TWI657423B - Timing controller and temperature management method for display panel driver - Google Patents
Timing controller and temperature management method for display panel driver Download PDFInfo
- Publication number
- TWI657423B TWI657423B TW107113758A TW107113758A TWI657423B TW I657423 B TWI657423 B TW I657423B TW 107113758 A TW107113758 A TW 107113758A TW 107113758 A TW107113758 A TW 107113758A TW I657423 B TWI657423 B TW I657423B
- Authority
- TW
- Taiwan
- Prior art keywords
- pixel
- sub
- grayscale value
- timing controller
- subpixel
- Prior art date
Links
Landscapes
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
Abstract
一種時序控制器與顯示面板驅動器的溫度管理方法。顯示面板驅動器的溫度管理方法包括偵測步驟以及灰階值調整步驟。時序控制器偵測原顯示畫面是否具有特定畫素圖案，特定畫素圖案包括位於顯示面板的同一資料線上且時序上相鄰的第一子畫素與第二子畫素。第一子畫素的灰階值具有最高灰階值，且第二子畫素的灰階值具有最低灰階值。當時序控制器偵測到原顯示畫面具有特定畫素圖案時，時序控制器對原顯示畫面進行灰階調整操作，藉此避免顯示面板驅動器發生過溫事件。A temperature management method for a timing controller and a display panel driver. The temperature management method of the display panel driver includes a detecting step and a grayscale value adjusting step. The timing controller detects whether the original display picture has a specific pixel pattern, and the specific pixel pattern includes the first sub-pixel and the second sub-pixel adjacent to each other on the same data line of the display panel. The grayscale value of the first subpixel has the highest grayscale value, and the grayscale value of the second subpixel has the lowest grayscale value. When the timing controller detects that the original display picture has a specific pixel pattern, the timing controller performs a grayscale adjustment operation on the original display screen, thereby avoiding an overtemperature event of the display panel driver.
Description
本發明是有關於一種溫度管理方法，特別是關於一種藉由時序控制器執行顯示面板驅動器的溫度管理的方法。The present invention relates to a temperature management method, and more particularly to a method of performing temperature management of a display panel driver by a timing controller.
一般而言，當顯示裝置播放影像畫面時，由於連接於同一條資料線上的多個子畫素往往需要被寫入不同的灰階，所以顯示裝置的顯示面板驅動器（例如源極驅動器）往往需要在所述同一條資料線上不斷改變驅動電壓（畫素電壓）的準位。然而，在所述同一條資料線上的電壓擺幅（voltage swing）越大，意味著顯示面板驅動器需要耗費更多功率來驅動所述同一條資料線。顯示面板驅動器耗費的功率越多，通常會造成顯示面板驅動器的溫度的升高。當顯示面板驅動器的溫度過高時，高溫可能會造成內部電路的損壞，進而導致顯示裝置無法正常運作。Generally, when a display device plays an image frame, since a plurality of sub-pixels connected to the same data line often need to be written in different gray levels, a display panel driver (for example, a source driver) of the display device often needs to be The same data line constantly changes the level of the driving voltage (pixel voltage). However, the greater the voltage swing on the same data line, the more the display panel driver needs to consume more power to drive the same data line. The more power the display panel driver consumes, the higher the temperature of the display panel driver. When the temperature of the display panel driver is too high, high temperature may cause damage to the internal circuit, which may cause the display device to malfunction.
有鑑於此，有必要提供一種溫度管理方法，以降低顯示面板驅動器的溫度。In view of this, it is necessary to provide a temperature management method to lower the temperature of the display panel driver.
本發明提供一種時序控制器與顯示面板驅動器的溫度管理方法，可避免顯示面板驅動器發生過溫事件。The invention provides a temperature management method for a timing controller and a display panel driver, which can avoid an over-temperature event of the display panel driver.
本發明的實施例提供一種顯示面板驅動器的溫度管理方法。所述顯示面板驅動器的溫度管理方法包括偵測步驟以及灰階值調整步驟。所述偵測步驟是由時序控制器偵測原顯示畫面是否具有特定畫素圖案。其中，特定畫素圖案包括位於顯示面板的同一資料線上且時序上相鄰的第一子畫素與第二子畫素，第一子畫素的灰階值具有最高灰階值，且第二子畫素的灰階值具有最低灰階值。所述灰階值調整步驟是在時序控制器偵測到原顯示畫面具有特定畫素圖案時，由時序控制器對原顯示畫面進行灰階調整操作以獲得經調整顯示畫面，並將經調整顯示畫面提供給顯示面板驅動器，以避免顯示面板驅動器發生過溫事件。所述灰階調整操作包括：調小第一子畫素的灰階值與調大第二子畫素的灰階值，或是調小第一子畫素的灰階值至一低灰階值。Embodiments of the present invention provide a temperature management method for a display panel driver. The temperature management method of the display panel driver includes a detecting step and a grayscale value adjusting step. The detecting step is performed by the timing controller to detect whether the original display picture has a specific pixel pattern. The specific pixel pattern includes a first sub-pixel and a second sub-pixel that are temporally adjacent to each other on the same data line of the display panel, and the grayscale value of the first sub-pixel has the highest grayscale value, and the second The grayscale value of the subpixel has the lowest grayscale value. The grayscale value adjustment step is that when the timing controller detects that the original display screen has a specific pixel pattern, the timing controller performs a grayscale adjustment operation on the original display screen to obtain an adjusted display screen, and the adjusted display screen is displayed. The screen is provided to the display panel driver to avoid over-temperature events on the display panel driver. The grayscale adjustment operation includes: adjusting a grayscale value of the first subpixel and a grayscale value of the second subpixel, or reducing a grayscale value of the first subpixel to a low grayscale value.
本發明的實施例提供一種時序控制器，用於控制顯示面板驅動器。所述時序控制器包括偵測電路以及控制電路。偵測電路用於偵測原顯示畫面是否具有特定畫素圖案，其中特定畫素圖案包括位於顯示面板的同一資料線上且時序上相鄰的第一子畫素與第二子畫素，第一子畫素的灰階值具有最高灰階值且第二子畫素的灰階值具有最低灰階值。控制電路耦接至偵測電路。所述控制電路用於決定是否對原顯示畫面進行灰階調整操作以獲得經調整顯示畫面，並將經調整顯示畫面提供給顯示面板驅動器，以避免顯示面板驅動器發生過溫事件。其中，當時序控制器偵測到原顯示畫面具有特定畫素圖案時，時序控制器進行灰階調整操作。所述灰階調整操作包括：調小第一子畫素的灰階值與調大第二子畫素的灰階值，或是調小第一子畫素的灰階值至一低灰階值。Embodiments of the present invention provide a timing controller for controlling a display panel driver. The timing controller includes a detection circuit and a control circuit. The detecting circuit is configured to detect whether the original display picture has a specific pixel pattern, wherein the specific pixel pattern comprises a first sub-pixel and a second sub-pixel adjacent to each other on the same data line of the display panel The grayscale value of the subpixel has the highest grayscale value and the grayscale value of the second subpixel has the lowest grayscale value. The control circuit is coupled to the detection circuit. The control circuit is configured to determine whether to perform a grayscale adjustment operation on the original display screen to obtain an adjusted display screen, and provide the adjusted display screen to the display panel driver to avoid an overtemperature event of the display panel driver. Wherein, when the timing controller detects that the original display picture has a specific pixel pattern, the timing controller performs a grayscale adjustment operation. The grayscale adjustment operation includes: adjusting a grayscale value of the first subpixel and a grayscale value of the second subpixel, or reducing a grayscale value of the first subpixel to a low grayscale value.
本發明的實施例提供一種顯示面板驅動器的溫度管理方法。所述顯示面板驅動器的溫度管理方法包括偵測步驟以及時序調整步驟。所述偵測步驟是由時序控制器偵測原顯示畫面是否具有特定畫素圖案。其中，特定畫素圖案包括位於顯示面板的同一資料線上且時序上相鄰的第一子畫素與第二子畫素，第一子畫素的灰階值具有最高灰階值，且第二子畫素的灰階值具有最低灰階值。所述時序調整步驟是在時序控制器偵測到原顯示畫面具有特定畫素圖案時，由時序控制器調整對第一子畫素與第二子畫素載入灰階電壓的載入順序，以避免顯示面板驅動器發生過溫事件。Embodiments of the present invention provide a temperature management method for a display panel driver. The temperature management method of the display panel driver includes a detecting step and a timing adjusting step. The detecting step is performed by the timing controller to detect whether the original display picture has a specific pixel pattern. The specific pixel pattern includes a first sub-pixel and a second sub-pixel that are temporally adjacent to each other on the same data line of the display panel, and the grayscale value of the first sub-pixel has the highest grayscale value, and the second The grayscale value of the subpixel has the lowest grayscale value. The timing adjustment step is that when the timing controller detects that the original display picture has a specific pixel pattern, the timing controller adjusts the loading order of the first sub-pixel and the second sub-pixel loading gray scale voltage. To avoid over-temperature events in the display panel driver.
本發明的實施例提供一種時序控制器，用於控制顯示面板驅動器。所述時序控制器包括偵測電路以及控制電路。偵測電路用於偵測原顯示畫面是否具有特定畫素圖案，其中特定畫素圖案包括位於顯示面板的同一資料線上且時序上相鄰的第一子畫素與第二子畫素，第一子畫素的灰階值具有最高灰階值且第二子畫素的灰階值具有最低灰階值。控制電路耦接至偵測電路。所述控制電路用於決定是否調整對第一子畫素與第二子畫素載入灰階電壓的載入順序，以避免顯示面板驅動器發生過溫事件。其中，當時序控制器偵測到原顯示畫面具有特定畫素圖案時，時序控制器調整特定畫素圖案的載入順序。Embodiments of the present invention provide a timing controller for controlling a display panel driver. The timing controller includes a detection circuit and a control circuit. The detecting circuit is configured to detect whether the original display picture has a specific pixel pattern, wherein the specific pixel pattern comprises a first sub-pixel and a second sub-pixel adjacent to each other on the same data line of the display panel The grayscale value of the subpixel has the highest grayscale value and the grayscale value of the second subpixel has the lowest grayscale value. The control circuit is coupled to the detection circuit. The control circuit is configured to determine whether to adjust a loading order of the first sub-pixel and the second sub-pixel loading gray scale voltage to avoid an over-temperature event of the display panel driver. Wherein, when the timing controller detects that the original display has a specific pixel pattern, the timing controller adjusts the loading order of the specific pixel pattern.
基於上述，本發明諸實施例所述的時序控制器與顯示面板驅動器的溫度管理方法，可透過監控顯示面板上的特定畫素圖案，並適時調整所述特定畫素圖案中各子畫素的灰階值或調整對各子畫素載入灰階電壓的載入順序，以避免顯示面板驅動器的工作溫度升高。因此，所述溫度管理方法可有效避免顯示面板驅動器發生過溫事件。Based on the above, the temperature management method of the timing controller and the display panel driver according to the embodiments of the present invention can monitor a specific pixel pattern on the display panel and adjust the sub-pixels in the specific pixel pattern in time. The grayscale value or adjustment loads the loading order of the grayscale voltages for each subpixel to avoid an increase in the operating temperature of the display panel driver. Therefore, the temperature management method can effectively avoid an over-temperature event of the display panel driver.
為讓本發明的上述特徵和優點能更明顯易懂，下文特舉實施例，並配合所附圖式作詳細說明如下。The above described features and advantages of the invention will be apparent from the following description.
在本案說明書全文（包括申請專利範圍）中所使用的「耦接（或連接）」一詞可指任何直接或間接的連接手段。舉例而言，若文中描述第一裝置耦接（或連接）於第二裝置，則應該被解釋成該第一裝置可以直接連接於該第二裝置，或者該第一裝置可以透過其他裝置或某種連接手段而間接地連接至該第二裝置。另外，凡可能之處，在圖式及實施方式中使用相同標號的元件/構件/步驟代表相同或類似部分。不同實施例中使用相同標號或使用相同用語的元件/構件/步驟可以相互參照相關說明。The term "coupled (or connected)" as used throughout the specification (including the scope of the claims) may be used in any direct or indirect connection. For example, if the first device is described as being coupled (or connected) to the second device, it should be construed that the first device can be directly connected to the second device, or the first device can be A connection means is indirectly connected to the second device. In addition, wherever possible, the elements and/ Elements/components/steps that use the same reference numbers or use the same terms in different embodiments may refer to the related description.
