TWI601123B - Display driver and flat panel display - Google Patents

Display driver and flat panel display Download PDF

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TWI601123B
TWI601123B TW106104230A TW106104230A TWI601123B TW I601123 B TWI601123 B TW I601123B TW 106104230 A TW106104230 A TW 106104230A TW 106104230 A TW106104230 A TW 106104230A TW I601123 B TWI601123 B TW I601123B
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vertical
display
area
data area
packet
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TW201830372A (en
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Qin-Kai Xu
Yi-Bin Huang
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Chipone Technology (Beijing)Co Ltd
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Description

顯示驅動方法及平面顯示器 Display driving method and flat panel display

本發明是有關於一種顯示器之驅動方法，特別是指一種針對以行動產業處理器介面(MIPI)之顯示器串列介面(DSI)格式傳送的影像訊號之顯示驅動方法。 The present invention relates to a driving method for a display, and more particularly to a display driving method for an image signal transmitted in a Display Serial Interface (DSI) format of a Mobile Industry Processor Interface (MIPI).

參見圖1所示，現有行動裝置1，例如行動電話、iPAD及平板電腦等顯示影像的一種習知方式是由一主機端10，透過行動產業處理器介面(Mobile Industry Processor Interface，簡稱MIPI)之顯示器串列介面(Display Serial Interface，簡稱DSI)(下稱MIPI之顯示器串列介面)傳送一包含複數圖框(frame)資料的影像訊號至平面顯示器20的一顯示驅動模組21，且如圖2所示，顯示驅動模組21會根據影像訊號產生一垂直同步訊號VS，以根據該垂直同步訊號VS控制平面顯示器20的一顯示面板22的顯示頻率(亦即每秒顯示幾個畫面)，因此垂直同步訊號VS的一個訊號週期就是輸出一個圖框的時間。 Referring to FIG. 1, a conventional method for displaying images of an existing mobile device 1, such as a mobile phone, an iPAD, and a tablet computer, is provided by a host terminal 10 through a Mobile Industry Processor Interface (MIPI). A display serial interface (DSI) (hereinafter referred to as MIPI display serial interface) transmits a video signal including a plurality of frame data to a display driving module 21 of the flat display 20, and As shown in FIG. 2, the display driving module 21 generates a vertical synchronization signal VS according to the image signal to control the display frequency of a display panel 22 of the flat panel display 20 according to the vertical synchronization signal VS (that is, display several screens per second). Therefore, one signal period of the vertical sync signal VS is the time for outputting a frame.

且如圖2所示，每一圖框包含一垂直同步區VSA、一垂直後端區VBP、一顯示資料區DA及一垂直前端區VFP，顯示驅動 模組21會根據相鄰兩個圖框的垂直同步區VSA的一間隔時間產生該垂直同步訊號VS，並根據該垂直同步訊號VS和預設的一垂直後端設定值及一垂直前端設定值產生一資料致能訊號DE，以根據該資料致能訊號DE輸出每一圖框的該顯示資料區DA中的顯示資料至顯示面板22。 As shown in FIG. 2, each frame includes a vertical sync area VSA, a vertical back end area VBP, a display data area DA, and a vertical front end area VFP, and the display driver The module 21 generates the vertical synchronization signal VS according to an interval time of the vertical synchronization area VSA of two adjacent frames, and according to the vertical synchronization signal VS and a preset vertical back end setting value and a vertical front end setting value. A data enable signal DE is generated to output the display data in the display data area DA of each frame to the display panel 22 according to the data enable signal DE.

其中每一圖框的垂直後端區VBP及垂直前端區VFP是主機端10設定顯示資料區DA的顯示資料要輸出至顯示面板22的時間，而垂直後端設定值及垂直前端設定值是顯示驅動模組21設定要輸出顯示資料區DA的顯示資料至顯示面板22的時間，亦即顯示驅動模組21會在垂直同步訊號VS的同步脈波之後延遲該垂直後端設定值代表的一時間後，才輸出顯示資料區DA的顯示資料，並在顯示資料輸出完畢之後延遲該垂直後端設定值代表的一時間後，再以相同的方式接著輸出下一個圖框之顯示資料區DA的顯示資料。 The vertical rear end area VBP and the vertical front end area VFP of each frame are the time when the display data of the display data area DA is output to the display panel 22 by the host terminal 10, and the vertical rear end setting value and the vertical front end setting value are displayed. The driving module 21 sets the time for outputting the display data of the display data area DA to the display panel 22, that is, the display driving module 21 delays the time represented by the vertical rear end setting value after the synchronous pulse wave of the vertical synchronization signal VS. After that, the display data of the display data area DA is output, and after the display data is outputted, the display of the display data area DA of the next frame is outputted in the same manner after delaying the time represented by the vertical rear end setting value. data.

因此，如圖2所示，當顯示驅動模組21預設的垂直後端設定值及垂直前端設定值與主機端10設定的該垂直後端區VBP及垂直前端區VFP的時間長度不同時，將使顯示驅動模組21產生的資料致能訊號DE的一顯示資料輸出區間VDP與圖框的顯示資料區DA不對應，而導致顯示面板22顯示的畫面發生向上(垂直後端區的時間長度大於後端設定值所對應的時間)或向下偏移(垂直後端區的時間長度小於後端設定值所對應的時間)的情況。 Therefore, as shown in FIG. 2, when the vertical rear end setting value and the vertical front end setting value preset by the display driving module 21 are different from the time lengths of the vertical rear end region VBP and the vertical front end region VFP set by the host terminal 10, A display material output section VDP of the data enable signal DE generated by the display driver module 21 does not correspond to the display material area DA of the frame, and the screen displayed by the display panel 22 is caused to be upward (the length of the vertical rear end zone). The case is greater than the time corresponding to the backend set value) or the downward shift (the time length of the vertical back end zone is less than the time corresponding to the backend set value).

為了解決上述問題，由於無法得知主機端10設定的該垂直後端區VBP及垂直前端區VFP的時間長度，因此習知的做法是由工程人員現場以手動方式隨機調整顯示驅動模組21的該垂直後端設定值及該垂直前端設定值，直到顯示面板22正常顯示畫面為止。然而，由於不同種類或不同型號的行動裝置1之主機端10設定的該垂直後端區VBP及垂直前端區VFP的時間長度往往不盡相同，以致工程人員在產品生產階段，必需針對不同種類或不同型號的行動裝置1一一手動調整其顯示驅動模組21中預設的該垂直後端設定值及該垂直前端設定值，過程不但繁複、曠日費時且耗費人力。 In order to solve the above problem, since the length of the vertical back end area VBP and the vertical front end area VFP set by the host end 10 cannot be known, it is conventional practice for the engineer to manually adjust the display driving module 21 manually by the field. The vertical rear end setting value and the vertical front end setting value are until the display panel 22 normally displays the screen. However, since the lengths of the vertical rear end region VBP and the vertical front end region VFP of the different types or different types of mobile devices 1 are often different, the engineers must be different types or The different types of mobile devices 1 manually adjust the vertical rear end setting value and the vertical front end setting value preset in the display driving module 21, which is complicated, time-consuming and labor-intensive.

