1356367 九、發明說明： 【發明所屬之技術領域】 本發明係關於-種平面顯示裝置及其控制方法 關於一種液晶顯示裝置及其控制方法。 【先前技術】 ' 隨著顯示科技的發展，平面顯示裝置及其產品已瘦廣 鲁泛地被人們使用，而液晶顯示裝置因具有體型輕薄、低功 : 率消耗以及無輻射等優越特性，已經漸漸地取代傳統陰極 . 射線管顯示裝置，並且應用至許多種類之電子產品。 請參照圖1所示，習知之液晶顯示裝置i係包含一背 光模組11以及一液晶顯示面板12。背光模組u係具有一 控制單元111、一驅動單元112、複數個紅 '綠、藍發光二 極體113(以下簡稱發光二極體）及一混光單元114，其中， 驅動卓元112係分別與控制單元in及發光二極體I〗]電 _ 性連接。 控制單元111依據一預設紅、綠、藍光強度值2TR ' 2tg、2tb(以下簡稱預設光強度值）以控制驅動單元ι12驅動 - 發光二極體113分別發出一紅光2R、一綠光2G、一藍光 . 2b。混光單元114係將紅光2R、綠光2G、藍光2B混成一 白光2W，而白光2W在經由液晶顯示面板12之一彩色渡光 片121渡光後，以組合產生一彩色晝面。 一般來說，由於紅光2R、綠光2G、藍光2B的光譜特 6 ί·生(例^如波長分布）會隨著環境溫度或者S發光二極體⑴ 本身衰減等原因而變動，進而導致液晶顯示面板12所顯 ，彩色畫面的色度會產生偏差。因此，為了解決上述問 題，.業者係於液晶顯示裝置i之背光模組u中增添一光 感測單元（圖巾未示）’其係隨時接收白光％，並過渡白光 2w以產生一紅、綠、藍光強度回授值（以下簡稱光強度回 授值）至控鮮70 111 ’而控制單元ln係依據預設光強度 值2TR、2TG、2TB與光強度回授值之間的差值，以回授控 制驅動單元112來修正發光二極體113發光，進而修正彩 色畫面的色度偏差。 在貫際運作上，若因環境溫度的改變而產生紅光2r、 綠光2g、藍光2b的主波長偏移時，光強度回授值係受到 光感測單元之光譜響應中對應各主波長之增益值的大小 不同，而有不同的變化，因而導致背光模組u修正輸出 後的白光2W仍有約千分之二的色度偏差，而且此色度偏 差係反應至彩色晝面。 然而，由於光感測單元之光譜響應與彩色遽光片121 之光譜響應並不相同，換句話說，光感測單元之光譜響應 與彩色滤光片之光譜響應中對應各主波長之增益值變化 並不相同，所以導致彩色畫面的色度偏差放大至約千分之 八。經由統sf*，由於色度偏差在大於千分之五時，人眼即 可察覺其變化’因此習知的彩色畫面的色度偏差將會被人 眼觀察到。 1356367 因此，如何提供一種可以減少色度偏差的液晶顯示裝 置及其控制方法，實屬當前重要課題之一。 【發明内容】 有鑑於上述課題，本發明之目的為提供一種可以減少 ' 色度偏差的液晶顯示裝置及其控制方法。 - 緣是，為達上述目的，依據本發明之一種液晶顯示裝 置係包含一背光模組及一液晶顯示面板。液晶顯示面板係 • 具有一彩色濾光片，且背光模組係至少具有一發光單元、 . 一光感測單元及一調整單元，其中，調整單元係分別與發 光單元及光感測單元電性連接。 光感測單元之光學特性係對應於一第一光譜響應，且 光感測單元係接收發光單元所產生之一光線，並依據第一 光譜響應過濾光線以產生一光強度訊號值。調整單元係依 - 據光強度訊號值與一目標光強度值以產生一調整訊號來 Φ 調整發光單元之發光強度。彩色濾光片之光學特性係對應 於一第二光譜響應，且彩色濾光片係依據第二光譜響應過 濾光線以產生一彩色晝面，其中，第一光譜響應實質上與 第二光譜響應相同。 另外，為達上述目的，依據本發明之一種液晶顯示裝 置的控制方法，其中，液晶顯示裝置係至少具有一背光模 組及'一液晶顯不面板。液晶顯不面板係具有·一彩色遽光 片，且背光模組係至少具有一發光單元、一光感測單元及 8 1356367 一調整單元，其中，光感測單元之光學特性係對應於一第 一光譜響應，且彩色濾光片之光學特性係對應於一第二光 譜響應。 液晶顯示裝置的控制方法係包含下列步驟：首先，由 光感測單元接收發光單元所產生之一光線，並依據第一光 譜響應過濾光線以產生一光強度訊號值；然後，由調整單 元依據光強度訊號值與一目標光強度值以產生一調整訊 號來調整發光單元之發光強度；接著，由彩色濾光片依據 第二光譜響應過濾光線，其中第一光譜響應實質上與第二 光譜響應相同。 承上所述，依據本發明之液晶顯示裝置及其控制方 法，係由於第一光譜響應（對應於光感測單元）實質上與第 二光譜響應（對應於彩色濾光片）相同，換句話說，第一光 譜響應中對應.各波長之增益值變化實質上與第二光譜響 應相同，所以，使液晶顯示面板所產生彩色畫面的色度偏 差不會受第二光譜響應而被放大，進而可以更精準地控制 液晶顯示裝置的色度。 【實施方式】 以下將參照相關圖式，說明依據本發明較佳實施例之 液晶顯示裝置及其控制方法。 請參照圖2所示，依據本發明較佳實施例之液晶顯示 裝置3係包含一背光模組31及一液晶顯示面板32。液晶 9 1356367 顯示面板32係至少具有一彩色濾光片321，且背光模組 31係至少具有一發光單元311、一光感測單元312及一調 〇 整單元313，其中，調整單元313係分別與發光單元311 及光感測單元312電性連接。 光感測單元312之光學特性係對應於一第一光譜響應 "OK，且光感測單元312係接收發光單元311所產生之一 - 光線LT，並依據第一光譜響應01^過濾光線LT以產生一 光強度訊號值Vs。其中，光感測單元312所產生之光強度 # 訊號值Vs的大小係正比於第一光譜響應〇心中對應光線 LT波長的增益值。 調整單元313係依據光強度訊號值Vs與一目標光強 度值VT以產生一調整訊號SM來調整發光單元311所發出 光線LT之強度。其中，目標光強度值乂^:^可為使用者由外 部設定的一自訂值，或者為一產品出廠的預設值。 - 彩色濾光片321之光學特性係對應於一第二光譜響應 φ 〇R2，且彩色濾光片321係依據第二光譜響應0R2過濾光 線LT以產生一彩色晝面。第一光譜響應0心實質上與第 二光譜響應OR2相同，例如，於波長介於640nm ~ 750nm 之間、480nm ~ 550nm之間或450nm ~ 480nm之間的第一 光譜響應0&與第二光譜響應〇R2相同。當然，第一光譜 響應〇心與苐二光譜響應〇R2亦可依照實際的需求於波長 介於其他數值之間相同。 承上，由於第一光譜響應0心（對應於光感測單元312) 1356367 ΐ貝0R2(對應於彩色濾^ 32_ 響應0R1中對應各波長之增益值 應⑽2相同，所以，使液晶顯示 面板力產生才> 色畫面的色度偏差不會受到第二光譜響 被放大’進而可以更精準地控制液萬顯示 裝置3的色度。