圖1是依照本發明的一實施例的執行溫度管理方法的電路方塊示意圖。如圖1所示，時序控制器11可控制顯示面板驅動器12輸出多個畫素電壓至顯示面板13。依據顯示面板驅動器12的驅動操作，顯示面板13可以顯示影像。依照設計需求，顯示面板13可以是液晶顯示（Liquid Crystal Display，LCD）面板、有機發光二極體（Organic Light Emitting Diode，OLED）顯示面板、電泳顯示（Electro-Phoretic Display，EPD）面板或電漿顯示面板（Plasma Display Panel，PDP）。1 is a block diagram of a circuit for performing a temperature management method in accordance with an embodiment of the present invention. As shown in FIG. 1, the timing controller 11 can control the display panel driver 12 to output a plurality of pixel voltages to the display panel 13. The display panel 13 can display an image in accordance with the driving operation of the display panel driver 12. According to the design requirements, the display panel 13 can be a liquid crystal display (LCD) panel, an organic light emitting diode (OLED) display panel, an electro-optical display (EPD) panel, or a plasma. Display Panel (PDP).
時序控制器11包括偵測電路111以及控制電路112。偵測電路111可偵測顯示面板13的原顯示畫面（original display frame）14是否具有特定畫素圖案（specific pixel pattern）。控制電路112耦接至偵測電路111。控制電路112可決定是否對原顯示畫面14進行灰階調整操作，以獲得經調整顯示畫面15。控制電路112可將經調整顯示畫面15提供給顯示面板驅動器12，以避免顯示面板驅動器12發生過溫事件。當控制電路112決定不進行灰階調整操作時，控制電路112可將原顯示畫面14提供給顯示面板驅動器12作為經調整顯示畫面15。The timing controller 11 includes a detection circuit 111 and a control circuit 112. The detecting circuit 111 can detect whether the original display frame 14 of the display panel 13 has a specific pixel pattern. The control circuit 112 is coupled to the detection circuit 111. The control circuit 112 may determine whether to perform a grayscale adjustment operation on the original display screen 14 to obtain an adjusted display screen 15. Control circuit 112 can provide adjusted display 15 to display panel driver 12 to avoid over-temperature events in display panel driver 12. When the control circuit 112 decides not to perform the grayscale adjustment operation, the control circuit 112 can supply the original display screen 14 to the display panel driver 12 as the adjusted display screen 15.
舉例來說，圖2是說明圖1的子畫素配置架構的電路方塊示意圖。如圖2所示，顯示面板13可包括多個子畫素（例如圖2所示子畫素131～139）形成的畫素陣列。於圖2所示實施例中，顯示面板驅動器12可包括源極驅動器121與閘極驅動器122。時序控制器11耦接至源極驅動器121與閘極驅動器122。閘極驅動器122在時序控制器11的控制下，可依序提供閘極驅動信號（掃描信號）至閘極線G1、G2、G3、…、Gm，以開啟相對應的子畫素的電晶體（未圖式）。基於閘極驅動器122所輸出閘極驅動信號的時序，源極驅動器121適時提供對應的資料驅動信號至資料線D1、D2、D3、…、Dn，以將相對應的子畫素充電至適當的畫素電壓。因此，顯示面板13的子畫素131～139可藉由畫素電壓的調整而顯示出不同的灰階值。For example, FIG. 2 is a circuit block diagram illustrating the sub-pixel configuration architecture of FIG. 1. As shown in FIG. 2, the display panel 13 may include a pixel array formed by a plurality of sub-pixels (for example, the sub-pixels 131 to 139 shown in FIG. 2). In the embodiment shown in FIG. 2, the display panel driver 12 can include a source driver 121 and a gate driver 122. The timing controller 11 is coupled to the source driver 121 and the gate driver 122. The gate driver 122 sequentially supplies a gate driving signal (scanning signal) to the gate lines G1, G2, G3, . . . , Gm under the control of the timing controller 11 to turn on the corresponding sub-pixel transistor. (not shown). Based on the timing of the gate driving signals output by the gate driver 122, the source driver 121 timely supplies corresponding data driving signals to the data lines D1, D2, D3, . . . , Dn to charge the corresponding sub-pixels to the appropriate ones. Pixel voltage. Therefore, the sub-pixels 131 to 139 of the display panel 13 can display different gray scale values by adjusting the pixel voltage.
時序控制器11可監控顯示面板13的原顯示畫面14是否具有特定畫素圖案。所述特定畫素圖案可包括位於顯示面板13的同一資料線上且時序上相鄰的第一子畫素與第二子畫素，第一子畫素的灰階值具有最高灰階值，且第二子畫素的灰階值具有最低灰階值。以圖2所示資料線D1為例，因為子畫素131與子畫素132連接於同一條資料線D1，且子畫素131與子畫素132在驅動時序上相鄰，因此子畫素131可以視為所述第一子畫素，而子畫素132可以視為所述第二子畫素。或者，子畫素132可以視為所述第一子畫素，而子畫素131可以視為所述第二子畫素。在極端的畫素圖案範例中，圖2所示顯示面板13的第奇數條閘極線所連接的所有畫素可以視為所述第一子畫素，而第偶數條閘極線所連接的所有畫素可以視為所述第二子畫素。又或者，第偶數條閘極線所連接的所有畫素可以視為所述第一子畫素，而第奇數條閘極線所連接的所有畫素可以視為所述第二子畫素。在原顯示畫面14中，當所述第一子畫素的灰階值為最高灰階值，而所述第二子畫素的灰階值為最低灰階值時，原顯示畫面14可以被判定為具有所述特定畫素圖案。The timing controller 11 can monitor whether the original display screen 14 of the display panel 13 has a specific pixel pattern. The specific pixel pattern may include a first sub-pixel and a second sub-pixel that are temporally adjacent to each other on the same data line of the display panel 13, and the grayscale value of the first sub-pixel has the highest grayscale value, and The grayscale value of the second subpixel has the lowest grayscale value. Taking the data line D1 shown in FIG. 2 as an example, since the sub-pixel 131 and the sub-pixel 132 are connected to the same data line D1, and the sub-pixel 131 and the sub-pixel 132 are adjacent in the driving timing, the sub-pixel 131 may be regarded as the first sub-pixel, and sub-pixel 132 may be regarded as the second sub-pixel. Alternatively, the sub-pixel 132 may be regarded as the first sub-pixel, and the sub-pixel 131 may be regarded as the second sub-pixel. In the extreme pixel pattern example, all the pixels connected to the odd-numbered gate lines of the display panel 13 shown in FIG. 2 can be regarded as the first sub-pixel, and the even-numbered gate lines are connected. All pixels can be considered as the second sub-pixel. Alternatively, all pixels connected to the even-numbered gate lines may be regarded as the first sub-pixel, and all pixels connected to the odd-numbered gate lines may be regarded as the second sub-pixel. In the original display screen 14, when the grayscale value of the first subpixel is the highest grayscale value, and the grayscale value of the second subpixel is the lowest grayscale value, the original display screen 14 can be determined. To have the specific pixel pattern.
當時序控制器11的偵測電路111偵測到原顯示畫面14具有所述特定畫素圖案時，時序控制器11的控制電路112將進行灰階調整操作，以獲得經調整顯示畫面15。所述灰階調整操作包括第一策略以及/或是第二策略。控制電路112可以採用第一策略與第二策略其中一個或全部，來調整具有所述特定畫素圖案的原顯示畫面14。所述第一策略為：調小所述第一子畫素的灰階值與調大所述第二子畫素的灰階值。所述第二策略為：調小所述第一子畫素的灰階值至某一個低灰階值。所述低灰階值可以視設計需求來決定。例如，所述低灰階值可以是灰階值0～10中的一個灰階值。在另一些實施例中，所述低灰階值可以是灰階值230～250中的一個灰階值。本實施例將假設所述低灰階值為240。When the detecting circuit 111 of the timing controller 11 detects that the original display picture 14 has the specific pixel pattern, the control circuit 112 of the timing controller 11 performs a grayscale adjustment operation to obtain the adjusted display screen 15. The grayscale adjustment operation includes a first policy and/or a second policy. Control circuitry 112 may employ one or both of the first strategy and the second strategy to adjust the original display 14 having the particular pixel pattern. The first strategy is: reducing a grayscale value of the first subpixel and increasing a grayscale value of the second subpixel. The second strategy is: reducing the grayscale value of the first subpixel to a certain low grayscale value. The low grayscale value can be determined based on design requirements. For example, the low grayscale value may be one of the grayscale values 0-10. In other embodiments, the low grayscale value may be one of the grayscale values 230-250. This embodiment will assume that the low gray level value is 240.
在此說明所述第一策略的實施範例。以資料線D1為例，假設子畫素131的灰階值為最高灰階值（例如255），而子畫素132的灰階值為最低灰階值（例如0）。控制電路112可採用所述第一策略而以相同步階量來調小子畫素131的灰階值與調大子畫素132的灰階值。所述步階量可以視設計需求來決定。控制電路112可以一次性調整子畫素的灰階值，例如將子畫素131的灰階值由255降低至第一目標灰階值（例如240），以及將子畫素132的灰階值由0升高至第二目標灰階值（例如15）。控制電路112亦可以在多個畫面期間多次性調整（漸變）子畫素的灰階值，例如在不同畫面期間將子畫素131的灰階值由255逐步降低至250、245、240，以及在不同畫面期間將子畫素132的灰階值由0逐步升高至5、10、15。An example of implementation of the first strategy is described herein. Taking the data line D1 as an example, it is assumed that the grayscale value of the subpixel 131 is the highest grayscale value (for example, 255), and the grayscale value of the subpixel 132 is the lowest grayscale value (for example, 0). The control circuit 112 may use the first strategy to adjust the grayscale value of the sub-pixel 131 and the grayscale value of the large sub-pixel 132 by the phase synchronization step. The amount of steps can be determined depending on design requirements. The control circuit 112 can adjust the grayscale value of the subpixels at one time, for example, reduce the grayscale value of the subpixel 131 from 255 to the first target grayscale value (for example, 240), and the grayscale value of the subpixel 132. Raise from 0 to a second target grayscale value (eg, 15). The control circuit 112 can also adjust (gradient) the grayscale value of the sub-pixels multiple times during multiple screens, for example, gradually reduce the grayscale value of the sub-pixel 131 from 255 to 250, 245, 240 during different screens. And the grayscale value of the sub-pixel 132 is gradually increased from 0 to 5, 10, 15 during different pictures.
在此說明所述第二策略的實施範例。時序控制器11的控制電路112可以將原顯示畫面14劃分為多個區塊，其中這些區塊的每一個具有多個畫素。時序控制器11的控制電路112可以將這些區塊的每一個區塊的一個子畫素的灰階值調小至某一個低灰階值。舉例來說，在同一個畫面期間中，控制電路112可以將每一個區塊中的一個子畫素的灰階值從最高灰階值（例如255）改為低灰階值（例如240），但是不變動每一個區塊中的其他子畫素的灰階值。以圖2所示顯示面板13為例，假設子畫素131～139被劃分為同一個區塊，其中在原顯示畫面14中，子畫素131、134、137、133、136、139的灰階值為最高灰階值（例如255），而子畫素132、135、138的灰階值為最低灰階值（例如0）。時序控制器11的控制電路112可以從子畫素131～139中隨意選擇一個具有最高灰階值的子畫素，例如選擇子畫素131。在同一個畫面期間中，控制電路112可以將子畫素131的灰階值由255降低至240，但是不變動同一個區塊中的其他子畫素132～139的灰階值，亦即使子畫素134、137、133、136、139的灰階值保持為原灰階值255，而使子畫素132、135、138的灰階值保持為原灰階值0。以此類推，在下一個畫面期間中，控制電路112可以從子畫素131～139中隨意選擇另一個具有最高灰階值的子畫素，例如選擇子畫素136。然後將經選擇子畫素136的灰階值由255降低至240，但是不變動同一個區塊中的其他子畫素的灰階值，亦即使子畫素131、134、137、133、139的灰階值保持為原灰階值255，而使子畫素132、135、138的灰階值保持為原灰階值0。An example of implementation of the second strategy is described herein. The control circuit 112 of the timing controller 11 can divide the original display picture 14 into a plurality of blocks, each of which has a plurality of pixels. The control circuit 112 of the timing controller 11 can reduce the grayscale value of one sub-pixel of each of the blocks to a certain low grayscale value. For example, during the same picture period, the control circuit 112 may change the grayscale value of one sub-pixel in each block from the highest grayscale value (eg, 255) to a low grayscale value (eg, 240), However, the grayscale values of other subpixels in each block are not changed. Taking the display panel 13 shown in FIG. 2 as an example, it is assumed that the sub-pixels 131 to 139 are divided into the same block, wherein the gray scales of the sub-pixels 131, 134, 137, 133, 136, and 139 in the original display screen 14 The value is the highest grayscale value (eg, 255), and the grayscale values of the subpixels 132, 135, 138 are the lowest grayscale value (eg, 0). The control circuit 112 of the timing controller 11 can arbitrarily select a sub-pixel having the highest grayscale value from the sub-pixels 131 to 139, for example, select the sub-pixel 131. During the same picture period, the control circuit 112 can reduce the grayscale value of the sub-pixel 131 from 255 to 240, but does not change the grayscale values of the other sub-pixels 132-139 in the same block, even if the sub-pixel The grayscale values of the pixels 134, 137, 133, 136, and 139 are maintained at the original grayscale value of 255, and the grayscale values of the subpixels 132, 135, and 138 are maintained at the original grayscale value of zero. By analogy, during the next picture period, the control circuit 112 can arbitrarily select another sub-pixel having the highest gray-scale value from the sub-pixels 131-139, for example, selecting the sub-pixel 136. The grayscale value of the selected subpixel 136 is then reduced from 255 to 240, but does not change the grayscale values of other subpixels in the same block, even if the subpixels 131, 134, 137, 133, 139 The grayscale value is maintained at the original grayscale value of 255, and the grayscale values of the subpixels 132, 135, and 138 are maintained at the original grayscale value of zero.