因此，本發明的目的，即在提供一種能根據接收的影像訊號自動調整驅動訊號之時序的顯示驅動方法及應用該方法的平面顯示器。 Accordingly, it is an object of the present invention to provide a display driving method capable of automatically adjusting the timing of a driving signal according to a received image signal and a flat panel display using the same.

於是，本發明顯示驅動方法，應用於一用以驅動一顯示面板的顯示驅動模組，該顯示驅動模組接收由一主機端的MIPI之顯示器串列介面傳來的影像訊號，該影像訊號包含多個圖框，每一圖框包含依序排列的一垂直同步區、一垂直後端區、一顯示資料區及一垂直前端區；該方法包括：(A)該顯示驅動模組根據該影像訊號產生一垂直同步訊號，並根據該垂直同步訊號和預設的一垂直後端設定值及一垂直前端設定值，依序輸出每一圖框的該顯示資料區 中的顯示資料至該顯示面板；(B)該顯示驅動模組偵測該影像訊號中的前N(N為整數且N≧2)個圖框，並計算該前N個圖框中每一個圖框的該垂直後端區的一第一時間長度及該垂直前端區的一第二時間長度；及(C)該顯示驅動模組判斷該等第一時間長度相同但與該垂直後端設定值不同，且該等第二時間長度相同但與該垂直前端設定值不同時，則以該第一時間長度更新該垂直後端設定值並以該第二時間長度更新該垂直前端設定值。 Therefore, the display driving method of the present invention is applied to a display driving module for driving a display panel, and the display driving module receives an image signal transmitted from a MIPI display serial interface of a host end, and the image signal includes a plurality of image signals. a frame, each frame includes a vertical sync area, a vertical back end area, a display data area and a vertical front end area arranged in sequence; the method comprises: (A) the display driving module is based on the image signal Generating a vertical synchronization signal, and sequentially outputting the display data area of each frame according to the vertical synchronization signal and a preset vertical backend setting value and a vertical front end setting value Displaying data in the display panel; (B) the display driving module detects the first N (N is an integer and N≧2) frames in the image signal, and calculates each of the first N frames a first time length of the vertical rear end region of the frame and a second time length of the vertical front end region; and (C) the display driving module determines that the first time lengths are the same but are set with the vertical back end When the values are different, and the second time lengths are the same but different from the vertical front end setting value, the vertical rear end setting value is updated with the first time length and the vertical front end setting value is updated with the second time length.

在本發明的一實施例中，該垂直同步區包含一代表垂直同步開始的垂直同步開始封包及一代表垂直同步結束的垂直同步結束封包，且在步驟(A)中，該顯示驅動模組是根據收到相鄰兩個該垂直同步開始封包的時間，計算得到該垂直同步訊號的頻率，並據以產生該垂直同步訊號。 In an embodiment of the invention, the vertical sync area includes a vertical sync start packet representing the start of vertical sync and a vertical sync end packet representing the end of vertical sync, and in step (A), the display driver module is The frequency of the vertical synchronization signal is calculated according to the time when the adjacent two vertical synchronization start packets are received, and the vertical synchronization signal is generated accordingly.

在本發明的一實施例中，該顯示資料區包括複數個線資料區，每一個線資料區包含依序排列的一水平同步區、一水平後端區、一像素資料區及一水平前端區，其中該水平同步區包含一代表水平同步開始的水平同步開始封包及一代表水平同步結束的水平同步結束封包；且在步驟(B)中，該垂直後端區是指從該垂直同步結束封包至該顯示資料區的該第一個線資料區的該水平同步結束封包的區間，且該顯示驅動模組是根據收到該垂直同步結束封包的時間及收到該顯示資料區的該第一個線資料區的該水平同步結束 封包的時間，計算得到該第一時間長度；而該垂直前端區是指從該顯示資料區之後的第一個水平同步開始封包到下一個圖框的該垂直同步開始封包之前的區間，且該顯示驅動模組是根據收到該顯示資料區之後的第一個水平同步開始封包的時間及收到下一個圖框的該垂直同步開始封包的時間，計算得到該第二時間長度。 In an embodiment of the invention, the display data area includes a plurality of line data areas, each line data area includes a horizontal synchronization area, a horizontal back end area, a pixel data area and a horizontal front end area arranged in sequence. The horizontal synchronization area includes a horizontal synchronization start packet representing the start of horizontal synchronization and a horizontal synchronization end packet representing the end of horizontal synchronization; and in step (B), the vertical back end area refers to the end of the packet from the vertical synchronization Up to the interval of the horizontal synchronization end packet of the first line data area of the display data area, and the display driving module is based on receiving the vertical synchronization end packet and receiving the first of the display data area The horizontal synchronization of the line data area ends The time of the packet is calculated, and the vertical front end area refers to a section from the first horizontal synchronization start packet after the display data area to the vertical synchronization start packet of the next frame, and the The display driver module calculates the second time length according to the time when the first horizontal synchronization start packet is received after receiving the display data area and the time when the vertical synchronization start packet is received in the next frame.

在本發明的一實施例中，在上述步驟(B)中，該顯示驅動模組根據收到相鄰兩個線資料區的該水平同步開始封包的時間，計算得到一水平同步訊號的頻率，並據以產生該水平同步訊號，且根據該水平同步訊號依序輸出該顯示資料區中的每一個線資料區中的該像素資料區的像素資料至該顯示面板。 In an embodiment of the present invention, in the step (B), the display driving module calculates the frequency of a horizontal synchronization signal according to the time when the horizontal synchronization start packet is received in the adjacent two line data areas. And generating the horizontal synchronization signal according to the sequence, and sequentially outputting pixel data of the pixel data area in each of the line data areas in the display data area to the display panel according to the horizontal synchronization signal.

在本發明的一實施例中，在上述步驟(B)中，該顯示驅動模組根據該垂直掃描訊號、該後端設定值及該前端設定值產生一資料致能訊號，並根據該資料致能訊號輸出該顯示資料區的顯示資料至該顯示面板。 In an embodiment of the present invention, in the step (B), the display driving module generates a data enable signal according to the vertical scan signal, the back end setting value and the front end setting value, and according to the data The signal can output the display data of the display data area to the display panel.

再者，本發明實現上述方法的一種平面顯示器，用以顯示由一主機端的MIPI之顯示器串列介面傳來的一影像訊號，該影像訊號包含多個圖框，每一圖框包含依序排列的一垂直同步區、一垂直後端區、一顯示資料區及一垂直前端區；且該平面顯示器包括一顯示面板及一顯示驅動模組，其與該顯示面板電連接，並根據該影像訊號產生一垂直同步訊號，且根據該垂直同步訊號和預設的一 垂直後端設定值及一垂直前端設定值，依序輸出每一圖框的該顯示資料區中的顯示資料至該顯示面板；該顯示驅動模組還偵測該影像訊號中的前N個圖框，且計算該前N(N為整數且N≧2)個圖框中每一個圖框的該垂直後端區的一第一時間長度及該垂直前端區的一第二時間長度，並於判斷該等第一時間長度相同但與該垂直後端設定值不同，且該等第二時間長度相同但與該垂直前端設定值不同時，以該第一時間長度更新該垂直後端設定值並以該第二時間長度更新該垂直前端設定值。 Furthermore, the present invention implements a flat-panel display for performing the above method, and is configured to display an image signal transmitted from a serial interface of a MIPI display of a host end, the image signal comprising a plurality of frames, each frame comprising sequentially arranged a vertical sync area, a vertical back end area, a display data area, and a vertical front end area; and the flat panel display includes a display panel and a display driving module, and is electrically connected to the display panel, and according to the image signal Generating a vertical sync signal, and according to the vertical sync signal and the preset one The vertical back end setting value and a vertical front end setting value sequentially output the display data in the display data area of each frame to the display panel; the display driving module also detects the first N pictures in the image signal a frame, and calculating a first time length of the vertical back end region of each of the front N (N is an integer and N≧2) frames and a second time length of the vertical front end region, and Determining that the first time lengths are the same but different from the vertical back end setting values, and the second time lengths are the same but different from the vertical front end setting values, the vertical back end setting values are updated with the first time length The vertical front end set value is updated for the second length of time.

