流程圖，其係由一顯示驅動晶片實現。如圖3所示，該色溫過渡畫面顯示方法包括：依一起始色溫、一目標色溫和一內插點數N自一色溫至RGB調整係數對照表中讀取N+2組調整係數(R C、G C、B C)，N為正整數，且R C、G C、B C均為正實數，其中，該色溫至RGB調整係數對照表中之各組對應數據均取自色度平面上之一黑體軌跡或普朗克軌跡(步驟a)；以及利用所述N+2組調整係數(R C、G C、B C)對應調整N+2幀顯示資料(R IN、G IN、B IN)以產生N+2幀顯示輸出資料(R OUT、G OUT、B OUT)，其中， R OUT= R C* R IN，G OUT= G C* G IN，B OUT= B C* B IN，R IN、G IN、B IN均為非負整數，R OUT、G OUT、B OUT均為非負實數(步驟b)。 According to the above description, the present invention discloses a color temperature transition image display method. Please refer to FIG. 3 , which shows a flowchart of an embodiment of a color temperature transition screen display method of the present invention, which is realized by a display driver chip. As shown in FIG. 3 , the method for displaying a color temperature transition picture includes: reading N+2 sets of adjustment coefficients (R C , G C , B C ), N is a positive integer, and R C , G C , B C are all positive real numbers, where the corresponding data of each group in the color temperature to RGB adjustment coefficient comparison table are taken from the chromaticity plane One of the blackbody locus or Planckian locus (step a); and using the N+2 sets of adjustment coefficients (R C , G C , B C ) to correspondingly adjust N+2 frames of display data (R IN , G IN , B IN ) to generate N+2 frames of display output data (R OUT , G OUT , B OUT ), where, R OUT = R C * R IN , G OUT = G C * G IN , B OUT = B C * B IN , R IN , G IN , B IN are all non-negative integers, and R OUT , G OUT , B OUT are all non-negative real numbers (step b).

在上述的步驟中，該顯示驅動晶片可依一致能信號啟始該色溫過渡畫面顯示方法。In the above steps, the display driver chip can start the color temperature transition picture display method according to an enable signal.

另外，該色溫過渡畫面顯示方法亦可在該色溫至RGB調整係數對照表之不同色溫點間進行線性內插以增加色溫點的數目。In addition, the color temperature transition image display method can also perform linear interpolation between different color temperature points in the color temperature to RGB adjustment coefficient table to increase the number of color temperature points.

依上述的說明，本發明進一步提出一種資訊處理裝置。請參照圖4，其繪示本發明之資訊處理裝置之一實施例的方塊圖。如圖4所示，一資訊處理裝置200具有一中央處理單元210及一顯示裝置220，其中，顯示裝置220係由顯示裝置100實現，且中央處理單元210係用以與顯示裝置220通信。另外，資訊處理裝置200可為一智慧型手持裝置、一攜帶型電腦、一穿戴裝置、一車載電腦或一門禁系統。According to the above description, the present invention further provides an information processing device. Please refer to FIG. 4 , which shows a block diagram of an embodiment of an information processing device of the present invention. As shown in FIG. 4 , an information processing device 200 has a central processing unit 210 and a display device 220 , wherein the display device 220 is realized by the display device 100 , and the central processing unit 210 is used for communicating with the display device 220 . In addition, the information processing device 200 can be a smart handheld device, a portable computer, a wearable device, a vehicle computer or an access control system.

藉由前述所揭露的設計，本發明乃具有以下的優點： 一、本發明之色溫過渡畫面顯示方法可藉由在色度平面之一黑體軌跡或普朗克軌跡上間隔設定多個色溫點以產生與多個色溫對應之多個RGB調整係數，並依該些RGB調整係數對應調整連續顯示之多幀畫面的RGB資料，從而在色溫調整的過程中避免畫面出現閃爍現象。 二、本發明之顯示驅動晶片可藉由前述的色溫過渡畫面顯示方法在色溫調整的過程中避免一顯示幕出現閃爍現象。 三、本發明之顯示裝置可藉由前述的色溫過渡畫面顯示方法在色溫調整的過程中避免其顯示幕出現閃爍現象。 四、本發明之資訊處理裝置可藉由前述的色溫過渡畫面顯示方法在色溫調整的過程中避免其顯示幕出現閃爍現象。 With the design disclosed above, the present invention has the following advantages: 1. The color temperature transition screen display method of the present invention can generate multiple RGB adjustment coefficients corresponding to multiple color temperatures by setting multiple color temperature points at intervals on a blackbody locus or Planckian locus of the chromaticity plane, and according to the These RGB adjustment coefficients correspond to the adjustment of the RGB data of the continuously displayed multi-frame images, so as to avoid flickering of the images during the color temperature adjustment process. 2. The display driver chip of the present invention can avoid the flickering phenomenon of a display screen during the color temperature adjustment process by the above-mentioned color temperature transition screen display method. 3. The display device of the present invention can avoid flickering on the display screen during the color temperature adjustment process by using the above-mentioned color temperature transition screen display method. 4. The information processing device of the present invention can avoid flickering on the display screen during the color temperature adjustment process by using the above-mentioned color temperature transition screen display method.