圖3是依照本發明的一實施例的顯示面板驅動器的溫度管理方法的流程示意圖。請參照圖1與圖3，於步驟S10（偵測步驟）中，時序控制器11可藉由偵測電路111對顯示面板13的原顯示畫面14進行偵測，以便進入步驟S20來判斷原顯示畫面14是否存在特定畫素圖案。所述特定畫素圖案包括位於顯示面板13的同一資料線上且時序上相鄰的第一子畫素與第二子畫素，所述第一子畫素的灰階值具有最高灰階值，且所述第二子畫素的灰階值具有最低灰階值。步驟S10與步驟S20的實施細節可以參照圖1與圖2所示實施例中關於偵測電路111的相關說明來類推，故不再贅述。3 is a flow chart showing a method of temperature management of a display panel driver in accordance with an embodiment of the present invention. Referring to FIG. 1 and FIG. 3, in step S10 (detection step), the timing controller 11 can detect the original display screen 14 of the display panel 13 by the detecting circuit 111, so as to proceed to step S20 to determine the original display. Whether the picture 14 has a specific pixel pattern exists. The specific pixel pattern includes a first sub-pixel and a second sub-pixel that are temporally adjacent to each other on the same data line of the display panel 13, and the grayscale value of the first sub-pixel has the highest grayscale value. And the grayscale value of the second subpixel has the lowest grayscale value. The implementation details of the step S10 and the step S20 can be referred to the related description of the detecting circuit 111 in the embodiment shown in FIG. 1 and FIG. 2, and therefore will not be described again.
當時序控制器11偵測到原顯示畫面14不具有所述特定畫素圖案時（步驟S20的判斷結果為「否」），時序控制器11可以將原顯示畫面14作為經調整顯示畫面15提供給顯示面板驅動器12。當時序控制器11偵測到原顯示畫面14具有所述特定畫素圖案時（步驟S20的判斷結果為「是」），時序控制器11將對原顯示畫面14進行灰階調整操作（步驟S30，灰階值調整步驟），以便獲得經調整顯示畫面15，並將經調整顯示畫面15提供給顯示面板驅動器12，以避免顯示面板驅動器12發生過溫事件。步驟S30的實施細節可以參照圖1與圖2所示實施例中關於控制電路112的相關說明來類推，故不再贅述。When the timing controller 11 detects that the original display screen 14 does not have the specific pixel pattern (NO in step S20), the timing controller 11 can provide the original display screen 14 as the adjusted display screen 15. The display panel driver 12 is provided. When the timing controller 11 detects that the original display screen 14 has the specific pixel pattern (YES in step S20), the timing controller 11 performs a grayscale adjustment operation on the original display screen 14 (step S30). The grayscale value adjustment step) is to obtain the adjusted display screen 15 and provide the adjusted display screen 15 to the display panel driver 12 to avoid an overtemperature event of the display panel driver 12. The implementation details of step S30 can be analogized with reference to the related description of the control circuit 112 in the embodiment shown in FIG. 1 and FIG. 2, and therefore will not be described again.
於另一實施態樣中，時序控制器11的偵測電路111除了偵測所述特定畫素圖案是否呈現於原顯示畫面14，更進一步偵測特定畫素圖案所顯示的顏色樣式，而時序控制器11的控制電路112則可依據所述顏色樣式來選擇灰階調整操作的策略。In another embodiment, the detecting circuit 111 of the timing controller 11 detects the color pattern displayed by the specific pixel pattern in addition to detecting whether the specific pixel pattern is presented on the original display screen 14 and timing. The control circuit 112 of the controller 11 can then select a strategy for the grayscale adjustment operation in accordance with the color pattern.
舉例來說，圖4A是依照本發明的另一實施例說明圖1所示顯示面板13（在圖4A中標示為1300）的子畫素配置架構的示意圖。圖4B-4C是依照本發明的一實施例說明灰階調整策略的示意圖。為求圖式簡潔，圖4A的顯示面板1300僅繪示出部分的閘極線G1～G3與部分的資料線D1～D7。顯示面板1300包括以陣列方式排列的多個紅色子畫素R、多個綠色子畫素G與多個藍色子畫素B。閘極線G1～G3分別連接有6個子畫素，且這6個子畫素是依照紅色子畫素R、綠色子畫素G、藍色子畫素B的順序排列。於圖4A中，標示於各子畫素的正負符號分別表示正極性與負極性的驅動電壓。以液晶顯示面板而言，若持續將相同極性（polarity）的電壓施加於畫素電極，液晶分子可能會發生極化的現象，進而造成顯示畫面的影像閃爍或變暗。因此，液晶顯示面板通常會週期性地改變驅動電壓的極性（如圖4A中的正負符號所示），以維持顯示品質。For example, FIG. 4A is a schematic diagram illustrating a sub-pixel configuration architecture of the display panel 13 (labeled 1300 in FIG. 4A) of FIG. 1 in accordance with another embodiment of the present invention. 4B-4C are schematic diagrams illustrating a grayscale adjustment strategy in accordance with an embodiment of the present invention. For the sake of simplicity, the display panel 1300 of FIG. 4A only shows a portion of the gate lines G1 G G3 and a portion of the data lines D1 D D7. The display panel 1300 includes a plurality of red sub-pixels R, a plurality of green sub-pixels G, and a plurality of blue sub-pixels B arranged in an array. Each of the gate lines G1 to G3 is connected to six sub-pixels, and the six sub-pixels are arranged in the order of the red sub-pixel R, the green sub-pixel G, and the blue sub-pixel B. In FIG. 4A, the positive and negative signs indicated in each sub-pixel indicate the driving voltages of the positive polarity and the negative polarity, respectively. In the case of a liquid crystal display panel, if a voltage of the same polarity is continuously applied to the pixel electrode, the liquid crystal molecules may be polarized, which may cause the image of the display screen to flicker or darken. Therefore, the liquid crystal display panel usually periodically changes the polarity of the driving voltage (as indicated by the sign in FIG. 4A) to maintain the display quality.
在「應用圖4A所示顯示面板1300作為圖1所示顯示面板13」的設備環境中，所述特定畫素圖案可以是「黑白水平線相間」的顏色樣式以及/或是「洋紅綠垂直線相間」的顏色樣式。所述「黑白水平線相間」的顏色樣式是指，第奇數條水平線為黑線而第偶數條水平線為白線，或者第奇數條水平線為白線而第偶數條水平線為黑線，如圖4B所示。所述「洋紅綠垂直線相間」的顏色樣式是指，第奇數條垂直線為洋紅（或稱品红，magenta）線而第偶數條垂直線為綠線，或者第奇數條垂直線為綠線而第偶數條垂直線為洋紅線，如圖4C所示。時序控制器11的偵測電路111可以偵測原顯示畫面14是否據有特定畫素圖案的所述顏色樣式。In the device environment of "applying the display panel 1300 shown in FIG. 4A as the display panel 13 shown in FIG. 1", the specific pixel pattern may be a "black and white horizontal and horizontal" color pattern and/or "a magenta green vertical line" Color style. The color pattern of the "black and white horizontal line phase" means that the odd-numbered horizontal lines are black lines and the even-numbered horizontal lines are white lines, or the odd-numbered horizontal lines are white lines and the even-numbered horizontal lines are black lines, as shown in FIG. 4B. The color pattern of the "foreign red-green vertical line phase" means that the odd-numbered vertical lines are magenta (or magenta, magenta) lines and the even-numbered vertical lines are green lines, or the odd-numbered vertical lines are green lines. The even vertical line is a magenta line, as shown in Figure 4C. The detecting circuit 111 of the timing controller 11 can detect whether the original display screen 14 has the color pattern of a specific pixel pattern.
圖4B繪示出圖4A所示顯示面板1300中各個子畫素所呈現的灰階組合的一個範例。基於圖4B所示灰階組合，圖4B所示原顯示畫面141是一個「黑白水平線相間」的畫面。請參照圖4A與圖4B，當原顯示畫面14（在圖4B中標示為141）呈現圖4B所示的顏色樣式時，時序控制器11將偵測到原顯示畫面141具有沿閘極線（水平線）方向排列的特定畫素圖案。舉例來說，圖4B所示畫素P1～P3分別包括1個紅色子畫素R、1個綠色子畫素G與1個藍色子畫素B。如圖4B所示，畫素P1與畫素P3的RGB灰階值均為（255, 255, 255），故畫素P1與畫素P3皆可顯示出白色。畫素P2的RGB灰階值為（0, 0, 0），故畫素P2可顯示出黑色。因此，若時序控制器11偵測到原顯示畫面141於閘極線（水平線）方向上形成白色線與黑色線所組成的特定畫素圖案時，表示圖2中的源極驅動器121（顯示面板驅動器12）可能會發生過溫事件。此時，時序控制器11需對圖4B所示原顯示畫面141進行灰階調整操作，藉此啟動降溫機制。所述灰階調整操作的實施細節可以參照圖1、圖2與圖3所示實施例的相關說明來類推。FIG. 4B illustrates an example of a gray scale combination presented by each sub-pixel in the display panel 1300 of FIG. 4A. Based on the gray scale combination shown in FIG. 4B, the original display screen 141 shown in FIG. 4B is a "black and white horizontal line" screen. Referring to FIG. 4A and FIG. 4B, when the original display screen 14 (labeled 141 in FIG. 4B) presents the color pattern shown in FIG. 4B, the timing controller 11 will detect that the original display screen 141 has a gate line ( A specific pixel pattern arranged in the direction of the horizontal line). For example, the pixels P1 to P3 shown in FIG. 4B include one red sub-pixel R, one green sub-pixel G, and one blue sub-pixel B, respectively. As shown in FIG. 4B, the RGB grayscale values of the pixel P1 and the pixel P3 are both (255, 255, 255), so that both the pixel P1 and the pixel P3 can display white. The RGB grayscale value of the pixel P2 is (0, 0, 0), so the pixel P2 can display black. Therefore, if the timing controller 11 detects that the original display screen 141 forms a specific pixel pattern composed of white lines and black lines in the direction of the gate line (horizontal line), it indicates the source driver 121 (display panel) in FIG. The driver 12) may have an over temperature event. At this time, the timing controller 11 needs to perform a grayscale adjustment operation on the original display screen 141 shown in FIG. 4B, thereby starting the cooling mechanism. The implementation details of the grayscale adjustment operation can be analogized with reference to the related description of the embodiment shown in FIG. 1, FIG. 2 and FIG.
所述灰階調整操作可採用相同步階量來調整特定畫素圖案中各子畫素的灰階值。以圖4B所示的畫素P1與畫素P2為例，時序控制器11可將畫素P1的RGB灰階值由最高灰階值(255, 255, 255)降低為第一目標灰階值，例如灰階值(160, 160, 160)。除此之外，時序控制器11還可將畫素P2的RGB灰階值由最低灰階值(0, 0, 0)升高至第二目標灰階值，例如灰階值(95, 95, 95)。所述數值0、95、160與255僅為示範性舉例，不應以此限制本實施例的實施方式。圖4A所示顯示面板1300中的其他畫素的所述灰階調整操作可以參照圖4B所示畫素P1與畫素P2的相關說明來類推，故不再贅述。The grayscale adjustment operation may use a phase synchronization step to adjust the grayscale value of each subpixel in a specific pixel pattern. Taking the pixel P1 and the pixel P2 shown in FIG. 4B as an example, the timing controller 11 can reduce the RGB grayscale value of the pixel P1 from the highest grayscale value (255, 255, 255) to the first target grayscale value. , for example, grayscale values (160, 160, 160). In addition, the timing controller 11 can also raise the RGB grayscale value of the pixel P2 from the lowest grayscale value (0, 0, 0) to the second target grayscale value, such as a grayscale value (95, 95). , 95). The values 0, 95, 160 and 255 are merely exemplary and should not be construed as limiting the embodiments of the embodiments. The grayscale adjustment operation of the other pixels in the display panel 1300 shown in FIG. 4A can be analogized with reference to the related description of the pixel P1 and the pixel P2 shown in FIG. 4B, and therefore will not be described again.