在本發明的一實施例中，該顯示驅動模組包括一用以接收該影像訊號的傳輸介面，一與該傳輸介面電連接的解碼器，一與該解碼器電連接的時序控制器以及一與該時序控制器及該顯示面板電連接的源極驅動器，該解碼器從該傳輸介面傳來的每一圖框中取出該垂直同步區、該後端資料區、該顯示資料區及該前端資料區，並將該顯示資料區傳送給該時序控制器；其中該垂直同步區包含一代表垂直同步開始的垂直同步開始封包及一代表垂直同步結束的垂直同步結束封包，該解碼器根據收到相鄰兩個該垂直同步開始封包的時間，計算得到該垂直同步訊號的頻率，並據以產生該垂直同步訊號，且該時序控制器根據該垂直同步訊號和該垂直後端設定值及該垂直前端設定值產生一資料致能訊號，並根據該資料致能訊號控制該源極驅動器輸出該顯示資料區中的顯示資料至該顯示 面板。 In an embodiment of the invention, the display driving module includes a transmission interface for receiving the image signal, a decoder electrically connected to the transmission interface, a timing controller electrically connected to the decoder, and a timing controller a source driver electrically connected to the timing controller and the display panel, the decoder extracting the vertical synchronization area, the back end data area, the display data area, and the front end from each frame transmitted from the transmission interface a data area, and transmitting the display data area to the timing controller; wherein the vertical synchronization area includes a vertical synchronization start packet representing a start of vertical synchronization and a vertical synchronization end packet representing end of vertical synchronization, the decoder receiving Calculating the frequency of the vertical synchronization signal by two adjacent vertical synchronization start packets, and generating the vertical synchronization signal, and the timing controller according to the vertical synchronization signal and the vertical back end setting value and the vertical The front end set value generates a data enable signal, and controls the source driver to output the display in the display data area according to the data enable signal Feeding to the display panel.

在本發明的一實施例中，該解碼器計算該前N個圖框的該垂直後端區的該第一時間長度及該垂直前端區的該第二時間長度，並將該垂直同步訊號、該等第一時間長度及該等第二時間長度傳送給該時序控制器，該時序控制器判斷該等第一時間長度相同但與該垂直後端設定值不同，且該等第二時間長度相同但與該垂直前端設定值不同時，則以該第一時間長度更新該垂直後端設定值並以該第二時間長度更新該垂直前端設定值。 In an embodiment of the invention, the decoder calculates the first time length of the vertical back end region of the first N frames and the second time length of the vertical front end region, and the vertical synchronization signal, The first time length and the second time length are transmitted to the timing controller, and the timing controller determines that the first time lengths are the same but different from the vertical back end setting values, and the second time lengths are the same However, when the vertical front end setting value is different, the vertical rear end setting value is updated with the first time length and the vertical front end setting value is updated with the second time length.

在本發明的一實施例中，該顯示資料區包括複數個線資料區，每一個線資料區包含依序排列的一水平同步區、一水平後端區、一像素資料區及一水平前端區，其中該水平同步區包含一代表水平同步開始的水平同步開始封包及一代表水平同步結束的水平同步結束封包；該垂直後端區是指從該垂直同步結束封包至該顯示資料區的該第一個線資料區的該水平同步結束封包的區間，且該解碼器是根據收到該垂直同步結束封包的時間及收到該顯示資料區的該第一個線資料區的該水平同步結束封包的時間，計算得到該第一時間長度；而該垂直前端區是指從該顯示資料區之後的第一個水平同步開始封包到下一個圖框的該垂直同步開始封包之前的區間，且該解碼器是根據收到該顯示資料區之後的第一個水平同步開始封包的時間及收到下一個圖框的該垂直同步開始封包的時間，計 算得到該第二時間長度。 In an embodiment of the invention, the display data area includes a plurality of line data areas, each line data area includes a horizontal synchronization area, a horizontal back end area, a pixel data area and a horizontal front end area arranged in sequence. The horizontal synchronization area includes a horizontal synchronization start packet representing the start of horizontal synchronization and a horizontal synchronization end packet representing the end of horizontal synchronization; the vertical back end region refers to the first packet from the vertical synchronization end packet to the display data area The horizontal synchronization end of the packet of a line data area, and the decoder ends the packet according to the time when the vertical synchronization end packet is received and the first line data area of the display data area is received. And calculating the first time length; and the vertical front end area refers to an interval from the first horizontal synchronization start packet after the display data area to the vertical synchronization start packet of the next frame, and the decoding The device starts to seal according to the first horizontal synchronization start packet after receiving the display data area and the vertical synchronization start of the next frame is received. Time count Calculate the second length of time.

在本發明的一實施例中，該解碼器根據收到相鄰兩個線資料區的該水平同步開始封包的時間，計算得到一水平同步訊號的頻率，且據以產生該水平同步訊號並提供給該時序控制器，且該時序控制器根據該水平同步訊號控制該源極驅動器依序輸出該顯示資料區中的每一個線資料區中的該像素資料區中的像素資料至該顯示面板，並根據該水平同步訊號控制內建在該顯示面板上的一閘極驅動器驅動該顯示面板。 In an embodiment of the present invention, the decoder calculates a frequency of a horizontal synchronization signal according to the time when the horizontal synchronization start packet is received in the adjacent two line data areas, and generates the horizontal synchronization signal and provides the same. Giving the timing controller, and the timing controller controls the source driver to sequentially output pixel data in the pixel data area in each of the line data areas of the display data area to the display panel according to the horizontal synchronization signal. And controlling the display panel by a gate driver built in the display panel according to the horizontal synchronization signal.

本發明的功效在於：藉由顯示驅動模組自動偵測來自主機端的影像訊號之圖框中設定的垂直後端區及垂直前端區的時間長度，並與本身預設的垂直後端設定值及垂直前端設定值相較，而即時將該垂直後端設定值更新成與垂直後端區的時間長度一致，並將垂直前端設定值更新成與垂直前端區的時間長度一致，使顯示面板能維持正常顯示，且因此不需工程人員針對不同種類或不同型號的行動裝置手動調整顯示驅動模組中預設的該垂直後端設定值及該垂直前端設定值，不但能縮短產品調校時間並節省大量人力成本，而達成本發明的目的。 The effect of the invention is that the display driving module automatically detects the length of the vertical back end area and the vertical front end area set in the frame of the image signal from the host end, and the preset vertical back end setting value and The vertical front end setting value is compared, and the vertical rear end setting value is updated to coincide with the length of the vertical rear end area, and the vertical front end setting value is updated to be consistent with the vertical front end area, so that the display panel can be maintained. Normal display, and therefore does not require the engineer to manually adjust the vertical rear end setting value and the vertical front end setting value preset in the display driving module for different types or different types of mobile devices, not only shortening the product adjustment time and saving A large amount of labor costs are achieved to achieve the object of the present invention.