1356367 IX. Description of the Invention: [Technical Field] The present invention relates to a flat display device and a control method thereof relating to a liquid crystal display device and a control method therefor. [Prior Art] With the development of display technology, flat display devices and their products have been used extensively and widely, and liquid crystal display devices have been characterized by their slimness, low power, rate consumption and no radiation. Gradually replace the traditional cathode. The tube display device is applied to many kinds of electronic products. Referring to FIG. 1, a conventional liquid crystal display device i includes a backlight module 11 and a liquid crystal display panel 12. The backlight module u has a control unit 111, a driving unit 112, a plurality of red' green and blue light emitting diodes 113 (hereinafter referred to as light emitting diodes) and a light mixing unit 114, wherein the driving unit 112 They are respectively connected to the control unit in and the light-emitting diode I. The control unit 111 controls the driving unit ι12 to drive the light-emitting diode 113 to emit a red light 2R and a green light according to a preset red, green and blue light intensity values 2TR '2tg, 2tb (hereinafter referred to as preset light intensity values). 2G, a blue light. 2b. The light mixing unit 114 mixes the red light 2R, the green light 2G, and the blue light 2B into a white light 2W, and the white light 2W is combined to generate a color pupil surface after passing through the color light-passing sheet 121 of the liquid crystal display panel 12. In general, since the spectrum of red light 2R, green light 2G, and blue light 2B is varied (such as wavelength distribution), it may change depending on the ambient temperature or the attenuation of the S light-emitting diode (1) itself. As shown in the liquid crystal display panel 12, the chromaticity of the color screen is deviated. Therefore, in order to solve the above problem, the manufacturer adds a light sensing unit (not shown) to the backlight module u of the liquid crystal display device i, which receives the white light % at any time, and transitions the white light 2w to generate a red color. The green and blue light intensity feedback values (hereinafter referred to as light intensity feedback values) are controlled to 70 111 ', and the control unit ln is based on the difference between the preset light intensity values 2TR, 2TG, 2TB and the light intensity feedback value. The illumination control unit 112 is used to correct the light emission of the light-emitting diode 113, thereby correcting the chromaticity deviation of the color screen. In the continuous operation, if the dominant wavelength of red light 2r, green light 2g, and blue light 2b is shifted due to changes in ambient temperature, the light intensity feedback value is received by the corresponding dominant wavelength in the spectral response of the light sensing unit. The magnitude of the gain value is different, and there are different changes, so that the white light 2W after the backlight module u corrects the output still has a chromaticity deviation of about two thousandths, and the chromaticity deviation is reflected to the color plane. However, since the spectral response of the light sensing unit is different from the spectral response of the color light film 121, in other words, the spectral response of the light sensing unit and the spectral response of the color filter correspond to the gain values of the respective dominant wavelengths. The changes are not the same, so the chromaticity deviation of the color picture is enlarged to about eight thousandths. By the sf*, since the chromaticity deviation is