此外，在一些應用例中，為了避免人眼察覺影像灰階調整，時序控制器11可設定圖4B所示的畫素P1中各子畫素的灰階值(255, 255, 255)經由多個畫面期間漸變至第一目標灰階值，且圖4B所示的畫素P2中各子畫素的灰階值(0, 0, 0)經由所述多個畫面期間漸變至第二目標灰階值。舉例來說，時序控制器11可設定畫素P1與畫素P2中各子畫素的灰階值經由3個畫面期間漸變至目標灰階值。所述目標灰階值可以依照設計需求來決定。在此假設所述目標灰階值為（210, 210, 210）與（15, 15, 15）。在第一個畫面（frame）中，假設畫素P1的RGB灰階值為（255, 255, 255），且畫素P2的RGB灰階值為（0, 0, 0）。時序控制器11可在第二個畫面中將畫素P1的RGB灰階值調整為（220, 220, 220），且將畫素P2的RGB灰階值調整為（5, 5, 5）。接著，在第三個畫面中，畫素P1的RGB灰階值被調整為（215, 215, 215），且畫素P2的RGB灰階值被調整為（10, 10, 10）。最後，在第四個畫面中，畫素P1的RGB灰階值被調整為（210, 210, 210），且畫素P2的RGB灰階值被調整為（15, 15, 15）。In addition, in some applications, in order to prevent the human eye from perceiving the image grayscale adjustment, the timing controller 11 may set the grayscale value (255, 255, 255) of each subpixel in the pixel P1 shown in FIG. 4B. The screen period is gradually changed to the first target gray scale value, and the gray scale value (0, 0, 0) of each subpixel in the pixel P2 shown in FIG. 4B is gradually changed to the second target gray through the plurality of screen periods. Order value. For example, the timing controller 11 can set the grayscale value of each sub-pixel in the pixel P1 and the pixel P2 to be changed to the target grayscale value through three screen periods. The target grayscale value can be determined according to design requirements. It is assumed here that the target grayscale values are (210, 210, 210) and (15, 15, 15). In the first frame, it is assumed that the RGB grayscale value of the pixel P1 is (255, 255, 255), and the RGB grayscale value of the pixel P2 is (0, 0, 0). The timing controller 11 can adjust the RGB grayscale value of the pixel P1 to (220, 220, 220) in the second screen, and adjust the RGB grayscale value of the pixel P2 to (5, 5, 5). Next, in the third picture, the RGB grayscale value of the pixel P1 is adjusted to (215, 215, 215), and the RGB grayscale value of the pixel P2 is adjusted to (10, 10, 10). Finally, in the fourth picture, the RGB grayscale value of the pixel P1 is adjusted to (210, 210, 210), and the RGB grayscale value of the pixel P2 is adjusted to (15, 15, 15).
圖4C繪示出圖4A所示顯示面板1300中各個子畫素所呈現的另一種灰階組合的範例。基於圖4C所示灰階組合，圖4C所示原顯示畫面141是一個「洋紅綠垂直線相間」的畫面。請參照圖4A與圖4C，當顯示畫面141呈現圖4C所示的顏色樣式時，時序控制器11將偵測到顯示畫面141具有沿資料線（垂直線）方向排列的特定畫素圖案。舉例來說，如圖4C所示，畫素P1、畫素P2與畫素P3的RGB灰階值均為（255, 0, 255），故畫素P1、畫素P2與畫素P3皆可顯示出洋紅色（magenta）。畫素P4、畫素P5與畫素P6的RGB灰階值為（0, 255, 0），故畫素P4、畫素P5與畫素P6可顯示出綠色。因此，若時序控制器11偵測到顯示畫面141於資料線（垂直線）方向上所形成洋紅色線與綠色線所組成的特定畫素圖案時，表示圖2中的源極驅動器121（顯示面板驅動器12）可能會發生過溫事件。此時，時序控制器11需對圖4C所示原顯示畫面141進行灰階調整操作，藉此啟動降溫機制。FIG. 4C illustrates an example of another gray scale combination presented by each sub-pixel in the display panel 1300 of FIG. 4A. Based on the gray scale combination shown in FIG. 4C, the original display screen 141 shown in FIG. 4C is a screen of "magenta red and green vertical lines". Referring to FIGS. 4A and 4C, when the display screen 141 assumes the color pattern shown in FIG. 4C, the timing controller 11 will detect that the display screen 141 has a specific pixel pattern arranged in the direction of the data line (vertical line). For example, as shown in FIG. 4C, the RGB grayscale values of the pixel P1, the pixel P2, and the pixel P3 are both (255, 0, 255), so the pixel P1, the pixel P2, and the pixel P3 can be used. Show magenta (magenta). The RGB grayscale values of the pixel P4, the pixel P5, and the pixel P6 are (0, 255, 0), so the pixel P4, the pixel P5, and the pixel P6 can display green. Therefore, if the timing controller 11 detects a specific pixel pattern formed by the magenta line and the green line formed on the display line 141 in the direction of the data line (vertical line), it indicates the source driver 121 in FIG. 2 (display) The panel driver 12) may have an over temperature event. At this time, the timing controller 11 needs to perform a grayscale adjustment operation on the original display screen 141 shown in FIG. 4C, thereby starting the cooling mechanism.
所述灰階調整操作的實施細節可以參照圖1、圖2與圖3所示實施例的相關說明來類推。舉例來說，時序控制器11可將原顯示畫面141劃分為多個區塊，其中這些區塊的每一個具有多個畫素。在此假設畫素P1、畫素P2與畫素P3被劃分為同一個區塊。在同一個區塊中，時序控制器11的控制電路112可以從畫素P1、畫素P2與畫素P3的子畫素中隨意選擇一個具有最高灰階值的子畫素，例如選擇畫素P1的紅色子畫素。在同一個畫面期間中，控制電路112可以將畫素P1的紅色子畫素的灰階值由255降低至240，但是不變動同一個區塊中的其他子畫素的灰階值。以此類推，在下一個畫面期間中，控制電路112可以從畫素P1、畫素P2與畫素P3的子畫素中隨意選擇另一個具有最高灰階值的子畫素，然後將經選擇子畫素的灰階值由255降低至240，但是不變動同一個區塊中的其他子畫素的灰階值。The implementation details of the grayscale adjustment operation can be analogized with reference to the related description of the embodiment shown in FIG. 1, FIG. 2 and FIG. For example, the timing controller 11 may divide the original display screen 141 into a plurality of blocks, wherein each of the blocks has a plurality of pixels. It is assumed here that the pixel P1, the pixel P2 and the pixel P3 are divided into the same block. In the same block, the control circuit 112 of the timing controller 11 can arbitrarily select a sub-pixel having the highest grayscale value from the pixel P1, the pixel P2 and the sub-pixel of the pixel P3, for example, selecting a pixel. Red sub-pixel of P1. During the same picture period, the control circuit 112 can reduce the grayscale value of the red sub-pixel of the pixel P1 from 255 to 240, but does not change the grayscale values of other sub-pixels in the same block. By analogy, in the next picture period, the control circuit 112 can arbitrarily select another sub-pixel having the highest gray-scale value from the pixel P1, the pixel P2 and the sub-pixel of the pixel P3, and then select the sub-pixel. The grayscale value of the pixel is reduced from 255 to 240, but does not change the grayscale value of other subpixels in the same block.
圖5A是依照本發明的又一實施例說明圖1所示顯示面板13（在圖5A中標示為1301）的子畫素配置架構的示意圖。圖5B-5C是依照本發明的另一實施例說明灰階調整策略的示意圖。為求圖式簡潔，圖5A的顯示面板1301僅繪示出部分的閘極線G1～G7與部分的資料線D1～D4。顯示面板1301包括以陣列方式排列的多個紅色子畫素R、多個綠色子畫素G與多個藍色子畫素B。資料線D1～D4分別連接有6個子畫素，且這6個子畫素是依照藍色子畫素B、綠色子畫素G、紅色子畫素R的順序排列。於圖5A中，標示於各子畫素的箭號表示子畫素的驅動時序。FIG. 5A is a schematic diagram showing a sub-pixel configuration architecture of the display panel 13 (labeled 1301 in FIG. 5A) of FIG. 1 in accordance with yet another embodiment of the present invention. 5B-5C are schematic diagrams illustrating a grayscale adjustment strategy in accordance with another embodiment of the present invention. For the sake of simplicity, the display panel 1301 of FIG. 5A only shows a portion of the gate lines G1 G G7 and a portion of the data lines D1 D D4. The display panel 1301 includes a plurality of red sub-pixels R, a plurality of green sub-pixels G, and a plurality of blue sub-pixels B arranged in an array. The data lines D1 to D4 are respectively connected with six sub-pixels, and the six sub-pixels are arranged in the order of the blue sub-pixel B, the green sub-pixel G, and the red sub-pixel R. In FIG. 5A, the arrows indicated in the respective sub-pixels indicate the driving timing of the sub-pixels.
在「應用圖5A所示顯示面板1301作為圖1所示顯示面板13」的設備環境中，所述特定畫素圖案可以是「洋紅綠水平線相間」的顏色樣式以及/或是「黑白垂直線相間」的顏色樣式。所述「洋紅綠水平線相間」的顏色樣式是指，第奇數條水平線為洋紅線而第偶數條水平線為綠線，或者第奇數條水平線為綠線而第偶數條水平線為洋紅線，如圖5B所示。所述「黑白垂直線相間」的顏色樣式是指，第奇數條垂直線為黑線而第偶數條垂直線為白線，或者第奇數條垂直線為白線而第偶數條垂直線為黑線，如圖5C所示。時序控制器11的偵測電路111可以偵測原顯示畫面14是否具有特定畫素圖案的所述顏色樣式。In the device environment in which the display panel 1301 shown in FIG. 5A is applied as the display panel 13 shown in FIG. 1, the specific pixel pattern may be a color pattern of "magenta green horizontal lines" and/or "black and white vertical lines" Color style. The color pattern of the "magenta green horizontal line phase" means that the odd-numbered horizontal lines are magenta lines and the even-numbered horizontal lines are green lines, or the odd-numbered horizontal lines are green lines and the even-numbered horizontal lines are magenta lines, as shown in FIG. 5B. Shown. The color pattern of the "black and white vertical line phase" means that the odd-numbered vertical lines are black lines and the even-numbered vertical lines are white lines, or the odd-numbered vertical lines are white lines and the even-numbered vertical lines are black lines, such as Figure 5C shows. The detecting circuit 111 of the timing controller 11 can detect whether the original display screen 14 has the color pattern of a specific pixel pattern.
圖5B繪示出圖5A所示顯示面板1301中各個子畫素所呈現的灰階組合。基於圖5B所示灰階組合，圖5B所示原顯示畫面141是一個「洋紅綠水平線相間」的畫面。請參照圖5A與圖5B，當原顯示畫面14（在圖5B中標示為141）呈現圖5B所示的顏色樣式時，時序控制器11將偵測到原顯示畫面141具有沿閘極線（水平線）方向排列的特定畫素圖案。舉例來說，圖5B所示畫素P1與畫素P2分別包括1個紅色子畫素R、1個綠色子畫素G與1個藍色子畫素B。如圖5B所示，畫素P1的RGB灰階值為（255, 0, 255），故畫素P1可顯示出洋紅色（magenta）。畫素P2的RGB灰階值為（0, 255, 0），故畫素P2可顯示出綠色。因此，若時序控制器11偵測到原顯示畫面141於閘極線（水平線）方向上形成洋紅色線與綠色線所組成的特定畫素圖案時，表示圖2中的源極驅動器121（顯示面板驅動器12）可能會發生過溫事件。此時，時序控制器11需對圖5B所示原顯示畫面141進行灰階調整操作，藉此啟動降溫機制。所述灰階調整操作的實施細節可以參照圖1、圖2與圖3所示實施例的相關說明來類推。FIG. 5B illustrates the gray scale combination presented by each sub-pixel in the display panel 1301 shown in FIG. 5A. Based on the gray scale combination shown in FIG. 5B, the original display screen 141 shown in FIG. 5B is a screen of "magenta green horizontal lines". Referring to FIG. 5A and FIG. 5B, when the original display screen 14 (labeled as 141 in FIG. 5B) presents the color pattern shown in FIG. 5B, the timing controller 11 will detect that the original display screen 141 has a gate line ( A specific pixel pattern arranged in the direction of the horizontal line). For example, the pixel P1 and the pixel P2 shown in FIG. 5B include one red sub-pixel R, one green sub-pixel G, and one blue sub-pixel B, respectively. As shown in FIG. 5B, the RGB grayscale value of the pixel P1 is (255, 0, 255), so the pixel P1 can display magenta. The RGB grayscale value of the pixel P2 is (0, 255, 0), so the pixel P2 can display green. Therefore, if the timing controller 11 detects that the original display screen 141 forms a specific pixel pattern composed of magenta lines and green lines in the direction of the gate line (horizontal line), it indicates the source driver 121 in FIG. 2 (display) The panel driver 12) may have an over temperature event. At this time, the timing controller 11 needs to perform a grayscale adjustment operation on the original display screen 141 shown in FIG. 5B, thereby starting the cooling mechanism. The implementation details of the grayscale adjustment operation can be analogized with reference to the related description of the embodiment shown in FIG. 1, FIG. 2 and FIG.