3‧‧‧行動裝置 3‧‧‧Mobile devices

30‧‧‧主機端 30‧‧‧Host side

40‧‧‧平面顯示器 40‧‧‧ flat panel display

41‧‧‧顯示面板 41‧‧‧ display panel

42‧‧‧顯示驅動模組 42‧‧‧Display driver module

43‧‧‧傳輸介面 43‧‧‧Transport interface

44‧‧‧解碼器 44‧‧‧Decoder

VSE‧‧‧垂直同步結束封包 VSE‧‧‧Vertical Synchronization End Packet

LA‧‧‧線資料區 LA‧‧‧Line data area

HSA‧‧‧水平同步區 HSA‧‧‧Horizontal Synchronization Zone

HSS‧‧‧水平同步開始封包 HSS‧‧‧ horizontal synchronization start packet

HSE‧‧‧水平同步結束封包 HSE‧‧‧ horizontal synchronization end packet

HBP‧‧‧水平後端區 HBP‧‧‧ horizontal back end area

HFP‧‧‧水平前端區 HFP‧‧‧ horizontal front end zone

45‧‧‧時序控制器 45‧‧‧Timing controller

46‧‧‧源極驅動器 46‧‧‧Source Driver

411‧‧‧閘極驅動器 411‧‧‧gate driver

VSA‧‧‧垂直同步區 VSA‧‧‧ vertical sync area

VBP‧‧‧垂直後端區 VBP‧‧‧Vertical back end zone

DA‧‧‧顯示資料區 DA‧‧‧Display area

VFP‧‧‧垂直前端區 VFP‧‧‧Vertical front end zone

VSS‧‧‧垂直同步開始封包 VSS‧‧‧Vertical Synchronization Start Packet

PA‧‧‧像素資料區 PA‧‧‧Pixel data area

VS‧‧‧垂直同步訊號 VS‧‧‧ vertical sync signal

VBS‧‧‧垂直後端設定值 VBS‧‧‧Vertical backend setpoint

VFS‧‧‧垂直前端設定值 VFS‧‧‧Vertical front end setting

DE‧‧‧資料致能訊號 DE‧‧‧Information enable signal

VDP‧‧‧顯示資料輸出區間 VDP‧‧‧ Display data output interval

HS‧‧‧水平掃描訊號 HS‧‧‧ horizontal scanning signal

S1~S6‧‧‧步驟 S1~S6‧‧‧Steps

本發明的其他的特徵及功效，將於參照圖式的實施方式中清楚地呈現，其中： 圖1是一電路方塊圖，說明習知的一顯示驅動模組應用於一行動裝置；圖2是一時序示意圖，說明影像訊號包括的圖框包含的內容及根據該圖框產生的垂直同步訊號；圖3是一電路方塊圖，說明本發明平面顯示器的一實施例應用於一行動裝置；圖4是一電路方塊圖，說明本實施例的顯示驅動模組主要包括的元件；圖5是一時序示意圖，說明本實施例的影像訊號之圖框包含的內容以及根據圖框產生的垂直同步訊號及水平同步訊號；及圖6是一流程圖，說明本實施例的顯示驅動模組根據圖框的該垂直後端區的第一時間長度及該垂直前端區的第二時間長度，更新該垂直同步訊號的該垂直後端設定值及該垂直前端設定值。 Other features and effects of the present invention will be apparent from the embodiments of the drawings, wherein: 1 is a circuit block diagram illustrating a conventional display driver module applied to a mobile device; FIG. 2 is a timing diagram illustrating the content of the frame included in the image signal and the vertical sync signal generated according to the frame FIG. 3 is a circuit block diagram showing an embodiment of the flat panel display of the present invention applied to a mobile device; FIG. 4 is a circuit block diagram showing components mainly included in the display driving module of the embodiment; FIG. The sequence diagram of the video signal frame of the embodiment and the vertical synchronization signal and the horizontal synchronization signal generated according to the frame; and FIG. 6 is a flowchart illustrating the display driving module according to the embodiment according to the frame The first time length of the vertical rear end region and the second time length of the vertical front end region update the vertical rear end setting value of the vertical synchronization signal and the vertical front end setting value.

在本發明被詳細描述之前，應當注意在以下的說明內容中，類似的元件是以相同的編號來表示。 Before the present invention is described in detail, it should be noted that in the following description, similar elements are denoted by the same reference numerals.

參閱圖3至圖6，是本發明顯示驅動方法的一實施例，其應用於如圖3所示之一包括一主機端30及本發明的一平面顯示器40的行動裝置3，該平面顯示器40的一實施例主要包含一顯示面板41及一驅動該顯示面板41的顯示驅動模組42，且如圖4所 示，在本實施例中，顯示面板41具有一內建在其中的閘極驅動器(Gate Driver on Array，簡稱GOA)411。該顯示驅動模組42主要包括一傳輸介面43，一與該傳輸介面43電連接的解碼器44，一與該解碼器44及該閘極驅動器411電連接的時序控制器45，以及一與該時序控制器45及該顯示面板41電連接的源極驅動器46。 Referring to FIG. 3 to FIG. 6 , an embodiment of the display driving method of the present invention is applied to a mobile device 3 including a host end 30 and a flat display 40 of the present invention as shown in FIG. 3 . An embodiment mainly includes a display panel 41 and a display driving module 42 for driving the display panel 41, and as shown in FIG. It is shown that in the embodiment, the display panel 41 has a Gate Driver on Array (GOA) 411 built therein. The display driver module 42 mainly includes a transmission interface 43, a decoder 44 electrically connected to the transmission interface 43, a timing controller 45 electrically connected to the decoder 44 and the gate driver 411, and a The timing controller 45 and the source driver 46 electrically connected to the display panel 41.

其中傳輸介面43是一MIPI之顯示器串列介面(DSI)，其與主機端30電耦接，以接收由主機端30的MIPI之顯示器串列介面傳來的一影像訊號。且如圖5所示，該影像訊號包含多個圖框(frame)，每一圖框包含依序排列的一垂直同步區VSA、一垂直後端區VBP、一顯示資料區DA及一垂直前端區VFP。 The transmission interface 43 is a MIPI display serial interface (DSI), which is electrically coupled to the host terminal 30 to receive an image signal transmitted by the MIPI display serial interface of the host terminal 30. As shown in FIG. 5, the image signal includes a plurality of frames, each frame including a vertical synchronization area VSA, a vertical back end area VBP, a display data area DA, and a vertical front end. District VFP.