本案所揭示者，乃較佳實施例，舉凡局部之變更或修飾而源於本案之技術思想而為熟習該項技藝之人所易於推知者，俱不脫本案之專利權範疇。What is disclosed in this case is a preferred embodiment. For example, any partial changes or modifications derived from the technical ideas of this case and easily deduced by those who are familiar with the technology are within the scope of the patent right of this case.

綜上所陳，本案無論目的、手段與功效，皆顯示其迥異於習知技術，且其首先發明合於實用，確實符合發明之專利要件，懇請　貴審查委員明察，並早日賜予專利俾嘉惠社會，是為至禱。To sum up, regardless of the purpose, means and efficacy of this case, it shows that it is very different from the conventional technology, and its first invention is practical, and it does meet the patent requirements of the invention. I implore your review committee to understand it clearly and grant a patent as soon as possible. Society is for the Most Prayer.

100：顯示裝置 110:顯示面板 120:顯示驅動晶片 121:色溫過渡處理單元 122:驅動單元 200:資訊處理裝置 210:中央處理單元 220:顯示裝置 步驟a:依一起始色溫、一目標色溫和一內插點數N自一色溫至RGB調整係數對照表中讀取N+2組調整係數(R C、G C、B C)，N為正整數，且R C、G C、B C均為正實數，其中，該色溫至RGB調整係數對照表中之各組對應數據均取自色度平面上之一黑體軌跡或普朗克軌跡 步驟b:利用所述N+2組調整係數(R C、G C、B C)對應調整N+2幀顯示資料(R IN、G IN、B IN)以產生N+2幀顯示輸出資料(R OUT、G OUT、B OUT)，其中， R OUT= R C* R IN，G OUT= G C* G IN，B OUT= B C* B IN，R IN、G IN、B IN均為非負整數，R OUT、G OUT、B OUT均為非負實數 100: display device 110: display panel 120: display driver chip 121: color temperature transition processing unit 122: drive unit 200: information processing device 210: central processing unit 220: display device Step a: according to an initial color temperature, a target color temperature and a The number of interpolation points N reads N+2 sets of adjustment coefficients (R C , G C , B C ) from a color temperature to RGB adjustment coefficient comparison table, N is a positive integer, and R C , G C , and B C are all Positive real number, wherein, each group of corresponding data in the color temperature to RGB adjustment coefficient comparison table is all taken from a blackbody locus or Planckian locus on the chromaticity plane. Step b: Utilize the N+2 groups of adjustment coefficients (R C , G C , B C ) correspondingly adjust N+2 frames of display data (R IN , G IN , B IN ) to generate N+2 frames of display output data (R OUT , G OUT , B OUT ), where, R OUT = R C * R IN , G OUT = G C * G IN , B OUT = B C * B IN , R IN , G IN , B IN are all non-negative integers, R OUT , G OUT , B OUT are all non-negative real numbers

圖1繪示一現有色溫過渡畫面顯示方法在一色度平面上之色溫過渡軌跡。 圖2繪示本發明之顯示裝置之一實施例的方塊圖。 圖3繪示本發明之色溫過渡畫面顯示方法之一實施例之流程圖。 圖4繪示本發明之資訊處理裝置之一實施例的方塊圖。 FIG. 1 shows a color temperature transition locus on a chromaticity plane in a conventional color temperature transition picture display method. FIG. 2 shows a block diagram of an embodiment of the display device of the present invention. FIG. 3 is a flow chart of an embodiment of a color temperature transition image display method of the present invention. FIG. 4 is a block diagram of an embodiment of an information processing device of the present invention.