greater than five thousandths, the human eye can perceive its change'. Therefore, the chromaticity deviation of the conventional color picture will be observed by the human eye. 1356367 Therefore, how to provide a liquid crystal display device and a control method thereof capable of reducing chromaticity deviation is one of the current important topics. SUMMARY OF THE INVENTION In view of the above problems, an object of the present invention is to provide a liquid crystal display device and a control method thereof that can reduce 'chromaticity deviation. In order to achieve the above object, a liquid crystal display device according to the present invention comprises a backlight module and a liquid crystal display panel. The liquid crystal display panel has a color filter, and the backlight module has at least one light emitting unit, a light sensing unit and an adjusting unit, wherein the adjusting unit is electrically connected to the light emitting unit and the light sensing unit respectively. connection. The optical characteristic of the light sensing unit corresponds to a first spectral response, and the light sensing unit receives one of the light generated by the light emitting unit and filters the light according to the first spectral response to generate a light intensity signal value. The adjusting unit adjusts the luminous intensity of the light emitting unit according to the light intensity signal value and a target light intensity value to generate an adjustment signal. The optical characteristic of the color filter corresponds to a second spectral response, and the color filter filters the light according to the second spectral response to produce a color pupil plane, wherein the first spectral response is substantially the same as the second spectral response . Further, in order to achieve the above object, a liquid crystal display device according to the present invention, wherein the liquid crystal display device has at least one backlight module and a liquid crystal display panel. The liquid crystal display panel has at least one light-emitting sheet, and the backlight module has at least one light-emitting unit, one light-sensing unit and 8 1356367-adjusting unit, wherein the optical characteristics of the light sensing unit correspond to one A spectral response, and the optical properties of the color filter correspond to a second spectral response. The control method of the liquid crystal display device comprises the following steps: first, a light generated by the light emitting unit is received by the light sensing unit, and the light is filtered according to the first spectral response to generate a light intensity signal value; and then, the light is adjusted by the adjusting unit. The intensity signal value and a target light intensity value are used to generate an adjustment signal to adjust the illumination intensity of the illumination unit; then, the color filter filters the light according to the second spectral response, wherein the first spectral response is substantially the same as the second spectral response . As described above, the liquid crystal display device and the control method thereof according to the present invention are based on the fact that the first spectral response (corresponding