TWI635481B - Display and color correction method - Google Patents
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Abstract
本發明揭露一種顯示裝置及色彩校正方法。顯示裝置包括顯示面板及背光模組。色彩校正方法包括下列步驟：(a)感測背光模組之即時背光強度；(b)當即時背光強度與標準背光強度不同時，提高背光模組之背光強度；(c)感測背光模組之補償後背光強度並依據補償後背光強度與第一面板色彩特徵資訊估算出顯示面板之第一即時色彩資訊，其中第一面板色彩特徵資訊對應於顯示面板的穿透特性；以及(d)依據第一即時色彩資訊估算出顯示面板所需之第一色彩增益補償值並依據第一色彩增益補償值對顯示面板的色彩進行補償後顯示影像。 The invention discloses a display device and a color correction method. The display device includes a display panel and a backlight module. The color correction method comprises the following steps: (a) sensing the instantaneous backlight intensity of the backlight module; (b) improving the backlight intensity of the backlight module when the instant backlight intensity is different from the standard backlight intensity; (c) sensing the backlight module The compensated backlight intensity is used to estimate the first instant color information of the display panel according to the compensated backlight intensity and the first panel color feature information, wherein the first panel color feature information corresponds to the penetration characteristic of the display panel; and (d) The first instant color information estimates a first color gain compensation value required by the display panel and compensates the color of the display panel according to the first color gain compensation value to display the image.
Description
本發明係與色彩校正有關，尤其是關於一種顯示裝置及應用於顯示裝置之色彩校正方法。 The present invention relates to color correction, and more particularly to a display device and a color correction method applied to the display device.
目前的顯示裝置中之背光模組發出的背光常會受到驅動電流或長時間使用造成衰退等因素之影響而產生變化，導致顯示面板前方發光的亮度及色度亦隨之改變而偏離了原本正常的色彩表現，也連帶使得人眼觀看顯示裝置時之感受變差。 The backlight emitted by the backlight module in the current display device is often affected by factors such as driving current or long-term use causing degradation, and the brightness and chromaticity of the front side of the display panel also change and deviate from the original normal. The color performance is also accompanied by a feeling that the human eye feels worse when viewing the display device.
雖然目前的顯示裝置可透過外部的校色器量測顯示面板前方之灰階與三原色光的色彩資訊之方式進行其顯示色彩之校正，但此一作法不僅相當耗時且程序繁複，其色彩校正的效果往往會隨著外部的校色器本身所能提供的量測精確度高低而有相當大的落差，故目前的色彩校正方式仍難以持續地提供良好且穩定的色彩校正效果，亟待克服。 Although the current display device can perform the correction of the display color by means of an external color meter measuring the gray level of the front of the display panel and the color information of the three primary colors, this method is not only time-consuming and complicated, and the color correction is performed. The effect tends to be quite large with the accuracy of the external color correction device itself, so the current color correction method is still difficult to provide a good and stable color correction effect, which needs to be overcome.
有鑑於此，本發明提出一種顯示裝置及色彩校正方法，以有效解決先前技術所遭遇到之上述問題。 In view of this, the present invention provides a display device and a color correction method to effectively solve the above problems encountered in the prior art.
依據本發明之一具體實施例為一種色彩校正方法。 於此實施例中，色彩校正方法應用於顯示裝置。顯示裝置包括顯示面板及背光模組。色彩校正方法包括下列步驟：(a)感測背光模組之即時背光強度；(b)當即時背光強度與標準背光強度不同時，提高背光模組之背光強度；(c)感測背光模組之補償後背光強度並依據補償後背光強度與第一面板色彩特徵資訊估算出顯示面板之第一即時色彩資訊，第一面板色彩特徵資訊對應於顯示面板的穿透特性；以及(d)依據第一即時色彩資訊估算出顯示面板所需之第一色彩增益補償值並依據第一色彩增益補償值對顯示面板的色彩進行補償後顯示影像。 A color correction method in accordance with an embodiment of the present invention. In this embodiment, the color correction method is applied to a display device. The display device includes a display panel and a backlight module. The color correction method comprises the following steps: (a) sensing the instantaneous backlight intensity of the backlight module; (b) improving the backlight intensity of the backlight module when the instant backlight intensity is different from the standard backlight intensity; (c) sensing the backlight module The compensated backlight intensity estimates the first instant color information of the display panel according to the compensated backlight intensity and the first panel color feature information, the first panel color feature information corresponds to the penetration characteristic of the display panel; and (d) according to the An instant color information estimates a first color gain compensation value required by the display panel and compensates the color of the display panel according to the first color gain compensation value to display an image.
於一實施例中，第一面板色彩特徵資訊係於顯示裝置出廠時，依下列步驟產生：(e1)當背光模組發出第一背光至顯示面板時，於顯示面板前感測顯示面板之第一色彩資訊；(e2)當背光模組發出第二背光至顯示面板時，於顯示面板前感測顯示面板之第二色彩資訊，其中第一背光與第二背光係分別具有不同的背光強度；以及(e3)依據第一背光、第一色彩資訊、第二背光與第二色彩資訊計算第一面板色彩特徵資訊。 In one embodiment, the first panel color feature information is generated when the display device is shipped from the factory, and is generated according to the following steps: (e1) when the backlight module sends the first backlight to the display panel, sensing the display panel in front of the display panel (e2) when the backlight module emits the second backlight to the display panel, sensing the second color information of the display panel in front of the display panel, wherein the first backlight and the second backlight system respectively have different backlight intensities; And (e3) calculating the first panel color feature information according to the first backlight, the first color information, the second backlight, and the second color information.
於一實施例中，色彩校正方法更包括：於顯示面板前提供色度儀，當背光模組發出具有不同背光強度的背光至顯示面板時，色度儀量測顯示面板上之純白、純紅、純藍與純綠的強度值。 In an embodiment, the color correction method further comprises: providing a colorimeter in front of the display panel, and when the backlight module emits a backlight with different backlight intensity to the display panel, the colorimeter measures the white and pure red on the display panel. , the intensity values of pure blue and pure green.
於一實施例中，色度儀測得的顯示面板上之純紅、純藍與純綠的強度值係為第一面板色彩特徵資訊與背光模組發出 的背光強度的乘積。 In an embodiment, the intensity values of pure red, pure blue, and pure green on the display panel measured by the colorimeter are the first panel color feature information and the backlight module sends out The product of the backlight intensity.
於一實施例中，第一面板色彩特徵資訊為特徵矩陣且第一面板色彩特徵資訊包括顯示面板的色彩資訊與背光模組的背光強度之三色刺激值之間的對應關係。 In one embodiment, the first panel color feature information is a feature matrix and the first panel color feature information includes a correspondence between the color information of the display panel and the tri-color stimulus value of the backlight module backlight intensity.