而本實施例的顯示驅動方法如圖6所示，首先，顯示驅動模組42被啟動後，其傳輸介面43接收來自主機端30的影像訊號並傳送給解碼器44，且如圖6的步驟S1所示，顯示驅動模組42根據該影像訊號產生一垂直同步訊號VS，並根據該垂直同步訊號VS和預設的一垂直後端設定值VBS及一垂直前端設定值VFS，依序輸出每一圖框的該顯示資料區中的顯示資料至該顯示面板41。具體而言，該解碼器44從該傳輸介面43傳來的每一圖框中取出該垂直同步區VSA、該垂直後端區VBP、該顯示資料區DA及該垂直前端區VFP，並將該顯示資料區DA傳送給該時序控制器45。 The display driving method of this embodiment is as shown in FIG. 6. First, after the display driving module 42 is activated, the transmission interface 43 receives the image signal from the host terminal 30 and transmits it to the decoder 44, and the steps of FIG. 6 are performed. As shown in S1, the display driving module 42 generates a vertical synchronization signal VS according to the image signal, and sequentially outputs each according to the vertical synchronization signal VS and a preset vertical backend setting value VBS and a vertical front end setting value VFS. The display material in the display data area of a frame is displayed to the display panel 41. Specifically, the decoder 44 takes out the vertical synchronization area VSA, the vertical back end area VBP, the display data area DA, and the vertical front end area VFP from each frame transmitted from the transmission interface 43 and The display material area DA is transmitted to the timing controller 45.

其中，如圖5所示，該垂直同步區VSA是指從一代表垂直同步開始的垂直同步開始封包VSS到一代表垂直同步結束的垂直同步結束封包VSE之前的區間，因此該解碼器44能根據收到相鄰兩個該垂直同步開始封包VSS的時間，計算得到該垂直同步訊號VS的頻率，並據以產生該垂直同步訊號VS。且該時序控制器45根據該垂直同步訊號VS和該垂直後端設定值VBS及該垂直前端設定值VFS產生一資料致能訊號DE，並根據該資料致能訊號DE控制該源極驅動器46輸出該顯示資料區DA中的顯示資料至該顯示面板41。 As shown in FIG. 5, the vertical synchronization area VSA refers to a section from a vertical synchronization start packet VSS which represents vertical synchronization to a vertical synchronization end packet VSE which represents the end of vertical synchronization, so that the decoder 44 can After receiving the two adjacent vertical synchronization start packets VSS, the frequency of the vertical synchronization signal VS is calculated, and the vertical synchronization signal VS is generated accordingly. The timing controller 45 generates a data enable signal DE according to the vertical sync signal VS and the vertical back end set value VBS and the vertical front end set value VFS, and controls the output of the source driver 46 according to the data enable signal DE. The display material in the display material area DA is displayed on the display panel 41.

且如圖6的步驟S2所示，該顯示驅動模組42偵測該影像訊號中的前N個圖框並記錄，其中N為整數且N≧2，且此N值可依據實際需求調整。然後，顯示驅動模組42執行圖6的步驟S3，計算該前N個圖框中每一個圖框的該垂直後端區VBP的一第一時間長度及該垂直前端區VFP的一第二時間長度。 As shown in step S2 of FIG. 6 , the display driving module 42 detects and records the first N frames in the image signal, where N is an integer and N ≧ 2, and the N value can be adjusted according to actual needs. Then, the display driving module 42 performs step S3 of FIG. 6 to calculate a first time length of the vertical back end region VBP of each of the first N frames and a second time of the vertical front end region VFP. length.

具體而言，如圖5所示，該顯示資料區DA包括複數個線資料區LA，例如若顯示面板41的解析度為1920X1080個畫素，則該顯示資料區DA將包括1080個線資料區LA。每一個線資料區LA包含依序排列的一水平同步區HSA、一水平後端區HBP、一像素資料區PA及一水平前端區HFP，其中，該水平同步區HSA包含一代表水平同步開始的水平同步開始封包HSS及一代 表水平同步結束的水平同步結束封包HSE，該像素資料區PA包括複數個像素資料，例如若顯示面板41的解析度為1920X1080個畫素，則該像素資料區PA將包括1920筆像素資料。 Specifically, as shown in FIG. 5, the display data area DA includes a plurality of line data areas LA. For example, if the resolution of the display panel 41 is 1920×1080 pixels, the display data area DA will include 1080 line data areas. LA. Each of the line data areas LA includes a horizontal synchronization area HSA, a horizontal back area HBP, a pixel data area PA and a horizontal front end area HFP, wherein the horizontal synchronization area HSA includes a horizontal synchronization start. Horizontal synchronization starts to pack HSS and generation The horizontal synchronization end packet HSE of the horizontal synchronization end of the table includes a plurality of pixel data. For example, if the resolution of the display panel 41 is 1920×1080 pixels, the pixel data area PA will include 1920 pixel data.

且該垂直後端區VBP是指從該垂直同步結束封包VSE至該顯示資料區DA的該第一個線資料區LA的該水平同步結束封包HSE的區間，因此，該解碼器44能根據收到該垂直同步結束封包VSE的時間及收到該顯示資料區DA的該第一個線資料區LA的該水平同步結束封包HSE的時間，計算得到該垂直後端區VBP的該第一時間長度。 And the vertical back end area VBP refers to the interval from the vertical synchronization end packet VSE to the horizontal synchronization end packet HSE of the first line data area LA of the display data area DA, and therefore, the decoder 44 can receive The first time length of the vertical back end region VBP is calculated by the time when the vertical synchronization end packet VSE is received and the horizontal synchronization end packet HSE of the first line data area LA of the display data area DA is received. .

而該垂直前端區VFP是指從該顯示資料區DA之後的第一個水平同步開始封包HSS到下一個圖框的該垂直同步開始封包VSS之前的區間，因此，該解碼器44能根據收到該顯示資料區DA之後的第一個水平同步開始封包HSS的時間及收到下一個圖框的該垂直同步開始封包VSS的時間，計算得到該垂直前端區VFP的該第二時間長度。 The vertical front end area VFP refers to the interval from the first horizontal synchronization start packet HSS after the display data area DA to the vertical synchronization start packet VSS of the next frame, and therefore, the decoder 44 can receive the packet according to the reception. The time after the first horizontal synchronization start packet HSS after the data area DA is displayed and the time when the vertical synchronization start packet VSS of the next frame is received is calculated, and the second time length of the vertical front end region VFP is calculated.

接著，如圖6的步驟S4，該顯示驅動模組42的時序控制器45判斷該等第一時間長度是否相同以及該等第二時間長度是否相同，若否，則回到步驟S1，若是，則執行步驟S5，進一步判斷該等第一時間長度與該垂直後端設定值VBS是否相同以及該等第二時間長度與該垂直前端設定值VFS是否相同，若是，則回到 步驟S1，若否，表示其產生的資料致能訊號DE的一顯示資料輸出區間VDP與圖框的顯示資料區DA不對應，將導致顯示面板41顯示的畫面發生向上或向下偏移的情況，因此，該顯示驅動模組42的時序控制器45會執行步驟S6，以該第一時間長度更新該垂直後端設定值VBS，並以該第二時間長度更新該垂直前端設定值VFS，使得資料致能訊號DE的顯示資料輸出區間VDP與圖框的顯示資料區DA對應之後，再回到步驟S1。 Next, in step S4 of FIG. 6, the timing controller 45 of the display driving module 42 determines whether the first time lengths are the same and whether the second time lengths are the same. If not, the process returns to step S1, and if so, Step S5 is performed to further determine whether the first time length is the same as the vertical back end setting value VBS and whether the second time length is the same as the vertical front end setting value VFS, and if yes, return Step S1, if not, indicating that the display data output interval VDP of the data enable signal DE generated does not correspond to the display data area DA of the frame, which may cause the screen displayed by the display panel 41 to shift upward or downward. Therefore, the timing controller 45 of the display driving module 42 performs step S6 to update the vertical backend setting value VBS with the first time length, and updates the vertical front end setting value VFS with the second time length, so that After the display data output section VDP of the data enable signal DE corresponds to the display data area DA of the frame, the process returns to step S1.