舉例來說，時序控制器11可將原顯示畫面141劃分為多個區塊，其中這些區塊的每一個具有多個畫素。在此假設畫素P1與畫素P2被劃分為同一個區塊。在同一個區塊中，時序控制器11的控制電路112可以從畫素P1與畫素P2的子畫素中隨意選擇一個具有最高灰階值的子畫素，例如選擇畫素P1的紅色子畫素。在同一個畫面期間中，控制電路112可以將畫素P1的紅色子畫素的灰階值由255降低至240，但是不變動同一個區塊中的其他子畫素的灰階值。以此類推，在下一個畫面期間中，控制電路112可以從畫素P1與畫素P2的子畫素中隨意選擇另一個具有最高灰階值的子畫素，然後將經選擇子畫素的灰階值由255降低至240，但是不變動同一個區塊中的其他子畫素的灰階值。。For example, the timing controller 11 may divide the original display screen 141 into a plurality of blocks, wherein each of the blocks has a plurality of pixels. It is assumed here that the pixel P1 and the pixel P2 are divided into the same block. In the same block, the control circuit 112 of the timing controller 11 can arbitrarily select a sub-pixel having the highest grayscale value from the pixel P1 and the sub-pixel of the pixel P2, for example, selecting the red sub-pixel of the pixel P1. Picture. During the same picture period, the control circuit 112 can reduce the grayscale value of the red sub-pixel of the pixel P1 from 255 to 240, but does not change the grayscale values of other sub-pixels in the same block. By analogy, in the next picture period, the control circuit 112 can arbitrarily select another sub-pixel having the highest gray level value from the pixel P1 and the sub-pixel of the pixel P2, and then select the sub-pixel of the selected pixel. The order value is reduced from 255 to 240, but does not change the grayscale values of other sub-pixels in the same block. .
圖5C繪示出圖5A所示顯示面板1301中各個子畫素所呈現的另一種灰階組合的範例。基於圖5C所示灰階組合，圖5C所示原顯示畫面141是一個「黑白垂直線相間」的畫面。請參照圖5A與5C，當顯示畫面141呈現圖5C所示的顏色樣式時，時序控制器11將偵測到顯示畫面141具有沿資料線（垂直線）方向排列的特定畫素圖案。舉例來說，如圖5C所示，畫素P1的RGB灰階值為（255, 255, 255），故畫素P1可顯示出白色。畫素P3的RGB灰階值可表示為（0, 0, 0），故畫素P3可顯示出黑色。因此，若時序控制器11偵測到原顯示畫面141於資料線（垂直線）方向上形成白色線與黑色線所組成的特定畫素圖案時，表示圖2中的源極驅動器121（顯示面板驅動器12）可能會發生過溫事件。此時，時序控制器11需對圖5C所示原顯示畫面141進行灰階調整操作，藉此啟動降溫機制。所述灰階調整操作的實施細節可以參照圖4B所示實施例的相關說明來類推，故不再贅述。FIG. 5C illustrates an example of another gray scale combination presented by each sub-pixel in the display panel 1301 shown in FIG. 5A. Based on the gray scale combination shown in FIG. 5C, the original display screen 141 shown in FIG. 5C is a "black and white vertical line" screen. Referring to FIGS. 5A and 5C, when the display screen 141 assumes the color pattern shown in FIG. 5C, the timing controller 11 will detect that the display screen 141 has a specific pixel pattern arranged in the direction of the data line (vertical line). For example, as shown in FIG. 5C, the RGB grayscale value of the pixel P1 is (255, 255, 255), so the pixel P1 can display white. The RGB grayscale value of the pixel P3 can be expressed as (0, 0, 0), so the pixel P3 can display black. Therefore, if the timing controller 11 detects that the original display screen 141 forms a specific pixel pattern composed of white lines and black lines in the data line (vertical line) direction, it indicates the source driver 121 (display panel) in FIG. The driver 12) may have an over temperature event. At this time, the timing controller 11 needs to perform a grayscale adjustment operation on the original display screen 141 shown in FIG. 5C, thereby starting the cooling mechanism. The implementation details of the grayscale adjustment operation can be analogized with reference to the related description of the embodiment shown in FIG. 4B, and therefore will not be described again.
圖6A是依照本發明的再一實施例說明圖1所示顯示面板13（在圖6A中標示為1302）的子畫素配置架構的示意圖。圖6B-6C是依照本發明的又一實施例說明灰階調整策略的示意圖。圖6A的顯示面板1302包括以陣列方式排列的多個紅色子畫素R、多個綠色子畫素G與多個藍色子畫素B，並形成2D2G（即兩條資料線與兩條掃描線）的畫素架構。閘極線G1～G4分別連接有4個子畫素，且這4個子畫素是依照紅色子畫素R、綠色子畫素G、藍色子畫素B的順序排列。奇數資料線D R(Odd)與偶數資料線D R(Even)分別連接2個紅色子畫素R。同樣的，奇數資料線D G(Odd)與偶數資料線D G(Even)分別連接2個綠色子畫素G，而奇數資料線D B(Odd)與偶數資料線D B(Even)分別連接2個藍色子畫素B。於圖6A中，標示於各子畫素的正負符號分別表示正極性與負極性的驅動電壓。 FIG. 6A is a schematic diagram showing a sub-pixel configuration architecture of the display panel 13 (labeled 1302 in FIG. 6A) of FIG. 1 in accordance with yet another embodiment of the present invention. 6B-6C are schematic diagrams illustrating a grayscale adjustment strategy in accordance with yet another embodiment of the present invention. The display panel 1302 of FIG. 6A includes a plurality of red sub-pixels R, a plurality of green sub-pixels G, and a plurality of blue sub-pixels B arranged in an array, and forms 2D2G (ie, two data lines and two scans). Line) of the pixel structure. Each of the gate lines G1 to G4 is connected to four sub-pixels, and the four sub-pixels are arranged in the order of the red sub-pixel R, the green sub-pixel G, and the blue sub-pixel B. The odd data line D R (Odd) and the even data line D R (Even) are respectively connected to two red sub-pixels R. Similarly, the odd data line D G (Odd) and the even data line D G (Even) are respectively connected to two green sub-pixels G, and the odd data lines D B (Odd) and the even data lines D B (Even) are respectively connected. 2 blue sub-pixels B. In FIG. 6A, the positive and negative signs indicated in each sub-pixel indicate the driving voltages of the positive polarity and the negative polarity, respectively.
在「應用圖6A所示顯示面板1302作為圖1所示顯示面板13」的設備環境中，所述特定畫素圖案可以是「雙黑水平線雙白水平線相間」顏色樣式以及/或是「洋紅點綠點相間」顏色樣式。所述「洋紅點綠點相間」顏色樣式是指，當二個垂直相鄰畫素為洋紅點時其周圍畫素均為綠點，以及當二個垂直相鄰畫素為綠點時其周圍畫素均為洋紅點，如圖6B所示。所述「雙黑水平線雙白水平線相間」顏色樣式是指，第i條水平線與第i+1條水平線為白線而第i+2條與第i+3條水平線為黑線，其中i為正整數，如圖6C所示。時序控制器11的偵測電路111可以偵測原顯示畫面14是否據有特定畫素圖案的所述顏色樣式。In the device environment in which the display panel 1302 shown in FIG. 6A is applied as the display panel 13 shown in FIG. 1, the specific pixel pattern may be a "double black horizontal line double white horizontal line" color pattern and/or a "red dot" Green dot phase" color style. The "red dot green dot phase" color pattern means that when two vertically adjacent pixels are magenta dots, the surrounding pixels are green dots, and when two vertically adjacent pixels are green dots, the periphery thereof The pixels are magenta dots, as shown in Figure 6B. The "double black horizontal line double white horizontal line phase" color pattern means that the i-th horizontal line and the i+1th horizontal line are white lines and the i+2th and i+3 horizontal lines are black lines, wherein i is positive An integer, as shown in Figure 6C. The detecting circuit 111 of the timing controller 11 can detect whether the original display screen 14 has the color pattern of a specific pixel pattern.
圖6B繪示出圖6A所示顯示面板1302中各個子畫素所呈現的一種灰階組合。基於圖6B所示灰階組合，圖6B所示原顯示畫面141是一個「洋紅點綠點相間」的畫面。請參照圖6A與圖6B，當原顯示畫面14（在圖6B中標示為141）呈現圖6B所示的顏色樣式時，時序控制器11將偵測到原顯示畫面141具有特定畫素圖案。舉例來說，圖6B所示的畫素P1～P4分別包括1個紅色子畫素R、1個綠色子畫素G與1個藍色子畫素B。如圖6B所示，畫素P1與畫素P2的RGB灰階值均為（255, 0, 255），故畫素P1與畫素P2皆顯示出洋紅色（magenta）。畫素P3與畫素P4的RGB灰階值為（0, 255, 0），故畫素P3與畫素P4皆顯示出綠色。因此，若時序控制器11偵測到原顯示畫面141具有「洋紅點綠點相間」的特定畫素圖案時，表示圖2中的源極驅動器121（顯示面板驅動器12）可能會發生過溫事件，故時序控制器11將對顯示畫面141進行灰階調整操作。所述灰階調整操作的實施細節可以參照圖1、圖2與圖3所示實施例的相關說明來類推。FIG. 6B illustrates a gray scale combination presented by each sub-pixel in the display panel 1302 shown in FIG. 6A. Based on the gray scale combination shown in FIG. 6B, the original display screen 141 shown in FIG. 6B is a "magenta dot green dot phase" screen. Referring to FIGS. 6A and 6B, when the original display screen 14 (labeled 141 in FIG. 6B) presents the color pattern shown in FIG. 6B, the timing controller 11 will detect that the original display screen 141 has a specific pixel pattern. For example, the pixels P1 to P4 shown in FIG. 6B include one red sub-pixel R, one green sub-pixel G, and one blue sub-pixel B, respectively. As shown in FIG. 6B, the RGB grayscale values of the pixel P1 and the pixel P2 are both (255, 0, 255), so both the pixel P1 and the pixel P2 display magenta. The RGB grayscale values of the pixel P3 and the pixel P4 are (0, 255, 0), so both the pixel P3 and the pixel P4 are displayed in green. Therefore, if the timing controller 11 detects that the original display screen 141 has a specific pixel pattern of "red dot green dots", it indicates that the source driver 121 (display panel driver 12) in FIG. 2 may have an overtemperature event. Therefore, the timing controller 11 performs a grayscale adjustment operation on the display screen 141. The implementation details of the grayscale adjustment operation can be analogized with reference to the related description of the embodiment shown in FIG. 1, FIG. 2 and FIG.
舉例來說，時序控制器11可將原顯示畫面141劃分為多個區塊，其中這些區塊的每一個具有多個畫素。在此假設畫素P1、畫素P2與畫素P3被劃分為同一個區塊。在同一個區塊中，時序控制器11的控制電路112可以從畫素P1、畫素P2與畫素P3的子畫素中隨意選擇一個具有最高灰階值的子畫素，例如選擇畫素P1的紅色子畫素。在同一個畫面期間中，控制電路112可以將畫素P1的紅色子畫素的灰階值由255降低至240，但是不變動同一個區塊中的其他子畫素的灰階值。以此類推，在下一個畫面期間中，控制電路112可以從畫素P1、畫素P2與畫素P3的子畫素中隨意選擇另一個具有最高灰階值的子畫素，然後將經選擇子畫素的灰階值由255降低至240，但是不變動同一個區塊中的其他子畫素的灰階值。For example, the timing controller 11 may divide the original display screen 141 into a plurality of blocks, wherein each of the blocks has a plurality of pixels. It is assumed here that the pixel P1, the pixel P2 and the pixel P3 are divided into the same block. In the same block, the control circuit 112 of the timing controller 11 can arbitrarily select a sub-pixel having the highest grayscale value from the pixel P1, the pixel P2 and the sub-pixel of the pixel P3, for example, selecting a pixel. Red sub-pixel of P1. During the same picture period, the control circuit 112 can reduce the grayscale value of the red sub-pixel of the pixel P1 from 255 to 240, but does not change the grayscale values of other sub-pixels in the same block. By analogy, in the next picture period, the control circuit 112 can arbitrarily select another sub-pixel having the highest gray-scale value from the pixel P1, the pixel P2 and the sub-pixel of the pixel P3, and then select the sub-pixel. The grayscale value of the pixel is reduced from 255 to 240, but does not change the grayscale value of other subpixels in the same block.