於一實施例中，步驟(b)更包括：依據第一面板色彩特徵資訊、即時背光強度與標準背光強度估算出顯示面板之第二即時色彩資訊；依據該第二即時色彩資訊估算出顯示面板所需之第二色彩增益補償值及相對應之第一亮度變化量；以及依據第一亮度變化量提高背光模組之背光強度。 In an embodiment, the step (b) further includes: estimating a second instant color information of the display panel according to the first panel color feature information, the instant backlight intensity, and the standard backlight intensity; and estimating the display panel according to the second instant color information. The required second color gain compensation value and the corresponding first brightness change amount; and increasing the backlight intensity of the backlight module according to the first brightness change amount.
於一實施例中，步驟(b)更包括：依據標準背光強度與即時背光強度的差值，提高背光模組之背光強度。 In an embodiment, the step (b) further comprises: increasing the backlight intensity of the backlight module according to the difference between the standard backlight intensity and the instantaneous backlight intensity.
於一實施例中，色彩校正方法還包括：當顯示裝置經長時間使用後，重新執行步驟(e1)~(e3)而得到第二面板色彩特徵資訊；以及以第二面板色彩特徵資訊取代原來的第一面板色彩特徵資訊。 In an embodiment, the color correction method further includes: after the display device is used for a long time, performing steps (e1) to (e3) to obtain the second panel color feature information; and replacing the original color feature information with the second panel. The first panel color feature information.
依據本發明之另一具體實施例為一種顯示裝置。於此實施例中，顯示裝置包括顯示面板、背光模組、第一感測單元及處理模組。背光模組用以發出背光至顯示面板。第一感測單元設置於背光模組之一側，用以感測背光模組之即時背光強度。處理模組分別耦接顯示面板、背光模組及第一感測單元，當即時背光強度與標準背光強度不同時，處理模組提高背光模組之背光強度。其中，第一感測單元還感測背光模組之補償後背光強度，處 理模組依據補償後背光強度與第一面板色彩特徵資訊估算出顯示面板之第一即時色彩資訊，其中第一面板色彩特徵資訊對應於顯示面板的穿透特性，處理模組依據第一即時色彩資訊估算出顯示面板所需之第一色彩增益補償值並依據第一色彩增益補償值對顯示面板的色彩進行補償後顯示影像。 Another embodiment in accordance with the present invention is a display device. In this embodiment, the display device includes a display panel, a backlight module, a first sensing unit, and a processing module. The backlight module is used to emit a backlight to the display panel. The first sensing unit is disposed on one side of the backlight module for sensing the instantaneous backlight intensity of the backlight module. The processing module is respectively coupled to the display panel, the backlight module and the first sensing unit. When the instant backlight intensity is different from the standard backlight intensity, the processing module improves the backlight intensity of the backlight module. Wherein, the first sensing unit further senses the compensated backlight intensity of the backlight module, where The module estimates the first instant color information of the display panel according to the compensated backlight intensity and the first panel color feature information, wherein the first panel color feature information corresponds to the penetration characteristic of the display panel, and the processing module is based on the first instant color The information estimates the first color gain compensation value required by the display panel and compensates the color of the display panel according to the first color gain compensation value to display the image.
相較於先前技術，本發明之顯示裝置及色彩校正方法係在背光模組的即時背光強度不同於標準背光強度時，提高背光模組發出的背光強度，並依據背光模組的補償後背光強度的三色刺激值與面板色彩特徵資訊估算出顯示面板之即時色彩資訊，再據以估算出顯示面板所需的色彩增益補償值並用以補償顯示面板的色彩後顯示影像。 Compared with the prior art, the display device and the color correction method of the present invention improve the backlight intensity emitted by the backlight module when the instant backlight intensity of the backlight module is different from the standard backlight intensity, and according to the compensated backlight intensity of the backlight module. The tristimulus value and the panel color feature information estimate the instant color information of the display panel, and then estimate the color gain compensation value required by the display panel and use it to compensate the color of the display panel to display the image.
藉此，即使背光模組發出的背光發生變化而導致顯示面板前方發光的亮度及色度偏離原本正常的色彩表現，本發明能夠判斷背光模組發出的背光出現變化而即時啟動背光補償機制並依據補償後的背光強度與面板特徵資訊估算出顯示面板所需的色彩增益補償值以補償顯示面板的色彩，藉以有效補償背光模組的色衰減，使得顯示面板前方發光的亮度及色度能夠維持原本正常的色彩表現，而讓人眼在觀看顯示裝置時能有較為舒適的感受。 Therefore, even if the backlight emitted by the backlight module changes, the brightness and chromaticity of the front side of the display panel deviate from the original normal color performance, the present invention can determine the backlight of the backlight module to change and immediately activate the backlight compensation mechanism and The compensated backlight intensity and panel feature information estimate the color gain compensation value required by the display panel to compensate the color of the display panel, thereby effectively compensating for the color attenuation of the backlight module, so that the brightness and chromaticity of the front side of the display panel can be maintained. Normal color performance, and people can have a more comfortable feeling when watching the display device.
關於本發明之優點與精神可以藉由以下的發明詳述及所附圖式得到進一步的瞭解。 The advantages and spirit of the present invention will be further understood from the following detailed description of the invention.
S1~S7、S10~S21、S31~S35‧‧‧步驟 S1~S7, S10~S21, S31~S35‧‧‧ steps
1‧‧‧顯示裝置 1‧‧‧ display device
10‧‧‧顯示面板 10‧‧‧ display panel
12‧‧‧背光模組 12‧‧‧Backlight module
14‧‧‧第一感測單元 14‧‧‧First sensing unit
16‧‧‧處理模組 16‧‧‧Processing module
18‧‧‧第二感測單元 18‧‧‧Second sensing unit
19‧‧‧儲存單元 19‧‧‧ storage unit
L‧‧‧背光 L‧‧‧Backlight
IF1‧‧‧即時背光強度 IF1‧‧‧ instant backlight intensity
IF2‧‧‧色彩資訊 IF2‧‧‧ color information
160‧‧‧處理器 160‧‧‧ processor
162‧‧‧縮放器 162‧‧‧ scaler
圖1係繪示依據本發明之一具體實施例中之顯示裝 置的功能方塊圖。 1 is a view showing a display device according to an embodiment of the present invention. Set the function block diagram.
圖2係繪示依據本發明之另一具體實施例中之顯示裝置的功能方塊圖。 2 is a functional block diagram of a display device in accordance with another embodiment of the present invention.
圖3係繪示依據本發明之另一具體實施例中之色彩校正方法的流程圖。 3 is a flow chart showing a color correction method in accordance with another embodiment of the present invention.