藉此，當時序控制器45中預設的該垂直後端設定值VBS及該垂直前端設定值VFS與收到的影像訊號中的該垂直後端區VBP及該垂直前端區VFP的時間長度不同時，時序控制器45可以自動且即時地將該垂直後端設定值VBS及該垂直前端設定值VFS調整至與影像訊號中的該垂直後端區VBP及該垂直前端區VFP的時間長度相同，使得致能訊號DE的顯示資料輸出區間VDP能與影像訊號的顯示資料區DA的時序對應，使顯示面板41能正常顯示畫面，而不致發生顯示畫面發生向上或向下偏移的情況。 Thereby, the vertical rear end setting value VBS preset in the timing controller 45 and the vertical front end setting value VFS are different from the vertical back end area VBP and the vertical front end area VFP in the received image signal. The timing controller 45 can automatically and instantaneously adjust the vertical back end set value VBS and the vertical front end set value VFS to be the same as the length of the vertical back end area VBP and the vertical front end area VFP in the image signal. The display data output section VDP of the enable signal DE can be associated with the timing of the display data area DA of the image signal, so that the display panel 41 can display the screen normally without causing the display screen to shift upward or downward.

此外，該顯示驅動模組42的解碼器44還根據收到相鄰兩個線資料區LA的該水平同步開始封包HSS的時間，計算得到一水平同步訊號HS的頻率，並據以產生該水平同步訊號HS並提供給時序控制器45，因此時序控制器45將根據該水平同步訊號HS控制該源極驅動器46依序輸出該顯示資料區DA中的每一個線 資料區LA中的像素資料區PA的像素資料至該顯示面板41，並根據該水平同步訊號HS控制內建在該顯示面板41上的閘極驅動器411同步驅動該顯示面板41，亦即在水平同步訊號HS的一個訊號週期內，源極驅動器46將輸出一個線資料區LA中的像素資料區PA的像素資料至該顯示面板41，同時閘極驅動器411會同步驅動該顯示面板41之與該線資料區LA對應的一列畫素，使顯示該線資料區LA中的像素資料區PA的像素資料。 In addition, the decoder 44 of the display driving module 42 further calculates the frequency of a horizontal synchronization signal HS according to the time when the horizontal synchronization start of the HSS is received from the adjacent two line data areas LA, and the level is generated accordingly. The synchronization signal HS is supplied to the timing controller 45, so the timing controller 45 controls the source driver 46 to sequentially output each of the display data areas DA according to the horizontal synchronization signal HS. The pixel data of the pixel data area PA in the data area LA is sent to the display panel 41, and the gate driver 411 built in the display panel 41 is controlled to synchronously drive the display panel 41 according to the horizontal synchronization signal HS, that is, horizontally During a signal period of the synchronization signal HS, the source driver 46 outputs the pixel data of the pixel data area PA in the line data area LA to the display panel 41, and the gate driver 411 synchronously drives the display panel 41. A column of pixels corresponding to the line data area LA causes pixel data of the pixel data area PA in the line data area LA to be displayed.

值得一提的是，上述該垂直後端設定值VBS、該垂直前端設定值VFS、該垂直後端區VBP及該垂直前端區VFP的時間長度皆是以水平同步訊號HS的訊號週期來表示，例如圖5所示，假設該垂直後端設定值VBS為水平同步訊號HS的5個訊號週期，該垂直前端設定值VFS為水平同步訊號HS的4個訊號週期，而該垂直後端區VBP包含水平同步訊號HS的7個訊號週期，該垂直前端區VFP包含水平同步訊號HS的6個訊號週期，那麼時序控制器45只要將該垂直後端設定值VBS更新為7個訊號週期，並將該垂直前端設定值VFS更新為6個訊號週期，就能使致能訊號DE的顯示資料輸出區間VDP與影像訊號的顯示資料區DA的時序對應。 It is to be noted that the vertical rear end set value VBS, the vertical front end set value VFS, the vertical back end area VBP and the vertical front end area VFP are represented by a signal period of the horizontal synchronization signal HS. For example, as shown in FIG. 5, it is assumed that the vertical back end setting value VBS is five signal periods of the horizontal synchronization signal HS, and the vertical front end setting value VFS is four signal periods of the horizontal synchronization signal HS, and the vertical back end area VBP includes 7 horizontal signal periods of the horizontal synchronization signal HS, the vertical front end area VFP includes 6 signal periods of the horizontal synchronization signal HS, then the timing controller 45 only needs to update the vertical back end setting value VBS to 7 signal periods, and the The vertical front end set value VFS is updated to six signal periods, so that the display data output interval VDP of the enable signal DE corresponds to the timing of the display data area DA of the video signal.

綜上所述，本發明藉由顯示驅動模組42自動偵測來自主機端30的影像訊號之圖框中設定的垂直後端區VBP及垂直前端區 VFP的時間長度，並與本身預設的垂直後端設定值VBS及垂直前端設定值VFS相較，而即時將該垂直後端設定值VBS更新成與垂直後端區VBP的時間長度一致，並將垂直前端設定值VFS更新成與垂直前端區VFP的時間長度一致，使顯示面板41能維持正常顯示，因此在行動裝置3生產階段，即不需工程人員針對不同種類或不同型號的行動裝置3手動調整顯示驅動模組42中預設的該垂直後端設定值VBS及該垂直前端設定值VFS，不但能縮短產品調校時間且節省大量人力成本，故確實達成本發明的目的。 In summary, the present invention automatically detects the vertical back end region VBP and the vertical front end region set in the frame of the image signal from the host terminal 30 by the display driving module 42. The length of the VFP is compared with the preset vertical backend set value VBS and the vertical front end set value VFS, and the vertical backend set value VBS is instantly updated to coincide with the length of the vertical back end region VBP, and The vertical front end set value VFS is updated to coincide with the length of the vertical front end area VFP, so that the display panel 41 can maintain the normal display, so that in the production stage of the mobile device 3, that is, no engineering personnel are required for different types or different types of mobile devices 3 Manually adjusting the vertical rear end setting value VBS preset in the display driving module 42 and the vertical front end setting value VFS can not only shorten the product adjustment time but also save a lot of labor costs, so the object of the present invention is achieved.

惟以上所述者，僅為本發明的實施例而已，當不能以此限定本發明實施的範圍，凡是依本發明申請專利範圍及專利說明書內容所作的簡單的等效變化與修飾，皆仍屬本發明專利涵蓋的範圍內。 However, the above is only the embodiment of the present invention, and the scope of the invention is not limited thereto, and all the simple equivalent changes and modifications according to the scope of the patent application and the patent specification of the present invention are still Within the scope of the invention patent.