to the photo sensing unit) is substantially the same as the second spectral response (corresponding to the color filter). In other words, the change in the gain value corresponding to each wavelength in the first spectral response is substantially the same as the second spectral response, so that the chromaticity deviation of the color picture generated by the liquid crystal display panel is not amplified by the second spectral response, and further The chromaticity of the liquid crystal display device can be controlled more precisely. [Embodiment] Hereinafter, a liquid crystal display device and a control method thereof according to a preferred embodiment of the present invention will be described with reference to the related drawings. Referring to FIG. 2, a liquid crystal display device 3 according to a preferred embodiment of the present invention includes a backlight module 31 and a liquid crystal display panel 32. The display panel 32 has at least one color filter 321 , and the backlight module 31 has at least one light emitting unit 311 , a light sensing unit 312 and a tuning unit 313 , wherein the adjusting unit 313 is respectively The light emitting unit 311 and the light sensing unit 312 are electrically connected. The optical characteristic of the light sensing unit 312 corresponds to a first spectral response "OK, and the light sensing unit 312 receives one of the light rays LT generated by the light emitting unit 311, and filters the light LT according to the first spectral response 01^. To generate a light intensity signal value Vs. The magnitude of the light intensity #signal value Vs generated by the light sensing unit 312 is proportional to the gain value of the corresponding light LT wavelength in the first spectral response center. The adjusting unit 313 adjusts the intensity of the light LT emitted by the light emitting unit 311 according to the light intensity signal value Vs and a target light intensity value VT to generate an adjustment signal SM. The target light intensity value 乂^:^ can be a custom value set by the user from the outside, or a preset value of a product factory. - The optical characteristic of the color filter 321 corresponds to a second spectral response φ 〇 R2, and the color filter 321 filters the light LT according to the second spectral response 0R2 to generate a colored pupil. The first spectral response 0 is substantially the same as the second spectral response OR2, for example, the first spectral response of the wavelength between 640 nm and 750 nm, between 480 nm and 550 nm, or between 450 nm and 480 nm. The response is the same as R2. Of course, the first spectral response 〇 and the second spectral response 〇 R2 can also be the same between the other values according to the actual demand. According to the first spectrum response 0 center (corresponding to the light sensing unit 312) 1356367 mussel 0R2 (corresponding to the color filter 32_ response 0R1 corresponding to each wavelength of the gain value should be the same (10) 2, so, the liquid crystal display panel force The chromaticity deviation of the color image is not amplified by the second spectral response', and the chromaticity of the liquid crystal display device 3 can be controlled more precisely.