步驟a:依一起始色溫、一目標色溫和一內插點數N自一色溫至RGB調整係數對照表中讀取N+2組調整係數(RC、GC、BC)，N為正整數，且RC、GC、BC均為正實數，其中，該色溫至RGB調整係數對照表中之各組對應數據均取自色度平面上之一黑體軌跡或普朗克軌跡 Step a: Read N+2 sets of adjustment coefficients (R C , G C , B C ) from a color temperature to RGB adjustment coefficient comparison table according to an initial color temperature, a target color temperature, and an interpolation point N, where N is positive Integer, and R C , G C , and B C are all positive real numbers, where the corresponding data of each group in the color temperature to RGB adjustment coefficient comparison table are all taken from a black body locus or Planck locus on the chromaticity plane

步驟b:利用所述N+2組調整係數(RC、GC、BC)對應調整N+2幀顯示資料(RIN、GIN、BIN)以產生N+2幀顯示輸出資料(ROUT、GOUT、BOUT)，其中，ROUT=RC * RIN， GOUT=GC * GIN，BOUT=BC * BIN，RIN、GIN、BIN均為非負整數，ROUT、GOUT、BOUT均為非負實數 Step b: using the N+2 sets of adjustment coefficients (R C , G C , B C ) to correspondingly adjust N+2 frames of display data (R IN , G IN , B IN ) to generate N+2 frames of display output data ( R OUT , G OUT , B OUT ), where, R OUT =R C * R IN , G OUT =G C * G IN , B OUT =B C * B IN , R IN , G IN , B IN are non-negative Integer, R OUT , G OUT , B OUT are non-negative real numbers

Claims (14)