圖6C繪示出圖6A所示顯示面板1302中各個子畫素所呈現的不同灰階組合的另一種範例。基於圖6C所示灰階組合，圖6C所示原顯示畫面141是一個「雙黑水平線雙白水平線相間」的畫面。若時序控制器11偵測到上述「雙黑水平線雙白水平線相間」顏色樣式的特定畫素圖案時，時序控制器11將對顯示畫面141進行灰階調整操作，藉此啟動降溫機制。所述灰階調整操作的實施細節可以參照圖4B所示實施例的相關說明來類推，在此不在贅述。FIG. 6C illustrates another example of different grayscale combinations presented by each of the sub-pixels in the display panel 1302 of FIG. 6A. Based on the gray scale combination shown in FIG. 6C, the original display screen 141 shown in FIG. 6C is a screen of "double black horizontal line and double white horizontal lines". If the timing controller 11 detects the specific pixel pattern of the "double black horizontal line double white horizontal line phase" color pattern, the timing controller 11 performs a gray scale adjustment operation on the display screen 141, thereby starting the cooling mechanism. The implementation details of the grayscale adjustment operation may be analogized with reference to the related description of the embodiment shown in FIG. 4B, and details are not described herein.
圖7A是依照本發明的更一實施例說明圖1所示顯示面板13（在圖7A中標示為1303）的子畫素配置架構的示意圖。圖7B-7C是依照本發明的再一實施例說明灰階調整策略的示意圖。為求圖式簡潔，圖7A的顯示面板1303僅繪示出部分的閘極線G1～G8與部分的資料線D1～D5。顯示面板1303包括以陣列方式排列的多個紅色子畫素R、多個綠色子畫素G、多個藍色子畫素B與多個白色子畫素W。於圖7A中，標示於各子畫素的正負符號分別表示正極性與負極性的驅動電壓。FIG. 7A is a schematic diagram showing a sub-pixel configuration architecture of the display panel 13 (labeled 1303 in FIG. 7A) of FIG. 1 in accordance with a further embodiment of the present invention. 7B-7C are schematic diagrams illustrating a grayscale adjustment strategy in accordance with still another embodiment of the present invention. For the sake of simplicity, the display panel 1303 of FIG. 7A only shows a portion of the gate lines G1 G G8 and a portion of the data lines D1 D D5. The display panel 1303 includes a plurality of red sub-pixels R, a plurality of green sub-pixels G, a plurality of blue sub-pixels B, and a plurality of white sub-pixels W arranged in an array. In FIG. 7A, the positive and negative signs indicated in each sub-pixel indicate the driving voltages of the positive polarity and the negative polarity, respectively.
在「應用圖7A所示顯示面板1303作為圖1所示顯示面板13」的設備環境中，所述特定畫素圖案可以是「洋紅畫面」顏色樣式、「亮綠畫面」顏色樣式、「亮紅畫面」顏色樣式以及/或是「青綠畫面」顏色樣式。所述「洋紅畫面」顏色樣式是指，所有畫素均為洋紅色，亦即RGBW灰階值為（255, 0, 255, 0），如圖7B所示。所述「亮綠畫面」顏色樣式是指，所有畫素均為亮綠色，亦即RGBW灰階值為（0, 255, 0, 255）。所述「亮紅畫面」顏色樣式是指，所有畫素均為亮紅色，亦即RGBW灰階值為（255, 0, 0, 255）。所述「青綠畫面」顏色樣式是指，所有畫素均為青綠色（Cyan），亦即RGBW灰階值為（0, 255, 255, 0），如圖7C所示。時序控制器11的偵測電路111可以偵測原顯示畫面14是否具有特定畫素圖案的所述顏色樣式。In the device environment in which the display panel 1303 shown in FIG. 7A is applied as the display panel 13 shown in FIG. 1 , the specific pixel pattern may be a “magenta screen” color style, a “bright green screen” color style, and “bright red”. Screen "color style and / or "green screen" color style. The "magenta picture" color style means that all pixels are magenta, that is, the RGBW grayscale value is (255, 0, 255, 0), as shown in FIG. 7B. The "bright green picture" color style means that all pixels are bright green, that is, the RGBW grayscale value is (0, 255, 0, 255). The "bright red picture" color style means that all pixels are bright red, that is, the RGBW grayscale value is (255, 0, 0, 255). The "green-green" color style means that all pixels are cyan, that is, the RGBW grayscale values are (0, 255, 255, 0), as shown in FIG. 7C. The detecting circuit 111 of the timing controller 11 can detect whether the original display screen 14 has the color pattern of a specific pixel pattern.
圖7B繪示出圖7A所示顯示面板1303中各個子畫素所呈現的一種灰階組合。基於圖7B所示灰階組合，圖7B所示原顯示畫面141是一個「洋紅畫面」的畫面。請參照圖7A與圖7B，時序控制器11可將原顯示畫面14（在圖7B中標示為141）劃分為多個區塊，其中這些區塊的每一個具有多個畫素。在此假設原顯示畫面141包括4個區塊B1～B4。當原顯示畫面141呈現圖7B所示的顏色樣式時，時序控制器11將偵測到原顯示畫面141具有「洋紅畫面」的特定畫素圖案。如圖7B所示，在同一個區塊（例如區塊B1）中，時序控制器11的控制電路112可以從區塊B1中的子畫素中隨意選擇一個具有最高灰階值的子畫素，例如選擇區塊B1中左上角的紅色子畫素。在同一個畫面期間中，控制電路112可以將區塊B1中左上角的紅色子畫素的灰階值由255降低至240，但是不變動同一個區塊B1中的其他子畫素的灰階值。以此類推，在下一個畫面期間中，控制電路112可以從區塊B1中的子畫素中隨意選擇另一個具有最高灰階值的子畫素，然後將經選擇子畫素的灰階值由255降低至240，但是不變動同一個區塊B1中的其他子畫素的灰階值。其他區塊B2～B4的操作細節可以參照區塊B1的相關說明來類推，故不再贅述。FIG. 7B illustrates a gray scale combination presented by each sub-pixel in the display panel 1303 shown in FIG. 7A. Based on the gray scale combination shown in FIG. 7B, the original display screen 141 shown in FIG. 7B is a "magenta screen" screen. Referring to FIGS. 7A and 7B, the timing controller 11 may divide the original display screen 14 (labeled 141 in FIG. 7B) into a plurality of blocks, wherein each of the blocks has a plurality of pixels. It is assumed here that the original display screen 141 includes four blocks B1 to B4. When the original display screen 141 exhibits the color pattern shown in FIG. 7B, the timing controller 11 will detect that the original display screen 141 has a specific pixel pattern of "magenta picture". As shown in FIG. 7B, in the same block (for example, block B1), the control circuit 112 of the timing controller 11 can arbitrarily select a sub-pixel having the highest grayscale value from the sub-pixels in the block B1. For example, select the red sub-pixel in the upper left corner of block B1. During the same picture period, the control circuit 112 can reduce the grayscale value of the red sub-pixel in the upper left corner of the block B1 from 255 to 240, but does not change the gray level of other sub-pixels in the same block B1. value. By analogy, in the next picture period, the control circuit 112 can arbitrarily select another sub-pixel having the highest gray-scale value from the sub-pixels in the block B1, and then the gray-scale value of the selected sub-pixel is 255 is reduced to 240, but does not change the grayscale values of other sub-pixels in the same block B1. The operation details of the other blocks B2 to B4 can be analogized with reference to the related description of the block B1, and therefore will not be described again.
圖7C繪示出圖7A所示顯示面板1303中各個子畫素所呈現的另一種灰階組合的範例。基於圖7C所示灰階組合，圖7C所示原顯示畫面141是一個「青綠畫面」的顏色樣式。若時序控制器11偵測到原顯示畫面141形成圖4C所示的「青綠畫面」的特定畫素圖案時，時序控制器11將對原顯示畫面141進行灰階調整操作，其操作方式可參考圖7B所述灰階調整的方式，在此不在贅述。FIG. 7C illustrates an example of another gray scale combination presented by each sub-pixel in the display panel 1303 shown in FIG. 7A. Based on the gray scale combination shown in Fig. 7C, the original display screen 141 shown in Fig. 7C is a "green screen" color pattern. When the timing controller 11 detects that the original display screen 141 forms a specific pixel pattern of the "green screen" shown in FIG. 4C, the timing controller 11 performs a grayscale adjustment operation on the original display screen 141, and its operation mode can be referred to. The manner of gray scale adjustment described in FIG. 7B is not described herein.
於上述諸實施例中，若時序控制器11偵測到原顯示畫面141具有所述特定畫素圖案時，亦可採用調降頻率的方式來避免圖2中的源極驅動器121發生過溫事件。舉例來說，假設顯示畫面141的畫面更新率（frame rate）為60Hz，時序控制器11可將顯示畫面141的畫面更新率由60Hz降至45Hz，以便減緩源極驅動器121的增溫速率。In the above embodiments, if the timing controller 11 detects that the original display picture 141 has the specific pixel pattern, the frequency reduction frequency may also be adopted to avoid the over-temperature event of the source driver 121 in FIG. . For example, assuming that the frame update rate of the display screen 141 is 60 Hz, the timing controller 11 can reduce the picture update rate of the display screen 141 from 60 Hz to 45 Hz in order to slow down the temperature increase rate of the source driver 121.
圖8是依照本發明的另一實施例的執行溫度管理方法的電路方塊示意圖。如圖8所示，時序控制器11包括偵測電路111以及控制電路112。偵測電路111可偵測顯示面板13T的原顯示畫面14是否具有特定畫素圖案（specific pixel pattern）。所述特定畫素圖案可包括位於顯示面板13T的同一資料線上且時序上相鄰的第一子畫素與第二子畫素，其中第一子畫素的灰階值具有最高灰階值，且第二子畫素的灰階值具有最低灰階值。FIG. 8 is a circuit block diagram of a method of performing temperature management in accordance with another embodiment of the present invention. As shown in FIG. 8, the timing controller 11 includes a detection circuit 111 and a control circuit 112. The detecting circuit 111 can detect whether the original display screen 14 of the display panel 13T has a specific pixel pattern. The specific pixel pattern may include a first sub-pixel and a second sub-pixel that are temporally adjacent to each other on the same data line of the display panel 13T, wherein the grayscale value of the first sub-pixel has the highest grayscale value. And the grayscale value of the second subpixel has the lowest grayscale value.
控制電路112耦接至偵測電路111。控制電路112可決定是否對所述第一子畫素與所述第二子畫素載入灰階電壓的載入順序進行調整，以避免顯示面板驅動器12發生過溫事件。當控制電路112決定不調整所述載入順序時，控制電路112可將原顯示畫面14提供給顯示面板驅動器12，而當偵測電路111偵測到原顯示畫面14具有所述特定畫素圖案時，控制電路112可輸出時脈訊號CLK來調整所述載入灰階電壓的載入順序，以便啟動降溫機制。例如：控制電路112可先載入第二子畫素的灰階電壓，再載入第一子畫素的灰階電壓，或是先載入第一子畫素的灰階電壓，再載入第二子畫素的灰階電壓。The control circuit 112 is coupled to the detection circuit 111. The control circuit 112 may determine whether to adjust the loading order of the first sub-pixel and the second sub-pixel loading gray scale voltage to avoid an over-temperature event of the display panel driver 12. When the control circuit 112 decides not to adjust the loading sequence, the control circuit 112 can provide the original display screen 14 to the display panel driver 12, and when the detecting circuit 111 detects that the original display screen 14 has the specific pixel pattern. The control circuit 112 can output the clock signal CLK to adjust the loading order of the loaded gray scale voltage to initiate the cooling mechanism. For example, the control circuit 112 may first load the grayscale voltage of the second subpixel, then load the grayscale voltage of the first subpixel, or first load the grayscale voltage of the first subpixel, and then load The grayscale voltage of the second subpixel.
圖9是依照本發明的一實施例說明圖8的顯示面板驅動器的溫度管理方法的流程示意圖。請參照圖8與圖9，於步驟S10（偵測步驟）中，時序控制器11可藉由偵測電路111對顯示面板13T的原顯示畫面14進行偵測，以便進入步驟S20來判斷原顯示畫面14是否存在特定畫素圖案。所述特定畫素圖案包括位於顯示面板13T的同一資料線上且時序上相鄰的第一子畫素與第二子畫素，所述第一子畫素的灰階值具有最高灰階值，且所述第二子畫素的灰階值具有最低灰階值。步驟S10與步驟S20的實施細節可以參照圖1與圖2所示實施例中關於偵測電路111的相關說明來類推，故不再贅述。FIG. 9 is a flow chart showing a temperature management method of the display panel driver of FIG. 8 according to an embodiment of the invention. Referring to FIG. 8 and FIG. 9, in step S10 (detection step), the timing controller 11 can detect the original display screen 14 of the display panel 13T by the detecting circuit 111, so as to proceed to step S20 to determine the original display. Whether the picture 14 has a specific pixel pattern exists. The specific pixel pattern includes a first sub-pixel and a second sub-pixel that are temporally adjacent to each other on the same data line of the display panel 13T, and the grayscale value of the first sub-pixel has the highest grayscale value. And the grayscale value of the second subpixel has the lowest grayscale value. The implementation details of the step S10 and the step S20 can be referred to the related description of the detecting circuit 111 in the embodiment shown in FIG. 1 and FIG. 2, and therefore will not be described again.
