Claims (14)
一種影像顯示器，包含：一閘極驅動器；一源極驅動器；一顯示面板，包含排列成矩陣形式之複數像素，且每一該像素相應有一像素開關，其中同一列的該些像素開關透過一閘極掃描線連接在一起，並受控於該閘極驅動器的掃描控制信號，用以開啟或關閉該列的像素，且同一行的該些像素開關透過一源極資料線連接在一起，並受控於該源極驅動器，用以自該源極驅動器接收顯示資料；及一時序控制器，接收影像圖框資料，並控制該源極驅動器與該閘極驅動器的時序；其中該時序控制器根據該影像圖框資料之影像圖框平均值以判定是否具有特徵圖樣，據以決定是否進行預充放電，該特徵圖樣包含至少一像素對，其由上下相鄰像素所組成，其中一像素的灰階值大於預設的第一臨界值，且另一像素的灰階值小於預設的第二臨界值，且該第一臨界值大於該第二臨界值。
An image display comprising: a gate driver; a source driver; a display panel comprising a plurality of pixels arranged in a matrix form, and each pixel corresponding to a pixel switch, wherein the pixel switches of the same column pass through a gate The pole scan lines are connected together and controlled by the scan control signal of the gate driver to turn on or off the pixels of the column, and the pixel switches of the same row are connected through a source data line and Controlling the source driver for receiving display data from the source driver; and a timing controller for receiving image frame data and controlling timing of the source driver and the gate driver; wherein the timing controller is configured according to The average value of the image frame of the image frame data is determined to determine whether there is a feature pattern, thereby determining whether to perform pre-charge and discharge, and the feature pattern includes at least one pixel pair, which is composed of upper and lower adjacent pixels, wherein one pixel of gray The step value is greater than a preset first threshold, and the grayscale value of the other pixel is less than a preset second threshold, and the first threshold is greater than the Two thresholds.
如申請專利範圍第1項所述之影像顯示器，其中該顯示面板包含一液晶面板。
The image display of claim 1, wherein the display panel comprises a liquid crystal panel.
如申請專利範圍第1項所述之影像顯示器，其中該顯示面板操作於行反轉(column inversion)模式。
The image display of claim 1, wherein the display panel operates in a column inversion mode.
如申請專利範圍第1項所述之影像顯示器，其中該像素開關包含一薄膜電晶體(TFT)。
The image display of claim 1, wherein the pixel switch comprises a thin film transistor (TFT).
如申請專利範圍第4項所述之影像顯示器，其中同一列的該些薄膜電晶體之閘極透過該閘極掃描線連接在一起，且同一行的該些薄膜電晶體之源極透過該源極資料線連接在一起。
The image display of claim 4, wherein the gates of the thin film transistors of the same column are connected together through the gate scan lines, and the sources of the thin film transistors of the same row pass through the source The pole data lines are connected together.
如申請專利範圍第1項所述之影像顯示器，其中該第一臨界值接近或等於最大灰階值，且該第二臨界值接近或等於最小灰階值。
The image display of claim 1, wherein the first threshold is close to or equal to a maximum grayscale value, and the second threshold is close to or equal to a minimum grayscale value.
如申請專利範圍第6項所述之影像顯示器，其中該特徵圖樣之像素對，其中一個像素具黑色灰階值，且另一像素具白色灰階值。
The image display of claim 6, wherein the pixel pair of the feature pattern has one pixel having a black grayscale value and the other pixel having a white grayscale value.
如申請專利範圍第1項所述之影像顯示器，更包含一內容調適背光控制(CABC)單元，其接收該影像圖框資料以產生一影像圖框平均值，其代表全部或部分該影像圖框資料的灰階平均值。
The image display of claim 1, further comprising a content adaptation backlight control (CABC) unit that receives the image frame data to generate an image frame average value, which represents all or part of the image frame. The grayscale average of the data.
如申請專利範圍第8項所述之影像顯示器，其中該時序控制器包含一偵測單元，其根據該影像圖框平均值以判定該影像圖框資料是否具有特徵圖樣。
The image display device of claim 8, wherein the timing controller comprises a detecting unit that determines whether the image frame material has a feature pattern according to the average value of the image frame.
如申請專利範圍第9項所述之影像顯示器，當該影像圖框資料具有特徵圖樣時，則該影像圖框平均值會接近一灰階中間值，該灰階中間值為該影像圖框資料之整個灰階值範圍的中間值。
The image display device of claim 9 is characterized in that, when the image frame material has a feature pattern, the average value of the image frame is close to a grayscale intermediate value, and the grayscale intermediate value is the image frame data. The middle of the entire range of grayscale values.
如申請專利範圍第10項所述之影像顯示器，其中該偵測單元使用一偵測視窗以決定該影像圖框平均值是否落入該偵測視窗，以判定該影像圖框資料具有特徵圖樣。
The image display device of claim 10, wherein the detecting unit uses a detection window to determine whether the average value of the image frame falls within the detection window to determine that the image frame material has a feature pattern.
如申請專利範圍第11項所述之影像顯示器，其中該偵測視窗中跨於該灰階中間值。
The image display of claim 11, wherein the detection window spans the grayscale intermediate value.
如申請專利範圍第9項所述之影像顯示器，其中該源極驅動器包含：一切換開關，其接收該偵測單元於偵測特徵圖樣後所產生的偵測信號；及一般充放電器及預充放電器，其中該偵測信號選擇該一般充放電器及該預充放電器兩者之一，用以對該源極驅動器進行充放電，以輸出該顯示資料至該顯示面板。
The image display device of claim 9, wherein the source driver comprises: a switch that receives the detection signal generated by the detecting unit after detecting the feature pattern; and the general charge and discharge device and the pre-charger The charge and discharge device, wherein the detection signal selects one of the general charge and discharge device and the pre-charger to charge and discharge the source driver to output the display data to the display panel.
如申請專利範圍第13項所述之影像顯示器，其中該一般充放電器或
該預充放電器對該源極驅動器之輸出級電路的電容器進行充放電。
The image display of claim 13, wherein the general charge and discharge device or
The precharger charges and discharges the capacitor of the output stage circuit of the source driver.