一種色溫過渡畫面顯示方法，係由一顯示驅動晶片實現，其包括：依一起始色溫、一目標色溫和一內插點數N自一色溫至RGB調整係數對照表中讀取N+2組調整係數(RC、GC、BC)，N為正整數，且RC、GC、BC均為正實數，其中，該色溫至RGB調整係數對照表中之各組對應數據均取自色度平面上之一黑體軌跡；以及利用所述N+2組調整係數(RC、GC、BC)對應調整N+2幀顯示資料(RIN、GIN、BIN)以產生N+2幀顯示輸出資料(ROUT、GOUT、BOUT)，其中，ROUT=RC * RIN，GOUT=GC * GIN，BOUT=BC * BIN，RIN、GIN、BIN均為非負整數，ROUT、GOUT、BOUT均為非負實數。 A color temperature transition picture display method is realized by a display driver chip, which includes: reading N+2 groups of adjustments from a color temperature to RGB adjustment coefficient comparison table according to an initial color temperature, a target color temperature, and an interpolation point N Coefficients (R C , G C , B C ), N is a positive integer, and R C , G C , B C are all positive real numbers, where the corresponding data of each group in the color temperature to RGB adjustment coefficient comparison table are taken from A blackbody locus on the chromaticity plane; and using the N+2 sets of adjustment coefficients (R C , G C , B C ) to correspondingly adjust N+2 frames of display data (R IN , G IN , B IN ) to generate N +2 frames display output data (R OUT , G OUT , B OUT ), among them, R OUT =R C * R IN , G OUT =G C * G IN , B OUT = B C * B IN , R IN , G IN and B IN are both non-negative integers, and R OUT , G OUT and B OUT are all non-negative real numbers. 如申請專利範圍第1項所述之色溫過渡畫面顯示方法，其中，該顯示驅動晶片係依一致能信號啟始該色溫過渡畫面顯示方法。 The method for displaying a color temperature transitional picture as described in item 1 of the scope of the patent application, wherein the display driver chip starts the displaying method for a color temperature transitional picture according to an enable signal. 如申請專利範圍第1項所述之色溫過渡畫面顯示方法，其進一步包括在該色溫至RGB調整係數對照表之不同色溫點間進行線性內插以增加色溫點的數目。 The color temperature transition screen display method described in item 1 of the scope of the patent application further includes performing linear interpolation between different color temperature points in the color temperature to RGB adjustment coefficient table to increase the number of color temperature points. 一種顯示驅動晶片，其具有一色溫過渡處理單元，該色溫過渡處理單元具有一色溫至RGB調整係數對照表以對多幀顯示資料(RIN、GIN、BIN)進行一色溫過渡處理程序以產生多幀顯示輸出資料(ROUT、GOUT、BOUT)，RIN、GIN、BIN均為非負整數，ROUT、GOUT、BOUT均為非負實數，且該色溫過渡處理程序包括： 該色溫過渡處理單元依一起始色溫、一目標色溫和一內插點數N自該色溫至RGB調整係數對照表中讀取N+2組調整係數(RC、GC、BC)，N為正整數，且RC、GC、BC均為正實數，其中，該色溫至RGB調整係數對照表中之各組對應數據均取自色度平面上之一黑體軌跡；以及該色溫過渡處理單元利用所述N+2組調整係數(RC、GC、BC)對應調整N+2幀顯示資料(RIN、GIN、BIN)以產生N+2幀顯示輸出資料(ROUT、GOUT、BOUT)，其中，ROUT=RC * RIN，GOUT=GC * GIN，BOUT=BC * BIN，RIN、GIN、BIN均為非負整數，ROUT、GOUT、BOUT均為非負實數。 A display driver chip, which has a color temperature transition processing unit, the color temperature transition processing unit has a color temperature to RGB adjustment coefficient comparison table to perform a color temperature transition processing program for multi-frame display data (R IN , G IN , B IN ) Generate multi-frame display output data (R OUT , G OUT , B OUT ), R IN , G IN , B IN are non-negative integers, R OUT , G OUT , B OUT are non-negative real numbers, and the color temperature transition processing program includes : The color temperature transition processing unit reads N+2 sets of adjustment coefficients (R C , G C , B C ) from the color temperature to RGB adjustment coefficient comparison table according to an initial color temperature, a target color temperature, and an interpolation point N, N is a positive integer, and R C , G C , and B C are all positive real numbers, where the corresponding data of each group in the color temperature to RGB adjustment coefficient comparison table are all taken from a blackbody locus on the chromaticity plane; and the color temperature The transition processing unit uses the N+2 sets of adjustment coefficients (R C , G C , B C ) to correspondingly adjust N+2 frames of display data (R IN , G IN , B IN ) to generate N+2 frames of display output data ( R OUT , G OUT , B OUT ), where, R OUT =R C * R IN , G OUT =G C * G IN , B OUT =B C * B IN , R IN , G IN , B IN are non-negative Integer, R OUT , G OUT , B OUT are all non-negative real numbers. 如申請專利範圍第4項所述之顯示驅動晶片，其進一步具有一驅動單元，該驅動單元係用以依所述顯示輸出資料(ROUT、GOUT、BOUT)產生對應的像素電壓以驅動一顯示面板。 The display driver chip as described in item 4 of the scope of the patent application further has a driving unit, which is used to generate corresponding pixel voltages according to the display output data (R OUT , G OUT , B OUT ) to drive A display panel. 如申請專利範圍第4項所述之顯示驅動晶片，其中，該色溫過渡處理單元係依一致能信號啟始該色溫過渡畫面顯示程序。 The display driver chip described in claim 4 of the scope of the patent application, wherein the color temperature transition processing unit starts the color temperature transition image display process according to an enable signal. 如申請專利範圍第4項所述之顯示驅動晶片，其中，該色溫過渡畫面顯示程序進一步包括在該色溫至RGB調整係數對照表之不同色溫點間進行線性內插以增加色溫點的數目。 The display driver chip described in item 4 of the scope of the patent application, wherein the color temperature transition screen display program further includes performing linear interpolation between different color temperature points in the color temperature to RGB adjustment coefficient table to increase the number of color temperature points. 