S1~S6‧‧‧步驟 S1~S6‧‧‧Steps

Claims (10)

一種顯示驅動方法，應用於一用以驅動一顯示面板的顯示驅動模組，該顯示驅動模組接收由一主機端的行動產業處理器介面(Mobile Industry Processor Interface，簡稱MIPI)之顯示器串列介面(Display Serial Interface，簡稱DSI)傳來的影像訊號，該影像訊號包含多個圖框，每一圖框包含依序排列的一垂直同步區、一垂直後端區、一顯示資料區及一垂直前端區；該方法包括：(A)該顯示驅動模組根據該影像訊號產生一垂直同步訊號，並根據該垂直同步訊號和預設的一垂直後端設定值及一垂直前端設定值，依序輸出每一圖框的該顯示資料區中的顯示資料至該顯示面板；(B)該顯示驅動模組偵測該影像訊號中的前N(N為整數且N≧2)個圖框，並計算該前N個圖框中每一個圖框的該垂直後端區的一第一時間長度及該垂直前端區的一第二時間長度；及(C)該顯示驅動模組判斷該等第一時間長度相同但與該垂直後端設定值不同，且該等第二時間長度相同但與該垂直前端設定值不同時，則以該第一時間長度更新該垂直後端設定值並以該第二時間長度更新該垂直前端設定值。 A display driving method is applied to a display driving module for driving a display panel, and the display driving module receives a display serial interface of a mobile industry processor interface (MIPI) of a host side ( The image signal transmitted by the Display Serial Interface (DSI), the image signal includes a plurality of frames, each frame includes a vertical sync area, a vertical back end area, a display data area and a vertical front end arranged in sequence. The method includes: (A) the display driving module generates a vertical synchronization signal according to the image signal, and sequentially outputs the vertical synchronization signal according to the vertical synchronization signal and a preset vertical backend setting value and a vertical front end setting value. Displaying data in the display data area of each frame to the display panel; (B) the display driving module detects the first N (N is an integer and N≧2) frames in the image signal, and calculates a first time length of the vertical rear end region of each of the first N frames and a second time length of the vertical front end region; and (C) the display driving module determining the first time If the degrees are the same but different from the vertical back end setting, and the second time lengths are the same but different from the vertical front end setting values, the vertical back end setting values are updated with the first time length and the second time The length updates the vertical front end setting. 如請求項1所述的顯示驅動方法，其中該垂直同步區是指從一代表垂直同步開始的垂直同步開始封包到一代表垂直同步結束的垂直同步結束封包之間的區間，且在步驟(A)中，該顯示驅動模組是根據收到相鄰兩個該垂直同步 開始封包的時間，計算得到該垂直同步訊號的頻率，並據以產生該垂直同步訊號。 The display driving method according to claim 1, wherein the vertical synchronization area refers to an interval between a vertical synchronization start packet starting from vertical synchronization and a vertical synchronization end packet representing end of vertical synchronization, and in step (A) The display driver module is based on receiving two adjacent vertical syncs The time at which the packet is started is calculated, and the frequency of the vertical sync signal is calculated, and the vertical sync signal is generated accordingly. 如請求項2所述的顯示驅動方法，其中該顯示資料區包括複數個線資料區，每一個線資料區包含依序排列的一水平同步區、一水平後端區、一像素資料區及一水平前端區，其中該水平同步區包含一代表水平同步開始的水平同步開始封包及一代表水平同步結束的水平同步結束封包；且在步驟(B)中，該垂直後端區是指從該垂直同步結束封包至該顯示資料區的該第一個線資料區的該水平同步結束封包的區間，且該顯示驅動模組是根據收到該垂直同步結束封包的時間及收到該顯示資料區的該第一個線資料區的該水平同步結束封包的時間，計算得到該第一時間長度；而該垂直前端區是指從該顯示資料區之後的第一個水平同步開始封包到下一個圖框的該垂直同步開始封包之前的區間，且該顯示驅動模組是根據收到該顯示資料區之後的第一個水平同步開始封包的時間及收到下一個圖框的該垂直同步開始封包的時間，計算得到該第二時間長度。 The display driving method of claim 2, wherein the display data area comprises a plurality of line data areas, each line data area comprising a horizontal synchronization area, a horizontal back end area, a pixel data area and a sequence a horizontal front end region, wherein the horizontal synchronization area includes a horizontal synchronization start packet representing a start of horizontal synchronization and a horizontal synchronization end packet representing a horizontal synchronization end; and in step (B), the vertical rear end region refers to the vertical The synchronization end packet is sent to the interval of the horizontal synchronization end packet of the first line data area of the display data area, and the display driving module is based on receiving the vertical synchronization end packet and receiving the display data area. The horizontal synchronization end packet of the first line data area is calculated to obtain the first time length; and the vertical front end area refers to the first horizontal synchronization start packet after the display data area to the next frame. The vertical synchronization starts the interval before the packet, and the display driver module starts the packet according to the first horizontal synchronization after receiving the display data area. And the time when the vertical synchronization start packet of the next frame is received, and the second time length is calculated. 如請求項3所述的顯示驅動方法，在步驟(B)中，該顯示驅動模組根據收到相鄰兩個線資料區的該水平同步開始封包的時間，計算得到一水平同步訊號的頻率，並據以產生該水平同步訊號，且根據該水平同步訊號依序輸出該顯示資料區中的每一個線資料區中的該像素資料區中的像素資料至該顯示面板。 According to the display driving method of claim 3, in step (B), the display driving module calculates the frequency of a horizontal synchronization signal according to the time when the horizontal synchronization start packet is received in the adjacent two line data areas. And generating the horizontal synchronization signal, and sequentially outputting pixel data in the pixel data area in each of the line data areas in the display data area to the display panel according to the horizontal synchronization signal. 如請求項3所述的顯示驅動方法，在步驟(B)中，該顯示驅動模組根據該垂直同步訊號、該後端設定值及該前端設定值產生一資料致能訊號，並根據該資料致能訊號輸出該顯示資料區的顯示資料至該顯示面板。 The display driving method of claim 3, in the step (B), the display driving module generates a data enable signal according to the vertical synchronization signal, the backend setting value and the front end setting value, and according to the data The enable signal outputs the display data of the display data area to the display panel. 一種平面顯示器，用以顯示由一主機端的行動產業處理器介面(Mobile Industry Processor Interface，簡稱MIPI)之顯示器串列介面(Display Serial Interface，簡稱DSI)傳來的一影像訊號，該影像訊號包含多個圖框，每一圖框包含依序排列的一垂直同步區、一垂直後端區、一顯示資料區及一垂直前端區；且該平面顯示器包括：一顯示面板；及一顯示驅動模組，其與該顯示面板電連接，並根據該影像訊號產生一垂直同步訊號，且根據該垂直同步訊號和預設的一垂直後端設定值及一垂直前端設定值，依序輸出每一圖框的該顯示資料區中的顯示資料至該顯示面板；該顯示驅動模組還偵測該影像訊號中的前N個圖框，且計算該前N(N為整數且N≧2)個圖框中每一個圖框的該垂直後端區的一第一時間長度及該垂直前端區的一第二時間長度，並於判斷該等第一時間長度相同但與該垂直後端設定值不同，且該等第二時間長度相同但與該垂直前端設定值不同時，以該第一時間長度更新該垂直後端設定值並以該第二時間長度更新該垂直前端設定值。 