當時序控制器11偵測到原顯示畫面14不具有所述特定畫素圖案時（步驟S20的判斷結果為「否」），時序控制器11可以不調整子畫素的灰階電壓的載入順序而將原顯示畫面14提供給顯示面板驅動器12。當時序控制器11偵測到原顯示畫面14具有所述特定畫素圖案時（步驟S20的判斷結果為「是」），時序控制器11將在步驟S40（時序調整步驟）進行時序調整操作，讓時序控制器11可及時對第一子畫素與第二子畫素載入灰階電壓的載入順序進行調整，以避免顯示面板驅動器12發生過溫事件。When the timing controller 11 detects that the original display screen 14 does not have the specific pixel pattern (NO in step S20), the timing controller 11 may not adjust the loading of the grayscale voltage of the sub-pixel. The original display screen 14 is supplied to the display panel driver 12 in order. When the timing controller 11 detects that the original display screen 14 has the specific pixel pattern (YES in step S20), the timing controller 11 performs a timing adjustment operation in step S40 (timing adjustment step). The timing controller 11 can adjust the loading order of the first sub-pixel and the second sub-pixel loading gray scale voltage in time to avoid an over-temperature event of the display panel driver 12.
圖10A是依照本發明的一實施例說明圖8所示顯示面板13T的子畫素以第一驅動方式運作的示意圖。為求圖式簡潔，圖10A的顯示面板13T僅繪示出部分的閘極線G1～G8與部分的資料線D1～D5。顯示面板13T包括以陣列方式排列的多個紅色子畫素R、多個綠色子畫素G、多個藍色子畫素B與多個白色子畫素W。在應用圖10A所示顯示面板13T的設備環境中，所述特定畫素圖案可以包括第一子畫素、第二子畫素、第三子畫素與第四子畫素，所述第一子畫素與所述第三子畫素可具有最高灰階值（例如255），且所述第二子畫素與所述第四子畫素可具有最低灰階值（例如0）。當顯示面板驅動器12依序驅動第一子畫素、第二子畫素、第三子畫素與第四子畫素時（如圖10A中箭號方向所示），顯示面板驅動器12將發生過溫事件。FIG. 10A is a schematic diagram showing the operation of the sub-pixel of the display panel 13T of FIG. 8 in the first driving mode according to an embodiment of the invention. For the sake of simplicity, the display panel 13T of FIG. 10A shows only a part of the gate lines G1 to G8 and a part of the data lines D1 to D5. The display panel 13T includes a plurality of red sub-pixels R, a plurality of green sub-pixels G, a plurality of blue sub-pixels B, and a plurality of white sub-pixels W arranged in an array. In the device environment to which the display panel 13T shown in FIG. 10A is applied, the specific pixel pattern may include a first sub-pixel, a second sub-pixel, a third sub-pixel, and a fourth sub-pixel, the first The sub-pixel and the third sub-pixel may have the highest gray level value (eg, 255), and the second sub-pixel and the fourth sub-pixel may have the lowest gray level value (eg, 0). When the display panel driver 12 sequentially drives the first sub-pixel, the second sub-pixel, the third sub-pixel, and the fourth sub-pixel (as indicated by the arrow direction in FIG. 10A), the display panel driver 12 will occur. Over temperature event.
圖10B是依照本發明的一實施例說明圖10A的資料線D3、D4上的灰階電壓擺幅的示意圖。請參照圖10A與圖10B所示，資料線D3上的第一子畫素1001（紅色子畫素R）與第三子畫素1003（紅色子畫素R）具有高灰階電壓準位，故第一子畫素1001（紅色子畫素R）與第三子畫素1003（紅色子畫素R）可呈現高灰階值（例如最高灰階值255）。資料線D3上的第二子畫素1002（綠色子畫素G）與第四子畫素1004（綠色子畫素G）具有低灰階電壓準位，故第二子畫素1002（綠色子畫素G）與第四子畫素1004（綠色子畫素G）可呈現低灰階值（例如最低灰階值0）。FIG. 10B is a schematic diagram showing the gray scale voltage swing on the data lines D3, D4 of FIG. 10A in accordance with an embodiment of the present invention. Referring to FIG. 10A and FIG. 10B, the first sub-pixel 1001 (red sub-pixel R) and the third sub-pixel 1003 (red sub-pixel R) on the data line D3 have high gray level voltage levels. Therefore, the first sub-pixel 1001 (red sub-pixel R) and the third sub-pixel 1003 (red sub-pixel R) can exhibit high grayscale values (eg, the highest grayscale value of 255). The second sub-pixel 1002 (green sub-pixel G) and the fourth sub-pixel 1004 (green sub-pixel G) on the data line D3 have low gray level voltage levels, so the second sub-pixel 1002 (green sub-pixel) The pixel G) and the fourth sub-pixel 1004 (green sub-pixel G) may exhibit low grayscale values (eg, the lowest grayscale value of 0).
同樣的，資料線D4上的第一子畫素1011（藍色子畫素B）與第三子畫素1013（藍色子畫素B）可呈現高灰階值（例如最高灰階值255）。資料線D4上的第二子畫素1012（白色子畫素W）與第四子畫素1014（白色子畫素W）可呈現低灰階值（例如最低灰階值0）。當顯示面板13T的子畫素以圖10A的第一驅動方式運作時，由於資料線D3、D4上的灰階電壓擺幅過大，顯示面板驅動器12需要耗費更多功率來驅動資料線D3、D4的子畫素，使得顯示面板驅動器12可能會發生過溫事件。Similarly, the first sub-pixel 1011 (blue sub-pixel B) and the third sub-pixel 1013 (blue sub-pixel B) on the data line D4 can exhibit high gray-scale values (for example, the highest gray level value 255) ). The second sub-pixel 1012 (white sub-pixel W) and the fourth sub-pixel 1014 (white sub-pixel W) on the data line D4 may exhibit low grayscale values (eg, lowest grayscale value 0). When the sub-pixel of the display panel 13T operates in the first driving mode of FIG. 10A, since the gray scale voltage swing on the data lines D3 and D4 is too large, the display panel driver 12 needs to consume more power to drive the data lines D3 and D4. The sub-pixels cause the display panel driver 12 to have an over-temperature event.
為了改善圖10A的第一驅動方式所引起的過溫事件，時序控制器11可透過時脈訊號CLK的調整來改變顯示面板驅動器12的驅動方式，藉此啟動降溫機制。舉例來說，圖11A是依照本發明的一實施例說明圖10A所示顯示面板13T的子畫素以第二驅動方式運作的示意圖。於圖11A中。時序控制器11可控制顯示面板驅動器12採用第二驅動方式來驅動資料線D3、D4的子畫素，以避免顯示面板驅動器12發生過溫事件。如圖11A中箭號方向所示，以資料線D3為例，顯示面板驅動器12將依序驅動第一子畫素1001（紅色子畫素R）、第二子畫素1002（綠色子畫素G）、第四子畫素1004（綠色子畫素G）與第三子畫素1003（紅色子畫素R）。以資料線D4為例，顯示面板驅動器12將依序驅動第一子畫素1011（藍色子畫素B）、第二子畫素1012（白色子畫素W）、第四子畫素1014（白色子畫素W）與第三子畫素1013（藍色子畫素B）。In order to improve the over-temperature event caused by the first driving mode of FIG. 10A, the timing controller 11 can change the driving mode of the display panel driver 12 by adjusting the clock signal CLK, thereby starting the cooling mechanism. For example, FIG. 11A is a schematic diagram illustrating the operation of a sub-pixel of the display panel 13T of FIG. 10A in a second driving manner according to an embodiment of the invention. In Figure 11A. The timing controller 11 can control the display panel driver 12 to drive the sub-pixels of the data lines D3, D4 in a second driving manner to avoid an over-temperature event of the display panel driver 12. As shown by the direction of the arrow in FIG. 11A, taking the data line D3 as an example, the display panel driver 12 will sequentially drive the first sub-pixel 1001 (red sub-pixel R) and the second sub-pixel 1002 (green sub-pixel). G), fourth sub-pixel 1004 (green sub-pixel G) and third sub-pixel 1003 (red sub-pixel R). Taking the data line D4 as an example, the display panel driver 12 will sequentially drive the first sub-pixel 1011 (blue sub-pixel B), the second sub-pixel 1012 (white sub-pixel W), and the fourth sub-pixel 1014. (white subpixel W) and third subpixel 1013 (blue subpixel B).
圖11B是依照本發明的一實施例說明圖11A的資料線D3、D4上的灰階電壓擺幅的示意圖。如圖11B所示，當資料線D3、D4上的子畫素以第二驅動方式時，資料線D3、D4上的第一至第四子畫素所對應的灰階值的載入順序將由圖10B所示的順序（255, 0, 255, 0）被調整為圖11B所示的順序（255, 0, 0, 255）。即，第二驅動方式可拉長顯示面板驅動器12對子畫素進行充放電的時間間隔，因而可避免顯示面板驅動器12發生過溫事件。Figure 11B is a schematic diagram showing the gray scale voltage swing on data lines D3, D4 of Figure 11A, in accordance with an embodiment of the present invention. As shown in FIG. 11B, when the sub-pixels on the data lines D3, D4 are in the second driving mode, the loading order of the grayscale values corresponding to the first to fourth sub-pixels on the data lines D3, D4 will be The order (255, 0, 255, 0) shown in Fig. 10B is adjusted to the order (255, 0, 0, 255) shown in Fig. 11B. That is, the second driving method can lengthen the time interval during which the display panel driver 12 charges and discharges the sub-pixels, thereby avoiding an over-temperature event of the display panel driver 12.
以下將說明時序控制器11如何透過時脈訊號CLK的調整來改變顯示面板驅動器12的驅動方式。圖10C是依照本發明的一實施例說明圖10A的第一驅動方式的時序圖。圖11C是依照本發明的一實施例說明圖11A的第二驅動方式的時序圖。於圖10C與圖11C中，CLK1～CLK4表示圖8的時脈訊號CLK，SD1～SD4表示顯示面板驅動器12的源極驅動器的輸出訊號。當顯示面板驅動器12採用第一驅動方式運作而發生過溫事件時，時序控制器11可對第一至第四子畫素載入灰階電壓的載入順序進行調整。例如：時序控制器11可將該特定畫素圖案的載入順序從「第一子畫素、第二子畫素、第三子畫素、第四子畫素」（如圖10C所示SD1～SD4的順序）調整為「第一子畫素、第二子畫素、第四子畫素、第三子畫素」（如圖11C所示SD1～SD4的順序）。因此，資料線D3、D4上的第一至第四子畫素可呈現圖11B的灰階電壓驅動波形，藉此拉長對子畫素進行充放電的時間間隔。How the timing controller 11 changes the driving mode of the display panel driver 12 by adjusting the clock signal CLK will be described below. Figure 10C is a timing diagram illustrating the first driving mode of Figure 10A, in accordance with an embodiment of the present invention. Figure 11C is a timing diagram illustrating the second driving mode of Figure 11A, in accordance with an embodiment of the present invention. In FIGS. 10C and 11C, CLK1 to CLK4 indicate the clock signal CLK of FIG. 8, and SD1 to SD4 indicate the output signals of the source driver of the panel driver 12. When the display panel driver 12 operates in the first driving mode and an over temperature event occurs, the timing controller 11 can adjust the loading order of the first to fourth sub-pixel loading gray scale voltages. For example, the timing controller 11 can load the specific pixel pattern from the first sub-pixel, the second sub-pixel, the third sub-pixel, and the fourth sub-pixel (as shown in FIG. 10C). The order of -SD4 is adjusted to "first sub-pixel, second sub-pixel, fourth sub-pixel, and third sub-pixel" (in the order of SD1 to SD4 as shown in FIG. 11C). Therefore, the first to fourth sub-pixels on the data lines D3, D4 can exhibit the gray scale voltage driving waveform of FIG. 11B, thereby elongating the time interval for charging and discharging the sub-pixels.
此外，在其他實施例中，時序控制器11亦可將所述第一至第四子畫素載入灰階電壓的載入順序從「第一子畫素、第二子畫素、第三子畫素、第四子畫素」調整為「第二子畫素、第一子畫素、第三子畫素、第四子畫素」，或調整為「第一子畫素、第三子畫素、第二子畫素、第四子畫素」，或調整為「第四子畫素、第二子畫素、第三子畫素、第一子畫素」，以改變所述第一至第四子畫素的驅動順序，進而達到讓顯示面板驅動器12降溫的需求。In addition, in other embodiments, the timing controller 11 may also load the first to fourth sub-pixels into the gray-scale voltage from the first sub-pixel, the second sub-pixel, and the third. Subpixel and fourth subpixel are adjusted to "second subpixel, first subpixel, third subpixel, fourth subpixel", or adjusted to "first subpixel, third Subpixel, second subpixel, fourth subpixel, or adjusted to "fourth subpixel, second subpixel, third subpixel, first subpixel" to change The driving order of the first to fourth sub-pixels, in turn, reaches the demand for the display panel driver 12 to cool down.