除此之外，光感測單元312可包含至少一第一滤光材 料及至-光電轉換|| (圖2中未示），第—濾光材料係接 收光線LT，並依據第—光譜響應QRi以職光線LT，光 電轉換器係將過滤後之光線LT轉換為光強度訊號值％， 其中，第一濾光材料可以是一紅色光阻、一綠色光阻或一 藍色光阻（color resistor)。 另外，彩色濾光片321可具有一第二濾光材料’其係 依據第二光譜響應0R2以過濾光線LT以產生彩色晝面， 其中，第二濾光材料亦可以是紅色光阻、綠色光阻或藍色 光阻。 較佳者，第一濾光材料與第二濾光材料實質上相同， 其中，第一濾光材料所對應的第一光譜響應0Ri與第二渡 光材料所對應的第二光譜響應0R2於某波段相同。舉例來 說，若第一濾光材料與第二濾光材料為紅色光阻時’則對 應於波長介於640nm ~ 750nm之間的第一光譜響應0R1與 第二光譜響應〇R2相同，在此值得注意的是，波長介於 64〇nm〜750nm之間僅為舉例性，可依照實際所使用光阻 11 1356367 (第一濾光材料與第二濾光材料）的不同而有不同的變化。 為了使本發明更加清楚，以下舉一個實際的例子以說 明上述液晶顯示裝置3。 請參照圖3所示，發光單元311可具有至少一紅色發 光二極體Di、至少一綠色發光二極體02及至少一藍色發 " 光二極體D3。另外，發光單元311更具有一混光區， ' 其係將紅色發光二極體Di、綠色發光二極體D2及藍色發 光二極體D3所產生的一紅光LTR、一綠光LTG及一藍光 LT b混成光線LT。 . 光感測單元312可包含三個第一濾光材料MF1、MF2、 MF3及三個光電轉換器Cih、Cn2、Cn3，其中，第一濾光 材料MF1、MF2、MF3分別為一紅色光阻、一綠色光阻及一 藍色光阻，以對應至第一光譜響應〇r1r、〇r1g、or1b。 第一濾光材料mf1、mF2、mF3係分別接收光線lt，並依 - 據第一光譜響應〇R1R、〇R1G、〇心8過濾光線LT，光電轉 φ 換器Ch、Cn2、Cn3係分別將過濾後之光線LT轉換為光 強度訊號值VsR、VSg、Vsb。 調整單元313係依據光強度訊號值VSR、VSG、VSB與 . 三個目標光強度值VTR、VTG、VTB之間的差值，以產生三 個調整訊號SMR、SMG、SMB來分別調整紅色發光二極體 Di、綠色發光二極體D2及藍色發光二極體D3的發光強 度。其中’目標光強度值Vtr、Vtg、Vtb可以由色度座標 的色度值計算得知。 12 1356367 另外，液晶顯示面板32更可包含一電晶體基板322 及一液晶層323，電晶體基板322係與彩色渡光片321相 對而設，且液晶層323係設置於彩色濾光片321與電晶體 基板322之間。在此需注意的是’電晶體基板322及液晶 層323可以就既有技術而完成，在此容不贅述。 而彩色濾光>1 321係具有三個第二濾光材料Msi、 MS2、MS3，且第二濾光材料MS1、MS2、Mss分別為紅色光 阻、綠色光阻及藍色光阻，以對應至第二光譜響應0 R2R、 OR2G、OR2B。而第二濾光材料MS1、MS2、MS3分別與第一 濾光材料MF1、MF2、MF3相同，以使第一光譜響應〇Rir、 OR1G、01^與第二光譜響應〇r2R、〇r2G、〇R2b相同。其 中’由背光模組31所輸出的光線LT分別經由電晶體基板 322及液晶層323而射至彩色濾光片321。彩色濾光片321 之第一遽光材料Msi、Ms2、Ms3係依據第'一光谱響應 OR2R、〇R2G、〇R_2B過渡光線LT以產生一彩色晝面。而電 晶體基板322及液晶層323可作為一開關元件以控制彩色 晝面的輸出。 承上’若因環境溫度的改變而產生紅光LTr、綠光 ltg、藍光ltb的主波長偏移時，光強度訊號值VSR、VSG、 VSB係受到第一光譜響應〇R1r、〇Ri(J、〇R1B中對應各主 波長之增益值的大小不同，而有不同的變化，因而導致背 光模組31調整輸出後的光線LT仍有約千分之二的色度偏 差。然而，由於第一光譜響應〇Rir、〇RlG、0R1B實質上 13 與第二光譜響應〇r2R、0R2G、0R2B相同，所以，當彩色 濾、光片321依據第二光譜響應〇R2R、〇R2G、〇R找過渡光 線LT、以產生衫色畫面時，彩色晝面的色度偏差仍僅維持 在千刀之一，與習知液晶顯示裝置1的彩色畫面的色度偏 差約為千分之八相較之下，液晶顯示裝置3可更精準地控 制色度，且不易被一般的人眼所觀察到。 »月參知、圖4所示，依據本發明較佳實施例之液晶顯示 裝置的控制方法，其中，液晶顯示裝置係至少具有-背光 模組及一液晶顯示面板。液晶顯示面板係具有一彩色濾光 片且月光模組係至少具有一發光單元、一光感測單元及 一調整單元，其中，光感測單元之光學特性係對應於一第 一光譜響應’且彩色濾光片之光學特性係對應於一第二光 譜響應。 液晶顯示裝置的控制方法係至少包含步驟S1〜S3。 步驟S1係由光感測單元接收發光單元所產生之一光 線，並依據第一光譜響應過濾光線以產生一光強度訊號 值，步驟S2係由調整單元依據光強度訊號值與一目標光 強度值以產生一調整訊號來調整發光單元之發光強度；步 驟S3係由彩色濾光片依據第二光譜響應過濾光線，其中 第一光譜響應實質上與第二光譜響應相同。 而本實施例之液晶顯示裝置的控制方法已於上述較 佳實施例之液晶顯示裝置3中詳述，在此不再贅述。 綜上所述，依據本發明之液晶顯示裝置及其控制方 1356367 法，係由於第一光譜響應（對應於光感測單元）實質上與第 二光譜響應（對應於彩色濾光片）相同，換句話說，第一光 譜響應中對應各波長之增益值變化實質上與第二光譜響 應相同，所以，使液晶顯示面板所產生彩色畫面的色度偏 差不會受第二光譜響應而被放大，進而可以更精準地控制 液晶顯示裝置的色度。 以上所述僅為舉例性，而非為限制性者。任何未脫離 本發明之精神與範疇，而對其進行之等效修改或變更，均 應包含於後附之申請專利範圍中。 【圖式簡單說明】 圖1為一方塊示意圖，顯示習知之液晶顯示裝置； 圖2為一方塊示意圖，顯示本發明較佳實施例之液晶 顯示裝置； 圖3為另一方塊示意圖，顯示本發明較佳實施例之液 晶顯示裝置；以及 圖4為一流程示意圖，顯示本發明較佳實施例之液晶 顯示裝置的控制方法。 元件符號說明： I 液晶顯示裝置 II 背光模組 III 控制單元 15 1356367In addition, the light sensing unit 312 can include at least a first filter material and a photoelectric conversion || (not shown in FIG. 2), the first filter material receives the light LT, and according to the first spectral response QRi The operating light LT, the photoelectric converter converts the filtered light LT into a light intensity signal value %, wherein the first filter material may be a red photoresist, a green photoresist or a blue resistor (color resistor) . In addition, the color filter 321 may have a second filter material 'based on the second spectral response 0R2 to filter the light LT to generate a color plane, wherein