A flat-panel display for displaying an image signal transmitted by a Display Industry Interface (DSI) of a mobile industry processor interface (MIPI) of a host computer, the image signal includes a plurality of video signals a frame, each frame includes a vertical sync area, a vertical back end area, a display data area and a vertical front end area arranged in sequence; and the flat display comprises: a display panel; and a display driving module The device is electrically connected to the display panel, and generates a vertical synchronization signal according to the image signal, and sequentially outputs each frame according to the vertical synchronization signal and a preset vertical rear end setting value and a vertical front end setting value. Displaying data in the display data area to the display panel; the display driving module further detecting the first N frames in the image signal, and calculating the front N (N is an integer and N≧2) frames a first time length of the vertical rear end region of each of the frames and a second time length of the vertical front end region, and determining that the first time lengths are the same but after the vertical Setting different values, and the second time the same length, but these are different, the first length of time to update the setting value of the vertical rear end of the front end of the vertical length of the set value and a second time to update the set value of the vertical front end. 如請求項6所述的平面顯示器，其中該顯示驅動模組包括一用以接收該影像訊號的傳輸介面，一與該傳輸介面電連 接的解碼器，一與該解碼器電連接的時序控制器以及一與該時序控制器及該顯示面板電連接的源極驅動器，該解碼器從該傳輸介面傳來的每一圖框中取出該垂直同步區、該垂直後端區、該顯示資料區及該垂直前端區，並將該顯示資料區傳送給該時序控制器；其中該垂直同步區是指從一代表垂直同步開始的垂直同步開始封包到一代表垂直同步結束的垂直同步結束封包之前的區間，該解碼器根據收到相鄰兩個該垂直同步開始封包的時間，計算得到該垂直同步訊號的頻率，並據以產生該垂直同步訊號，且該時序控制器根據該垂直同步訊號和該垂直後端設定值及該垂直前端設定值產生一資料致能訊號，並根據該資料致能訊號控制該源極驅動器輸出該顯示資料區中的顯示資料至該顯示面板。 The flat panel display of claim 6, wherein the display driving module includes a transmission interface for receiving the image signal, and is electrically connected to the transmission interface. Connected decoder, a timing controller electrically connected to the decoder, and a source driver electrically connected to the timing controller and the display panel, the decoder is taken out from each frame transmitted from the transmission interface The vertical synchronization area, the vertical back end area, the display data area and the vertical front end area, and the display data area is transmitted to the timing controller; wherein the vertical synchronization area refers to vertical synchronization starting from a vertical synchronization Starting from the interval before the vertical synchronization end packet representing the end of the vertical synchronization, the decoder calculates the frequency of the vertical synchronization signal according to the time when the adjacent two vertical synchronization start packets are received, and generates the vertical Synchronizing the signal, and the timing controller generates a data enable signal according to the vertical sync signal and the vertical back end set value and the vertical front end set value, and controls the source driver to output the display data area according to the data enable signal Display data in the display panel. 如請求項7所述的平面顯示器，其中該解碼器計算該前N個圖框的該垂直後端區的該第一時間長度及該垂直前端區的該第二時間長度，並將該垂直同步訊號、該等第一時間長度及該等第二時間長度傳送給該時序控制器，該時序控制器判斷該等第一時間長度相同但與該垂直後端設定值不同，且該等第二時間長度相同但與該垂直前端設定值不同時，則以該第一時間長度更新該垂直後端設定值並以該第二時間長度更新該垂直前端設定值。 The flat panel display of claim 7, wherein the decoder calculates the first time length of the vertical back end region of the first N frames and the second time length of the vertical front end region, and synchronizes the vertical The signal, the first length of time, and the second length of time are transmitted to the timing controller, the timing controller determining that the first time lengths are the same but different from the vertical back end setting values, and the second time When the length is the same but different from the vertical front end setting value, the vertical rear end setting value is updated with the first time length and the vertical front end setting value is updated with the second time length. 如請求項7所述的平面顯示器，其中該顯示資料區包括複數個線資料區，每一個線資料區包含依序排列的一水平同步區、一水平後端區、一像素資料區及一水平前端區，其 中該水平同步區包含一代表水平同步開始的水平同步開始封包及一代表水平同步結束的水平同步結束封包；該垂直後端區是指從該垂直同步結束封包至該顯示資料區的該第一個線資料區的該水平同步結束封包的區間，且該解碼器是根據收到該垂直同步結束封包的時間及收到該顯示資料區的該第一個線資料區的該水平同步結束封包的時間，計算得到該第一時間長度；而該垂直前端區是指從該顯示資料區之後的第一個水平同步開始封包到下一個圖框的該垂直同步開始封包之前的區間，且該解碼器是根據收到該顯示資料區之後的第一個水平同步開始封包的時間及收到下一個圖框的該垂直同步開始封包的時間，計算得到該第二時間長度。 The flat panel display of claim 7, wherein the display data area comprises a plurality of line data areas, each line data area comprising a horizontal synchronization area, a horizontal back end area, a pixel data area and a level arranged in sequence Front end area The horizontal synchronization area includes a horizontal synchronization start packet representing the start of horizontal synchronization and a horizontal synchronization end packet representing the end of horizontal synchronization; the vertical back end region refers to the first packet from the vertical synchronization end packet to the display data area The horizontal synchronization end of the packet data area ends the packet interval, and the decoder ends the packet according to the time when the vertical synchronization end packet is received and the first line data area of the display data area is received. Time, the first time length is calculated; and the vertical front end area refers to an interval from the first horizontal synchronization start packet after the display data area to the vertical synchronization start packet of the next frame, and the decoder The second time length is calculated according to the time when the first horizontal synchronization start packet is received after receiving the display data area and the time when the vertical synchronization start packet is received in the next frame. 如請求項9所述的平面顯示器，其中該解碼器根據收到相鄰兩個線資料區的該水平同步開始封包的時間，計算得到一水平同步訊號的頻率，且據以產生該水平同步訊號並提供給該時序控制器，且該時序控制器根據該水平同步訊號控制該源極驅動器依序輸出該顯示資料區中的每一個線資料區中的該像素資料區中的像素資料至該顯示面板，並根據該水平同步訊號控制內建在該顯示面板上的一閘極驅動器驅動該顯示面板。 The flat panel display according to claim 9, wherein the decoder calculates a frequency of a horizontal synchronization signal according to the time when the horizontal synchronization start packet is received in the adjacent two line data areas, and the horizontal synchronization signal is generated accordingly. And the timing controller is configured to control, according to the horizontal synchronization signal, the source driver to sequentially output pixel data in the pixel data area in each line data area of the display data area to the display. a panel, and controlling the display panel by a gate driver built in the display panel according to the horizontal synchronization signal.
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TW201142810A (en) * 2009-12-30 2011-12-01 Intel Corp Techniques for aligning frame data
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TW201142810A (en) * 2009-12-30 2011-12-01 Intel Corp Techniques for aligning frame data
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