綜上所述，本發明諸實施例所述的時序控制器與顯示面板驅動器的溫度管理方法，可透過調整顯示面板上各子畫素的灰階值，以及/或是降低畫素電壓的切換頻率（畫面更新率），以避免顯示面板驅動器（例如源極驅動器）的工作溫度過高。此外，所述時序控制器還可調整對各子畫素載入灰階電壓的載入順序，以避免顯示面板驅動器（例如源極驅動器）的工作溫度過高。因此，所述溫度管理方法可有效避免顯示面板驅動器發生過溫事件。In summary, the temperature management method of the timing controller and the display panel driver according to the embodiments of the present invention can adjust the grayscale value of each sub-pixel on the display panel, and/or reduce the switching of the pixel voltage. Frequency (screen update rate) to avoid excessive operating temperature of the display panel driver (eg source driver). In addition, the timing controller can also adjust the loading order of the grayscale voltages for each sub-pixel to avoid the operating temperature of the display panel driver (eg, the source driver) being too high. Therefore, the temperature management method can effectively avoid an over-temperature event of the display panel driver.
雖然本發明已以實施例揭露如上，然其並非用以限定本發明，任何所屬技術領域中具有通常知識者，在不脫離本發明的精神和範圍內，當可作些許的更動與潤飾，故本發明的保護範圍當視後附的申請專利範圍所界定者為準。Although the present invention has been disclosed in the above embodiments, it is not intended to limit the present invention, and any one of ordinary skill in the art can make some changes and refinements without departing from the spirit and scope of the present invention. The scope of the invention is defined by the scope of the appended claims.
11‧‧‧時序控制器11‧‧‧Timing controller
12‧‧‧顯示面板驅動器 12‧‧‧Display panel driver
13、13T‧‧‧顯示面板 13, 13T‧‧‧ display panel
14、141‧‧‧原顯示畫面 14, 141‧‧‧ original display
15‧‧‧經調整顯示畫面 15‧‧‧Adjusted display
111‧‧‧偵測電路 111‧‧‧Detection circuit
112‧‧‧控制電路 112‧‧‧Control circuit
121‧‧‧源極驅動器 121‧‧‧Source Driver
122‧‧‧閘極驅動器 122‧‧‧gate driver
131～139‧‧‧子畫素 131～139‧‧‧Subpixels
1001、1011‧‧‧第一子畫素 1001, 1011‧‧‧ first sub-pixel
1002、1012‧‧‧第二子畫素 1002, 1012‧‧‧ second sub-pixel
1003、1013‧‧‧第三子畫素 1003, 1013‧‧‧ third sub-pixel
1004、1014‧‧‧第四子畫素 1004, 1014‧‧‧ fourth sub-pixel
1300～1303‧‧‧顯示面板 1300～1303‧‧‧ display panel
B‧‧‧藍色子畫素 B‧‧‧Blue sub-pixel
B1～B4‧‧‧區塊 Block B1~B4‧‧‧
CLK、CLK1～CLK4‧‧‧時脈訊號 CLK, CLK1 ~ CLK4‧‧‧ clock signal
D1～Dn‧‧‧資料線 D1～Dn‧‧‧ data line
DR(Odd)、DG(Odd)、DB(Odd)‧‧‧奇數資料線D R(Odd) , D G(Odd) , D B(Odd) ‧‧‧odd data lines
DR(Even)、DG(Even)、DB(Even)‧‧‧偶數資料線D R (Even) , D G (Even) , D B (Even) ‧‧‧ even data lines
G‧‧‧綠色子畫素 G‧‧‧Green sub-pixel
G1～Gm‧‧‧閘極線 G1～Gm‧‧‧ gate line
P1～P6‧‧‧畫素 P1～P6‧‧‧ pixels
R‧‧‧紅色子畫素 R‧‧‧Red sub-pixel
S10、S20、S30、S40‧‧‧方法步驟 S10, S20, S30, S40‧‧‧ method steps
SD1～SD4‧‧‧源極驅動器的輸出訊號 SD1 ~ SD4‧‧‧ source driver output signal
W‧‧‧白色子畫素 W‧‧‧White sub-pixel
圖1是依照本發明的一實施例的執行溫度管理方法的電路方塊（circuit block）示意圖。 圖2是說明圖1的子畫素配置架構的電路方塊示意圖。 圖3是依照本發明的一實施例的顯示面板驅動器的溫度管理方法的流程示意圖。 圖4A是依照本發明的另一實施例說明圖1所示顯示面板的子畫素配置架構的示意圖。 圖4B-4C是依照本發明的一實施例說明灰階調整策略的示意圖。 圖5A是依照本發明的又一實施例說明圖1所示顯示面板的子畫素配置架構的示意圖。 圖5B-5C是依照本發明的另一實施例說明灰階調整策略的示意圖。 圖6A是依照本發明的再一實施例說明圖1所示顯示面板的子畫素配置架構的示意圖。 圖6B-6C是依照本發明的又一實施例說明灰階調整策略的示意圖。 圖7A是依照本發明的更一實施例說明圖1所示顯示面板的子畫素配置架構的示意圖。 圖7B-7C是依照本發明的再一實施例說明灰階調整策略的示意圖。 圖8是依照本發明的另一實施例的執行溫度管理方法的電路方塊示意圖。 圖9是依照本發明的一實施例說明圖8的顯示面板驅動器的溫度管理方法的流程示意圖。 圖10A是依照本發明的一實施例說明圖8所示顯示面板的子畫素以第一驅動方式運作的示意圖。 圖10B是依照本發明的一實施例說明圖10A的資料線D3、D4上的灰階電壓擺幅的示意圖。 圖10C是依照本發明的一實施例說明圖10A的第一驅動方式的時序圖。 圖11A是依照本發明的一實施例說明圖10A所示顯示面板的子畫素以第二驅動方式運作的示意圖。 圖11B是依照本發明的一實施例說明圖11A的資料線D3、D4上的灰階電壓擺幅的示意圖。 圖11C是依照本發明的一實施例說明圖11A的第二驅動方式的時序圖。1 is a schematic diagram of a circuit block for performing a temperature management method in accordance with an embodiment of the present invention. 2 is a circuit block diagram illustrating the sub-pixel configuration architecture of FIG. 1. 3 is a flow chart showing a method of temperature management of a display panel driver in accordance with an embodiment of the present invention. 4A is a schematic diagram showing a sub-pixel configuration architecture of the display panel of FIG. 1 according to another embodiment of the present invention. 4B-4C are schematic diagrams illustrating a grayscale adjustment strategy in accordance with an embodiment of the present invention. FIG. 5A is a schematic diagram showing a sub-pixel configuration architecture of the display panel of FIG. 1 according to still another embodiment of the present invention. 5B-5C are schematic diagrams illustrating a grayscale adjustment strategy in accordance with another embodiment of the present invention. FIG. 6A is a schematic diagram showing a sub-pixel configuration architecture of the display panel of FIG. 1 according to still another embodiment of the present invention. 6B-6C are schematic diagrams illustrating a grayscale adjustment strategy in accordance with yet another embodiment of the present invention. FIG. 7A is a schematic diagram showing a sub-pixel configuration architecture of the display panel of FIG. 1 according to a further embodiment of the present invention. 7B-7C are schematic diagrams illustrating a grayscale adjustment strategy in accordance with still another embodiment of the present invention. FIG. 8 is a circuit block diagram of a method of performing temperature management in accordance with another embodiment of the present invention. FIG. 9 is a flow chart showing a temperature management method of the display panel driver of FIG. 8 according to an embodiment of the invention. FIG. 10A is a schematic diagram showing operation of a sub-pixel of the display panel of FIG. 8 in a first driving manner according to an embodiment of the invention. FIG. 10B is a schematic diagram showing the gray scale voltage swing on the data lines D3, D4 of FIG. 10A in accordance with an embodiment of the present invention. Figure 10C is a timing diagram illustrating the first driving mode of Figure 10A, in accordance with an embodiment of the present invention. FIG. 11A is a schematic diagram showing the operation of the sub-pixel of the display panel shown in FIG. 10A in the second driving mode according to an embodiment of the invention. Figure 11B is a schematic diagram showing the gray scale voltage swing on data lines D3, D4 of Figure 11A, in accordance with an embodiment of the present invention. Figure 11C is a timing diagram illustrating the second driving mode of Figure 11A, in accordance with an embodiment of the present invention.
Claims (14)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW107113758A TWI657423B (en) | 2018-04-23 | 2018-04-23 | Timing controller and temperature management method for display panel driver |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW107113758A TWI657423B (en) | 2018-04-23 | 2018-04-23 | Timing controller and temperature management method for display panel driver |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| TWI657423B true TWI657423B (en) | 2019-04-21 |
| TW201944374A TW201944374A (en) | 2019-11-16 |
Family
ID=66996008
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| TW107113758A TWI657423B (en) | 2018-04-23 | 2018-04-23 | Timing controller and temperature management method for display panel driver |
Country Status (1)
| Country | Link |
|---|---|
| TW (1) | TWI657423B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112542141A (en) * | 2020-12-01 | 2021-03-23 | Tcl华星光电技术有限公司 | Display device and driving method thereof |
| CN115050325A (en) * | 2022-08-12 | 2022-09-13 | 江苏迈特菲光电技术有限公司 | Temperature control data processing method suitable for OLED display |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102800276A (en) * | 2012-05-22 | 2012-11-28 | 友达光电股份有限公司 | Display device and operation method thereof |
| CN104575440A (en) * | 2015-02-15 | 2015-04-29 | 京东方科技集团股份有限公司 | Display driving circuit, driving method of display driving circuit and display device |
| CN106128407A (en) * | 2016-09-13 | 2016-11-16 | 深圳市华星光电技术有限公司 | Image element driving method and pixel driver system |
| CN106782421A (en) * | 2017-03-10 | 2017-05-31 | 深圳市华星光电技术有限公司 | Image element driving method and device |
-
2018
- 2018-04-23 TW TW107113758A patent/TWI657423B/en active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102800276A (en) * | 2012-05-22 | 2012-11-28 | 友达光电股份有限公司 | Display device and operation method thereof |
| CN104575440A (en) * | 2015-02-15 | 2015-04-29 | 京东方科技集团股份有限公司 | Display driving circuit, driving method of display driving circuit and display device |
| CN106128407A (en) * | 2016-09-13 | 2016-11-16 | 深圳市华星光电技术有限公司 | Image element driving method and pixel driver system |
| CN106782421A (en) * | 2017-03-10 | 2017-05-31 | 深圳市华星光电技术有限公司 | Image element driving method and device |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112542141A (en) * | 2020-12-01 | 2021-03-23 | Tcl华星光电技术有限公司 | Display device and driving method thereof |
| US11705055B2 (en) | 2020-12-01 | 2023-07-18 | Tcl China Star Optoelectronics Technology Co., Ltd. | Display device and method of driving thereof |
| CN115050325A (en) * | 2022-08-12 | 2022-09-13 | 江苏迈特菲光电技术有限公司 | Temperature control data processing method suitable for OLED display |
| CN115050325B (en) * | 2022-08-12 | 2022-10-21 | 江苏迈特菲光电技术有限公司 | Temperature control data processing method suitable for OLED display |
Also Published As
| Publication number | Publication date |
|---|---|
| TW201944374A (en) | 2019-11-16 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US10467941B2 (en) | Display device and method of sub-pixel transition | |
| US7920114B2 (en) | Driving device for display panel, display panel, display device including the driving device, and method for driving display panel | |
| KR101450868B1 (en) | Display device and driving method of the same | |
| US9171517B2 (en) | Display device, driving device, and driving method | |
| JP5405593B2 (en) | Liquid crystal display | |
| US8605024B2 (en) | Liquid crystal display device | |
| US20120327137A1 (en) | Display device and display driving method | |
| US8416175B2 (en) | Liquid crystal display device and method for driving the same | |
| JP2004279626A (en) | Display device and its driving method | |
| WO2013069515A1 (en) | Display device and method for driving same | |
| US8232932B2 (en) | Display device | |
| WO2012057044A1 (en) | Display device, display method for same, and liquid crystal display device | |
| JP2011018020A (en) | Display panel driving method, gate driver and display apparatus | |
| JP5373209B2 (en) | Display device and driving method | |
| US20090102777A1 (en) | Method for driving liquid crystal display panel with triple gate arrangement | |
| JP2010286849A (en) | Method of driving pixel for display of portable information equipment | |
| US20140125644A1 (en) | Display panel and driving method thereof, and display apparatus | |
| JP2006171729A (en) | Liquid crystal display | |
| TWI657423B (en) | Timing controller and temperature management method for display panel driver | |
| KR101885380B1 (en) | Apparatus and method for decressing power comsumption of display device | |
| KR101897277B1 (en) | Display device, Method for controlling a picture quility | |
| JP5037176B2 (en) | Liquid crystal display | |
| CN110503909A (en) | The method for managing temperature of sequence controller and display panel drive | |
| KR102526019B1 (en) | Display device | |
| KR20170124870A (en) | Display device and driving method thereof |