圖4A至圖4B係繪示依據本發明之另一具體實施例中之色彩校正方法的流程圖。 4A-4B are flow diagrams illustrating a color correction method in accordance with another embodiment of the present invention.
圖5係繪示產生面板色彩特徵資訊之一實施例的流程圖。 FIG. 5 is a flow chart showing an embodiment of generating panel color feature information.
依據本發明之一較佳具體實施例為一種顯示裝置。於此實施例中，顯示裝置係具有色彩校正功能，可使顯示裝置前方發光的亮度及色度維持正常的色彩表現，藉以讓顯示裝置顯示影像的色彩可以維持在高度近似標準的色彩，讓使用者不致因元件衰老而看到有色偏的影像。 A preferred embodiment of the invention is a display device. In this embodiment, the display device has a color correction function, which can maintain the normal color expression of the brightness and chromaticity of the front light of the display device, so that the color of the image displayed by the display device can be maintained at a height similar to the standard color, so that the use The person does not see a color-shifted image due to aging of the component.
請參照圖1，圖1係繪示此實施例中之顯示裝置的功能方塊圖。如圖1所示，顯示裝置1包括顯示面板10、背光模組12、第一感測單元14、處理模組16、第二感測單元18及儲存單元19。其中，處理模組16分別耦接顯示面板10、背光模組12、第一感測單元14、第二感測單元18及儲存單元19。其中，第一感測單元14可設置於背光模組12之一側並用以感測背光模組12所發出光的強度值與色度值；第二感測單元18可設置於顯示面板10前並用以感測顯示 面板10所發出光的強度值與色度值，第二感測單元18感測的資料可以透過外部的處理器處理後，再透過顯示裝置1的輸入介面(未圖示)傳送到處理模組16或直接將感測的原始資料由輸入介面傳送至處理模組16。 Please refer to FIG. 1. FIG. 1 is a functional block diagram of a display device in this embodiment. As shown in FIG. 1 , the display device 1 includes a display panel 10 , a backlight module 12 , a first sensing unit 14 , a processing module 16 , a second sensing unit 18 , and a storage unit 19 . The processing module 16 is coupled to the display panel 10, the backlight module 12, the first sensing unit 14, the second sensing unit 18, and the storage unit 19. The first sensing unit 14 can be disposed on one side of the backlight module 12 and used to sense the intensity value and the chromaticity value of the light emitted by the backlight module 12; the second sensing unit 18 can be disposed in front of the display panel 10 And used for sensing display The intensity value and the chromaticity value of the light emitted by the panel 10, and the data sensed by the second sensing unit 18 can be processed by an external processor, and then transmitted to the processing module through the input interface (not shown) of the display device 1. 16 or directly transfer the sensed raw data to the processing module 16 from the input interface.
於實際應用中，顯示面板10可以是任何可提供影像顯示功能的面板，例如液晶顯示面板，但不以此為限；處理模組16可以是任何可提供資料處理功能的處理器，例如微控制器(Microcontroller)，但不以此為限；儲存單元19可以是任何具有資料儲存功能的記憶體，例如隨機存取記憶體(Random Access Memory,RAM)或唯讀記憶體(Read-Only Memory,ROM)，但不以此為限；第一感測單元14及第二感測單元18可以是任何具有光亮度與色度感測功能的光感測器。 In practical applications, the display panel 10 can be any panel that can provide an image display function, such as a liquid crystal display panel, but is not limited thereto; the processing module 16 can be any processor that can provide data processing functions, such as micro control. Microcontroller, but not limited to this; storage unit 19 can be any memory with data storage function, such as random access memory (RAM) or read-only memory (Read-Only Memory, ROM), but not limited thereto; the first sensing unit 14 and the second sensing unit 18 may be any light sensor having a light luminance and chromaticity sensing function.
於此實施例中，背光模組12係用以發出背光L至顯示面板10。第一感測單元14係用以感測背光模組12發出背光L的即時背光強度IF1，並將即時背光強度IF1傳送至處理模組16。當處理模組16接收到第一感測單元14感測到的背光模組12的即時背光強度IF1時，處理模組16可將背光模組12的即時背光強度IF1與一標準背光強度進行比較，藉以判斷背光模組12發出的背光是否已產生改變而偏離標準背光強度。 In this embodiment, the backlight module 12 is used to emit the backlight L to the display panel 10. The first sensing unit 14 is configured to sense the instant backlight intensity IF1 of the backlight module 12 to emit the backlight L, and transmit the instant backlight intensity IF1 to the processing module 16. When the processing module 16 receives the instant backlight intensity IF1 of the backlight module 12 sensed by the first sensing unit 14, the processing module 16 compares the instant backlight intensity IF1 of the backlight module 12 with a standard backlight intensity. In order to determine whether the backlight emitted by the backlight module 12 has changed and deviated from the standard backlight intensity.
於實際應用中，第一感測單元14亦可感測背光模組之一補償後即時背光強度，並由處理模組16以補償後即時背光強度取代原本的標準背光強度，藉以達到更新校正標準背光強度之 目的。 In an actual application, the first sensing unit 14 can also sense the instantaneous backlight intensity after compensation of one of the backlight modules, and the processing module 16 replaces the original standard backlight intensity with the compensated instant backlight intensity to achieve the updated calibration standard. Backlight intensity purpose.
第一感測單元14感測到的背光模組12的即時背光強度IF1和第二感測單元18測到的顯示面板10前的色彩資訊IF2可以因量測儀器或量測單位不同而有其他表示形式，並且彼此之前存在數學轉換，如三維度向量的三色刺激值CIE 1931 XYZ或CIE1976 LAB或其他可定義一個色彩向量座標的色彩空間表示方式，但不以此為限。 The instant backlight intensity IF1 of the backlight module 12 sensed by the first sensing unit 14 and the color information IF2 before the display panel 10 detected by the second sensing unit 18 may be different depending on the measuring instrument or the measuring unit. Representation, and there are mathematical transformations before each other, such as the three-color stimulus value of the three-dimensional vector CIE 1931 XYZ or CIE1976 LAB or other color space representation that can define a color vector coordinate, but not limited to this.
當處理模組16判斷背光模組12的即時背光強度IF1與標準背光強度不同或相關背光強度IF1的量測值低於一預設值時，處理模組16即會啟動背光補償機制並提高背光模組12發出背光L的背光強度，而同時第一感測單元14會感測背光模組12之補償後背光強度。 When the processing module 16 determines that the instant backlight intensity IF1 of the backlight module 12 is different from the standard backlight intensity or the measured value of the associated backlight intensity IF1 is lower than a predetermined value, the processing module 16 activates the backlight compensation mechanism and improves the backlight. The module 12 emits the backlight intensity of the backlight L, while the first sensing unit 14 senses the compensated backlight intensity of the backlight module 12.