the second filter material may also be a red photoresist or a green light. Resistance or blue photoresist. Preferably, the first filter material is substantially the same as the second filter material, wherein the first spectral response corresponding to the first filter material and the second spectral response corresponding to the second light-emitting material are 0R2. The bands are the same. For example, if the first filter material and the second filter material are red photoresists, then the first spectral response 0R1 corresponding to a wavelength between 640 nm and 750 nm is the same as the second spectral response 〇R2. It should be noted that the wavelength between 64 〇 nm and 750 nm is only exemplified, and may vary according to the actual use of the photoresist 11 1356367 (the first filter material and the second filter material). In order to clarify the present invention, a practical example will be given below to explain the above liquid crystal display device 3. Referring to FIG. 3, the light emitting unit 311 may have at least one red light emitting diode Di, at least one green light emitting diode 02, and at least one blue light emitting light source D3. In addition, the light emitting unit 311 further has a light mixing region, which is a red light LTR and a green light LTG generated by the red light emitting diode Di, the green light emitting diode D2 and the blue light emitting diode D3. A blue light LT b is mixed into light LT. The light sensing unit 312 can include three first filter materials MF1, MF2, MF3 and three photoelectric converters Cih, Cn2, Cn3, wherein the first filter materials MF1, MF2, MF3 are respectively a red photoresist a green photoresist and a blue photoresist to correspond to the first spectral response 〇r1r, 〇r1g, or1b. The first filter materials mf1, mF2, and mF3 respectively receive the light lt, and filter the light LT according to the first spectral response 〇R1R, 〇R1G, and 〇8, and the photoelectric conversion φ converters Ch, Cn2, and Cn3 respectively The filtered light LT is converted into light intensity signal values VsR, VSg, Vsb. The adjusting unit 313 is configured to generate three adjustment signals SMR, SMG, and SMB according to the difference between the light intensity signal values VSR, VSG, VSB and the three target light intensity values VTR, VTG, and VTB. Luminous intensity of the polar body Di, the green light-emitting diode D2, and the blue light-emitting diode D3. The 'target light intensity values Vtr, Vtg, Vtb can be calculated from the chromaticity values of the chromaticity coordinates. 12 1356367 In addition, the liquid crystal display panel 32 further includes a transistor substrate 322 and a liquid crystal layer 323. The transistor substrate 322 is opposite to the color light-passing sheet 321 , and the liquid crystal layer 323 is disposed on the color filter 321 . Between the transistor substrates 322. It should be noted here that the 'transistor substrate 322 and the liquid crystal layer 323 can be completed by the prior art, and are not described here. The color filter > 1 321 has three second filter materials Msi, MS2, and MS3, and the second filter materials MS1, MS2, and Mss are red, green, and blue, respectively. To the second spectral response 0 