一種顯示裝置，其具有一顯示面板及用以驅動該顯示面板之一顯示驅動晶片，該顯示驅動晶片具有一色溫過渡處理單元，該色溫過渡處理單元具有一色溫至RGB調整係數對照表以對多幀顯示資料(RIN、GIN、BIN)進行一色溫過渡處理程序以產生多幀顯示輸出資料(ROUT、GOUT、BOUT)，RIN、GIN、BIN均為非負整數，ROUT、GOUT、BOUT均為非負實數，且該色溫過渡處理程序包括： 該色溫過渡處理單元依一起始色溫、一目標色溫和一內插點數N自該色溫至RGB調整係數對照表中讀取N+2組調整係數(RC、GC、BC)，N為正整數，且RC、GC、BC均為正實數，其中，該色溫至RGB調整係數對照表中之各組對應數據均取自色度平面上之一黑體軌跡；以及該色溫過渡處理單元利用所述N+2組調整係數(RC、GC、BC)對應調整N+2幀顯示資料(RIN、GIN、BIN)以產生N+2幀顯示輸出資料(ROUT、GOUT、BOUT)，其中，ROUT=RC * RIN，GOUT=GC * GIN，BOUT=BC * BIN，RIN、GIN、BIN均為非負整數，ROUT、GOUT、BOUT均為非負實數。 A display device, which has a display panel and a display driver chip for driving the display panel, the display driver chip has a color temperature transition processing unit, and the color temperature transition processing unit has a color temperature to RGB adjustment coefficient comparison table for multiple Frame display data (R IN , G IN , B IN ) undergo a color temperature transition process to generate multi-frame display output data (R OUT , G OUT , B OUT ), R IN , G IN , B IN are all non-negative integers, R OUT , G OUT , and B OUT are all non-negative real numbers, and the color temperature transition processing program includes: The color temperature transition processing unit adjusts the coefficient comparison table from the color temperature to RGB according to an initial color temperature, a target color temperature, and an interpolation point N Read N+2 sets of adjustment coefficients (R C , G C , B C ), N is a positive integer, and R C , G C , and B C are all positive real numbers, where the color temperature is included in the RGB adjustment coefficient comparison table Each set of corresponding data is taken from a blackbody locus on the chromaticity plane; and the color temperature transition processing unit uses the N+2 sets of adjustment coefficients (R C , G C , B C ) to correspondingly adjust N+2 frames of display data (R IN , G IN , B IN ) to generate N+2 frames of display output data (R OUT , G OUT , B OUT ), where R OUT =R C * R IN , G OUT =G C * G IN , B OUT =B C * B IN , R IN , G IN , and B IN are all non-negative integers, and R OUT , G OUT , and B OUT are all non-negative real numbers. 如申請專利範圍第8項所述之顯示裝置，其中，該顯示驅動晶片進一步具有一驅動單元，該驅動單元係用以依所述顯示輸出資料(ROUT、GOUT、BOUT)產生對應的像素電壓以驅動該顯示面板。 The display device described in claim 8 of the scope of the patent application, wherein the display driver chip further has a driver unit, which is used to generate corresponding output data (R OUT , G OUT , B OUT ) according to the display pixel voltage to drive the display panel. 如申請專利範圍第8項所述之顯示裝置，其中，該色溫過渡處理單元係依一致能信號啟始該色溫過渡畫面顯示程序。 The display device described in claim 8 of the patent application, wherein the color temperature transition processing unit starts the color temperature transition image display process according to an enable signal. 如申請專利範圍第8項所述之顯示裝置，其中，該色溫過渡畫面顯示程序進一步包括在該色溫至RGB調整係數對照表之不同色溫點間進行線性內插以增加色溫點的數目。 The display device described in claim 8 of the patent application, wherein the color temperature transition image display program further includes performing linear interpolation between different color temperature points in the color temperature to RGB adjustment coefficient table to increase the number of color temperature points. 如申請專利範圍第8項所述之顯示裝置，其中，該顯示面板係由一液晶顯示面板、一微發光二極體顯示面板、一次毫米發光二極體顯示面板、一量子點發光二極體顯示面板和一有機發光二極體顯示面板所組成群組所選擇的一種顯示面板。 The display device described in item 8 of the scope of the patent application, wherein the display panel is composed of a liquid crystal display panel, a micro light emitting diode display panel, a sub-millimeter light emitting diode display panel, a quantum dot light emitting diode A display panel selected from the group formed by the display panel and an organic light emitting diode display panel. 一種資訊處理裝置，其具有一中央處理單元及如申請專利範圍第8至12項中任一項所述之顯示裝置，其中，該中央處理單元係用以與顯示裝置通信。An information processing device, which has a central processing unit and a display device as described in any one of items 8 to 12 of the scope of the patent application, wherein the central processing unit is used to communicate with the display device. 如申請專利範圍第13項所述之資訊處理裝置，其係由一智慧型手持裝置、一攜帶型電腦、一穿戴裝置、一車載電腦和一門禁系統所組成之群組所選擇的一種電子裝置。The information processing device described in item 13 of the patent application is an electronic device selected from a group consisting of a smart handheld device, a portable computer, a wearable device, a vehicle computer and an access control system .
TW111135201A 2022-09-16 2022-09-16 Color temperature transition screen display method, display driver chip, display device and information processing device TWI811110B (en)

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Publication number Priority date Publication date Assignee Title
TW201443866A (en) * 2013-05-13 2014-11-16 Asustek Comp Inc Color temperature adjusting method of display device
TWI541785B (en) * 2014-12-23 2016-07-11 敦泰電子股份有限公司 Optimization method and system of lcd white balance real-time selection
TW202111685A (en) * 2019-07-31 2021-03-16 荷蘭商露明控股公司 Control design for perceptually uniform color-tuning

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TW201443866A (en) * 2013-05-13 2014-11-16 Asustek Comp Inc Color temperature adjusting method of display device
TWI541785B (en) * 2014-12-23 2016-07-11 敦泰電子股份有限公司 Optimization method and system of lcd white balance real-time selection
TW202111685A (en) * 2019-07-31 2021-03-16 荷蘭商露明控股公司 Control design for perceptually uniform color-tuning

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