接著，處理模組16會依據第一感測單元14感測到的補償後背光強度與對應於顯示面板10的第一面板色彩特徵資訊估算出顯示面板10的第一即時色彩資訊。然後，處理模組16會依據第一即時色彩資訊估算出顯示面板10所需之第一色彩增益補償值並依據第一色彩增益補償值對顯示面板10的色彩進行補償後由顯示面板10顯示影像。 Then, the processing module 16 estimates the first instant color information of the display panel 10 according to the compensated backlight intensity sensed by the first sensing unit 14 and the first panel color feature information corresponding to the display panel 10. Then, the processing module 16 estimates the first color gain compensation value required by the display panel 10 according to the first instant color information, and compensates the color of the display panel 10 according to the first color gain compensation value, and then displays the image by the display panel 10. .
於實際應用中，儲存單元19可儲存有對應於顯示面板10的第一面板色彩特徵資訊，當處理模組16接收到第一感測單元14感測到的補償後背光強度時，處理模組16可從儲存單元19存取第一面板色彩特徵資訊並依據第一面板色彩特徵資訊與補償後背 光強度估算出顯示面板10的第一即時色彩資訊。此外，儲存單元19亦可儲存有一查找表，且查找表包括顯示面板10所需之色彩增益補償值與顯示面板10的即時色彩資訊之間的對應關係，使得處理模組16能從儲存單元19儲存的查找表中找出對應於第一即時色彩資訊的第一色彩增益補償值。 In a practical application, the storage unit 19 can store the first panel color feature information corresponding to the display panel 10, and when the processing module 16 receives the compensated backlight intensity sensed by the first sensing unit 14, the processing module 16 can access the first panel color feature information from the storage unit 19 and according to the first panel color feature information and the compensation back The light intensity estimates the first instant color information of the display panel 10. In addition, the storage unit 19 can also store a lookup table, and the lookup table includes a correspondence between the color gain compensation value required by the display panel 10 and the instant color information of the display panel 10, so that the processing module 16 can be accessed from the storage unit 19. A first color gain compensation value corresponding to the first instant color information is found in the stored lookup table.
需說明的是，處理模組16進行背光補償時會提高背光模組12的背光強度超過標準背光強度，亦即第一感測單元14感測到的補償後背光強度會大於標準背光強度，其主要原因是由於處理模組16後續依據第一色彩增益補償值對顯示面板10的色彩進行補償時會導致通過顯示面板10的亮度下降量，故處理模組16會先將背光模組12的背光強度提前補償至超過標準背光強度，藉以達到預先進行補償亮度之效果。 It should be noted that when the backlight compensation is performed by the processing module 16 , the backlight intensity of the backlight module 12 is increased beyond the standard backlight intensity, that is, the compensated backlight intensity sensed by the first sensing unit 14 is greater than the standard backlight intensity. The reason is that the processing module 16 firstly backlights the backlight module 12 because the processing module 16 subsequently compensates for the color of the display panel 10 according to the first color gain compensation value. The intensity is compensated in advance to exceed the standard backlight intensity, so as to achieve the effect of pre-compensating for brightness.
於實際應用中，對應於顯示面板10的第一面板色彩特徵資訊可以是一特徵矩陣且可包括顯示面板10的色彩資訊與背光模組12的背光強度之間的對應關係(例如非線性的對應關係)，但不以此為限，而在不同量測採樣點之間可使用內插法來得出未量測點的相對關係。至於對應於顯示面板10的第一面板色彩特徵資訊可透過下列方式產生，但不以此為限。此外，第一面板色彩特徵資訊係對應於顯示面板10的穿透特性，亦即相同光強度的背光源所發出的光來穿透不同的顯示面板，在顯示面板的另一面進行量測的亮度與色彩對應不同的顯示面板會有差異，主要係因為材質或製程所造成的差異。 In a practical application, the first panel color feature information corresponding to the display panel 10 may be a feature matrix and may include a correspondence between the color information of the display panel 10 and the backlight intensity of the backlight module 12 (eg, a non-linear correspondence) Relationship), but not limited to this, and interpolation can be used between different measurement sampling points to obtain the relative relationship of the unmeasured points. The color information of the first panel corresponding to the display panel 10 can be generated in the following manner, but is not limited thereto. In addition, the first panel color feature information corresponds to the penetration characteristic of the display panel 10, that is, the light emitted by the backlight of the same light intensity penetrates different display panels, and the brightness measured on the other side of the display panel There are differences in the display panels that differ from the colors, mainly due to differences in materials or processes.
於顯示裝置1出廠時，背光模組12可分別發出具有不同背光強度的背光至顯示面板10，並由第二感測單元18於顯示面板10前相對應感測顯示面板10之色彩資訊IF2並將顯示面板10之色彩資訊IF2傳送至處理模組16。接著，處理模組16會依據不同的背光強度與顯示面板10顯示的色彩(如白光、純紅、純綠與純藍)與相對應的色彩資訊IF2計算出對應於顯示面板10的第一面板色彩特徵資訊。 When the display device 1 is shipped from the factory, the backlight module 12 can respectively emit backlights having different backlight intensities to the display panel 10, and the second sensing unit 18 correspondingly senses the color information IF2 of the display panel 10 in front of the display panel 10. The color information IF2 of the display panel 10 is transmitted to the processing module 16. Then, the processing module 16 calculates the first panel corresponding to the display panel 10 according to the different backlight intensity and the colors displayed by the display panel 10 (such as white light, pure red, pure green, and pure blue) and the corresponding color information IF2. Color feature information.
舉例而言，當背光模組12發出第一背光至顯示面板10時，第二感測單元18於顯示面板10前感測顯示面板10之第一色彩資訊並將顯示面板10之第一色彩資訊傳送至處理模組16。當背光模組12發出第二背光至顯示面板10時，第二感測單元18於顯示面板10前感測顯示面板10之第二色彩資訊並將顯示面板10之第二色彩資訊傳送至處理模組16。其中，背光模組12發出的第一背光與第二背光係分別具有不同的背光強度。接著，處理模組16可採用內插法依據第一背光、第一色彩資訊、第二背光與第二色彩資訊計算出對應於顯示面板10的第一面板色彩特徵資訊，但不以此為限，在上述的量測程序中，會分別將純白、純紅、純綠與純藍的畫面影像傳送至顯示面板10，以提供第二感測單元18分別量測不同的亮度與色度。 For example, when the backlight module 12 sends the first backlight to the display panel 10 , the second sensing unit 18 senses the first color information of the display panel 10 and displays the first color information of the display panel 10 before the display panel 10 . Transfer to the processing module 16. When the backlight module 12 emits the second backlight to the display panel 10, the second sensing unit 18 senses the second color information of the display panel 10 and transmits the second color information of the display panel 10 to the processing module before the display panel 10. Group 16. The first backlight and the second backlight emitted by the backlight module 12 respectively have different backlight intensities. Then, the processing module 16 may calculate, by using the interpolation method, the color information of the first panel corresponding to the display panel 10 according to the first backlight, the first color information, the second backlight, and the second color information, but not limited thereto. In the above measurement procedure, the screen images of pure white, pure red, pure green, and pure blue are respectively transmitted to the display panel 10 to provide the second sensing unit 18 to measure different brightness and chromaticity, respectively.