R2R, OR2G, OR2B. The second filter materials MS1, MS2, MS3 are identical to the first filter materials MF1, MF2, MF3, respectively, such that the first spectral response 〇Rir, OR1G, 01^ and the second spectral response 〇r2R, 〇r2G, 〇 R2b is the same. The light LT outputted by the backlight module 31 is incident on the color filter 321 via the transistor substrate 322 and the liquid crystal layer 323, respectively. The first phosphor materials Msi, Ms2, and Ms3 of the color filter 321 are based on the first spectral response OR2R, 〇R2G, and 〇R_2B transition light LT to generate a color pupil plane. The transistor substrate 322 and the liquid crystal layer 323 can function as a switching element to control the output of the color plane. If the main wavelengths of red light Ltr, green light ltg, and blue light ltb are shifted due to changes in ambient temperature, the light intensity signal values VSR, VSG, and VSB are subjected to the first spectral response 〇R1r, 〇Ri(J). The magnitude of the gain value corresponding to each of the dominant wavelengths in R1B is different, and there are different changes, so that the backlight module 31 adjusts the output light LT still has a chromaticity deviation of about two thousandths. However, due to the first The spectral response 〇Rir, 〇RlG, and 0R1B are substantially the same as the second spectral response 〇r2R, 0R2G, and 0R2B. Therefore, when the color filter 321 is used to find the transition ray according to the second spectral response 〇R2R, 〇R2G, and 〇R. LT, in order to produce a shirt color picture, the chromaticity deviation of the color enamel surface is still only maintained at one of the thousand knives, and the chromaticity deviation of the color picture of the conventional liquid crystal display device 1 is about eight thousandths. The liquid crystal display device 3 can control the chromaticity more accurately, and is not easily observed by a general human eye. The monthly control method, as shown in FIG. 4, the control method of the liquid crystal display device according to the preferred embodiment of the present invention, wherein The liquid crystal display device has at least a backlight module And a liquid crystal display panel, the liquid crystal display panel has a color filter and the moonlight module has at least one light emitting unit, a light sensing unit and an adjusting unit, wherein the optical characteristics of the light sensing unit correspond to one The first spectral response 'and the optical characteristic of the color filter corresponds to a second spectral response. The control method of the liquid crystal display device includes at least steps S1 to S3. Step S1 is generated by the light sensing unit by the light sensing unit. a light, and filtering the light according to the first spectral response to generate a light intensity signal value, and step S2 is: adjusting, by the adjusting unit, the light intensity of the light emitting unit according to the light intensity signal value and a target light intensity value to generate an adjustment signal; The S3 is configured to filter the light by the color filter according to the second spectral response, wherein the first spectral response is substantially the same as the second spectral response. The control