於實際應用中，第二感測單元18可包括一色度儀(Colormeter)。當背光模組12分別發出具有不同背光強度的背光至顯示面板10時，第二感測單元18中之色度儀可於顯示面板10前分別 量測顯示面板10上之純白、純紅、純藍與純綠畫面的強度值。 In practical applications, the second sensing unit 18 can include a color meter. When the backlight module 12 respectively emits backlights having different backlight intensities to the display panel 10, the colorimeter in the second sensing unit 18 can be respectively in front of the display panel 10. The intensity values of the pure white, pure red, pure blue, and pure green screens on the display panel 10 are measured.
於一實施例中，第二感測單元18中之色度儀所測得的顯示面板10上之純紅、純藍與純綠的強度值可以是對應於顯示面板10的第一面板色彩特徵資訊(例如特徵矩陣)與背光模組12發出的背光強度之乘積，但不以此為限。 In an embodiment, the intensity values of pure red, pure blue, and pure green on the display panel 10 measured by the colorimeter in the second sensing unit 18 may be the first panel color features corresponding to the display panel 10. The product of the information (such as the feature matrix) and the backlight intensity emitted by the backlight module 12, but not limited thereto.
假設第二感測單元18中之色度儀所測得的顯示面板10上之純紅、純藍與純綠的強度值為P、第一感測單元14所感測到之背光模組12的背光強度為Q且對應於顯示面板10的第一面板色彩特徵資訊為R，則P=Q*R。 It is assumed that the intensity values of pure red, pure blue, and pure green on the display panel 10 measured by the colorimeter in the second sensing unit 18 are P, and the backlight module 12 sensed by the first sensing unit 14 The backlight intensity is Q and the first panel color feature information corresponding to the display panel 10 is R, then P=Q*R.
其中，R為特徵矩陣且P、Q亦均以矩陣形式表示。於一實施例中，若，，，則由P=R*Q可知：，但不以此為限。 Where R is a feature matrix and P and Q are also represented in a matrix form. In an embodiment, if , , , then P = R * Q can be known: , but not limited to this.
也就是說，在對應於顯示面板10的第一面板色彩特徵資訊(特徵矩陣)R維持不變的前提下，即使背光模組12的背光強度Q改變為Q’，處理模組16仍可依據改變後的背光強度Q’與維持不變的第一面板色彩特徵資訊R估算出顯示面板10上相對應的純紅、純藍與純綠的強度值P’，並可將顯示面板10上之純紅、純藍與純綠的強度值相加後得到純白的強度值，但不以此為限。 That is, under the premise that the color information (characteristic matrix) R of the first panel corresponding to the display panel 10 is maintained, even if the backlight intensity Q of the backlight module 12 is changed to Q′, the processing module 16 can still be based on The changed backlight intensity Q′ and the unchanged first panel color feature information R estimate the corresponding pure red, pure blue and pure green intensity values P′ on the display panel 10 and can be displayed on the display panel 10 The intensity values of pure red, pure blue and pure green are added to obtain the intensity value of pure white, but not limited thereto.
至於處理模組16提高背光模組12的背光強度以進行 背光補償之作法則可視實際需要而有所不同，下面將舉出兩個不同的實施例，但不以此為限。 The processing module 16 increases the backlight intensity of the backlight module 12 to perform The method of backlight compensation may vary depending on actual needs. Two different embodiments will be given below, but not limited thereto.
於一實施例中，處理模組16可先依據背光模組12的即時背光強度IF1、標準背光強度及對應於顯示面板10的第一面板色彩特徵資訊估算出顯示面板10之第二即時色彩資訊；然後，處理模組16依據第二即時色彩資訊估算出顯示面板10所需之第二色彩增益補償值及相對應之第一亮度變化量；最後，處理模組16再依據第一亮度變化量提高背光模組12之背光強度，使得背光模組12之補償後背光強度大於標準背光強度，藉以達到預先補償之效果。 In one embodiment, the processing module 16 may first estimate the second instant color information of the display panel 10 according to the instant backlight intensity IF1 of the backlight module 12, the standard backlight intensity, and the first panel color feature information corresponding to the display panel 10. Then, the processing module 16 estimates the second color gain compensation value and the corresponding first brightness change amount required by the display panel 10 according to the second instant color information. Finally, the processing module 16 further determines the first brightness change amount. The backlight intensity of the backlight module 12 is increased, so that the backlight intensity of the backlight module 12 is greater than the standard backlight intensity, thereby achieving the effect of pre-compensation.
於另一實施例中，處理模組16亦可直接依據背光模組12的即時背光強度IF1與標準背光強度的差值來提高背光模組12之背光強度。此外，處理模組16亦可依據上述差值加上一固定值來提高背光模組12之背光強度，藉以補償由於後續調色程序造成的亮度誤差值。 In another embodiment, the processing module 16 can directly increase the backlight intensity of the backlight module 12 according to the difference between the instantaneous backlight intensity IF1 of the backlight module 12 and the standard backlight intensity. In addition, the processing module 16 can also increase the backlight intensity of the backlight module 12 according to the difference and a fixed value, thereby compensating for the brightness error value caused by the subsequent color program.
需說明的是，處理模組16依據第一即時色彩資訊所估算的第一色彩增益補償值可包括第一純紅增益補償值、第一純藍增益補償值與第一純綠增益補償值，用以分別對傳送至顯示面板10上影像的紅、藍、綠的顏色進行補償。 It should be noted that the first color gain compensation value estimated by the processing module 16 according to the first instant color information may include a first pure red gain compensation value, a first pure blue gain compensation value, and a first pure green gain compensation value. It is used to compensate for the colors of red, blue and green transmitted to the image on the display panel 10, respectively.