method of the liquid crystal display device of the embodiment is the liquid crystal display of the above preferred embodiment. Detailed description of the device 3 will not be repeated here. In summary, the liquid crystal display device and the controller thereof according to the present invention 1356367 The method is because the first spectral response (corresponding to the light sensing unit) is substantially the same as the second spectral response (corresponding to the color filter), in other words, the gain value of each wavelength in the first spectral response changes substantially. The upper and the second spectral response are the same, so that the chromaticity deviation of the color picture generated by the liquid crystal display panel is not amplified by the second spectral response, so that the chromaticity of the liquid crystal display device can be controlled more precisely. The exemplifications are not intended to be limiting, and any equivalents and modifications may be included in the scope of the appended claims. 1 is a block diagram showing a conventional liquid crystal display device; FIG. 2 is a block diagram showing a liquid crystal display device according to a preferred embodiment of the present invention; FIG. 3 is another block diagram showing a liquid crystal according to a preferred embodiment of the present invention. A display device; and FIG. 4 is a flow chart showing a control method of a liquid crystal display device according to a preferred embodiment of the present invention. Description of component symbols: I Liquid crystal display device II Backlight module III Control unit 15 1356367
112 驅動單元 113 紅、綠、藍發光二極體 114 混光單元 12 液晶顯示面板 121 彩色濾光片 2β 藍光 2g 綠光 2r 紅光 2tr、 2xg ' 2tb 預設紅、綠、藍光強度值 2w 白光 3 液晶顯示裝置 31 背光模組 311 發光單元 312 光感測單元 313 調整單元 32 液晶顯不面板 321 彩色濾光片 322 電晶體基板 323 液晶層 Cri! ' Cn2 Λ Cn3 光電轉換器 〇! 紅色發光二極體 d2 綠色發光二極體 d3 藍色發光二極體 1356367112 drive unit 113 red, green and blue light-emitting diodes 114 light mixing unit 12 liquid crystal display panel 121 color filter 2β blue light 2g green light 2r red light 2tr, 2xg ' 2tb preset red, green, blue light intensity value 2w white light 3 Liquid crystal display device 31 Backlight module 311 Light-emitting unit 312 Light sensing unit 313 Adjustment unit 32 Liquid crystal display panel 321 Color filter 322 Crystal substrate 323 Liquid crystal layer Cri! ' Cn2 Λ Cn3 Photoelectric converter 〇! Red light-emitting two Polar body d2 green light emitting diode d3 blue light emitting diode 1356367
LT 光線 LTr 紅光 ltg 綠光 LTb 藍光 混光區 Μρι、 第一濾光材料 Msi、Ms2、Mm 第二濾光材料 0R2 第一光譜響應 ORlR、ORlG、ORlB 第一光譜響應 〇r2 第二光譜響應 0R2R、OR2G、OR2B 第二光譜響應. Sm 調整訊號 Smr ' SMG ' Smb 調整訊號 Vs 光強度訊號值 Vsr、VSG、VSB 光強度訊號值 VT 目標光強度值 Vtr ' VTG ' VXB 目標光強度值 S卜S3 液晶顯示裝置的控制方法步驟 17LT light Ltr red light ltg green light LTb blue light mixing area Μρι, first filter material Msi, Ms2, Mm second filter material 0R2 first spectral response ORlR, ORlG, ORlB first spectral response 〇r2 second spectral response 0R2R, OR2G, OR2B Second spectral response. Sm adjustment signal Smr ' SMG ' Smb adjustment signal Vs light intensity signal value Vsr, VSG, VSB light intensity signal value VT target light intensity value Vtr ' VTG ' VXB target light intensity value S S3 liquid crystal display device control method step 17