於實際應用中，如圖2所示，處理模組16亦可包括處理器160及縮放器(Scaler)162。其中，處理器160分別耦接第一感測單元14、第二感測單元18及儲存單元19，用以分別接收第一感測單 元14所感測到的背光模組12之即時背光強度IF1與第二感測單元18所感測到的顯示面板10之色彩資訊IF2，並可將即時背光強度IF1及色彩資訊IF2儲存於儲存單元19內；縮放器162分別耦接顯示面板10、背光模組12及處理器160，用以依據顯示面板10的固定解析度(Native resolution)調整影像訊號之解析度並用以控制顯示面板10及背光模組12之運作。實際上，處理器160及縮放器162可整合設置或各自獨立設置，並無特定之限制。 In practical applications, as shown in FIG. 2 , the processing module 16 may also include a processor 160 and a scaler 162 . The processor 160 is coupled to the first sensing unit 14, the second sensing unit 18, and the storage unit 19 for respectively receiving the first sensing list. The instant backlight intensity IF1 of the backlight module 12 sensed by the element 14 and the color information IF2 of the display panel 10 sensed by the second sensing unit 18, and the instant backlight intensity IF1 and the color information IF2 may be stored in the storage unit 19 The scaler 162 is coupled to the display panel 10, the backlight module 12, and the processor 160 for adjusting the resolution of the image signal according to the resolution of the display panel 10 and for controlling the display panel 10 and the backlight module. The operation of group 12. In fact, the processor 160 and the scaler 162 can be integrated or independently set without any particular limitation.
依據本發明之另一較佳具體實施例為一種色彩校正方法。於此實施例中，色彩校正方法應用於顯示裝置。顯示裝置包括顯示面板及背光模組。請參照圖3，圖3係繪示此實施例中之色彩校正方法的流程圖。如圖3所示，於此實施例中，色彩校正方法可包括下列步驟：S1：感測背光模組之即時背光強度；S2：當即時背光強度與標準背光強度不同時，提高背光模組之背光強度；S3：感測背光模組之補償後背光強度；S4：依據補償後背光強度與第一面板色彩特徵資訊估算出顯示面板之第一即時色彩資訊；S5：依據第一即時色彩資訊估算出顯示面板所需之第一色彩增益補償值；S6：依據第一色彩增益補償值對顯示面板的色彩進行補償，第一色彩增益補償值係對要傳送到顯示面板的顯示訊號 進行補償後再傳送到顯示面板；以及S7：顯示面板顯示影像。 Another preferred embodiment in accordance with the present invention is a color correction method. In this embodiment, the color correction method is applied to a display device. The display device includes a display panel and a backlight module. Please refer to FIG. 3. FIG. 3 is a flow chart showing a color correction method in this embodiment. As shown in FIG. 3, in this embodiment, the color correction method may include the following steps: S1: sensing the instantaneous backlight intensity of the backlight module; S2: improving the backlight module when the instant backlight intensity is different from the standard backlight intensity Backlight intensity; S3: sensing the backlight intensity after compensation of the backlight module; S4: estimating the first instant color information of the display panel according to the compensated backlight intensity and the first panel color feature information; S5: estimating according to the first instant color information The first color gain compensation value required by the display panel is obtained; S6: the color of the display panel is compensated according to the first color gain compensation value, and the first color gain compensation value is a display signal to be transmitted to the display panel The compensation is transmitted to the display panel; and the S7: display panel displays the image.
於實際應用中，步驟S2可先依據第一面板色彩特徵資訊、即時背光強度與標準背光強度估算出顯示面板之第二即時色彩資訊，並依據第二即時色彩資訊估算出顯示面板所需之第二色彩增益補償值及相對應之第一亮度變化量，最後再依據第一亮度變化量提高背光模組之背光強度。 In practical applications, step S2 may first estimate the second instant color information of the display panel according to the first panel color feature information, the instant backlight intensity and the standard backlight intensity, and estimate the required number of the display panel according to the second instant color information. The second color gain compensation value and the corresponding first brightness change amount, and finally the backlight intensity of the backlight module is improved according to the first brightness change amount.
此外，步驟S2亦可直接依據標準背光強度與即時背光強度的差值來提高背光模組之背光強度，或是依據上述差值加上一固定值來提高背光模組之背光強度，藉以補償由於後續步驟S6進行調色時造成的亮度誤差值。 In addition, step S2 can directly improve the backlight intensity of the backlight module according to the difference between the standard backlight intensity and the instantaneous backlight intensity, or increase the backlight intensity of the backlight module according to the difference and the fixed value, thereby compensating for Subsequent step S6 performs a brightness error value caused by the color adjustment.
需說明的是，步驟S1所感測的即時背光強度依據不同的儀器可為不同種參數，例如。三色刺激值(Sx、Sy、Sz)表示，如前面提到的。然判斷背光模組是否衰減可以由量測值或是經計算的白、紅、綠、藍或其他顏色光的值異於標準值來判定，但不以此為限。 It should be noted that the instant backlight intensity sensed in step S1 may be different kinds of parameters according to different instruments, for example. Tristimulus values (Sx, Sy, Sz) are expressed as previously mentioned . However, whether the backlight module is attenuated or not can be determined by the measured value or the calculated value of white, red, green, blue or other color light is different from the standard value, but is not limited thereto.
此外，步驟S2會將背光模組的背光強度補償至超過標準背光強度，使得步驟S3感測到的補償後背光強度會大於標準背光強度，其主要原因是由於後續之步驟S6依據第一色彩增益補償值對顯示面板的色彩進行補償時會導致通過顯示面板的亮度下 降量，故在步驟S2先將背光模組的背光強度補償至超過標準背光強度，藉以達到預先進行補償之效果。 In addition, step S2 compensates the backlight intensity of the backlight module to exceed the standard backlight intensity, so that the compensated backlight intensity sensed in step S3 is greater than the standard backlight intensity, which is mainly because the subsequent step S6 is based on the first color gain. When the compensation value compensates for the color of the display panel, it will cause the brightness through the display panel. Therefore, in step S2, the backlight intensity of the backlight module is compensated to exceed the standard backlight intensity, so as to achieve the effect of compensation in advance.
於實際應用中，步驟S2亦可感測背光模組之一補償後即時背光強度並以補償後即時背光強度取代原本的標準背光強度，藉以達到更新校正標準背光強度之目的。 In practical applications, step S2 can also sense the instant backlight intensity after compensation of one of the backlight modules and replace the original standard backlight intensity with the compensated instant backlight intensity, thereby achieving the purpose of updating the calibration standard backlight intensity.
如圖4A至圖4B所示，於另一實施例中，色彩校正方法可包括下列步驟：S10：感測背光模組之即時背光強度；S11：判斷即時背光強度是否與標準背光強度相同，當步驟S11之判斷結果為是時，重新執行步驟S10；S12：當步驟S11之判斷結果為否時，依據第一面板色彩特徵資訊與即時背光強度估算顯示面板之第一即時色彩資訊並據以估算顯示面板所需之第一色彩增益補償值及相對應之第一亮度變化量；S13：調整背光模組之背光強度；S14：感測背光模組之即時背光亮度；S15：判斷背光模組之即時背光亮度是否與標準背光亮度相同，當步驟S15之判斷結果為否時，重新執行步驟S13；S16：當步驟S15之判斷結果為是時，依據第一亮度變化量估算背光模組所需之背光強度補償值；S17：依據背光強度補償值補償背光模組之背光強度； S18：感測背光模組之補償後背光強度；S19：依據補償後背光強度與第一面板色彩特徵資訊估算出顯示面板之第二即時色彩資訊；S20：依據第二即時色彩資訊估算出顯示面板所需之第二色彩增益補償值；以及S21：依據第二色彩增益補償值對顯示面板的色彩進行補償後顯示影像。 As shown in FIG. 4A to FIG. 4B, in another embodiment, the color correction method may include the following steps: S10: sensing the instantaneous backlight intensity of the backlight module; S11: determining whether the instant backlight intensity is the same as the standard backlight intensity, when When the determination result of step S11 is YES, step S10 is re-executed; S12: when the determination result of step S11 is no, the first instant color information of the display panel is estimated according to the first panel color feature information and the instant backlight intensity and estimated according to The first color gain compensation value required by the display panel and the corresponding first brightness change amount; S13: adjusting the backlight intensity of the backlight module; S14: sensing the instant backlight brightness of the backlight module; S15: determining the backlight module Whether the brightness of the backlight is the same as the brightness of the standard backlight. When the result of the determination in step S15 is no, step S13 is performed again; S16: when the result of the determination in step S15 is YES, the backlight module is required according to the first brightness change amount. Backlight intensity compensation value; S17: compensate backlight intensity of the backlight module according to the backlight intensity compensation value; S18: sensing the backlight intensity after the compensation of the backlight module; S19: estimating the second instant color information of the display panel according to the compensated backlight intensity and the first panel color feature information; S20: estimating the display panel according to the second instant color information The required second color gain compensation value; and S21: displaying the image after compensating the color of the display panel according to the second color gain compensation value.
需說明的是，步驟S12及步驟S19所採用的第一面板色彩特徵資訊可以是一特徵矩陣，但不以此為限。步驟S12依據第一面板色彩特徵資訊與即時背光強度估算出的第一即時色彩資訊可以是顯示面板上之純白、純紅、純綠及純藍的第一即時強度值，而步驟S19依據補償後背光強度與第一面板色彩特徵資訊估算出的第二即時色彩資訊可以是顯示面板上之純白、純紅、純綠及純藍的第二即時強度值，但不以此為限。 It should be noted that the first panel color feature information used in step S12 and step S19 may be a feature matrix, but is not limited thereto. Step S12, according to the first panel color feature information and the instant backlight intensity, the first instant color information may be the first real intensity value of pure white, pure red, pure green, and pure blue on the display panel, and step S19 is based on the compensation. The second instant color information estimated by the backlight intensity and the first panel color feature information may be the second real intensity value of the white, pure red, pure green, and pure blue on the display panel, but is not limited thereto.
接下來，請同時參照圖1及圖5，圖5係繪示本發明之顯示裝置1產生面板色彩特徵資訊之一實施例的流程圖。 Next, please refer to FIG. 1 and FIG. 5 simultaneously. FIG. 5 is a flow chart showing an embodiment of generating panel color feature information by the display device 1 of the present invention.
於顯示裝置1出廠時，背光模組12可依序發出複數個具有不同背光強度的背光至顯示面板10，而顯示面板10顯示純白、純紅、純綠與純藍的畫面，感測單元18可於顯示面板10前感測不同背光強度與不同顯示顏色的量測值。以背光模組12依序發出兩個具有不同背光強度的背光至顯示面板10為例，當背光模組12發出具有第一背光強度之第一背光至顯示面板10，而顯示面板 10顯示純白、純紅、純綠與純藍的畫面(圖5中之步驟S31)時，第二感測單元18可於顯示面板10前感測顯示面板10的第一色彩資訊(圖5中之步驟S32)並將第一色彩資訊傳送至處理模組16；當背光模組12發出具有第二背光強度之第二背光至顯示面板10，而顯示面板10顯示純白、純紅、純綠與純藍的畫面(圖5中之步驟S33)時，第二感測單元18可於顯示面板10前感測顯示面板10發出的第二色彩資訊(圖5中之步驟S34)並將第二色彩資訊傳送至處理模組16。接著，處理模組16可依據第一背光、第一亮度資訊、第二背光與第二亮度資訊計算第一面板色彩特徵資訊(圖5中之步驟S35)。 When the display device 1 is shipped from the factory, the backlight module 12 can sequentially emit a plurality of backlights having different backlight intensities to the display panel 10, and the display panel 10 displays pure white, pure red, pure green and pure blue images, and the sensing unit 18 The measurement values of different backlight intensities and different display colors can be sensed before the display panel 10. The backlight module 12 sequentially emits two backlights having different backlight intensities to the display panel 10 as an example. When the backlight module 12 emits a first backlight having a first backlight intensity to the display panel 10, the display panel The second sensing unit 18 can sense the first color information of the display panel 10 before the display panel 10 (shown in FIG. 5). Step S32) and transmitting the first color information to the processing module 16; when the backlight module 12 emits a second backlight having the second backlight intensity to the display panel 10, the display panel 10 displays pure white, pure red, pure green and In the case of the pure blue screen (step S33 in FIG. 5), the second sensing unit 18 can sense the second color information (step S34 in FIG. 5) emitted by the display panel 10 and display the second color in front of the display panel 10. The information is transmitted to the processing module 16. Then, the processing module 16 calculates the first panel color feature information according to the first backlight, the first brightness information, the second backlight and the second brightness information (step S35 in FIG. 5).
於實際應用中，假設背光模組12發出的背光強度可分為複數段背光強度，當背光模組12發出第一背光至顯示面板10時，第一感測單元14感測到背光模組12發出的第一背光具有該複數段背光強度中之第一段背光強度並將其傳送至處理模組16，同時第二感測單元18感測到顯示面板10的第一色彩資訊(例如第一即時顯示色度)並將其傳送至處理模組16；當背光模組12發出第二背光至顯示面板10時，第一感測單元14感測到背光模組12發出的第二背光具有該複數段背光強度中之第二段背光強度並將其傳送至處理模組16，同時第二感測單元18感測到顯示面板10的第二色彩資訊(例如第二即時顯示色度)並將其傳送至處理模組16。 In the actual application, it is assumed that the backlight intensity emitted by the backlight module 12 can be divided into a plurality of backlights. When the backlight module 12 emits the first backlight to the display panel 10, the first sensing unit 14 senses the backlight module 12. The emitted first backlight has a first segment of the backlight intensity of the plurality of backlights and transmits it to the processing module 16 while the second sensing unit 18 senses the first color information of the display panel 10 (eg, the first When the backlight module 12 emits the second backlight to the display panel 10, the first sensing unit 14 senses that the second backlight emitted by the backlight module 12 has the The second segment of the backlight intensity of the plurality of backlight intensities is transmitted to the processing module 16 while the second sensing unit 18 senses the second color information of the display panel 10 (eg, the second instant display chroma) and It is transmitted to the processing module 16.
當處理模組16分別接收到背光模組12發出的第一背光具有的第一段背光強度、顯示面板10的第一即時顯示色度、背光模組12發出的第二背光具有的第二段背光強度以及顯示面板10 的第二即時顯示色度時，處理模組16可透過一運算法(例如內插法，但不以此為限)對第一段背光強度、第一即時顯示色度、第二段背光強度及第二即時顯示色度進行計算，以得到第一面板色彩特徵資訊(例如面板色度特徵矩陣，但不以此為限)。 When the processing module 16 receives the first segment backlight intensity of the first backlight emitted by the backlight module 12, the first instant display chromaticity of the display panel 10, and the second segment of the second backlight of the backlight module 12 Backlight intensity and display panel 10 The processing module 16 can transmit the first segment backlight intensity, the first instant display chroma, and the second segment backlight intensity through an operation method (for example, interpolation, but not limited thereto). And the second instant display chromaticity is calculated to obtain the first panel color feature information (for example, the panel chromaticity feature matrix, but not limited thereto).
需說明的是，色彩校正方法亦可於顯示面板前提供一色度儀。當背光模組發出具有不同背光強度的背光至顯示面板時，色度儀可量測到顯示面板上之純白、純紅、純藍與純綠的強度值，並且色度儀測得的顯示面板上之純紅、純藍與純綠的強度值可以是第一面板色彩特徵資訊與背光模組發出的背光強度的乘積，但不以此為限。於實際應用中，第一面板色彩特徵資訊可以是一特徵矩陣且第一面板色彩特徵資訊可包括顯示面板的色彩資訊與背光模組的背光強度之間的對應關係，但不以此為限。 It should be noted that the color correction method can also provide a colorimeter in front of the display panel. When the backlight module emits a backlight with different backlight intensity to the display panel, the colorimeter can measure the intensity values of pure white, pure red, pure blue and pure green on the display panel, and the display panel measured by the colorimeter The intensity values of the pure red, pure blue, and pure green may be the product of the color information of the first panel and the backlight intensity emitted by the backlight module, but are not limited thereto. In a practical application, the first panel color feature information may be a feature matrix and the first panel color feature information may include a correspondence between the color information of the display panel and the backlight intensity of the backlight module, but is not limited thereto.
當顯示裝置1經過長時間的使用後，原本採用的第一面板色彩特徵資訊可能會產生改變，因此，本發明可利用外部的校色儀器搭配顯示裝置1內部的第一感測單元14及第二感測單元18重新執行圖5中之步驟S31~S35，再由處理模組16重新計算出第二面板色彩特徵資訊後，以第二面板色彩特徵資訊更新並取代儲存單元19原本儲存的第一面板色彩特徵資訊。 When the display device 1 is used for a long period of time, the first panel color feature information originally used may be changed. Therefore, the present invention can utilize an external color correction device to match the first sensing unit 14 and the first inside the display device 1. The second sensing unit 18 re-executes the steps S31 to S35 in FIG. 5, and after the processing module 16 recalculates the second panel color feature information, the second panel color feature information is updated and replaces the storage unit 19 originally stored. A panel of color feature information.
相較於先前技術，本發明之顯示裝置及色彩校正方法係在背光模組的即時背光強度不同於標準背光強度時提高背光模組發出的背光強度並依據背光模組的補償後背光強度與面板色彩特徵資訊估算出顯示面板之即時色彩資訊，再據以估算出顯示 面板所需的色彩增益補償值並用以補償顯示面板的色彩後顯示影像。 Compared with the prior art, the display device and the color correction method of the present invention improve the backlight intensity emitted by the backlight module when the instant backlight intensity of the backlight module is different from the standard backlight intensity, and the backlight intensity and the panel according to the compensation of the backlight module. The color feature information estimates the instant color information of the display panel, and then estimates the display accordingly. The color gain compensation value required by the panel is used to compensate the color of the display panel and display the image.
藉此，即使背光模組發出的背光發生變化而導致顯示面板前方發光的亮度及色度偏離原本正常的色彩表現，本發明能夠判斷背光模組發出的背光出現變化而即時啟動背光補償機制並依據補償後的背光強度與面板特徵資訊估算出顯示面板所需的色彩增益補償值以補償顯示面板的色彩，藉以有效補償背光模組的色衰減，使得顯示面板前方發光的亮度及色度能夠維持原本正常的色彩表現，而讓人眼在觀看顯示裝置時能有較為舒適的感受。 Therefore, even if the backlight emitted by the backlight module changes, the brightness and chromaticity of the front side of the display panel deviate from the original normal color performance, the present invention can determine the backlight of the backlight module to change and immediately activate the backlight compensation mechanism and The compensated backlight intensity and panel feature information estimate the color gain compensation value required by the display panel to compensate the color of the display panel, thereby effectively compensating for the color attenuation of the backlight module, so that the brightness and chromaticity of the front side of the display panel can be maintained. Normal color performance, and people can have a more comfortable feeling when watching the display device.
由以上較佳具體實施例之詳述，係希望能更加清楚描述本發明之特徵與精神，而並非以上述所揭露的較佳具體實施例來對本發明之範疇加以限制。相反地，其目的是希望能涵蓋各種改變及具相等性的安排於本發明所欲申請之專利範圍的範疇內。藉由以上較佳具體實施例之詳述，係希望能更加清楚描述本發明之特徵與精神，而並非以上述所揭露的較佳具體實施例來對本發明之範疇加以限制。相反地，其目的是希望能涵蓋各種改變及具相等性的安排於本發明所欲申請之專利範圍的範疇內。 The features and spirits of the present invention are intended to be more apparent from the detailed description of the preferred embodiments. On the contrary, the intention is to cover various modifications and equivalents within the scope of the invention as claimed. The features and spirit of the present invention will be more apparent from the detailed description of the preferred embodiments. On the contrary, the intention is to cover various modifications and equivalents within the scope of the invention as claimed.
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